5 * [Enter new changes just after this line - do not remove this line]
9 2012-03-25: Simon Goldschmidt (idea by Mason)
10 * posix/*: added posix-compatibility include files posix/netdb.h and posix/sys/socket.h
11 which are a simple wrapper to the correct lwIP include files.
13 2012-01-16: Simon Goldschmidt
14 * opt.h, icmp.c: Added option CHECKSUM_GEN_ICMP
16 2011-12-17: Simon Goldschmidt
17 * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW)
20 2011-09-27: Simon Goldschmidt
21 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
22 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
24 2011-09-21: Simon Goldschmidt
25 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
26 send (TCP only, bug #33820)
28 2011-09-21: Simon Goldschmidt
29 * init.c: Converted runtime-sanity-checks into compile-time checks that can
30 be disabled (since runtime checks can often not be seen on embedded targets)
32 2011-09-11: Simon Goldschmidt
33 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
34 to get a clear separation of which functions an application or port may use
37 2011-09-11: Simon Goldschmidt
38 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
39 initial local TCP/UDP ports (so that different port ranges are used after
40 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
42 2011-09-03: Simon Goldschmidt
43 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
45 2011-08-24: Simon Goldschmidt
46 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
48 2011-07-26: Simon Goldschmidt
49 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
50 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
52 2011-07-21: Simon Goldschmidt (patch by hanhui)
53 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
54 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
55 Also added code to allow ip_forward() to forward non-broadcast packets to
56 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
58 2011-07-21: Simon Goldschmidt
59 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
60 ioctl/FIONREAD return the size of the next pending datagram.
62 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
63 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
66 2011-05-25: Simon Goldschmidt
67 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
68 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
69 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
70 code so that the code is more readable.
72 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
73 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
74 Ivan! (this is work in progress: we're just post release anyway :-)
76 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
77 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
83 2012-03-27: Simon Goldschmidt
84 * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
86 2012-03-27: Simon Goldschmidt (patch by Mason)
87 * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
90 2012-03-25: Simon Goldschmidt
91 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
92 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
94 2012-03-25: Simon Goldschmidt
95 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
96 pollution in api_msg.c and netifapi.c
98 2012-03-22: Simon Goldschmidt
99 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
101 2012-03-20: Simon Goldschmidt (patch by Mason)
102 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
104 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
105 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
106 possible bug on little endian system
108 2012-02-23: Simon Goldschmidt
109 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
110 (introduced when fixing bug# 33551)
112 2012-02-16: Simon Goldschmidt
113 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
114 (bug #35541: PPP Memory Leak)
116 2012-02-16: Simon Goldschmidt
117 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
118 (introduced when fixing bug# 33551)
120 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
121 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
123 2012-02-15: Simon Goldschmidt
124 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
127 2012-02-12: Simon Goldschmidt
128 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
129 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
131 2012-02-11: Simon Goldschmidt
132 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
135 2012-01-22: Simon Goldschmidt
136 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
138 2012-01-21: Simon Goldschmidt
139 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
141 2012-01-20: Simon Goldschmidt
142 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
144 2012-01-20: Simon Goldschmidt
145 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
147 2011-11-25: Simon Goldschmidt
148 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
149 tcp_active_pcbs in some cases
151 2011-11-23: Simon Goldschmidt
152 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
155 2011-11-22: Simon Goldschmidt
156 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
157 netif is brought down
159 2011-10-28: Simon Goldschmidt
160 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
162 2011-10-23: Simon Goldschmidt
163 * mem.c: fixed bug #34429: possible memory corruption with
164 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
166 2011-10-18: Simon Goldschmidt
167 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
170 2011-10-18: Simon Goldschmidt
171 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
172 windows (bug #34176 select after non-blocking send times out)
174 2011-10-18: Simon Goldschmidt
175 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
176 consider netif->mtu, causes slow network
178 2011-10-18: Simon Goldschmidt
179 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
181 2011-10-18: Simon Goldschmidt
182 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
184 2011-10-17: Simon Goldschmidt
185 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
187 2011-10-13: Simon Goldschmidt
188 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
189 zero window is received) by starting the persist timer when a zero window is
190 received, not when we have more data queued for sending than fits into the
193 2011-10-13: Simon Goldschmidt
194 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
196 2011-10-13: Simon Goldschmidt
197 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
198 used and not all protocols are enabled
200 2011-10-12: Simon Goldschmidt
201 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
203 2011-10-09: Simon Goldschmidt
204 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
205 byte value when pcb->unacked != NULL
207 2011-10-09: Simon Goldschmidt
208 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
210 2011-09-27: Simon Goldschmidt
211 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
213 2011-09-27: Simon Goldschmidt
214 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
216 2011-09-27: Simon Goldschmidt
217 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
219 2011-09-24: Simon Goldschmidt
220 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
222 2011-09-23: Simon Goldschmidt
223 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
224 the last packet including FIN can lose data
226 2011-09-22: Simon Goldschmidt
227 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
230 2011-09-21: Simon Goldschmidt
231 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
234 2011-09-20: Simon Goldschmidt
235 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
237 2011-09-11: Simon Goldschmidt
238 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
241 2011-09-09: Simon Goldschmidt
242 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
245 2011-09-03: Simon Goldschmidt
246 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
247 is aggregated and sent to application
249 2011-09-01: Simon Goldschmidt
250 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
253 2011-09-01: Simon Goldschmidt
254 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
256 2011-08-24: Simon Goldschmidt
257 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
259 2011-08-24: Simon Goldschmidt
260 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
261 accept() on UDP connections
263 2011-08-24: Simon Goldschmidt
264 * sockets.h: fixed bug #34057 socklen_t should be a typedef
266 2011-08-24: Simon Goldschmidt
267 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
269 2011-08-24: Simon Goldschmidt
270 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
272 2011-08-24: Simon Goldschmidt
273 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
275 2011-08-22: Simon Goldschmidt
276 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
277 merely prevents nagle from not transmitting fast after closing.)
279 2011-07-22: Simon Goldschmidt
280 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
281 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
282 lwip_send() sends as much as possible for non-blocking sockets
284 2011-07-22: Simon Goldschmidt
285 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
286 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
287 at regular intervals from main level.
289 2011-07-21: Simon Goldschmidt
290 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
291 sending an ARP request when an ARP entry is used in the last minute before
294 2011-07-04: Simon Goldschmidt
295 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
297 2011-06-26: Simon Goldschmidt
298 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
299 updating its documentation only.
301 2011-06-26: Simon Goldschmidt
302 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
305 2011-06-26: Simon Goldschmidt
306 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
314 2011-03-27: Simon Goldschmidt
315 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
316 calculate it in tcp_zero_window_probe (the only place where it was used).
318 2010-11-21: Simon Goldschmidt
319 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
322 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
323 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
324 IP_MULTICAST_LOOP at socket- and raw-API level.
326 2010-06-16: Simon Goldschmidt
327 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
328 link-layer-addressed UDP traffic to be received while a netif is down (just
329 like DHCP during configuration)
331 2010-05-22: Simon Goldschmidt
332 * many many files: bug #27352: removed packing from ip_addr_t, the packed
333 version is now only used in protocol headers. Added global storage for
334 current src/dest IP address while in input functions.
336 2010-05-16: Simon Goldschmidt
337 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
338 calculation (and use them throughout the stack where applicable)
340 2010-05-16: Simon Goldschmidt
341 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
342 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
344 2010-05-16: Simon Goldschmidt
345 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
346 MEMP pool instead of the heap
348 2010-05-13: Simon Goldschmidt
349 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
350 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
351 packets to more than one pcb.
353 2010-05-02: Simon Goldschmidt
354 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
355 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
357 2010-04-30: Simon Goldschmidt
358 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
359 take a precalculated checksum, added pbuf_fill_chksum() to copy data
360 into a pbuf and at the same time calculating the checksum for that data
362 2010-04-29: Simon Goldschmidt
363 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
364 2-byte-aligned IP addresses and MAC addresses
366 2010-04-28: Patch by Bill Auerbach
367 * ip.c: Inline generating IP checksum to save a function call
369 2010-04-14: Simon Goldschmidt
370 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
371 tcpip_thread processes messages or timeouts to implement a watchdog.
373 2010-03-28: Simon Goldschmidt
374 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
375 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
377 2010-03-27: Simon Goldschmidt
378 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
379 etharp_query to prevent unnecessary function calls (inspired by
382 2010-03-20: Simon Goldschmidt
383 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
384 since the linker cannot do this automatically to save space.
386 2010-03-20: Simon Goldschmidt
387 * opt.h, etharp.c/.h: Added support for static ARP table entries
389 2010-03-14: Simon Goldschmidt
390 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
391 when creating TCP segments, not when (re-)transmitting them.
393 2010-03-07: Simon Goldschmidt
394 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
395 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
396 This should speed up receiving data on sockets as the select code in
397 event_callback is only executed when select is waiting.
399 2010-03-06: Simon Goldschmidt
400 * tcp_out.c: task #7013 (Create option to have all packets delivered to
401 netif->output in one piece): Always copy to try to create single pbufs
404 2010-03-06: Simon Goldschmidt
405 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
406 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
407 for tcp netconns to receive pbufs, not netbufs; use that function
410 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
411 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
412 Work on tcp_enqueue: Don't waste memory when chaining segments,
413 added option TCP_OVERSIZE to prevent creating many small pbufs when
414 calling tcp_write with many small blocks of data. Instead, pbufs are
415 allocated larger than needed and the space is used for later calls to
418 2010-02-21: Simon Goldschmidt
419 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
422 2010-02-21: Simon Goldschmidt
423 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
424 implementation of tcp to make API usage cleare to application programmers
426 2010-02-14: Simon Goldschmidt/Stephane Lesage
427 * ip_addr.h: Improved some defines working on ip addresses, added faster
428 macro to copy addresses that cannot be NULL
430 2010-02-13: Simon Goldschmidt
431 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
432 blocking send operation)
434 2010-02-12: Simon Goldschmidt
435 * sockets.c/.h: Added a minimal version of posix fctl() to have a
436 standardised way to set O_NONBLOCK for nonblocking sockets.
