5 * [Enter new changes just after this line - do not remove this line]
9 2011-09-27: Simon Goldschmidt
10 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
11 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
13 2011-09-21: Simon Goldschmidt
14 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
15 send (TCP only, bug #33820)
17 2011-09-21: Simon Goldschmidt
18 * init.c: Converted runtime-sanity-checks into compile-time checks that can
19 be disabled (since runtime checks can often not be seen on embedded targets)
21 2011-09-11: Simon Goldschmidt
22 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
23 to get a clear separation of which functions an application or port may use
26 2011-09-11: Simon Goldschmidt
27 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
28 initial local TCP/UDP ports (so that different port ranges are used after
29 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
31 2011-09-03: Simon Goldschmidt
32 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
34 2011-08-24: Simon Goldschmidt
35 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
37 2011-07-26: Simon Goldschmidt
38 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
39 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
41 2011-07-21: Simon Goldschmidt (patch by hanhui)
42 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
43 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
44 Also added code to allow ip_forward() to forward non-broadcast packets to
45 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
47 2011-07-21: Simon Goldschmidt
48 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
49 ioctl/FIONREAD return the size of the next pending datagram.
51 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
52 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
55 2011-05-25: Simon Goldschmidt
56 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
57 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
58 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
59 code so that the code is more readable.
61 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
62 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
63 Ivan! (this is work in progress: we're just post release anyway :-)
65 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
66 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
72 2011-11-22: Simon Goldschmidt
73 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
76 2011-10-28: Simon Goldschmidt
77 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
79 2011-10-23: Simon Goldschmidt
80 * mem.c: fixed bug #34429: possible memory corruption with
81 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
83 2011-10-18: Simon Goldschmidt
84 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
87 2011-10-18: Simon Goldschmidt
88 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
89 windows (bug #34176 select after non-blocking send times out)
91 2011-10-18: Simon Goldschmidt
92 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
93 consider netif->mtu, causes slow network
95 2011-10-18: Simon Goldschmidt
96 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
98 2011-10-18: Simon Goldschmidt
99 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
101 2011-10-17: Simon Goldschmidt
102 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
104 2011-10-13: Simon Goldschmidt
105 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
106 zero window is received) by starting the persist timer when a zero window is
107 received, not when we have more data queued for sending than fits into the
110 2011-10-13: Simon Goldschmidt
111 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
113 2011-10-13: Simon Goldschmidt
114 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
115 used and not all protocols are enabled
117 2011-10-12: Simon Goldschmidt
118 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
120 2011-10-09: Simon Goldschmidt
121 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
122 byte value when pcb->unacked != NULL
124 2011-10-09: Simon Goldschmidt
125 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
127 2011-09-27: Simon Goldschmidt
128 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
130 2011-09-27: Simon Goldschmidt
131 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
133 2011-09-27: Simon Goldschmidt
134 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
136 2011-09-24: Simon Goldschmidt
137 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
139 2011-09-23: Simon Goldschmidt
140 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
141 the last packet including FIN can lose data
143 2011-09-22: Simon Goldschmidt
144 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
147 2011-09-21: Simon Goldschmidt
148 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
151 2011-09-20: Simon Goldschmidt
152 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
154 2011-09-11: Simon Goldschmidt
155 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
158 2011-09-09: Simon Goldschmidt
159 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
162 2011-09-03: Simon Goldschmidt
163 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
164 is aggregated and sent to application
166 2011-09-01: Simon Goldschmidt
167 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
170 2011-09-01: Simon Goldschmidt
171 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
173 2011-08-24: Simon Goldschmidt
174 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
176 2011-08-24: Simon Goldschmidt
177 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
178 accept() on UDP connections
180 2011-08-24: Simon Goldschmidt
181 * sockets.h: fixed bug #34057 socklen_t should be a typedef
183 2011-08-24: Simon Goldschmidt
184 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
186 2011-08-24: Simon Goldschmidt
187 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
189 2011-08-24: Simon Goldschmidt
190 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
192 2011-08-22: Simon Goldschmidt
193 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
194 merely prevents nagle from not transmitting fast after closing.)
196 2011-07-22: Simon Goldschmidt
197 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
198 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
199 lwip_send() sends as much as possible for non-blocking sockets
201 2011-07-22: Simon Goldschmidt
202 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
203 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
204 at regular intervals from main level.
206 2011-07-21: Simon Goldschmidt
207 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
208 sending an ARP request when an ARP entry is used in the last minute before
211 2011-07-04: Simon Goldschmidt
212 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
214 2011-06-26: Simon Goldschmidt
215 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
216 updating its documentation only.
218 2011-06-26: Simon Goldschmidt
219 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
222 2011-06-26: Simon Goldschmidt
223 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
231 2011-03-27: Simon Goldschmidt
232 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
233 calculate it in tcp_zero_window_probe (the only place where it was used).
235 2010-11-21: Simon Goldschmidt
236 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
239 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
240 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
241 IP_MULTICAST_LOOP at socket- and raw-API level.
243 2010-06-16: Simon Goldschmidt
244 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
245 link-layer-addressed UDP traffic to be received while a netif is down (just
246 like DHCP during configuration)
248 2010-05-22: Simon Goldschmidt
249 * many many files: bug #27352: removed packing from ip_addr_t, the packed
250 version is now only used in protocol headers. Added global storage for
251 current src/dest IP address while in input functions.
253 2010-05-16: Simon Goldschmidt
254 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
255 calculation (and use them throughout the stack where applicable)
257 2010-05-16: Simon Goldschmidt
258 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
259 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
261 2010-05-16: Simon Goldschmidt
262 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
263 MEMP pool instead of the heap
265 2010-05-13: Simon Goldschmidt
266 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
267 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
268 packets to more than one pcb.
270 2010-05-02: Simon Goldschmidt
271 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
272 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
274 2010-04-30: Simon Goldschmidt
275 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
276 take a precalculated checksum, added pbuf_fill_chksum() to copy data
277 into a pbuf and at the same time calculating the checksum for that data
279 2010-04-29: Simon Goldschmidt
280 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
281 2-byte-aligned IP addresses and MAC addresses
283 2010-04-28: Patch by Bill Auerbach
284 * ip.c: Inline generating IP checksum to save a function call
286 2010-04-14: Simon Goldschmidt
287 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
288 tcpip_thread processes messages or timeouts to implement a watchdog.
290 2010-03-28: Simon Goldschmidt
291 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
292 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
294 2010-03-27: Simon Goldschmidt
295 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
296 etharp_query to prevent unnecessary function calls (inspired by
299 2010-03-20: Simon Goldschmidt
300 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
301 since the linker cannot do this automatically to save space.
303 2010-03-20: Simon Goldschmidt
304 * opt.h, etharp.c/.h: Added support for static ARP table entries
306 2010-03-14: Simon Goldschmidt
307 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
308 when creating TCP segments, not when (re-)transmitting them.
310 2010-03-07: Simon Goldschmidt
311 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
312 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
313 This should speed up receiving data on sockets as the select code in
314 event_callback is only executed when select is waiting.
316 2010-03-06: Simon Goldschmidt
317 * tcp_out.c: task #7013 (Create option to have all packets delivered to
318 netif->output in one piece): Always copy to try to create single pbufs
321 2010-03-06: Simon Goldschmidt
322 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
323 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
324 for tcp netconns to receive pbufs, not netbufs; use that function
327 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
328 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
329 Work on tcp_enqueue: Don't waste memory when chaining segments,
330 added option TCP_OVERSIZE to prevent creating many small pbufs when
331 calling tcp_write with many small blocks of data. Instead, pbufs are
332 allocated larger than needed and the space is used for later calls to
335 2010-02-21: Simon Goldschmidt
336 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
339 2010-02-21: Simon Goldschmidt
340 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
341 implementation of tcp to make API usage cleare to application programmers
343 2010-02-14: Simon Goldschmidt/Stephane Lesage
344 * ip_addr.h: Improved some defines working on ip addresses, added faster
345 macro to copy addresses that cannot be NULL
347 2010-02-13: Simon Goldschmidt
348 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
349 blocking send operation)
351 2010-02-12: Simon Goldschmidt
352 * sockets.c/.h: Added a minimal version of posix fctl() to have a
353 standardised way to set O_NONBLOCK for nonblocking sockets.
