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 2012-05-08: Simon Goldschmidt
84 * tcp_out.c: fixed bug: #36380 unsent_oversize mismatch in 1.4.1RC1 (this was
85 a debug-check issue only)
87 2012-05-03: Simon Goldschmidt (patch by Sylvain Rochet)
88 * ppp.c: fixed bug #36283 (PPP struct used on header size computation and
91 2012-05-03: Simon Goldschmidt (patch by David Empson)
92 * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with
95 2012-03-27: Simon Goldschmidt
96 * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
98 2012-03-27: Simon Goldschmidt (patch by Mason)
99 * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
102 2012-03-25: Simon Goldschmidt
103 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
104 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
106 2012-03-25: Simon Goldschmidt
107 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
108 pollution in api_msg.c and netifapi.c
110 2012-03-22: Simon Goldschmidt
111 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
113 2012-03-20: Simon Goldschmidt (patch by Mason)
114 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
116 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
117 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
118 possible bug on little endian system
120 2012-02-23: Simon Goldschmidt
121 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
122 (introduced when fixing bug# 33551)
124 2012-02-16: Simon Goldschmidt
125 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
126 (bug #35541: PPP Memory Leak)
128 2012-02-16: Simon Goldschmidt
129 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
130 (introduced when fixing bug# 33551)
132 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
133 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
135 2012-02-15: Simon Goldschmidt
136 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
139 2012-02-12: Simon Goldschmidt
140 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
141 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
143 2012-02-11: Simon Goldschmidt
144 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
147 2012-01-22: Simon Goldschmidt
148 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
150 2012-01-21: Simon Goldschmidt
151 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
153 2012-01-20: Simon Goldschmidt
154 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
156 2012-01-20: Simon Goldschmidt
157 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
159 2011-11-25: Simon Goldschmidt
160 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
161 tcp_active_pcbs in some cases
163 2011-11-23: Simon Goldschmidt
164 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
167 2011-11-22: Simon Goldschmidt
168 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
169 netif is brought down
171 2011-10-28: Simon Goldschmidt
172 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
174 2011-10-23: Simon Goldschmidt
175 * mem.c: fixed bug #34429: possible memory corruption with
176 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
178 2011-10-18: Simon Goldschmidt
179 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
182 2011-10-18: Simon Goldschmidt
183 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
184 windows (bug #34176 select after non-blocking send times out)
186 2011-10-18: Simon Goldschmidt
187 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
188 consider netif->mtu, causes slow network
190 2011-10-18: Simon Goldschmidt
191 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
193 2011-10-18: Simon Goldschmidt
194 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
196 2011-10-17: Simon Goldschmidt
197 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
199 2011-10-13: Simon Goldschmidt
200 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
201 zero window is received) by starting the persist timer when a zero window is
202 received, not when we have more data queued for sending than fits into the
205 2011-10-13: Simon Goldschmidt
206 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
208 2011-10-13: Simon Goldschmidt
209 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
210 used and not all protocols are enabled
212 2011-10-12: Simon Goldschmidt
213 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
215 2011-10-09: Simon Goldschmidt
216 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
217 byte value when pcb->unacked != NULL
219 2011-10-09: Simon Goldschmidt
220 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
222 2011-09-27: Simon Goldschmidt
223 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
225 2011-09-27: Simon Goldschmidt
226 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
228 2011-09-27: Simon Goldschmidt
229 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
231 2011-09-24: Simon Goldschmidt
232 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
234 2011-09-23: Simon Goldschmidt
235 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
236 the last packet including FIN can lose data
238 2011-09-22: Simon Goldschmidt
239 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
242 2011-09-21: Simon Goldschmidt
243 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
246 2011-09-20: Simon Goldschmidt
247 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
249 2011-09-11: Simon Goldschmidt
250 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
253 2011-09-09: Simon Goldschmidt
254 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
257 2011-09-03: Simon Goldschmidt
258 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
259 is aggregated and sent to application
261 2011-09-01: Simon Goldschmidt
262 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
265 2011-09-01: Simon Goldschmidt
266 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
268 2011-08-24: Simon Goldschmidt
269 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
271 2011-08-24: Simon Goldschmidt
272 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
273 accept() on UDP connections
275 2011-08-24: Simon Goldschmidt
276 * sockets.h: fixed bug #34057 socklen_t should be a typedef
278 2011-08-24: Simon Goldschmidt
279 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
281 2011-08-24: Simon Goldschmidt
282 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
284 2011-08-24: Simon Goldschmidt
285 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
287 2011-08-22: Simon Goldschmidt
288 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
289 merely prevents nagle from not transmitting fast after closing.)
291 2011-07-22: Simon Goldschmidt
292 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
293 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
294 lwip_send() sends as much as possible for non-blocking sockets
296 2011-07-22: Simon Goldschmidt
297 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
298 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
299 at regular intervals from main level.
301 2011-07-21: Simon Goldschmidt
302 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
303 sending an ARP request when an ARP entry is used in the last minute before
306 2011-07-04: Simon Goldschmidt
307 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
309 2011-06-26: Simon Goldschmidt
310 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
311 updating its documentation only.
313 2011-06-26: Simon Goldschmidt
314 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
317 2011-06-26: Simon Goldschmidt
318 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
326 2011-03-27: Simon Goldschmidt
327 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
328 calculate it in tcp_zero_window_probe (the only place where it was used).
330 2010-11-21: Simon Goldschmidt
331 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
334 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
335 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
336 IP_MULTICAST_LOOP at socket- and raw-API level.
338 2010-06-16: Simon Goldschmidt
339 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
340 link-layer-addressed UDP traffic to be received while a netif is down (just
341 like DHCP during configuration)
343 2010-05-22: Simon Goldschmidt
344 * many many files: bug #27352: removed packing from ip_addr_t, the packed
345 version is now only used in protocol headers. Added global storage for
346 current src/dest IP address while in input functions.
348 2010-05-16: Simon Goldschmidt
349 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
350 calculation (and use them throughout the stack where applicable)
352 2010-05-16: Simon Goldschmidt
353 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
354 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
356 2010-05-16: Simon Goldschmidt
357 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
358 MEMP pool instead of the heap
360 2010-05-13: Simon Goldschmidt
361 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
362 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
363 packets to more than one pcb.
365 2010-05-02: Simon Goldschmidt
366 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
367 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
369 2010-04-30: Simon Goldschmidt
370 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
371 take a precalculated checksum, added pbuf_fill_chksum() to copy data
372 into a pbuf and at the same time calculating the checksum for that data
374 2010-04-29: Simon Goldschmidt
375 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
376 2-byte-aligned IP addresses and MAC addresses
378 2010-04-28: Patch by Bill Auerbach
379 * ip.c: Inline generating IP checksum to save a function call
381 2010-04-14: Simon Goldschmidt
382 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
383 tcpip_thread processes messages or timeouts to implement a watchdog.
385 2010-03-28: Simon Goldschmidt
386 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
387 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
389 2010-03-27: Simon Goldschmidt
390 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
391 etharp_query to prevent unnecessary function calls (inspired by
394 2010-03-20: Simon Goldschmidt
395 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
396 since the linker cannot do this automatically to save space.
398 2010-03-20: Simon Goldschmidt
399 * opt.h, etharp.c/.h: Added support for static ARP table entries
401 2010-03-14: Simon Goldschmidt
402 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
403 when creating TCP segments, not when (re-)transmitting them.
405 2010-03-07: Simon Goldschmidt
406 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
407 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
408 This should speed up receiving data on sockets as the select code in
409 event_callback is only executed when select is waiting.
411 2010-03-06: Simon Goldschmidt
412 * tcp_out.c: task #7013 (Create option to have all packets delivered to
413 netif->output in one piece): Always copy to try to create single pbufs
416 2010-03-06: Simon Goldschmidt
417 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
418 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
419 for tcp netconns to receive pbufs, not netbufs; use that function
422 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
423 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
424 Work on tcp_enqueue: Don't waste memory when chaining segments,
425 added option TCP_OVERSIZE to prevent creating many small pbufs when
426 calling tcp_write with many small blocks of data. Instead, pbufs are
427 allocated larger than needed and the space is used for later calls to
430 2010-02-21: Simon Goldschmidt
431 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
434 2010-02-21: Simon Goldschmidt
435 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
436 implementation of tcp to make API usage cleare to application programmers
438 2010-02-14: Simon Goldschmidt/Stephane Lesage
439 * ip_addr.h: Improved some defines working on ip addresses, added faster
440 macro to copy addresses that cannot be NULL
442 2010-02-13: Simon Goldschmidt
443 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
444 blocking send operation)
446 2010-02-12: Simon Goldschmidt
447 * sockets.c/.h: Added a minimal version of posix fctl() to have a
448 standardised way to set O_NONBLOCK for nonblocking sockets.
450 2010-02-12: Simon Goldschmidt
451 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
452 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
453 and dhcp work with user-allocated structs instead of callin mem_malloc
455 2010-02-12: Simon Goldschmidt/Jeff Barber
456 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
457 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
459 2010-02-12: Simon Goldschmidt
460 * sys layer: task #10139 (Prefer statically allocated memory): converted
461 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
462 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
463 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
464 to let sys.h use binary semaphores instead of mutexes - as before)
466 2010-02-09: Simon Goldschmidt (Simon Kallweit)
467 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
468 (Restart system timeout handling)
470 2010-02-09: Simon Goldschmidt
471 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
472 netif.c) - loopif does not have to be created by the port any more,
473 just define LWIP_HAVE_LOOPIF to 1.
475 2010-02-08: Simon Goldschmidt
476 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
477 inet_ntoa_r/ipaddr_ntoa_r
479 2010-02-08: Simon Goldschmidt
480 * netif.h: Added netif_s/get_igmp_mac_filter() macros
482 2010-02-05: Simon Goldschmidt
483 * netif.h: Added function-like macros to get/set the hostname on a netif
485 2010-02-04: Simon Goldschmidt
486 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
487 make changing the actual implementation behind the typedef easier.
489 2010-02-01: Simon Goldschmidt
490 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
491 for allocating memory when getaddrinfo() is called.