438 2010-02-12: Simon Goldschmidt
439 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
440 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
441 and dhcp work with user-allocated structs instead of callin mem_malloc
443 2010-02-12: Simon Goldschmidt/Jeff Barber
444 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
445 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
447 2010-02-12: Simon Goldschmidt
448 * sys layer: task #10139 (Prefer statically allocated memory): converted
449 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
450 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
451 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
452 to let sys.h use binary semaphores instead of mutexes - as before)
454 2010-02-09: Simon Goldschmidt (Simon Kallweit)
455 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
456 (Restart system timeout handling)
458 2010-02-09: Simon Goldschmidt
459 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
460 netif.c) - loopif does not have to be created by the port any more,
461 just define LWIP_HAVE_LOOPIF to 1.
463 2010-02-08: Simon Goldschmidt
464 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
465 inet_ntoa_r/ipaddr_ntoa_r
467 2010-02-08: Simon Goldschmidt
468 * netif.h: Added netif_s/get_igmp_mac_filter() macros
470 2010-02-05: Simon Goldschmidt
471 * netif.h: Added function-like macros to get/set the hostname on a netif
473 2010-02-04: Simon Goldschmidt
474 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
475 make changing the actual implementation behind the typedef easier.
477 2010-02-01: Simon Goldschmidt
478 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
479 for allocating memory when getaddrinfo() is called.
481 2010-01-31: Simon Goldschmidt
482 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
483 them once instead of parsing for every option. This also removes
484 the need for mem_malloc from dhcp_recv and makes it possible to
485 correctly retrieve the BOOTP file.
487 2010-01-30: simon Goldschmidt
488 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
491 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
492 * api.h, api_msg.c, sockets.c: Added except set support in select
495 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
496 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
497 Add non-blocking support for connect (partly from patch #6860),
498 plus many cleanups in socket & netconn API.
500 2010-01-27: Simon Goldschmidt
501 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
502 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
504 2010-01-26: Simon Goldschmidt
505 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
507 2010-01-14: Simon Goldschmidt
508 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
509 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
511 2010-01-13: Simon Goldschmidt
512 * mem.c: The heap now may be moved to user-defined memory by defining
513 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
514 (patch #6966 and bug #26133)
516 2010-01-10: Simon Goldschmidt (Bill Auerbach)
517 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
520 2010-01-10: Simon Goldschmidt
521 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
522 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
524 2009-12-31: Simon Goldschmidt
525 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
526 added timers.c/.h: Separated timer implementation from semaphore/mbox
527 implementation, moved timer implementation to timers.c/.h, timers are
528 now only called from tcpip_thread or by explicitly checking them.
531 2009-12-27: Simon Goldschmidt
532 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
533 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
538 2011-04-20: Simon Goldschmidt
539 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
541 2011-04-13: Simon Goldschmidt
542 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
543 using ports in the IANA private/dynamic range (49152 through 65535).
545 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
546 * etharp.h/.c: Fixed broken VLAN support.
548 2011-03-27: Simon Goldschmidt
549 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
550 pcbs) by checking if the pcb was bound (local_port != 0).
552 2011-03-27: Simon Goldschmidt
553 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
555 2011-03-27: Simon Goldschmidt
556 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
557 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
559 2011-03-27: Simon Goldschmidt
560 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
561 is present never times out) by starting retransmission timer before checking
564 2011-03-22: Simon Goldschmidt
565 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
566 calling sio_read_abort() if the file descriptor is valid.
568 2011-03-14: Simon Goldschmidt
569 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
570 more than once can render a socket useless) since it mainly involves changing
571 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
573 2011-03-13: Simon Goldschmidt
574 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
575 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
576 use EALRADY instead of -1
578 2011-03-13: Simon Goldschmidt
579 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
580 connection has been aborted by err_tcp (since this is not a normal closing
583 2011-03-13: Simon Goldschmidt
584 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
585 with pcb->state != CLOSED
587 2011-02-17: Simon Goldschmidt
588 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
591 2011-02-17: Simon Goldschmidt
592 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
594 2011-01-24: Simon Goldschmidt
595 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
597 2010-12-02: Simon Goldschmidt
598 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
600 2010-11-23: Simon Goldschmidt
601 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
602 LWIP_SO_RCVBUF and ioctl/FIONREAD.
604 2010-11-23: Simon Goldschmidt
605 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
606 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
608 2010-11-23: Simon Goldschmidt
609 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
610 refusing 'refused_data' again.
612 2010-11-22: Simon Goldschmidt
613 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
614 after a successful nonblocking connection.
616 2010-11-22: Simon Goldschmidt
617 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
618 must be sent link-local
620 2010-11-22: Simon Goldschmidt
621 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
624 2010-11-20: Simon Goldschmidt
625 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
627 2010-11-20: Simon Goldschmidt
628 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
629 resemble other stacks.
631 2010-11-20: Simon Goldschmidt
632 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
633 no-copy TCP writes will never succeed.
635 2010-11-20: Simon Goldschmidt
636 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
637 not match documentation: return ERR_ARG instead of ERR_VAL if not
638 initialized or wrong argument.
640 2010-10-20: Simon Goldschmidt
641 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
643 2010-10-05: Simon Goldschmidt
644 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
645 replugging the network cable after an AutoIP address was assigned.
647 2010-08-10: Simon Goldschmidt
648 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
650 2010-08-03: Simon Goldschmidt
651 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
653 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
654 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
655 endian architectures)
657 2010-07-28: Simon Goldschmidt
658 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
661 2010-07-27: Simon Goldschmidt
662 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
663 harm but never did anything
665 2010-07-21: Simon Goldschmidt
666 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
669 2010-07-16: Kieran Mansley
670 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
672 2010-07-10: Simon Goldschmidt
673 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
675 2010-06-30: Simon Goldschmidt
676 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
679 2010-06-28: Kieran Mansley
680 * timers.c remove unportable printing of C function pointers
682 2010-06-24: Simon Goldschmidt
683 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
684 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
686 2010-06-24: Simon Goldschmidt
687 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
688 implemented shutdown at socket level.
690 2010-06-21: Simon Goldschmidt
691 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
692 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
693 custom pbufs that reference other (original) pbufs. Additionally set
694 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
696 2010-06-15: Simon Goldschmidt
697 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
699 2010-06-14: Simon Goldschmidt
700 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
702 2010-06-12: Simon Goldschmidt
703 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
706 2010-05-17: Simon Goldschmidt
707 * netdb.c: Correctly NULL-terminate h_addr_list
709 2010-05-16: Simon Goldschmidt
710 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
711 "symbol already defined" i.e. when linking to winsock
713 2010-05-05: Simon Goldschmidt
714 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
717 2010-04-21: Simon Goldschmidt
718 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
721 2010-03-28: Luca Ceresoli
722 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
724 2010-03-27: Luca Ceresoli
725 * mib2.c: patch #7130: remove meaningless const qualifiers
727 2010-03-26: Simon Goldschmidt
728 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
730 2010-03-26: Simon Goldschmidt
731 * various files: Fixed compiling with different options disabled (TCP/UDP),
732 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
734 2010-03-25: Simon Goldschmidt
735 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
737 2010-03-25: Simon Goldschmidt
738 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
739 overrunning our rcv_wnd in ooseq case.
741 2010-03-22: Simon Goldschmidt
742 * tcp.c: tcp_listen() did not copy the pcb's prio.
744 2010-03-19: Simon Goldschmidt
745 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
747 2010-03-14: Simon Goldschmidt
748 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
749 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
750 and basing PBUF_LINK_HLEN on it.
752 2010-03-08: Simon Goldschmidt
753 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
754 when assiging routable address): when checking incoming packets and
755 aborting existing connection on address change, filter out link-local
758 2010-03-06: Simon Goldschmidt
759 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
761 2010-03-06: Simon Goldschmidt
762 * ipv4/ip.c: Don't try to forward link-local addresses
764 2010-03-06: Simon Goldschmidt
765 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
768 2010-03-05: Simon Goldschmidt
769 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
772 2010-03-05: Simon Goldschmidt
773 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
774 into multiple calls to tcp_write.
776 2010-02-21: Simon Goldschmidt
777 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
778 the implementation of DNS_USES_STATIC_BUF==1)
780 2010-02-20: Simon Goldschmidt
781 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
782 close() vs. shutdown(). Now the application does not get any more
783 recv callbacks after calling tcp_close(). Added tcp_shutdown().
785 2010-02-19: Simon Goldschmidt
786 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
787 confusion with realloc()
789 2010-02-15: Simon Goldschmidt/Stephane Lesage
790 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
793 2010-02-14: Simon Goldschmidt
794 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
795 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
796 admin-status of a netif are up
798 2010-02-14: Simon Goldschmidt
799 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
800 reception and is not really necessary
802 2010-02-14: Simon Goldschmidt
803 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
804 request was directed as us (RFC 826, Packet Reception), otherwise
805 only update existing entries; internalized some functions
807 2010-02-14: Simon Goldschmidt
808 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
809 disabled on netif used for PPPoE) by adding a new netif flag
810 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
811 device but prevents usage of ARP (so that ethernet_input can be used
814 2010-02-12: Simon Goldschmidt
815 * netif.c: netif_set_link_up/down: only do something if the link state
818 2010-02-12: Simon Goldschmidt/Stephane Lesage
819 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
822 2010-02-12: Simon Goldschmidt
823 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
825 2010-02-09: Simon Goldschmidt
826 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
827 (recv() makes receive window update for data that wasn't received by
830 2010-02-09: Simon Goldschmidt/Stephane Lesage
831 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
832 or any netconn_recv() error)
834 2010-02-09: Simon Goldschmidt
835 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
837 2010-02-09: Simon Goldschmidt
838 * netif.c: For loopback packets, adjust the stats- and snmp-counters
839 for the loopback netif.
841 2010-02-08: Simon Goldschmidt
842 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
843 since they are not used anywhere else.
845 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
846 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
847 (patch from bug #28798)
849 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
850 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
851 another bug when LWIP_RAND() returns zero.
853 2010-02-04: Simon Goldschmidt
854 * nearly every file: Use macros defined in ip_addr.h (some of them new)
855 to work with IP addresses (preparation for bug #27352 - Change ip_addr
856 from struct to typedef (u32_t) - and better code).
858 2010-01-31: Simon Goldschmidt
859 * netif.c: Don't call the link-callback from netif_set_up/down() since
860 this invalidly retriggers DHCP.