355 2010-02-12: Simon Goldschmidt
356 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
357 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
358 and dhcp work with user-allocated structs instead of callin mem_malloc
360 2010-02-12: Simon Goldschmidt/Jeff Barber
361 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
362 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
364 2010-02-12: Simon Goldschmidt
365 * sys layer: task #10139 (Prefer statically allocated memory): converted
366 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
367 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
368 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
369 to let sys.h use binary semaphores instead of mutexes - as before)
371 2010-02-09: Simon Goldschmidt (Simon Kallweit)
372 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
373 (Restart system timeout handling)
375 2010-02-09: Simon Goldschmidt
376 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
377 netif.c) - loopif does not have to be created by the port any more,
378 just define LWIP_HAVE_LOOPIF to 1.
380 2010-02-08: Simon Goldschmidt
381 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
382 inet_ntoa_r/ipaddr_ntoa_r
384 2010-02-08: Simon Goldschmidt
385 * netif.h: Added netif_s/get_igmp_mac_filter() macros
387 2010-02-05: Simon Goldschmidt
388 * netif.h: Added function-like macros to get/set the hostname on a netif
390 2010-02-04: Simon Goldschmidt
391 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
392 make changing the actual implementation behind the typedef easier.
394 2010-02-01: Simon Goldschmidt
395 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
396 for allocating memory when getaddrinfo() is called.
398 2010-01-31: Simon Goldschmidt
399 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
400 them once instead of parsing for every option. This also removes
401 the need for mem_malloc from dhcp_recv and makes it possible to
402 correctly retrieve the BOOTP file.
404 2010-01-30: simon Goldschmidt
405 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
408 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
409 * api.h, api_msg.c, sockets.c: Added except set support in select
412 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
413 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
414 Add non-blocking support for connect (partly from patch #6860),
415 plus many cleanups in socket & netconn API.
417 2010-01-27: Simon Goldschmidt
418 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
419 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
421 2010-01-26: Simon Goldschmidt
422 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
424 2010-01-14: Simon Goldschmidt
425 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
426 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
428 2010-01-13: Simon Goldschmidt
429 * mem.c: The heap now may be moved to user-defined memory by defining
430 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
431 (patch #6966 and bug #26133)
433 2010-01-10: Simon Goldschmidt (Bill Auerbach)
434 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
437 2010-01-10: Simon Goldschmidt
438 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
439 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
441 2009-12-31: Simon Goldschmidt
442 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
443 added timers.c/.h: Separated timer implementation from semaphore/mbox
444 implementation, moved timer implementation to timers.c/.h, timers are
445 now only called from tcpip_thread or by explicitly checking them.
448 2009-12-27: Simon Goldschmidt
449 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
450 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
455 2011-04-20: Simon Goldschmidt
456 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
458 2011-04-13: Simon Goldschmidt
459 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
460 using ports in the IANA private/dynamic range (49152 through 65535).
462 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
463 * etharp.h/.c: Fixed broken VLAN support.
465 2011-03-27: Simon Goldschmidt
466 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
467 pcbs) by checking if the pcb was bound (local_port != 0).
469 2011-03-27: Simon Goldschmidt
470 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
472 2011-03-27: Simon Goldschmidt
473 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
474 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
476 2011-03-27: Simon Goldschmidt
477 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
478 is present never times out) by starting retransmission timer before checking
481 2011-03-22: Simon Goldschmidt
482 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
483 calling sio_read_abort() if the file descriptor is valid.
485 2011-03-14: Simon Goldschmidt
486 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
487 more than once can render a socket useless) since it mainly involves changing
488 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
490 2011-03-13: Simon Goldschmidt
491 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
492 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
493 use EALRADY instead of -1
495 2011-03-13: Simon Goldschmidt
496 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
497 connection has been aborted by err_tcp (since this is not a normal closing
500 2011-03-13: Simon Goldschmidt
501 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
502 with pcb->state != CLOSED
504 2011-02-17: Simon Goldschmidt
505 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
508 2011-02-17: Simon Goldschmidt
509 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
511 2011-01-24: Simon Goldschmidt
512 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
514 2010-12-02: Simon Goldschmidt
515 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
517 2010-11-23: Simon Goldschmidt
518 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
519 LWIP_SO_RCVBUF and ioctl/FIONREAD.
521 2010-11-23: Simon Goldschmidt
522 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
523 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
525 2010-11-23: Simon Goldschmidt
526 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
527 refusing 'refused_data' again.
529 2010-11-22: Simon Goldschmidt
530 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
531 after a successful nonblocking connection.
533 2010-11-22: Simon Goldschmidt
534 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
535 must be sent link-local
537 2010-11-22: Simon Goldschmidt
538 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
541 2010-11-20: Simon Goldschmidt
542 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
544 2010-11-20: Simon Goldschmidt
545 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
546 resemble other stacks.
548 2010-11-20: Simon Goldschmidt
549 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
550 no-copy TCP writes will never succeed.
552 2010-11-20: Simon Goldschmidt
553 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
554 not match documentation: return ERR_ARG instead of ERR_VAL if not
555 initialized or wrong argument.
557 2010-10-20: Simon Goldschmidt
558 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
560 2010-10-05: Simon Goldschmidt
561 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
562 replugging the network cable after an AutoIP address was assigned.
564 2010-08-10: Simon Goldschmidt
565 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
567 2010-08-03: Simon Goldschmidt
568 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
570 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
571 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
572 endian architectures)
574 2010-07-28: Simon Goldschmidt
575 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
578 2010-07-27: Simon Goldschmidt
579 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
580 harm but never did anything
582 2010-07-21: Simon Goldschmidt
583 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
586 2010-07-16: Kieran Mansley
587 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
589 2010-07-10: Simon Goldschmidt
590 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
592 2010-06-30: Simon Goldschmidt
593 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
596 2010-06-28: Kieran Mansley
597 * timers.c remove unportable printing of C function pointers
599 2010-06-24: Simon Goldschmidt
600 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
601 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
603 2010-06-24: Simon Goldschmidt
604 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
605 implemented shutdown at socket level.
607 2010-06-21: Simon Goldschmidt
608 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
609 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
610 custom pbufs that reference other (original) pbufs. Additionally set
611 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
613 2010-06-15: Simon Goldschmidt
614 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
616 2010-06-14: Simon Goldschmidt
617 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
619 2010-06-12: Simon Goldschmidt
620 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
623 2010-05-17: Simon Goldschmidt
624 * netdb.c: Correctly NULL-terminate h_addr_list
626 2010-05-16: Simon Goldschmidt
627 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
628 "symbol already defined" i.e. when linking to winsock
630 2010-05-05: Simon Goldschmidt
631 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
634 2010-04-21: Simon Goldschmidt
635 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
638 2010-03-28: Luca Ceresoli
639 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
641 2010-03-27: Luca Ceresoli
642 * mib2.c: patch #7130: remove meaningless const qualifiers
644 2010-03-26: Simon Goldschmidt
645 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
647 2010-03-26: Simon Goldschmidt
648 * various files: Fixed compiling with different options disabled (TCP/UDP),
649 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
651 2010-03-25: Simon Goldschmidt
652 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
654 2010-03-25: Simon Goldschmidt
655 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
656 overrunning our rcv_wnd in ooseq case.
658 2010-03-22: Simon Goldschmidt
659 * tcp.c: tcp_listen() did not copy the pcb's prio.
661 2010-03-19: Simon Goldschmidt
662 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
664 2010-03-14: Simon Goldschmidt
665 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
666 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
667 and basing PBUF_LINK_HLEN on it.
669 2010-03-08: Simon Goldschmidt
670 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
671 when assiging routable address): when checking incoming packets and
672 aborting existing connection on address change, filter out link-local
675 2010-03-06: Simon Goldschmidt
676 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
678 2010-03-06: Simon Goldschmidt
679 * ipv4/ip.c: Don't try to forward link-local addresses
681 2010-03-06: Simon Goldschmidt
682 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
685 2010-03-05: Simon Goldschmidt
686 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
689 2010-03-05: Simon Goldschmidt
690 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
691 into multiple calls to tcp_write.
693 2010-02-21: Simon Goldschmidt
694 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
695 the implementation of DNS_USES_STATIC_BUF==1)
697 2010-02-20: Simon Goldschmidt
698 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
699 close() vs. shutdown(). Now the application does not get any more
700 recv callbacks after calling tcp_close(). Added tcp_shutdown().
