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 2012-05-03: Simon Goldschmidt (patch by )
84 * ppp.c: fixed bug #36283 (PPP struct used on header size computation and
87 2012-05-03: Simon Goldschmidt (patch by David Empson)
88 * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with
91 2012-03-27: Simon Goldschmidt
92 * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
94 2012-03-27: Simon Goldschmidt (patch by Mason)
95 * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
98 2012-03-25: Simon Goldschmidt
99 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
100 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
102 2012-03-25: Simon Goldschmidt
103 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
104 pollution in api_msg.c and netifapi.c
106 2012-03-22: Simon Goldschmidt
107 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
109 2012-03-20: Simon Goldschmidt (patch by Mason)
110 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
112 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
113 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
114 possible bug on little endian system
116 2012-02-23: Simon Goldschmidt
117 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
118 (introduced when fixing bug# 33551)
120 2012-02-16: Simon Goldschmidt
121 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
122 (bug #35541: PPP Memory Leak)
124 2012-02-16: Simon Goldschmidt
125 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
126 (introduced when fixing bug# 33551)
128 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
129 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
131 2012-02-15: Simon Goldschmidt
132 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
135 2012-02-12: Simon Goldschmidt
136 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
137 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
139 2012-02-11: Simon Goldschmidt
140 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
143 2012-01-22: Simon Goldschmidt
144 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
146 2012-01-21: Simon Goldschmidt
147 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
149 2012-01-20: Simon Goldschmidt
150 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
152 2012-01-20: Simon Goldschmidt
153 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
155 2011-11-25: Simon Goldschmidt
156 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
157 tcp_active_pcbs in some cases
159 2011-11-23: Simon Goldschmidt
160 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
163 2011-11-22: Simon Goldschmidt
164 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
165 netif is brought down
167 2011-10-28: Simon Goldschmidt
168 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
170 2011-10-23: Simon Goldschmidt
171 * mem.c: fixed bug #34429: possible memory corruption with
172 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
174 2011-10-18: Simon Goldschmidt
175 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
178 2011-10-18: Simon Goldschmidt
179 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
180 windows (bug #34176 select after non-blocking send times out)
182 2011-10-18: Simon Goldschmidt
183 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
184 consider netif->mtu, causes slow network
186 2011-10-18: Simon Goldschmidt
187 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
189 2011-10-18: Simon Goldschmidt
190 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
192 2011-10-17: Simon Goldschmidt
193 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
195 2011-10-13: Simon Goldschmidt
196 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
197 zero window is received) by starting the persist timer when a zero window is
198 received, not when we have more data queued for sending than fits into the
201 2011-10-13: Simon Goldschmidt
202 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
204 2011-10-13: Simon Goldschmidt
205 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
206 used and not all protocols are enabled
208 2011-10-12: Simon Goldschmidt
209 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
211 2011-10-09: Simon Goldschmidt
212 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
213 byte value when pcb->unacked != NULL
215 2011-10-09: Simon Goldschmidt
216 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
218 2011-09-27: Simon Goldschmidt
219 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
221 2011-09-27: Simon Goldschmidt
222 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
224 2011-09-27: Simon Goldschmidt
225 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
227 2011-09-24: Simon Goldschmidt
228 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
230 2011-09-23: Simon Goldschmidt
231 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
232 the last packet including FIN can lose data
234 2011-09-22: Simon Goldschmidt
235 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
238 2011-09-21: Simon Goldschmidt
239 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
242 2011-09-20: Simon Goldschmidt
243 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
245 2011-09-11: Simon Goldschmidt
246 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
249 2011-09-09: Simon Goldschmidt
250 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
253 2011-09-03: Simon Goldschmidt
254 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
255 is aggregated and sent to application
257 2011-09-01: Simon Goldschmidt
258 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
261 2011-09-01: Simon Goldschmidt
262 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
264 2011-08-24: Simon Goldschmidt
265 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
267 2011-08-24: Simon Goldschmidt
268 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
269 accept() on UDP connections
271 2011-08-24: Simon Goldschmidt
272 * sockets.h: fixed bug #34057 socklen_t should be a typedef
274 2011-08-24: Simon Goldschmidt
275 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
277 2011-08-24: Simon Goldschmidt
278 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
280 2011-08-24: Simon Goldschmidt
281 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
283 2011-08-22: Simon Goldschmidt
284 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
285 merely prevents nagle from not transmitting fast after closing.)
287 2011-07-22: Simon Goldschmidt
288 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
289 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
290 lwip_send() sends as much as possible for non-blocking sockets
292 2011-07-22: Simon Goldschmidt
293 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
294 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
295 at regular intervals from main level.
297 2011-07-21: Simon Goldschmidt
298 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
299 sending an ARP request when an ARP entry is used in the last minute before
302 2011-07-04: Simon Goldschmidt
303 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
305 2011-06-26: Simon Goldschmidt
306 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
307 updating its documentation only.
309 2011-06-26: Simon Goldschmidt
310 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
313 2011-06-26: Simon Goldschmidt
314 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
322 2011-03-27: Simon Goldschmidt
323 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
324 calculate it in tcp_zero_window_probe (the only place where it was used).
326 2010-11-21: Simon Goldschmidt
327 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
330 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
331 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
332 IP_MULTICAST_LOOP at socket- and raw-API level.
334 2010-06-16: Simon Goldschmidt
335 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
336 link-layer-addressed UDP traffic to be received while a netif is down (just
337 like DHCP during configuration)
339 2010-05-22: Simon Goldschmidt
340 * many many files: bug #27352: removed packing from ip_addr_t, the packed
341 version is now only used in protocol headers. Added global storage for
342 current src/dest IP address while in input functions.
344 2010-05-16: Simon Goldschmidt
345 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
346 calculation (and use them throughout the stack where applicable)
348 2010-05-16: Simon Goldschmidt
349 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
350 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
352 2010-05-16: Simon Goldschmidt
353 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
354 MEMP pool instead of the heap
356 2010-05-13: Simon Goldschmidt
357 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
358 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
359 packets to more than one pcb.
361 2010-05-02: Simon Goldschmidt
362 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
363 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
365 2010-04-30: Simon Goldschmidt
366 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
367 take a precalculated checksum, added pbuf_fill_chksum() to copy data
368 into a pbuf and at the same time calculating the checksum for that data
370 2010-04-29: Simon Goldschmidt
371 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
372 2-byte-aligned IP addresses and MAC addresses
374 2010-04-28: Patch by Bill Auerbach
375 * ip.c: Inline generating IP checksum to save a function call
377 2010-04-14: Simon Goldschmidt
378 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
379 tcpip_thread processes messages or timeouts to implement a watchdog.
381 2010-03-28: Simon Goldschmidt
382 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
383 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
385 2010-03-27: Simon Goldschmidt
386 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
387 etharp_query to prevent unnecessary function calls (inspired by
390 2010-03-20: Simon Goldschmidt
391 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
392 since the linker cannot do this automatically to save space.
394 2010-03-20: Simon Goldschmidt
395 * opt.h, etharp.c/.h: Added support for static ARP table entries
397 2010-03-14: Simon Goldschmidt
398 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
399 when creating TCP segments, not when (re-)transmitting them.
401 2010-03-07: Simon Goldschmidt
402 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
403 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
404 This should speed up receiving data on sockets as the select code in
405 event_callback is only executed when select is waiting.
407 2010-03-06: Simon Goldschmidt
408 * tcp_out.c: task #7013 (Create option to have all packets delivered to
409 netif->output in one piece): Always copy to try to create single pbufs
412 2010-03-06: Simon Goldschmidt
413 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
414 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
415 for tcp netconns to receive pbufs, not netbufs; use that function
418 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
419 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
420 Work on tcp_enqueue: Don't waste memory when chaining segments,
421 added option TCP_OVERSIZE to prevent creating many small pbufs when
422 calling tcp_write with many small blocks of data. Instead, pbufs are
423 allocated larger than needed and the space is used for later calls to
426 2010-02-21: Simon Goldschmidt
427 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
430 2010-02-21: Simon Goldschmidt
431 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
432 implementation of tcp to make API usage cleare to application programmers
434 2010-02-14: Simon Goldschmidt/Stephane Lesage
435 * ip_addr.h: Improved some defines working on ip addresses, added faster
436 macro to copy addresses that cannot be NULL
438 2010-02-13: Simon Goldschmidt
439 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
440 blocking send operation)
442 2010-02-12: Simon Goldschmidt
443 * sockets.c/.h: Added a minimal version of posix fctl() to have a
444 standardised way to set O_NONBLOCK for nonblocking sockets.
446 2010-02-12: Simon Goldschmidt
447 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
448 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
449 and dhcp work with user-allocated structs instead of callin mem_malloc
451 2010-02-12: Simon Goldschmidt/Jeff Barber
452 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
453 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
455 2010-02-12: Simon Goldschmidt
456 * sys layer: task #10139 (Prefer statically allocated memory): converted
457 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
458 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
459 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
460 to let sys.h use binary semaphores instead of mutexes - as before)
462 2010-02-09: Simon Goldschmidt (Simon Kallweit)
463 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
464 (Restart system timeout handling)
466 2010-02-09: Simon Goldschmidt
467 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
468 netif.c) - loopif does not have to be created by the port any more,
469 just define LWIP_HAVE_LOOPIF to 1.
471 2010-02-08: Simon Goldschmidt
472 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
473 inet_ntoa_r/ipaddr_ntoa_r
475 2010-02-08: Simon Goldschmidt
476 * netif.h: Added netif_s/get_igmp_mac_filter() macros
478 2010-02-05: Simon Goldschmidt
479 * netif.h: Added function-like macros to get/set the hostname on a netif
481 2010-02-04: Simon Goldschmidt
482 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
483 make changing the actual implementation behind the typedef easier.
485 2010-02-01: Simon Goldschmidt
486 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
487 for allocating memory when getaddrinfo() is called.
489 2010-01-31: Simon Goldschmidt
490 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
491 them once instead of parsing for every option. This also removes
492 the need for mem_malloc from dhcp_recv and makes it possible to
493 correctly retrieve the BOOTP file.
