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 2012-03-25: Simon Goldschmidt
84 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
85 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
87 2012-03-25: Simon Goldschmidt
88 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
89 pollution in api_msg.c and netifapi.c
91 2012-03-22: Simon Goldschmidt
92 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
94 2012-03-20: Simon Goldschmidt (patch by Mason)
95 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
97 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
98 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
99 possible bug on little endian system
101 2012-02-23: Simon Goldschmidt
102 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
103 (introduced when fixing bug# 33551)
105 2012-02-16: Simon Goldschmidt
106 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
107 (bug #35541: PPP Memory Leak)
109 2012-02-16: Simon Goldschmidt
110 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
111 (introduced when fixing bug# 33551)
113 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
114 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
116 2012-02-15: Simon Goldschmidt
117 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
120 2012-02-12: Simon Goldschmidt
121 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
122 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
124 2012-02-11: Simon Goldschmidt
125 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
128 2012-01-22: Simon Goldschmidt
129 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
131 2012-01-21: Simon Goldschmidt
132 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
134 2012-01-20: Simon Goldschmidt
135 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
137 2012-01-20: Simon Goldschmidt
138 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
140 2011-11-25: Simon Goldschmidt
141 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
142 tcp_active_pcbs in some cases
144 2011-11-23: Simon Goldschmidt
145 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
148 2011-11-22: Simon Goldschmidt
149 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
150 netif is brought down
152 2011-10-28: Simon Goldschmidt
153 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
155 2011-10-23: Simon Goldschmidt
156 * mem.c: fixed bug #34429: possible memory corruption with
157 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
159 2011-10-18: Simon Goldschmidt
160 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
163 2011-10-18: Simon Goldschmidt
164 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
165 windows (bug #34176 select after non-blocking send times out)
167 2011-10-18: Simon Goldschmidt
168 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
169 consider netif->mtu, causes slow network
171 2011-10-18: Simon Goldschmidt
172 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
174 2011-10-18: Simon Goldschmidt
175 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
177 2011-10-17: Simon Goldschmidt
178 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
180 2011-10-13: Simon Goldschmidt
181 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
182 zero window is received) by starting the persist timer when a zero window is
183 received, not when we have more data queued for sending than fits into the
186 2011-10-13: Simon Goldschmidt
187 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
189 2011-10-13: Simon Goldschmidt
190 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
191 used and not all protocols are enabled
193 2011-10-12: Simon Goldschmidt
194 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
196 2011-10-09: Simon Goldschmidt
197 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
198 byte value when pcb->unacked != NULL
200 2011-10-09: Simon Goldschmidt
201 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
203 2011-09-27: Simon Goldschmidt
204 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
206 2011-09-27: Simon Goldschmidt
207 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
209 2011-09-27: Simon Goldschmidt
210 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
212 2011-09-24: Simon Goldschmidt
213 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
215 2011-09-23: Simon Goldschmidt
216 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
217 the last packet including FIN can lose data
219 2011-09-22: Simon Goldschmidt
220 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
223 2011-09-21: Simon Goldschmidt
224 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
227 2011-09-20: Simon Goldschmidt
228 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
230 2011-09-11: Simon Goldschmidt
231 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
234 2011-09-09: Simon Goldschmidt
235 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
238 2011-09-03: Simon Goldschmidt
239 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
240 is aggregated and sent to application
242 2011-09-01: Simon Goldschmidt
243 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
246 2011-09-01: Simon Goldschmidt
247 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
249 2011-08-24: Simon Goldschmidt
250 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
252 2011-08-24: Simon Goldschmidt
253 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
254 accept() on UDP connections
256 2011-08-24: Simon Goldschmidt
257 * sockets.h: fixed bug #34057 socklen_t should be a typedef
259 2011-08-24: Simon Goldschmidt
260 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
262 2011-08-24: Simon Goldschmidt
263 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
265 2011-08-24: Simon Goldschmidt
266 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
268 2011-08-22: Simon Goldschmidt
269 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
270 merely prevents nagle from not transmitting fast after closing.)
272 2011-07-22: Simon Goldschmidt
273 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
274 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
275 lwip_send() sends as much as possible for non-blocking sockets
277 2011-07-22: Simon Goldschmidt
278 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
279 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
280 at regular intervals from main level.
282 2011-07-21: Simon Goldschmidt
283 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
284 sending an ARP request when an ARP entry is used in the last minute before
287 2011-07-04: Simon Goldschmidt
288 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
290 2011-06-26: Simon Goldschmidt
291 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
292 updating its documentation only.
294 2011-06-26: Simon Goldschmidt
295 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
298 2011-06-26: Simon Goldschmidt
299 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
307 2011-03-27: Simon Goldschmidt
308 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
309 calculate it in tcp_zero_window_probe (the only place where it was used).
311 2010-11-21: Simon Goldschmidt
312 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
315 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
316 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
317 IP_MULTICAST_LOOP at socket- and raw-API level.
319 2010-06-16: Simon Goldschmidt
320 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
321 link-layer-addressed UDP traffic to be received while a netif is down (just
322 like DHCP during configuration)
324 2010-05-22: Simon Goldschmidt
325 * many many files: bug #27352: removed packing from ip_addr_t, the packed
326 version is now only used in protocol headers. Added global storage for
327 current src/dest IP address while in input functions.
329 2010-05-16: Simon Goldschmidt
330 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
331 calculation (and use them throughout the stack where applicable)
333 2010-05-16: Simon Goldschmidt
334 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
335 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
337 2010-05-16: Simon Goldschmidt
338 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
339 MEMP pool instead of the heap
341 2010-05-13: Simon Goldschmidt
342 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
343 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
344 packets to more than one pcb.
346 2010-05-02: Simon Goldschmidt
347 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
348 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
350 2010-04-30: Simon Goldschmidt
351 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
352 take a precalculated checksum, added pbuf_fill_chksum() to copy data
353 into a pbuf and at the same time calculating the checksum for that data
355 2010-04-29: Simon Goldschmidt
356 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
357 2-byte-aligned IP addresses and MAC addresses
359 2010-04-28: Patch by Bill Auerbach
360 * ip.c: Inline generating IP checksum to save a function call
362 2010-04-14: Simon Goldschmidt
363 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
364 tcpip_thread processes messages or timeouts to implement a watchdog.
366 2010-03-28: Simon Goldschmidt
367 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
368 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
370 2010-03-27: Simon Goldschmidt
371 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
372 etharp_query to prevent unnecessary function calls (inspired by
375 2010-03-20: Simon Goldschmidt
376 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
377 since the linker cannot do this automatically to save space.
379 2010-03-20: Simon Goldschmidt
380 * opt.h, etharp.c/.h: Added support for static ARP table entries
382 2010-03-14: Simon Goldschmidt
383 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
384 when creating TCP segments, not when (re-)transmitting them.
386 2010-03-07: Simon Goldschmidt
387 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
388 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
389 This should speed up receiving data on sockets as the select code in
390 event_callback is only executed when select is waiting.
392 2010-03-06: Simon Goldschmidt
393 * tcp_out.c: task #7013 (Create option to have all packets delivered to
394 netif->output in one piece): Always copy to try to create single pbufs
397 2010-03-06: Simon Goldschmidt
398 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
399 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
400 for tcp netconns to receive pbufs, not netbufs; use that function
403 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
404 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
405 Work on tcp_enqueue: Don't waste memory when chaining segments,
406 added option TCP_OVERSIZE to prevent creating many small pbufs when
407 calling tcp_write with many small blocks of data. Instead, pbufs are
408 allocated larger than needed and the space is used for later calls to
411 2010-02-21: Simon Goldschmidt
412 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
415 2010-02-21: Simon Goldschmidt
416 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
417 implementation of tcp to make API usage cleare to application programmers
419 2010-02-14: Simon Goldschmidt/Stephane Lesage
420 * ip_addr.h: Improved some defines working on ip addresses, added faster
421 macro to copy addresses that cannot be NULL
423 2010-02-13: Simon Goldschmidt
424 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
425 blocking send operation)
427 2010-02-12: Simon Goldschmidt
428 * sockets.c/.h: Added a minimal version of posix fctl() to have a
429 standardised way to set O_NONBLOCK for nonblocking sockets.
431 2010-02-12: Simon Goldschmidt
432 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
433 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
434 and dhcp work with user-allocated structs instead of callin mem_malloc
436 2010-02-12: Simon Goldschmidt/Jeff Barber
437 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
438 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
440 2010-02-12: Simon Goldschmidt
441 * sys layer: task #10139 (Prefer statically allocated memory): converted
442 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
443 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
444 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
445 to let sys.h use binary semaphores instead of mutexes - as before)
447 2010-02-09: Simon Goldschmidt (Simon Kallweit)
448 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
449 (Restart system timeout handling)
451 2010-02-09: Simon Goldschmidt
452 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
453 netif.c) - loopif does not have to be created by the port any more,
454 just define LWIP_HAVE_LOOPIF to 1.
456 2010-02-08: Simon Goldschmidt
457 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
458 inet_ntoa_r/ipaddr_ntoa_r
460 2010-02-08: Simon Goldschmidt
461 * netif.h: Added netif_s/get_igmp_mac_filter() macros
463 2010-02-05: Simon Goldschmidt
464 * netif.h: Added function-like macros to get/set the hostname on a netif
466 2010-02-04: Simon Goldschmidt
467 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
468 make changing the actual implementation behind the typedef easier.
470 2010-02-01: Simon Goldschmidt
471 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
472 for allocating memory when getaddrinfo() is called.
474 2010-01-31: Simon Goldschmidt
475 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
476 them once instead of parsing for every option. This also removes
477 the need for mem_malloc from dhcp_recv and makes it possible to
478 correctly retrieve the BOOTP file.
480 2010-01-30: simon Goldschmidt
481 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
484 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
485 * api.h, api_msg.c, sockets.c: Added except set support in select
488 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
489 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
490 Add non-blocking support for connect (partly from patch #6860),
491 plus many cleanups in socket & netconn API.