702 2010-02-19: Simon Goldschmidt
703 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
704 confusion with realloc()
706 2010-02-15: Simon Goldschmidt/Stephane Lesage
707 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
710 2010-02-14: Simon Goldschmidt
711 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
712 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
713 admin-status of a netif are up
715 2010-02-14: Simon Goldschmidt
716 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
717 reception and is not really necessary
719 2010-02-14: Simon Goldschmidt
720 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
721 request was directed as us (RFC 826, Packet Reception), otherwise
722 only update existing entries; internalized some functions
724 2010-02-14: Simon Goldschmidt
725 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
726 disabled on netif used for PPPoE) by adding a new netif flag
727 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
728 device but prevents usage of ARP (so that ethernet_input can be used
731 2010-02-12: Simon Goldschmidt
732 * netif.c: netif_set_link_up/down: only do something if the link state
735 2010-02-12: Simon Goldschmidt/Stephane Lesage
736 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
739 2010-02-12: Simon Goldschmidt
740 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
742 2010-02-09: Simon Goldschmidt
743 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
744 (recv() makes receive window update for data that wasn't received by
747 2010-02-09: Simon Goldschmidt/Stephane Lesage
748 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
749 or any netconn_recv() error)
751 2010-02-09: Simon Goldschmidt
752 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
754 2010-02-09: Simon Goldschmidt
755 * netif.c: For loopback packets, adjust the stats- and snmp-counters
756 for the loopback netif.
758 2010-02-08: Simon Goldschmidt
759 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
760 since they are not used anywhere else.
762 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
763 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
764 (patch from bug #28798)
766 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
767 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
768 another bug when LWIP_RAND() returns zero.
770 2010-02-04: Simon Goldschmidt
771 * nearly every file: Use macros defined in ip_addr.h (some of them new)
772 to work with IP addresses (preparation for bug #27352 - Change ip_addr
773 from struct to typedef (u32_t) - and better code).
775 2010-01-31: Simon Goldschmidt
776 * netif.c: Don't call the link-callback from netif_set_up/down() since
777 this invalidly retriggers DHCP.
779 2010-01-29: Simon Goldschmidt
780 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
781 portability file inet.h and its contents from the stack: moved htonX-
782 functions to def.h (and the new def.c - they are not ipv4 dependent),
783 let inet.h depend on ip_addr.h and not the other way round.
784 This fixes bug #28732.
786 2010-01-28: Kieran Mansley
787 * tcp.c: Ensure ssthresh >= 2*MSS
789 2010-01-27: Simon Goldschmidt
790 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
791 callback can lead to accessing unallocated memory. As a consequence,
792 ERR_ABRT means the application has called tcp_abort()!
794 2010-01-25: Simon Goldschmidt
795 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
796 not implemented in SNMP): write-only or not-accessible are still
797 returned by getnext (though not by get)
799 2010-01-24: Simon Goldschmidt
800 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
801 not use reserved C/C++ keywords
803 2010-01-23: Simon Goldschmidt
804 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
807 2010-01-21: Simon Goldschmidt
808 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
809 if tcp_enqueue fails) both in raw- and netconn-API
811 2010-01-19: Simon Goldschmidt
812 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
814 2010-01-18: Iordan Neshev/Simon Goldschmidt
815 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
816 bugfix backports from 2.4.x.
818 2010-01-18: Simon Goldschmidt
819 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
821 2010-01-17: Simon Goldschmidt
822 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
823 task #10102: "netconn: clean up conn->err threading issues" by adding
824 error return value to struct api_msg_msg
826 2010-01-17: Simon Goldschmidt
827 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
828 to return err_t (bugs #27709 and #28087)
830 2010-01-14: Simon Goldschmidt
831 * ...: Use typedef for function prototypes throughout the stack.
833 2010-01-13: Simon Goldschmidt
834 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
835 window = 0) by correctly draining recvmbox/acceptmbox
837 2010-01-11: Simon Goldschmidt
838 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
839 erroneous callbacks) by copying the code from recent pppd
841 2010-01-10: Simon Goldschmidt
842 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
844 2010-01-10: Simon Goldschmidt
845 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
847 2010-01-08: Simon Goldschmidt
848 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
850 2010-01-08: Simon Goldschmidt
851 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
852 passed to dns_local_addhost() might be volatile
854 2010-01-07: Simon Goldschmidt
855 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
857 2010-01-06: Simon Goldschmidt
858 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
860 2009-12-31: Simon Goldschmidt
861 * many ppp files: Reorganised PPP source code from ucip structure to pppd
862 structure to easily compare our code against the pppd code (around v2.3.1)
864 2009-12-27: Simon Goldschmidt
865 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
873 2009-10-27 Simon Goldschmidt/Stephan Lesage
874 * netifapi.c/.h: Added netifapi_netif_set_addr()
876 2009-10-07 Simon Goldschmidt/Fabian Koch
877 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
878 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
880 2009-08-26 Simon Goldschmidt/Simon Kallweit
881 * slipif.c/.h: bug #26397: SLIP polling support
883 2009-08-25 Simon Goldschmidt
884 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
885 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
887 2009-08-25 Simon Goldschmidt
888 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
890 2009-08-24 Jakob Stoklund Olesen
891 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
892 to netif_set_link_up().
894 2009-08-23 Simon Goldschmidt
895 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
896 to a human-readable string.
900 2009-12-24: Kieran Mansley
901 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
904 2009-12-06: Simon Goldschmidt
905 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
906 be statically allocated (like in ucip)
908 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
909 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
911 2009-12-03: Simon Goldschmidt
912 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
913 could have non-zero length
915 2009-12-02: Simon Goldschmidt
916 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
917 tcp_input_pcb until after calling the pcb's callbacks
919 2009-11-29: Simon Goldschmidt
920 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
921 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
923 2009-11-29: Simon Goldschmidt
924 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
925 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
927 2009-11-26: Simon Goldschmidt
928 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
931 2009-11-26: Simon Goldschmidt
932 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
933 algorithm at PCB level
935 2009-11-22: Simon Goldschmidt
936 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
938 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
939 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
940 reusing time-wait pcb
942 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
943 * sockets.c: Fixed bug #28062: Data received directly after accepting
944 does not wake up select
946 2009-11-11: Simon Goldschmidt
947 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
949 2009-10-30: Simon Goldschmidt
950 * opt.h: Increased default value for TCP_MSS to 536, updated default
951 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
953 2009-10-28: Kieran Mansley
954 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
955 to follow algorithm from TCP/IP Illustrated
957 2009-10-27: Kieran Mansley
958 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
960 2009-10-25: Simon Goldschmidt
961 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
962 pcb->recv is NULL to keep rcv_wnd correct)
964 2009-10-25: Simon Goldschmidt
965 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
967 2009-10-23: Simon Goldschmidt (David Empson)
968 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
970 2009-10-21: Simon Goldschmidt
971 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
972 trailing 1 byte len (SYN/FIN)
974 2009-10-21: Simon Goldschmidt
975 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
977 2009-10-19: Simon Goldschmidt
978 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
979 conditional code to assert where applicable), check pbuf length before
980 testing for valid reply
982 2009-10-19: Simon Goldschmidt
983 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
984 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
986 2009-10-16: Simon Goldschmidt
987 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
988 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
991 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
992 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
994 2009-10-15: Simon Goldschmidt
995 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
998 2009-10-15: Simon Goldschmidt
999 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1000 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1001 of network byte order
1003 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1004 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1005 which are not consecutive when retransmitting unacked segments
1007 2009-10-09 Simon Goldschmidt
1008 * opt.h: Fixed default values of some stats to only be enabled if used
1009 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1011 2009-08-30 Simon Goldschmidt
1012 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1013 function" by checking for loopback before calling ip_frag
1015 2009-08-25 Simon Goldschmidt
1016 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1018 2009-08-23 Simon Goldschmidt
1019 * ppp.c: bug #27078: Possible memory leak in pppInit()
1021 2009-08-23 Simon Goldschmidt
1022 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1025 2009-08-23 Simon Goldschmidt
1026 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1027 Fixed wrong parenthesis, added check in init.c
1029 2009-08-23 Simon Goldschmidt
1030 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1032 2009-08-23 Simon Goldschmidt
1033 * many ppp files: bug #27267: Added include to string.h where needed
1035 2009-08-23 Simon Goldschmidt
1036 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1043 2009-05-10 Simon Goldschmidt
1044 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1045 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1046 one pbuf to help MACs that don't support scatter-gather DMA.
1048 2009-05-09 Simon Goldschmidt
1049 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1050 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1052 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1053 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1054 extended info about the currently received packet.
1056 2009-04-27 Simon Goldschmidt
1057 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1059 2009-04-25 Simon Goldschmidt
1060 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1061 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1063 2009-04-21 Simon Goldschmidt
1064 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1065 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1066 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1067 as an external function for lookup.