495 2010-01-30: simon Goldschmidt
496 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
499 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
500 * api.h, api_msg.c, sockets.c: Added except set support in select
503 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
504 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
505 Add non-blocking support for connect (partly from patch #6860),
506 plus many cleanups in socket & netconn API.
508 2010-01-27: Simon Goldschmidt
509 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
510 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
512 2010-01-26: Simon Goldschmidt
513 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
515 2010-01-14: Simon Goldschmidt
516 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
517 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
519 2010-01-13: Simon Goldschmidt
520 * mem.c: The heap now may be moved to user-defined memory by defining
521 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
522 (patch #6966 and bug #26133)
524 2010-01-10: Simon Goldschmidt (Bill Auerbach)
525 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
528 2010-01-10: Simon Goldschmidt
529 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
530 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
532 2009-12-31: Simon Goldschmidt
533 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
534 added timers.c/.h: Separated timer implementation from semaphore/mbox
535 implementation, moved timer implementation to timers.c/.h, timers are
536 now only called from tcpip_thread or by explicitly checking them.
539 2009-12-27: Simon Goldschmidt
540 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
541 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
546 2011-04-20: Simon Goldschmidt
547 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
549 2011-04-13: Simon Goldschmidt
550 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
551 using ports in the IANA private/dynamic range (49152 through 65535).
553 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
554 * etharp.h/.c: Fixed broken VLAN support.
556 2011-03-27: Simon Goldschmidt
557 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
558 pcbs) by checking if the pcb was bound (local_port != 0).
560 2011-03-27: Simon Goldschmidt
561 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
563 2011-03-27: Simon Goldschmidt
564 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
565 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
567 2011-03-27: Simon Goldschmidt
568 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
569 is present never times out) by starting retransmission timer before checking
572 2011-03-22: Simon Goldschmidt
573 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
574 calling sio_read_abort() if the file descriptor is valid.
576 2011-03-14: Simon Goldschmidt
577 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
578 more than once can render a socket useless) since it mainly involves changing
579 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
581 2011-03-13: Simon Goldschmidt
582 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
583 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
584 use EALRADY instead of -1
586 2011-03-13: Simon Goldschmidt
587 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
588 connection has been aborted by err_tcp (since this is not a normal closing
591 2011-03-13: Simon Goldschmidt
592 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
593 with pcb->state != CLOSED
595 2011-02-17: Simon Goldschmidt
596 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
599 2011-02-17: Simon Goldschmidt
600 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
602 2011-01-24: Simon Goldschmidt
603 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
605 2010-12-02: Simon Goldschmidt
606 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
608 2010-11-23: Simon Goldschmidt
609 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
610 LWIP_SO_RCVBUF and ioctl/FIONREAD.
612 2010-11-23: Simon Goldschmidt
613 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
614 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
616 2010-11-23: Simon Goldschmidt
617 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
618 refusing 'refused_data' again.
620 2010-11-22: Simon Goldschmidt
621 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
622 after a successful nonblocking connection.
624 2010-11-22: Simon Goldschmidt
625 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
626 must be sent link-local
628 2010-11-22: Simon Goldschmidt
629 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
632 2010-11-20: Simon Goldschmidt
633 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
635 2010-11-20: Simon Goldschmidt
636 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
637 resemble other stacks.
639 2010-11-20: Simon Goldschmidt
640 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
641 no-copy TCP writes will never succeed.
643 2010-11-20: Simon Goldschmidt
644 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
645 not match documentation: return ERR_ARG instead of ERR_VAL if not
646 initialized or wrong argument.
648 2010-10-20: Simon Goldschmidt
649 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
651 2010-10-05: Simon Goldschmidt
652 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
653 replugging the network cable after an AutoIP address was assigned.
655 2010-08-10: Simon Goldschmidt
656 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
658 2010-08-03: Simon Goldschmidt
659 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
661 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
662 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
663 endian architectures)
665 2010-07-28: Simon Goldschmidt
666 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
669 2010-07-27: Simon Goldschmidt
670 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
671 harm but never did anything
673 2010-07-21: Simon Goldschmidt
674 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
677 2010-07-16: Kieran Mansley
678 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
680 2010-07-10: Simon Goldschmidt
681 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
683 2010-06-30: Simon Goldschmidt
684 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
687 2010-06-28: Kieran Mansley
688 * timers.c remove unportable printing of C function pointers
690 2010-06-24: Simon Goldschmidt
691 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
692 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
694 2010-06-24: Simon Goldschmidt
695 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
696 implemented shutdown at socket level.
698 2010-06-21: Simon Goldschmidt
699 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
700 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
701 custom pbufs that reference other (original) pbufs. Additionally set
702 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
704 2010-06-15: Simon Goldschmidt
705 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
707 2010-06-14: Simon Goldschmidt
708 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
710 2010-06-12: Simon Goldschmidt
711 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
714 2010-05-17: Simon Goldschmidt
715 * netdb.c: Correctly NULL-terminate h_addr_list
717 2010-05-16: Simon Goldschmidt
718 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
719 "symbol already defined" i.e. when linking to winsock
721 2010-05-05: Simon Goldschmidt
722 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
725 2010-04-21: Simon Goldschmidt
726 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
729 2010-03-28: Luca Ceresoli
730 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
732 2010-03-27: Luca Ceresoli
733 * mib2.c: patch #7130: remove meaningless const qualifiers
735 2010-03-26: Simon Goldschmidt
736 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
738 2010-03-26: Simon Goldschmidt
739 * various files: Fixed compiling with different options disabled (TCP/UDP),
740 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
742 2010-03-25: Simon Goldschmidt
743 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
745 2010-03-25: Simon Goldschmidt
746 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
747 overrunning our rcv_wnd in ooseq case.
749 2010-03-22: Simon Goldschmidt
750 * tcp.c: tcp_listen() did not copy the pcb's prio.
752 2010-03-19: Simon Goldschmidt
753 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
755 2010-03-14: Simon Goldschmidt
756 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
757 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
758 and basing PBUF_LINK_HLEN on it.
760 2010-03-08: Simon Goldschmidt
761 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
762 when assiging routable address): when checking incoming packets and
763 aborting existing connection on address change, filter out link-local
766 2010-03-06: Simon Goldschmidt
767 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
769 2010-03-06: Simon Goldschmidt
770 * ipv4/ip.c: Don't try to forward link-local addresses
772 2010-03-06: Simon Goldschmidt
773 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
776 2010-03-05: Simon Goldschmidt
777 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
780 2010-03-05: Simon Goldschmidt
781 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
782 into multiple calls to tcp_write.
784 2010-02-21: Simon Goldschmidt
785 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
786 the implementation of DNS_USES_STATIC_BUF==1)
788 2010-02-20: Simon Goldschmidt
789 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
790 close() vs. shutdown(). Now the application does not get any more
791 recv callbacks after calling tcp_close(). Added tcp_shutdown().
793 2010-02-19: Simon Goldschmidt
794 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
795 confusion with realloc()
797 2010-02-15: Simon Goldschmidt/Stephane Lesage
798 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
801 2010-02-14: Simon Goldschmidt
802 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
803 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
804 admin-status of a netif are up
806 2010-02-14: Simon Goldschmidt
807 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
808 reception and is not really necessary
810 2010-02-14: Simon Goldschmidt
811 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
812 request was directed as us (RFC 826, Packet Reception), otherwise
813 only update existing entries; internalized some functions
815 2010-02-14: Simon Goldschmidt
816 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
817 disabled on netif used for PPPoE) by adding a new netif flag
818 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
819 device but prevents usage of ARP (so that ethernet_input can be used
822 2010-02-12: Simon Goldschmidt
823 * netif.c: netif_set_link_up/down: only do something if the link state
826 2010-02-12: Simon Goldschmidt/Stephane Lesage
827 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
830 2010-02-12: Simon Goldschmidt
831 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
833 2010-02-09: Simon Goldschmidt
834 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
835 (recv() makes receive window update for data that wasn't received by
838 2010-02-09: Simon Goldschmidt/Stephane Lesage
839 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
840 or any netconn_recv() error)
842 2010-02-09: Simon Goldschmidt
843 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
845 2010-02-09: Simon Goldschmidt
846 * netif.c: For loopback packets, adjust the stats- and snmp-counters
847 for the loopback netif.
849 2010-02-08: Simon Goldschmidt
850 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
851 since they are not used anywhere else.
853 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
854 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
855 (patch from bug #28798)
857 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
858 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
859 another bug when LWIP_RAND() returns zero.
861 2010-02-04: Simon Goldschmidt
862 * nearly every file: Use macros defined in ip_addr.h (some of them new)
863 to work with IP addresses (preparation for bug #27352 - Change ip_addr
864 from struct to typedef (u32_t) - and better code).
866 2010-01-31: Simon Goldschmidt
867 * netif.c: Don't call the link-callback from netif_set_up/down() since
868 this invalidly retriggers DHCP.
870 2010-01-29: Simon Goldschmidt
871 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
872 portability file inet.h and its contents from the stack: moved htonX-
873 functions to def.h (and the new def.c - they are not ipv4 dependent),
874 let inet.h depend on ip_addr.h and not the other way round.
875 This fixes bug #28732.
877 2010-01-28: Kieran Mansley
878 * tcp.c: Ensure ssthresh >= 2*MSS
880 2010-01-27: Simon Goldschmidt
881 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
882 callback can lead to accessing unallocated memory. As a consequence,
883 ERR_ABRT means the application has called tcp_abort()!
885 2010-01-25: Simon Goldschmidt
886 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
887 not implemented in SNMP): write-only or not-accessible are still
888 returned by getnext (though not by get)
890 2010-01-24: Simon Goldschmidt
891 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
892 not use reserved C/C++ keywords
894 2010-01-23: Simon Goldschmidt
895 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
898 2010-01-21: Simon Goldschmidt
899 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
900 if tcp_enqueue fails) both in raw- and netconn-API
902 2010-01-19: Simon Goldschmidt
903 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
905 2010-01-18: Iordan Neshev/Simon Goldschmidt
906 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
907 bugfix backports from 2.4.x.