493 2010-01-31: Simon Goldschmidt
494 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
495 them once instead of parsing for every option. This also removes
496 the need for mem_malloc from dhcp_recv and makes it possible to
497 correctly retrieve the BOOTP file.
499 2010-01-30: simon Goldschmidt
500 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
503 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
504 * api.h, api_msg.c, sockets.c: Added except set support in select
507 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
508 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
509 Add non-blocking support for connect (partly from patch #6860),
510 plus many cleanups in socket & netconn API.
512 2010-01-27: Simon Goldschmidt
513 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
514 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
516 2010-01-26: Simon Goldschmidt
517 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
519 2010-01-14: Simon Goldschmidt
520 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
521 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
523 2010-01-13: Simon Goldschmidt
524 * mem.c: The heap now may be moved to user-defined memory by defining
525 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
526 (patch #6966 and bug #26133)
528 2010-01-10: Simon Goldschmidt (Bill Auerbach)
529 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
532 2010-01-10: Simon Goldschmidt
533 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
534 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
536 2009-12-31: Simon Goldschmidt
537 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
538 added timers.c/.h: Separated timer implementation from semaphore/mbox
539 implementation, moved timer implementation to timers.c/.h, timers are
540 now only called from tcpip_thread or by explicitly checking them.
543 2009-12-27: Simon Goldschmidt
544 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
545 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
550 2011-04-20: Simon Goldschmidt
551 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
553 2011-04-13: Simon Goldschmidt
554 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
555 using ports in the IANA private/dynamic range (49152 through 65535).
557 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
558 * etharp.h/.c: Fixed broken VLAN support.
560 2011-03-27: Simon Goldschmidt
561 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
562 pcbs) by checking if the pcb was bound (local_port != 0).
564 2011-03-27: Simon Goldschmidt
565 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
567 2011-03-27: Simon Goldschmidt
568 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
569 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
571 2011-03-27: Simon Goldschmidt
572 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
573 is present never times out) by starting retransmission timer before checking
576 2011-03-22: Simon Goldschmidt
577 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
578 calling sio_read_abort() if the file descriptor is valid.
580 2011-03-14: Simon Goldschmidt
581 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
582 more than once can render a socket useless) since it mainly involves changing
583 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
585 2011-03-13: Simon Goldschmidt
586 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
587 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
588 use EALRADY instead of -1
590 2011-03-13: Simon Goldschmidt
591 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
592 connection has been aborted by err_tcp (since this is not a normal closing
595 2011-03-13: Simon Goldschmidt
596 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
597 with pcb->state != CLOSED
599 2011-02-17: Simon Goldschmidt
600 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
603 2011-02-17: Simon Goldschmidt
604 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
606 2011-01-24: Simon Goldschmidt
607 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
609 2010-12-02: Simon Goldschmidt
610 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
612 2010-11-23: Simon Goldschmidt
613 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
614 LWIP_SO_RCVBUF and ioctl/FIONREAD.
616 2010-11-23: Simon Goldschmidt
617 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
618 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
620 2010-11-23: Simon Goldschmidt
621 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
622 refusing 'refused_data' again.
624 2010-11-22: Simon Goldschmidt
625 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
626 after a successful nonblocking connection.
628 2010-11-22: Simon Goldschmidt
629 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
630 must be sent link-local
632 2010-11-22: Simon Goldschmidt
633 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
636 2010-11-20: Simon Goldschmidt
637 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
639 2010-11-20: Simon Goldschmidt
640 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
641 resemble other stacks.
643 2010-11-20: Simon Goldschmidt
644 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
645 no-copy TCP writes will never succeed.
647 2010-11-20: Simon Goldschmidt
648 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
649 not match documentation: return ERR_ARG instead of ERR_VAL if not
650 initialized or wrong argument.
652 2010-10-20: Simon Goldschmidt
653 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
655 2010-10-05: Simon Goldschmidt
656 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
657 replugging the network cable after an AutoIP address was assigned.
659 2010-08-10: Simon Goldschmidt
660 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
662 2010-08-03: Simon Goldschmidt
663 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
665 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
666 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
667 endian architectures)
669 2010-07-28: Simon Goldschmidt
670 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
673 2010-07-27: Simon Goldschmidt
674 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
675 harm but never did anything
677 2010-07-21: Simon Goldschmidt
678 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
681 2010-07-16: Kieran Mansley
682 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
684 2010-07-10: Simon Goldschmidt
685 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
687 2010-06-30: Simon Goldschmidt
688 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
691 2010-06-28: Kieran Mansley
692 * timers.c remove unportable printing of C function pointers
694 2010-06-24: Simon Goldschmidt
695 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
696 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
698 2010-06-24: Simon Goldschmidt
699 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
700 implemented shutdown at socket level.
702 2010-06-21: Simon Goldschmidt
703 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
704 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
705 custom pbufs that reference other (original) pbufs. Additionally set
706 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
708 2010-06-15: Simon Goldschmidt
709 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
711 2010-06-14: Simon Goldschmidt
712 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
714 2010-06-12: Simon Goldschmidt
715 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
718 2010-05-17: Simon Goldschmidt
719 * netdb.c: Correctly NULL-terminate h_addr_list
721 2010-05-16: Simon Goldschmidt
722 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
723 "symbol already defined" i.e. when linking to winsock
725 2010-05-05: Simon Goldschmidt
726 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
729 2010-04-21: Simon Goldschmidt
730 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
733 2010-03-28: Luca Ceresoli
734 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
736 2010-03-27: Luca Ceresoli
737 * mib2.c: patch #7130: remove meaningless const qualifiers
739 2010-03-26: Simon Goldschmidt
740 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
742 2010-03-26: Simon Goldschmidt
743 * various files: Fixed compiling with different options disabled (TCP/UDP),
744 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
746 2010-03-25: Simon Goldschmidt
747 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
749 2010-03-25: Simon Goldschmidt
750 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
751 overrunning our rcv_wnd in ooseq case.
753 2010-03-22: Simon Goldschmidt
754 * tcp.c: tcp_listen() did not copy the pcb's prio.
756 2010-03-19: Simon Goldschmidt
757 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
759 2010-03-14: Simon Goldschmidt
760 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
761 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
762 and basing PBUF_LINK_HLEN on it.
764 2010-03-08: Simon Goldschmidt
765 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
766 when assiging routable address): when checking incoming packets and
767 aborting existing connection on address change, filter out link-local
770 2010-03-06: Simon Goldschmidt
771 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
773 2010-03-06: Simon Goldschmidt
774 * ipv4/ip.c: Don't try to forward link-local addresses
776 2010-03-06: Simon Goldschmidt
777 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
780 2010-03-05: Simon Goldschmidt
781 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
784 2010-03-05: Simon Goldschmidt
785 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
786 into multiple calls to tcp_write.
788 2010-02-21: Simon Goldschmidt
789 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
790 the implementation of DNS_USES_STATIC_BUF==1)
792 2010-02-20: Simon Goldschmidt
793 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
794 close() vs. shutdown(). Now the application does not get any more
795 recv callbacks after calling tcp_close(). Added tcp_shutdown().
797 2010-02-19: Simon Goldschmidt
798 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
799 confusion with realloc()
801 2010-02-15: Simon Goldschmidt/Stephane Lesage
802 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
805 2010-02-14: Simon Goldschmidt
806 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
807 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
808 admin-status of a netif are up
810 2010-02-14: Simon Goldschmidt
811 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
812 reception and is not really necessary
814 2010-02-14: Simon Goldschmidt
815 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
816 request was directed as us (RFC 826, Packet Reception), otherwise
817 only update existing entries; internalized some functions
819 2010-02-14: Simon Goldschmidt
820 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
821 disabled on netif used for PPPoE) by adding a new netif flag
822 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
823 device but prevents usage of ARP (so that ethernet_input can be used
826 2010-02-12: Simon Goldschmidt
827 * netif.c: netif_set_link_up/down: only do something if the link state
830 2010-02-12: Simon Goldschmidt/Stephane Lesage
831 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
834 2010-02-12: Simon Goldschmidt
835 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
837 2010-02-09: Simon Goldschmidt
838 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
839 (recv() makes receive window update for data that wasn't received by
842 2010-02-09: Simon Goldschmidt/Stephane Lesage
843 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
844 or any netconn_recv() error)
846 2010-02-09: Simon Goldschmidt
847 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
849 2010-02-09: Simon Goldschmidt
850 * netif.c: For loopback packets, adjust the stats- and snmp-counters
851 for the loopback netif.
853 2010-02-08: Simon Goldschmidt
854 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
855 since they are not used anywhere else.
857 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
858 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
859 (patch from bug #28798)
861 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
862 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
863 another bug when LWIP_RAND() returns zero.
865 2010-02-04: Simon Goldschmidt
866 * nearly every file: Use macros defined in ip_addr.h (some of them new)
867 to work with IP addresses (preparation for bug #27352 - Change ip_addr
868 from struct to typedef (u32_t) - and better code).
870 2010-01-31: Simon Goldschmidt
871 * netif.c: Don't call the link-callback from netif_set_up/down() since
872 this invalidly retriggers DHCP.
874 2010-01-29: Simon Goldschmidt
875 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
876 portability file inet.h and its contents from the stack: moved htonX-
877 functions to def.h (and the new def.c - they are not ipv4 dependent),
878 let inet.h depend on ip_addr.h and not the other way round.
879 This fixes bug #28732.
881 2010-01-28: Kieran Mansley
882 * tcp.c: Ensure ssthresh >= 2*MSS
884 2010-01-27: Simon Goldschmidt
885 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
886 callback can lead to accessing unallocated memory. As a consequence,
887 ERR_ABRT means the application has called tcp_abort()!
889 2010-01-25: Simon Goldschmidt
890 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
891 not implemented in SNMP): write-only or not-accessible are still
892 returned by getnext (though not by get)
894 2010-01-24: Simon Goldschmidt
895 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
896 not use reserved C/C++ keywords
898 2010-01-23: Simon Goldschmidt
899 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
902 2010-01-21: Simon Goldschmidt
903 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
904 if tcp_enqueue fails) both in raw- and netconn-API
906 2010-01-19: Simon Goldschmidt
907 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
909 2010-01-18: Iordan Neshev/Simon Goldschmidt
910 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
911 bugfix backports from 2.4.x.
