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 (patch by Mason)
84 * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
87 2012-03-25: Simon Goldschmidt
88 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
89 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
91 2012-03-25: Simon Goldschmidt
92 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
93 pollution in api_msg.c and netifapi.c
95 2012-03-22: Simon Goldschmidt
96 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
98 2012-03-20: Simon Goldschmidt (patch by Mason)
99 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
101 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
102 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
103 possible bug on little endian system
105 2012-02-23: Simon Goldschmidt
106 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
107 (introduced when fixing bug# 33551)
109 2012-02-16: Simon Goldschmidt
110 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
111 (bug #35541: PPP Memory Leak)
113 2012-02-16: Simon Goldschmidt
114 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
115 (introduced when fixing bug# 33551)
117 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
118 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
120 2012-02-15: Simon Goldschmidt
121 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
124 2012-02-12: Simon Goldschmidt
125 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
126 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
128 2012-02-11: Simon Goldschmidt
129 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
132 2012-01-22: Simon Goldschmidt
133 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
135 2012-01-21: Simon Goldschmidt
136 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
138 2012-01-20: Simon Goldschmidt
139 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
141 2012-01-20: Simon Goldschmidt
142 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
144 2011-11-25: Simon Goldschmidt
145 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
146 tcp_active_pcbs in some cases
148 2011-11-23: Simon Goldschmidt
149 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
152 2011-11-22: Simon Goldschmidt
153 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
154 netif is brought down
156 2011-10-28: Simon Goldschmidt
157 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
159 2011-10-23: Simon Goldschmidt
160 * mem.c: fixed bug #34429: possible memory corruption with
161 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
163 2011-10-18: Simon Goldschmidt
164 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
167 2011-10-18: Simon Goldschmidt
168 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
169 windows (bug #34176 select after non-blocking send times out)
171 2011-10-18: Simon Goldschmidt
172 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
173 consider netif->mtu, causes slow network
175 2011-10-18: Simon Goldschmidt
176 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
178 2011-10-18: Simon Goldschmidt
179 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
181 2011-10-17: Simon Goldschmidt
182 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
184 2011-10-13: Simon Goldschmidt
185 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
186 zero window is received) by starting the persist timer when a zero window is
187 received, not when we have more data queued for sending than fits into the
190 2011-10-13: Simon Goldschmidt
191 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
193 2011-10-13: Simon Goldschmidt
194 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
195 used and not all protocols are enabled
197 2011-10-12: Simon Goldschmidt
198 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
200 2011-10-09: Simon Goldschmidt
201 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
202 byte value when pcb->unacked != NULL
204 2011-10-09: Simon Goldschmidt
205 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
207 2011-09-27: Simon Goldschmidt
208 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
210 2011-09-27: Simon Goldschmidt
211 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
213 2011-09-27: Simon Goldschmidt
214 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
216 2011-09-24: Simon Goldschmidt
217 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
219 2011-09-23: Simon Goldschmidt
220 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
221 the last packet including FIN can lose data
223 2011-09-22: Simon Goldschmidt
224 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
227 2011-09-21: Simon Goldschmidt
228 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
231 2011-09-20: Simon Goldschmidt
232 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
234 2011-09-11: Simon Goldschmidt
235 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
238 2011-09-09: Simon Goldschmidt
239 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
242 2011-09-03: Simon Goldschmidt
243 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
244 is aggregated and sent to application
246 2011-09-01: Simon Goldschmidt
247 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
250 2011-09-01: Simon Goldschmidt
251 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
253 2011-08-24: Simon Goldschmidt
254 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
256 2011-08-24: Simon Goldschmidt
257 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
258 accept() on UDP connections
260 2011-08-24: Simon Goldschmidt
261 * sockets.h: fixed bug #34057 socklen_t should be a typedef
263 2011-08-24: Simon Goldschmidt
264 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
266 2011-08-24: Simon Goldschmidt
267 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
269 2011-08-24: Simon Goldschmidt
270 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
272 2011-08-22: Simon Goldschmidt
273 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
274 merely prevents nagle from not transmitting fast after closing.)
276 2011-07-22: Simon Goldschmidt
277 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
278 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
279 lwip_send() sends as much as possible for non-blocking sockets
281 2011-07-22: Simon Goldschmidt
282 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
283 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
284 at regular intervals from main level.
286 2011-07-21: Simon Goldschmidt
287 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
288 sending an ARP request when an ARP entry is used in the last minute before
291 2011-07-04: Simon Goldschmidt
292 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
294 2011-06-26: Simon Goldschmidt
295 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
296 updating its documentation only.
298 2011-06-26: Simon Goldschmidt
299 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
302 2011-06-26: Simon Goldschmidt
303 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
311 2011-03-27: Simon Goldschmidt
312 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
313 calculate it in tcp_zero_window_probe (the only place where it was used).
315 2010-11-21: Simon Goldschmidt
316 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
319 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
320 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
321 IP_MULTICAST_LOOP at socket- and raw-API level.
323 2010-06-16: Simon Goldschmidt
324 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
325 link-layer-addressed UDP traffic to be received while a netif is down (just
326 like DHCP during configuration)
328 2010-05-22: Simon Goldschmidt
329 * many many files: bug #27352: removed packing from ip_addr_t, the packed
330 version is now only used in protocol headers. Added global storage for
331 current src/dest IP address while in input functions.
333 2010-05-16: Simon Goldschmidt
334 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
335 calculation (and use them throughout the stack where applicable)
337 2010-05-16: Simon Goldschmidt
338 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
339 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
341 2010-05-16: Simon Goldschmidt
342 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
343 MEMP pool instead of the heap
345 2010-05-13: Simon Goldschmidt
346 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
347 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
348 packets to more than one pcb.
350 2010-05-02: Simon Goldschmidt
351 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
352 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
354 2010-04-30: Simon Goldschmidt
355 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
356 take a precalculated checksum, added pbuf_fill_chksum() to copy data
357 into a pbuf and at the same time calculating the checksum for that data
359 2010-04-29: Simon Goldschmidt
360 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
361 2-byte-aligned IP addresses and MAC addresses
363 2010-04-28: Patch by Bill Auerbach
364 * ip.c: Inline generating IP checksum to save a function call
366 2010-04-14: Simon Goldschmidt
367 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
368 tcpip_thread processes messages or timeouts to implement a watchdog.
370 2010-03-28: Simon Goldschmidt
371 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
372 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
374 2010-03-27: Simon Goldschmidt
375 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
376 etharp_query to prevent unnecessary function calls (inspired by
379 2010-03-20: Simon Goldschmidt
380 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
381 since the linker cannot do this automatically to save space.
383 2010-03-20: Simon Goldschmidt
384 * opt.h, etharp.c/.h: Added support for static ARP table entries
386 2010-03-14: Simon Goldschmidt
387 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
388 when creating TCP segments, not when (re-)transmitting them.
390 2010-03-07: Simon Goldschmidt
391 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
392 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
393 This should speed up receiving data on sockets as the select code in
394 event_callback is only executed when select is waiting.
396 2010-03-06: Simon Goldschmidt
397 * tcp_out.c: task #7013 (Create option to have all packets delivered to
398 netif->output in one piece): Always copy to try to create single pbufs
401 2010-03-06: Simon Goldschmidt
402 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
403 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
404 for tcp netconns to receive pbufs, not netbufs; use that function
407 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
408 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
409 Work on tcp_enqueue: Don't waste memory when chaining segments,
410 added option TCP_OVERSIZE to prevent creating many small pbufs when
411 calling tcp_write with many small blocks of data. Instead, pbufs are
412 allocated larger than needed and the space is used for later calls to
415 2010-02-21: Simon Goldschmidt
416 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
419 2010-02-21: Simon Goldschmidt
420 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
421 implementation of tcp to make API usage cleare to application programmers
423 2010-02-14: Simon Goldschmidt/Stephane Lesage
424 * ip_addr.h: Improved some defines working on ip addresses, added faster
425 macro to copy addresses that cannot be NULL
427 2010-02-13: Simon Goldschmidt
428 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
429 blocking send operation)
431 2010-02-12: Simon Goldschmidt
432 * sockets.c/.h: Added a minimal version of posix fctl() to have a
433 standardised way to set O_NONBLOCK for nonblocking sockets.
435 2010-02-12: Simon Goldschmidt
436 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
437 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
438 and dhcp work with user-allocated structs instead of callin mem_malloc
440 2010-02-12: Simon Goldschmidt/Jeff Barber
441 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
442 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
444 2010-02-12: Simon Goldschmidt
445 * sys layer: task #10139 (Prefer statically allocated memory): converted
446 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
447 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
448 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
449 to let sys.h use binary semaphores instead of mutexes - as before)
451 2010-02-09: Simon Goldschmidt (Simon Kallweit)
452 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
453 (Restart system timeout handling)
455 2010-02-09: Simon Goldschmidt
456 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
457 netif.c) - loopif does not have to be created by the port any more,
458 just define LWIP_HAVE_LOOPIF to 1.
460 2010-02-08: Simon Goldschmidt
461 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
462 inet_ntoa_r/ipaddr_ntoa_r
464 2010-02-08: Simon Goldschmidt
465 * netif.h: Added netif_s/get_igmp_mac_filter() macros
467 2010-02-05: Simon Goldschmidt
468 * netif.h: Added function-like macros to get/set the hostname on a netif
470 2010-02-04: Simon Goldschmidt
471 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
472 make changing the actual implementation behind the typedef easier.
474 2010-02-01: Simon Goldschmidt
475 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
476 for allocating memory when getaddrinfo() is called.
478 2010-01-31: Simon Goldschmidt
479 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
480 them once instead of parsing for every option. This also removes
481 the need for mem_malloc from dhcp_recv and makes it possible to
482 correctly retrieve the BOOTP file.
484 2010-01-30: simon Goldschmidt
485 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
488 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
489 * api.h, api_msg.c, sockets.c: Added except set support in select
492 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
493 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
494 Add non-blocking support for connect (partly from patch #6860),
495 plus many cleanups in socket & netconn API.