1069 2009-04-15 Simon Goldschmidt
1070 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1072 2009-03-31 Kieran Mansley
1073 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1074 TCP timestamp options, off by default. Rework tcp_enqueue() to
1075 take option flags rather than specified option data
1077 2009-02-18 Simon Goldschmidt
1078 * cc.h: Added printf formatter for size_t: SZT_F
1080 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1081 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1084 2009-02-12 Simon Goldschmidt
1085 * init.h: Added LWIP_VERSION to get the current version of the stack
1087 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1088 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1089 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1092 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1093 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1094 is only used by UDPLITE at present, so conditionalise it.
1096 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1097 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1098 "seed" address. This should reduce AUTOIP conflicts if
1099 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1101 2008-10-02 Jonathan Larmour and Rishi Khan
1102 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1105 2008-06-30 Simon Goldschmidt
1106 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1107 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1108 mem_free to run between mem_malloc iterations. Added illegal counter for
1111 2008-06-27 Simon Goldschmidt
1112 * stats.h/.c, some other files: patch #6483: stats module improvement:
1113 Added defines to display each module's statistic individually, added stats
1114 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1116 2008-06-17 Simon Goldschmidt
1117 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1118 (define LWIP_ERR_T in cc.h)
1120 2008-06-17 Simon Goldschmidt
1121 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1124 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1125 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1126 modified version of patch # 6370: Moved loopif code to netif.c so that
1127 loopback traffic is supported on all netifs (all local IPs).
1128 Added option to limit loopback packets for each netifs.
1132 2009-08-12 Kieran Mansley
1133 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1134 out of window or out of order properly
1136 2009-08-12 Kieran Mansley
1137 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1139 2009-07-28 Simon Goldschmidt
1140 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1142 2009-07-27 Kieran Mansley
1143 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1145 2009-07-09 Kieran Mansley
1146 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1147 recv_avail and don't increment counters until message successfully
1150 2009-06-25 Kieran Mansley
1151 * api_msg.c api.h: BUG26722: initialise netconn write variables
1154 2009-06-25 Kieran Mansley
1155 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1157 2009-06-25 Kieran Mansley
1158 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1159 simultaneous close behaviour, and make snd_nxt have the same meaning
1162 2009-05-12 Simon Goldschmidt
1163 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1164 arp_table / uses etharp_query" by adding etharp_gratuitous()
1166 2009-05-12 Simon Goldschmidt
1167 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1168 to the IP header (used by igmp_ip_output_if)
1170 2009-05-06 Simon Goldschmidt
1171 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1172 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1174 2009-05-05 Simon Goldschmidt
1175 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1178 2009-05-04 Simon Goldschmidt
1179 * init.c: snmp was not initialized in lwip_init()
1181 2009-05-04 Frédéric Bernon
1182 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1184 2009-05-03 Simon Goldschmidt
1185 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1186 (and unsent->next == NULL)
1188 2009-05-02 Simon Goldschmidt
1189 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1190 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1192 2009-05-02 Simon Goldschmidt
1193 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1195 2009-05-01 Simon Goldschmidt
1196 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1198 2009-05-01 Simon Goldschmidt
1199 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1201 2009-04-29 Frédéric Bernon
1202 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1203 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1204 of broadcast packets even when this option wasn't set. Port maintainers
1205 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1206 If you want this option also filter broadcast on recv operations, you also
1207 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1209 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1210 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1211 DHCP/AUTOIP cooperation
1213 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1214 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1215 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1216 right place in tcp_output and tcp_rexmit).
1218 2009-04-25 Simon Goldschmidt
1219 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1220 when debugging": memp_sizes contained the wrong sizes (including sanity
1221 regions); memp pools for MEM_USE_POOLS were too small
1223 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1224 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1225 behavior, with with ip address string not ended by a '\0', a space or a
1228 2009-04-19 Simon Goldschmidt
1229 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1230 pcb->err is called, not pcb->connected (with an error code).
1232 2009-04-19 Simon Goldschmidt
1233 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1234 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1236 2009-04-19 Simon Goldschmidt
1237 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1238 in the header pbuf, not the data pbuf)
1240 2009-04-18 Simon Goldschmidt
1241 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1243 2009-04-15 Simon Goldschmidt
1244 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1246 2009-04-15 Simon Goldschmidt
1247 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1249 2009-04-15 Simon Goldschmidt
1250 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1251 ip_hinted_output() (for smaller code mainly)
1253 2009-04-15 Simon Goldschmidt
1254 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1256 2009-04-15 Simon Goldschmidt
1257 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1258 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1259 is big enough in dhcp_start
1261 2009-04-15 Simon Goldschmidt
1262 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1264 2009-04-15 Simon Goldschmidt
1265 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1267 2009-04-15 Simon Goldschmidt
1268 * sockets.c: bug #26121: set_errno can be overridden
1270 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1271 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1274 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1275 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1278 2009-03-31 Kieran Mansley
1279 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1280 updates are calculated and sent (BUG20515)
1282 * tcp_in.c: cope with SYN packets received during established states,
1283 and retransmission of initial SYN.
1285 * tcp_out.c: set push bit correctly when tcp segments are merged
1287 2009-03-27 Kieran Mansley
1288 * tcp_out.c set window correctly on probes (correcting change made
1291 2009-03-26 Kieran Mansley
1292 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1293 connections where no reset required (bug #25622)
1295 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1298 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1299 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1300 too small depending on MEM_ALIGNMENT
1302 2009-02-16 Simon Goldschmidt
1303 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1304 converted size argument of netconn_write to 'size_t'
1306 2009-02-16 Simon Goldschmidt
1307 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1308 by moving accept callback function pointer to TCP_PCB_COMMON
1310 2009-02-12 Simon Goldschmidt
1311 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1314 2009-02-11 Simon Goldschmidt
1315 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1317 2009-02-11 Simon Goldschmidt
1318 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1319 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1321 2009-02-10 Simon Goldschmidt
1322 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1323 Accepts_pending is decrease on a corresponding listen pcb when a connection
1324 in state SYN_RCVD is close.
1326 2009-01-28 Jonathan Larmour
1327 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1330 2008-12-19 Simon Goldschmidt
1331 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1333 2008-12-10 Tamas Somogyi, Frédéric Bernon
1334 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1335 port uses deleted netbuf.
1337 2008-10-18 Simon Goldschmidt
1338 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1341 2008-10-15 Simon Goldschmidt
1342 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1343 by packing the struct ip_reass_helper.
1345 2008-10-03 David Woodhouse, Jonathan Larmour
1346 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1348 2008-10-02 Jonathan Larmour
1349 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1350 padding is included.
1352 2008-09-30 Jonathan Larmour
1353 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1354 assertion check that addrlen isn't NULL.
1356 2008-09-30 Jonathan Larmour
1357 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1359 2008-08-26 Simon Goldschmidt
1360 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1361 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1363 2008-08-14 Simon Goldschmidt
1364 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1365 tcp_close returns != ERR_OK)
1367 2008-07-08 Frédéric Bernon
1368 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1369 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1371 2008-06-24 Jonathan Larmour
1372 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1373 if tcp_seg_copy fails.
1375 2008-06-17 Simon Goldschmidt
1376 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1377 and created defines for swapping bytes and folding u32 to u16.
1379 2008-05-30 Kieran Mansley
1380 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1381 rather than rcv_ann_wnd when deciding if packets are in-window.
1382 Contributed by <arasmussen@consultant.datasys.swri.edu>
1384 2008-05-30 Kieran Mansley
1385 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1386 passing as function pointers when MEM_LIBC_MALLOC is defined.
1388 2008-05-09 Jonathan Larmour
1389 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1390 stop it being treated as a fatal error.
1392 2008-04-15 Simon Goldschmidt
1393 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1396 2008-03-27 Simon Goldschmidt
1397 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1398 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1399 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1400 or heap memory from interrupt context
1402 2008-03-26 Simon Goldschmidt
1403 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1404 host sent a zero mss as TCP option.
1411 2008-03-10 Jonathan Larmour
1412 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1413 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1415 2008-01-22 Frédéric Bernon
1416 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1417 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1419 2008-01-14 Frédéric Bernon
1420 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1421 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1422 tcp_recv callback (see rawapi.txt).
1424 2008-01-14 Frédéric Bernon, Marc Chaland
1425 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1427 2008-01-12 Frédéric Bernon
1428 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1429 netconn::sem per netconn::op_completed like suggested for the task #7490
1430 "Add return value to sys_mbox_post".