909 2010-01-18: Simon Goldschmidt
910 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
912 2010-01-17: Simon Goldschmidt
913 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
914 task #10102: "netconn: clean up conn->err threading issues" by adding
915 error return value to struct api_msg_msg
917 2010-01-17: Simon Goldschmidt
918 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
919 to return err_t (bugs #27709 and #28087)
921 2010-01-14: Simon Goldschmidt
922 * ...: Use typedef for function prototypes throughout the stack.
924 2010-01-13: Simon Goldschmidt
925 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
926 window = 0) by correctly draining recvmbox/acceptmbox
928 2010-01-11: Simon Goldschmidt
929 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
930 erroneous callbacks) by copying the code from recent pppd
932 2010-01-10: Simon Goldschmidt
933 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
935 2010-01-10: Simon Goldschmidt
936 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
938 2010-01-08: Simon Goldschmidt
939 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
941 2010-01-08: Simon Goldschmidt
942 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
943 passed to dns_local_addhost() might be volatile
945 2010-01-07: Simon Goldschmidt
946 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
948 2010-01-06: Simon Goldschmidt
949 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
951 2009-12-31: Simon Goldschmidt
952 * many ppp files: Reorganised PPP source code from ucip structure to pppd
953 structure to easily compare our code against the pppd code (around v2.3.1)
955 2009-12-27: Simon Goldschmidt
956 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
964 2009-10-27 Simon Goldschmidt/Stephan Lesage
965 * netifapi.c/.h: Added netifapi_netif_set_addr()
967 2009-10-07 Simon Goldschmidt/Fabian Koch
968 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
969 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
971 2009-08-26 Simon Goldschmidt/Simon Kallweit
972 * slipif.c/.h: bug #26397: SLIP polling support
974 2009-08-25 Simon Goldschmidt
975 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
976 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
978 2009-08-25 Simon Goldschmidt
979 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
981 2009-08-24 Jakob Stoklund Olesen
982 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
983 to netif_set_link_up().
985 2009-08-23 Simon Goldschmidt
986 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
987 to a human-readable string.
991 2009-12-24: Kieran Mansley
992 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
995 2009-12-06: Simon Goldschmidt
996 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
997 be statically allocated (like in ucip)
999 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
1000 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
1002 2009-12-03: Simon Goldschmidt
1003 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
1004 could have non-zero length
1006 2009-12-02: Simon Goldschmidt
1007 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
1008 tcp_input_pcb until after calling the pcb's callbacks
1010 2009-11-29: Simon Goldschmidt
1011 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
1012 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
1014 2009-11-29: Simon Goldschmidt
1015 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1016 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1018 2009-11-26: Simon Goldschmidt
1019 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1022 2009-11-26: Simon Goldschmidt
1023 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1024 algorithm at PCB level
1026 2009-11-22: Simon Goldschmidt
1027 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1029 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1030 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1031 reusing time-wait pcb
1033 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1034 * sockets.c: Fixed bug #28062: Data received directly after accepting
1035 does not wake up select
1037 2009-11-11: Simon Goldschmidt
1038 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1040 2009-10-30: Simon Goldschmidt
1041 * opt.h: Increased default value for TCP_MSS to 536, updated default
1042 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1044 2009-10-28: Kieran Mansley
1045 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1046 to follow algorithm from TCP/IP Illustrated
1048 2009-10-27: Kieran Mansley
1049 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1051 2009-10-25: Simon Goldschmidt
1052 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1053 pcb->recv is NULL to keep rcv_wnd correct)
1055 2009-10-25: Simon Goldschmidt
1056 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1058 2009-10-23: Simon Goldschmidt (David Empson)
1059 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1061 2009-10-21: Simon Goldschmidt
1062 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1063 trailing 1 byte len (SYN/FIN)
1065 2009-10-21: Simon Goldschmidt
1066 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1068 2009-10-19: Simon Goldschmidt
1069 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1070 conditional code to assert where applicable), check pbuf length before
1071 testing for valid reply
1073 2009-10-19: Simon Goldschmidt
1074 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1075 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1077 2009-10-16: Simon Goldschmidt
1078 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1079 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1082 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1083 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1085 2009-10-15: Simon Goldschmidt
1086 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1089 2009-10-15: Simon Goldschmidt
1090 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1091 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1092 of network byte order
1094 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1095 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1096 which are not consecutive when retransmitting unacked segments
1098 2009-10-09 Simon Goldschmidt
1099 * opt.h: Fixed default values of some stats to only be enabled if used
1100 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1102 2009-08-30 Simon Goldschmidt
1103 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1104 function" by checking for loopback before calling ip_frag
1106 2009-08-25 Simon Goldschmidt
1107 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1109 2009-08-23 Simon Goldschmidt
1110 * ppp.c: bug #27078: Possible memory leak in pppInit()
1112 2009-08-23 Simon Goldschmidt
1113 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1116 2009-08-23 Simon Goldschmidt
1117 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1118 Fixed wrong parenthesis, added check in init.c
1120 2009-08-23 Simon Goldschmidt
1121 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1123 2009-08-23 Simon Goldschmidt
1124 * many ppp files: bug #27267: Added include to string.h where needed
1126 2009-08-23 Simon Goldschmidt
1127 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1134 2009-05-10 Simon Goldschmidt
1135 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1136 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1137 one pbuf to help MACs that don't support scatter-gather DMA.
1139 2009-05-09 Simon Goldschmidt
1140 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1141 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1143 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1144 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1145 extended info about the currently received packet.
1147 2009-04-27 Simon Goldschmidt
1148 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1150 2009-04-25 Simon Goldschmidt
1151 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1152 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1154 2009-04-21 Simon Goldschmidt
1155 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1156 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1157 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1158 as an external function for lookup.
1160 2009-04-15 Simon Goldschmidt
1161 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1163 2009-03-31 Kieran Mansley
1164 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1165 TCP timestamp options, off by default. Rework tcp_enqueue() to
1166 take option flags rather than specified option data
1168 2009-02-18 Simon Goldschmidt
1169 * cc.h: Added printf formatter for size_t: SZT_F
1171 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1172 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1175 2009-02-12 Simon Goldschmidt
1176 * init.h: Added LWIP_VERSION to get the current version of the stack
1178 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1179 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1180 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1183 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1184 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1185 is only used by UDPLITE at present, so conditionalise it.
1187 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1188 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1189 "seed" address. This should reduce AUTOIP conflicts if
1190 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1192 2008-10-02 Jonathan Larmour and Rishi Khan
1193 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1196 2008-06-30 Simon Goldschmidt
1197 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1198 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1199 mem_free to run between mem_malloc iterations. Added illegal counter for
1202 2008-06-27 Simon Goldschmidt
1203 * stats.h/.c, some other files: patch #6483: stats module improvement:
1204 Added defines to display each module's statistic individually, added stats
1205 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1207 2008-06-17 Simon Goldschmidt
1208 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1209 (define LWIP_ERR_T in cc.h)
1211 2008-06-17 Simon Goldschmidt
1212 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1215 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1216 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1217 modified version of patch # 6370: Moved loopif code to netif.c so that
1218 loopback traffic is supported on all netifs (all local IPs).
1219 Added option to limit loopback packets for each netifs.
1223 2009-08-12 Kieran Mansley
1224 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1225 out of window or out of order properly
1227 2009-08-12 Kieran Mansley
1228 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1230 2009-07-28 Simon Goldschmidt
1231 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1233 2009-07-27 Kieran Mansley
1234 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1236 2009-07-09 Kieran Mansley
1237 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1238 recv_avail and don't increment counters until message successfully
1241 2009-06-25 Kieran Mansley
1242 * api_msg.c api.h: BUG26722: initialise netconn write variables
1245 2009-06-25 Kieran Mansley
1246 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1248 2009-06-25 Kieran Mansley
1249 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1250 simultaneous close behaviour, and make snd_nxt have the same meaning
1253 2009-05-12 Simon Goldschmidt
1254 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1255 arp_table / uses etharp_query" by adding etharp_gratuitous()
1257 2009-05-12 Simon Goldschmidt
1258 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1259 to the IP header (used by igmp_ip_output_if)
1261 2009-05-06 Simon Goldschmidt
1262 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1263 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1265 2009-05-05 Simon Goldschmidt
1266 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1269 2009-05-04 Simon Goldschmidt
1270 * init.c: snmp was not initialized in lwip_init()
1272 2009-05-04 Frédéric Bernon
1273 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1275 2009-05-03 Simon Goldschmidt
1276 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1277 (and unsent->next == NULL)
1279 2009-05-02 Simon Goldschmidt
1280 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1281 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1283 2009-05-02 Simon Goldschmidt
1284 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1286 2009-05-01 Simon Goldschmidt
1287 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1289 2009-05-01 Simon Goldschmidt
1290 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1292 2009-04-29 Frédéric Bernon
1293 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1294 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1295 of broadcast packets even when this option wasn't set. Port maintainers
1296 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1297 If you want this option also filter broadcast on recv operations, you also
1298 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1300 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1301 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1302 DHCP/AUTOIP cooperation
1304 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1305 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1306 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1307 right place in tcp_output and tcp_rexmit).
1309 2009-04-25 Simon Goldschmidt
1310 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1311 when debugging": memp_sizes contained the wrong sizes (including sanity
1312 regions); memp pools for MEM_USE_POOLS were too small
1314 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1315 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1316 behavior, with with ip address string not ended by a '\0', a space or a
1319 2009-04-19 Simon Goldschmidt
1320 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1321 pcb->err is called, not pcb->connected (with an error code).
1323 2009-04-19 Simon Goldschmidt
1324 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1325 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1327 2009-04-19 Simon Goldschmidt
1328 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1329 in the header pbuf, not the data pbuf)
1331 2009-04-18 Simon Goldschmidt
1332 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1334 2009-04-15 Simon Goldschmidt
1335 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1337 2009-04-15 Simon Goldschmidt
1338 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1340 2009-04-15 Simon Goldschmidt
1341 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1342 ip_hinted_output() (for smaller code mainly)
1344 2009-04-15 Simon Goldschmidt
1345 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1347 2009-04-15 Simon Goldschmidt
1348 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1349 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1350 is big enough in dhcp_start
1352 2009-04-15 Simon Goldschmidt
1353 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1355 2009-04-15 Simon Goldschmidt
1356 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1358 2009-04-15 Simon Goldschmidt
1359 * sockets.c: bug #26121: set_errno can be overridden
1361 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1362 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1365 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1366 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1369 2009-03-31 Kieran Mansley
1370 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1371 updates are calculated and sent (BUG20515)
1373 * tcp_in.c: cope with SYN packets received during established states,
1374 and retransmission of initial SYN.