913 2010-01-18: Simon Goldschmidt
914 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
916 2010-01-17: Simon Goldschmidt
917 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
918 task #10102: "netconn: clean up conn->err threading issues" by adding
919 error return value to struct api_msg_msg
921 2010-01-17: Simon Goldschmidt
922 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
923 to return err_t (bugs #27709 and #28087)
925 2010-01-14: Simon Goldschmidt
926 * ...: Use typedef for function prototypes throughout the stack.
928 2010-01-13: Simon Goldschmidt
929 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
930 window = 0) by correctly draining recvmbox/acceptmbox
932 2010-01-11: Simon Goldschmidt
933 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
934 erroneous callbacks) by copying the code from recent pppd
936 2010-01-10: Simon Goldschmidt
937 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
939 2010-01-10: Simon Goldschmidt
940 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
942 2010-01-08: Simon Goldschmidt
943 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
945 2010-01-08: Simon Goldschmidt
946 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
947 passed to dns_local_addhost() might be volatile
949 2010-01-07: Simon Goldschmidt
950 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
952 2010-01-06: Simon Goldschmidt
953 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
955 2009-12-31: Simon Goldschmidt
956 * many ppp files: Reorganised PPP source code from ucip structure to pppd
957 structure to easily compare our code against the pppd code (around v2.3.1)
959 2009-12-27: Simon Goldschmidt
960 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
968 2009-10-27 Simon Goldschmidt/Stephan Lesage
969 * netifapi.c/.h: Added netifapi_netif_set_addr()
971 2009-10-07 Simon Goldschmidt/Fabian Koch
972 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
973 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
975 2009-08-26 Simon Goldschmidt/Simon Kallweit
976 * slipif.c/.h: bug #26397: SLIP polling support
978 2009-08-25 Simon Goldschmidt
979 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
980 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
982 2009-08-25 Simon Goldschmidt
983 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
985 2009-08-24 Jakob Stoklund Olesen
986 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
987 to netif_set_link_up().
989 2009-08-23 Simon Goldschmidt
990 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
991 to a human-readable string.
995 2009-12-24: Kieran Mansley
996 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
999 2009-12-06: Simon Goldschmidt
1000 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
1001 be statically allocated (like in ucip)
1003 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
1004 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
1006 2009-12-03: Simon Goldschmidt
1007 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
1008 could have non-zero length
1010 2009-12-02: Simon Goldschmidt
1011 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
1012 tcp_input_pcb until after calling the pcb's callbacks
1014 2009-11-29: Simon Goldschmidt
1015 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
1016 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
1018 2009-11-29: Simon Goldschmidt
1019 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1020 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1022 2009-11-26: Simon Goldschmidt
1023 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1026 2009-11-26: Simon Goldschmidt
1027 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1028 algorithm at PCB level
1030 2009-11-22: Simon Goldschmidt
1031 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1033 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1034 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1035 reusing time-wait pcb
1037 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1038 * sockets.c: Fixed bug #28062: Data received directly after accepting
1039 does not wake up select
1041 2009-11-11: Simon Goldschmidt
1042 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1044 2009-10-30: Simon Goldschmidt
1045 * opt.h: Increased default value for TCP_MSS to 536, updated default
1046 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1048 2009-10-28: Kieran Mansley
1049 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1050 to follow algorithm from TCP/IP Illustrated
1052 2009-10-27: Kieran Mansley
1053 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1055 2009-10-25: Simon Goldschmidt
1056 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1057 pcb->recv is NULL to keep rcv_wnd correct)
1059 2009-10-25: Simon Goldschmidt
1060 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1062 2009-10-23: Simon Goldschmidt (David Empson)
1063 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1065 2009-10-21: Simon Goldschmidt
1066 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1067 trailing 1 byte len (SYN/FIN)
1069 2009-10-21: Simon Goldschmidt
1070 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1072 2009-10-19: Simon Goldschmidt
1073 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1074 conditional code to assert where applicable), check pbuf length before
1075 testing for valid reply
1077 2009-10-19: Simon Goldschmidt
1078 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1079 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1081 2009-10-16: Simon Goldschmidt
1082 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1083 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1086 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1087 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1089 2009-10-15: Simon Goldschmidt
1090 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1093 2009-10-15: Simon Goldschmidt
1094 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1095 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1096 of network byte order
1098 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1099 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1100 which are not consecutive when retransmitting unacked segments
1102 2009-10-09 Simon Goldschmidt
1103 * opt.h: Fixed default values of some stats to only be enabled if used
1104 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1106 2009-08-30 Simon Goldschmidt
1107 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1108 function" by checking for loopback before calling ip_frag
1110 2009-08-25 Simon Goldschmidt
1111 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1113 2009-08-23 Simon Goldschmidt
1114 * ppp.c: bug #27078: Possible memory leak in pppInit()
1116 2009-08-23 Simon Goldschmidt
1117 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1120 2009-08-23 Simon Goldschmidt
1121 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1122 Fixed wrong parenthesis, added check in init.c
1124 2009-08-23 Simon Goldschmidt
1125 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1127 2009-08-23 Simon Goldschmidt
1128 * many ppp files: bug #27267: Added include to string.h where needed
1130 2009-08-23 Simon Goldschmidt
1131 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1138 2009-05-10 Simon Goldschmidt
1139 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1140 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1141 one pbuf to help MACs that don't support scatter-gather DMA.
1143 2009-05-09 Simon Goldschmidt
1144 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1145 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1147 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1148 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1149 extended info about the currently received packet.
1151 2009-04-27 Simon Goldschmidt
1152 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1154 2009-04-25 Simon Goldschmidt
1155 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1156 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1158 2009-04-21 Simon Goldschmidt
1159 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1160 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1161 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1162 as an external function for lookup.
1164 2009-04-15 Simon Goldschmidt
1165 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1167 2009-03-31 Kieran Mansley
1168 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1169 TCP timestamp options, off by default. Rework tcp_enqueue() to
1170 take option flags rather than specified option data
1172 2009-02-18 Simon Goldschmidt
1173 * cc.h: Added printf formatter for size_t: SZT_F
1175 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1176 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1179 2009-02-12 Simon Goldschmidt
1180 * init.h: Added LWIP_VERSION to get the current version of the stack
1182 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1183 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1184 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1187 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1188 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1189 is only used by UDPLITE at present, so conditionalise it.
1191 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1192 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1193 "seed" address. This should reduce AUTOIP conflicts if
1194 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1196 2008-10-02 Jonathan Larmour and Rishi Khan
1197 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1200 2008-06-30 Simon Goldschmidt
1201 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1202 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1203 mem_free to run between mem_malloc iterations. Added illegal counter for
1206 2008-06-27 Simon Goldschmidt
1207 * stats.h/.c, some other files: patch #6483: stats module improvement:
1208 Added defines to display each module's statistic individually, added stats
1209 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1211 2008-06-17 Simon Goldschmidt
1212 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1213 (define LWIP_ERR_T in cc.h)
1215 2008-06-17 Simon Goldschmidt
1216 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1219 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1220 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1221 modified version of patch # 6370: Moved loopif code to netif.c so that
1222 loopback traffic is supported on all netifs (all local IPs).
1223 Added option to limit loopback packets for each netifs.
1227 2009-08-12 Kieran Mansley
1228 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1229 out of window or out of order properly
1231 2009-08-12 Kieran Mansley
1232 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1234 2009-07-28 Simon Goldschmidt
1235 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1237 2009-07-27 Kieran Mansley
1238 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1240 2009-07-09 Kieran Mansley
1241 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1242 recv_avail and don't increment counters until message successfully
1245 2009-06-25 Kieran Mansley
1246 * api_msg.c api.h: BUG26722: initialise netconn write variables
1249 2009-06-25 Kieran Mansley
1250 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1252 2009-06-25 Kieran Mansley
1253 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1254 simultaneous close behaviour, and make snd_nxt have the same meaning
1257 2009-05-12 Simon Goldschmidt
1258 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1259 arp_table / uses etharp_query" by adding etharp_gratuitous()
1261 2009-05-12 Simon Goldschmidt
1262 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1263 to the IP header (used by igmp_ip_output_if)
1265 2009-05-06 Simon Goldschmidt
1266 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1267 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1269 2009-05-05 Simon Goldschmidt
1270 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1273 2009-05-04 Simon Goldschmidt
1274 * init.c: snmp was not initialized in lwip_init()
1276 2009-05-04 Frédéric Bernon
1277 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1279 2009-05-03 Simon Goldschmidt
1280 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1281 (and unsent->next == NULL)
1283 2009-05-02 Simon Goldschmidt
1284 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1285 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1287 2009-05-02 Simon Goldschmidt
1288 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1290 2009-05-01 Simon Goldschmidt
1291 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1293 2009-05-01 Simon Goldschmidt
1294 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1296 2009-04-29 Frédéric Bernon
1297 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1298 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1299 of broadcast packets even when this option wasn't set. Port maintainers
1300 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1301 If you want this option also filter broadcast on recv operations, you also
1302 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1304 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1305 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1306 DHCP/AUTOIP cooperation
1308 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1309 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1310 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1311 right place in tcp_output and tcp_rexmit).
1313 2009-04-25 Simon Goldschmidt
1314 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1315 when debugging": memp_sizes contained the wrong sizes (including sanity
1316 regions); memp pools for MEM_USE_POOLS were too small
1318 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1319 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1320 behavior, with with ip address string not ended by a '\0', a space or a
1323 2009-04-19 Simon Goldschmidt
1324 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1325 pcb->err is called, not pcb->connected (with an error code).
1327 2009-04-19 Simon Goldschmidt
1328 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1329 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1331 2009-04-19 Simon Goldschmidt
1332 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1333 in the header pbuf, not the data pbuf)
1335 2009-04-18 Simon Goldschmidt
1336 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1338 2009-04-15 Simon Goldschmidt
1339 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1341 2009-04-15 Simon Goldschmidt
1342 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1344 2009-04-15 Simon Goldschmidt
1345 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1346 ip_hinted_output() (for smaller code mainly)
1348 2009-04-15 Simon Goldschmidt
1349 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1351 2009-04-15 Simon Goldschmidt
1352 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1353 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1354 is big enough in dhcp_start
1356 2009-04-15 Simon Goldschmidt
1357 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1359 2009-04-15 Simon Goldschmidt
1360 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1362 2009-04-15 Simon Goldschmidt
1363 * sockets.c: bug #26121: set_errno can be overridden
1365 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1366 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1369 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1370 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1373 2009-03-31 Kieran Mansley
1374 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1375 updates are calculated and sent (BUG20515)
1377 * tcp_in.c: cope with SYN packets received during established states,
1378 and retransmission of initial SYN.