493 2010-01-27: Simon Goldschmidt
494 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
495 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
497 2010-01-26: Simon Goldschmidt
498 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
500 2010-01-14: Simon Goldschmidt
501 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
502 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
504 2010-01-13: Simon Goldschmidt
505 * mem.c: The heap now may be moved to user-defined memory by defining
506 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
507 (patch #6966 and bug #26133)
509 2010-01-10: Simon Goldschmidt (Bill Auerbach)
510 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
513 2010-01-10: Simon Goldschmidt
514 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
515 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
517 2009-12-31: Simon Goldschmidt
518 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
519 added timers.c/.h: Separated timer implementation from semaphore/mbox
520 implementation, moved timer implementation to timers.c/.h, timers are
521 now only called from tcpip_thread or by explicitly checking them.
524 2009-12-27: Simon Goldschmidt
525 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
526 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
531 2011-04-20: Simon Goldschmidt
532 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
534 2011-04-13: Simon Goldschmidt
535 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
536 using ports in the IANA private/dynamic range (49152 through 65535).
538 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
539 * etharp.h/.c: Fixed broken VLAN support.
541 2011-03-27: Simon Goldschmidt
542 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
543 pcbs) by checking if the pcb was bound (local_port != 0).
545 2011-03-27: Simon Goldschmidt
546 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
548 2011-03-27: Simon Goldschmidt
549 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
550 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
552 2011-03-27: Simon Goldschmidt
553 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
554 is present never times out) by starting retransmission timer before checking
557 2011-03-22: Simon Goldschmidt
558 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
559 calling sio_read_abort() if the file descriptor is valid.
561 2011-03-14: Simon Goldschmidt
562 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
563 more than once can render a socket useless) since it mainly involves changing
564 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
566 2011-03-13: Simon Goldschmidt
567 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
568 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
569 use EALRADY instead of -1
571 2011-03-13: Simon Goldschmidt
572 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
573 connection has been aborted by err_tcp (since this is not a normal closing
576 2011-03-13: Simon Goldschmidt
577 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
578 with pcb->state != CLOSED
580 2011-02-17: Simon Goldschmidt
581 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
584 2011-02-17: Simon Goldschmidt
585 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
587 2011-01-24: Simon Goldschmidt
588 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
590 2010-12-02: Simon Goldschmidt
591 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
593 2010-11-23: Simon Goldschmidt
594 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
595 LWIP_SO_RCVBUF and ioctl/FIONREAD.
597 2010-11-23: Simon Goldschmidt
598 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
599 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
601 2010-11-23: Simon Goldschmidt
602 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
603 refusing 'refused_data' again.
605 2010-11-22: Simon Goldschmidt
606 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
607 after a successful nonblocking connection.
609 2010-11-22: Simon Goldschmidt
610 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
611 must be sent link-local
613 2010-11-22: Simon Goldschmidt
614 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
617 2010-11-20: Simon Goldschmidt
618 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
620 2010-11-20: Simon Goldschmidt
621 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
622 resemble other stacks.
624 2010-11-20: Simon Goldschmidt
625 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
626 no-copy TCP writes will never succeed.
628 2010-11-20: Simon Goldschmidt
629 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
630 not match documentation: return ERR_ARG instead of ERR_VAL if not
631 initialized or wrong argument.
633 2010-10-20: Simon Goldschmidt
634 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
636 2010-10-05: Simon Goldschmidt
637 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
638 replugging the network cable after an AutoIP address was assigned.
640 2010-08-10: Simon Goldschmidt
641 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
643 2010-08-03: Simon Goldschmidt
644 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
646 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
647 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
648 endian architectures)
650 2010-07-28: Simon Goldschmidt
651 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
654 2010-07-27: Simon Goldschmidt
655 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
656 harm but never did anything
658 2010-07-21: Simon Goldschmidt
659 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
662 2010-07-16: Kieran Mansley
663 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
665 2010-07-10: Simon Goldschmidt
666 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
668 2010-06-30: Simon Goldschmidt
669 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
672 2010-06-28: Kieran Mansley
673 * timers.c remove unportable printing of C function pointers
675 2010-06-24: Simon Goldschmidt
676 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
677 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
679 2010-06-24: Simon Goldschmidt
680 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
681 implemented shutdown at socket level.
683 2010-06-21: Simon Goldschmidt
684 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
685 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
686 custom pbufs that reference other (original) pbufs. Additionally set
687 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
689 2010-06-15: Simon Goldschmidt
690 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
692 2010-06-14: Simon Goldschmidt
693 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
695 2010-06-12: Simon Goldschmidt
696 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
699 2010-05-17: Simon Goldschmidt
700 * netdb.c: Correctly NULL-terminate h_addr_list
702 2010-05-16: Simon Goldschmidt
703 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
704 "symbol already defined" i.e. when linking to winsock
706 2010-05-05: Simon Goldschmidt
707 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
710 2010-04-21: Simon Goldschmidt
711 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
714 2010-03-28: Luca Ceresoli
715 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
717 2010-03-27: Luca Ceresoli
718 * mib2.c: patch #7130: remove meaningless const qualifiers
720 2010-03-26: Simon Goldschmidt
721 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
723 2010-03-26: Simon Goldschmidt
724 * various files: Fixed compiling with different options disabled (TCP/UDP),
725 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
727 2010-03-25: Simon Goldschmidt
728 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
730 2010-03-25: Simon Goldschmidt
731 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
732 overrunning our rcv_wnd in ooseq case.
734 2010-03-22: Simon Goldschmidt
735 * tcp.c: tcp_listen() did not copy the pcb's prio.
737 2010-03-19: Simon Goldschmidt
738 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
740 2010-03-14: Simon Goldschmidt
741 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
742 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
743 and basing PBUF_LINK_HLEN on it.
745 2010-03-08: Simon Goldschmidt
746 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
747 when assiging routable address): when checking incoming packets and
748 aborting existing connection on address change, filter out link-local
751 2010-03-06: Simon Goldschmidt
752 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
754 2010-03-06: Simon Goldschmidt
755 * ipv4/ip.c: Don't try to forward link-local addresses
757 2010-03-06: Simon Goldschmidt
758 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
761 2010-03-05: Simon Goldschmidt
762 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
765 2010-03-05: Simon Goldschmidt
766 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
767 into multiple calls to tcp_write.
769 2010-02-21: Simon Goldschmidt
770 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
771 the implementation of DNS_USES_STATIC_BUF==1)
773 2010-02-20: Simon Goldschmidt
774 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
775 close() vs. shutdown(). Now the application does not get any more
776 recv callbacks after calling tcp_close(). Added tcp_shutdown().
778 2010-02-19: Simon Goldschmidt
779 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
780 confusion with realloc()
782 2010-02-15: Simon Goldschmidt/Stephane Lesage
783 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
786 2010-02-14: Simon Goldschmidt
787 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
788 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
789 admin-status of a netif are up
791 2010-02-14: Simon Goldschmidt
792 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
793 reception and is not really necessary
795 2010-02-14: Simon Goldschmidt
796 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
797 request was directed as us (RFC 826, Packet Reception), otherwise
798 only update existing entries; internalized some functions
800 2010-02-14: Simon Goldschmidt
801 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
802 disabled on netif used for PPPoE) by adding a new netif flag
803 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
804 device but prevents usage of ARP (so that ethernet_input can be used
807 2010-02-12: Simon Goldschmidt
808 * netif.c: netif_set_link_up/down: only do something if the link state
811 2010-02-12: Simon Goldschmidt/Stephane Lesage
812 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
815 2010-02-12: Simon Goldschmidt
816 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
818 2010-02-09: Simon Goldschmidt
819 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
820 (recv() makes receive window update for data that wasn't received by
823 2010-02-09: Simon Goldschmidt/Stephane Lesage
824 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
825 or any netconn_recv() error)
827 2010-02-09: Simon Goldschmidt
828 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
830 2010-02-09: Simon Goldschmidt
831 * netif.c: For loopback packets, adjust the stats- and snmp-counters
832 for the loopback netif.
834 2010-02-08: Simon Goldschmidt
835 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
836 since they are not used anywhere else.
838 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
839 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
840 (patch from bug #28798)
842 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
843 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
844 another bug when LWIP_RAND() returns zero.
846 2010-02-04: Simon Goldschmidt
847 * nearly every file: Use macros defined in ip_addr.h (some of them new)
848 to work with IP addresses (preparation for bug #27352 - Change ip_addr
849 from struct to typedef (u32_t) - and better code).
851 2010-01-31: Simon Goldschmidt
852 * netif.c: Don't call the link-callback from netif_set_up/down() since
853 this invalidly retriggers DHCP.
855 2010-01-29: Simon Goldschmidt
856 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
857 portability file inet.h and its contents from the stack: moved htonX-
858 functions to def.h (and the new def.c - they are not ipv4 dependent),
859 let inet.h depend on ip_addr.h and not the other way round.
860 This fixes bug #28732.
862 2010-01-28: Kieran Mansley
863 * tcp.c: Ensure ssthresh >= 2*MSS
865 2010-01-27: Simon Goldschmidt
866 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
867 callback can lead to accessing unallocated memory. As a consequence,
868 ERR_ABRT means the application has called tcp_abort()!
870 2010-01-25: Simon Goldschmidt
871 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
872 not implemented in SNMP): write-only or not-accessible are still
873 returned by getnext (though not by get)
875 2010-01-24: Simon Goldschmidt
876 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
877 not use reserved C/C++ keywords
879 2010-01-23: Simon Goldschmidt
880 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
883 2010-01-21: Simon Goldschmidt
884 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
885 if tcp_enqueue fails) both in raw- and netconn-API
887 2010-01-19: Simon Goldschmidt
888 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
890 2010-01-18: Iordan Neshev/Simon Goldschmidt
891 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
892 bugfix backports from 2.4.x.
894 2010-01-18: Simon Goldschmidt
895 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
897 2010-01-17: Simon Goldschmidt
898 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
899 task #10102: "netconn: clean up conn->err threading issues" by adding
900 error return value to struct api_msg_msg
902 2010-01-17: Simon Goldschmidt
903 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
904 to return err_t (bugs #27709 and #28087)
906 2010-01-14: Simon Goldschmidt
907 * ...: Use typedef for function prototypes throughout the stack.