1376 * tcp_out.c: set push bit correctly when tcp segments are merged
1378 2009-03-27 Kieran Mansley
1379 * tcp_out.c set window correctly on probes (correcting change made
1382 2009-03-26 Kieran Mansley
1383 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1384 connections where no reset required (bug #25622)
1386 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1389 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1390 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1391 too small depending on MEM_ALIGNMENT
1393 2009-02-16 Simon Goldschmidt
1394 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1395 converted size argument of netconn_write to 'size_t'
1397 2009-02-16 Simon Goldschmidt
1398 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1399 by moving accept callback function pointer to TCP_PCB_COMMON
1401 2009-02-12 Simon Goldschmidt
1402 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1405 2009-02-11 Simon Goldschmidt
1406 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1408 2009-02-11 Simon Goldschmidt
1409 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1410 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1412 2009-02-10 Simon Goldschmidt
1413 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1414 Accepts_pending is decrease on a corresponding listen pcb when a connection
1415 in state SYN_RCVD is close.
1417 2009-01-28 Jonathan Larmour
1418 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1421 2008-12-19 Simon Goldschmidt
1422 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1424 2008-12-10 Tamas Somogyi, Frédéric Bernon
1425 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1426 port uses deleted netbuf.
1428 2008-10-18 Simon Goldschmidt
1429 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1432 2008-10-15 Simon Goldschmidt
1433 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1434 by packing the struct ip_reass_helper.
1436 2008-10-03 David Woodhouse, Jonathan Larmour
1437 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1439 2008-10-02 Jonathan Larmour
1440 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1441 padding is included.
1443 2008-09-30 Jonathan Larmour
1444 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1445 assertion check that addrlen isn't NULL.
1447 2008-09-30 Jonathan Larmour
1448 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1450 2008-08-26 Simon Goldschmidt
1451 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1452 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1454 2008-08-14 Simon Goldschmidt
1455 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1456 tcp_close returns != ERR_OK)
1458 2008-07-08 Frédéric Bernon
1459 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1460 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1462 2008-06-24 Jonathan Larmour
1463 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1464 if tcp_seg_copy fails.
1466 2008-06-17 Simon Goldschmidt
1467 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1468 and created defines for swapping bytes and folding u32 to u16.
1470 2008-05-30 Kieran Mansley
1471 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1472 rather than rcv_ann_wnd when deciding if packets are in-window.
1473 Contributed by <arasmussen@consultant.datasys.swri.edu>
1475 2008-05-30 Kieran Mansley
1476 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1477 passing as function pointers when MEM_LIBC_MALLOC is defined.
1479 2008-05-09 Jonathan Larmour
1480 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1481 stop it being treated as a fatal error.
1483 2008-04-15 Simon Goldschmidt
1484 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1487 2008-03-27 Simon Goldschmidt
1488 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1489 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1490 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1491 or heap memory from interrupt context
1493 2008-03-26 Simon Goldschmidt
1494 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1495 host sent a zero mss as TCP option.
1502 2008-03-10 Jonathan Larmour
1503 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1504 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1506 2008-01-22 Frédéric Bernon
1507 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1508 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1510 2008-01-14 Frédéric Bernon
1511 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1512 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1513 tcp_recv callback (see rawapi.txt).
1515 2008-01-14 Frédéric Bernon, Marc Chaland
1516 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1518 2008-01-12 Frédéric Bernon
1519 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1520 netconn::sem per netconn::op_completed like suggested for the task #7490
1521 "Add return value to sys_mbox_post".
1523 2008-01-12 Frédéric Bernon
1524 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1525 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1526 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1528 2008-01-10 Frédéric Bernon
1529 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1530 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1531 "blocking" ("block" parameter = 1).
1533 2008-01-10 Frédéric Bernon
1534 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1535 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1536 "Add return value to sys_mbox_post".
1538 2008-01-05 Frédéric Bernon
1539 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1540 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1541 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1542 indicate the number of pointers query by the mailbox. There is three defines
1543 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1544 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1545 parameter in your implementation, but to ignore it to keep the previous behavior.
1546 The new sys_mbox_trypost function return a value to know if the mailbox is
1547 full or if the message is posted. Take a look to sys_arch.txt for more details.
1548 This new function is used in tcpip_input (so, can be called in an interrupt
1549 context since the function is not blocking), and in recv_udp and recv_raw.
1551 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1552 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1553 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1554 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1555 documentation in the rawapi.txt file.
1557 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1558 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1560 2007-12-31 Frédéric Bernon, Luca Ceresoli
1561 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1562 in autoip". The change in etharp_raw could be removed, since all calls to
1563 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1564 wrong in the future.
1566 2007-12-30 Frédéric Bernon, Tom Evans
1567 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1568 Filtering" reported by Tom Evans.
1570 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1571 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1572 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1573 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1574 keep accepting new connections.
1576 2007-12-13 Frédéric Bernon
1577 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1578 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1580 2007-12-12 Frédéric Bernon
1581 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1582 are the one which have ram usage.
1584 2007-12-05 Frédéric Bernon
1585 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1586 set of variables (=0) or a local one (=1). In this last case, your port should
1587 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1588 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1590 2007-12-03 Simon Goldschmidt
1591 * ip.c: ip_input: check if a packet is for inp first before checking all other
1592 netifs on netif_list (speeds up packet receiving in most cases)
1594 2007-11-30 Simon Goldschmidt
1595 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1596 UDP: move a (connected) pcb selected for input to the front of the list of
1597 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1600 2007-11-28 Simon Goldschmidt
1601 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1603 2007-11-25 Simon Goldschmidt
1604 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1607 2007-11-24 Simon Goldschmidt
1608 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1609 to the new file netdb.c; included lwip_getaddrinfo.
1611 2007-11-21 Simon Goldschmidt
1612 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1613 based on the MTU of the netif used to send. Enabled by default. Disable by
1614 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1616 2007-11-19 Frédéric Bernon
1617 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1618 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1619 copy dns payload to parse the response), return an error if there is no place
1620 for a new query, and fix some minor problems.
1622 2007-11-16 Simon Goldschmidt
1623 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1624 removed files: core/inet.c, core/inet6.c
1625 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1626 inet and chksum part; changed includes in all lwIP files as appropriate
1628 2007-11-16 Simon Goldschmidt
1629 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1630 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1631 (gethostbyname/gethostbyname_r).
1633 2007-11-15 Jim Pettinato, Frédéric Bernon
1634 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1635 requests with RAW api interface. Initialization is done in lwip_init() with
1636 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1637 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1638 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1639 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1640 list with points to improve.
1642 2007-11-06 Simon Goldschmidt
1643 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1644 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1645 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1647 2007-11-06 Simon Goldschmidt
1648 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1649 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1650 implementation from netconn api applications.
1652 2007-11-03 Frédéric Bernon
1653 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1654 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1655 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1656 it. This is a first release which have to be improve for TCP. Note it used the
1657 netconn::recv_avail which need to be more "thread-safe" (note there is already
1658 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1660 2007-11-01 Frédéric Bernon, Marc Chaland
1661 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1662 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1663 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1664 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1665 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1667 2007-10-24 Frédéric Bernon
1668 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1669 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1670 some code (like we have talk in "patch #5919 : Create compile switch to remove
1671 select code"), but it could be done later.
1673 2007-10-08 Simon Goldschmidt
1674 * many files: Changed initialization: many init functions are not needed any
1675 more since we now rely on the compiler initializing global and static
1678 2007-10-06 Simon Goldschmidt
1679 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1680 to enqueue the received pbufs so that multiple packets can be reassembled
1681 simultaneously and no static reassembly buffer is needed.
1683 2007-10-05 Simon Goldschmidt
1684 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1685 all netifs (or ports) can use it.
1687 2007-10-05 Frédéric Bernon
1688 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1689 common function to reduce a little bit the footprint (for all functions using
1690 only the "netif" parameter).
1692 2007-10-03 Frédéric Bernon
1693 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1694 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1695 a little bit the footprint (for all functions using only the "netif" parameter).
1697 2007-09-15 Frédéric Bernon
1698 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1699 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1700 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1701 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1703 2007-09-10 Frédéric Bernon
1704 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1705 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1706 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1707 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1708 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1709 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1710 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1711 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1712 when it's queried (any direct call to "sysuptime" is changed by a call to
1713 snmp_get_sysuptime).
1715 2007-09-09 Frédéric Bernon, Bill Florac
1716 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1717 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1718 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1719 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1720 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1721 the next query message to receive the matching multicast streams).
1723 2007-09-08 Frédéric Bernon
1724 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1725 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1726 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1727 Enable to access to these fields with LWIP_TCP=0.
1729 2007-09-05 Frédéric Bernon
1730 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1731 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1732 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1733 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1734 help to reduce footprint, and to reduce "visibility" on the Internet.
1736 2007-09-05 Frédéric Bernon, Bill Florac
1737 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1738 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1739 parameters have to be provided: a task name, and a task stack size. For this
1740 one, since it's platform dependant, you could define the best one for you in
1741 your lwipopts.h. For port maintainers, you can just add these new parameters
1742 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1745 2007-09-05 Frédéric Bernon
1746 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1747 inside init.c for task #7142 "Sanity check user-configurable values".
1749 2007-09-04 Frédéric Bernon, Bill Florac
1750 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1751 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1752 value). It will avoid potential fragmentation problems, use a counter to know
1753 how many times a group is used on an netif, and free it when all applications
1754 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1755 check if LWIP_IGMP!=0).
1757 2007-09-03 Frédéric Bernon
1758 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1759 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1760 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1761 and/or the "interface" field (for netconn layer), for join/leave operations.