1380 * tcp_out.c: set push bit correctly when tcp segments are merged
1382 2009-03-27 Kieran Mansley
1383 * tcp_out.c set window correctly on probes (correcting change made
1386 2009-03-26 Kieran Mansley
1387 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1388 connections where no reset required (bug #25622)
1390 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1393 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1394 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1395 too small depending on MEM_ALIGNMENT
1397 2009-02-16 Simon Goldschmidt
1398 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1399 converted size argument of netconn_write to 'size_t'
1401 2009-02-16 Simon Goldschmidt
1402 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1403 by moving accept callback function pointer to TCP_PCB_COMMON
1405 2009-02-12 Simon Goldschmidt
1406 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1409 2009-02-11 Simon Goldschmidt
1410 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1412 2009-02-11 Simon Goldschmidt
1413 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1414 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1416 2009-02-10 Simon Goldschmidt
1417 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1418 Accepts_pending is decrease on a corresponding listen pcb when a connection
1419 in state SYN_RCVD is close.
1421 2009-01-28 Jonathan Larmour
1422 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1425 2008-12-19 Simon Goldschmidt
1426 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1428 2008-12-10 Tamas Somogyi, Frédéric Bernon
1429 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1430 port uses deleted netbuf.
1432 2008-10-18 Simon Goldschmidt
1433 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1436 2008-10-15 Simon Goldschmidt
1437 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1438 by packing the struct ip_reass_helper.
1440 2008-10-03 David Woodhouse, Jonathan Larmour
1441 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1443 2008-10-02 Jonathan Larmour
1444 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1445 padding is included.
1447 2008-09-30 Jonathan Larmour
1448 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1449 assertion check that addrlen isn't NULL.
1451 2008-09-30 Jonathan Larmour
1452 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1454 2008-08-26 Simon Goldschmidt
1455 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1456 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1458 2008-08-14 Simon Goldschmidt
1459 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1460 tcp_close returns != ERR_OK)
1462 2008-07-08 Frédéric Bernon
1463 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1464 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1466 2008-06-24 Jonathan Larmour
1467 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1468 if tcp_seg_copy fails.
1470 2008-06-17 Simon Goldschmidt
1471 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1472 and created defines for swapping bytes and folding u32 to u16.
1474 2008-05-30 Kieran Mansley
1475 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1476 rather than rcv_ann_wnd when deciding if packets are in-window.
1477 Contributed by <arasmussen@consultant.datasys.swri.edu>
1479 2008-05-30 Kieran Mansley
1480 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1481 passing as function pointers when MEM_LIBC_MALLOC is defined.
1483 2008-05-09 Jonathan Larmour
1484 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1485 stop it being treated as a fatal error.
1487 2008-04-15 Simon Goldschmidt
1488 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1491 2008-03-27 Simon Goldschmidt
1492 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1493 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1494 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1495 or heap memory from interrupt context
1497 2008-03-26 Simon Goldschmidt
1498 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1499 host sent a zero mss as TCP option.
1506 2008-03-10 Jonathan Larmour
1507 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1508 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1510 2008-01-22 Frédéric Bernon
1511 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1512 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1514 2008-01-14 Frédéric Bernon
1515 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1516 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1517 tcp_recv callback (see rawapi.txt).
1519 2008-01-14 Frédéric Bernon, Marc Chaland
1520 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1522 2008-01-12 Frédéric Bernon
1523 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1524 netconn::sem per netconn::op_completed like suggested for the task #7490
1525 "Add return value to sys_mbox_post".
1527 2008-01-12 Frédéric Bernon
1528 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1529 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1530 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1532 2008-01-10 Frédéric Bernon
1533 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1534 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1535 "blocking" ("block" parameter = 1).
1537 2008-01-10 Frédéric Bernon
1538 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1539 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1540 "Add return value to sys_mbox_post".
1542 2008-01-05 Frédéric Bernon
1543 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1544 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1545 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1546 indicate the number of pointers query by the mailbox. There is three defines
1547 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1548 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1549 parameter in your implementation, but to ignore it to keep the previous behavior.
1550 The new sys_mbox_trypost function return a value to know if the mailbox is
1551 full or if the message is posted. Take a look to sys_arch.txt for more details.
1552 This new function is used in tcpip_input (so, can be called in an interrupt
1553 context since the function is not blocking), and in recv_udp and recv_raw.
1555 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1556 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1557 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1558 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1559 documentation in the rawapi.txt file.
1561 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1562 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1564 2007-12-31 Frédéric Bernon, Luca Ceresoli
1565 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1566 in autoip". The change in etharp_raw could be removed, since all calls to
1567 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1568 wrong in the future.
1570 2007-12-30 Frédéric Bernon, Tom Evans
1571 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1572 Filtering" reported by Tom Evans.
1574 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1575 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1576 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1577 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1578 keep accepting new connections.
1580 2007-12-13 Frédéric Bernon
1581 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1582 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1584 2007-12-12 Frédéric Bernon
1585 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1586 are the one which have ram usage.
1588 2007-12-05 Frédéric Bernon
1589 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1590 set of variables (=0) or a local one (=1). In this last case, your port should
1591 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1592 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1594 2007-12-03 Simon Goldschmidt
1595 * ip.c: ip_input: check if a packet is for inp first before checking all other
1596 netifs on netif_list (speeds up packet receiving in most cases)
1598 2007-11-30 Simon Goldschmidt
1599 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1600 UDP: move a (connected) pcb selected for input to the front of the list of
1601 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1604 2007-11-28 Simon Goldschmidt
1605 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1607 2007-11-25 Simon Goldschmidt
1608 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1611 2007-11-24 Simon Goldschmidt
1612 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1613 to the new file netdb.c; included lwip_getaddrinfo.
1615 2007-11-21 Simon Goldschmidt
1616 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1617 based on the MTU of the netif used to send. Enabled by default. Disable by
1618 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1620 2007-11-19 Frédéric Bernon
1621 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1622 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1623 copy dns payload to parse the response), return an error if there is no place
1624 for a new query, and fix some minor problems.
1626 2007-11-16 Simon Goldschmidt
1627 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1628 removed files: core/inet.c, core/inet6.c
1629 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1630 inet and chksum part; changed includes in all lwIP files as appropriate
1632 2007-11-16 Simon Goldschmidt
1633 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1634 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1635 (gethostbyname/gethostbyname_r).
1637 2007-11-15 Jim Pettinato, Frédéric Bernon
1638 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1639 requests with RAW api interface. Initialization is done in lwip_init() with
1640 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1641 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1642 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1643 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1644 list with points to improve.
1646 2007-11-06 Simon Goldschmidt
1647 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1648 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1649 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1651 2007-11-06 Simon Goldschmidt
1652 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1653 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1654 implementation from netconn api applications.
1656 2007-11-03 Frédéric Bernon
1657 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1658 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1659 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1660 it. This is a first release which have to be improve for TCP. Note it used the
1661 netconn::recv_avail which need to be more "thread-safe" (note there is already
1662 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1664 2007-11-01 Frédéric Bernon, Marc Chaland
1665 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1666 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1667 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1668 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1669 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1671 2007-10-24 Frédéric Bernon
1672 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1673 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1674 some code (like we have talk in "patch #5919 : Create compile switch to remove
1675 select code"), but it could be done later.
1677 2007-10-08 Simon Goldschmidt
1678 * many files: Changed initialization: many init functions are not needed any
1679 more since we now rely on the compiler initializing global and static
1682 2007-10-06 Simon Goldschmidt
1683 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1684 to enqueue the received pbufs so that multiple packets can be reassembled
1685 simultaneously and no static reassembly buffer is needed.
1687 2007-10-05 Simon Goldschmidt
1688 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1689 all netifs (or ports) can use it.
1691 2007-10-05 Frédéric Bernon
1692 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1693 common function to reduce a little bit the footprint (for all functions using
1694 only the "netif" parameter).
1696 2007-10-03 Frédéric Bernon
1697 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1698 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1699 a little bit the footprint (for all functions using only the "netif" parameter).
1701 2007-09-15 Frédéric Bernon
1702 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1703 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1704 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1705 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1707 2007-09-10 Frédéric Bernon
1708 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1709 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1710 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1711 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1712 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1713 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1714 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1715 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1716 when it's queried (any direct call to "sysuptime" is changed by a call to
1717 snmp_get_sysuptime).
1719 2007-09-09 Frédéric Bernon, Bill Florac
1720 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1721 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1722 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1723 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1724 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1725 the next query message to receive the matching multicast streams).
1727 2007-09-08 Frédéric Bernon
1728 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1729 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1730 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1731 Enable to access to these fields with LWIP_TCP=0.
1733 2007-09-05 Frédéric Bernon
1734 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1735 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1736 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1737 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1738 help to reduce footprint, and to reduce "visibility" on the Internet.
1740 2007-09-05 Frédéric Bernon, Bill Florac
1741 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1742 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1743 parameters have to be provided: a task name, and a task stack size. For this
1744 one, since it's platform dependant, you could define the best one for you in
1745 your lwipopts.h. For port maintainers, you can just add these new parameters
1746 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1749 2007-09-05 Frédéric Bernon
1750 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1751 inside init.c for task #7142 "Sanity check user-configurable values".
1753 2007-09-04 Frédéric Bernon, Bill Florac
1754 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1755 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1756 value). It will avoid potential fragmentation problems, use a counter to know
1757 how many times a group is used on an netif, and free it when all applications
1758 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1759 check if LWIP_IGMP!=0).
1761 2007-09-03 Frédéric Bernon
1762 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1763 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1764 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1765 and/or the "interface" field (for netconn layer), for join/leave operations.