862 2010-01-29: Simon Goldschmidt
863 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
864 portability file inet.h and its contents from the stack: moved htonX-
865 functions to def.h (and the new def.c - they are not ipv4 dependent),
866 let inet.h depend on ip_addr.h and not the other way round.
867 This fixes bug #28732.
869 2010-01-28: Kieran Mansley
870 * tcp.c: Ensure ssthresh >= 2*MSS
872 2010-01-27: Simon Goldschmidt
873 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
874 callback can lead to accessing unallocated memory. As a consequence,
875 ERR_ABRT means the application has called tcp_abort()!
877 2010-01-25: Simon Goldschmidt
878 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
879 not implemented in SNMP): write-only or not-accessible are still
880 returned by getnext (though not by get)
882 2010-01-24: Simon Goldschmidt
883 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
884 not use reserved C/C++ keywords
886 2010-01-23: Simon Goldschmidt
887 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
890 2010-01-21: Simon Goldschmidt
891 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
892 if tcp_enqueue fails) both in raw- and netconn-API
894 2010-01-19: Simon Goldschmidt
895 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
897 2010-01-18: Iordan Neshev/Simon Goldschmidt
898 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
899 bugfix backports from 2.4.x.
901 2010-01-18: Simon Goldschmidt
902 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
904 2010-01-17: Simon Goldschmidt
905 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
906 task #10102: "netconn: clean up conn->err threading issues" by adding
907 error return value to struct api_msg_msg
909 2010-01-17: Simon Goldschmidt
910 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
911 to return err_t (bugs #27709 and #28087)
913 2010-01-14: Simon Goldschmidt
914 * ...: Use typedef for function prototypes throughout the stack.
916 2010-01-13: Simon Goldschmidt
917 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
918 window = 0) by correctly draining recvmbox/acceptmbox
920 2010-01-11: Simon Goldschmidt
921 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
922 erroneous callbacks) by copying the code from recent pppd
924 2010-01-10: Simon Goldschmidt
925 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
927 2010-01-10: Simon Goldschmidt
928 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
930 2010-01-08: Simon Goldschmidt
931 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
933 2010-01-08: Simon Goldschmidt
934 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
935 passed to dns_local_addhost() might be volatile
937 2010-01-07: Simon Goldschmidt
938 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
940 2010-01-06: Simon Goldschmidt
941 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
943 2009-12-31: Simon Goldschmidt
944 * many ppp files: Reorganised PPP source code from ucip structure to pppd
945 structure to easily compare our code against the pppd code (around v2.3.1)
947 2009-12-27: Simon Goldschmidt
948 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
956 2009-10-27 Simon Goldschmidt/Stephan Lesage
957 * netifapi.c/.h: Added netifapi_netif_set_addr()
959 2009-10-07 Simon Goldschmidt/Fabian Koch
960 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
961 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
963 2009-08-26 Simon Goldschmidt/Simon Kallweit
964 * slipif.c/.h: bug #26397: SLIP polling support
966 2009-08-25 Simon Goldschmidt
967 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
968 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
970 2009-08-25 Simon Goldschmidt
971 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
973 2009-08-24 Jakob Stoklund Olesen
974 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
975 to netif_set_link_up().
977 2009-08-23 Simon Goldschmidt
978 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
979 to a human-readable string.
983 2009-12-24: Kieran Mansley
984 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
987 2009-12-06: Simon Goldschmidt
988 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
989 be statically allocated (like in ucip)
991 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
992 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
994 2009-12-03: Simon Goldschmidt
995 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
996 could have non-zero length
998 2009-12-02: Simon Goldschmidt
999 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
1000 tcp_input_pcb until after calling the pcb's callbacks
1002 2009-11-29: Simon Goldschmidt
1003 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
1004 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
1006 2009-11-29: Simon Goldschmidt
1007 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1008 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1010 2009-11-26: Simon Goldschmidt
1011 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1014 2009-11-26: Simon Goldschmidt
1015 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1016 algorithm at PCB level
1018 2009-11-22: Simon Goldschmidt
1019 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1021 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1022 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1023 reusing time-wait pcb
1025 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1026 * sockets.c: Fixed bug #28062: Data received directly after accepting
1027 does not wake up select
1029 2009-11-11: Simon Goldschmidt
1030 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1032 2009-10-30: Simon Goldschmidt
1033 * opt.h: Increased default value for TCP_MSS to 536, updated default
1034 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1036 2009-10-28: Kieran Mansley
1037 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1038 to follow algorithm from TCP/IP Illustrated
1040 2009-10-27: Kieran Mansley
1041 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1043 2009-10-25: Simon Goldschmidt
1044 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1045 pcb->recv is NULL to keep rcv_wnd correct)
1047 2009-10-25: Simon Goldschmidt
1048 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1050 2009-10-23: Simon Goldschmidt (David Empson)
1051 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1053 2009-10-21: Simon Goldschmidt
1054 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1055 trailing 1 byte len (SYN/FIN)
1057 2009-10-21: Simon Goldschmidt
1058 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1060 2009-10-19: Simon Goldschmidt
1061 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1062 conditional code to assert where applicable), check pbuf length before
1063 testing for valid reply
1065 2009-10-19: Simon Goldschmidt
1066 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1067 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1069 2009-10-16: Simon Goldschmidt
1070 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1071 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1074 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1075 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1077 2009-10-15: Simon Goldschmidt
1078 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1081 2009-10-15: Simon Goldschmidt
1082 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1083 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1084 of network byte order
1086 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1087 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1088 which are not consecutive when retransmitting unacked segments
1090 2009-10-09 Simon Goldschmidt
1091 * opt.h: Fixed default values of some stats to only be enabled if used
1092 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1094 2009-08-30 Simon Goldschmidt
1095 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1096 function" by checking for loopback before calling ip_frag
1098 2009-08-25 Simon Goldschmidt
1099 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1101 2009-08-23 Simon Goldschmidt
1102 * ppp.c: bug #27078: Possible memory leak in pppInit()
1104 2009-08-23 Simon Goldschmidt
1105 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1108 2009-08-23 Simon Goldschmidt
1109 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1110 Fixed wrong parenthesis, added check in init.c
1112 2009-08-23 Simon Goldschmidt
1113 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1115 2009-08-23 Simon Goldschmidt
1116 * many ppp files: bug #27267: Added include to string.h where needed
1118 2009-08-23 Simon Goldschmidt
1119 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1126 2009-05-10 Simon Goldschmidt
1127 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1128 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1129 one pbuf to help MACs that don't support scatter-gather DMA.
1131 2009-05-09 Simon Goldschmidt
1132 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1133 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1135 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1136 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1137 extended info about the currently received packet.
1139 2009-04-27 Simon Goldschmidt
1140 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1142 2009-04-25 Simon Goldschmidt
1143 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1144 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1146 2009-04-21 Simon Goldschmidt
1147 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1148 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1149 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1150 as an external function for lookup.
1152 2009-04-15 Simon Goldschmidt
1153 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1155 2009-03-31 Kieran Mansley
1156 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1157 TCP timestamp options, off by default. Rework tcp_enqueue() to
1158 take option flags rather than specified option data
1160 2009-02-18 Simon Goldschmidt
1161 * cc.h: Added printf formatter for size_t: SZT_F
1163 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1164 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1167 2009-02-12 Simon Goldschmidt
1168 * init.h: Added LWIP_VERSION to get the current version of the stack
1170 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1171 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1172 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1175 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1176 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1177 is only used by UDPLITE at present, so conditionalise it.
1179 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1180 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1181 "seed" address. This should reduce AUTOIP conflicts if
1182 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1184 2008-10-02 Jonathan Larmour and Rishi Khan
1185 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1188 2008-06-30 Simon Goldschmidt
1189 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1190 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1191 mem_free to run between mem_malloc iterations. Added illegal counter for
1194 2008-06-27 Simon Goldschmidt
1195 * stats.h/.c, some other files: patch #6483: stats module improvement:
1196 Added defines to display each module's statistic individually, added stats
1197 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1199 2008-06-17 Simon Goldschmidt
1200 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1201 (define LWIP_ERR_T in cc.h)
1203 2008-06-17 Simon Goldschmidt
1204 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1207 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1208 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1209 modified version of patch # 6370: Moved loopif code to netif.c so that
1210 loopback traffic is supported on all netifs (all local IPs).
1211 Added option to limit loopback packets for each netifs.
1215 2009-08-12 Kieran Mansley
1216 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1217 out of window or out of order properly
1219 2009-08-12 Kieran Mansley
1220 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1222 2009-07-28 Simon Goldschmidt
1223 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1225 2009-07-27 Kieran Mansley
1226 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1228 2009-07-09 Kieran Mansley
1229 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1230 recv_avail and don't increment counters until message successfully
1233 2009-06-25 Kieran Mansley
1234 * api_msg.c api.h: BUG26722: initialise netconn write variables
1237 2009-06-25 Kieran Mansley
1238 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1240 2009-06-25 Kieran Mansley
1241 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1242 simultaneous close behaviour, and make snd_nxt have the same meaning
1245 2009-05-12 Simon Goldschmidt
1246 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1247 arp_table / uses etharp_query" by adding etharp_gratuitous()
1249 2009-05-12 Simon Goldschmidt
1250 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1251 to the IP header (used by igmp_ip_output_if)
1253 2009-05-06 Simon Goldschmidt
1254 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1255 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1257 2009-05-05 Simon Goldschmidt
1258 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1261 2009-05-04 Simon Goldschmidt
1262 * init.c: snmp was not initialized in lwip_init()
1264 2009-05-04 Frédéric Bernon
1265 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1267 2009-05-03 Simon Goldschmidt
1268 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1269 (and unsent->next == NULL)
1271 2009-05-02 Simon Goldschmidt
1272 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1273 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1275 2009-05-02 Simon Goldschmidt
1276 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1278 2009-05-01 Simon Goldschmidt
1279 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1281 2009-05-01 Simon Goldschmidt
1282 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1284 2009-04-29 Frédéric Bernon
1285 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1286 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1287 of broadcast packets even when this option wasn't set. Port maintainers
1288 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1289 If you want this option also filter broadcast on recv operations, you also
1290 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1292 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1293 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1294 DHCP/AUTOIP cooperation
1296 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1297 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1298 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1299 right place in tcp_output and tcp_rexmit).