1762 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1763 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1765 2007-08-30 Frédéric Bernon
1766 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1767 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1768 with other API (application based on raw API, or future "socket2" API). Ports
1769 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1771 2007-08-30 Frédéric Bernon, Jonathan Larmour
1772 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1773 user-configurable values".
1775 2007-08-29 Frédéric Bernon
1776 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1777 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1778 spirit than the others modules. Modify some IGMP debug traces.
1780 2007-08-29 Frédéric Bernon
1781 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1782 Add lwip_init function to regroup all modules initializations, and to provide
1783 a place to add code for task #7142 "Sanity check user-configurable values".
1784 Ports maintainers should remove direct initializations calls from their code,
1785 and add init.c in their makefiles. Note that lwip_init() function is called
1786 inside tcpip_init, but can also be used by raw api users since all calls are
1787 disabled when matching options are disabled. Also note that their is new options
1788 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1790 2007-08-26 Marc Boucher
1791 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1792 since they can under certain circumstances be called with an invalid conn
1793 pointer after the connection has been closed (and conn has been freed).
1795 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1796 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1797 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1799 2007-08-22 Frédéric Bernon
1800 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1801 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1803 2007-08-22 Frédéric Bernon
1804 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1805 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1806 name is tcpip_input (we keep the name of 1.2.0 function).
1808 2007-08-17 Jared Grubb
1809 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1810 settings into new memp_std.h and optional user file lwippools.h. This adds
1811 more dynamic mempools, and allows the user to create an arbitrary number of
1812 mempools for mem_malloc.
1814 2007-08-16 Marc Boucher
1815 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1816 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1817 close the connection.
1819 2007-08-16 Marc Boucher
1820 * sockets.c: lwip_accept(): check netconn_peer() error return.
1822 2007-08-16 Marc Boucher
1823 * mem.c, mem.h: Added mem_calloc().
1825 2007-08-16 Marc Boucher
1826 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1827 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1828 and starving other message types.
1829 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1831 2007-08-16 Marc Boucher
1832 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1833 type and flgs (later renamed to flags).
1834 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1835 Improved lwip_recvfrom(). TCP push now propagated.
1837 2007-08-16 Marc Boucher
1838 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1841 2007-08-16 Marc Boucher
1842 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1843 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1844 Added PPPoE support and various PPP improvements.
1846 2007-07-25 Simon Goldschmidt
1847 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1848 making netbuf_copy_partial use this function.
1850 2007-07-25 Simon Goldschmidt
1851 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1852 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1855 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1856 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1857 a link callback in the netif struct, and functions to handle it. Be carefull
1858 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1859 if you want to be sure to be compatible with future changes...
1861 2007-06-30 Frédéric Bernon
1862 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1864 2007-06-21 Simon Goldschmidt
1865 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1866 LWIP_AUTOIP =0 and =1 to remove redundant code.
1868 2007-06-21 Simon Goldschmidt
1869 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1870 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1871 heap. This both prevents memory fragmentation and gives a higher speed
1872 at the cost of more memory consumption. Turned off by default.
1874 2007-06-21 Simon Goldschmidt
1875 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1876 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1877 int to be able to send a bigger buffer than 64K with one time (mainly
1878 used from lwip_send).
1880 2007-06-21 Simon Goldschmidt
1881 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1882 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1884 2007-06-21 Simon Goldschmidt
1885 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1886 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1887 changes on low memory or empty send-buffer.
1889 2007-06-18 Simon Goldschmidt
1890 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1891 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1892 used for ethernet and struct eth_addr already had a defined length of 6).
1894 2007-06-17 Simon Goldschmidt
1895 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1896 to disable UDP checksum generation on transmit.
1898 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1899 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1900 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1901 this macro to check "conn" parameter in api_msg.c functions.
1903 2007-06-11 Simon Goldschmidt
1904 * sockets.c, sockets.h: Added UDP lite support for sockets
1906 2007-06-10 Simon Goldschmidt
1907 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1908 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1911 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1912 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1913 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1914 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1915 (see TODO mark in the source code).
1917 2007-06-09 Simon Goldschmidt
1918 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1919 etharp_output() to match netif->output so etharp_output() can be used
1920 directly as netif->output to save one function call.
1922 2007-06-08 Simon Goldschmidt
1923 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1924 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1925 added initialization of those to ethernetif, slipif and loopif.
1927 2007-05-18 Simon Goldschmidt
1928 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1929 (defaulting to off for now) that can be set to 0 to send fragmented
1930 packets by passing PBUF_REFs down the stack.
1932 2007-05-23 Frédéric Bernon
1933 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1934 connections, such present in patch #5959.
1936 2007-05-23 Frédéric Bernon
1937 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1938 code in only one part...
1940 2007-05-18 Simon Goldschmidt
1941 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1942 elements to overflow. This is achieved by adding some bytes before and after
1943 each pool element (increasing their size, of course), filling them with a
1944 prominent value and checking them on freeing the element.
1945 Set it to 2 to also check every element in every pool each time memp_malloc()
1946 or memp_free() is called (slower but more helpful).
1948 2007-05-10 Simon Goldschmidt
1949 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1950 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1953 2007-05-11 Frédéric Bernon
1954 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1955 Include a function pointer instead of a table index in the message to reduce
1956 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1957 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1959 2007-05-10 Simon Goldschmidt
1960 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1961 \ extern "C" {' in all header files. Now you can write your application using
1962 the lwIP stack in C++ and simply #include the core files. Note I have left
1963 out the netif/ppp/*h header files for now, since I don't know which files are
1964 included by applications and which are for internal use only.
1966 2007-05-09 Simon Goldschmidt
1967 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1968 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1969 situations where some compilers might inline the copy and save a function
1970 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1972 2007-05-08 Simon Goldschmidt
1973 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1974 to be overriden in case the C-library malloc implementation is not protected
1975 against concurrent access.
1977 2007-05-04 Simon Goldschmidt (Atte Kojo)
1978 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1979 multiple packets to the same host.
1981 2007-05-04 Frédéric Bernon, Jonathan Larmour
1982 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1983 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1984 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1985 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1986 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1987 these fields are now renamed "addr" & "port".
1989 2007-04-11 Jonathan Larmour
1990 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1991 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1992 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1993 by the port in sys_arch.h if desired.
1995 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1996 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1997 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1998 clients, using new functions from netifapi.h. Disable as default (no port change to do).
2000 2007-04-05 Frédéric Bernon
2001 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
2003 2007-04-04 Simon Goldschmidt
2004 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
2005 use this for and architecture-independent form to tell the compiler you intentionally
2006 are not using this variable. Can be overriden in cc.h.
2008 2007-03-28 Frédéric Bernon
2009 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
2010 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
2011 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
2012 It will be used by DHCP to register a client hostname, but can also be use when you call
2015 2007-03-28 Frédéric Bernon
2016 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2017 initialize a network interface's flag with. It tell this interface is an ethernet
2018 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2019 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2021 2007-03-26 Frédéric Bernon, Jonathan Larmour
2022 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2023 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2024 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2025 is done in tcpip_init function.
2027 2007-03-22 Frédéric Bernon
2028 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2029 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2030 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2031 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2032 but never used. Fix msg_in.c with the correct #if test for a stat display.
2034 2007-03-21 Kieran Mansley
2035 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2036 Provides callback on netif up/down state change.
2038 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2039 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2040 ip.c, netif.h, tcpip.c, opt.h:
2041 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2042 filter per all network interfaces. Declare a new function in netif to enable to
2043 control the MAC filter (to reduce lwIP traffic processing).
2045 2007-03-11 Frédéric Bernon
2046 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2047 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2048 unless you know what you're doing (default are RFC1122 compliant). Note
2049 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2051 2007-03-08 Frédéric Bernon
2052 * tcp.h: Keepalive values can be configured at compile time, but don't change
2053 this unless you know what you're doing (default are RFC1122 compliant).
2055 2007-03-08 Frédéric Bernon
2056 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2057 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2058 on UDP sockets/netconn.
2060 2007-03-08 Simon Goldschmidt
2061 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2063 2007-03-06 Frédéric Bernon
2064 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2065 Implement SO_RCVTIMEO on UDP sockets/netconn.
2067 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2068 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2069 on the stack and remove the API msg type from memp
2071 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2072 * sockets.h, sockets.c: Move socket initialization to new
2073 lwip_socket_init() function.
2074 NOTE: this changes the API with ports. Ports will have to be
2075 updated to call lwip_socket_init() now.
2077 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2078 * api_lib.c: Use memcpy in netbuf_copy_partial.
2083 2008-03-17 Frédéric Bernon, Ed Kerekes
2084 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2085 some problems to fill the IP header on some targets, use now the
2086 ip.h macros to do it).
2088 2008-03-13 Frédéric Bernon
2089 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2090 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2091 TCP connection caused a crash. Note that using (lwip_)recvfrom
2092 like this is a bit slow and that using (lwip)getpeername is the
2093 good lwip way to do it (so, using recv is faster on tcp sockets).
2095 2008-03-12 Frédéric Bernon, Jonathan Larmour
2096 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2097 recv_raw() does not consume data", and the ping sample (with
2098 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2099 returned the IP payload, without the IP header).
2101 2008-03-04 Jonathan Larmour
2102 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2103 and/or warnings on some systems where mem_size_t and size_t differ.
2104 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2106 2008-03-04 Kieran Mansley (contributions by others)
2107 * Numerous small compiler error/warning fixes from contributions to
2108 mailing list after 1.3.0 release candidate made.
2110 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2111 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2113 2008-01-15 Kieran Mansley
2114 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2115 prevented from sending by a small send window, not just a zero
2118 2008-01-09 Jonathan Larmour
2119 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2120 conflict with Linux system headers.
2122 2008-01-06 Jonathan Larmour
2123 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2124 address entirely on receiving a DHCPNAK, and restarting discovery.
2126 2007-12-21 Simon Goldschmidt
2127 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2128 is not protected" by using new macros for interlocked access to modify/test
2129 netconn->recv_avail.