497 2010-01-27: Simon Goldschmidt
498 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
499 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
501 2010-01-26: Simon Goldschmidt
502 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
504 2010-01-14: Simon Goldschmidt
505 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
506 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
508 2010-01-13: Simon Goldschmidt
509 * mem.c: The heap now may be moved to user-defined memory by defining
510 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
511 (patch #6966 and bug #26133)
513 2010-01-10: Simon Goldschmidt (Bill Auerbach)
514 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
517 2010-01-10: Simon Goldschmidt
518 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
519 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
521 2009-12-31: Simon Goldschmidt
522 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
523 added timers.c/.h: Separated timer implementation from semaphore/mbox
524 implementation, moved timer implementation to timers.c/.h, timers are
525 now only called from tcpip_thread or by explicitly checking them.
528 2009-12-27: Simon Goldschmidt
529 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
530 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
535 2011-04-20: Simon Goldschmidt
536 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
538 2011-04-13: Simon Goldschmidt
539 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
540 using ports in the IANA private/dynamic range (49152 through 65535).
542 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
543 * etharp.h/.c: Fixed broken VLAN support.
545 2011-03-27: Simon Goldschmidt
546 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
547 pcbs) by checking if the pcb was bound (local_port != 0).
549 2011-03-27: Simon Goldschmidt
550 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
552 2011-03-27: Simon Goldschmidt
553 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
554 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
556 2011-03-27: Simon Goldschmidt
557 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
558 is present never times out) by starting retransmission timer before checking
561 2011-03-22: Simon Goldschmidt
562 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
563 calling sio_read_abort() if the file descriptor is valid.
565 2011-03-14: Simon Goldschmidt
566 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
567 more than once can render a socket useless) since it mainly involves changing
568 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
570 2011-03-13: Simon Goldschmidt
571 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
572 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
573 use EALRADY instead of -1
575 2011-03-13: Simon Goldschmidt
576 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
577 connection has been aborted by err_tcp (since this is not a normal closing
580 2011-03-13: Simon Goldschmidt
581 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
582 with pcb->state != CLOSED
584 2011-02-17: Simon Goldschmidt
585 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
588 2011-02-17: Simon Goldschmidt
589 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
591 2011-01-24: Simon Goldschmidt
592 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
594 2010-12-02: Simon Goldschmidt
595 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
597 2010-11-23: Simon Goldschmidt
598 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
599 LWIP_SO_RCVBUF and ioctl/FIONREAD.
601 2010-11-23: Simon Goldschmidt
602 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
603 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
605 2010-11-23: Simon Goldschmidt
606 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
607 refusing 'refused_data' again.
609 2010-11-22: Simon Goldschmidt
610 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
611 after a successful nonblocking connection.
613 2010-11-22: Simon Goldschmidt
614 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
615 must be sent link-local
617 2010-11-22: Simon Goldschmidt
618 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
621 2010-11-20: Simon Goldschmidt
622 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
624 2010-11-20: Simon Goldschmidt
625 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
626 resemble other stacks.
628 2010-11-20: Simon Goldschmidt
629 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
630 no-copy TCP writes will never succeed.
632 2010-11-20: Simon Goldschmidt
633 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
634 not match documentation: return ERR_ARG instead of ERR_VAL if not
635 initialized or wrong argument.
637 2010-10-20: Simon Goldschmidt
638 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
640 2010-10-05: Simon Goldschmidt
641 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
642 replugging the network cable after an AutoIP address was assigned.
644 2010-08-10: Simon Goldschmidt
645 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
647 2010-08-03: Simon Goldschmidt
648 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
650 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
651 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
652 endian architectures)
654 2010-07-28: Simon Goldschmidt
655 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
658 2010-07-27: Simon Goldschmidt
659 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
660 harm but never did anything
662 2010-07-21: Simon Goldschmidt
663 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
666 2010-07-16: Kieran Mansley
667 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
669 2010-07-10: Simon Goldschmidt
670 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
672 2010-06-30: Simon Goldschmidt
673 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
676 2010-06-28: Kieran Mansley
677 * timers.c remove unportable printing of C function pointers
679 2010-06-24: Simon Goldschmidt
680 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
681 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
683 2010-06-24: Simon Goldschmidt
684 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
685 implemented shutdown at socket level.
687 2010-06-21: Simon Goldschmidt
688 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
689 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
690 custom pbufs that reference other (original) pbufs. Additionally set
691 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
693 2010-06-15: Simon Goldschmidt
694 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
696 2010-06-14: Simon Goldschmidt
697 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
699 2010-06-12: Simon Goldschmidt
700 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
703 2010-05-17: Simon Goldschmidt
704 * netdb.c: Correctly NULL-terminate h_addr_list
706 2010-05-16: Simon Goldschmidt
707 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
708 "symbol already defined" i.e. when linking to winsock
710 2010-05-05: Simon Goldschmidt
711 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
714 2010-04-21: Simon Goldschmidt
715 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
718 2010-03-28: Luca Ceresoli
719 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
721 2010-03-27: Luca Ceresoli
722 * mib2.c: patch #7130: remove meaningless const qualifiers
724 2010-03-26: Simon Goldschmidt
725 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
727 2010-03-26: Simon Goldschmidt
728 * various files: Fixed compiling with different options disabled (TCP/UDP),
729 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
731 2010-03-25: Simon Goldschmidt
732 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
734 2010-03-25: Simon Goldschmidt
735 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
736 overrunning our rcv_wnd in ooseq case.
738 2010-03-22: Simon Goldschmidt
739 * tcp.c: tcp_listen() did not copy the pcb's prio.
741 2010-03-19: Simon Goldschmidt
742 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
744 2010-03-14: Simon Goldschmidt
745 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
746 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
747 and basing PBUF_LINK_HLEN on it.
749 2010-03-08: Simon Goldschmidt
750 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
751 when assiging routable address): when checking incoming packets and
752 aborting existing connection on address change, filter out link-local
755 2010-03-06: Simon Goldschmidt
756 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
758 2010-03-06: Simon Goldschmidt
759 * ipv4/ip.c: Don't try to forward link-local addresses
761 2010-03-06: Simon Goldschmidt
762 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
765 2010-03-05: Simon Goldschmidt
766 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
769 2010-03-05: Simon Goldschmidt
770 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
771 into multiple calls to tcp_write.
773 2010-02-21: Simon Goldschmidt
774 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
775 the implementation of DNS_USES_STATIC_BUF==1)
777 2010-02-20: Simon Goldschmidt
778 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
779 close() vs. shutdown(). Now the application does not get any more
780 recv callbacks after calling tcp_close(). Added tcp_shutdown().
782 2010-02-19: Simon Goldschmidt
783 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
784 confusion with realloc()
786 2010-02-15: Simon Goldschmidt/Stephane Lesage
787 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
790 2010-02-14: Simon Goldschmidt
791 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
792 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
793 admin-status of a netif are up
795 2010-02-14: Simon Goldschmidt
796 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
797 reception and is not really necessary
799 2010-02-14: Simon Goldschmidt
800 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
801 request was directed as us (RFC 826, Packet Reception), otherwise
802 only update existing entries; internalized some functions
804 2010-02-14: Simon Goldschmidt
805 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
806 disabled on netif used for PPPoE) by adding a new netif flag
807 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
808 device but prevents usage of ARP (so that ethernet_input can be used
811 2010-02-12: Simon Goldschmidt
812 * netif.c: netif_set_link_up/down: only do something if the link state
815 2010-02-12: Simon Goldschmidt/Stephane Lesage
816 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
819 2010-02-12: Simon Goldschmidt
820 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
822 2010-02-09: Simon Goldschmidt
823 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
824 (recv() makes receive window update for data that wasn't received by
827 2010-02-09: Simon Goldschmidt/Stephane Lesage
828 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
829 or any netconn_recv() error)
831 2010-02-09: Simon Goldschmidt
832 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
834 2010-02-09: Simon Goldschmidt
835 * netif.c: For loopback packets, adjust the stats- and snmp-counters
836 for the loopback netif.
838 2010-02-08: Simon Goldschmidt
839 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
840 since they are not used anywhere else.
842 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
843 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
844 (patch from bug #28798)
846 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
847 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
848 another bug when LWIP_RAND() returns zero.
850 2010-02-04: Simon Goldschmidt
851 * nearly every file: Use macros defined in ip_addr.h (some of them new)
852 to work with IP addresses (preparation for bug #27352 - Change ip_addr
853 from struct to typedef (u32_t) - and better code).
855 2010-01-31: Simon Goldschmidt
856 * netif.c: Don't call the link-callback from netif_set_up/down() since
857 this invalidly retriggers DHCP.
859 2010-01-29: Simon Goldschmidt
860 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
861 portability file inet.h and its contents from the stack: moved htonX-
862 functions to def.h (and the new def.c - they are not ipv4 dependent),
863 let inet.h depend on ip_addr.h and not the other way round.
864 This fixes bug #28732.
866 2010-01-28: Kieran Mansley
867 * tcp.c: Ensure ssthresh >= 2*MSS
869 2010-01-27: Simon Goldschmidt
870 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
871 callback can lead to accessing unallocated memory. As a consequence,
872 ERR_ABRT means the application has called tcp_abort()!
874 2010-01-25: Simon Goldschmidt
875 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
876 not implemented in SNMP): write-only or not-accessible are still
877 returned by getnext (though not by get)
879 2010-01-24: Simon Goldschmidt
880 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
881 not use reserved C/C++ keywords
883 2010-01-23: Simon Goldschmidt
884 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
887 2010-01-21: Simon Goldschmidt
888 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
889 if tcp_enqueue fails) both in raw- and netconn-API
891 2010-01-19: Simon Goldschmidt
892 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
894 2010-01-18: Iordan Neshev/Simon Goldschmidt
895 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
896 bugfix backports from 2.4.x.
898 2010-01-18: Simon Goldschmidt
899 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
901 2010-01-17: Simon Goldschmidt
902 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
903 task #10102: "netconn: clean up conn->err threading issues" by adding
904 error return value to struct api_msg_msg
906 2010-01-17: Simon Goldschmidt
907 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
908 to return err_t (bugs #27709 and #28087)
910 2010-01-14: Simon Goldschmidt
911 * ...: Use typedef for function prototypes throughout the stack.