1432 2008-01-12 Frédéric Bernon
1433 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1434 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1435 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1437 2008-01-10 Frédéric Bernon
1438 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1439 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1440 "blocking" ("block" parameter = 1).
1442 2008-01-10 Frédéric Bernon
1443 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1444 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1445 "Add return value to sys_mbox_post".
1447 2008-01-05 Frédéric Bernon
1448 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1449 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1450 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1451 indicate the number of pointers query by the mailbox. There is three defines
1452 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1453 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1454 parameter in your implementation, but to ignore it to keep the previous behavior.
1455 The new sys_mbox_trypost function return a value to know if the mailbox is
1456 full or if the message is posted. Take a look to sys_arch.txt for more details.
1457 This new function is used in tcpip_input (so, can be called in an interrupt
1458 context since the function is not blocking), and in recv_udp and recv_raw.
1460 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1461 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1462 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1463 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1464 documentation in the rawapi.txt file.
1466 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1467 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1469 2007-12-31 Frédéric Bernon, Luca Ceresoli
1470 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1471 in autoip". The change in etharp_raw could be removed, since all calls to
1472 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1473 wrong in the future.
1475 2007-12-30 Frédéric Bernon, Tom Evans
1476 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1477 Filtering" reported by Tom Evans.
1479 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1480 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1481 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1482 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1483 keep accepting new connections.
1485 2007-12-13 Frédéric Bernon
1486 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1487 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1489 2007-12-12 Frédéric Bernon
1490 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1491 are the one which have ram usage.
1493 2007-12-05 Frédéric Bernon
1494 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1495 set of variables (=0) or a local one (=1). In this last case, your port should
1496 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1497 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1499 2007-12-03 Simon Goldschmidt
1500 * ip.c: ip_input: check if a packet is for inp first before checking all other
1501 netifs on netif_list (speeds up packet receiving in most cases)
1503 2007-11-30 Simon Goldschmidt
1504 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1505 UDP: move a (connected) pcb selected for input to the front of the list of
1506 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1509 2007-11-28 Simon Goldschmidt
1510 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1512 2007-11-25 Simon Goldschmidt
1513 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1516 2007-11-24 Simon Goldschmidt
1517 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1518 to the new file netdb.c; included lwip_getaddrinfo.
1520 2007-11-21 Simon Goldschmidt
1521 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1522 based on the MTU of the netif used to send. Enabled by default. Disable by
1523 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1525 2007-11-19 Frédéric Bernon
1526 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1527 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1528 copy dns payload to parse the response), return an error if there is no place
1529 for a new query, and fix some minor problems.
1531 2007-11-16 Simon Goldschmidt
1532 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1533 removed files: core/inet.c, core/inet6.c
1534 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1535 inet and chksum part; changed includes in all lwIP files as appropriate
1537 2007-11-16 Simon Goldschmidt
1538 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1539 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1540 (gethostbyname/gethostbyname_r).
1542 2007-11-15 Jim Pettinato, Frédéric Bernon
1543 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1544 requests with RAW api interface. Initialization is done in lwip_init() with
1545 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1546 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1547 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1548 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1549 list with points to improve.
1551 2007-11-06 Simon Goldschmidt
1552 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1553 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1554 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1556 2007-11-06 Simon Goldschmidt
1557 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1558 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1559 implementation from netconn api applications.
1561 2007-11-03 Frédéric Bernon
1562 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1563 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1564 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1565 it. This is a first release which have to be improve for TCP. Note it used the
1566 netconn::recv_avail which need to be more "thread-safe" (note there is already
1567 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1569 2007-11-01 Frédéric Bernon, Marc Chaland
1570 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1571 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1572 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1573 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1574 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1576 2007-10-24 Frédéric Bernon
1577 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1578 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1579 some code (like we have talk in "patch #5919 : Create compile switch to remove
1580 select code"), but it could be done later.
1582 2007-10-08 Simon Goldschmidt
1583 * many files: Changed initialization: many init functions are not needed any
1584 more since we now rely on the compiler initializing global and static
1587 2007-10-06 Simon Goldschmidt
1588 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1589 to enqueue the received pbufs so that multiple packets can be reassembled
1590 simultaneously and no static reassembly buffer is needed.
1592 2007-10-05 Simon Goldschmidt
1593 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1594 all netifs (or ports) can use it.
1596 2007-10-05 Frédéric Bernon
1597 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1598 common function to reduce a little bit the footprint (for all functions using
1599 only the "netif" parameter).
1601 2007-10-03 Frédéric Bernon
1602 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1603 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1604 a little bit the footprint (for all functions using only the "netif" parameter).
1606 2007-09-15 Frédéric Bernon
1607 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1608 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1609 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1610 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1612 2007-09-10 Frédéric Bernon
1613 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1614 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1615 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1616 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1617 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1618 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1619 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1620 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1621 when it's queried (any direct call to "sysuptime" is changed by a call to
1622 snmp_get_sysuptime).
1624 2007-09-09 Frédéric Bernon, Bill Florac
1625 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1626 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1627 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1628 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1629 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1630 the next query message to receive the matching multicast streams).
1632 2007-09-08 Frédéric Bernon
1633 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1634 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1635 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1636 Enable to access to these fields with LWIP_TCP=0.
1638 2007-09-05 Frédéric Bernon
1639 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1640 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1641 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1642 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1643 help to reduce footprint, and to reduce "visibility" on the Internet.
1645 2007-09-05 Frédéric Bernon, Bill Florac
1646 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1647 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1648 parameters have to be provided: a task name, and a task stack size. For this
1649 one, since it's platform dependant, you could define the best one for you in
1650 your lwipopts.h. For port maintainers, you can just add these new parameters
1651 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1654 2007-09-05 Frédéric Bernon
1655 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1656 inside init.c for task #7142 "Sanity check user-configurable values".
1658 2007-09-04 Frédéric Bernon, Bill Florac
1659 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1660 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1661 value). It will avoid potential fragmentation problems, use a counter to know
1662 how many times a group is used on an netif, and free it when all applications
1663 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1664 check if LWIP_IGMP!=0).
1666 2007-09-03 Frédéric Bernon
1667 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1668 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1669 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1670 and/or the "interface" field (for netconn layer), for join/leave operations.
1671 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1672 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1674 2007-08-30 Frédéric Bernon
1675 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1676 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1677 with other API (application based on raw API, or future "socket2" API). Ports
1678 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1680 2007-08-30 Frédéric Bernon, Jonathan Larmour
1681 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1682 user-configurable values".
1684 2007-08-29 Frédéric Bernon
1685 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1686 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1687 spirit than the others modules. Modify some IGMP debug traces.
1689 2007-08-29 Frédéric Bernon
1690 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1691 Add lwip_init function to regroup all modules initializations, and to provide
1692 a place to add code for task #7142 "Sanity check user-configurable values".
1693 Ports maintainers should remove direct initializations calls from their code,
1694 and add init.c in their makefiles. Note that lwip_init() function is called
1695 inside tcpip_init, but can also be used by raw api users since all calls are
1696 disabled when matching options are disabled. Also note that their is new options
1697 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1699 2007-08-26 Marc Boucher
1700 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1701 since they can under certain circumstances be called with an invalid conn
1702 pointer after the connection has been closed (and conn has been freed).
1704 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1705 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1706 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1708 2007-08-22 Frédéric Bernon
1709 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1710 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1712 2007-08-22 Frédéric Bernon
1713 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1714 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1715 name is tcpip_input (we keep the name of 1.2.0 function).
1717 2007-08-17 Jared Grubb
1718 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1719 settings into new memp_std.h and optional user file lwippools.h. This adds
1720 more dynamic mempools, and allows the user to create an arbitrary number of
1721 mempools for mem_malloc.
1723 2007-08-16 Marc Boucher
1724 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1725 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1726 close the connection.
1728 2007-08-16 Marc Boucher
1729 * sockets.c: lwip_accept(): check netconn_peer() error return.
1731 2007-08-16 Marc Boucher
1732 * mem.c, mem.h: Added mem_calloc().
1734 2007-08-16 Marc Boucher
1735 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1736 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1737 and starving other message types.
1738 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1740 2007-08-16 Marc Boucher
1741 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1742 type and flgs (later renamed to flags).
1743 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1744 Improved lwip_recvfrom(). TCP push now propagated.
1746 2007-08-16 Marc Boucher
1747 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1750 2007-08-16 Marc Boucher
1751 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1752 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1753 Added PPPoE support and various PPP improvements.