2131 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2132 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2134 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2135 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2136 of silly window avoidance and prevent lwIP from shrinking the window)
2138 2007-12-04 Simon Goldschmidt
2139 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2140 data packet was lost): add assert that all segment lists are empty in
2141 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2142 state from LAST_ACK in tcp_process
2144 2007-12-02 Simon Goldschmidt
2145 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2146 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2147 has to be set to 0 in lwipopts.h
2149 2007-12-02 Simon Goldschmidt
2150 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2151 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2152 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2153 This is a fix for thread-safety and allocates all items needed for a netconn
2154 when the netconn is created.
2156 2007-11-30 Simon Goldschmidt
2157 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2158 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2159 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2160 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2162 2007-11-27 Simon Goldschmidt
2163 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2164 letting ip_route only use netifs that are up.
2166 2007-11-27 Simon Goldschmidt
2167 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2168 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2169 sockets block most operations once they have seen a fatal error.
2171 2007-11-27 Simon Goldschmidt
2172 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2173 netif to send as an argument (to be able to send on netifs that are down).
2175 2007-11-26 Simon Goldschmidt
2176 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2179 2007-11-21 Simon Goldschmidt
2180 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2181 Fixed the nagle algorithm; nagle now also works for all raw API applications
2182 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2184 2007-11-12 Frédéric Bernon
2185 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2186 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2187 context in do_getaddr.
2189 2007-11-10 Simon Goldschmidt
2190 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2191 happen any time). Now the packet simply isn't enqueued when out of memory.
2193 2007-11-01 Simon Goldschmidt
2194 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2195 TCP_MSS if that is smaller) as long as no MSS option is received from the
2198 2007-11-01 Simon Goldschmidt
2199 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2200 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2201 sending our configured TCP_MSS instead of the one received).
2203 2007-11-01 Simon Goldschmidt
2204 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2205 calculated based on the configured TCP_MSS, not on the MSS option received
2208 2007-10-09 Simon Goldschmidt
2209 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2210 short and also was generated wrong if checksum coverage != tot_len;
2211 receive: checksum was calculated wrong if checksum coverage != tot_len
2213 2007-10-08 Simon Goldschmidt
2214 * mem.c: lfree was not updated in mem_realloc!
2216 2007-10-07 Frédéric Bernon
2217 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2218 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2219 this change cause an API breakage for netconn_addr, since a parameter
2220 type change. Any compiler should cause an error without any changes in
2221 yours netconn_peer calls (so, it can't be a "silent change"). It also
2222 reduce a little bit the footprint for socket layer (lwip_getpeername &
2223 lwip_getsockname use now a common lwip_getaddrname function since
2224 netconn_peer & netconn_addr have the same parameters).
2226 2007-09-20 Simon Goldschmidt
2227 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2228 by checking tcp_tw_pcbs also
2230 2007-09-19 Simon Goldschmidt
2231 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2233 2007-09-15 Mike Kleshov
2234 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2236 2007-09-06 Frédéric Bernon
2237 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2238 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2239 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2240 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2242 2007-08-30 Frédéric Bernon
2243 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2244 and fix some coding style.
2246 2007-08-28 Frédéric Bernon
2247 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2248 kind of packets. These packets are considered like Ethernet packets (payload
2249 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2250 are considered like IP packets (payload pointing to iphdr).
2252 2007-08-27 Frédéric Bernon
2253 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2254 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2255 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2257 2007-08-24 Kieran Mansley
2258 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2259 compiler (Paradigm C++)
2261 2007-08-09 Frédéric Bernon, Bill Florac
2262 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2263 Introduce IGMP_STATS to centralize statistics management.
2265 2007-08-09 Frédéric Bernon, Bill Florac
2266 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2267 packet on a udp pcb binded on an netif's IP address, and not on "any".
2269 2007-08-09 Frédéric Bernon, Bill Florac
2270 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2271 This is mainly on using lookup/lookfor, and some coding styles...
2273 2007-07-26 Frédéric Bernon (and "thedoctor")
2274 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2276 2007-07-25 Simon Goldschmidt
2277 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2278 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2279 (tcp_output is called again later from tcp timers).
2281 2007-07-25 Simon Goldschmidt
2282 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2283 copy_from_pbuf, which illegally modified the given pbuf.
2285 2007-07-25 Simon Goldschmidt
2286 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2287 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2289 2007-07-24 Simon Goldschmidt
2290 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2291 correct state (must be CLOSED).
2293 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2294 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2295 allocation. It now returns NULL.
2297 2007-07-13 Frédéric Bernon
2298 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2301 2007-07-13 Frédéric Bernon
2302 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2303 because current code doesn't follow rawapi.txt documentation.
2305 2007-07-13 Kieran Mansley
2306 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2307 out of sequence processing of received packets
2309 2007-07-03 Simon Goldschmidt
2310 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2311 assumption is made that this pbuf is in one piece (i.e. not chained). These
2312 assumptions clash with the possibility of converting to fully pool-based
2313 pbuf implementations, where PBUF_RAM pbufs might be chained.
2315 2007-07-03 Simon Goldschmidt
2316 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2317 when closing tcp netconns: removed conn->sem, less context switches when
2318 closing, both netconn_close and netconn_delete should safely close tcp
2321 2007-07-02 Simon Goldschmidt
2322 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2323 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2324 to cache ARP table indices with each pcb instead of single-entry cache for
2327 2007-07-02 Simon Goldschmidt
2328 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2329 warnings when assigning to smaller types.
2331 2007-06-28 Simon Goldschmidt
2332 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2334 2007-06-28 Simon Goldschmidt
2335 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2336 a segment contained chained pbufs)
2338 2007-06-28 Frédéric Bernon
2339 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2340 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2341 possible to define this macro in your own lwipopts.h to always use C library's
2342 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2344 2007-06-28 Frédéric Bernon
2345 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2346 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2347 in api_lib/api_msg (use pointers and not type with table, etc...)
2349 2007-06-26 Simon Goldschmidt
2350 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2352 2007-06-25 Simon Goldschmidt
2353 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2354 for udp packets with no matching pcb.
2356 2007-06-25 Simon Goldschmidt
2357 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2358 could get udp input packets if the remote side matched.
2360 2007-06-13 Simon Goldschmidt
2361 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2362 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2364 2007-06-13 Simon Goldschmidt
2365 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2366 -> netconn_new_..() does not allocate a new connection for unsupported
2369 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2370 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2371 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2373 2007-06-13 Frédéric Bernon, Matthias Weisser
2374 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2375 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2376 some macro names collision with some OS macros.
2378 2007-06-11 Simon Goldschmidt
2379 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2380 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2381 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2384 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2385 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2386 where TCP flags wasn't initialized in tcp_keepalive.
2388 2007-06-03 Simon Goldschmidt
2389 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2390 registered, p->payload was modified without modifying p->len if sending
2391 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2393 2007-06-03 Simon Goldschmidt
2394 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2395 re-used the input pbuf even if that didn't have enough space to include the
2396 link headers. Now the space is tested and a new pbuf is allocated for the
2397 echo response packet if the echo request pbuf isn't big enough.
2399 2007-06-01 Simon Goldschmidt
2400 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2402 2007-05-23 Frédéric Bernon
2403 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2404 allocated by do_listen if success) and netconn_accept errors handling. In
2405 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2406 by ASSERT, except for netconn_delete.
2408 2007-05-23 Frédéric Bernon
2409 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2410 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2411 directly close the recvmbox).
2413 2007-05-22 Simon Goldschmidt
2414 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2415 bound but unconnected (and non-listening) tcp_pcbs.
2417 2007-05-22 Frédéric Bernon
2418 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2419 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2420 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2421 like "sys_timeout" in their application threads.
2423 2007-05-22 Frédéric Bernon
2424 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2425 which parameters are used by which do_xxx function, and to avoid "misusing"
2426 parameters (patch #5938).
2428 2007-05-22 Simon Goldschmidt
2429 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2430 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2431 is only 8 bits wide. This affects the api, as there, the protocol was
2434 2007-05-18 Simon Goldschmidt
2435 * memp.c: addition to patch #5913: smaller pointer was returned but
2436 memp_memory was the same size -> did not save memory.
2438 2007-05-16 Simon Goldschmidt
2439 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2442 2007-05-16 Simon Goldschmidt
2443 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2444 as the one of the netif used for sending to prevent sending from old
2445 addresses after a netif address gets changed (partly fixes bug #3168).
2447 2007-05-16 Frédéric Bernon
2448 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2449 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2450 tcpip_init) because we have to be sure that network interfaces are already
2451 added (mac filter is updated only in igmp_init for the moment).
2453 2007-05-16 Simon Goldschmidt
2454 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2455 into sys_arch_sem_wait calls to prevent timers from running while waiting
2456 for the heap. This fixes bug #19167.
2458 2007-05-13 Simon Goldschmidt
2459 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2460 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2463 2007-05-07 Simon Goldschmidt
2464 * mem.c: Another attempt to fix bug #17922.
2466 2007-05-04 Simon Goldschmidt
2467 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2468 implementation so that it can be reused (don't allocate the target
2469 pbuf inside pbuf_copy()).
2471 2007-05-04 Simon Goldschmidt
2472 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2473 to save a little RAM (next pointer of memp is not used while not in pool).
2476 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2479 2007-04-23 Simon Goldschmidt
2480 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2481 in NULL reference for incoming TCP packets". Loopif has to be configured
2482 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2483 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2484 putting packets on a list that is fed to the stack by calling loopif_poll()
2485 (single-thread / NO_SYS / polling environment where e.g.
2486 netif->input() = ip_input).
2488 2007-04-17 Jonathan Larmour
2489 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2490 the difference between two u16_t's.
2491 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2492 MEMP_NUM_NETCONN in sockets.c right now.
2494 2007-04-12 Jonathan Larmour
2495 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2497 2007-04-12 Kieran Mansley
2498 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2499 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2501 2007-04-11 Simon Goldschmidt
2502 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2503 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2504 pbuf.c: removed functions no needed any more (by etharp).
2506 2007-04-11 Kieran Mansley
2507 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2508 "Constant is long" warnings with 16bit compilers. Contributed by
2509 avatar@mmlab.cse.yzu.edu.tw
2511 2007-04-05 Frédéric Bernon, Jonathan Larmour
2512 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2513 the mailbox is active". Now, the post is only done during a connect, and do_send,
2514 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2516 2007-04-03 Frédéric Bernon
2517 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2518 packets. See patch #5834.