1301 2009-04-25 Simon Goldschmidt
1302 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1303 when debugging": memp_sizes contained the wrong sizes (including sanity
1304 regions); memp pools for MEM_USE_POOLS were too small
1306 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1307 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1308 behavior, with with ip address string not ended by a '\0', a space or a
1311 2009-04-19 Simon Goldschmidt
1312 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1313 pcb->err is called, not pcb->connected (with an error code).
1315 2009-04-19 Simon Goldschmidt
1316 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1317 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1319 2009-04-19 Simon Goldschmidt
1320 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1321 in the header pbuf, not the data pbuf)
1323 2009-04-18 Simon Goldschmidt
1324 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1326 2009-04-15 Simon Goldschmidt
1327 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1329 2009-04-15 Simon Goldschmidt
1330 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1332 2009-04-15 Simon Goldschmidt
1333 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1334 ip_hinted_output() (for smaller code mainly)
1336 2009-04-15 Simon Goldschmidt
1337 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1339 2009-04-15 Simon Goldschmidt
1340 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1341 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1342 is big enough in dhcp_start
1344 2009-04-15 Simon Goldschmidt
1345 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1347 2009-04-15 Simon Goldschmidt
1348 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1350 2009-04-15 Simon Goldschmidt
1351 * sockets.c: bug #26121: set_errno can be overridden
1353 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1354 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1357 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1358 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1361 2009-03-31 Kieran Mansley
1362 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1363 updates are calculated and sent (BUG20515)
1365 * tcp_in.c: cope with SYN packets received during established states,
1366 and retransmission of initial SYN.
1368 * tcp_out.c: set push bit correctly when tcp segments are merged
1370 2009-03-27 Kieran Mansley
1371 * tcp_out.c set window correctly on probes (correcting change made
1374 2009-03-26 Kieran Mansley
1375 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1376 connections where no reset required (bug #25622)
1378 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1381 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1382 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1383 too small depending on MEM_ALIGNMENT
1385 2009-02-16 Simon Goldschmidt
1386 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1387 converted size argument of netconn_write to 'size_t'
1389 2009-02-16 Simon Goldschmidt
1390 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1391 by moving accept callback function pointer to TCP_PCB_COMMON
1393 2009-02-12 Simon Goldschmidt
1394 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1397 2009-02-11 Simon Goldschmidt
1398 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1400 2009-02-11 Simon Goldschmidt
1401 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1402 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1404 2009-02-10 Simon Goldschmidt
1405 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1406 Accepts_pending is decrease on a corresponding listen pcb when a connection
1407 in state SYN_RCVD is close.
1409 2009-01-28 Jonathan Larmour
1410 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1413 2008-12-19 Simon Goldschmidt
1414 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1416 2008-12-10 Tamas Somogyi, Frédéric Bernon
1417 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1418 port uses deleted netbuf.
1420 2008-10-18 Simon Goldschmidt
1421 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1424 2008-10-15 Simon Goldschmidt
1425 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1426 by packing the struct ip_reass_helper.
1428 2008-10-03 David Woodhouse, Jonathan Larmour
1429 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1431 2008-10-02 Jonathan Larmour
1432 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1433 padding is included.
1435 2008-09-30 Jonathan Larmour
1436 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1437 assertion check that addrlen isn't NULL.
1439 2008-09-30 Jonathan Larmour
1440 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1442 2008-08-26 Simon Goldschmidt
1443 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1444 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1446 2008-08-14 Simon Goldschmidt
1447 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1448 tcp_close returns != ERR_OK)
1450 2008-07-08 Frédéric Bernon
1451 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1452 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1454 2008-06-24 Jonathan Larmour
1455 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1456 if tcp_seg_copy fails.
1458 2008-06-17 Simon Goldschmidt
1459 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1460 and created defines for swapping bytes and folding u32 to u16.
1462 2008-05-30 Kieran Mansley
1463 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1464 rather than rcv_ann_wnd when deciding if packets are in-window.
1465 Contributed by <arasmussen@consultant.datasys.swri.edu>
1467 2008-05-30 Kieran Mansley
1468 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1469 passing as function pointers when MEM_LIBC_MALLOC is defined.
1471 2008-05-09 Jonathan Larmour
1472 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1473 stop it being treated as a fatal error.
1475 2008-04-15 Simon Goldschmidt
1476 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1479 2008-03-27 Simon Goldschmidt
1480 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1481 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1482 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1483 or heap memory from interrupt context
1485 2008-03-26 Simon Goldschmidt
1486 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1487 host sent a zero mss as TCP option.
1494 2008-03-10 Jonathan Larmour
1495 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1496 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1498 2008-01-22 Frédéric Bernon
1499 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1500 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1502 2008-01-14 Frédéric Bernon
1503 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1504 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1505 tcp_recv callback (see rawapi.txt).
1507 2008-01-14 Frédéric Bernon, Marc Chaland
1508 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1510 2008-01-12 Frédéric Bernon
1511 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1512 netconn::sem per netconn::op_completed like suggested for the task #7490
1513 "Add return value to sys_mbox_post".
1515 2008-01-12 Frédéric Bernon
1516 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1517 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1518 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1520 2008-01-10 Frédéric Bernon
1521 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1522 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1523 "blocking" ("block" parameter = 1).
1525 2008-01-10 Frédéric Bernon
1526 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1527 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1528 "Add return value to sys_mbox_post".
1530 2008-01-05 Frédéric Bernon
1531 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1532 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1533 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1534 indicate the number of pointers query by the mailbox. There is three defines
1535 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1536 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1537 parameter in your implementation, but to ignore it to keep the previous behavior.
1538 The new sys_mbox_trypost function return a value to know if the mailbox is
1539 full or if the message is posted. Take a look to sys_arch.txt for more details.
1540 This new function is used in tcpip_input (so, can be called in an interrupt
1541 context since the function is not blocking), and in recv_udp and recv_raw.
1543 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1544 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1545 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1546 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1547 documentation in the rawapi.txt file.
1549 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1550 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1552 2007-12-31 Frédéric Bernon, Luca Ceresoli
1553 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1554 in autoip". The change in etharp_raw could be removed, since all calls to
1555 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1556 wrong in the future.
1558 2007-12-30 Frédéric Bernon, Tom Evans
1559 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1560 Filtering" reported by Tom Evans.
1562 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1563 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1564 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1565 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1566 keep accepting new connections.
1568 2007-12-13 Frédéric Bernon
1569 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1570 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1572 2007-12-12 Frédéric Bernon
1573 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1574 are the one which have ram usage.
1576 2007-12-05 Frédéric Bernon
1577 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1578 set of variables (=0) or a local one (=1). In this last case, your port should
1579 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1580 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1582 2007-12-03 Simon Goldschmidt
1583 * ip.c: ip_input: check if a packet is for inp first before checking all other
1584 netifs on netif_list (speeds up packet receiving in most cases)
1586 2007-11-30 Simon Goldschmidt
1587 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1588 UDP: move a (connected) pcb selected for input to the front of the list of
1589 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1592 2007-11-28 Simon Goldschmidt
1593 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1595 2007-11-25 Simon Goldschmidt
1596 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1599 2007-11-24 Simon Goldschmidt
1600 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1601 to the new file netdb.c; included lwip_getaddrinfo.
1603 2007-11-21 Simon Goldschmidt
1604 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1605 based on the MTU of the netif used to send. Enabled by default. Disable by
1606 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1608 2007-11-19 Frédéric Bernon
1609 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1610 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1611 copy dns payload to parse the response), return an error if there is no place
1612 for a new query, and fix some minor problems.
1614 2007-11-16 Simon Goldschmidt
1615 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1616 removed files: core/inet.c, core/inet6.c
1617 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1618 inet and chksum part; changed includes in all lwIP files as appropriate
1620 2007-11-16 Simon Goldschmidt
1621 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1622 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1623 (gethostbyname/gethostbyname_r).
1625 2007-11-15 Jim Pettinato, Frédéric Bernon
1626 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1627 requests with RAW api interface. Initialization is done in lwip_init() with
1628 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1629 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1630 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1631 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1632 list with points to improve.
1634 2007-11-06 Simon Goldschmidt
1635 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1636 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1637 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1639 2007-11-06 Simon Goldschmidt
1640 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1641 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1642 implementation from netconn api applications.
1644 2007-11-03 Frédéric Bernon
1645 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1646 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1647 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1648 it. This is a first release which have to be improve for TCP. Note it used the
1649 netconn::recv_avail which need to be more "thread-safe" (note there is already
1650 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1652 2007-11-01 Frédéric Bernon, Marc Chaland
1653 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1654 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1655 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1656 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1657 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1659 2007-10-24 Frédéric Bernon
1660 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1661 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1662 some code (like we have talk in "patch #5919 : Create compile switch to remove
1663 select code"), but it could be done later.
1665 2007-10-08 Simon Goldschmidt
1666 * many files: Changed initialization: many init functions are not needed any
1667 more since we now rely on the compiler initializing global and static
1670 2007-10-06 Simon Goldschmidt
1671 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1672 to enqueue the received pbufs so that multiple packets can be reassembled
1673 simultaneously and no static reassembly buffer is needed.
1675 2007-10-05 Simon Goldschmidt
1676 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1677 all netifs (or ports) can use it.
1679 2007-10-05 Frédéric Bernon
1680 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1681 common function to reduce a little bit the footprint (for all functions using
1682 only the "netif" parameter).
1684 2007-10-03 Frédéric Bernon
1685 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1686 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1687 a little bit the footprint (for all functions using only the "netif" parameter).
1689 2007-09-15 Frédéric Bernon
1690 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1691 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1692 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1693 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1695 2007-09-10 Frédéric Bernon
1696 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1697 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1698 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1699 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1700 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1701 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1702 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1703 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1704 when it's queried (any direct call to "sysuptime" is changed by a call to
1705 snmp_get_sysuptime).
1707 2007-09-09 Frédéric Bernon, Bill Florac
1708 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1709 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1710 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1711 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1712 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1713 the next query message to receive the matching multicast streams).
1715 2007-09-08 Frédéric Bernon
1716 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1717 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1718 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1719 Enable to access to these fields with LWIP_TCP=0.
1721 2007-09-05 Frédéric Bernon
1722 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1723 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1724 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1725 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1726 help to reduce footprint, and to reduce "visibility" on the Internet.