913 2010-01-13: Simon Goldschmidt
914 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
915 window = 0) by correctly draining recvmbox/acceptmbox
917 2010-01-11: Simon Goldschmidt
918 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
919 erroneous callbacks) by copying the code from recent pppd
921 2010-01-10: Simon Goldschmidt
922 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
924 2010-01-10: Simon Goldschmidt
925 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
927 2010-01-08: Simon Goldschmidt
928 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
930 2010-01-08: Simon Goldschmidt
931 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
932 passed to dns_local_addhost() might be volatile
934 2010-01-07: Simon Goldschmidt
935 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
937 2010-01-06: Simon Goldschmidt
938 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
940 2009-12-31: Simon Goldschmidt
941 * many ppp files: Reorganised PPP source code from ucip structure to pppd
942 structure to easily compare our code against the pppd code (around v2.3.1)
944 2009-12-27: Simon Goldschmidt
945 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
953 2009-10-27 Simon Goldschmidt/Stephan Lesage
954 * netifapi.c/.h: Added netifapi_netif_set_addr()
956 2009-10-07 Simon Goldschmidt/Fabian Koch
957 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
958 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
960 2009-08-26 Simon Goldschmidt/Simon Kallweit
961 * slipif.c/.h: bug #26397: SLIP polling support
963 2009-08-25 Simon Goldschmidt
964 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
965 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
967 2009-08-25 Simon Goldschmidt
968 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
970 2009-08-24 Jakob Stoklund Olesen
971 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
972 to netif_set_link_up().
974 2009-08-23 Simon Goldschmidt
975 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
976 to a human-readable string.
980 2009-12-24: Kieran Mansley
981 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
984 2009-12-06: Simon Goldschmidt
985 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
986 be statically allocated (like in ucip)
988 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
989 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
991 2009-12-03: Simon Goldschmidt
992 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
993 could have non-zero length
995 2009-12-02: Simon Goldschmidt
996 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
997 tcp_input_pcb until after calling the pcb's callbacks
999 2009-11-29: Simon Goldschmidt
1000 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
1001 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
1003 2009-11-29: Simon Goldschmidt
1004 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1005 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1007 2009-11-26: Simon Goldschmidt
1008 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1011 2009-11-26: Simon Goldschmidt
1012 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1013 algorithm at PCB level
1015 2009-11-22: Simon Goldschmidt
1016 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1018 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1019 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1020 reusing time-wait pcb
1022 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1023 * sockets.c: Fixed bug #28062: Data received directly after accepting
1024 does not wake up select
1026 2009-11-11: Simon Goldschmidt
1027 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1029 2009-10-30: Simon Goldschmidt
1030 * opt.h: Increased default value for TCP_MSS to 536, updated default
1031 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1033 2009-10-28: Kieran Mansley
1034 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1035 to follow algorithm from TCP/IP Illustrated
1037 2009-10-27: Kieran Mansley
1038 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1040 2009-10-25: Simon Goldschmidt
1041 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1042 pcb->recv is NULL to keep rcv_wnd correct)
1044 2009-10-25: Simon Goldschmidt
1045 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1047 2009-10-23: Simon Goldschmidt (David Empson)
1048 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1050 2009-10-21: Simon Goldschmidt
1051 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1052 trailing 1 byte len (SYN/FIN)
1054 2009-10-21: Simon Goldschmidt
1055 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1057 2009-10-19: Simon Goldschmidt
1058 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1059 conditional code to assert where applicable), check pbuf length before
1060 testing for valid reply
1062 2009-10-19: Simon Goldschmidt
1063 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1064 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1066 2009-10-16: Simon Goldschmidt
1067 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1068 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1071 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1072 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1074 2009-10-15: Simon Goldschmidt
1075 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1078 2009-10-15: Simon Goldschmidt
1079 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1080 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1081 of network byte order
1083 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1084 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1085 which are not consecutive when retransmitting unacked segments
1087 2009-10-09 Simon Goldschmidt
1088 * opt.h: Fixed default values of some stats to only be enabled if used
1089 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1091 2009-08-30 Simon Goldschmidt
1092 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1093 function" by checking for loopback before calling ip_frag
1095 2009-08-25 Simon Goldschmidt
1096 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1098 2009-08-23 Simon Goldschmidt
1099 * ppp.c: bug #27078: Possible memory leak in pppInit()
1101 2009-08-23 Simon Goldschmidt
1102 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1105 2009-08-23 Simon Goldschmidt
1106 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1107 Fixed wrong parenthesis, added check in init.c
1109 2009-08-23 Simon Goldschmidt
1110 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1112 2009-08-23 Simon Goldschmidt
1113 * many ppp files: bug #27267: Added include to string.h where needed
1115 2009-08-23 Simon Goldschmidt
1116 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1123 2009-05-10 Simon Goldschmidt
1124 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1125 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1126 one pbuf to help MACs that don't support scatter-gather DMA.
1128 2009-05-09 Simon Goldschmidt
1129 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1130 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1132 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1133 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1134 extended info about the currently received packet.
1136 2009-04-27 Simon Goldschmidt
1137 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1139 2009-04-25 Simon Goldschmidt
1140 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1141 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1143 2009-04-21 Simon Goldschmidt
1144 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1145 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1146 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1147 as an external function for lookup.
1149 2009-04-15 Simon Goldschmidt
1150 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1152 2009-03-31 Kieran Mansley
1153 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1154 TCP timestamp options, off by default. Rework tcp_enqueue() to
1155 take option flags rather than specified option data
1157 2009-02-18 Simon Goldschmidt
1158 * cc.h: Added printf formatter for size_t: SZT_F
1160 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1161 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1164 2009-02-12 Simon Goldschmidt
1165 * init.h: Added LWIP_VERSION to get the current version of the stack
1167 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1168 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1169 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1172 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1173 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1174 is only used by UDPLITE at present, so conditionalise it.
1176 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1177 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1178 "seed" address. This should reduce AUTOIP conflicts if
1179 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1181 2008-10-02 Jonathan Larmour and Rishi Khan
1182 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1185 2008-06-30 Simon Goldschmidt
1186 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1187 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1188 mem_free to run between mem_malloc iterations. Added illegal counter for
1191 2008-06-27 Simon Goldschmidt
1192 * stats.h/.c, some other files: patch #6483: stats module improvement:
1193 Added defines to display each module's statistic individually, added stats
1194 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1196 2008-06-17 Simon Goldschmidt
1197 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1198 (define LWIP_ERR_T in cc.h)
1200 2008-06-17 Simon Goldschmidt
1201 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1204 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1205 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1206 modified version of patch # 6370: Moved loopif code to netif.c so that
1207 loopback traffic is supported on all netifs (all local IPs).
1208 Added option to limit loopback packets for each netifs.
1212 2009-08-12 Kieran Mansley
1213 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1214 out of window or out of order properly
1216 2009-08-12 Kieran Mansley
1217 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1219 2009-07-28 Simon Goldschmidt
1220 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1222 2009-07-27 Kieran Mansley
1223 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1225 2009-07-09 Kieran Mansley
1226 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1227 recv_avail and don't increment counters until message successfully
1230 2009-06-25 Kieran Mansley
1231 * api_msg.c api.h: BUG26722: initialise netconn write variables
1234 2009-06-25 Kieran Mansley
1235 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1237 2009-06-25 Kieran Mansley
1238 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1239 simultaneous close behaviour, and make snd_nxt have the same meaning
1242 2009-05-12 Simon Goldschmidt
1243 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1244 arp_table / uses etharp_query" by adding etharp_gratuitous()
1246 2009-05-12 Simon Goldschmidt
1247 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1248 to the IP header (used by igmp_ip_output_if)
1250 2009-05-06 Simon Goldschmidt
1251 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1252 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1254 2009-05-05 Simon Goldschmidt
1255 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1258 2009-05-04 Simon Goldschmidt
1259 * init.c: snmp was not initialized in lwip_init()
1261 2009-05-04 Frédéric Bernon
1262 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1264 2009-05-03 Simon Goldschmidt
1265 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1266 (and unsent->next == NULL)
1268 2009-05-02 Simon Goldschmidt
1269 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1270 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1272 2009-05-02 Simon Goldschmidt
1273 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1275 2009-05-01 Simon Goldschmidt
1276 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1278 2009-05-01 Simon Goldschmidt
1279 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1281 2009-04-29 Frédéric Bernon
1282 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1283 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1284 of broadcast packets even when this option wasn't set. Port maintainers
1285 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1286 If you want this option also filter broadcast on recv operations, you also
1287 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1289 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1290 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1291 DHCP/AUTOIP cooperation
1293 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1294 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1295 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1296 right place in tcp_output and tcp_rexmit).
1298 2009-04-25 Simon Goldschmidt
1299 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1300 when debugging": memp_sizes contained the wrong sizes (including sanity
1301 regions); memp pools for MEM_USE_POOLS were too small
1303 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1304 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1305 behavior, with with ip address string not ended by a '\0', a space or a
1308 2009-04-19 Simon Goldschmidt
1309 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1310 pcb->err is called, not pcb->connected (with an error code).
1312 2009-04-19 Simon Goldschmidt
1313 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1314 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1316 2009-04-19 Simon Goldschmidt
1317 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1318 in the header pbuf, not the data pbuf)
1320 2009-04-18 Simon Goldschmidt
1321 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1323 2009-04-15 Simon Goldschmidt
1324 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1326 2009-04-15 Simon Goldschmidt
1327 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1329 2009-04-15 Simon Goldschmidt
1330 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1331 ip_hinted_output() (for smaller code mainly)
1333 2009-04-15 Simon Goldschmidt
1334 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1336 2009-04-15 Simon Goldschmidt
1337 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1338 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1339 is big enough in dhcp_start
1341 2009-04-15 Simon Goldschmidt
1342 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1344 2009-04-15 Simon Goldschmidt
1345 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1347 2009-04-15 Simon Goldschmidt
1348 * sockets.c: bug #26121: set_errno can be overridden
1350 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1351 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1354 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1355 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1358 2009-03-31 Kieran Mansley
1359 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1360 updates are calculated and sent (BUG20515)
1362 * tcp_in.c: cope with SYN packets received during established states,
1363 and retransmission of initial SYN.