2520 2007-03-30 Frédéric Bernon
2521 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2522 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2524 2007-03-30 Frédéric Bernon
2525 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2526 others environment defines (these were too "generic").
2528 2007-03-28 Frédéric Bernon
2529 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2530 result and can cause a crash. lwip_send now check netbuf_ref result.
2532 2007-03-28 Simon Goldschmidt
2533 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2534 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2535 defined. This is the way it should have been already (looking at
2538 2007-03-28 Kieran Mansley
2539 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2540 IP and TCP headers *and* physical link headers
2542 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2543 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2544 to send some garbage. It is not a definitive solution, but the patch does solve
2545 the problem for most cases.
2547 2007-03-22 Frédéric Bernon
2548 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2550 2007-03-22 Frédéric Bernon
2551 * api_lib.c: somes resources couldn't be freed if there was errors during
2552 netconn_new_with_proto_and_callback.
2554 2007-03-22 Frédéric Bernon
2555 * ethernetif.c: update netif->input calls to check return value. In older ports,
2556 it's a good idea to upgrade them, even if before, there could be another problem
2557 (access to an uninitialized mailbox).
2559 2007-03-21 Simon Goldschmidt
2560 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2561 by casting to unsigned).
2563 2007-03-21 Frédéric Bernon
2564 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2565 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2566 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2567 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2568 faster and more reliable communication between api_lib and tcpip.
2570 2007-03-21 Frédéric Bernon
2571 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2573 2007-03-21 Frédéric Bernon
2574 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2576 2007-03-21 Kieran Mansley
2577 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2580 2007-03-21 Kieran Mansley
2581 * Fix all uses of pbuf_header to check the return value. In some
2582 cases just assert if it fails as I'm not sure how to fix them, but
2583 this is no worse than before when they would carry on regardless
2586 2007-03-21 Kieran Mansley
2587 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2588 comment out missing header include in icmp.c
2590 2007-03-20 Frédéric Bernon
2591 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2592 synchronized with memp.h.
2594 2007-03-20 Frédéric Bernon
2595 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2596 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2597 network interfaces. Also fix a compiler warning.
2599 2007-03-20 Kieran Mansley
2600 * udp.c: Only try and use pbuf_header() to make space for headers if
2601 not a ROM or REF pbuf.
2603 2007-03-19 Frédéric Bernon
2604 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2607 2007-03-19 Frédéric Bernon
2608 * Remove unimplemented "memp_realloc" function from memp.h.
2610 2007-03-11 Simon Goldschmidt
2611 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2614 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2615 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2616 (missing `const' qualifier in socket functions), to get more compatible to
2617 standard POSIX sockets.
2619 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2620 * sockets.c: Add asserts inside bind, connect and sendto to check input
2621 parameters. Remove excessive set_errno() calls after get_socket(), because
2622 errno is set inside of get_socket(). Move last sock_set_errno() inside
2625 2007-03-09 Simon Goldschmidt
2626 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2627 was allocated too small.
2629 2007-03-06 Simon Goldschmidt
2630 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2631 the stack from concurrent access.
2633 2007-03-06 Frédéric Bernon, Dmitry Potapov
2634 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2635 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2637 2007-03-06 Simon Goldschmidt
2638 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2639 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2641 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2642 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2643 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2644 Allow to do ARP processing for incoming packets inside tcpip_thread
2645 (protecting ARP layer against concurrent access). You can also disable
2646 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2647 Older ports have to use tcpip_ethinput.
2649 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2650 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2651 from pointer target type"
2653 2007-03-05 Frédéric Bernon
2654 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2655 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2657 2007-03-04 Frédéric Bernon
2658 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2661 2007-03-04 Frédéric Bernon
2662 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2664 The api_msg struct stay on the stack (not moved to netconn struct).
2666 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2667 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2668 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2669 Also fixed cast warning in pbuf_alloc()
2671 2007-03-04 Simon Goldschmidt
2672 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2673 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2675 2007-03-03 Frédéric Bernon
2676 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2677 It is static, and never used in udp.c except udp_init().
2679 2007-03-02 Simon Goldschmidt
2680 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2681 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2682 initialized before tcpip_thread is running (e.g. before OS is started)
2684 2007-03-02 Frédéric Bernon
2685 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2688 2007-02-28 Kieran Mansley
2689 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2690 outside the region of the pbuf by pbuf_header()
2692 2007-02-28 Kieran Mansley
2693 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2694 when supplied timeout is also non-zero
2698 2006-12-05 Leon Woestenberg
2699 * CHANGELOG: Mention STABLE-1.2.0 release.
2703 2006-12-01 Christiaan Simons
2704 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2705 Note this is a workaround. Currently I have no other options left.
2707 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2708 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2709 to include/lwip/opt.h.
2710 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2711 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2712 * opt.h: Add above new options.
2714 2006-08-18 Christiaan Simons
2715 * tcp_{in,out}.c: added SNMP counters.
2716 * ipv4/ip.c: added SNMP counters.
2717 * ipv4/ip_frag.c: added SNMP counters.
2719 2006-08-08 Christiaan Simons
2720 * etharp.{c,h}: added etharp_find_addr() to read
2721 (stable) ethernet/IP address pair from ARP table
2723 2006-07-14 Christiaan Simons
2724 * mib_structs.c: added
2725 * include/lwip/snmp_structs.h: added
2726 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2728 2006-07-06 Christiaan Simons
2729 * snmp/asn1_{enc,dec}.c added
2731 * snmp/msg_{in,out}.c added
2732 * include/lwip/snmp_asn1.h added
2733 * include/lwip/snmp_msg.h added
2734 * doc/snmp_agent.txt added
2736 2006-03-29 Christiaan Simons
2737 * inet.c, inet.h: Added platform byteswap support.
2738 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2739 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2743 2006-11-30 Christiaan Simons
2744 * dhcp.c: Fixed false triggers of request_timeout.
2746 2006-11-28 Christiaan Simons
2747 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2749 2006-10-11 Christiaan Simons
2750 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2751 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2752 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2753 identifier from 170 to 136 (bug #17574).
2755 2006-10-10 Christiaan Simons
2756 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2758 2006-08-17 Christiaan Simons
2759 * udp.c: Fixed bug #17200, added check for broadcast
2760 destinations for PCBs bound to a unicast address.
2762 2006-08-07 Christiaan Simons
2763 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2765 2006-06-27 Christiaan Simons
2766 * api_msg.c: Applied patch for cold case (bug #11135).
2767 In accept_function() ensure newconn->callback is always initialized.
2769 2006-06-15 Christiaan Simons
2770 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2771 facilitate printing of mem_size_t and u16_t statistics.
2773 2006-06-14 Christiaan Simons
2774 * api_msg.c: Applied patch #5146 to handle allocation failures
2775 in accept() by Kevin Lawson.
2777 2006-05-26 Christiaan Simons
2778 * api_lib.c: Removed conn->sem creation and destruction
2779 from netconn_write() and added sys_sem_new to netconn_new_*.
2783 2006-03-03 Christiaan Simons
2784 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2785 access and added pbuf_alloc() return value checks.
2787 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2788 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2789 now handled by the checksum routine properly.
2791 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2792 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2793 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2795 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2796 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2797 submitted by Mitrani Hiroshi.
2799 2005-12-15 Christiaan Simons
2800 * inet.c: Disabled the added summing routine to preserve code space.
2802 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2803 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2804 Added Curt McDowell's optimized checksumming routine for future
2805 inclusion. Need to create test case for unaliged, aligned, odd,
2806 even length combination of cases on various endianess machines.
2808 2005-12-09 Christiaan Simons
2809 * inet.c: Rewrote standard checksum routine in proper portable C.
2811 2005-11-25 Christiaan Simons
2812 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2813 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2814 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2816 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2817 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2818 routine by Peter Jolasson.
2819 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2821 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2822 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2823 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2825 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2826 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2828 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2829 * udp.c: UDP pcb->recv() was called even when it was NULL.
2833 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2834 * etharp.*: Disabled multiple packets on the ARP queue.
2835 This clashes with TCP queueing.
2837 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2838 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2839 Halved the ARP period, doubled the period counts.
2840 ETHARP_MAX_PENDING now should be at least 2. This prevents
2841 the counter from reaching 0 right away (which would allow
2842 too little time for ARP responses to be received).
2844 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2845 * dhcp.c: Decline messages were not multicast but unicast.
2846 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2847 Do not try hard to insert arbitrary packet's source address,
2848 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2849 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2850 querying an address will see it appear in the cache (DHCP could
2851 suffer from this when a server invalidly gave an in-use address.)
2852 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2853 comparing network addresses (identifiers), not the network masks
2855 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2856 IP address actually belongs to the network of the given interface.
2858 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2859 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2863 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2864 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2865 even if one is already pending, if the rcv_wnd is above a threshold
2866 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2867 delayed ACK in order to open the window if the stack is only receiving data.
2869 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2870 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2872 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2873 * etharp.c: Make sure the first pbuf queued on an ARP entry
2874 is properly ref counted.
2876 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2877 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2878 warnings about comparison.
2879 * pbuf.c: Stopped compiler complaining of empty if statement
2880 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2881 * tcp.c: Stopped compiler complaining of empty if statement
2882 when LWIP_DEBUGF() empty.
2883 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2884 * inet.c: Added a couple of casts to quiet the compiler.
2885 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2887 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2888 * inet.c: Made data types consistent in inet_ntoa().
2889 Added casts for return values of checksum routines, to pacify compiler.
2890 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2891 Small corrections to some debugging statements, to pacify compiler.
2893 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2894 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2895 * ethernetif.c Updated low_level_output() to match prototype for
2896 netif->linkoutput and changed low_level_input() similarly for consistency.
2897 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2898 of raw_recv() in raw.h and so avoid compiler error.
2899 * sockets.c: Added trivial (int) cast to keep compiler happier.
2900 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2906 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2907 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2908 your cc.h file defines this either 1 or 0. If non-defined,
2910 * .c: Added <string.h> and <errno.h> includes where used.