1728 2007-09-05 Frédéric Bernon, Bill Florac
1729 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1730 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1731 parameters have to be provided: a task name, and a task stack size. For this
1732 one, since it's platform dependant, you could define the best one for you in
1733 your lwipopts.h. For port maintainers, you can just add these new parameters
1734 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1737 2007-09-05 Frédéric Bernon
1738 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1739 inside init.c for task #7142 "Sanity check user-configurable values".
1741 2007-09-04 Frédéric Bernon, Bill Florac
1742 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1743 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1744 value). It will avoid potential fragmentation problems, use a counter to know
1745 how many times a group is used on an netif, and free it when all applications
1746 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1747 check if LWIP_IGMP!=0).
1749 2007-09-03 Frédéric Bernon
1750 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1751 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1752 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1753 and/or the "interface" field (for netconn layer), for join/leave operations.
1754 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1755 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1757 2007-08-30 Frédéric Bernon
1758 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1759 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1760 with other API (application based on raw API, or future "socket2" API). Ports
1761 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1763 2007-08-30 Frédéric Bernon, Jonathan Larmour
1764 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1765 user-configurable values".
1767 2007-08-29 Frédéric Bernon
1768 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1769 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1770 spirit than the others modules. Modify some IGMP debug traces.
1772 2007-08-29 Frédéric Bernon
1773 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1774 Add lwip_init function to regroup all modules initializations, and to provide
1775 a place to add code for task #7142 "Sanity check user-configurable values".
1776 Ports maintainers should remove direct initializations calls from their code,
1777 and add init.c in their makefiles. Note that lwip_init() function is called
1778 inside tcpip_init, but can also be used by raw api users since all calls are
1779 disabled when matching options are disabled. Also note that their is new options
1780 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1782 2007-08-26 Marc Boucher
1783 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1784 since they can under certain circumstances be called with an invalid conn
1785 pointer after the connection has been closed (and conn has been freed).
1787 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1788 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1789 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1791 2007-08-22 Frédéric Bernon
1792 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1793 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1795 2007-08-22 Frédéric Bernon
1796 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1797 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1798 name is tcpip_input (we keep the name of 1.2.0 function).
1800 2007-08-17 Jared Grubb
1801 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1802 settings into new memp_std.h and optional user file lwippools.h. This adds
1803 more dynamic mempools, and allows the user to create an arbitrary number of
1804 mempools for mem_malloc.
1806 2007-08-16 Marc Boucher
1807 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1808 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1809 close the connection.
1811 2007-08-16 Marc Boucher
1812 * sockets.c: lwip_accept(): check netconn_peer() error return.
1814 2007-08-16 Marc Boucher
1815 * mem.c, mem.h: Added mem_calloc().
1817 2007-08-16 Marc Boucher
1818 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1819 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1820 and starving other message types.
1821 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1823 2007-08-16 Marc Boucher
1824 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1825 type and flgs (later renamed to flags).
1826 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1827 Improved lwip_recvfrom(). TCP push now propagated.
1829 2007-08-16 Marc Boucher
1830 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1833 2007-08-16 Marc Boucher
1834 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1835 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1836 Added PPPoE support and various PPP improvements.
1838 2007-07-25 Simon Goldschmidt
1839 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1840 making netbuf_copy_partial use this function.
1842 2007-07-25 Simon Goldschmidt
1843 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1844 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1847 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1848 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1849 a link callback in the netif struct, and functions to handle it. Be carefull
1850 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1851 if you want to be sure to be compatible with future changes...
1853 2007-06-30 Frédéric Bernon
1854 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1856 2007-06-21 Simon Goldschmidt
1857 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1858 LWIP_AUTOIP =0 and =1 to remove redundant code.
1860 2007-06-21 Simon Goldschmidt
1861 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1862 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1863 heap. This both prevents memory fragmentation and gives a higher speed
1864 at the cost of more memory consumption. Turned off by default.
1866 2007-06-21 Simon Goldschmidt
1867 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1868 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1869 int to be able to send a bigger buffer than 64K with one time (mainly
1870 used from lwip_send).
1872 2007-06-21 Simon Goldschmidt
1873 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1874 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1876 2007-06-21 Simon Goldschmidt
1877 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1878 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1879 changes on low memory or empty send-buffer.
1881 2007-06-18 Simon Goldschmidt
1882 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1883 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1884 used for ethernet and struct eth_addr already had a defined length of 6).
1886 2007-06-17 Simon Goldschmidt
1887 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1888 to disable UDP checksum generation on transmit.
1890 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1891 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1892 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1893 this macro to check "conn" parameter in api_msg.c functions.
1895 2007-06-11 Simon Goldschmidt
1896 * sockets.c, sockets.h: Added UDP lite support for sockets
1898 2007-06-10 Simon Goldschmidt
1899 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1900 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1903 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1904 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1905 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1906 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1907 (see TODO mark in the source code).
1909 2007-06-09 Simon Goldschmidt
1910 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1911 etharp_output() to match netif->output so etharp_output() can be used
1912 directly as netif->output to save one function call.
1914 2007-06-08 Simon Goldschmidt
1915 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1916 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1917 added initialization of those to ethernetif, slipif and loopif.
1919 2007-05-18 Simon Goldschmidt
1920 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1921 (defaulting to off for now) that can be set to 0 to send fragmented
1922 packets by passing PBUF_REFs down the stack.
1924 2007-05-23 Frédéric Bernon
1925 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1926 connections, such present in patch #5959.
1928 2007-05-23 Frédéric Bernon
1929 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1930 code in only one part...
1932 2007-05-18 Simon Goldschmidt
1933 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1934 elements to overflow. This is achieved by adding some bytes before and after
1935 each pool element (increasing their size, of course), filling them with a
1936 prominent value and checking them on freeing the element.
1937 Set it to 2 to also check every element in every pool each time memp_malloc()
1938 or memp_free() is called (slower but more helpful).
1940 2007-05-10 Simon Goldschmidt
1941 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1942 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1945 2007-05-11 Frédéric Bernon
1946 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1947 Include a function pointer instead of a table index in the message to reduce
1948 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1949 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1951 2007-05-10 Simon Goldschmidt
1952 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1953 \ extern "C" {' in all header files. Now you can write your application using
1954 the lwIP stack in C++ and simply #include the core files. Note I have left
1955 out the netif/ppp/*h header files for now, since I don't know which files are
1956 included by applications and which are for internal use only.
1958 2007-05-09 Simon Goldschmidt
1959 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1960 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1961 situations where some compilers might inline the copy and save a function
1962 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1964 2007-05-08 Simon Goldschmidt
1965 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1966 to be overriden in case the C-library malloc implementation is not protected
1967 against concurrent access.
1969 2007-05-04 Simon Goldschmidt (Atte Kojo)
1970 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1971 multiple packets to the same host.
1973 2007-05-04 Frédéric Bernon, Jonathan Larmour
1974 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1975 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1976 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1977 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1978 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1979 these fields are now renamed "addr" & "port".
1981 2007-04-11 Jonathan Larmour
1982 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1983 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1984 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1985 by the port in sys_arch.h if desired.
1987 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1988 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1989 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1990 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1992 2007-04-05 Frédéric Bernon
1993 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1995 2007-04-04 Simon Goldschmidt
1996 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1997 use this for and architecture-independent form to tell the compiler you intentionally
1998 are not using this variable. Can be overriden in cc.h.
2000 2007-03-28 Frédéric Bernon
2001 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
2002 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
2003 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
2004 It will be used by DHCP to register a client hostname, but can also be use when you call
2007 2007-03-28 Frédéric Bernon
2008 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2009 initialize a network interface's flag with. It tell this interface is an ethernet
2010 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2011 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2013 2007-03-26 Frédéric Bernon, Jonathan Larmour
2014 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2015 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2016 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2017 is done in tcpip_init function.
2019 2007-03-22 Frédéric Bernon
2020 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2021 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2022 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2023 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2024 but never used. Fix msg_in.c with the correct #if test for a stat display.
2026 2007-03-21 Kieran Mansley
2027 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2028 Provides callback on netif up/down state change.
2030 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2031 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2032 ip.c, netif.h, tcpip.c, opt.h:
2033 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2034 filter per all network interfaces. Declare a new function in netif to enable to
2035 control the MAC filter (to reduce lwIP traffic processing).
2037 2007-03-11 Frédéric Bernon
2038 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2039 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2040 unless you know what you're doing (default are RFC1122 compliant). Note
2041 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2043 2007-03-08 Frédéric Bernon
2044 * tcp.h: Keepalive values can be configured at compile time, but don't change
2045 this unless you know what you're doing (default are RFC1122 compliant).
2047 2007-03-08 Frédéric Bernon
2048 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2049 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2050 on UDP sockets/netconn.
2052 2007-03-08 Simon Goldschmidt
2053 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2055 2007-03-06 Frédéric Bernon
2056 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2057 Implement SO_RCVTIMEO on UDP sockets/netconn.
2059 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2060 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2061 on the stack and remove the API msg type from memp
2063 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2064 * sockets.h, sockets.c: Move socket initialization to new
2065 lwip_socket_init() function.
2066 NOTE: this changes the API with ports. Ports will have to be
2067 updated to call lwip_socket_init() now.
2069 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2070 * api_lib.c: Use memcpy in netbuf_copy_partial.
2075 2008-03-17 Frédéric Bernon, Ed Kerekes
2076 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2077 some problems to fill the IP header on some targets, use now the
2078 ip.h macros to do it).
2080 2008-03-13 Frédéric Bernon
2081 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2082 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2083 TCP connection caused a crash. Note that using (lwip_)recvfrom
2084 like this is a bit slow and that using (lwip)getpeername is the
2085 good lwip way to do it (so, using recv is faster on tcp sockets).
2087 2008-03-12 Frédéric Bernon, Jonathan Larmour
2088 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2089 recv_raw() does not consume data", and the ping sample (with
2090 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2091 returned the IP payload, without the IP header).
2093 2008-03-04 Jonathan Larmour
2094 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2095 and/or warnings on some systems where mem_size_t and size_t differ.
2096 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2098 2008-03-04 Kieran Mansley (contributions by others)
2099 * Numerous small compiler error/warning fixes from contributions to
2100 mailing list after 1.3.0 release candidate made.
2102 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2103 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2105 2008-01-15 Kieran Mansley
2106 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2107 prevented from sending by a small send window, not just a zero
2110 2008-01-09 Jonathan Larmour
2111 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2112 conflict with Linux system headers.