909 2010-01-13: Simon Goldschmidt
910 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
911 window = 0) by correctly draining recvmbox/acceptmbox
913 2010-01-11: Simon Goldschmidt
914 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
915 erroneous callbacks) by copying the code from recent pppd
917 2010-01-10: Simon Goldschmidt
918 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
920 2010-01-10: Simon Goldschmidt
921 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
923 2010-01-08: Simon Goldschmidt
924 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
926 2010-01-08: Simon Goldschmidt
927 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
928 passed to dns_local_addhost() might be volatile
930 2010-01-07: Simon Goldschmidt
931 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
933 2010-01-06: Simon Goldschmidt
934 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
936 2009-12-31: Simon Goldschmidt
937 * many ppp files: Reorganised PPP source code from ucip structure to pppd
938 structure to easily compare our code against the pppd code (around v2.3.1)
940 2009-12-27: Simon Goldschmidt
941 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
949 2009-10-27 Simon Goldschmidt/Stephan Lesage
950 * netifapi.c/.h: Added netifapi_netif_set_addr()
952 2009-10-07 Simon Goldschmidt/Fabian Koch
953 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
954 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
956 2009-08-26 Simon Goldschmidt/Simon Kallweit
957 * slipif.c/.h: bug #26397: SLIP polling support
959 2009-08-25 Simon Goldschmidt
960 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
961 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
963 2009-08-25 Simon Goldschmidt
964 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
966 2009-08-24 Jakob Stoklund Olesen
967 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
968 to netif_set_link_up().
970 2009-08-23 Simon Goldschmidt
971 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
972 to a human-readable string.
976 2009-12-24: Kieran Mansley
977 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
980 2009-12-06: Simon Goldschmidt
981 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
982 be statically allocated (like in ucip)
984 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
985 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
987 2009-12-03: Simon Goldschmidt
988 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
989 could have non-zero length
991 2009-12-02: Simon Goldschmidt
992 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
993 tcp_input_pcb until after calling the pcb's callbacks
995 2009-11-29: Simon Goldschmidt
996 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
997 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
999 2009-11-29: Simon Goldschmidt
1000 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1001 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1003 2009-11-26: Simon Goldschmidt
1004 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1007 2009-11-26: Simon Goldschmidt
1008 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1009 algorithm at PCB level
1011 2009-11-22: Simon Goldschmidt
1012 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1014 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1015 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1016 reusing time-wait pcb
1018 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1019 * sockets.c: Fixed bug #28062: Data received directly after accepting
1020 does not wake up select
1022 2009-11-11: Simon Goldschmidt
1023 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1025 2009-10-30: Simon Goldschmidt
1026 * opt.h: Increased default value for TCP_MSS to 536, updated default
1027 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1029 2009-10-28: Kieran Mansley
1030 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1031 to follow algorithm from TCP/IP Illustrated
1033 2009-10-27: Kieran Mansley
1034 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1036 2009-10-25: Simon Goldschmidt
1037 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1038 pcb->recv is NULL to keep rcv_wnd correct)
1040 2009-10-25: Simon Goldschmidt
1041 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1043 2009-10-23: Simon Goldschmidt (David Empson)
1044 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1046 2009-10-21: Simon Goldschmidt
1047 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1048 trailing 1 byte len (SYN/FIN)
1050 2009-10-21: Simon Goldschmidt
1051 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1053 2009-10-19: Simon Goldschmidt
1054 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1055 conditional code to assert where applicable), check pbuf length before
1056 testing for valid reply
1058 2009-10-19: Simon Goldschmidt
1059 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1060 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1062 2009-10-16: Simon Goldschmidt
1063 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1064 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1067 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1068 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1070 2009-10-15: Simon Goldschmidt
1071 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1074 2009-10-15: Simon Goldschmidt
1075 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1076 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1077 of network byte order
1079 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1080 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1081 which are not consecutive when retransmitting unacked segments
1083 2009-10-09 Simon Goldschmidt
1084 * opt.h: Fixed default values of some stats to only be enabled if used
1085 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1087 2009-08-30 Simon Goldschmidt
1088 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1089 function" by checking for loopback before calling ip_frag
1091 2009-08-25 Simon Goldschmidt
1092 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1094 2009-08-23 Simon Goldschmidt
1095 * ppp.c: bug #27078: Possible memory leak in pppInit()
1097 2009-08-23 Simon Goldschmidt
1098 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1101 2009-08-23 Simon Goldschmidt
1102 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1103 Fixed wrong parenthesis, added check in init.c
1105 2009-08-23 Simon Goldschmidt
1106 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1108 2009-08-23 Simon Goldschmidt
1109 * many ppp files: bug #27267: Added include to string.h where needed
1111 2009-08-23 Simon Goldschmidt
1112 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1119 2009-05-10 Simon Goldschmidt
1120 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1121 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1122 one pbuf to help MACs that don't support scatter-gather DMA.
1124 2009-05-09 Simon Goldschmidt
1125 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1126 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1128 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1129 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1130 extended info about the currently received packet.
1132 2009-04-27 Simon Goldschmidt
1133 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1135 2009-04-25 Simon Goldschmidt
1136 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1137 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1139 2009-04-21 Simon Goldschmidt
1140 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1141 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1142 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1143 as an external function for lookup.
1145 2009-04-15 Simon Goldschmidt
1146 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1148 2009-03-31 Kieran Mansley
1149 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1150 TCP timestamp options, off by default. Rework tcp_enqueue() to
1151 take option flags rather than specified option data
1153 2009-02-18 Simon Goldschmidt
1154 * cc.h: Added printf formatter for size_t: SZT_F
1156 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1157 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1160 2009-02-12 Simon Goldschmidt
1161 * init.h: Added LWIP_VERSION to get the current version of the stack
1163 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1164 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1165 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1168 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1169 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1170 is only used by UDPLITE at present, so conditionalise it.
1172 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1173 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1174 "seed" address. This should reduce AUTOIP conflicts if
1175 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1177 2008-10-02 Jonathan Larmour and Rishi Khan
1178 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1181 2008-06-30 Simon Goldschmidt
1182 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1183 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1184 mem_free to run between mem_malloc iterations. Added illegal counter for
1187 2008-06-27 Simon Goldschmidt
1188 * stats.h/.c, some other files: patch #6483: stats module improvement:
1189 Added defines to display each module's statistic individually, added stats
1190 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1192 2008-06-17 Simon Goldschmidt
1193 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1194 (define LWIP_ERR_T in cc.h)
1196 2008-06-17 Simon Goldschmidt
1197 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1200 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1201 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1202 modified version of patch # 6370: Moved loopif code to netif.c so that
1203 loopback traffic is supported on all netifs (all local IPs).
1204 Added option to limit loopback packets for each netifs.
1208 2009-08-12 Kieran Mansley
1209 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1210 out of window or out of order properly
1212 2009-08-12 Kieran Mansley
1213 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1215 2009-07-28 Simon Goldschmidt
1216 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1218 2009-07-27 Kieran Mansley
1219 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1221 2009-07-09 Kieran Mansley
1222 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1223 recv_avail and don't increment counters until message successfully
1226 2009-06-25 Kieran Mansley
1227 * api_msg.c api.h: BUG26722: initialise netconn write variables
1230 2009-06-25 Kieran Mansley
1231 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1233 2009-06-25 Kieran Mansley
1234 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1235 simultaneous close behaviour, and make snd_nxt have the same meaning
1238 2009-05-12 Simon Goldschmidt
1239 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1240 arp_table / uses etharp_query" by adding etharp_gratuitous()
1242 2009-05-12 Simon Goldschmidt
1243 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1244 to the IP header (used by igmp_ip_output_if)
1246 2009-05-06 Simon Goldschmidt
1247 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1248 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1250 2009-05-05 Simon Goldschmidt
1251 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1254 2009-05-04 Simon Goldschmidt
1255 * init.c: snmp was not initialized in lwip_init()
1257 2009-05-04 Frédéric Bernon
1258 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1260 2009-05-03 Simon Goldschmidt
1261 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1262 (and unsent->next == NULL)
1264 2009-05-02 Simon Goldschmidt
1265 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1266 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1268 2009-05-02 Simon Goldschmidt
1269 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1271 2009-05-01 Simon Goldschmidt
1272 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1274 2009-05-01 Simon Goldschmidt
1275 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1277 2009-04-29 Frédéric Bernon
1278 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1279 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1280 of broadcast packets even when this option wasn't set. Port maintainers
1281 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1282 If you want this option also filter broadcast on recv operations, you also
1283 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1285 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1286 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1287 DHCP/AUTOIP cooperation
1289 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1290 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1291 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1292 right place in tcp_output and tcp_rexmit).
1294 2009-04-25 Simon Goldschmidt
1295 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1296 when debugging": memp_sizes contained the wrong sizes (including sanity
1297 regions); memp pools for MEM_USE_POOLS were too small
1299 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1300 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1301 behavior, with with ip address string not ended by a '\0', a space or a
1304 2009-04-19 Simon Goldschmidt
1305 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1306 pcb->err is called, not pcb->connected (with an error code).
1308 2009-04-19 Simon Goldschmidt
1309 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1310 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1312 2009-04-19 Simon Goldschmidt
1313 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1314 in the header pbuf, not the data pbuf)
1316 2009-04-18 Simon Goldschmidt
1317 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1319 2009-04-15 Simon Goldschmidt
1320 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1322 2009-04-15 Simon Goldschmidt
1323 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1325 2009-04-15 Simon Goldschmidt
1326 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1327 ip_hinted_output() (for smaller code mainly)
1329 2009-04-15 Simon Goldschmidt
1330 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1332 2009-04-15 Simon Goldschmidt
1333 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1334 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1335 is big enough in dhcp_start
1337 2009-04-15 Simon Goldschmidt
1338 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1340 2009-04-15 Simon Goldschmidt
1341 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1343 2009-04-15 Simon Goldschmidt
1344 * sockets.c: bug #26121: set_errno can be overridden
1346 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1347 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1350 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1351 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1354 2009-03-31 Kieran Mansley
1355 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1356 updates are calculated and sent (BUG20515)
1358 * tcp_in.c: cope with SYN packets received during established states,
1359 and retransmission of initial SYN.