2911 * etharp.c: Made some array indices unsigned.
2913 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2914 * netif.*: Added netif_set_up()/down().
2915 * dhcp.c: Changes to restart program flow.
2917 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2918 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2919 single-pass lookup for different candidates. Should exploit locality.
2921 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2922 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2923 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2924 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2925 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2929 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2930 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2931 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2932 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2933 is to prefix the 14-bit Ethernet headers with two padding bytes.
2935 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2936 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2937 * etharp.c: Fixed the case where the packet that initiates the ARP request
2938 is not queued, and gets lost. Fixed the case where the packets destination
2939 address is already known; we now always queue the packet and perform an ARP
2946 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2947 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2948 * Fixed two possible NULL references in rare cases.
2954 * Fixed DHCP which did not include the IP address in DECLINE messages.
2958 * etharp.c has been hauled over a bit.
2964 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2965 * Packets sent from ARP queue had invalid source hardware address.
2969 * Pass-by ARP requests do now update the cache.
2973 * No longer dependent on ctype.h.
2974 * New socket options.
2975 * Raw IP pcb support.
2981 * Some debug formatters and casts fixed.
2982 * Numereous fixes in PPP.
2986 * DEBUGF now is LWIP_DEBUGF
2987 * pbuf_dechain() has been re-enabled.
2988 * Mentioned the changed use of CVS branches in README.
2994 * Fixed pool pbuf memory leak in pbuf_alloc().
2995 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2996 Reported by Savin Zlobec.
2998 * PBUF_POOL chains had their tot_len field not set for non-first
2999 pbufs. Fixed in pbuf_alloc().
3003 * Added PPP stack contributed by Marc Boucher
3007 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
3009 * ARP queueuing now queues the latest packet instead of the first.
3010 This is the RFC recommended behaviour, but can be overridden in
3017 * TCP has been fixed to deal with the new use of the pbuf->ref
3020 * DHCP dhcp_inform() crash bug fixed.
3024 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3025 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3026 Implemented by David Haas.
3032 * The packet buffer implementation has been enhanced to support
3033 zero-copy and copy-on-demand for packet buffers which have their
3034 payloads in application-managed memory.
3035 Implemented by David Haas.
3037 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3038 if an outgoing packet can be directly sent on the link, or perform
3039 a copy-on-demand when necessary.
3041 The application can safely assume the packet is sent, and the RAM
3042 is available to the application directly after calling udp_send()
3043 or similar function.
3047 * ARP_QUEUEING should now correctly work for all cases, including
3049 Implemented by Leon Woestenberg.
3053 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3054 to a '0.0.0.0' IP address.
3056 * The packet buffer implementation is changed. The pbuf->ref counter
3057 meaning has changed, and several pbuf functions have been
3058 adapted accordingly.
3060 * netif drivers have to be changed to set the hardware address length field
3061 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3062 See the contrib/ports/c16x cs8900 driver as a driver example.
3064 * netif's have a dhcp field that must be initialized to NULL by the driver.
3065 See the contrib/ports/c16x cs8900 driver as a driver example.
3067 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3068 logged in CVS but have not been explained here.
3070 (0.5.3) Changes since version 0.5.2
3074 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3075 threads because it wasn't protected by semaphores.
3079 * struct ip_addr now packed.
3081 * The name of the time variable in arp.c has been changed to ctime
3082 to avoid conflicts with the time() function.
3084 (0.5.2) Changes since version 0.5.1
3088 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3092 * A bug in tcp_parseopt() could cause the stack to hang because of a
3093 malformed TCP option.
3095 * The address of new connections in the accept() function in the BSD
3096 socket library was not handled correctly.
3098 * pbuf_dechain() did not update the ->tot_len field of the tail.
3100 * Aborted TCP connections were not handled correctly in all
3105 * All protocol header structs are now packed.
3107 * The ->len field in the tcp_seg structure now counts the actual
3108 amount of data, and does not add one for SYN and FIN segments.
3110 (0.5.1) Changes since version 0.5.0
3114 * Possible to run as a user process under Linux.
3116 * Preliminary support for cross platform packed structs.
3118 * ARP timer now implemented.
3122 * TCP output queue length was badly initialized when opening
3125 * TCP delayed ACKs were not sent correctly.
3127 * Explicit initialization of BSS segment variables.
3129 * read() in BSD socket library could drop data.
3131 * Problems with memory alignment.
3133 * Situations when all TCP buffers were used could lead to
3136 * TCP MSS option wasn't parsed correctly.
3138 * Problems with UDP checksum calculation.
3140 * IP multicast address tests had endianess problems.
3142 * ARP requests had wrong destination hardware address.
3146 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3148 * A ->linkoutput() member was added to struct netif.
3150 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3152 * ntoh* macros are now null definitions for big endian CPUs.
3154 (0.5.0) Changes since version 0.4.2
3158 * Redesigned operating system emulation layer to make porting easier.
3160 * Better control over TCP output buffers.
3162 * Documenation added.
3166 * Locking issues in buffer management.
3168 * Bugfixes in the sequential API.
3170 * IP forwarding could cause memory leakage. This has been fixed.
3174 * Directory structure somewhat changed; the core/ tree has been
3177 (0.4.2) Changes since version 0.4.1
3181 * Experimental ARP implementation added.
3183 * Skeleton Ethernet driver added.
3185 * Experimental BSD socket API library added.
3189 * In very intense situations, memory leakage could occur. This has
3194 * Variables named "data" and "code" have been renamed in order to
3195 avoid name conflicts in certain compilers.
3197 * Variable++ have in appliciable cases been translated to ++variable
3198 since some compilers generate better code in the latter case.
3200 (0.4.1) Changes since version 0.4
3204 * TCP: Connection attempts time out earlier than data
3205 transmissions. Nagle algorithm implemented. Push flag set on the
3206 last segment in a burst.
3208 * UDP: experimental support for UDP-Lite extensions.
3212 * TCP: out of order segments were in some cases handled incorrectly,
3213 and this has now been fixed. Delayed acknowledgements was broken
3214 in 0.4, has now been fixed. Binding to an address that is in use
3215 now results in an error. Reset connections sometimes hung an
3216 application; this has been fixed.
3218 * Checksum calculation sometimes failed for chained pbufs with odd
3219 lengths. This has been fixed.
3221 * API: a lot of bug fixes in the API. The UDP API has been improved
3222 and tested. Error reporting and handling has been
3223 improved. Logical flaws and race conditions for incoming TCP
3224 connections has been found and removed.
3226 * Memory manager: alignment issues. Reallocating memory sometimes
3227 failed, this has been fixed.
3229 * Generic library: bcopy was flawed and has been fixed.
3233 * API: all datatypes has been changed from generic ones such as
3234 ints, to specified ones such as u16_t. Functions that return
3235 errors now have the correct type (err_t).
3237 * General: A lot of code cleaned up and debugging code removed. Many
3238 portability issues have been fixed.
3240 * The license was changed; the advertising clause was removed.
3244 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3245 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3248 (0.4) Changes since version 0.3.1
3250 * Memory management has been radically changed; instead of
3251 allocating memory from a shared heap, memory for objects that are
3252 rapidly allocated and deallocated is now kept in pools. Allocation
3253 and deallocation from those memory pools is very fast. The shared
3254 heap is still present but is used less frequently.
3256 * The memory, memory pool, and packet buffer subsystems now support
3257 4-, 2-, or 1-byte alignment.
3259 * "Out of memory" situations are handled in a more robust way.
3261 * Stack usage has been reduced.
3263 * Easier configuration of lwIP parameters such as memory usage,
3264 TTLs, statistics gathering, etc. All configuration parameters are
3265 now kept in a single header file "lwipopts.h".
3267 * The directory structure has been changed slightly so that all
3268 architecture specific files are kept under the src/arch
3271 * Error propagation has been improved, both in the protocol modules
3274 * The code for the RTXC architecture has been implemented, tested
3277 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3278 the Internet checksum modules.
3280 * Bugs related to porting between a 32-bit and a 16-bit architecture
3281 have been found and corrected.
3283 * The license has been changed slightly to conform more with the
3284 original BSD license, including the advertisement clause.
3286 (0.3.1) Changes since version 0.3
3288 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3289 RAM never returned the RAM when the pbuf was deallocated.
3291 * TCP congestion control, window updates and retransmissions did not
3292 work correctly. This has now been fixed.
3294 * Bugfixes in the API.
3296 (0.3) Changes since version 0.2
3298 * New and improved directory structure. All include files are now
3299 kept in a dedicated include/ directory.
3301 * The API now has proper error handling. A new function,
3302 netconn_err(), now returns an error code for the connection in
3305 * Improvements in the memory management subsystem. The system now
3306 keeps a pointer to the lowest free memory block. A new function,
3307 mem_malloc2() tries to allocate memory once, and if it fails tries
3308 to free some memory and retry the allocation.
3310 * Much testing has been done with limited memory
3311 configurations. lwIP now does a better job when overloaded.
3313 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3315 * Many bugfixes in the TCP code:
3317 - Fixed a bug in tcp_close().
3319 - The TCP receive window was incorrectly closed when out of
3320 sequence segments was received. This has been fixed.
3322 - Connections are now timed-out of the FIN-WAIT-2 state.
3324 - The initial congestion window could in some cases be too
3325 large. This has been fixed.
3327 - The retransmission queue could in some cases be screwed up. This
3330 - TCP RST flag now handled correctly.
3332 - Out of sequence data was in some cases never delivered to the
3333 application. This has been fixed.
3335 - Retransmitted segments now contain the correct acknowledgment
3336 number and advertised window.
3338 - TCP retransmission timeout backoffs are not correctly computed
3339 (ala BSD). After a number of retransmissions, TCP now gives up
3342 * TCP connections now are kept on three lists, one for active
3343 connections, one for listening connections, and one for
3344 connections that are in TIME-WAIT. This greatly speeds up the fast
3345 timeout processing for sending delayed ACKs.
3347 * TCP now provides proper feedback to the application when a
3348 connection has been successfully set up.
3350 * More comments have been added to the code. The code has also been
3351 somewhat cleaned up.
3353 (0.2) Initial public release.