2114 2008-01-06 Jonathan Larmour
2115 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2116 address entirely on receiving a DHCPNAK, and restarting discovery.
2118 2007-12-21 Simon Goldschmidt
2119 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2120 is not protected" by using new macros for interlocked access to modify/test
2121 netconn->recv_avail.
2123 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2124 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2126 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2127 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2128 of silly window avoidance and prevent lwIP from shrinking the window)
2130 2007-12-04 Simon Goldschmidt
2131 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2132 data packet was lost): add assert that all segment lists are empty in
2133 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2134 state from LAST_ACK in tcp_process
2136 2007-12-02 Simon Goldschmidt
2137 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2138 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2139 has to be set to 0 in lwipopts.h
2141 2007-12-02 Simon Goldschmidt
2142 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2143 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2144 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2145 This is a fix for thread-safety and allocates all items needed for a netconn
2146 when the netconn is created.
2148 2007-11-30 Simon Goldschmidt
2149 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2150 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2151 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2152 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2154 2007-11-27 Simon Goldschmidt
2155 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2156 letting ip_route only use netifs that are up.
2158 2007-11-27 Simon Goldschmidt
2159 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2160 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2161 sockets block most operations once they have seen a fatal error.
2163 2007-11-27 Simon Goldschmidt
2164 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2165 netif to send as an argument (to be able to send on netifs that are down).
2167 2007-11-26 Simon Goldschmidt
2168 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2171 2007-11-21 Simon Goldschmidt
2172 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2173 Fixed the nagle algorithm; nagle now also works for all raw API applications
2174 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2176 2007-11-12 Frédéric Bernon
2177 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2178 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2179 context in do_getaddr.
2181 2007-11-10 Simon Goldschmidt
2182 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2183 happen any time). Now the packet simply isn't enqueued when out of memory.
2185 2007-11-01 Simon Goldschmidt
2186 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2187 TCP_MSS if that is smaller) as long as no MSS option is received from the
2190 2007-11-01 Simon Goldschmidt
2191 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2192 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2193 sending our configured TCP_MSS instead of the one received).
2195 2007-11-01 Simon Goldschmidt
2196 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2197 calculated based on the configured TCP_MSS, not on the MSS option received
2200 2007-10-09 Simon Goldschmidt
2201 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2202 short and also was generated wrong if checksum coverage != tot_len;
2203 receive: checksum was calculated wrong if checksum coverage != tot_len
2205 2007-10-08 Simon Goldschmidt
2206 * mem.c: lfree was not updated in mem_realloc!
2208 2007-10-07 Frédéric Bernon
2209 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2210 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2211 this change cause an API breakage for netconn_addr, since a parameter
2212 type change. Any compiler should cause an error without any changes in
2213 yours netconn_peer calls (so, it can't be a "silent change"). It also
2214 reduce a little bit the footprint for socket layer (lwip_getpeername &
2215 lwip_getsockname use now a common lwip_getaddrname function since
2216 netconn_peer & netconn_addr have the same parameters).
2218 2007-09-20 Simon Goldschmidt
2219 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2220 by checking tcp_tw_pcbs also
2222 2007-09-19 Simon Goldschmidt
2223 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2225 2007-09-15 Mike Kleshov
2226 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2228 2007-09-06 Frédéric Bernon
2229 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2230 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2231 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2232 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2234 2007-08-30 Frédéric Bernon
2235 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2236 and fix some coding style.
2238 2007-08-28 Frédéric Bernon
2239 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2240 kind of packets. These packets are considered like Ethernet packets (payload
2241 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2242 are considered like IP packets (payload pointing to iphdr).
2244 2007-08-27 Frédéric Bernon
2245 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2246 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2247 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2249 2007-08-24 Kieran Mansley
2250 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2251 compiler (Paradigm C++)
2253 2007-08-09 Frédéric Bernon, Bill Florac
2254 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2255 Introduce IGMP_STATS to centralize statistics management.
2257 2007-08-09 Frédéric Bernon, Bill Florac
2258 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2259 packet on a udp pcb binded on an netif's IP address, and not on "any".
2261 2007-08-09 Frédéric Bernon, Bill Florac
2262 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2263 This is mainly on using lookup/lookfor, and some coding styles...
2265 2007-07-26 Frédéric Bernon (and "thedoctor")
2266 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2268 2007-07-25 Simon Goldschmidt
2269 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2270 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2271 (tcp_output is called again later from tcp timers).
2273 2007-07-25 Simon Goldschmidt
2274 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2275 copy_from_pbuf, which illegally modified the given pbuf.
2277 2007-07-25 Simon Goldschmidt
2278 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2279 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2281 2007-07-24 Simon Goldschmidt
2282 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2283 correct state (must be CLOSED).
2285 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2286 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2287 allocation. It now returns NULL.
2289 2007-07-13 Frédéric Bernon
2290 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2293 2007-07-13 Frédéric Bernon
2294 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2295 because current code doesn't follow rawapi.txt documentation.
2297 2007-07-13 Kieran Mansley
2298 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2299 out of sequence processing of received packets
2301 2007-07-03 Simon Goldschmidt
2302 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2303 assumption is made that this pbuf is in one piece (i.e. not chained). These
2304 assumptions clash with the possibility of converting to fully pool-based
2305 pbuf implementations, where PBUF_RAM pbufs might be chained.
2307 2007-07-03 Simon Goldschmidt
2308 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2309 when closing tcp netconns: removed conn->sem, less context switches when
2310 closing, both netconn_close and netconn_delete should safely close tcp
2313 2007-07-02 Simon Goldschmidt
2314 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2315 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2316 to cache ARP table indices with each pcb instead of single-entry cache for
2319 2007-07-02 Simon Goldschmidt
2320 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2321 warnings when assigning to smaller types.
2323 2007-06-28 Simon Goldschmidt
2324 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2326 2007-06-28 Simon Goldschmidt
2327 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2328 a segment contained chained pbufs)
2330 2007-06-28 Frédéric Bernon
2331 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2332 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2333 possible to define this macro in your own lwipopts.h to always use C library's
2334 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2336 2007-06-28 Frédéric Bernon
2337 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2338 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2339 in api_lib/api_msg (use pointers and not type with table, etc...)
2341 2007-06-26 Simon Goldschmidt
2342 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2344 2007-06-25 Simon Goldschmidt
2345 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2346 for udp packets with no matching pcb.
2348 2007-06-25 Simon Goldschmidt
2349 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2350 could get udp input packets if the remote side matched.
2352 2007-06-13 Simon Goldschmidt
2353 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2354 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2356 2007-06-13 Simon Goldschmidt
2357 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2358 -> netconn_new_..() does not allocate a new connection for unsupported
2361 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2362 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2363 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2365 2007-06-13 Frédéric Bernon, Matthias Weisser
2366 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2367 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2368 some macro names collision with some OS macros.
2370 2007-06-11 Simon Goldschmidt
2371 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2372 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2373 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2376 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2377 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2378 where TCP flags wasn't initialized in tcp_keepalive.
2380 2007-06-03 Simon Goldschmidt
2381 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2382 registered, p->payload was modified without modifying p->len if sending
2383 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2385 2007-06-03 Simon Goldschmidt
2386 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2387 re-used the input pbuf even if that didn't have enough space to include the
2388 link headers. Now the space is tested and a new pbuf is allocated for the
2389 echo response packet if the echo request pbuf isn't big enough.
2391 2007-06-01 Simon Goldschmidt
2392 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2394 2007-05-23 Frédéric Bernon
2395 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2396 allocated by do_listen if success) and netconn_accept errors handling. In
2397 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2398 by ASSERT, except for netconn_delete.
2400 2007-05-23 Frédéric Bernon
2401 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2402 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2403 directly close the recvmbox).
2405 2007-05-22 Simon Goldschmidt
2406 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2407 bound but unconnected (and non-listening) tcp_pcbs.
2409 2007-05-22 Frédéric Bernon
2410 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2411 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2412 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2413 like "sys_timeout" in their application threads.
2415 2007-05-22 Frédéric Bernon
2416 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2417 which parameters are used by which do_xxx function, and to avoid "misusing"
2418 parameters (patch #5938).
2420 2007-05-22 Simon Goldschmidt
2421 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2422 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2423 is only 8 bits wide. This affects the api, as there, the protocol was
2426 2007-05-18 Simon Goldschmidt
2427 * memp.c: addition to patch #5913: smaller pointer was returned but
2428 memp_memory was the same size -> did not save memory.
2430 2007-05-16 Simon Goldschmidt
2431 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2434 2007-05-16 Simon Goldschmidt
2435 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2436 as the one of the netif used for sending to prevent sending from old
2437 addresses after a netif address gets changed (partly fixes bug #3168).
2439 2007-05-16 Frédéric Bernon
2440 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2441 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2442 tcpip_init) because we have to be sure that network interfaces are already
2443 added (mac filter is updated only in igmp_init for the moment).
2445 2007-05-16 Simon Goldschmidt
2446 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2447 into sys_arch_sem_wait calls to prevent timers from running while waiting
2448 for the heap. This fixes bug #19167.
2450 2007-05-13 Simon Goldschmidt
2451 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2452 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2455 2007-05-07 Simon Goldschmidt
2456 * mem.c: Another attempt to fix bug #17922.
2458 2007-05-04 Simon Goldschmidt
2459 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2460 implementation so that it can be reused (don't allocate the target
2461 pbuf inside pbuf_copy()).
2463 2007-05-04 Simon Goldschmidt
2464 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2465 to save a little RAM (next pointer of memp is not used while not in pool).
2468 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2471 2007-04-23 Simon Goldschmidt
2472 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2473 in NULL reference for incoming TCP packets". Loopif has to be configured
2474 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2475 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2476 putting packets on a list that is fed to the stack by calling loopif_poll()
2477 (single-thread / NO_SYS / polling environment where e.g.
2478 netif->input() = ip_input).
2480 2007-04-17 Jonathan Larmour
2481 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2482 the difference between two u16_t's.
2483 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2484 MEMP_NUM_NETCONN in sockets.c right now.
2486 2007-04-12 Jonathan Larmour
2487 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2489 2007-04-12 Kieran Mansley
2490 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2491 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2493 2007-04-11 Simon Goldschmidt
2494 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2495 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2496 pbuf.c: removed functions no needed any more (by etharp).