1766 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1767 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1769 2007-08-30 Frédéric Bernon
1770 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1771 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1772 with other API (application based on raw API, or future "socket2" API). Ports
1773 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1775 2007-08-30 Frédéric Bernon, Jonathan Larmour
1776 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1777 user-configurable values".
1779 2007-08-29 Frédéric Bernon
1780 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1781 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1782 spirit than the others modules. Modify some IGMP debug traces.
1784 2007-08-29 Frédéric Bernon
1785 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1786 Add lwip_init function to regroup all modules initializations, and to provide
1787 a place to add code for task #7142 "Sanity check user-configurable values".
1788 Ports maintainers should remove direct initializations calls from their code,
1789 and add init.c in their makefiles. Note that lwip_init() function is called
1790 inside tcpip_init, but can also be used by raw api users since all calls are
1791 disabled when matching options are disabled. Also note that their is new options
1792 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1794 2007-08-26 Marc Boucher
1795 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1796 since they can under certain circumstances be called with an invalid conn
1797 pointer after the connection has been closed (and conn has been freed).
1799 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1800 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1801 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1803 2007-08-22 Frédéric Bernon
1804 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1805 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1807 2007-08-22 Frédéric Bernon
1808 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1809 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1810 name is tcpip_input (we keep the name of 1.2.0 function).
1812 2007-08-17 Jared Grubb
1813 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1814 settings into new memp_std.h and optional user file lwippools.h. This adds
1815 more dynamic mempools, and allows the user to create an arbitrary number of
1816 mempools for mem_malloc.
1818 2007-08-16 Marc Boucher
1819 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1820 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1821 close the connection.
1823 2007-08-16 Marc Boucher
1824 * sockets.c: lwip_accept(): check netconn_peer() error return.
1826 2007-08-16 Marc Boucher
1827 * mem.c, mem.h: Added mem_calloc().
1829 2007-08-16 Marc Boucher
1830 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1831 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1832 and starving other message types.
1833 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1835 2007-08-16 Marc Boucher
1836 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1837 type and flgs (later renamed to flags).
1838 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1839 Improved lwip_recvfrom(). TCP push now propagated.
1841 2007-08-16 Marc Boucher
1842 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1845 2007-08-16 Marc Boucher
1846 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1847 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1848 Added PPPoE support and various PPP improvements.
1850 2007-07-25 Simon Goldschmidt
1851 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1852 making netbuf_copy_partial use this function.
1854 2007-07-25 Simon Goldschmidt
1855 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1856 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1859 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1860 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1861 a link callback in the netif struct, and functions to handle it. Be carefull
1862 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1863 if you want to be sure to be compatible with future changes...
1865 2007-06-30 Frédéric Bernon
1866 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1868 2007-06-21 Simon Goldschmidt
1869 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1870 LWIP_AUTOIP =0 and =1 to remove redundant code.
1872 2007-06-21 Simon Goldschmidt
1873 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1874 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1875 heap. This both prevents memory fragmentation and gives a higher speed
1876 at the cost of more memory consumption. Turned off by default.
1878 2007-06-21 Simon Goldschmidt
1879 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1880 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1881 int to be able to send a bigger buffer than 64K with one time (mainly
1882 used from lwip_send).
1884 2007-06-21 Simon Goldschmidt
1885 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1886 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1888 2007-06-21 Simon Goldschmidt
1889 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1890 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1891 changes on low memory or empty send-buffer.
1893 2007-06-18 Simon Goldschmidt
1894 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1895 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1896 used for ethernet and struct eth_addr already had a defined length of 6).
1898 2007-06-17 Simon Goldschmidt
1899 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1900 to disable UDP checksum generation on transmit.
1902 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1903 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1904 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1905 this macro to check "conn" parameter in api_msg.c functions.
1907 2007-06-11 Simon Goldschmidt
1908 * sockets.c, sockets.h: Added UDP lite support for sockets
1910 2007-06-10 Simon Goldschmidt
1911 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1912 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1915 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1916 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1917 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1918 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1919 (see TODO mark in the source code).
1921 2007-06-09 Simon Goldschmidt
1922 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1923 etharp_output() to match netif->output so etharp_output() can be used
1924 directly as netif->output to save one function call.
1926 2007-06-08 Simon Goldschmidt
1927 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1928 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1929 added initialization of those to ethernetif, slipif and loopif.
1931 2007-05-18 Simon Goldschmidt
1932 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1933 (defaulting to off for now) that can be set to 0 to send fragmented
1934 packets by passing PBUF_REFs down the stack.
1936 2007-05-23 Frédéric Bernon
1937 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1938 connections, such present in patch #5959.
1940 2007-05-23 Frédéric Bernon
1941 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1942 code in only one part...
1944 2007-05-18 Simon Goldschmidt
1945 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1946 elements to overflow. This is achieved by adding some bytes before and after
1947 each pool element (increasing their size, of course), filling them with a
1948 prominent value and checking them on freeing the element.
1949 Set it to 2 to also check every element in every pool each time memp_malloc()
1950 or memp_free() is called (slower but more helpful).
1952 2007-05-10 Simon Goldschmidt
1953 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1954 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1957 2007-05-11 Frédéric Bernon
1958 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1959 Include a function pointer instead of a table index in the message to reduce
1960 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1961 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1963 2007-05-10 Simon Goldschmidt
1964 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1965 \ extern "C" {' in all header files. Now you can write your application using
1966 the lwIP stack in C++ and simply #include the core files. Note I have left
1967 out the netif/ppp/*h header files for now, since I don't know which files are
1968 included by applications and which are for internal use only.
1970 2007-05-09 Simon Goldschmidt
1971 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1972 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1973 situations where some compilers might inline the copy and save a function
1974 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1976 2007-05-08 Simon Goldschmidt
1977 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1978 to be overriden in case the C-library malloc implementation is not protected
1979 against concurrent access.
1981 2007-05-04 Simon Goldschmidt (Atte Kojo)
1982 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1983 multiple packets to the same host.
1985 2007-05-04 Frédéric Bernon, Jonathan Larmour
1986 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1987 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1988 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1989 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1990 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1991 these fields are now renamed "addr" & "port".
1993 2007-04-11 Jonathan Larmour
1994 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1995 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1996 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1997 by the port in sys_arch.h if desired.
1999 2007-04-06 Frédéric Bernon, Simon Goldschmidt
2000 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
2001 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
2002 clients, using new functions from netifapi.h. Disable as default (no port change to do).
2004 2007-04-05 Frédéric Bernon
2005 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
2007 2007-04-04 Simon Goldschmidt
2008 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
2009 use this for and architecture-independent form to tell the compiler you intentionally
2010 are not using this variable. Can be overriden in cc.h.
2012 2007-03-28 Frédéric Bernon
2013 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
2014 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
2015 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
2016 It will be used by DHCP to register a client hostname, but can also be use when you call
2019 2007-03-28 Frédéric Bernon
2020 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2021 initialize a network interface's flag with. It tell this interface is an ethernet
2022 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2023 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2025 2007-03-26 Frédéric Bernon, Jonathan Larmour
2026 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2027 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2028 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2029 is done in tcpip_init function.
2031 2007-03-22 Frédéric Bernon
2032 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2033 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2034 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2035 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2036 but never used. Fix msg_in.c with the correct #if test for a stat display.
2038 2007-03-21 Kieran Mansley
2039 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2040 Provides callback on netif up/down state change.
2042 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2043 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2044 ip.c, netif.h, tcpip.c, opt.h:
2045 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2046 filter per all network interfaces. Declare a new function in netif to enable to
2047 control the MAC filter (to reduce lwIP traffic processing).
2049 2007-03-11 Frédéric Bernon
2050 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2051 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2052 unless you know what you're doing (default are RFC1122 compliant). Note
2053 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2055 2007-03-08 Frédéric Bernon
2056 * tcp.h: Keepalive values can be configured at compile time, but don't change
2057 this unless you know what you're doing (default are RFC1122 compliant).
2059 2007-03-08 Frédéric Bernon
2060 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2061 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2062 on UDP sockets/netconn.
2064 2007-03-08 Simon Goldschmidt
2065 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2067 2007-03-06 Frédéric Bernon
2068 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2069 Implement SO_RCVTIMEO on UDP sockets/netconn.
2071 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2072 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2073 on the stack and remove the API msg type from memp
2075 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2076 * sockets.h, sockets.c: Move socket initialization to new
2077 lwip_socket_init() function.
2078 NOTE: this changes the API with ports. Ports will have to be
2079 updated to call lwip_socket_init() now.
2081 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2082 * api_lib.c: Use memcpy in netbuf_copy_partial.
2087 2008-03-17 Frédéric Bernon, Ed Kerekes
2088 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2089 some problems to fill the IP header on some targets, use now the
2090 ip.h macros to do it).
2092 2008-03-13 Frédéric Bernon
2093 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2094 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2095 TCP connection caused a crash. Note that using (lwip_)recvfrom
2096 like this is a bit slow and that using (lwip)getpeername is the
2097 good lwip way to do it (so, using recv is faster on tcp sockets).
2099 2008-03-12 Frédéric Bernon, Jonathan Larmour
2100 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2101 recv_raw() does not consume data", and the ping sample (with
2102 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2103 returned the IP payload, without the IP header).
2105 2008-03-04 Jonathan Larmour
2106 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2107 and/or warnings on some systems where mem_size_t and size_t differ.
2108 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2110 2008-03-04 Kieran Mansley (contributions by others)
2111 * Numerous small compiler error/warning fixes from contributions to
2112 mailing list after 1.3.0 release candidate made.
2114 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2115 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2117 2008-01-15 Kieran Mansley
2118 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2119 prevented from sending by a small send window, not just a zero
2122 2008-01-09 Jonathan Larmour
2123 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2124 conflict with Linux system headers.
2126 2008-01-06 Jonathan Larmour
2127 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2128 address entirely on receiving a DHCPNAK, and restarting discovery.
2130 2007-12-21 Simon Goldschmidt
2131 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2132 is not protected" by using new macros for interlocked access to modify/test
2133 netconn->recv_avail.