1365 * tcp_out.c: set push bit correctly when tcp segments are merged
1367 2009-03-27 Kieran Mansley
1368 * tcp_out.c set window correctly on probes (correcting change made
1371 2009-03-26 Kieran Mansley
1372 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1373 connections where no reset required (bug #25622)
1375 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1378 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1379 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1380 too small depending on MEM_ALIGNMENT
1382 2009-02-16 Simon Goldschmidt
1383 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1384 converted size argument of netconn_write to 'size_t'
1386 2009-02-16 Simon Goldschmidt
1387 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1388 by moving accept callback function pointer to TCP_PCB_COMMON
1390 2009-02-12 Simon Goldschmidt
1391 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1394 2009-02-11 Simon Goldschmidt
1395 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1397 2009-02-11 Simon Goldschmidt
1398 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1399 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1401 2009-02-10 Simon Goldschmidt
1402 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1403 Accepts_pending is decrease on a corresponding listen pcb when a connection
1404 in state SYN_RCVD is close.
1406 2009-01-28 Jonathan Larmour
1407 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1410 2008-12-19 Simon Goldschmidt
1411 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1413 2008-12-10 Tamas Somogyi, Frédéric Bernon
1414 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1415 port uses deleted netbuf.
1417 2008-10-18 Simon Goldschmidt
1418 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1421 2008-10-15 Simon Goldschmidt
1422 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1423 by packing the struct ip_reass_helper.
1425 2008-10-03 David Woodhouse, Jonathan Larmour
1426 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1428 2008-10-02 Jonathan Larmour
1429 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1430 padding is included.
1432 2008-09-30 Jonathan Larmour
1433 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1434 assertion check that addrlen isn't NULL.
1436 2008-09-30 Jonathan Larmour
1437 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1439 2008-08-26 Simon Goldschmidt
1440 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1441 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1443 2008-08-14 Simon Goldschmidt
1444 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1445 tcp_close returns != ERR_OK)
1447 2008-07-08 Frédéric Bernon
1448 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1449 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1451 2008-06-24 Jonathan Larmour
1452 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1453 if tcp_seg_copy fails.
1455 2008-06-17 Simon Goldschmidt
1456 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1457 and created defines for swapping bytes and folding u32 to u16.
1459 2008-05-30 Kieran Mansley
1460 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1461 rather than rcv_ann_wnd when deciding if packets are in-window.
1462 Contributed by <arasmussen@consultant.datasys.swri.edu>
1464 2008-05-30 Kieran Mansley
1465 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1466 passing as function pointers when MEM_LIBC_MALLOC is defined.
1468 2008-05-09 Jonathan Larmour
1469 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1470 stop it being treated as a fatal error.
1472 2008-04-15 Simon Goldschmidt
1473 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1476 2008-03-27 Simon Goldschmidt
1477 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1478 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1479 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1480 or heap memory from interrupt context
1482 2008-03-26 Simon Goldschmidt
1483 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1484 host sent a zero mss as TCP option.
1491 2008-03-10 Jonathan Larmour
1492 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1493 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1495 2008-01-22 Frédéric Bernon
1496 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1497 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1499 2008-01-14 Frédéric Bernon
1500 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1501 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1502 tcp_recv callback (see rawapi.txt).
1504 2008-01-14 Frédéric Bernon, Marc Chaland
1505 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1507 2008-01-12 Frédéric Bernon
1508 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1509 netconn::sem per netconn::op_completed like suggested for the task #7490
1510 "Add return value to sys_mbox_post".
1512 2008-01-12 Frédéric Bernon
1513 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1514 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1515 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1517 2008-01-10 Frédéric Bernon
1518 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1519 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1520 "blocking" ("block" parameter = 1).
1522 2008-01-10 Frédéric Bernon
1523 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1524 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1525 "Add return value to sys_mbox_post".
1527 2008-01-05 Frédéric Bernon
1528 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1529 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1530 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1531 indicate the number of pointers query by the mailbox. There is three defines
1532 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1533 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1534 parameter in your implementation, but to ignore it to keep the previous behavior.
1535 The new sys_mbox_trypost function return a value to know if the mailbox is
1536 full or if the message is posted. Take a look to sys_arch.txt for more details.
1537 This new function is used in tcpip_input (so, can be called in an interrupt
1538 context since the function is not blocking), and in recv_udp and recv_raw.
1540 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1541 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1542 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1543 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1544 documentation in the rawapi.txt file.
1546 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1547 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1549 2007-12-31 Frédéric Bernon, Luca Ceresoli
1550 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1551 in autoip". The change in etharp_raw could be removed, since all calls to
1552 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1553 wrong in the future.
1555 2007-12-30 Frédéric Bernon, Tom Evans
1556 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1557 Filtering" reported by Tom Evans.
1559 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1560 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1561 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1562 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1563 keep accepting new connections.
1565 2007-12-13 Frédéric Bernon
1566 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1567 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1569 2007-12-12 Frédéric Bernon
1570 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1571 are the one which have ram usage.
1573 2007-12-05 Frédéric Bernon
1574 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1575 set of variables (=0) or a local one (=1). In this last case, your port should
1576 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1577 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1579 2007-12-03 Simon Goldschmidt
1580 * ip.c: ip_input: check if a packet is for inp first before checking all other
1581 netifs on netif_list (speeds up packet receiving in most cases)
1583 2007-11-30 Simon Goldschmidt
1584 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1585 UDP: move a (connected) pcb selected for input to the front of the list of
1586 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1589 2007-11-28 Simon Goldschmidt
1590 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1592 2007-11-25 Simon Goldschmidt
1593 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1596 2007-11-24 Simon Goldschmidt
1597 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1598 to the new file netdb.c; included lwip_getaddrinfo.
1600 2007-11-21 Simon Goldschmidt
1601 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1602 based on the MTU of the netif used to send. Enabled by default. Disable by
1603 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1605 2007-11-19 Frédéric Bernon
1606 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1607 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1608 copy dns payload to parse the response), return an error if there is no place
1609 for a new query, and fix some minor problems.
1611 2007-11-16 Simon Goldschmidt
1612 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1613 removed files: core/inet.c, core/inet6.c
1614 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1615 inet and chksum part; changed includes in all lwIP files as appropriate
1617 2007-11-16 Simon Goldschmidt
1618 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1619 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1620 (gethostbyname/gethostbyname_r).
1622 2007-11-15 Jim Pettinato, Frédéric Bernon
1623 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1624 requests with RAW api interface. Initialization is done in lwip_init() with
1625 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1626 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1627 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1628 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1629 list with points to improve.
1631 2007-11-06 Simon Goldschmidt
1632 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1633 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1634 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1636 2007-11-06 Simon Goldschmidt
1637 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1638 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1639 implementation from netconn api applications.
1641 2007-11-03 Frédéric Bernon
1642 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1643 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1644 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1645 it. This is a first release which have to be improve for TCP. Note it used the
1646 netconn::recv_avail which need to be more "thread-safe" (note there is already
1647 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1649 2007-11-01 Frédéric Bernon, Marc Chaland
1650 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1651 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1652 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1653 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1654 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1656 2007-10-24 Frédéric Bernon
1657 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1658 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1659 some code (like we have talk in "patch #5919 : Create compile switch to remove
1660 select code"), but it could be done later.
1662 2007-10-08 Simon Goldschmidt
1663 * many files: Changed initialization: many init functions are not needed any
1664 more since we now rely on the compiler initializing global and static
1667 2007-10-06 Simon Goldschmidt
1668 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1669 to enqueue the received pbufs so that multiple packets can be reassembled
1670 simultaneously and no static reassembly buffer is needed.
1672 2007-10-05 Simon Goldschmidt
1673 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1674 all netifs (or ports) can use it.
1676 2007-10-05 Frédéric Bernon
1677 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1678 common function to reduce a little bit the footprint (for all functions using
1679 only the "netif" parameter).
1681 2007-10-03 Frédéric Bernon
1682 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1683 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1684 a little bit the footprint (for all functions using only the "netif" parameter).
1686 2007-09-15 Frédéric Bernon
1687 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1688 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1689 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1690 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1692 2007-09-10 Frédéric Bernon
1693 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1694 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1695 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1696 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1697 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1698 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1699 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1700 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1701 when it's queried (any direct call to "sysuptime" is changed by a call to
1702 snmp_get_sysuptime).
1704 2007-09-09 Frédéric Bernon, Bill Florac
1705 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1706 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1707 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1708 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1709 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1710 the next query message to receive the matching multicast streams).
1712 2007-09-08 Frédéric Bernon
1713 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1714 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1715 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1716 Enable to access to these fields with LWIP_TCP=0.
1718 2007-09-05 Frédéric Bernon
1719 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1720 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1721 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1722 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1723 help to reduce footprint, and to reduce "visibility" on the Internet.
1725 2007-09-05 Frédéric Bernon, Bill Florac
1726 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1727 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1728 parameters have to be provided: a task name, and a task stack size. For this
1729 one, since it's platform dependant, you could define the best one for you in
1730 your lwipopts.h. For port maintainers, you can just add these new parameters
1731 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1734 2007-09-05 Frédéric Bernon
1735 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1736 inside init.c for task #7142 "Sanity check user-configurable values".
1738 2007-09-04 Frédéric Bernon, Bill Florac
1739 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1740 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1741 value). It will avoid potential fragmentation problems, use a counter to know
1742 how many times a group is used on an netif, and free it when all applications
1743 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1744 check if LWIP_IGMP!=0).
1746 2007-09-03 Frédéric Bernon
1747 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1748 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1749 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1750 and/or the "interface" field (for netconn layer), for join/leave operations.
1751 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1752 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1754 2007-08-30 Frédéric Bernon
1755 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1756 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1757 with other API (application based on raw API, or future "socket2" API). Ports
1758 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1760 2007-08-30 Frédéric Bernon, Jonathan Larmour
1761 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1762 user-configurable values".