1755 2007-07-25 Simon Goldschmidt
1756 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1757 making netbuf_copy_partial use this function.
1759 2007-07-25 Simon Goldschmidt
1760 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1761 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1764 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1765 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1766 a link callback in the netif struct, and functions to handle it. Be carefull
1767 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1768 if you want to be sure to be compatible with future changes...
1770 2007-06-30 Frédéric Bernon
1771 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1773 2007-06-21 Simon Goldschmidt
1774 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1775 LWIP_AUTOIP =0 and =1 to remove redundant code.
1777 2007-06-21 Simon Goldschmidt
1778 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1779 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1780 heap. This both prevents memory fragmentation and gives a higher speed
1781 at the cost of more memory consumption. Turned off by default.
1783 2007-06-21 Simon Goldschmidt
1784 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1785 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1786 int to be able to send a bigger buffer than 64K with one time (mainly
1787 used from lwip_send).
1789 2007-06-21 Simon Goldschmidt
1790 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1791 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1793 2007-06-21 Simon Goldschmidt
1794 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1795 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1796 changes on low memory or empty send-buffer.
1798 2007-06-18 Simon Goldschmidt
1799 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1800 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1801 used for ethernet and struct eth_addr already had a defined length of 6).
1803 2007-06-17 Simon Goldschmidt
1804 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1805 to disable UDP checksum generation on transmit.
1807 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1808 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1809 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1810 this macro to check "conn" parameter in api_msg.c functions.
1812 2007-06-11 Simon Goldschmidt
1813 * sockets.c, sockets.h: Added UDP lite support for sockets
1815 2007-06-10 Simon Goldschmidt
1816 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1817 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1820 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1821 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1822 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1823 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1824 (see TODO mark in the source code).
1826 2007-06-09 Simon Goldschmidt
1827 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1828 etharp_output() to match netif->output so etharp_output() can be used
1829 directly as netif->output to save one function call.
1831 2007-06-08 Simon Goldschmidt
1832 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1833 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1834 added initialization of those to ethernetif, slipif and loopif.
1836 2007-05-18 Simon Goldschmidt
1837 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1838 (defaulting to off for now) that can be set to 0 to send fragmented
1839 packets by passing PBUF_REFs down the stack.
1841 2007-05-23 Frédéric Bernon
1842 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1843 connections, such present in patch #5959.
1845 2007-05-23 Frédéric Bernon
1846 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1847 code in only one part...
1849 2007-05-18 Simon Goldschmidt
1850 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1851 elements to overflow. This is achieved by adding some bytes before and after
1852 each pool element (increasing their size, of course), filling them with a
1853 prominent value and checking them on freeing the element.
1854 Set it to 2 to also check every element in every pool each time memp_malloc()
1855 or memp_free() is called (slower but more helpful).
1857 2007-05-10 Simon Goldschmidt
1858 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1859 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1862 2007-05-11 Frédéric Bernon
1863 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1864 Include a function pointer instead of a table index in the message to reduce
1865 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1866 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1868 2007-05-10 Simon Goldschmidt
1869 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1870 \ extern "C" {' in all header files. Now you can write your application using
1871 the lwIP stack in C++ and simply #include the core files. Note I have left
1872 out the netif/ppp/*h header files for now, since I don't know which files are
1873 included by applications and which are for internal use only.
1875 2007-05-09 Simon Goldschmidt
1876 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1877 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1878 situations where some compilers might inline the copy and save a function
1879 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1881 2007-05-08 Simon Goldschmidt
1882 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1883 to be overriden in case the C-library malloc implementation is not protected
1884 against concurrent access.
1886 2007-05-04 Simon Goldschmidt (Atte Kojo)
1887 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1888 multiple packets to the same host.
1890 2007-05-04 Frédéric Bernon, Jonathan Larmour
1891 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1892 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1893 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1894 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1895 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1896 these fields are now renamed "addr" & "port".
1898 2007-04-11 Jonathan Larmour
1899 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1900 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1901 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1902 by the port in sys_arch.h if desired.
1904 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1905 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1906 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1907 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1909 2007-04-05 Frédéric Bernon
1910 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1912 2007-04-04 Simon Goldschmidt
1913 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1914 use this for and architecture-independent form to tell the compiler you intentionally
1915 are not using this variable. Can be overriden in cc.h.
1917 2007-03-28 Frédéric Bernon
1918 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1919 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1920 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1921 It will be used by DHCP to register a client hostname, but can also be use when you call
1924 2007-03-28 Frédéric Bernon
1925 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1926 initialize a network interface's flag with. It tell this interface is an ethernet
1927 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1928 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1930 2007-03-26 Frédéric Bernon, Jonathan Larmour
1931 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1932 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1933 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1934 is done in tcpip_init function.
1936 2007-03-22 Frédéric Bernon
1937 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1938 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1939 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1940 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1941 but never used. Fix msg_in.c with the correct #if test for a stat display.
1943 2007-03-21 Kieran Mansley
1944 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1945 Provides callback on netif up/down state change.
1947 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1948 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1949 ip.c, netif.h, tcpip.c, opt.h:
1950 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1951 filter per all network interfaces. Declare a new function in netif to enable to
1952 control the MAC filter (to reduce lwIP traffic processing).
1954 2007-03-11 Frédéric Bernon
1955 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1956 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1957 unless you know what you're doing (default are RFC1122 compliant). Note
1958 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1960 2007-03-08 Frédéric Bernon
1961 * tcp.h: Keepalive values can be configured at compile time, but don't change
1962 this unless you know what you're doing (default are RFC1122 compliant).
1964 2007-03-08 Frédéric Bernon
1965 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1966 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1967 on UDP sockets/netconn.
1969 2007-03-08 Simon Goldschmidt
1970 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1972 2007-03-06 Frédéric Bernon
1973 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1974 Implement SO_RCVTIMEO on UDP sockets/netconn.
1976 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1977 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1978 on the stack and remove the API msg type from memp
1980 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1981 * sockets.h, sockets.c: Move socket initialization to new
1982 lwip_socket_init() function.
1983 NOTE: this changes the API with ports. Ports will have to be
1984 updated to call lwip_socket_init() now.
1986 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1987 * api_lib.c: Use memcpy in netbuf_copy_partial.
1992 2008-03-17 Frédéric Bernon, Ed Kerekes
1993 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1994 some problems to fill the IP header on some targets, use now the
1995 ip.h macros to do it).
1997 2008-03-13 Frédéric Bernon
1998 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1999 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2000 TCP connection caused a crash. Note that using (lwip_)recvfrom
2001 like this is a bit slow and that using (lwip)getpeername is the
2002 good lwip way to do it (so, using recv is faster on tcp sockets).
2004 2008-03-12 Frédéric Bernon, Jonathan Larmour
2005 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2006 recv_raw() does not consume data", and the ping sample (with
2007 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2008 returned the IP payload, without the IP header).
2010 2008-03-04 Jonathan Larmour
2011 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2012 and/or warnings on some systems where mem_size_t and size_t differ.
2013 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2015 2008-03-04 Kieran Mansley (contributions by others)
2016 * Numerous small compiler error/warning fixes from contributions to
2017 mailing list after 1.3.0 release candidate made.
2019 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2020 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2022 2008-01-15 Kieran Mansley
2023 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2024 prevented from sending by a small send window, not just a zero
2027 2008-01-09 Jonathan Larmour
2028 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2029 conflict with Linux system headers.
2031 2008-01-06 Jonathan Larmour
2032 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2033 address entirely on receiving a DHCPNAK, and restarting discovery.
2035 2007-12-21 Simon Goldschmidt
2036 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2037 is not protected" by using new macros for interlocked access to modify/test
2038 netconn->recv_avail.
2040 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2041 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2043 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2044 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2045 of silly window avoidance and prevent lwIP from shrinking the window)
2047 2007-12-04 Simon Goldschmidt
2048 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2049 data packet was lost): add assert that all segment lists are empty in
2050 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2051 state from LAST_ACK in tcp_process
2053 2007-12-02 Simon Goldschmidt
2054 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2055 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2056 has to be set to 0 in lwipopts.h
2058 2007-12-02 Simon Goldschmidt
2059 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2060 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2061 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2062 This is a fix for thread-safety and allocates all items needed for a netconn
2063 when the netconn is created.
2065 2007-11-30 Simon Goldschmidt
2066 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2067 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2068 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2069 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2071 2007-11-27 Simon Goldschmidt
2072 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2073 letting ip_route only use netifs that are up.