1361 * tcp_out.c: set push bit correctly when tcp segments are merged
1363 2009-03-27 Kieran Mansley
1364 * tcp_out.c set window correctly on probes (correcting change made
1367 2009-03-26 Kieran Mansley
1368 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1369 connections where no reset required (bug #25622)
1371 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1374 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1375 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1376 too small depending on MEM_ALIGNMENT
1378 2009-02-16 Simon Goldschmidt
1379 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1380 converted size argument of netconn_write to 'size_t'
1382 2009-02-16 Simon Goldschmidt
1383 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1384 by moving accept callback function pointer to TCP_PCB_COMMON
1386 2009-02-12 Simon Goldschmidt
1387 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1390 2009-02-11 Simon Goldschmidt
1391 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1393 2009-02-11 Simon Goldschmidt
1394 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1395 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1397 2009-02-10 Simon Goldschmidt
1398 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1399 Accepts_pending is decrease on a corresponding listen pcb when a connection
1400 in state SYN_RCVD is close.
1402 2009-01-28 Jonathan Larmour
1403 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1406 2008-12-19 Simon Goldschmidt
1407 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1409 2008-12-10 Tamas Somogyi, Frédéric Bernon
1410 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1411 port uses deleted netbuf.
1413 2008-10-18 Simon Goldschmidt
1414 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1417 2008-10-15 Simon Goldschmidt
1418 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1419 by packing the struct ip_reass_helper.
1421 2008-10-03 David Woodhouse, Jonathan Larmour
1422 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1424 2008-10-02 Jonathan Larmour
1425 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1426 padding is included.
1428 2008-09-30 Jonathan Larmour
1429 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1430 assertion check that addrlen isn't NULL.
1432 2008-09-30 Jonathan Larmour
1433 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1435 2008-08-26 Simon Goldschmidt
1436 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1437 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1439 2008-08-14 Simon Goldschmidt
1440 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1441 tcp_close returns != ERR_OK)
1443 2008-07-08 Frédéric Bernon
1444 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1445 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1447 2008-06-24 Jonathan Larmour
1448 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1449 if tcp_seg_copy fails.
1451 2008-06-17 Simon Goldschmidt
1452 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1453 and created defines for swapping bytes and folding u32 to u16.
1455 2008-05-30 Kieran Mansley
1456 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1457 rather than rcv_ann_wnd when deciding if packets are in-window.
1458 Contributed by <arasmussen@consultant.datasys.swri.edu>
1460 2008-05-30 Kieran Mansley
1461 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1462 passing as function pointers when MEM_LIBC_MALLOC is defined.
1464 2008-05-09 Jonathan Larmour
1465 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1466 stop it being treated as a fatal error.
1468 2008-04-15 Simon Goldschmidt
1469 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1472 2008-03-27 Simon Goldschmidt
1473 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1474 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1475 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1476 or heap memory from interrupt context
1478 2008-03-26 Simon Goldschmidt
1479 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1480 host sent a zero mss as TCP option.
1487 2008-03-10 Jonathan Larmour
1488 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1489 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1491 2008-01-22 Frédéric Bernon
1492 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1493 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1495 2008-01-14 Frédéric Bernon
1496 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1497 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1498 tcp_recv callback (see rawapi.txt).
1500 2008-01-14 Frédéric Bernon, Marc Chaland
1501 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1503 2008-01-12 Frédéric Bernon
1504 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1505 netconn::sem per netconn::op_completed like suggested for the task #7490
1506 "Add return value to sys_mbox_post".
1508 2008-01-12 Frédéric Bernon
1509 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1510 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1511 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1513 2008-01-10 Frédéric Bernon
1514 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1515 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1516 "blocking" ("block" parameter = 1).
1518 2008-01-10 Frédéric Bernon
1519 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1520 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1521 "Add return value to sys_mbox_post".
1523 2008-01-05 Frédéric Bernon
1524 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1525 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1526 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1527 indicate the number of pointers query by the mailbox. There is three defines
1528 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1529 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1530 parameter in your implementation, but to ignore it to keep the previous behavior.
1531 The new sys_mbox_trypost function return a value to know if the mailbox is
1532 full or if the message is posted. Take a look to sys_arch.txt for more details.
1533 This new function is used in tcpip_input (so, can be called in an interrupt
1534 context since the function is not blocking), and in recv_udp and recv_raw.
1536 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1537 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1538 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1539 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1540 documentation in the rawapi.txt file.
1542 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1543 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1545 2007-12-31 Frédéric Bernon, Luca Ceresoli
1546 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1547 in autoip". The change in etharp_raw could be removed, since all calls to
1548 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1549 wrong in the future.
1551 2007-12-30 Frédéric Bernon, Tom Evans
1552 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1553 Filtering" reported by Tom Evans.
1555 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1556 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1557 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1558 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1559 keep accepting new connections.
1561 2007-12-13 Frédéric Bernon
1562 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1563 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1565 2007-12-12 Frédéric Bernon
1566 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1567 are the one which have ram usage.
1569 2007-12-05 Frédéric Bernon
1570 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1571 set of variables (=0) or a local one (=1). In this last case, your port should
1572 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1573 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1575 2007-12-03 Simon Goldschmidt
1576 * ip.c: ip_input: check if a packet is for inp first before checking all other
1577 netifs on netif_list (speeds up packet receiving in most cases)
1579 2007-11-30 Simon Goldschmidt
1580 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1581 UDP: move a (connected) pcb selected for input to the front of the list of
1582 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1585 2007-11-28 Simon Goldschmidt
1586 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1588 2007-11-25 Simon Goldschmidt
1589 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1592 2007-11-24 Simon Goldschmidt
1593 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1594 to the new file netdb.c; included lwip_getaddrinfo.
1596 2007-11-21 Simon Goldschmidt
1597 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1598 based on the MTU of the netif used to send. Enabled by default. Disable by
1599 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1601 2007-11-19 Frédéric Bernon
1602 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1603 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1604 copy dns payload to parse the response), return an error if there is no place
1605 for a new query, and fix some minor problems.
1607 2007-11-16 Simon Goldschmidt
1608 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1609 removed files: core/inet.c, core/inet6.c
1610 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1611 inet and chksum part; changed includes in all lwIP files as appropriate
1613 2007-11-16 Simon Goldschmidt
1614 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1615 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1616 (gethostbyname/gethostbyname_r).
1618 2007-11-15 Jim Pettinato, Frédéric Bernon
1619 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1620 requests with RAW api interface. Initialization is done in lwip_init() with
1621 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1622 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1623 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1624 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1625 list with points to improve.
1627 2007-11-06 Simon Goldschmidt
1628 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1629 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1630 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1632 2007-11-06 Simon Goldschmidt
1633 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1634 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1635 implementation from netconn api applications.
1637 2007-11-03 Frédéric Bernon
1638 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1639 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1640 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1641 it. This is a first release which have to be improve for TCP. Note it used the
1642 netconn::recv_avail which need to be more "thread-safe" (note there is already
1643 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1645 2007-11-01 Frédéric Bernon, Marc Chaland
1646 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1647 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1648 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1649 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1650 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1652 2007-10-24 Frédéric Bernon
1653 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1654 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1655 some code (like we have talk in "patch #5919 : Create compile switch to remove
1656 select code"), but it could be done later.
1658 2007-10-08 Simon Goldschmidt
1659 * many files: Changed initialization: many init functions are not needed any
1660 more since we now rely on the compiler initializing global and static
1663 2007-10-06 Simon Goldschmidt
1664 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1665 to enqueue the received pbufs so that multiple packets can be reassembled
1666 simultaneously and no static reassembly buffer is needed.
1668 2007-10-05 Simon Goldschmidt
1669 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1670 all netifs (or ports) can use it.
1672 2007-10-05 Frédéric Bernon
1673 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1674 common function to reduce a little bit the footprint (for all functions using
1675 only the "netif" parameter).
1677 2007-10-03 Frédéric Bernon
1678 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1679 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1680 a little bit the footprint (for all functions using only the "netif" parameter).
1682 2007-09-15 Frédéric Bernon
1683 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1684 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1685 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1686 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1688 2007-09-10 Frédéric Bernon
1689 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1690 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1691 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1692 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1693 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1694 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1695 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1696 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1697 when it's queried (any direct call to "sysuptime" is changed by a call to
1698 snmp_get_sysuptime).
1700 2007-09-09 Frédéric Bernon, Bill Florac
1701 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1702 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1703 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1704 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1705 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1706 the next query message to receive the matching multicast streams).
1708 2007-09-08 Frédéric Bernon
1709 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1710 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1711 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1712 Enable to access to these fields with LWIP_TCP=0.
1714 2007-09-05 Frédéric Bernon
1715 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1716 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1717 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1718 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1719 help to reduce footprint, and to reduce "visibility" on the Internet.
1721 2007-09-05 Frédéric Bernon, Bill Florac
1722 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1723 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1724 parameters have to be provided: a task name, and a task stack size. For this
1725 one, since it's platform dependant, you could define the best one for you in
1726 your lwipopts.h. For port maintainers, you can just add these new parameters
1727 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1730 2007-09-05 Frédéric Bernon
1731 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1732 inside init.c for task #7142 "Sanity check user-configurable values".
1734 2007-09-04 Frédéric Bernon, Bill Florac
1735 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1736 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1737 value). It will avoid potential fragmentation problems, use a counter to know
1738 how many times a group is used on an netif, and free it when all applications
1739 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1740 check if LWIP_IGMP!=0).
1742 2007-09-03 Frédéric Bernon
1743 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1744 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1745 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1746 and/or the "interface" field (for netconn layer), for join/leave operations.
1747 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1748 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1750 2007-08-30 Frédéric Bernon
1751 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1752 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1753 with other API (application based on raw API, or future "socket2" API). Ports
1754 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1756 2007-08-30 Frédéric Bernon, Jonathan Larmour
1757 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1758 user-configurable values".