1764 2007-08-29 Frédéric Bernon
1765 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1766 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1767 spirit than the others modules. Modify some IGMP debug traces.
1769 2007-08-29 Frédéric Bernon
1770 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1771 Add lwip_init function to regroup all modules initializations, and to provide
1772 a place to add code for task #7142 "Sanity check user-configurable values".
1773 Ports maintainers should remove direct initializations calls from their code,
1774 and add init.c in their makefiles. Note that lwip_init() function is called
1775 inside tcpip_init, but can also be used by raw api users since all calls are
1776 disabled when matching options are disabled. Also note that their is new options
1777 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1779 2007-08-26 Marc Boucher
1780 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1781 since they can under certain circumstances be called with an invalid conn
1782 pointer after the connection has been closed (and conn has been freed).
1784 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1785 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1786 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1788 2007-08-22 Frédéric Bernon
1789 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1790 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1792 2007-08-22 Frédéric Bernon
1793 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1794 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1795 name is tcpip_input (we keep the name of 1.2.0 function).
1797 2007-08-17 Jared Grubb
1798 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1799 settings into new memp_std.h and optional user file lwippools.h. This adds
1800 more dynamic mempools, and allows the user to create an arbitrary number of
1801 mempools for mem_malloc.
1803 2007-08-16 Marc Boucher
1804 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1805 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1806 close the connection.
1808 2007-08-16 Marc Boucher
1809 * sockets.c: lwip_accept(): check netconn_peer() error return.
1811 2007-08-16 Marc Boucher
1812 * mem.c, mem.h: Added mem_calloc().
1814 2007-08-16 Marc Boucher
1815 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1816 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1817 and starving other message types.
1818 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1820 2007-08-16 Marc Boucher
1821 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1822 type and flgs (later renamed to flags).
1823 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1824 Improved lwip_recvfrom(). TCP push now propagated.
1826 2007-08-16 Marc Boucher
1827 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1830 2007-08-16 Marc Boucher
1831 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1832 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1833 Added PPPoE support and various PPP improvements.
1835 2007-07-25 Simon Goldschmidt
1836 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1837 making netbuf_copy_partial use this function.
1839 2007-07-25 Simon Goldschmidt
1840 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1841 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1844 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1845 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1846 a link callback in the netif struct, and functions to handle it. Be carefull
1847 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1848 if you want to be sure to be compatible with future changes...
1850 2007-06-30 Frédéric Bernon
1851 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1853 2007-06-21 Simon Goldschmidt
1854 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1855 LWIP_AUTOIP =0 and =1 to remove redundant code.
1857 2007-06-21 Simon Goldschmidt
1858 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1859 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1860 heap. This both prevents memory fragmentation and gives a higher speed
1861 at the cost of more memory consumption. Turned off by default.
1863 2007-06-21 Simon Goldschmidt
1864 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1865 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1866 int to be able to send a bigger buffer than 64K with one time (mainly
1867 used from lwip_send).
1869 2007-06-21 Simon Goldschmidt
1870 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1871 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1873 2007-06-21 Simon Goldschmidt
1874 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1875 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1876 changes on low memory or empty send-buffer.
1878 2007-06-18 Simon Goldschmidt
1879 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1880 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1881 used for ethernet and struct eth_addr already had a defined length of 6).
1883 2007-06-17 Simon Goldschmidt
1884 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1885 to disable UDP checksum generation on transmit.
1887 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1888 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1889 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1890 this macro to check "conn" parameter in api_msg.c functions.
1892 2007-06-11 Simon Goldschmidt
1893 * sockets.c, sockets.h: Added UDP lite support for sockets
1895 2007-06-10 Simon Goldschmidt
1896 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1897 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1900 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1901 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1902 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1903 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1904 (see TODO mark in the source code).
1906 2007-06-09 Simon Goldschmidt
1907 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1908 etharp_output() to match netif->output so etharp_output() can be used
1909 directly as netif->output to save one function call.
1911 2007-06-08 Simon Goldschmidt
1912 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1913 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1914 added initialization of those to ethernetif, slipif and loopif.
1916 2007-05-18 Simon Goldschmidt
1917 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1918 (defaulting to off for now) that can be set to 0 to send fragmented
1919 packets by passing PBUF_REFs down the stack.
1921 2007-05-23 Frédéric Bernon
1922 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1923 connections, such present in patch #5959.
1925 2007-05-23 Frédéric Bernon
1926 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1927 code in only one part...
1929 2007-05-18 Simon Goldschmidt
1930 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1931 elements to overflow. This is achieved by adding some bytes before and after
1932 each pool element (increasing their size, of course), filling them with a
1933 prominent value and checking them on freeing the element.
1934 Set it to 2 to also check every element in every pool each time memp_malloc()
1935 or memp_free() is called (slower but more helpful).
1937 2007-05-10 Simon Goldschmidt
1938 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1939 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1942 2007-05-11 Frédéric Bernon
1943 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1944 Include a function pointer instead of a table index in the message to reduce
1945 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1946 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1948 2007-05-10 Simon Goldschmidt
1949 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1950 \ extern "C" {' in all header files. Now you can write your application using
1951 the lwIP stack in C++ and simply #include the core files. Note I have left
1952 out the netif/ppp/*h header files for now, since I don't know which files are
1953 included by applications and which are for internal use only.
1955 2007-05-09 Simon Goldschmidt
1956 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1957 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1958 situations where some compilers might inline the copy and save a function
1959 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1961 2007-05-08 Simon Goldschmidt
1962 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1963 to be overriden in case the C-library malloc implementation is not protected
1964 against concurrent access.
1966 2007-05-04 Simon Goldschmidt (Atte Kojo)
1967 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1968 multiple packets to the same host.
1970 2007-05-04 Frédéric Bernon, Jonathan Larmour
1971 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1972 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1973 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1974 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1975 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1976 these fields are now renamed "addr" & "port".
1978 2007-04-11 Jonathan Larmour
1979 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1980 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1981 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1982 by the port in sys_arch.h if desired.
1984 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1985 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1986 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1987 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1989 2007-04-05 Frédéric Bernon
1990 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1992 2007-04-04 Simon Goldschmidt
1993 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1994 use this for and architecture-independent form to tell the compiler you intentionally
1995 are not using this variable. Can be overriden in cc.h.
1997 2007-03-28 Frédéric Bernon
1998 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1999 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
2000 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
2001 It will be used by DHCP to register a client hostname, but can also be use when you call
2004 2007-03-28 Frédéric Bernon
2005 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2006 initialize a network interface's flag with. It tell this interface is an ethernet
2007 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2008 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2010 2007-03-26 Frédéric Bernon, Jonathan Larmour
2011 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2012 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2013 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2014 is done in tcpip_init function.
2016 2007-03-22 Frédéric Bernon
2017 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2018 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2019 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2020 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2021 but never used. Fix msg_in.c with the correct #if test for a stat display.
2023 2007-03-21 Kieran Mansley
2024 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2025 Provides callback on netif up/down state change.
2027 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2028 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2029 ip.c, netif.h, tcpip.c, opt.h:
2030 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2031 filter per all network interfaces. Declare a new function in netif to enable to
2032 control the MAC filter (to reduce lwIP traffic processing).
2034 2007-03-11 Frédéric Bernon
2035 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2036 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2037 unless you know what you're doing (default are RFC1122 compliant). Note
2038 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2040 2007-03-08 Frédéric Bernon
2041 * tcp.h: Keepalive values can be configured at compile time, but don't change
2042 this unless you know what you're doing (default are RFC1122 compliant).
2044 2007-03-08 Frédéric Bernon
2045 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2046 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2047 on UDP sockets/netconn.
2049 2007-03-08 Simon Goldschmidt
2050 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2052 2007-03-06 Frédéric Bernon
2053 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2054 Implement SO_RCVTIMEO on UDP sockets/netconn.
2056 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2057 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2058 on the stack and remove the API msg type from memp
2060 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2061 * sockets.h, sockets.c: Move socket initialization to new
2062 lwip_socket_init() function.
2063 NOTE: this changes the API with ports. Ports will have to be
2064 updated to call lwip_socket_init() now.
2066 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2067 * api_lib.c: Use memcpy in netbuf_copy_partial.
2072 2008-03-17 Frédéric Bernon, Ed Kerekes
2073 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2074 some problems to fill the IP header on some targets, use now the
2075 ip.h macros to do it).
2077 2008-03-13 Frédéric Bernon
2078 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2079 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2080 TCP connection caused a crash. Note that using (lwip_)recvfrom
2081 like this is a bit slow and that using (lwip)getpeername is the
2082 good lwip way to do it (so, using recv is faster on tcp sockets).
2084 2008-03-12 Frédéric Bernon, Jonathan Larmour
2085 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2086 recv_raw() does not consume data", and the ping sample (with
2087 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2088 returned the IP payload, without the IP header).
2090 2008-03-04 Jonathan Larmour
2091 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2092 and/or warnings on some systems where mem_size_t and size_t differ.
2093 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2095 2008-03-04 Kieran Mansley (contributions by others)
2096 * Numerous small compiler error/warning fixes from contributions to
2097 mailing list after 1.3.0 release candidate made.
2099 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2100 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2102 2008-01-15 Kieran Mansley
2103 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2104 prevented from sending by a small send window, not just a zero
2107 2008-01-09 Jonathan Larmour
2108 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2109 conflict with Linux system headers.
2111 2008-01-06 Jonathan Larmour
2112 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2113 address entirely on receiving a DHCPNAK, and restarting discovery.
2115 2007-12-21 Simon Goldschmidt
2116 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2117 is not protected" by using new macros for interlocked access to modify/test
2118 netconn->recv_avail.
2120 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2121 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2123 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2124 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2125 of silly window avoidance and prevent lwIP from shrinking the window)
2127 2007-12-04 Simon Goldschmidt
2128 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2129 data packet was lost): add assert that all segment lists are empty in
2130 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2131 state from LAST_ACK in tcp_process
2133 2007-12-02 Simon Goldschmidt
2134 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2135 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2136 has to be set to 0 in lwipopts.h
2138 2007-12-02 Simon Goldschmidt
2139 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2140 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2141 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2142 This is a fix for thread-safety and allocates all items needed for a netconn
2143 when the netconn is created.