2075 2007-11-27 Simon Goldschmidt
2076 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2077 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2078 sockets block most operations once they have seen a fatal error.
2080 2007-11-27 Simon Goldschmidt
2081 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2082 netif to send as an argument (to be able to send on netifs that are down).
2084 2007-11-26 Simon Goldschmidt
2085 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2088 2007-11-21 Simon Goldschmidt
2089 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2090 Fixed the nagle algorithm; nagle now also works for all raw API applications
2091 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2093 2007-11-12 Frédéric Bernon
2094 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2095 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2096 context in do_getaddr.
2098 2007-11-10 Simon Goldschmidt
2099 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2100 happen any time). Now the packet simply isn't enqueued when out of memory.
2102 2007-11-01 Simon Goldschmidt
2103 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2104 TCP_MSS if that is smaller) as long as no MSS option is received from the
2107 2007-11-01 Simon Goldschmidt
2108 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2109 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2110 sending our configured TCP_MSS instead of the one received).
2112 2007-11-01 Simon Goldschmidt
2113 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2114 calculated based on the configured TCP_MSS, not on the MSS option received
2117 2007-10-09 Simon Goldschmidt
2118 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2119 short and also was generated wrong if checksum coverage != tot_len;
2120 receive: checksum was calculated wrong if checksum coverage != tot_len
2122 2007-10-08 Simon Goldschmidt
2123 * mem.c: lfree was not updated in mem_realloc!
2125 2007-10-07 Frédéric Bernon
2126 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2127 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2128 this change cause an API breakage for netconn_addr, since a parameter
2129 type change. Any compiler should cause an error without any changes in
2130 yours netconn_peer calls (so, it can't be a "silent change"). It also
2131 reduce a little bit the footprint for socket layer (lwip_getpeername &
2132 lwip_getsockname use now a common lwip_getaddrname function since
2133 netconn_peer & netconn_addr have the same parameters).
2135 2007-09-20 Simon Goldschmidt
2136 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2137 by checking tcp_tw_pcbs also
2139 2007-09-19 Simon Goldschmidt
2140 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2142 2007-09-15 Mike Kleshov
2143 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2145 2007-09-06 Frédéric Bernon
2146 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2147 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2148 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2149 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2151 2007-08-30 Frédéric Bernon
2152 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2153 and fix some coding style.
2155 2007-08-28 Frédéric Bernon
2156 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2157 kind of packets. These packets are considered like Ethernet packets (payload
2158 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2159 are considered like IP packets (payload pointing to iphdr).
2161 2007-08-27 Frédéric Bernon
2162 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2163 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2164 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2166 2007-08-24 Kieran Mansley
2167 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2168 compiler (Paradigm C++)
2170 2007-08-09 Frédéric Bernon, Bill Florac
2171 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2172 Introduce IGMP_STATS to centralize statistics management.
2174 2007-08-09 Frédéric Bernon, Bill Florac
2175 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2176 packet on a udp pcb binded on an netif's IP address, and not on "any".
2178 2007-08-09 Frédéric Bernon, Bill Florac
2179 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2180 This is mainly on using lookup/lookfor, and some coding styles...
2182 2007-07-26 Frédéric Bernon (and "thedoctor")
2183 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2185 2007-07-25 Simon Goldschmidt
2186 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2187 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2188 (tcp_output is called again later from tcp timers).
2190 2007-07-25 Simon Goldschmidt
2191 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2192 copy_from_pbuf, which illegally modified the given pbuf.
2194 2007-07-25 Simon Goldschmidt
2195 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2196 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2198 2007-07-24 Simon Goldschmidt
2199 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2200 correct state (must be CLOSED).
2202 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2203 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2204 allocation. It now returns NULL.
2206 2007-07-13 Frédéric Bernon
2207 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2210 2007-07-13 Frédéric Bernon
2211 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2212 because current code doesn't follow rawapi.txt documentation.
2214 2007-07-13 Kieran Mansley
2215 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2216 out of sequence processing of received packets
2218 2007-07-03 Simon Goldschmidt
2219 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2220 assumption is made that this pbuf is in one piece (i.e. not chained). These
2221 assumptions clash with the possibility of converting to fully pool-based
2222 pbuf implementations, where PBUF_RAM pbufs might be chained.
2224 2007-07-03 Simon Goldschmidt
2225 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2226 when closing tcp netconns: removed conn->sem, less context switches when
2227 closing, both netconn_close and netconn_delete should safely close tcp
2230 2007-07-02 Simon Goldschmidt
2231 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2232 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2233 to cache ARP table indices with each pcb instead of single-entry cache for
2236 2007-07-02 Simon Goldschmidt
2237 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2238 warnings when assigning to smaller types.
2240 2007-06-28 Simon Goldschmidt
2241 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2243 2007-06-28 Simon Goldschmidt
2244 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2245 a segment contained chained pbufs)
2247 2007-06-28 Frédéric Bernon
2248 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2249 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2250 possible to define this macro in your own lwipopts.h to always use C library's
2251 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2253 2007-06-28 Frédéric Bernon
2254 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2255 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2256 in api_lib/api_msg (use pointers and not type with table, etc...)
2258 2007-06-26 Simon Goldschmidt
2259 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2261 2007-06-25 Simon Goldschmidt
2262 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2263 for udp packets with no matching pcb.
2265 2007-06-25 Simon Goldschmidt
2266 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2267 could get udp input packets if the remote side matched.
2269 2007-06-13 Simon Goldschmidt
2270 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2271 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2273 2007-06-13 Simon Goldschmidt
2274 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2275 -> netconn_new_..() does not allocate a new connection for unsupported
2278 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2279 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2280 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2282 2007-06-13 Frédéric Bernon, Matthias Weisser
2283 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2284 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2285 some macro names collision with some OS macros.
2287 2007-06-11 Simon Goldschmidt
2288 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2289 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2290 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2293 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2294 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2295 where TCP flags wasn't initialized in tcp_keepalive.
2297 2007-06-03 Simon Goldschmidt
2298 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2299 registered, p->payload was modified without modifying p->len if sending
2300 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2302 2007-06-03 Simon Goldschmidt
2303 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2304 re-used the input pbuf even if that didn't have enough space to include the
2305 link headers. Now the space is tested and a new pbuf is allocated for the
2306 echo response packet if the echo request pbuf isn't big enough.
2308 2007-06-01 Simon Goldschmidt
2309 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2311 2007-05-23 Frédéric Bernon
2312 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2313 allocated by do_listen if success) and netconn_accept errors handling. In
2314 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2315 by ASSERT, except for netconn_delete.
2317 2007-05-23 Frédéric Bernon
2318 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2319 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2320 directly close the recvmbox).
2322 2007-05-22 Simon Goldschmidt
2323 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2324 bound but unconnected (and non-listening) tcp_pcbs.
2326 2007-05-22 Frédéric Bernon
2327 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2328 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2329 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2330 like "sys_timeout" in their application threads.
2332 2007-05-22 Frédéric Bernon
2333 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2334 which parameters are used by which do_xxx function, and to avoid "misusing"
2335 parameters (patch #5938).
2337 2007-05-22 Simon Goldschmidt
2338 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2339 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2340 is only 8 bits wide. This affects the api, as there, the protocol was
2343 2007-05-18 Simon Goldschmidt
2344 * memp.c: addition to patch #5913: smaller pointer was returned but
2345 memp_memory was the same size -> did not save memory.
2347 2007-05-16 Simon Goldschmidt
2348 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2351 2007-05-16 Simon Goldschmidt
2352 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2353 as the one of the netif used for sending to prevent sending from old
2354 addresses after a netif address gets changed (partly fixes bug #3168).
2356 2007-05-16 Frédéric Bernon
2357 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2358 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2359 tcpip_init) because we have to be sure that network interfaces are already
2360 added (mac filter is updated only in igmp_init for the moment).
2362 2007-05-16 Simon Goldschmidt
2363 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2364 into sys_arch_sem_wait calls to prevent timers from running while waiting
2365 for the heap. This fixes bug #19167.
2367 2007-05-13 Simon Goldschmidt
2368 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2369 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2372 2007-05-07 Simon Goldschmidt
2373 * mem.c: Another attempt to fix bug #17922.
2375 2007-05-04 Simon Goldschmidt
2376 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2377 implementation so that it can be reused (don't allocate the target
2378 pbuf inside pbuf_copy()).
2380 2007-05-04 Simon Goldschmidt
2381 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2382 to save a little RAM (next pointer of memp is not used while not in pool).