1760 2007-08-29 Frédéric Bernon
1761 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1762 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1763 spirit than the others modules. Modify some IGMP debug traces.
1765 2007-08-29 Frédéric Bernon
1766 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1767 Add lwip_init function to regroup all modules initializations, and to provide
1768 a place to add code for task #7142 "Sanity check user-configurable values".
1769 Ports maintainers should remove direct initializations calls from their code,
1770 and add init.c in their makefiles. Note that lwip_init() function is called
1771 inside tcpip_init, but can also be used by raw api users since all calls are
1772 disabled when matching options are disabled. Also note that their is new options
1773 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1775 2007-08-26 Marc Boucher
1776 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1777 since they can under certain circumstances be called with an invalid conn
1778 pointer after the connection has been closed (and conn has been freed).
1780 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1781 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1782 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1784 2007-08-22 Frédéric Bernon
1785 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1786 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1788 2007-08-22 Frédéric Bernon
1789 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1790 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1791 name is tcpip_input (we keep the name of 1.2.0 function).
1793 2007-08-17 Jared Grubb
1794 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1795 settings into new memp_std.h and optional user file lwippools.h. This adds
1796 more dynamic mempools, and allows the user to create an arbitrary number of
1797 mempools for mem_malloc.
1799 2007-08-16 Marc Boucher
1800 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1801 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1802 close the connection.
1804 2007-08-16 Marc Boucher
1805 * sockets.c: lwip_accept(): check netconn_peer() error return.
1807 2007-08-16 Marc Boucher
1808 * mem.c, mem.h: Added mem_calloc().
1810 2007-08-16 Marc Boucher
1811 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1812 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1813 and starving other message types.
1814 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1816 2007-08-16 Marc Boucher
1817 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1818 type and flgs (later renamed to flags).
1819 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1820 Improved lwip_recvfrom(). TCP push now propagated.
1822 2007-08-16 Marc Boucher
1823 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1826 2007-08-16 Marc Boucher
1827 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1828 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1829 Added PPPoE support and various PPP improvements.
1831 2007-07-25 Simon Goldschmidt
1832 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1833 making netbuf_copy_partial use this function.
1835 2007-07-25 Simon Goldschmidt
1836 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1837 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1840 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1841 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1842 a link callback in the netif struct, and functions to handle it. Be carefull
1843 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1844 if you want to be sure to be compatible with future changes...
1846 2007-06-30 Frédéric Bernon
1847 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1849 2007-06-21 Simon Goldschmidt
1850 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1851 LWIP_AUTOIP =0 and =1 to remove redundant code.
1853 2007-06-21 Simon Goldschmidt
1854 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1855 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1856 heap. This both prevents memory fragmentation and gives a higher speed
1857 at the cost of more memory consumption. Turned off by default.
1859 2007-06-21 Simon Goldschmidt
1860 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1861 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1862 int to be able to send a bigger buffer than 64K with one time (mainly
1863 used from lwip_send).
1865 2007-06-21 Simon Goldschmidt
1866 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1867 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1869 2007-06-21 Simon Goldschmidt
1870 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1871 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1872 changes on low memory or empty send-buffer.
1874 2007-06-18 Simon Goldschmidt
1875 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1876 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1877 used for ethernet and struct eth_addr already had a defined length of 6).
1879 2007-06-17 Simon Goldschmidt
1880 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1881 to disable UDP checksum generation on transmit.
1883 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1884 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1885 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1886 this macro to check "conn" parameter in api_msg.c functions.
1888 2007-06-11 Simon Goldschmidt
1889 * sockets.c, sockets.h: Added UDP lite support for sockets
1891 2007-06-10 Simon Goldschmidt
1892 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1893 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1896 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1897 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1898 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1899 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1900 (see TODO mark in the source code).
1902 2007-06-09 Simon Goldschmidt
1903 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1904 etharp_output() to match netif->output so etharp_output() can be used
1905 directly as netif->output to save one function call.
1907 2007-06-08 Simon Goldschmidt
1908 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1909 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1910 added initialization of those to ethernetif, slipif and loopif.
1912 2007-05-18 Simon Goldschmidt
1913 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1914 (defaulting to off for now) that can be set to 0 to send fragmented
1915 packets by passing PBUF_REFs down the stack.
1917 2007-05-23 Frédéric Bernon
1918 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1919 connections, such present in patch #5959.
1921 2007-05-23 Frédéric Bernon
1922 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1923 code in only one part...
1925 2007-05-18 Simon Goldschmidt
1926 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1927 elements to overflow. This is achieved by adding some bytes before and after
1928 each pool element (increasing their size, of course), filling them with a
1929 prominent value and checking them on freeing the element.
1930 Set it to 2 to also check every element in every pool each time memp_malloc()
1931 or memp_free() is called (slower but more helpful).
1933 2007-05-10 Simon Goldschmidt
1934 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1935 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1938 2007-05-11 Frédéric Bernon
1939 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1940 Include a function pointer instead of a table index in the message to reduce
1941 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1942 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1944 2007-05-10 Simon Goldschmidt
1945 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1946 \ extern "C" {' in all header files. Now you can write your application using
1947 the lwIP stack in C++ and simply #include the core files. Note I have left
1948 out the netif/ppp/*h header files for now, since I don't know which files are
1949 included by applications and which are for internal use only.
1951 2007-05-09 Simon Goldschmidt
1952 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1953 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1954 situations where some compilers might inline the copy and save a function
1955 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1957 2007-05-08 Simon Goldschmidt
1958 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1959 to be overriden in case the C-library malloc implementation is not protected
1960 against concurrent access.
1962 2007-05-04 Simon Goldschmidt (Atte Kojo)
1963 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1964 multiple packets to the same host.
1966 2007-05-04 Frédéric Bernon, Jonathan Larmour
1967 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1968 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1969 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1970 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1971 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1972 these fields are now renamed "addr" & "port".
1974 2007-04-11 Jonathan Larmour
1975 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1976 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1977 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1978 by the port in sys_arch.h if desired.
1980 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1981 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1982 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1983 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1985 2007-04-05 Frédéric Bernon
1986 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1988 2007-04-04 Simon Goldschmidt
1989 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1990 use this for and architecture-independent form to tell the compiler you intentionally
1991 are not using this variable. Can be overriden in cc.h.
1993 2007-03-28 Frédéric Bernon
1994 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1995 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1996 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1997 It will be used by DHCP to register a client hostname, but can also be use when you call
2000 2007-03-28 Frédéric Bernon
2001 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2002 initialize a network interface's flag with. It tell this interface is an ethernet
2003 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2004 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2006 2007-03-26 Frédéric Bernon, Jonathan Larmour
2007 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2008 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2009 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2010 is done in tcpip_init function.
2012 2007-03-22 Frédéric Bernon
2013 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2014 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2015 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2016 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2017 but never used. Fix msg_in.c with the correct #if test for a stat display.
2019 2007-03-21 Kieran Mansley
2020 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2021 Provides callback on netif up/down state change.
2023 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2024 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2025 ip.c, netif.h, tcpip.c, opt.h:
2026 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2027 filter per all network interfaces. Declare a new function in netif to enable to
2028 control the MAC filter (to reduce lwIP traffic processing).
2030 2007-03-11 Frédéric Bernon
2031 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2032 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2033 unless you know what you're doing (default are RFC1122 compliant). Note
2034 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2036 2007-03-08 Frédéric Bernon
2037 * tcp.h: Keepalive values can be configured at compile time, but don't change
2038 this unless you know what you're doing (default are RFC1122 compliant).
2040 2007-03-08 Frédéric Bernon
2041 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2042 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2043 on UDP sockets/netconn.
2045 2007-03-08 Simon Goldschmidt
2046 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2048 2007-03-06 Frédéric Bernon
2049 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2050 Implement SO_RCVTIMEO on UDP sockets/netconn.
2052 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2053 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2054 on the stack and remove the API msg type from memp
2056 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2057 * sockets.h, sockets.c: Move socket initialization to new
2058 lwip_socket_init() function.
2059 NOTE: this changes the API with ports. Ports will have to be
2060 updated to call lwip_socket_init() now.
2062 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2063 * api_lib.c: Use memcpy in netbuf_copy_partial.
2068 2008-03-17 Frédéric Bernon, Ed Kerekes
2069 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2070 some problems to fill the IP header on some targets, use now the
2071 ip.h macros to do it).
2073 2008-03-13 Frédéric Bernon
2074 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2075 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2076 TCP connection caused a crash. Note that using (lwip_)recvfrom
2077 like this is a bit slow and that using (lwip)getpeername is the
2078 good lwip way to do it (so, using recv is faster on tcp sockets).
2080 2008-03-12 Frédéric Bernon, Jonathan Larmour
2081 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2082 recv_raw() does not consume data", and the ping sample (with
2083 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2084 returned the IP payload, without the IP header).
2086 2008-03-04 Jonathan Larmour
2087 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2088 and/or warnings on some systems where mem_size_t and size_t differ.
2089 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2091 2008-03-04 Kieran Mansley (contributions by others)
2092 * Numerous small compiler error/warning fixes from contributions to
2093 mailing list after 1.3.0 release candidate made.
2095 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2096 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2098 2008-01-15 Kieran Mansley
2099 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2100 prevented from sending by a small send window, not just a zero
2103 2008-01-09 Jonathan Larmour
2104 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2105 conflict with Linux system headers.
2107 2008-01-06 Jonathan Larmour
2108 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2109 address entirely on receiving a DHCPNAK, and restarting discovery.
2111 2007-12-21 Simon Goldschmidt
2112 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2113 is not protected" by using new macros for interlocked access to modify/test
2114 netconn->recv_avail.
2116 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2117 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2119 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2120 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2121 of silly window avoidance and prevent lwIP from shrinking the window)
2123 2007-12-04 Simon Goldschmidt
2124 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2125 data packet was lost): add assert that all segment lists are empty in
2126 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2127 state from LAST_ACK in tcp_process
2129 2007-12-02 Simon Goldschmidt
2130 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2131 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2132 has to be set to 0 in lwipopts.h
2134 2007-12-02 Simon Goldschmidt
2135 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2136 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2137 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2138 This is a fix for thread-safety and allocates all items needed for a netconn
2139 when the netconn is created.