2145 2007-11-30 Simon Goldschmidt
2146 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2147 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2148 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2149 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2151 2007-11-27 Simon Goldschmidt
2152 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2153 letting ip_route only use netifs that are up.
2155 2007-11-27 Simon Goldschmidt
2156 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2157 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2158 sockets block most operations once they have seen a fatal error.
2160 2007-11-27 Simon Goldschmidt
2161 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2162 netif to send as an argument (to be able to send on netifs that are down).
2164 2007-11-26 Simon Goldschmidt
2165 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2168 2007-11-21 Simon Goldschmidt
2169 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2170 Fixed the nagle algorithm; nagle now also works for all raw API applications
2171 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2173 2007-11-12 Frédéric Bernon
2174 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2175 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2176 context in do_getaddr.
2178 2007-11-10 Simon Goldschmidt
2179 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2180 happen any time). Now the packet simply isn't enqueued when out of memory.
2182 2007-11-01 Simon Goldschmidt
2183 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2184 TCP_MSS if that is smaller) as long as no MSS option is received from the
2187 2007-11-01 Simon Goldschmidt
2188 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2189 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2190 sending our configured TCP_MSS instead of the one received).
2192 2007-11-01 Simon Goldschmidt
2193 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2194 calculated based on the configured TCP_MSS, not on the MSS option received
2197 2007-10-09 Simon Goldschmidt
2198 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2199 short and also was generated wrong if checksum coverage != tot_len;
2200 receive: checksum was calculated wrong if checksum coverage != tot_len
2202 2007-10-08 Simon Goldschmidt
2203 * mem.c: lfree was not updated in mem_realloc!
2205 2007-10-07 Frédéric Bernon
2206 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2207 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2208 this change cause an API breakage for netconn_addr, since a parameter
2209 type change. Any compiler should cause an error without any changes in
2210 yours netconn_peer calls (so, it can't be a "silent change"). It also
2211 reduce a little bit the footprint for socket layer (lwip_getpeername &
2212 lwip_getsockname use now a common lwip_getaddrname function since
2213 netconn_peer & netconn_addr have the same parameters).
2215 2007-09-20 Simon Goldschmidt
2216 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2217 by checking tcp_tw_pcbs also
2219 2007-09-19 Simon Goldschmidt
2220 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2222 2007-09-15 Mike Kleshov
2223 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2225 2007-09-06 Frédéric Bernon
2226 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2227 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2228 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2229 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2231 2007-08-30 Frédéric Bernon
2232 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2233 and fix some coding style.
2235 2007-08-28 Frédéric Bernon
2236 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2237 kind of packets. These packets are considered like Ethernet packets (payload
2238 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2239 are considered like IP packets (payload pointing to iphdr).
2241 2007-08-27 Frédéric Bernon
2242 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2243 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2244 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2246 2007-08-24 Kieran Mansley
2247 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2248 compiler (Paradigm C++)
2250 2007-08-09 Frédéric Bernon, Bill Florac
2251 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2252 Introduce IGMP_STATS to centralize statistics management.
2254 2007-08-09 Frédéric Bernon, Bill Florac
2255 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2256 packet on a udp pcb binded on an netif's IP address, and not on "any".
2258 2007-08-09 Frédéric Bernon, Bill Florac
2259 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2260 This is mainly on using lookup/lookfor, and some coding styles...
2262 2007-07-26 Frédéric Bernon (and "thedoctor")
2263 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2265 2007-07-25 Simon Goldschmidt
2266 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2267 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2268 (tcp_output is called again later from tcp timers).
2270 2007-07-25 Simon Goldschmidt
2271 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2272 copy_from_pbuf, which illegally modified the given pbuf.
2274 2007-07-25 Simon Goldschmidt
2275 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2276 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2278 2007-07-24 Simon Goldschmidt
2279 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2280 correct state (must be CLOSED).
2282 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2283 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2284 allocation. It now returns NULL.
2286 2007-07-13 Frédéric Bernon
2287 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2290 2007-07-13 Frédéric Bernon
2291 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2292 because current code doesn't follow rawapi.txt documentation.
2294 2007-07-13 Kieran Mansley
2295 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2296 out of sequence processing of received packets
2298 2007-07-03 Simon Goldschmidt
2299 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2300 assumption is made that this pbuf is in one piece (i.e. not chained). These
2301 assumptions clash with the possibility of converting to fully pool-based
2302 pbuf implementations, where PBUF_RAM pbufs might be chained.
2304 2007-07-03 Simon Goldschmidt
2305 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2306 when closing tcp netconns: removed conn->sem, less context switches when
2307 closing, both netconn_close and netconn_delete should safely close tcp
2310 2007-07-02 Simon Goldschmidt
2311 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2312 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2313 to cache ARP table indices with each pcb instead of single-entry cache for
2316 2007-07-02 Simon Goldschmidt
2317 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2318 warnings when assigning to smaller types.
2320 2007-06-28 Simon Goldschmidt
2321 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2323 2007-06-28 Simon Goldschmidt
2324 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2325 a segment contained chained pbufs)
2327 2007-06-28 Frédéric Bernon
2328 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2329 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2330 possible to define this macro in your own lwipopts.h to always use C library's
2331 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2333 2007-06-28 Frédéric Bernon
2334 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2335 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2336 in api_lib/api_msg (use pointers and not type with table, etc...)
2338 2007-06-26 Simon Goldschmidt
2339 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2341 2007-06-25 Simon Goldschmidt
2342 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2343 for udp packets with no matching pcb.
2345 2007-06-25 Simon Goldschmidt
2346 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2347 could get udp input packets if the remote side matched.
2349 2007-06-13 Simon Goldschmidt
2350 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2351 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2353 2007-06-13 Simon Goldschmidt
2354 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2355 -> netconn_new_..() does not allocate a new connection for unsupported
2358 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2359 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2360 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2362 2007-06-13 Frédéric Bernon, Matthias Weisser
2363 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2364 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2365 some macro names collision with some OS macros.
2367 2007-06-11 Simon Goldschmidt
2368 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2369 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2370 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2373 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2374 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2375 where TCP flags wasn't initialized in tcp_keepalive.
2377 2007-06-03 Simon Goldschmidt
2378 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2379 registered, p->payload was modified without modifying p->len if sending
2380 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2382 2007-06-03 Simon Goldschmidt
2383 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2384 re-used the input pbuf even if that didn't have enough space to include the
2385 link headers. Now the space is tested and a new pbuf is allocated for the
2386 echo response packet if the echo request pbuf isn't big enough.
2388 2007-06-01 Simon Goldschmidt
2389 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2391 2007-05-23 Frédéric Bernon
2392 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2393 allocated by do_listen if success) and netconn_accept errors handling. In
2394 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2395 by ASSERT, except for netconn_delete.
2397 2007-05-23 Frédéric Bernon
2398 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2399 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2400 directly close the recvmbox).
2402 2007-05-22 Simon Goldschmidt
2403 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2404 bound but unconnected (and non-listening) tcp_pcbs.
2406 2007-05-22 Frédéric Bernon
2407 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2408 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2409 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2410 like "sys_timeout" in their application threads.
2412 2007-05-22 Frédéric Bernon
2413 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2414 which parameters are used by which do_xxx function, and to avoid "misusing"
2415 parameters (patch #5938).
2417 2007-05-22 Simon Goldschmidt
2418 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2419 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2420 is only 8 bits wide. This affects the api, as there, the protocol was
2423 2007-05-18 Simon Goldschmidt
2424 * memp.c: addition to patch #5913: smaller pointer was returned but
2425 memp_memory was the same size -> did not save memory.
2427 2007-05-16 Simon Goldschmidt
2428 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2431 2007-05-16 Simon Goldschmidt
2432 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2433 as the one of the netif used for sending to prevent sending from old
2434 addresses after a netif address gets changed (partly fixes bug #3168).
2436 2007-05-16 Frédéric Bernon
2437 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2438 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2439 tcpip_init) because we have to be sure that network interfaces are already
2440 added (mac filter is updated only in igmp_init for the moment).
2442 2007-05-16 Simon Goldschmidt
2443 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2444 into sys_arch_sem_wait calls to prevent timers from running while waiting
2445 for the heap. This fixes bug #19167.
2447 2007-05-13 Simon Goldschmidt
2448 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2449 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2452 2007-05-07 Simon Goldschmidt
2453 * mem.c: Another attempt to fix bug #17922.
2455 2007-05-04 Simon Goldschmidt
2456 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2457 implementation so that it can be reused (don't allocate the target
2458 pbuf inside pbuf_copy()).
2460 2007-05-04 Simon Goldschmidt
2461 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2462 to save a little RAM (next pointer of memp is not used while not in pool).
2465 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2468 2007-04-23 Simon Goldschmidt
2469 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2470 in NULL reference for incoming TCP packets". Loopif has to be configured
2471 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2472 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2473 putting packets on a list that is fed to the stack by calling loopif_poll()
2474 (single-thread / NO_SYS / polling environment where e.g.
2475 netif->input() = ip_input).
2477 2007-04-17 Jonathan Larmour
2478 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2479 the difference between two u16_t's.
2480 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2481 MEMP_NUM_NETCONN in sockets.c right now.
2483 2007-04-12 Jonathan Larmour
2484 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2486 2007-04-12 Kieran Mansley
2487 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2488 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2490 2007-04-11 Simon Goldschmidt
2491 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2492 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2493 pbuf.c: removed functions no needed any more (by etharp).
2495 2007-04-11 Kieran Mansley
2496 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2497 "Constant is long" warnings with 16bit compilers. Contributed by
2498 avatar@mmlab.cse.yzu.edu.tw
2500 2007-04-05 Frédéric Bernon, Jonathan Larmour
2501 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2502 the mailbox is active". Now, the post is only done during a connect, and do_send,
2503 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2505 2007-04-03 Frédéric Bernon
2506 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2507 packets. See patch #5834.