2498 2007-04-11 Kieran Mansley
2499 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2500 "Constant is long" warnings with 16bit compilers. Contributed by
2501 avatar@mmlab.cse.yzu.edu.tw
2503 2007-04-05 Frédéric Bernon, Jonathan Larmour
2504 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2505 the mailbox is active". Now, the post is only done during a connect, and do_send,
2506 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2508 2007-04-03 Frédéric Bernon
2509 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2510 packets. See patch #5834.
2512 2007-03-30 Frédéric Bernon
2513 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2514 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2516 2007-03-30 Frédéric Bernon
2517 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2518 others environment defines (these were too "generic").
2520 2007-03-28 Frédéric Bernon
2521 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2522 result and can cause a crash. lwip_send now check netbuf_ref result.
2524 2007-03-28 Simon Goldschmidt
2525 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2526 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2527 defined. This is the way it should have been already (looking at
2530 2007-03-28 Kieran Mansley
2531 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2532 IP and TCP headers *and* physical link headers
2534 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2535 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2536 to send some garbage. It is not a definitive solution, but the patch does solve
2537 the problem for most cases.
2539 2007-03-22 Frédéric Bernon
2540 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2542 2007-03-22 Frédéric Bernon
2543 * api_lib.c: somes resources couldn't be freed if there was errors during
2544 netconn_new_with_proto_and_callback.
2546 2007-03-22 Frédéric Bernon
2547 * ethernetif.c: update netif->input calls to check return value. In older ports,
2548 it's a good idea to upgrade them, even if before, there could be another problem
2549 (access to an uninitialized mailbox).
2551 2007-03-21 Simon Goldschmidt
2552 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2553 by casting to unsigned).
2555 2007-03-21 Frédéric Bernon
2556 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2557 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2558 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2559 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2560 faster and more reliable communication between api_lib and tcpip.
2562 2007-03-21 Frédéric Bernon
2563 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2565 2007-03-21 Frédéric Bernon
2566 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2568 2007-03-21 Kieran Mansley
2569 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2572 2007-03-21 Kieran Mansley
2573 * Fix all uses of pbuf_header to check the return value. In some
2574 cases just assert if it fails as I'm not sure how to fix them, but
2575 this is no worse than before when they would carry on regardless
2578 2007-03-21 Kieran Mansley
2579 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2580 comment out missing header include in icmp.c
2582 2007-03-20 Frédéric Bernon
2583 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2584 synchronized with memp.h.
2586 2007-03-20 Frédéric Bernon
2587 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2588 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2589 network interfaces. Also fix a compiler warning.
2591 2007-03-20 Kieran Mansley
2592 * udp.c: Only try and use pbuf_header() to make space for headers if
2593 not a ROM or REF pbuf.
2595 2007-03-19 Frédéric Bernon
2596 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2599 2007-03-19 Frédéric Bernon
2600 * Remove unimplemented "memp_realloc" function from memp.h.
2602 2007-03-11 Simon Goldschmidt
2603 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2606 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2607 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2608 (missing `const' qualifier in socket functions), to get more compatible to
2609 standard POSIX sockets.
2611 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2612 * sockets.c: Add asserts inside bind, connect and sendto to check input
2613 parameters. Remove excessive set_errno() calls after get_socket(), because
2614 errno is set inside of get_socket(). Move last sock_set_errno() inside
2617 2007-03-09 Simon Goldschmidt
2618 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2619 was allocated too small.
2621 2007-03-06 Simon Goldschmidt
2622 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2623 the stack from concurrent access.
2625 2007-03-06 Frédéric Bernon, Dmitry Potapov
2626 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2627 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2629 2007-03-06 Simon Goldschmidt
2630 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2631 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2633 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2634 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2635 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2636 Allow to do ARP processing for incoming packets inside tcpip_thread
2637 (protecting ARP layer against concurrent access). You can also disable
2638 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2639 Older ports have to use tcpip_ethinput.
2641 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2642 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2643 from pointer target type"
2645 2007-03-05 Frédéric Bernon
2646 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2647 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2649 2007-03-04 Frédéric Bernon
2650 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2653 2007-03-04 Frédéric Bernon
2654 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2656 The api_msg struct stay on the stack (not moved to netconn struct).
2658 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2659 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2660 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2661 Also fixed cast warning in pbuf_alloc()
2663 2007-03-04 Simon Goldschmidt
2664 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2665 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2667 2007-03-03 Frédéric Bernon
2668 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2669 It is static, and never used in udp.c except udp_init().
2671 2007-03-02 Simon Goldschmidt
2672 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2673 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2674 initialized before tcpip_thread is running (e.g. before OS is started)
2676 2007-03-02 Frédéric Bernon
2677 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2680 2007-02-28 Kieran Mansley
2681 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2682 outside the region of the pbuf by pbuf_header()
2684 2007-02-28 Kieran Mansley
2685 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2686 when supplied timeout is also non-zero
2690 2006-12-05 Leon Woestenberg
2691 * CHANGELOG: Mention STABLE-1.2.0 release.
2695 2006-12-01 Christiaan Simons
2696 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2697 Note this is a workaround. Currently I have no other options left.
2699 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2700 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2701 to include/lwip/opt.h.
2702 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2703 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2704 * opt.h: Add above new options.
2706 2006-08-18 Christiaan Simons
2707 * tcp_{in,out}.c: added SNMP counters.
2708 * ipv4/ip.c: added SNMP counters.
2709 * ipv4/ip_frag.c: added SNMP counters.
2711 2006-08-08 Christiaan Simons
2712 * etharp.{c,h}: added etharp_find_addr() to read
2713 (stable) ethernet/IP address pair from ARP table
2715 2006-07-14 Christiaan Simons
2716 * mib_structs.c: added
2717 * include/lwip/snmp_structs.h: added
2718 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2720 2006-07-06 Christiaan Simons
2721 * snmp/asn1_{enc,dec}.c added
2723 * snmp/msg_{in,out}.c added
2724 * include/lwip/snmp_asn1.h added
2725 * include/lwip/snmp_msg.h added
2726 * doc/snmp_agent.txt added
2728 2006-03-29 Christiaan Simons
2729 * inet.c, inet.h: Added platform byteswap support.
2730 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2731 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2735 2006-11-30 Christiaan Simons
2736 * dhcp.c: Fixed false triggers of request_timeout.
2738 2006-11-28 Christiaan Simons
2739 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2741 2006-10-11 Christiaan Simons
2742 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2743 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2744 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2745 identifier from 170 to 136 (bug #17574).
2747 2006-10-10 Christiaan Simons
2748 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2750 2006-08-17 Christiaan Simons
2751 * udp.c: Fixed bug #17200, added check for broadcast
2752 destinations for PCBs bound to a unicast address.
2754 2006-08-07 Christiaan Simons
2755 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2757 2006-06-27 Christiaan Simons
2758 * api_msg.c: Applied patch for cold case (bug #11135).
2759 In accept_function() ensure newconn->callback is always initialized.
2761 2006-06-15 Christiaan Simons
2762 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2763 facilitate printing of mem_size_t and u16_t statistics.
2765 2006-06-14 Christiaan Simons
2766 * api_msg.c: Applied patch #5146 to handle allocation failures
2767 in accept() by Kevin Lawson.
2769 2006-05-26 Christiaan Simons
2770 * api_lib.c: Removed conn->sem creation and destruction
2771 from netconn_write() and added sys_sem_new to netconn_new_*.
2775 2006-03-03 Christiaan Simons
2776 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2777 access and added pbuf_alloc() return value checks.
2779 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2780 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2781 now handled by the checksum routine properly.
2783 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2784 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2785 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2787 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2788 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2789 submitted by Mitrani Hiroshi.
2791 2005-12-15 Christiaan Simons
2792 * inet.c: Disabled the added summing routine to preserve code space.
2794 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2795 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2796 Added Curt McDowell's optimized checksumming routine for future
2797 inclusion. Need to create test case for unaliged, aligned, odd,
2798 even length combination of cases on various endianess machines.
2800 2005-12-09 Christiaan Simons
2801 * inet.c: Rewrote standard checksum routine in proper portable C.
2803 2005-11-25 Christiaan Simons
2804 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2805 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2806 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2808 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2809 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2810 routine by Peter Jolasson.
2811 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2813 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2814 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2815 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2817 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2818 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2820 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2821 * udp.c: UDP pcb->recv() was called even when it was NULL.
2825 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2826 * etharp.*: Disabled multiple packets on the ARP queue.
2827 This clashes with TCP queueing.
2829 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2830 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2831 Halved the ARP period, doubled the period counts.
2832 ETHARP_MAX_PENDING now should be at least 2. This prevents
2833 the counter from reaching 0 right away (which would allow
2834 too little time for ARP responses to be received).
2836 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2837 * dhcp.c: Decline messages were not multicast but unicast.
2838 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2839 Do not try hard to insert arbitrary packet's source address,
2840 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2841 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2842 querying an address will see it appear in the cache (DHCP could
2843 suffer from this when a server invalidly gave an in-use address.)
2844 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2845 comparing network addresses (identifiers), not the network masks
2847 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2848 IP address actually belongs to the network of the given interface.
2850 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2851 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2855 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2856 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2857 even if one is already pending, if the rcv_wnd is above a threshold
2858 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2859 delayed ACK in order to open the window if the stack is only receiving data.
2861 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2862 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2864 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2865 * etharp.c: Make sure the first pbuf queued on an ARP entry
2866 is properly ref counted.
2868 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2869 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2870 warnings about comparison.
2871 * pbuf.c: Stopped compiler complaining of empty if statement
2872 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2873 * tcp.c: Stopped compiler complaining of empty if statement
2874 when LWIP_DEBUGF() empty.
2875 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2876 * inet.c: Added a couple of casts to quiet the compiler.
2877 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2879 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2880 * inet.c: Made data types consistent in inet_ntoa().
2881 Added casts for return values of checksum routines, to pacify compiler.
2882 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2883 Small corrections to some debugging statements, to pacify compiler.
2885 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2886 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2887 * ethernetif.c Updated low_level_output() to match prototype for
2888 netif->linkoutput and changed low_level_input() similarly for consistency.
2889 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2890 of raw_recv() in raw.h and so avoid compiler error.
2891 * sockets.c: Added trivial (int) cast to keep compiler happier.