2135 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2136 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2138 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2139 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2140 of silly window avoidance and prevent lwIP from shrinking the window)
2142 2007-12-04 Simon Goldschmidt
2143 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2144 data packet was lost): add assert that all segment lists are empty in
2145 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2146 state from LAST_ACK in tcp_process
2148 2007-12-02 Simon Goldschmidt
2149 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2150 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2151 has to be set to 0 in lwipopts.h
2153 2007-12-02 Simon Goldschmidt
2154 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2155 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2156 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2157 This is a fix for thread-safety and allocates all items needed for a netconn
2158 when the netconn is created.
2160 2007-11-30 Simon Goldschmidt
2161 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2162 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2163 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2164 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2166 2007-11-27 Simon Goldschmidt
2167 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2168 letting ip_route only use netifs that are up.
2170 2007-11-27 Simon Goldschmidt
2171 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2172 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2173 sockets block most operations once they have seen a fatal error.
2175 2007-11-27 Simon Goldschmidt
2176 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2177 netif to send as an argument (to be able to send on netifs that are down).
2179 2007-11-26 Simon Goldschmidt
2180 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2183 2007-11-21 Simon Goldschmidt
2184 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2185 Fixed the nagle algorithm; nagle now also works for all raw API applications
2186 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2188 2007-11-12 Frédéric Bernon
2189 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2190 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2191 context in do_getaddr.
2193 2007-11-10 Simon Goldschmidt
2194 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2195 happen any time). Now the packet simply isn't enqueued when out of memory.
2197 2007-11-01 Simon Goldschmidt
2198 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2199 TCP_MSS if that is smaller) as long as no MSS option is received from the
2202 2007-11-01 Simon Goldschmidt
2203 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2204 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2205 sending our configured TCP_MSS instead of the one received).
2207 2007-11-01 Simon Goldschmidt
2208 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2209 calculated based on the configured TCP_MSS, not on the MSS option received
2212 2007-10-09 Simon Goldschmidt
2213 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2214 short and also was generated wrong if checksum coverage != tot_len;
2215 receive: checksum was calculated wrong if checksum coverage != tot_len
2217 2007-10-08 Simon Goldschmidt
2218 * mem.c: lfree was not updated in mem_realloc!
2220 2007-10-07 Frédéric Bernon
2221 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2222 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2223 this change cause an API breakage for netconn_addr, since a parameter
2224 type change. Any compiler should cause an error without any changes in
2225 yours netconn_peer calls (so, it can't be a "silent change"). It also
2226 reduce a little bit the footprint for socket layer (lwip_getpeername &
2227 lwip_getsockname use now a common lwip_getaddrname function since
2228 netconn_peer & netconn_addr have the same parameters).
2230 2007-09-20 Simon Goldschmidt
2231 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2232 by checking tcp_tw_pcbs also
2234 2007-09-19 Simon Goldschmidt
2235 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2237 2007-09-15 Mike Kleshov
2238 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2240 2007-09-06 Frédéric Bernon
2241 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2242 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2243 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2244 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2246 2007-08-30 Frédéric Bernon
2247 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2248 and fix some coding style.
2250 2007-08-28 Frédéric Bernon
2251 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2252 kind of packets. These packets are considered like Ethernet packets (payload
2253 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2254 are considered like IP packets (payload pointing to iphdr).
2256 2007-08-27 Frédéric Bernon
2257 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2258 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2259 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2261 2007-08-24 Kieran Mansley
2262 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2263 compiler (Paradigm C++)
2265 2007-08-09 Frédéric Bernon, Bill Florac
2266 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2267 Introduce IGMP_STATS to centralize statistics management.
2269 2007-08-09 Frédéric Bernon, Bill Florac
2270 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2271 packet on a udp pcb binded on an netif's IP address, and not on "any".
2273 2007-08-09 Frédéric Bernon, Bill Florac
2274 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2275 This is mainly on using lookup/lookfor, and some coding styles...
2277 2007-07-26 Frédéric Bernon (and "thedoctor")
2278 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2280 2007-07-25 Simon Goldschmidt
2281 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2282 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2283 (tcp_output is called again later from tcp timers).
2285 2007-07-25 Simon Goldschmidt
2286 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2287 copy_from_pbuf, which illegally modified the given pbuf.
2289 2007-07-25 Simon Goldschmidt
2290 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2291 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2293 2007-07-24 Simon Goldschmidt
2294 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2295 correct state (must be CLOSED).
2297 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2298 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2299 allocation. It now returns NULL.
2301 2007-07-13 Frédéric Bernon
2302 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2305 2007-07-13 Frédéric Bernon
2306 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2307 because current code doesn't follow rawapi.txt documentation.
2309 2007-07-13 Kieran Mansley
2310 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2311 out of sequence processing of received packets
2313 2007-07-03 Simon Goldschmidt
2314 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2315 assumption is made that this pbuf is in one piece (i.e. not chained). These
2316 assumptions clash with the possibility of converting to fully pool-based
2317 pbuf implementations, where PBUF_RAM pbufs might be chained.
2319 2007-07-03 Simon Goldschmidt
2320 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2321 when closing tcp netconns: removed conn->sem, less context switches when
2322 closing, both netconn_close and netconn_delete should safely close tcp
2325 2007-07-02 Simon Goldschmidt
2326 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2327 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2328 to cache ARP table indices with each pcb instead of single-entry cache for
2331 2007-07-02 Simon Goldschmidt
2332 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2333 warnings when assigning to smaller types.
2335 2007-06-28 Simon Goldschmidt
2336 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2338 2007-06-28 Simon Goldschmidt
2339 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2340 a segment contained chained pbufs)
2342 2007-06-28 Frédéric Bernon
2343 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2344 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2345 possible to define this macro in your own lwipopts.h to always use C library's
2346 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2348 2007-06-28 Frédéric Bernon
2349 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2350 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2351 in api_lib/api_msg (use pointers and not type with table, etc...)
2353 2007-06-26 Simon Goldschmidt
2354 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2356 2007-06-25 Simon Goldschmidt
2357 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2358 for udp packets with no matching pcb.
2360 2007-06-25 Simon Goldschmidt
2361 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2362 could get udp input packets if the remote side matched.
2364 2007-06-13 Simon Goldschmidt
2365 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2366 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2368 2007-06-13 Simon Goldschmidt
2369 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2370 -> netconn_new_..() does not allocate a new connection for unsupported
2373 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2374 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2375 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2377 2007-06-13 Frédéric Bernon, Matthias Weisser
2378 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2379 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2380 some macro names collision with some OS macros.
2382 2007-06-11 Simon Goldschmidt
2383 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2384 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2385 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2388 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2389 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2390 where TCP flags wasn't initialized in tcp_keepalive.
2392 2007-06-03 Simon Goldschmidt
2393 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2394 registered, p->payload was modified without modifying p->len if sending
2395 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2397 2007-06-03 Simon Goldschmidt
2398 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2399 re-used the input pbuf even if that didn't have enough space to include the
2400 link headers. Now the space is tested and a new pbuf is allocated for the
2401 echo response packet if the echo request pbuf isn't big enough.
2403 2007-06-01 Simon Goldschmidt
2404 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2406 2007-05-23 Frédéric Bernon
2407 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2408 allocated by do_listen if success) and netconn_accept errors handling. In
2409 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2410 by ASSERT, except for netconn_delete.
2412 2007-05-23 Frédéric Bernon
2413 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2414 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2415 directly close the recvmbox).
2417 2007-05-22 Simon Goldschmidt
2418 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2419 bound but unconnected (and non-listening) tcp_pcbs.
2421 2007-05-22 Frédéric Bernon
2422 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2423 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2424 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2425 like "sys_timeout" in their application threads.
2427 2007-05-22 Frédéric Bernon
2428 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2429 which parameters are used by which do_xxx function, and to avoid "misusing"
2430 parameters (patch #5938).
2432 2007-05-22 Simon Goldschmidt
2433 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2434 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2435 is only 8 bits wide. This affects the api, as there, the protocol was
2438 2007-05-18 Simon Goldschmidt
2439 * memp.c: addition to patch #5913: smaller pointer was returned but
2440 memp_memory was the same size -> did not save memory.
2442 2007-05-16 Simon Goldschmidt
2443 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2446 2007-05-16 Simon Goldschmidt
2447 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2448 as the one of the netif used for sending to prevent sending from old
2449 addresses after a netif address gets changed (partly fixes bug #3168).
2451 2007-05-16 Frédéric Bernon
2452 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2453 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2454 tcpip_init) because we have to be sure that network interfaces are already
2455 added (mac filter is updated only in igmp_init for the moment).
2457 2007-05-16 Simon Goldschmidt
2458 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2459 into sys_arch_sem_wait calls to prevent timers from running while waiting
2460 for the heap. This fixes bug #19167.
2462 2007-05-13 Simon Goldschmidt
2463 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2464 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2467 2007-05-07 Simon Goldschmidt
2468 * mem.c: Another attempt to fix bug #17922.
2470 2007-05-04 Simon Goldschmidt
2471 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2472 implementation so that it can be reused (don't allocate the target
2473 pbuf inside pbuf_copy()).
2475 2007-05-04 Simon Goldschmidt
2476 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2477 to save a little RAM (next pointer of memp is not used while not in pool).
2480 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2483 2007-04-23 Simon Goldschmidt
2484 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2485 in NULL reference for incoming TCP packets". Loopif has to be configured
2486 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2487 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2488 putting packets on a list that is fed to the stack by calling loopif_poll()
2489 (single-thread / NO_SYS / polling environment where e.g.
2490 netif->input() = ip_input).
2492 2007-04-17 Jonathan Larmour
2493 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2494 the difference between two u16_t's.
2495 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2496 MEMP_NUM_NETCONN in sockets.c right now.
2498 2007-04-12 Jonathan Larmour
2499 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2501 2007-04-12 Kieran Mansley
2502 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2503 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2505 2007-04-11 Simon Goldschmidt
2506 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2507 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2508 pbuf.c: removed functions no needed any more (by etharp).
2510 2007-04-11 Kieran Mansley
2511 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2512 "Constant is long" warnings with 16bit compilers. Contributed by
2513 avatar@mmlab.cse.yzu.edu.tw
2515 2007-04-05 Frédéric Bernon, Jonathan Larmour
2516 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2517 the mailbox is active". Now, the post is only done during a connect, and do_send,
2518 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2520 2007-04-03 Frédéric Bernon
2521 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2522 packets. See patch #5834.