2509 2007-03-30 Frédéric Bernon
2510 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2511 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2513 2007-03-30 Frédéric Bernon
2514 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2515 others environment defines (these were too "generic").
2517 2007-03-28 Frédéric Bernon
2518 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2519 result and can cause a crash. lwip_send now check netbuf_ref result.
2521 2007-03-28 Simon Goldschmidt
2522 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2523 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2524 defined. This is the way it should have been already (looking at
2527 2007-03-28 Kieran Mansley
2528 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2529 IP and TCP headers *and* physical link headers
2531 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2532 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2533 to send some garbage. It is not a definitive solution, but the patch does solve
2534 the problem for most cases.
2536 2007-03-22 Frédéric Bernon
2537 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2539 2007-03-22 Frédéric Bernon
2540 * api_lib.c: somes resources couldn't be freed if there was errors during
2541 netconn_new_with_proto_and_callback.
2543 2007-03-22 Frédéric Bernon
2544 * ethernetif.c: update netif->input calls to check return value. In older ports,
2545 it's a good idea to upgrade them, even if before, there could be another problem
2546 (access to an uninitialized mailbox).
2548 2007-03-21 Simon Goldschmidt
2549 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2550 by casting to unsigned).
2552 2007-03-21 Frédéric Bernon
2553 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2554 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2555 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2556 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2557 faster and more reliable communication between api_lib and tcpip.
2559 2007-03-21 Frédéric Bernon
2560 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2562 2007-03-21 Frédéric Bernon
2563 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2565 2007-03-21 Kieran Mansley
2566 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2569 2007-03-21 Kieran Mansley
2570 * Fix all uses of pbuf_header to check the return value. In some
2571 cases just assert if it fails as I'm not sure how to fix them, but
2572 this is no worse than before when they would carry on regardless
2575 2007-03-21 Kieran Mansley
2576 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2577 comment out missing header include in icmp.c
2579 2007-03-20 Frédéric Bernon
2580 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2581 synchronized with memp.h.
2583 2007-03-20 Frédéric Bernon
2584 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2585 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2586 network interfaces. Also fix a compiler warning.
2588 2007-03-20 Kieran Mansley
2589 * udp.c: Only try and use pbuf_header() to make space for headers if
2590 not a ROM or REF pbuf.
2592 2007-03-19 Frédéric Bernon
2593 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2596 2007-03-19 Frédéric Bernon
2597 * Remove unimplemented "memp_realloc" function from memp.h.
2599 2007-03-11 Simon Goldschmidt
2600 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2603 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2604 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2605 (missing `const' qualifier in socket functions), to get more compatible to
2606 standard POSIX sockets.
2608 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2609 * sockets.c: Add asserts inside bind, connect and sendto to check input
2610 parameters. Remove excessive set_errno() calls after get_socket(), because
2611 errno is set inside of get_socket(). Move last sock_set_errno() inside
2614 2007-03-09 Simon Goldschmidt
2615 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2616 was allocated too small.
2618 2007-03-06 Simon Goldschmidt
2619 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2620 the stack from concurrent access.
2622 2007-03-06 Frédéric Bernon, Dmitry Potapov
2623 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2624 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2626 2007-03-06 Simon Goldschmidt
2627 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2628 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2630 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2631 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2632 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2633 Allow to do ARP processing for incoming packets inside tcpip_thread
2634 (protecting ARP layer against concurrent access). You can also disable
2635 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2636 Older ports have to use tcpip_ethinput.
2638 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2639 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2640 from pointer target type"
2642 2007-03-05 Frédéric Bernon
2643 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2644 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2646 2007-03-04 Frédéric Bernon
2647 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2650 2007-03-04 Frédéric Bernon
2651 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2653 The api_msg struct stay on the stack (not moved to netconn struct).
2655 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2656 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2657 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2658 Also fixed cast warning in pbuf_alloc()
2660 2007-03-04 Simon Goldschmidt
2661 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2662 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2664 2007-03-03 Frédéric Bernon
2665 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2666 It is static, and never used in udp.c except udp_init().
2668 2007-03-02 Simon Goldschmidt
2669 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2670 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2671 initialized before tcpip_thread is running (e.g. before OS is started)
2673 2007-03-02 Frédéric Bernon
2674 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2677 2007-02-28 Kieran Mansley
2678 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2679 outside the region of the pbuf by pbuf_header()
2681 2007-02-28 Kieran Mansley
2682 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2683 when supplied timeout is also non-zero
2687 2006-12-05 Leon Woestenberg
2688 * CHANGELOG: Mention STABLE-1.2.0 release.
2692 2006-12-01 Christiaan Simons
2693 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2694 Note this is a workaround. Currently I have no other options left.
2696 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2697 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2698 to include/lwip/opt.h.
2699 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2700 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2701 * opt.h: Add above new options.
2703 2006-08-18 Christiaan Simons
2704 * tcp_{in,out}.c: added SNMP counters.
2705 * ipv4/ip.c: added SNMP counters.
2706 * ipv4/ip_frag.c: added SNMP counters.
2708 2006-08-08 Christiaan Simons
2709 * etharp.{c,h}: added etharp_find_addr() to read
2710 (stable) ethernet/IP address pair from ARP table
2712 2006-07-14 Christiaan Simons
2713 * mib_structs.c: added
2714 * include/lwip/snmp_structs.h: added
2715 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2717 2006-07-06 Christiaan Simons
2718 * snmp/asn1_{enc,dec}.c added
2720 * snmp/msg_{in,out}.c added
2721 * include/lwip/snmp_asn1.h added
2722 * include/lwip/snmp_msg.h added
2723 * doc/snmp_agent.txt added
2725 2006-03-29 Christiaan Simons
2726 * inet.c, inet.h: Added platform byteswap support.
2727 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2728 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2732 2006-11-30 Christiaan Simons
2733 * dhcp.c: Fixed false triggers of request_timeout.
2735 2006-11-28 Christiaan Simons
2736 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2738 2006-10-11 Christiaan Simons
2739 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2740 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2741 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2742 identifier from 170 to 136 (bug #17574).
2744 2006-10-10 Christiaan Simons
2745 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2747 2006-08-17 Christiaan Simons
2748 * udp.c: Fixed bug #17200, added check for broadcast
2749 destinations for PCBs bound to a unicast address.
2751 2006-08-07 Christiaan Simons
2752 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2754 2006-06-27 Christiaan Simons
2755 * api_msg.c: Applied patch for cold case (bug #11135).
2756 In accept_function() ensure newconn->callback is always initialized.
2758 2006-06-15 Christiaan Simons
2759 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2760 facilitate printing of mem_size_t and u16_t statistics.
2762 2006-06-14 Christiaan Simons
2763 * api_msg.c: Applied patch #5146 to handle allocation failures
2764 in accept() by Kevin Lawson.
2766 2006-05-26 Christiaan Simons
2767 * api_lib.c: Removed conn->sem creation and destruction
2768 from netconn_write() and added sys_sem_new to netconn_new_*.
2772 2006-03-03 Christiaan Simons
2773 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2774 access and added pbuf_alloc() return value checks.
2776 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2777 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2778 now handled by the checksum routine properly.
2780 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2781 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2782 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2784 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2785 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2786 submitted by Mitrani Hiroshi.
2788 2005-12-15 Christiaan Simons
2789 * inet.c: Disabled the added summing routine to preserve code space.
2791 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2792 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2793 Added Curt McDowell's optimized checksumming routine for future
2794 inclusion. Need to create test case for unaliged, aligned, odd,
2795 even length combination of cases on various endianess machines.
2797 2005-12-09 Christiaan Simons
2798 * inet.c: Rewrote standard checksum routine in proper portable C.
2800 2005-11-25 Christiaan Simons
2801 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2802 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2803 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2805 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2806 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2807 routine by Peter Jolasson.
2808 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2810 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2811 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2812 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2814 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2815 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2817 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2818 * udp.c: UDP pcb->recv() was called even when it was NULL.
2822 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2823 * etharp.*: Disabled multiple packets on the ARP queue.
2824 This clashes with TCP queueing.
2826 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2827 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2828 Halved the ARP period, doubled the period counts.
2829 ETHARP_MAX_PENDING now should be at least 2. This prevents
2830 the counter from reaching 0 right away (which would allow
2831 too little time for ARP responses to be received).
2833 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2834 * dhcp.c: Decline messages were not multicast but unicast.
2835 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2836 Do not try hard to insert arbitrary packet's source address,
2837 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2838 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2839 querying an address will see it appear in the cache (DHCP could
2840 suffer from this when a server invalidly gave an in-use address.)
2841 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2842 comparing network addresses (identifiers), not the network masks
2844 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2845 IP address actually belongs to the network of the given interface.
2847 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2848 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2852 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2853 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2854 even if one is already pending, if the rcv_wnd is above a threshold
2855 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2856 delayed ACK in order to open the window if the stack is only receiving data.
2858 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2859 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2861 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2862 * etharp.c: Make sure the first pbuf queued on an ARP entry
2863 is properly ref counted.
2865 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2866 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2867 warnings about comparison.
2868 * pbuf.c: Stopped compiler complaining of empty if statement
2869 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2870 * tcp.c: Stopped compiler complaining of empty if statement
2871 when LWIP_DEBUGF() empty.
2872 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2873 * inet.c: Added a couple of casts to quiet the compiler.
2874 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2876 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2877 * inet.c: Made data types consistent in inet_ntoa().
2878 Added casts for return values of checksum routines, to pacify compiler.
2879 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2880 Small corrections to some debugging statements, to pacify compiler.
2882 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2883 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2884 * ethernetif.c Updated low_level_output() to match prototype for
2885 netif->linkoutput and changed low_level_input() similarly for consistency.
2886 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2887 of raw_recv() in raw.h and so avoid compiler error.
2888 * sockets.c: Added trivial (int) cast to keep compiler happier.
2889 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2895 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2896 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2897 your cc.h file defines this either 1 or 0. If non-defined,
2899 * .c: Added <string.h> and <errno.h> includes where used.
2900 * etharp.c: Made some array indices unsigned.