2141 2007-11-30 Simon Goldschmidt
2142 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2143 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2144 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2145 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2147 2007-11-27 Simon Goldschmidt
2148 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2149 letting ip_route only use netifs that are up.
2151 2007-11-27 Simon Goldschmidt
2152 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2153 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2154 sockets block most operations once they have seen a fatal error.
2156 2007-11-27 Simon Goldschmidt
2157 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2158 netif to send as an argument (to be able to send on netifs that are down).
2160 2007-11-26 Simon Goldschmidt
2161 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2164 2007-11-21 Simon Goldschmidt
2165 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2166 Fixed the nagle algorithm; nagle now also works for all raw API applications
2167 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2169 2007-11-12 Frédéric Bernon
2170 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2171 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2172 context in do_getaddr.
2174 2007-11-10 Simon Goldschmidt
2175 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2176 happen any time). Now the packet simply isn't enqueued when out of memory.
2178 2007-11-01 Simon Goldschmidt
2179 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2180 TCP_MSS if that is smaller) as long as no MSS option is received from the
2183 2007-11-01 Simon Goldschmidt
2184 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2185 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2186 sending our configured TCP_MSS instead of the one received).
2188 2007-11-01 Simon Goldschmidt
2189 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2190 calculated based on the configured TCP_MSS, not on the MSS option received
2193 2007-10-09 Simon Goldschmidt
2194 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2195 short and also was generated wrong if checksum coverage != tot_len;
2196 receive: checksum was calculated wrong if checksum coverage != tot_len
2198 2007-10-08 Simon Goldschmidt
2199 * mem.c: lfree was not updated in mem_realloc!
2201 2007-10-07 Frédéric Bernon
2202 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2203 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2204 this change cause an API breakage for netconn_addr, since a parameter
2205 type change. Any compiler should cause an error without any changes in
2206 yours netconn_peer calls (so, it can't be a "silent change"). It also
2207 reduce a little bit the footprint for socket layer (lwip_getpeername &
2208 lwip_getsockname use now a common lwip_getaddrname function since
2209 netconn_peer & netconn_addr have the same parameters).
2211 2007-09-20 Simon Goldschmidt
2212 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2213 by checking tcp_tw_pcbs also
2215 2007-09-19 Simon Goldschmidt
2216 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2218 2007-09-15 Mike Kleshov
2219 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2221 2007-09-06 Frédéric Bernon
2222 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2223 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2224 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2225 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2227 2007-08-30 Frédéric Bernon
2228 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2229 and fix some coding style.
2231 2007-08-28 Frédéric Bernon
2232 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2233 kind of packets. These packets are considered like Ethernet packets (payload
2234 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2235 are considered like IP packets (payload pointing to iphdr).
2237 2007-08-27 Frédéric Bernon
2238 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2239 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2240 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2242 2007-08-24 Kieran Mansley
2243 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2244 compiler (Paradigm C++)
2246 2007-08-09 Frédéric Bernon, Bill Florac
2247 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2248 Introduce IGMP_STATS to centralize statistics management.
2250 2007-08-09 Frédéric Bernon, Bill Florac
2251 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2252 packet on a udp pcb binded on an netif's IP address, and not on "any".
2254 2007-08-09 Frédéric Bernon, Bill Florac
2255 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2256 This is mainly on using lookup/lookfor, and some coding styles...
2258 2007-07-26 Frédéric Bernon (and "thedoctor")
2259 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2261 2007-07-25 Simon Goldschmidt
2262 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2263 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2264 (tcp_output is called again later from tcp timers).
2266 2007-07-25 Simon Goldschmidt
2267 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2268 copy_from_pbuf, which illegally modified the given pbuf.
2270 2007-07-25 Simon Goldschmidt
2271 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2272 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2274 2007-07-24 Simon Goldschmidt
2275 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2276 correct state (must be CLOSED).
2278 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2279 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2280 allocation. It now returns NULL.
2282 2007-07-13 Frédéric Bernon
2283 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2286 2007-07-13 Frédéric Bernon
2287 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2288 because current code doesn't follow rawapi.txt documentation.
2290 2007-07-13 Kieran Mansley
2291 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2292 out of sequence processing of received packets
2294 2007-07-03 Simon Goldschmidt
2295 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2296 assumption is made that this pbuf is in one piece (i.e. not chained). These
2297 assumptions clash with the possibility of converting to fully pool-based
2298 pbuf implementations, where PBUF_RAM pbufs might be chained.
2300 2007-07-03 Simon Goldschmidt
2301 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2302 when closing tcp netconns: removed conn->sem, less context switches when
2303 closing, both netconn_close and netconn_delete should safely close tcp
2306 2007-07-02 Simon Goldschmidt
2307 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2308 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2309 to cache ARP table indices with each pcb instead of single-entry cache for
2312 2007-07-02 Simon Goldschmidt
2313 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2314 warnings when assigning to smaller types.
2316 2007-06-28 Simon Goldschmidt
2317 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2319 2007-06-28 Simon Goldschmidt
2320 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2321 a segment contained chained pbufs)
2323 2007-06-28 Frédéric Bernon
2324 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2325 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2326 possible to define this macro in your own lwipopts.h to always use C library's
2327 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2329 2007-06-28 Frédéric Bernon
2330 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2331 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2332 in api_lib/api_msg (use pointers and not type with table, etc...)
2334 2007-06-26 Simon Goldschmidt
2335 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2337 2007-06-25 Simon Goldschmidt
2338 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2339 for udp packets with no matching pcb.
2341 2007-06-25 Simon Goldschmidt
2342 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2343 could get udp input packets if the remote side matched.
2345 2007-06-13 Simon Goldschmidt
2346 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2347 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2349 2007-06-13 Simon Goldschmidt
2350 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2351 -> netconn_new_..() does not allocate a new connection for unsupported
2354 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2355 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2356 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2358 2007-06-13 Frédéric Bernon, Matthias Weisser
2359 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2360 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2361 some macro names collision with some OS macros.
2363 2007-06-11 Simon Goldschmidt
2364 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2365 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2366 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2369 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2370 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2371 where TCP flags wasn't initialized in tcp_keepalive.
2373 2007-06-03 Simon Goldschmidt
2374 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2375 registered, p->payload was modified without modifying p->len if sending
2376 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2378 2007-06-03 Simon Goldschmidt
2379 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2380 re-used the input pbuf even if that didn't have enough space to include the
2381 link headers. Now the space is tested and a new pbuf is allocated for the
2382 echo response packet if the echo request pbuf isn't big enough.
2384 2007-06-01 Simon Goldschmidt
2385 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2387 2007-05-23 Frédéric Bernon
2388 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2389 allocated by do_listen if success) and netconn_accept errors handling. In
2390 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2391 by ASSERT, except for netconn_delete.
2393 2007-05-23 Frédéric Bernon
2394 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2395 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2396 directly close the recvmbox).
2398 2007-05-22 Simon Goldschmidt
2399 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2400 bound but unconnected (and non-listening) tcp_pcbs.
2402 2007-05-22 Frédéric Bernon
2403 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2404 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2405 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2406 like "sys_timeout" in their application threads.
2408 2007-05-22 Frédéric Bernon
2409 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2410 which parameters are used by which do_xxx function, and to avoid "misusing"
2411 parameters (patch #5938).
2413 2007-05-22 Simon Goldschmidt
2414 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2415 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2416 is only 8 bits wide. This affects the api, as there, the protocol was
2419 2007-05-18 Simon Goldschmidt
2420 * memp.c: addition to patch #5913: smaller pointer was returned but
2421 memp_memory was the same size -> did not save memory.
2423 2007-05-16 Simon Goldschmidt
2424 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2427 2007-05-16 Simon Goldschmidt
2428 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2429 as the one of the netif used for sending to prevent sending from old
2430 addresses after a netif address gets changed (partly fixes bug #3168).
2432 2007-05-16 Frédéric Bernon
2433 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2434 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2435 tcpip_init) because we have to be sure that network interfaces are already
2436 added (mac filter is updated only in igmp_init for the moment).
2438 2007-05-16 Simon Goldschmidt
2439 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2440 into sys_arch_sem_wait calls to prevent timers from running while waiting
2441 for the heap. This fixes bug #19167.
2443 2007-05-13 Simon Goldschmidt
2444 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2445 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2448 2007-05-07 Simon Goldschmidt
2449 * mem.c: Another attempt to fix bug #17922.
2451 2007-05-04 Simon Goldschmidt
2452 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2453 implementation so that it can be reused (don't allocate the target
2454 pbuf inside pbuf_copy()).
2456 2007-05-04 Simon Goldschmidt
2457 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2458 to save a little RAM (next pointer of memp is not used while not in pool).
2461 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2464 2007-04-23 Simon Goldschmidt
2465 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2466 in NULL reference for incoming TCP packets". Loopif has to be configured
2467 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2468 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2469 putting packets on a list that is fed to the stack by calling loopif_poll()
2470 (single-thread / NO_SYS / polling environment where e.g.
2471 netif->input() = ip_input).
2473 2007-04-17 Jonathan Larmour
2474 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2475 the difference between two u16_t's.
2476 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2477 MEMP_NUM_NETCONN in sockets.c right now.
2479 2007-04-12 Jonathan Larmour
2480 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2482 2007-04-12 Kieran Mansley
2483 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2484 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2486 2007-04-11 Simon Goldschmidt
2487 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2488 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2489 pbuf.c: removed functions no needed any more (by etharp).
2491 2007-04-11 Kieran Mansley
2492 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2493 "Constant is long" warnings with 16bit compilers. Contributed by
2494 avatar@mmlab.cse.yzu.edu.tw
2496 2007-04-05 Frédéric Bernon, Jonathan Larmour
2497 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2498 the mailbox is active". Now, the post is only done during a connect, and do_send,
2499 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2501 2007-04-03 Frédéric Bernon
2502 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2503 packets. See patch #5834.