2524 2007-03-30 Frédéric Bernon
2525 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2526 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2528 2007-03-30 Frédéric Bernon
2529 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2530 others environment defines (these were too "generic").
2532 2007-03-28 Frédéric Bernon
2533 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2534 result and can cause a crash. lwip_send now check netbuf_ref result.
2536 2007-03-28 Simon Goldschmidt
2537 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2538 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2539 defined. This is the way it should have been already (looking at
2542 2007-03-28 Kieran Mansley
2543 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2544 IP and TCP headers *and* physical link headers
2546 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2547 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2548 to send some garbage. It is not a definitive solution, but the patch does solve
2549 the problem for most cases.
2551 2007-03-22 Frédéric Bernon
2552 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2554 2007-03-22 Frédéric Bernon
2555 * api_lib.c: somes resources couldn't be freed if there was errors during
2556 netconn_new_with_proto_and_callback.
2558 2007-03-22 Frédéric Bernon
2559 * ethernetif.c: update netif->input calls to check return value. In older ports,
2560 it's a good idea to upgrade them, even if before, there could be another problem
2561 (access to an uninitialized mailbox).
2563 2007-03-21 Simon Goldschmidt
2564 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2565 by casting to unsigned).
2567 2007-03-21 Frédéric Bernon
2568 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2569 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2570 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2571 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2572 faster and more reliable communication between api_lib and tcpip.
2574 2007-03-21 Frédéric Bernon
2575 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2577 2007-03-21 Frédéric Bernon
2578 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2580 2007-03-21 Kieran Mansley
2581 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2584 2007-03-21 Kieran Mansley
2585 * Fix all uses of pbuf_header to check the return value. In some
2586 cases just assert if it fails as I'm not sure how to fix them, but
2587 this is no worse than before when they would carry on regardless
2590 2007-03-21 Kieran Mansley
2591 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2592 comment out missing header include in icmp.c
2594 2007-03-20 Frédéric Bernon
2595 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2596 synchronized with memp.h.
2598 2007-03-20 Frédéric Bernon
2599 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2600 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2601 network interfaces. Also fix a compiler warning.
2603 2007-03-20 Kieran Mansley
2604 * udp.c: Only try and use pbuf_header() to make space for headers if
2605 not a ROM or REF pbuf.
2607 2007-03-19 Frédéric Bernon
2608 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2611 2007-03-19 Frédéric Bernon
2612 * Remove unimplemented "memp_realloc" function from memp.h.
2614 2007-03-11 Simon Goldschmidt
2615 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2618 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2619 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2620 (missing `const' qualifier in socket functions), to get more compatible to
2621 standard POSIX sockets.
2623 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2624 * sockets.c: Add asserts inside bind, connect and sendto to check input
2625 parameters. Remove excessive set_errno() calls after get_socket(), because
2626 errno is set inside of get_socket(). Move last sock_set_errno() inside
2629 2007-03-09 Simon Goldschmidt
2630 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2631 was allocated too small.
2633 2007-03-06 Simon Goldschmidt
2634 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2635 the stack from concurrent access.
2637 2007-03-06 Frédéric Bernon, Dmitry Potapov
2638 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2639 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2641 2007-03-06 Simon Goldschmidt
2642 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2643 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2645 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2646 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2647 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2648 Allow to do ARP processing for incoming packets inside tcpip_thread
2649 (protecting ARP layer against concurrent access). You can also disable
2650 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2651 Older ports have to use tcpip_ethinput.
2653 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2654 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2655 from pointer target type"
2657 2007-03-05 Frédéric Bernon
2658 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2659 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2661 2007-03-04 Frédéric Bernon
2662 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2665 2007-03-04 Frédéric Bernon
2666 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2668 The api_msg struct stay on the stack (not moved to netconn struct).
2670 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2671 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2672 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2673 Also fixed cast warning in pbuf_alloc()
2675 2007-03-04 Simon Goldschmidt
2676 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2677 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2679 2007-03-03 Frédéric Bernon
2680 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2681 It is static, and never used in udp.c except udp_init().
2683 2007-03-02 Simon Goldschmidt
2684 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2685 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2686 initialized before tcpip_thread is running (e.g. before OS is started)
2688 2007-03-02 Frédéric Bernon
2689 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2692 2007-02-28 Kieran Mansley
2693 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2694 outside the region of the pbuf by pbuf_header()
2696 2007-02-28 Kieran Mansley
2697 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2698 when supplied timeout is also non-zero
2702 2006-12-05 Leon Woestenberg
2703 * CHANGELOG: Mention STABLE-1.2.0 release.
2707 2006-12-01 Christiaan Simons
2708 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2709 Note this is a workaround. Currently I have no other options left.
2711 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2712 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2713 to include/lwip/opt.h.
2714 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2715 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2716 * opt.h: Add above new options.
2718 2006-08-18 Christiaan Simons
2719 * tcp_{in,out}.c: added SNMP counters.
2720 * ipv4/ip.c: added SNMP counters.
2721 * ipv4/ip_frag.c: added SNMP counters.
2723 2006-08-08 Christiaan Simons
2724 * etharp.{c,h}: added etharp_find_addr() to read
2725 (stable) ethernet/IP address pair from ARP table
2727 2006-07-14 Christiaan Simons
2728 * mib_structs.c: added
2729 * include/lwip/snmp_structs.h: added
2730 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2732 2006-07-06 Christiaan Simons
2733 * snmp/asn1_{enc,dec}.c added
2735 * snmp/msg_{in,out}.c added
2736 * include/lwip/snmp_asn1.h added
2737 * include/lwip/snmp_msg.h added
2738 * doc/snmp_agent.txt added
2740 2006-03-29 Christiaan Simons
2741 * inet.c, inet.h: Added platform byteswap support.
2742 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2743 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2747 2006-11-30 Christiaan Simons
2748 * dhcp.c: Fixed false triggers of request_timeout.
2750 2006-11-28 Christiaan Simons
2751 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2753 2006-10-11 Christiaan Simons
2754 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2755 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2756 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2757 identifier from 170 to 136 (bug #17574).
2759 2006-10-10 Christiaan Simons
2760 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2762 2006-08-17 Christiaan Simons
2763 * udp.c: Fixed bug #17200, added check for broadcast
2764 destinations for PCBs bound to a unicast address.
2766 2006-08-07 Christiaan Simons
2767 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2769 2006-06-27 Christiaan Simons
2770 * api_msg.c: Applied patch for cold case (bug #11135).
2771 In accept_function() ensure newconn->callback is always initialized.
2773 2006-06-15 Christiaan Simons
2774 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2775 facilitate printing of mem_size_t and u16_t statistics.
2777 2006-06-14 Christiaan Simons
2778 * api_msg.c: Applied patch #5146 to handle allocation failures
2779 in accept() by Kevin Lawson.
2781 2006-05-26 Christiaan Simons
2782 * api_lib.c: Removed conn->sem creation and destruction
2783 from netconn_write() and added sys_sem_new to netconn_new_*.
2787 2006-03-03 Christiaan Simons
2788 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2789 access and added pbuf_alloc() return value checks.
2791 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2792 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2793 now handled by the checksum routine properly.
2795 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2796 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2797 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2799 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2800 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2801 submitted by Mitrani Hiroshi.
2803 2005-12-15 Christiaan Simons
2804 * inet.c: Disabled the added summing routine to preserve code space.
2806 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2807 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2808 Added Curt McDowell's optimized checksumming routine for future
2809 inclusion. Need to create test case for unaliged, aligned, odd,
2810 even length combination of cases on various endianess machines.
2812 2005-12-09 Christiaan Simons
2813 * inet.c: Rewrote standard checksum routine in proper portable C.
2815 2005-11-25 Christiaan Simons
2816 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2817 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2818 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2820 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2821 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2822 routine by Peter Jolasson.
2823 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2825 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2826 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2827 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2829 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2830 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2832 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2833 * udp.c: UDP pcb->recv() was called even when it was NULL.
2837 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2838 * etharp.*: Disabled multiple packets on the ARP queue.
2839 This clashes with TCP queueing.
2841 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2842 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2843 Halved the ARP period, doubled the period counts.
2844 ETHARP_MAX_PENDING now should be at least 2. This prevents
2845 the counter from reaching 0 right away (which would allow
2846 too little time for ARP responses to be received).
2848 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2849 * dhcp.c: Decline messages were not multicast but unicast.
2850 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2851 Do not try hard to insert arbitrary packet's source address,
2852 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2853 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2854 querying an address will see it appear in the cache (DHCP could
2855 suffer from this when a server invalidly gave an in-use address.)
2856 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2857 comparing network addresses (identifiers), not the network masks
2859 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2860 IP address actually belongs to the network of the given interface.
2862 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2863 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2867 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2868 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2869 even if one is already pending, if the rcv_wnd is above a threshold
2870 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2871 delayed ACK in order to open the window if the stack is only receiving data.
2873 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2874 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2876 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2877 * etharp.c: Make sure the first pbuf queued on an ARP entry
2878 is properly ref counted.
2880 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2881 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2882 warnings about comparison.
2883 * pbuf.c: Stopped compiler complaining of empty if statement
2884 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2885 * tcp.c: Stopped compiler complaining of empty if statement
2886 when LWIP_DEBUGF() empty.
2887 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2888 * inet.c: Added a couple of casts to quiet the compiler.
2889 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2891 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2892 * inet.c: Made data types consistent in inet_ntoa().
2893 Added casts for return values of checksum routines, to pacify compiler.
2894 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2895 Small corrections to some debugging statements, to pacify compiler.
2897 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2898 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2899 * ethernetif.c Updated low_level_output() to match prototype for
2900 netif->linkoutput and changed low_level_input() similarly for consistency.
2901 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2902 of raw_recv() in raw.h and so avoid compiler error.
2903 * sockets.c: Added trivial (int) cast to keep compiler happier.
2904 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2910 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2911 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2912 your cc.h file defines this either 1 or 0. If non-defined,
2914 * .c: Added <string.h> and <errno.h> includes where used.