2892 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2898 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2899 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2900 your cc.h file defines this either 1 or 0. If non-defined,
2902 * .c: Added <string.h> and <errno.h> includes where used.
2903 * etharp.c: Made some array indices unsigned.
2905 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2906 * netif.*: Added netif_set_up()/down().
2907 * dhcp.c: Changes to restart program flow.
2909 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2910 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2911 single-pass lookup for different candidates. Should exploit locality.
2913 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2914 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2915 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2916 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2917 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2921 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2922 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2923 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2924 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2925 is to prefix the 14-bit Ethernet headers with two padding bytes.
2927 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2928 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2929 * etharp.c: Fixed the case where the packet that initiates the ARP request
2930 is not queued, and gets lost. Fixed the case where the packets destination
2931 address is already known; we now always queue the packet and perform an ARP
2938 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2939 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2940 * Fixed two possible NULL references in rare cases.
2946 * Fixed DHCP which did not include the IP address in DECLINE messages.
2950 * etharp.c has been hauled over a bit.
2956 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2957 * Packets sent from ARP queue had invalid source hardware address.
2961 * Pass-by ARP requests do now update the cache.
2965 * No longer dependent on ctype.h.
2966 * New socket options.
2967 * Raw IP pcb support.
2973 * Some debug formatters and casts fixed.
2974 * Numereous fixes in PPP.
2978 * DEBUGF now is LWIP_DEBUGF
2979 * pbuf_dechain() has been re-enabled.
2980 * Mentioned the changed use of CVS branches in README.
2986 * Fixed pool pbuf memory leak in pbuf_alloc().
2987 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2988 Reported by Savin Zlobec.
2990 * PBUF_POOL chains had their tot_len field not set for non-first
2991 pbufs. Fixed in pbuf_alloc().
2995 * Added PPP stack contributed by Marc Boucher
2999 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
3001 * ARP queueuing now queues the latest packet instead of the first.
3002 This is the RFC recommended behaviour, but can be overridden in
3009 * TCP has been fixed to deal with the new use of the pbuf->ref
3012 * DHCP dhcp_inform() crash bug fixed.
3016 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3017 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3018 Implemented by David Haas.
3024 * The packet buffer implementation has been enhanced to support
3025 zero-copy and copy-on-demand for packet buffers which have their
3026 payloads in application-managed memory.
3027 Implemented by David Haas.
3029 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3030 if an outgoing packet can be directly sent on the link, or perform
3031 a copy-on-demand when necessary.
3033 The application can safely assume the packet is sent, and the RAM
3034 is available to the application directly after calling udp_send()
3035 or similar function.
3039 * ARP_QUEUEING should now correctly work for all cases, including
3041 Implemented by Leon Woestenberg.
3045 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3046 to a '0.0.0.0' IP address.
3048 * The packet buffer implementation is changed. The pbuf->ref counter
3049 meaning has changed, and several pbuf functions have been
3050 adapted accordingly.
3052 * netif drivers have to be changed to set the hardware address length field
3053 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3054 See the contrib/ports/c16x cs8900 driver as a driver example.
3056 * netif's have a dhcp field that must be initialized to NULL by the driver.
3057 See the contrib/ports/c16x cs8900 driver as a driver example.
3059 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3060 logged in CVS but have not been explained here.
3062 (0.5.3) Changes since version 0.5.2
3066 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3067 threads because it wasn't protected by semaphores.
3071 * struct ip_addr now packed.
3073 * The name of the time variable in arp.c has been changed to ctime
3074 to avoid conflicts with the time() function.
3076 (0.5.2) Changes since version 0.5.1
3080 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3084 * A bug in tcp_parseopt() could cause the stack to hang because of a
3085 malformed TCP option.
3087 * The address of new connections in the accept() function in the BSD
3088 socket library was not handled correctly.
3090 * pbuf_dechain() did not update the ->tot_len field of the tail.
3092 * Aborted TCP connections were not handled correctly in all
3097 * All protocol header structs are now packed.
3099 * The ->len field in the tcp_seg structure now counts the actual
3100 amount of data, and does not add one for SYN and FIN segments.
3102 (0.5.1) Changes since version 0.5.0
3106 * Possible to run as a user process under Linux.
3108 * Preliminary support for cross platform packed structs.
3110 * ARP timer now implemented.
3114 * TCP output queue length was badly initialized when opening
3117 * TCP delayed ACKs were not sent correctly.
3119 * Explicit initialization of BSS segment variables.
3121 * read() in BSD socket library could drop data.
3123 * Problems with memory alignment.
3125 * Situations when all TCP buffers were used could lead to
3128 * TCP MSS option wasn't parsed correctly.
3130 * Problems with UDP checksum calculation.
3132 * IP multicast address tests had endianess problems.
3134 * ARP requests had wrong destination hardware address.
3138 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3140 * A ->linkoutput() member was added to struct netif.
3142 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3144 * ntoh* macros are now null definitions for big endian CPUs.
3146 (0.5.0) Changes since version 0.4.2
3150 * Redesigned operating system emulation layer to make porting easier.
3152 * Better control over TCP output buffers.
3154 * Documenation added.
3158 * Locking issues in buffer management.
3160 * Bugfixes in the sequential API.
3162 * IP forwarding could cause memory leakage. This has been fixed.
3166 * Directory structure somewhat changed; the core/ tree has been
3169 (0.4.2) Changes since version 0.4.1
3173 * Experimental ARP implementation added.
3175 * Skeleton Ethernet driver added.
3177 * Experimental BSD socket API library added.
3181 * In very intense situations, memory leakage could occur. This has
3186 * Variables named "data" and "code" have been renamed in order to
3187 avoid name conflicts in certain compilers.
3189 * Variable++ have in appliciable cases been translated to ++variable
3190 since some compilers generate better code in the latter case.
3192 (0.4.1) Changes since version 0.4
3196 * TCP: Connection attempts time out earlier than data
3197 transmissions. Nagle algorithm implemented. Push flag set on the
3198 last segment in a burst.
3200 * UDP: experimental support for UDP-Lite extensions.
3204 * TCP: out of order segments were in some cases handled incorrectly,
3205 and this has now been fixed. Delayed acknowledgements was broken
3206 in 0.4, has now been fixed. Binding to an address that is in use
3207 now results in an error. Reset connections sometimes hung an
3208 application; this has been fixed.
3210 * Checksum calculation sometimes failed for chained pbufs with odd
3211 lengths. This has been fixed.
3213 * API: a lot of bug fixes in the API. The UDP API has been improved
3214 and tested. Error reporting and handling has been
3215 improved. Logical flaws and race conditions for incoming TCP
3216 connections has been found and removed.
3218 * Memory manager: alignment issues. Reallocating memory sometimes
3219 failed, this has been fixed.
3221 * Generic library: bcopy was flawed and has been fixed.
3225 * API: all datatypes has been changed from generic ones such as
3226 ints, to specified ones such as u16_t. Functions that return
3227 errors now have the correct type (err_t).
3229 * General: A lot of code cleaned up and debugging code removed. Many
3230 portability issues have been fixed.
3232 * The license was changed; the advertising clause was removed.
3236 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3237 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3240 (0.4) Changes since version 0.3.1
3242 * Memory management has been radically changed; instead of
3243 allocating memory from a shared heap, memory for objects that are
3244 rapidly allocated and deallocated is now kept in pools. Allocation
3245 and deallocation from those memory pools is very fast. The shared
3246 heap is still present but is used less frequently.
3248 * The memory, memory pool, and packet buffer subsystems now support
3249 4-, 2-, or 1-byte alignment.
3251 * "Out of memory" situations are handled in a more robust way.
3253 * Stack usage has been reduced.
3255 * Easier configuration of lwIP parameters such as memory usage,
3256 TTLs, statistics gathering, etc. All configuration parameters are
3257 now kept in a single header file "lwipopts.h".
3259 * The directory structure has been changed slightly so that all
3260 architecture specific files are kept under the src/arch
3263 * Error propagation has been improved, both in the protocol modules
3266 * The code for the RTXC architecture has been implemented, tested
3269 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3270 the Internet checksum modules.
3272 * Bugs related to porting between a 32-bit and a 16-bit architecture
3273 have been found and corrected.
3275 * The license has been changed slightly to conform more with the
3276 original BSD license, including the advertisement clause.
3278 (0.3.1) Changes since version 0.3
3280 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3281 RAM never returned the RAM when the pbuf was deallocated.
3283 * TCP congestion control, window updates and retransmissions did not
3284 work correctly. This has now been fixed.
3286 * Bugfixes in the API.
3288 (0.3) Changes since version 0.2
3290 * New and improved directory structure. All include files are now
3291 kept in a dedicated include/ directory.
3293 * The API now has proper error handling. A new function,
3294 netconn_err(), now returns an error code for the connection in
3297 * Improvements in the memory management subsystem. The system now
3298 keeps a pointer to the lowest free memory block. A new function,
3299 mem_malloc2() tries to allocate memory once, and if it fails tries
3300 to free some memory and retry the allocation.
3302 * Much testing has been done with limited memory
3303 configurations. lwIP now does a better job when overloaded.
3305 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3307 * Many bugfixes in the TCP code:
3309 - Fixed a bug in tcp_close().
3311 - The TCP receive window was incorrectly closed when out of
3312 sequence segments was received. This has been fixed.
3314 - Connections are now timed-out of the FIN-WAIT-2 state.
3316 - The initial congestion window could in some cases be too
3317 large. This has been fixed.
3319 - The retransmission queue could in some cases be screwed up. This
3322 - TCP RST flag now handled correctly.
3324 - Out of sequence data was in some cases never delivered to the
3325 application. This has been fixed.
3327 - Retransmitted segments now contain the correct acknowledgment
3328 number and advertised window.
3330 - TCP retransmission timeout backoffs are not correctly computed
3331 (ala BSD). After a number of retransmissions, TCP now gives up
3334 * TCP connections now are kept on three lists, one for active
3335 connections, one for listening connections, and one for
3336 connections that are in TIME-WAIT. This greatly speeds up the fast
3337 timeout processing for sending delayed ACKs.
3339 * TCP now provides proper feedback to the application when a
3340 connection has been successfully set up.
3342 * More comments have been added to the code. The code has also been
3343 somewhat cleaned up.
3345 (0.2) Initial public release.