2505 2007-03-30 Frédéric Bernon
2506 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2507 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2509 2007-03-30 Frédéric Bernon
2510 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2511 others environment defines (these were too "generic").
2513 2007-03-28 Frédéric Bernon
2514 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2515 result and can cause a crash. lwip_send now check netbuf_ref result.
2517 2007-03-28 Simon Goldschmidt
2518 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2519 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2520 defined. This is the way it should have been already (looking at
2523 2007-03-28 Kieran Mansley
2524 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2525 IP and TCP headers *and* physical link headers
2527 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2528 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2529 to send some garbage. It is not a definitive solution, but the patch does solve
2530 the problem for most cases.
2532 2007-03-22 Frédéric Bernon
2533 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2535 2007-03-22 Frédéric Bernon
2536 * api_lib.c: somes resources couldn't be freed if there was errors during
2537 netconn_new_with_proto_and_callback.
2539 2007-03-22 Frédéric Bernon
2540 * ethernetif.c: update netif->input calls to check return value. In older ports,
2541 it's a good idea to upgrade them, even if before, there could be another problem
2542 (access to an uninitialized mailbox).
2544 2007-03-21 Simon Goldschmidt
2545 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2546 by casting to unsigned).
2548 2007-03-21 Frédéric Bernon
2549 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2550 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2551 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2552 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2553 faster and more reliable communication between api_lib and tcpip.
2555 2007-03-21 Frédéric Bernon
2556 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2558 2007-03-21 Frédéric Bernon
2559 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2561 2007-03-21 Kieran Mansley
2562 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2565 2007-03-21 Kieran Mansley
2566 * Fix all uses of pbuf_header to check the return value. In some
2567 cases just assert if it fails as I'm not sure how to fix them, but
2568 this is no worse than before when they would carry on regardless
2571 2007-03-21 Kieran Mansley
2572 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2573 comment out missing header include in icmp.c
2575 2007-03-20 Frédéric Bernon
2576 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2577 synchronized with memp.h.
2579 2007-03-20 Frédéric Bernon
2580 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2581 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2582 network interfaces. Also fix a compiler warning.
2584 2007-03-20 Kieran Mansley
2585 * udp.c: Only try and use pbuf_header() to make space for headers if
2586 not a ROM or REF pbuf.
2588 2007-03-19 Frédéric Bernon
2589 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2592 2007-03-19 Frédéric Bernon
2593 * Remove unimplemented "memp_realloc" function from memp.h.
2595 2007-03-11 Simon Goldschmidt
2596 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2599 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2600 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2601 (missing `const' qualifier in socket functions), to get more compatible to
2602 standard POSIX sockets.
2604 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2605 * sockets.c: Add asserts inside bind, connect and sendto to check input
2606 parameters. Remove excessive set_errno() calls after get_socket(), because
2607 errno is set inside of get_socket(). Move last sock_set_errno() inside
2610 2007-03-09 Simon Goldschmidt
2611 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2612 was allocated too small.
2614 2007-03-06 Simon Goldschmidt
2615 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2616 the stack from concurrent access.
2618 2007-03-06 Frédéric Bernon, Dmitry Potapov
2619 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2620 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2622 2007-03-06 Simon Goldschmidt
2623 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2624 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2626 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2627 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2628 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2629 Allow to do ARP processing for incoming packets inside tcpip_thread
2630 (protecting ARP layer against concurrent access). You can also disable
2631 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2632 Older ports have to use tcpip_ethinput.
2634 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2635 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2636 from pointer target type"
2638 2007-03-05 Frédéric Bernon
2639 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2640 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2642 2007-03-04 Frédéric Bernon
2643 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2646 2007-03-04 Frédéric Bernon
2647 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2649 The api_msg struct stay on the stack (not moved to netconn struct).
2651 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2652 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2653 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2654 Also fixed cast warning in pbuf_alloc()
2656 2007-03-04 Simon Goldschmidt
2657 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2658 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2660 2007-03-03 Frédéric Bernon
2661 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2662 It is static, and never used in udp.c except udp_init().
2664 2007-03-02 Simon Goldschmidt
2665 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2666 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2667 initialized before tcpip_thread is running (e.g. before OS is started)
2669 2007-03-02 Frédéric Bernon
2670 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2673 2007-02-28 Kieran Mansley
2674 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2675 outside the region of the pbuf by pbuf_header()
2677 2007-02-28 Kieran Mansley
2678 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2679 when supplied timeout is also non-zero
2683 2006-12-05 Leon Woestenberg
2684 * CHANGELOG: Mention STABLE-1.2.0 release.
2688 2006-12-01 Christiaan Simons
2689 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2690 Note this is a workaround. Currently I have no other options left.
2692 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2693 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2694 to include/lwip/opt.h.
2695 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2696 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2697 * opt.h: Add above new options.
2699 2006-08-18 Christiaan Simons
2700 * tcp_{in,out}.c: added SNMP counters.
2701 * ipv4/ip.c: added SNMP counters.
2702 * ipv4/ip_frag.c: added SNMP counters.
2704 2006-08-08 Christiaan Simons
2705 * etharp.{c,h}: added etharp_find_addr() to read
2706 (stable) ethernet/IP address pair from ARP table
2708 2006-07-14 Christiaan Simons
2709 * mib_structs.c: added
2710 * include/lwip/snmp_structs.h: added
2711 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2713 2006-07-06 Christiaan Simons
2714 * snmp/asn1_{enc,dec}.c added
2716 * snmp/msg_{in,out}.c added
2717 * include/lwip/snmp_asn1.h added
2718 * include/lwip/snmp_msg.h added
2719 * doc/snmp_agent.txt added
2721 2006-03-29 Christiaan Simons
2722 * inet.c, inet.h: Added platform byteswap support.
2723 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2724 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2728 2006-11-30 Christiaan Simons
2729 * dhcp.c: Fixed false triggers of request_timeout.
2731 2006-11-28 Christiaan Simons
2732 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2734 2006-10-11 Christiaan Simons
2735 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2736 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2737 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2738 identifier from 170 to 136 (bug #17574).
2740 2006-10-10 Christiaan Simons
2741 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2743 2006-08-17 Christiaan Simons
2744 * udp.c: Fixed bug #17200, added check for broadcast
2745 destinations for PCBs bound to a unicast address.
2747 2006-08-07 Christiaan Simons
2748 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2750 2006-06-27 Christiaan Simons
2751 * api_msg.c: Applied patch for cold case (bug #11135).
2752 In accept_function() ensure newconn->callback is always initialized.
2754 2006-06-15 Christiaan Simons
2755 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2756 facilitate printing of mem_size_t and u16_t statistics.
2758 2006-06-14 Christiaan Simons
2759 * api_msg.c: Applied patch #5146 to handle allocation failures
2760 in accept() by Kevin Lawson.
2762 2006-05-26 Christiaan Simons
2763 * api_lib.c: Removed conn->sem creation and destruction
2764 from netconn_write() and added sys_sem_new to netconn_new_*.
2768 2006-03-03 Christiaan Simons
2769 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2770 access and added pbuf_alloc() return value checks.
2772 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2773 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2774 now handled by the checksum routine properly.
2776 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2777 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2778 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2780 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2781 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2782 submitted by Mitrani Hiroshi.
2784 2005-12-15 Christiaan Simons
2785 * inet.c: Disabled the added summing routine to preserve code space.
2787 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2788 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2789 Added Curt McDowell's optimized checksumming routine for future
2790 inclusion. Need to create test case for unaliged, aligned, odd,
2791 even length combination of cases on various endianess machines.
2793 2005-12-09 Christiaan Simons
2794 * inet.c: Rewrote standard checksum routine in proper portable C.
2796 2005-11-25 Christiaan Simons
2797 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2798 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2799 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2801 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2802 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2803 routine by Peter Jolasson.
2804 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2806 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2807 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2808 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2810 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2811 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2813 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2814 * udp.c: UDP pcb->recv() was called even when it was NULL.
2818 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2819 * etharp.*: Disabled multiple packets on the ARP queue.
2820 This clashes with TCP queueing.
2822 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2823 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2824 Halved the ARP period, doubled the period counts.
2825 ETHARP_MAX_PENDING now should be at least 2. This prevents
2826 the counter from reaching 0 right away (which would allow
2827 too little time for ARP responses to be received).
2829 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2830 * dhcp.c: Decline messages were not multicast but unicast.
2831 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2832 Do not try hard to insert arbitrary packet's source address,
2833 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2834 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2835 querying an address will see it appear in the cache (DHCP could
2836 suffer from this when a server invalidly gave an in-use address.)
2837 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2838 comparing network addresses (identifiers), not the network masks
2840 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2841 IP address actually belongs to the network of the given interface.
2843 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2844 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2848 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2849 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2850 even if one is already pending, if the rcv_wnd is above a threshold
2851 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2852 delayed ACK in order to open the window if the stack is only receiving data.
2854 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2855 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2857 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2858 * etharp.c: Make sure the first pbuf queued on an ARP entry
2859 is properly ref counted.
2861 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2862 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2863 warnings about comparison.
2864 * pbuf.c: Stopped compiler complaining of empty if statement
2865 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2866 * tcp.c: Stopped compiler complaining of empty if statement
2867 when LWIP_DEBUGF() empty.
2868 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2869 * inet.c: Added a couple of casts to quiet the compiler.
2870 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2872 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2873 * inet.c: Made data types consistent in inet_ntoa().
2874 Added casts for return values of checksum routines, to pacify compiler.
2875 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2876 Small corrections to some debugging statements, to pacify compiler.
2878 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2879 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2880 * ethernetif.c Updated low_level_output() to match prototype for
2881 netif->linkoutput and changed low_level_input() similarly for consistency.
2882 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2883 of raw_recv() in raw.h and so avoid compiler error.
2884 * sockets.c: Added trivial (int) cast to keep compiler happier.
2885 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2891 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2892 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2893 your cc.h file defines this either 1 or 0. If non-defined,
2895 * .c: Added <string.h> and <errno.h> includes where used.
2896 * etharp.c: Made some array indices unsigned.