2902 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2903 * netif.*: Added netif_set_up()/down().
2904 * dhcp.c: Changes to restart program flow.
2906 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2907 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2908 single-pass lookup for different candidates. Should exploit locality.
2910 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2911 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2912 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2913 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2914 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2918 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2919 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2920 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2921 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2922 is to prefix the 14-bit Ethernet headers with two padding bytes.
2924 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2925 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2926 * etharp.c: Fixed the case where the packet that initiates the ARP request
2927 is not queued, and gets lost. Fixed the case where the packets destination
2928 address is already known; we now always queue the packet and perform an ARP
2935 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2936 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2937 * Fixed two possible NULL references in rare cases.
2943 * Fixed DHCP which did not include the IP address in DECLINE messages.
2947 * etharp.c has been hauled over a bit.
2953 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2954 * Packets sent from ARP queue had invalid source hardware address.
2958 * Pass-by ARP requests do now update the cache.
2962 * No longer dependent on ctype.h.
2963 * New socket options.
2964 * Raw IP pcb support.
2970 * Some debug formatters and casts fixed.
2971 * Numereous fixes in PPP.
2975 * DEBUGF now is LWIP_DEBUGF
2976 * pbuf_dechain() has been re-enabled.
2977 * Mentioned the changed use of CVS branches in README.
2983 * Fixed pool pbuf memory leak in pbuf_alloc().
2984 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2985 Reported by Savin Zlobec.
2987 * PBUF_POOL chains had their tot_len field not set for non-first
2988 pbufs. Fixed in pbuf_alloc().
2992 * Added PPP stack contributed by Marc Boucher
2996 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2998 * ARP queueuing now queues the latest packet instead of the first.
2999 This is the RFC recommended behaviour, but can be overridden in
3006 * TCP has been fixed to deal with the new use of the pbuf->ref
3009 * DHCP dhcp_inform() crash bug fixed.
3013 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3014 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3015 Implemented by David Haas.
3021 * The packet buffer implementation has been enhanced to support
3022 zero-copy and copy-on-demand for packet buffers which have their
3023 payloads in application-managed memory.
3024 Implemented by David Haas.
3026 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3027 if an outgoing packet can be directly sent on the link, or perform
3028 a copy-on-demand when necessary.
3030 The application can safely assume the packet is sent, and the RAM
3031 is available to the application directly after calling udp_send()
3032 or similar function.
3036 * ARP_QUEUEING should now correctly work for all cases, including
3038 Implemented by Leon Woestenberg.
3042 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3043 to a '0.0.0.0' IP address.
3045 * The packet buffer implementation is changed. The pbuf->ref counter
3046 meaning has changed, and several pbuf functions have been
3047 adapted accordingly.
3049 * netif drivers have to be changed to set the hardware address length field
3050 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3051 See the contrib/ports/c16x cs8900 driver as a driver example.
3053 * netif's have a dhcp field that must be initialized to NULL by the driver.
3054 See the contrib/ports/c16x cs8900 driver as a driver example.
3056 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3057 logged in CVS but have not been explained here.
3059 (0.5.3) Changes since version 0.5.2
3063 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3064 threads because it wasn't protected by semaphores.
3068 * struct ip_addr now packed.
3070 * The name of the time variable in arp.c has been changed to ctime
3071 to avoid conflicts with the time() function.
3073 (0.5.2) Changes since version 0.5.1
3077 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3081 * A bug in tcp_parseopt() could cause the stack to hang because of a
3082 malformed TCP option.
3084 * The address of new connections in the accept() function in the BSD
3085 socket library was not handled correctly.
3087 * pbuf_dechain() did not update the ->tot_len field of the tail.
3089 * Aborted TCP connections were not handled correctly in all
3094 * All protocol header structs are now packed.
3096 * The ->len field in the tcp_seg structure now counts the actual
3097 amount of data, and does not add one for SYN and FIN segments.
3099 (0.5.1) Changes since version 0.5.0
3103 * Possible to run as a user process under Linux.
3105 * Preliminary support for cross platform packed structs.
3107 * ARP timer now implemented.
3111 * TCP output queue length was badly initialized when opening
3114 * TCP delayed ACKs were not sent correctly.
3116 * Explicit initialization of BSS segment variables.
3118 * read() in BSD socket library could drop data.
3120 * Problems with memory alignment.
3122 * Situations when all TCP buffers were used could lead to
3125 * TCP MSS option wasn't parsed correctly.
3127 * Problems with UDP checksum calculation.
3129 * IP multicast address tests had endianess problems.
3131 * ARP requests had wrong destination hardware address.
3135 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3137 * A ->linkoutput() member was added to struct netif.
3139 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3141 * ntoh* macros are now null definitions for big endian CPUs.
3143 (0.5.0) Changes since version 0.4.2
3147 * Redesigned operating system emulation layer to make porting easier.
3149 * Better control over TCP output buffers.
3151 * Documenation added.
3155 * Locking issues in buffer management.
3157 * Bugfixes in the sequential API.
3159 * IP forwarding could cause memory leakage. This has been fixed.
3163 * Directory structure somewhat changed; the core/ tree has been
3166 (0.4.2) Changes since version 0.4.1
3170 * Experimental ARP implementation added.
3172 * Skeleton Ethernet driver added.
3174 * Experimental BSD socket API library added.
3178 * In very intense situations, memory leakage could occur. This has
3183 * Variables named "data" and "code" have been renamed in order to
3184 avoid name conflicts in certain compilers.
3186 * Variable++ have in appliciable cases been translated to ++variable
3187 since some compilers generate better code in the latter case.
3189 (0.4.1) Changes since version 0.4
3193 * TCP: Connection attempts time out earlier than data
3194 transmissions. Nagle algorithm implemented. Push flag set on the
3195 last segment in a burst.
3197 * UDP: experimental support for UDP-Lite extensions.
3201 * TCP: out of order segments were in some cases handled incorrectly,
3202 and this has now been fixed. Delayed acknowledgements was broken
3203 in 0.4, has now been fixed. Binding to an address that is in use
3204 now results in an error. Reset connections sometimes hung an
3205 application; this has been fixed.
3207 * Checksum calculation sometimes failed for chained pbufs with odd
3208 lengths. This has been fixed.
3210 * API: a lot of bug fixes in the API. The UDP API has been improved
3211 and tested. Error reporting and handling has been
3212 improved. Logical flaws and race conditions for incoming TCP
3213 connections has been found and removed.
3215 * Memory manager: alignment issues. Reallocating memory sometimes
3216 failed, this has been fixed.
3218 * Generic library: bcopy was flawed and has been fixed.
3222 * API: all datatypes has been changed from generic ones such as
3223 ints, to specified ones such as u16_t. Functions that return
3224 errors now have the correct type (err_t).
3226 * General: A lot of code cleaned up and debugging code removed. Many
3227 portability issues have been fixed.
3229 * The license was changed; the advertising clause was removed.
3233 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3234 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3237 (0.4) Changes since version 0.3.1
3239 * Memory management has been radically changed; instead of
3240 allocating memory from a shared heap, memory for objects that are
3241 rapidly allocated and deallocated is now kept in pools. Allocation
3242 and deallocation from those memory pools is very fast. The shared
3243 heap is still present but is used less frequently.
3245 * The memory, memory pool, and packet buffer subsystems now support
3246 4-, 2-, or 1-byte alignment.
3248 * "Out of memory" situations are handled in a more robust way.
3250 * Stack usage has been reduced.
3252 * Easier configuration of lwIP parameters such as memory usage,
3253 TTLs, statistics gathering, etc. All configuration parameters are
3254 now kept in a single header file "lwipopts.h".
3256 * The directory structure has been changed slightly so that all
3257 architecture specific files are kept under the src/arch
3260 * Error propagation has been improved, both in the protocol modules
3263 * The code for the RTXC architecture has been implemented, tested
3266 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3267 the Internet checksum modules.
3269 * Bugs related to porting between a 32-bit and a 16-bit architecture
3270 have been found and corrected.
3272 * The license has been changed slightly to conform more with the
3273 original BSD license, including the advertisement clause.
3275 (0.3.1) Changes since version 0.3
3277 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3278 RAM never returned the RAM when the pbuf was deallocated.
3280 * TCP congestion control, window updates and retransmissions did not
3281 work correctly. This has now been fixed.
3283 * Bugfixes in the API.
3285 (0.3) Changes since version 0.2
3287 * New and improved directory structure. All include files are now
3288 kept in a dedicated include/ directory.
3290 * The API now has proper error handling. A new function,
3291 netconn_err(), now returns an error code for the connection in
3294 * Improvements in the memory management subsystem. The system now
3295 keeps a pointer to the lowest free memory block. A new function,
3296 mem_malloc2() tries to allocate memory once, and if it fails tries
3297 to free some memory and retry the allocation.
3299 * Much testing has been done with limited memory
3300 configurations. lwIP now does a better job when overloaded.
3302 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3304 * Many bugfixes in the TCP code:
3306 - Fixed a bug in tcp_close().
3308 - The TCP receive window was incorrectly closed when out of
3309 sequence segments was received. This has been fixed.
3311 - Connections are now timed-out of the FIN-WAIT-2 state.
3313 - The initial congestion window could in some cases be too
3314 large. This has been fixed.
3316 - The retransmission queue could in some cases be screwed up. This
3319 - TCP RST flag now handled correctly.
3321 - Out of sequence data was in some cases never delivered to the
3322 application. This has been fixed.
3324 - Retransmitted segments now contain the correct acknowledgment
3325 number and advertised window.
3327 - TCP retransmission timeout backoffs are not correctly computed
3328 (ala BSD). After a number of retransmissions, TCP now gives up
3331 * TCP connections now are kept on three lists, one for active
3332 connections, one for listening connections, and one for
3333 connections that are in TIME-WAIT. This greatly speeds up the fast
3334 timeout processing for sending delayed ACKs.
3336 * TCP now provides proper feedback to the application when a
3337 connection has been successfully set up.
3339 * More comments have been added to the code. The code has also been
3340 somewhat cleaned up.
3342 (0.2) Initial public release.