2915 * etharp.c: Made some array indices unsigned.
2917 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2918 * netif.*: Added netif_set_up()/down().
2919 * dhcp.c: Changes to restart program flow.
2921 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2922 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2923 single-pass lookup for different candidates. Should exploit locality.
2925 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2926 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2927 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2928 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2929 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2933 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2934 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2935 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2936 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2937 is to prefix the 14-bit Ethernet headers with two padding bytes.
2939 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2940 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2941 * etharp.c: Fixed the case where the packet that initiates the ARP request
2942 is not queued, and gets lost. Fixed the case where the packets destination
2943 address is already known; we now always queue the packet and perform an ARP
2950 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2951 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2952 * Fixed two possible NULL references in rare cases.
2958 * Fixed DHCP which did not include the IP address in DECLINE messages.
2962 * etharp.c has been hauled over a bit.
2968 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2969 * Packets sent from ARP queue had invalid source hardware address.
2973 * Pass-by ARP requests do now update the cache.
2977 * No longer dependent on ctype.h.
2978 * New socket options.
2979 * Raw IP pcb support.
2985 * Some debug formatters and casts fixed.
2986 * Numereous fixes in PPP.
2990 * DEBUGF now is LWIP_DEBUGF
2991 * pbuf_dechain() has been re-enabled.
2992 * Mentioned the changed use of CVS branches in README.
2998 * Fixed pool pbuf memory leak in pbuf_alloc().
2999 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
3000 Reported by Savin Zlobec.
3002 * PBUF_POOL chains had their tot_len field not set for non-first
3003 pbufs. Fixed in pbuf_alloc().
3007 * Added PPP stack contributed by Marc Boucher
3011 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
3013 * ARP queueuing now queues the latest packet instead of the first.
3014 This is the RFC recommended behaviour, but can be overridden in
3021 * TCP has been fixed to deal with the new use of the pbuf->ref
3024 * DHCP dhcp_inform() crash bug fixed.
3028 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3029 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3030 Implemented by David Haas.
3036 * The packet buffer implementation has been enhanced to support
3037 zero-copy and copy-on-demand for packet buffers which have their
3038 payloads in application-managed memory.
3039 Implemented by David Haas.
3041 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3042 if an outgoing packet can be directly sent on the link, or perform
3043 a copy-on-demand when necessary.
3045 The application can safely assume the packet is sent, and the RAM
3046 is available to the application directly after calling udp_send()
3047 or similar function.
3051 * ARP_QUEUEING should now correctly work for all cases, including
3053 Implemented by Leon Woestenberg.
3057 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3058 to a '0.0.0.0' IP address.
3060 * The packet buffer implementation is changed. The pbuf->ref counter
3061 meaning has changed, and several pbuf functions have been
3062 adapted accordingly.
3064 * netif drivers have to be changed to set the hardware address length field
3065 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3066 See the contrib/ports/c16x cs8900 driver as a driver example.
3068 * netif's have a dhcp field that must be initialized to NULL by the driver.
3069 See the contrib/ports/c16x cs8900 driver as a driver example.
3071 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3072 logged in CVS but have not been explained here.
3074 (0.5.3) Changes since version 0.5.2
3078 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3079 threads because it wasn't protected by semaphores.
3083 * struct ip_addr now packed.
3085 * The name of the time variable in arp.c has been changed to ctime
3086 to avoid conflicts with the time() function.
3088 (0.5.2) Changes since version 0.5.1
3092 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3096 * A bug in tcp_parseopt() could cause the stack to hang because of a
3097 malformed TCP option.
3099 * The address of new connections in the accept() function in the BSD
3100 socket library was not handled correctly.
3102 * pbuf_dechain() did not update the ->tot_len field of the tail.
3104 * Aborted TCP connections were not handled correctly in all
3109 * All protocol header structs are now packed.
3111 * The ->len field in the tcp_seg structure now counts the actual
3112 amount of data, and does not add one for SYN and FIN segments.
3114 (0.5.1) Changes since version 0.5.0
3118 * Possible to run as a user process under Linux.
3120 * Preliminary support for cross platform packed structs.
3122 * ARP timer now implemented.
3126 * TCP output queue length was badly initialized when opening
3129 * TCP delayed ACKs were not sent correctly.
3131 * Explicit initialization of BSS segment variables.
3133 * read() in BSD socket library could drop data.
3135 * Problems with memory alignment.
3137 * Situations when all TCP buffers were used could lead to
3140 * TCP MSS option wasn't parsed correctly.
3142 * Problems with UDP checksum calculation.
3144 * IP multicast address tests had endianess problems.
3146 * ARP requests had wrong destination hardware address.
3150 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3152 * A ->linkoutput() member was added to struct netif.
3154 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3156 * ntoh* macros are now null definitions for big endian CPUs.
3158 (0.5.0) Changes since version 0.4.2
3162 * Redesigned operating system emulation layer to make porting easier.
3164 * Better control over TCP output buffers.
3166 * Documenation added.
3170 * Locking issues in buffer management.
3172 * Bugfixes in the sequential API.
3174 * IP forwarding could cause memory leakage. This has been fixed.
3178 * Directory structure somewhat changed; the core/ tree has been
3181 (0.4.2) Changes since version 0.4.1
3185 * Experimental ARP implementation added.
3187 * Skeleton Ethernet driver added.
3189 * Experimental BSD socket API library added.
3193 * In very intense situations, memory leakage could occur. This has
3198 * Variables named "data" and "code" have been renamed in order to
3199 avoid name conflicts in certain compilers.
3201 * Variable++ have in appliciable cases been translated to ++variable
3202 since some compilers generate better code in the latter case.
3204 (0.4.1) Changes since version 0.4
3208 * TCP: Connection attempts time out earlier than data
3209 transmissions. Nagle algorithm implemented. Push flag set on the
3210 last segment in a burst.
3212 * UDP: experimental support for UDP-Lite extensions.
3216 * TCP: out of order segments were in some cases handled incorrectly,
3217 and this has now been fixed. Delayed acknowledgements was broken
3218 in 0.4, has now been fixed. Binding to an address that is in use
3219 now results in an error. Reset connections sometimes hung an
3220 application; this has been fixed.
3222 * Checksum calculation sometimes failed for chained pbufs with odd
3223 lengths. This has been fixed.
3225 * API: a lot of bug fixes in the API. The UDP API has been improved
3226 and tested. Error reporting and handling has been
3227 improved. Logical flaws and race conditions for incoming TCP
3228 connections has been found and removed.
3230 * Memory manager: alignment issues. Reallocating memory sometimes
3231 failed, this has been fixed.
3233 * Generic library: bcopy was flawed and has been fixed.
3237 * API: all datatypes has been changed from generic ones such as
3238 ints, to specified ones such as u16_t. Functions that return
3239 errors now have the correct type (err_t).
3241 * General: A lot of code cleaned up and debugging code removed. Many
3242 portability issues have been fixed.
3244 * The license was changed; the advertising clause was removed.
3248 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3249 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3252 (0.4) Changes since version 0.3.1
3254 * Memory management has been radically changed; instead of
3255 allocating memory from a shared heap, memory for objects that are
3256 rapidly allocated and deallocated is now kept in pools. Allocation
3257 and deallocation from those memory pools is very fast. The shared
3258 heap is still present but is used less frequently.
3260 * The memory, memory pool, and packet buffer subsystems now support
3261 4-, 2-, or 1-byte alignment.
3263 * "Out of memory" situations are handled in a more robust way.
3265 * Stack usage has been reduced.
3267 * Easier configuration of lwIP parameters such as memory usage,
3268 TTLs, statistics gathering, etc. All configuration parameters are
3269 now kept in a single header file "lwipopts.h".
3271 * The directory structure has been changed slightly so that all
3272 architecture specific files are kept under the src/arch
3275 * Error propagation has been improved, both in the protocol modules
3278 * The code for the RTXC architecture has been implemented, tested
3281 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3282 the Internet checksum modules.
3284 * Bugs related to porting between a 32-bit and a 16-bit architecture
3285 have been found and corrected.
3287 * The license has been changed slightly to conform more with the
3288 original BSD license, including the advertisement clause.
3290 (0.3.1) Changes since version 0.3
3292 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3293 RAM never returned the RAM when the pbuf was deallocated.
3295 * TCP congestion control, window updates and retransmissions did not
3296 work correctly. This has now been fixed.
3298 * Bugfixes in the API.
3300 (0.3) Changes since version 0.2
3302 * New and improved directory structure. All include files are now
3303 kept in a dedicated include/ directory.
3305 * The API now has proper error handling. A new function,
3306 netconn_err(), now returns an error code for the connection in
3309 * Improvements in the memory management subsystem. The system now
3310 keeps a pointer to the lowest free memory block. A new function,
3311 mem_malloc2() tries to allocate memory once, and if it fails tries
3312 to free some memory and retry the allocation.
3314 * Much testing has been done with limited memory
3315 configurations. lwIP now does a better job when overloaded.
3317 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3319 * Many bugfixes in the TCP code:
3321 - Fixed a bug in tcp_close().
3323 - The TCP receive window was incorrectly closed when out of
3324 sequence segments was received. This has been fixed.
3326 - Connections are now timed-out of the FIN-WAIT-2 state.
3328 - The initial congestion window could in some cases be too
3329 large. This has been fixed.
3331 - The retransmission queue could in some cases be screwed up. This
3334 - TCP RST flag now handled correctly.
3336 - Out of sequence data was in some cases never delivered to the
3337 application. This has been fixed.
3339 - Retransmitted segments now contain the correct acknowledgment
3340 number and advertised window.
3342 - TCP retransmission timeout backoffs are not correctly computed
3343 (ala BSD). After a number of retransmissions, TCP now gives up
3346 * TCP connections now are kept on three lists, one for active
3347 connections, one for listening connections, and one for
3348 connections that are in TIME-WAIT. This greatly speeds up the fast
3349 timeout processing for sending delayed ACKs.
3351 * TCP now provides proper feedback to the application when a
3352 connection has been successfully set up.
3354 * More comments have been added to the code. The code has also been
3355 somewhat cleaned up.
3357 (0.2) Initial public release.