2898 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2899 * netif.*: Added netif_set_up()/down().
2900 * dhcp.c: Changes to restart program flow.
2902 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2903 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2904 single-pass lookup for different candidates. Should exploit locality.
2906 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2907 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2908 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2909 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2910 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2914 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2915 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2916 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2917 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2918 is to prefix the 14-bit Ethernet headers with two padding bytes.
2920 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2921 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2922 * etharp.c: Fixed the case where the packet that initiates the ARP request
2923 is not queued, and gets lost. Fixed the case where the packets destination
2924 address is already known; we now always queue the packet and perform an ARP
2931 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2932 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2933 * Fixed two possible NULL references in rare cases.
2939 * Fixed DHCP which did not include the IP address in DECLINE messages.
2943 * etharp.c has been hauled over a bit.
2949 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2950 * Packets sent from ARP queue had invalid source hardware address.
2954 * Pass-by ARP requests do now update the cache.
2958 * No longer dependent on ctype.h.
2959 * New socket options.
2960 * Raw IP pcb support.
2966 * Some debug formatters and casts fixed.
2967 * Numereous fixes in PPP.
2971 * DEBUGF now is LWIP_DEBUGF
2972 * pbuf_dechain() has been re-enabled.
2973 * Mentioned the changed use of CVS branches in README.
2979 * Fixed pool pbuf memory leak in pbuf_alloc().
2980 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2981 Reported by Savin Zlobec.
2983 * PBUF_POOL chains had their tot_len field not set for non-first
2984 pbufs. Fixed in pbuf_alloc().
2988 * Added PPP stack contributed by Marc Boucher
2992 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2994 * ARP queueuing now queues the latest packet instead of the first.
2995 This is the RFC recommended behaviour, but can be overridden in
3002 * TCP has been fixed to deal with the new use of the pbuf->ref
3005 * DHCP dhcp_inform() crash bug fixed.
3009 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3010 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3011 Implemented by David Haas.
3017 * The packet buffer implementation has been enhanced to support
3018 zero-copy and copy-on-demand for packet buffers which have their
3019 payloads in application-managed memory.
3020 Implemented by David Haas.
3022 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3023 if an outgoing packet can be directly sent on the link, or perform
3024 a copy-on-demand when necessary.
3026 The application can safely assume the packet is sent, and the RAM
3027 is available to the application directly after calling udp_send()
3028 or similar function.
3032 * ARP_QUEUEING should now correctly work for all cases, including
3034 Implemented by Leon Woestenberg.
3038 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3039 to a '0.0.0.0' IP address.
3041 * The packet buffer implementation is changed. The pbuf->ref counter
3042 meaning has changed, and several pbuf functions have been
3043 adapted accordingly.
3045 * netif drivers have to be changed to set the hardware address length field
3046 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3047 See the contrib/ports/c16x cs8900 driver as a driver example.
3049 * netif's have a dhcp field that must be initialized to NULL by the driver.
3050 See the contrib/ports/c16x cs8900 driver as a driver example.
3052 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3053 logged in CVS but have not been explained here.
3055 (0.5.3) Changes since version 0.5.2
3059 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3060 threads because it wasn't protected by semaphores.
3064 * struct ip_addr now packed.
3066 * The name of the time variable in arp.c has been changed to ctime
3067 to avoid conflicts with the time() function.
3069 (0.5.2) Changes since version 0.5.1
3073 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3077 * A bug in tcp_parseopt() could cause the stack to hang because of a
3078 malformed TCP option.
3080 * The address of new connections in the accept() function in the BSD
3081 socket library was not handled correctly.
3083 * pbuf_dechain() did not update the ->tot_len field of the tail.
3085 * Aborted TCP connections were not handled correctly in all
3090 * All protocol header structs are now packed.
3092 * The ->len field in the tcp_seg structure now counts the actual
3093 amount of data, and does not add one for SYN and FIN segments.
3095 (0.5.1) Changes since version 0.5.0
3099 * Possible to run as a user process under Linux.
3101 * Preliminary support for cross platform packed structs.
3103 * ARP timer now implemented.
3107 * TCP output queue length was badly initialized when opening
3110 * TCP delayed ACKs were not sent correctly.
3112 * Explicit initialization of BSS segment variables.
3114 * read() in BSD socket library could drop data.
3116 * Problems with memory alignment.
3118 * Situations when all TCP buffers were used could lead to
3121 * TCP MSS option wasn't parsed correctly.
3123 * Problems with UDP checksum calculation.
3125 * IP multicast address tests had endianess problems.
3127 * ARP requests had wrong destination hardware address.
3131 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3133 * A ->linkoutput() member was added to struct netif.
3135 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3137 * ntoh* macros are now null definitions for big endian CPUs.
3139 (0.5.0) Changes since version 0.4.2
3143 * Redesigned operating system emulation layer to make porting easier.
3145 * Better control over TCP output buffers.
3147 * Documenation added.
3151 * Locking issues in buffer management.
3153 * Bugfixes in the sequential API.
3155 * IP forwarding could cause memory leakage. This has been fixed.
3159 * Directory structure somewhat changed; the core/ tree has been
3162 (0.4.2) Changes since version 0.4.1
3166 * Experimental ARP implementation added.
3168 * Skeleton Ethernet driver added.
3170 * Experimental BSD socket API library added.
3174 * In very intense situations, memory leakage could occur. This has
3179 * Variables named "data" and "code" have been renamed in order to
3180 avoid name conflicts in certain compilers.
3182 * Variable++ have in appliciable cases been translated to ++variable
3183 since some compilers generate better code in the latter case.
3185 (0.4.1) Changes since version 0.4
3189 * TCP: Connection attempts time out earlier than data
3190 transmissions. Nagle algorithm implemented. Push flag set on the
3191 last segment in a burst.
3193 * UDP: experimental support for UDP-Lite extensions.
3197 * TCP: out of order segments were in some cases handled incorrectly,
3198 and this has now been fixed. Delayed acknowledgements was broken
3199 in 0.4, has now been fixed. Binding to an address that is in use
3200 now results in an error. Reset connections sometimes hung an
3201 application; this has been fixed.
3203 * Checksum calculation sometimes failed for chained pbufs with odd
3204 lengths. This has been fixed.
3206 * API: a lot of bug fixes in the API. The UDP API has been improved
3207 and tested. Error reporting and handling has been
3208 improved. Logical flaws and race conditions for incoming TCP
3209 connections has been found and removed.
3211 * Memory manager: alignment issues. Reallocating memory sometimes
3212 failed, this has been fixed.
3214 * Generic library: bcopy was flawed and has been fixed.
3218 * API: all datatypes has been changed from generic ones such as
3219 ints, to specified ones such as u16_t. Functions that return
3220 errors now have the correct type (err_t).
3222 * General: A lot of code cleaned up and debugging code removed. Many
3223 portability issues have been fixed.
3225 * The license was changed; the advertising clause was removed.
3229 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3230 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3233 (0.4) Changes since version 0.3.1
3235 * Memory management has been radically changed; instead of
3236 allocating memory from a shared heap, memory for objects that are
3237 rapidly allocated and deallocated is now kept in pools. Allocation
3238 and deallocation from those memory pools is very fast. The shared
3239 heap is still present but is used less frequently.
3241 * The memory, memory pool, and packet buffer subsystems now support
3242 4-, 2-, or 1-byte alignment.
3244 * "Out of memory" situations are handled in a more robust way.
3246 * Stack usage has been reduced.
3248 * Easier configuration of lwIP parameters such as memory usage,
3249 TTLs, statistics gathering, etc. All configuration parameters are
3250 now kept in a single header file "lwipopts.h".
3252 * The directory structure has been changed slightly so that all
3253 architecture specific files are kept under the src/arch
3256 * Error propagation has been improved, both in the protocol modules
3259 * The code for the RTXC architecture has been implemented, tested
3262 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3263 the Internet checksum modules.
3265 * Bugs related to porting between a 32-bit and a 16-bit architecture
3266 have been found and corrected.
3268 * The license has been changed slightly to conform more with the
3269 original BSD license, including the advertisement clause.
3271 (0.3.1) Changes since version 0.3
3273 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3274 RAM never returned the RAM when the pbuf was deallocated.
3276 * TCP congestion control, window updates and retransmissions did not
3277 work correctly. This has now been fixed.
3279 * Bugfixes in the API.
3281 (0.3) Changes since version 0.2
3283 * New and improved directory structure. All include files are now
3284 kept in a dedicated include/ directory.
3286 * The API now has proper error handling. A new function,
3287 netconn_err(), now returns an error code for the connection in
3290 * Improvements in the memory management subsystem. The system now
3291 keeps a pointer to the lowest free memory block. A new function,
3292 mem_malloc2() tries to allocate memory once, and if it fails tries
3293 to free some memory and retry the allocation.
3295 * Much testing has been done with limited memory
3296 configurations. lwIP now does a better job when overloaded.
3298 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3300 * Many bugfixes in the TCP code:
3302 - Fixed a bug in tcp_close().
3304 - The TCP receive window was incorrectly closed when out of
3305 sequence segments was received. This has been fixed.
3307 - Connections are now timed-out of the FIN-WAIT-2 state.
3309 - The initial congestion window could in some cases be too
3310 large. This has been fixed.
3312 - The retransmission queue could in some cases be screwed up. This
3315 - TCP RST flag now handled correctly.
3317 - Out of sequence data was in some cases never delivered to the
3318 application. This has been fixed.
3320 - Retransmitted segments now contain the correct acknowledgment
3321 number and advertised window.
3323 - TCP retransmission timeout backoffs are not correctly computed
3324 (ala BSD). After a number of retransmissions, TCP now gives up
3327 * TCP connections now are kept on three lists, one for active
3328 connections, one for listening connections, and one for
3329 connections that are in TIME-WAIT. This greatly speeds up the fast
3330 timeout processing for sending delayed ACKs.
3332 * TCP now provides proper feedback to the application when a
3333 connection has been successfully set up.
3335 * More comments have been added to the code. The code has also been
3336 somewhat cleaned up.
3338 (0.2) Initial public release.