2385 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2388 2007-04-23 Simon Goldschmidt
2389 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2390 in NULL reference for incoming TCP packets". Loopif has to be configured
2391 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2392 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2393 putting packets on a list that is fed to the stack by calling loopif_poll()
2394 (single-thread / NO_SYS / polling environment where e.g.
2395 netif->input() = ip_input).
2397 2007-04-17 Jonathan Larmour
2398 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2399 the difference between two u16_t's.
2400 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2401 MEMP_NUM_NETCONN in sockets.c right now.
2403 2007-04-12 Jonathan Larmour
2404 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2406 2007-04-12 Kieran Mansley
2407 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2408 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2410 2007-04-11 Simon Goldschmidt
2411 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2412 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2413 pbuf.c: removed functions no needed any more (by etharp).
2415 2007-04-11 Kieran Mansley
2416 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2417 "Constant is long" warnings with 16bit compilers. Contributed by
2418 avatar@mmlab.cse.yzu.edu.tw
2420 2007-04-05 Frédéric Bernon, Jonathan Larmour
2421 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2422 the mailbox is active". Now, the post is only done during a connect, and do_send,
2423 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2425 2007-04-03 Frédéric Bernon
2426 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2427 packets. See patch #5834.
2429 2007-03-30 Frédéric Bernon
2430 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2431 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2433 2007-03-30 Frédéric Bernon
2434 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2435 others environment defines (these were too "generic").
2437 2007-03-28 Frédéric Bernon
2438 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2439 result and can cause a crash. lwip_send now check netbuf_ref result.
2441 2007-03-28 Simon Goldschmidt
2442 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2443 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2444 defined. This is the way it should have been already (looking at
2447 2007-03-28 Kieran Mansley
2448 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2449 IP and TCP headers *and* physical link headers
2451 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2452 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2453 to send some garbage. It is not a definitive solution, but the patch does solve
2454 the problem for most cases.
2456 2007-03-22 Frédéric Bernon
2457 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2459 2007-03-22 Frédéric Bernon
2460 * api_lib.c: somes resources couldn't be freed if there was errors during
2461 netconn_new_with_proto_and_callback.
2463 2007-03-22 Frédéric Bernon
2464 * ethernetif.c: update netif->input calls to check return value. In older ports,
2465 it's a good idea to upgrade them, even if before, there could be another problem
2466 (access to an uninitialized mailbox).
2468 2007-03-21 Simon Goldschmidt
2469 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2470 by casting to unsigned).
2472 2007-03-21 Frédéric Bernon
2473 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2474 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2475 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2476 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2477 faster and more reliable communication between api_lib and tcpip.
2479 2007-03-21 Frédéric Bernon
2480 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2482 2007-03-21 Frédéric Bernon
2483 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2485 2007-03-21 Kieran Mansley
2486 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2489 2007-03-21 Kieran Mansley
2490 * Fix all uses of pbuf_header to check the return value. In some
2491 cases just assert if it fails as I'm not sure how to fix them, but
2492 this is no worse than before when they would carry on regardless
2495 2007-03-21 Kieran Mansley
2496 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2497 comment out missing header include in icmp.c
2499 2007-03-20 Frédéric Bernon
2500 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2501 synchronized with memp.h.
2503 2007-03-20 Frédéric Bernon
2504 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2505 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2506 network interfaces. Also fix a compiler warning.
2508 2007-03-20 Kieran Mansley
2509 * udp.c: Only try and use pbuf_header() to make space for headers if
2510 not a ROM or REF pbuf.
2512 2007-03-19 Frédéric Bernon
2513 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2516 2007-03-19 Frédéric Bernon
2517 * Remove unimplemented "memp_realloc" function from memp.h.
2519 2007-03-11 Simon Goldschmidt
2520 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2523 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2524 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2525 (missing `const' qualifier in socket functions), to get more compatible to
2526 standard POSIX sockets.
2528 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2529 * sockets.c: Add asserts inside bind, connect and sendto to check input
2530 parameters. Remove excessive set_errno() calls after get_socket(), because
2531 errno is set inside of get_socket(). Move last sock_set_errno() inside
2534 2007-03-09 Simon Goldschmidt
2535 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2536 was allocated too small.
2538 2007-03-06 Simon Goldschmidt
2539 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2540 the stack from concurrent access.
2542 2007-03-06 Frédéric Bernon, Dmitry Potapov
2543 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2544 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2546 2007-03-06 Simon Goldschmidt
2547 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2548 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2550 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2551 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2552 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2553 Allow to do ARP processing for incoming packets inside tcpip_thread
2554 (protecting ARP layer against concurrent access). You can also disable
2555 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2556 Older ports have to use tcpip_ethinput.
2558 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2559 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2560 from pointer target type"
2562 2007-03-05 Frédéric Bernon
2563 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2564 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2566 2007-03-04 Frédéric Bernon
2567 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2570 2007-03-04 Frédéric Bernon
2571 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2573 The api_msg struct stay on the stack (not moved to netconn struct).
2575 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2576 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2577 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2578 Also fixed cast warning in pbuf_alloc()
2580 2007-03-04 Simon Goldschmidt
2581 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2582 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2584 2007-03-03 Frédéric Bernon
2585 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2586 It is static, and never used in udp.c except udp_init().
2588 2007-03-02 Simon Goldschmidt
2589 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2590 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2591 initialized before tcpip_thread is running (e.g. before OS is started)
2593 2007-03-02 Frédéric Bernon
2594 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2597 2007-02-28 Kieran Mansley
2598 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2599 outside the region of the pbuf by pbuf_header()
2601 2007-02-28 Kieran Mansley
2602 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2603 when supplied timeout is also non-zero
2607 2006-12-05 Leon Woestenberg
2608 * CHANGELOG: Mention STABLE-1.2.0 release.
2612 2006-12-01 Christiaan Simons
2613 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2614 Note this is a workaround. Currently I have no other options left.
2616 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2617 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2618 to include/lwip/opt.h.
2619 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2620 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2621 * opt.h: Add above new options.
2623 2006-08-18 Christiaan Simons
2624 * tcp_{in,out}.c: added SNMP counters.
2625 * ipv4/ip.c: added SNMP counters.
2626 * ipv4/ip_frag.c: added SNMP counters.
2628 2006-08-08 Christiaan Simons
2629 * etharp.{c,h}: added etharp_find_addr() to read
2630 (stable) ethernet/IP address pair from ARP table
2632 2006-07-14 Christiaan Simons
2633 * mib_structs.c: added
2634 * include/lwip/snmp_structs.h: added
2635 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2637 2006-07-06 Christiaan Simons
2638 * snmp/asn1_{enc,dec}.c added
2640 * snmp/msg_{in,out}.c added
2641 * include/lwip/snmp_asn1.h added
2642 * include/lwip/snmp_msg.h added
2643 * doc/snmp_agent.txt added
2645 2006-03-29 Christiaan Simons
2646 * inet.c, inet.h: Added platform byteswap support.
2647 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2648 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2652 2006-11-30 Christiaan Simons
2653 * dhcp.c: Fixed false triggers of request_timeout.
2655 2006-11-28 Christiaan Simons
2656 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2658 2006-10-11 Christiaan Simons
2659 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2660 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2661 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2662 identifier from 170 to 136 (bug #17574).
2664 2006-10-10 Christiaan Simons
2665 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2667 2006-08-17 Christiaan Simons
2668 * udp.c: Fixed bug #17200, added check for broadcast
2669 destinations for PCBs bound to a unicast address.
2671 2006-08-07 Christiaan Simons
2672 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2674 2006-06-27 Christiaan Simons
2675 * api_msg.c: Applied patch for cold case (bug #11135).
2676 In accept_function() ensure newconn->callback is always initialized.
2678 2006-06-15 Christiaan Simons
2679 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2680 facilitate printing of mem_size_t and u16_t statistics.
2682 2006-06-14 Christiaan Simons
2683 * api_msg.c: Applied patch #5146 to handle allocation failures
2684 in accept() by Kevin Lawson.
2686 2006-05-26 Christiaan Simons
2687 * api_lib.c: Removed conn->sem creation and destruction
2688 from netconn_write() and added sys_sem_new to netconn_new_*.
2692 2006-03-03 Christiaan Simons
2693 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2694 access and added pbuf_alloc() return value checks.
2696 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2697 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2698 now handled by the checksum routine properly.
2700 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2701 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2702 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2704 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2705 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2706 submitted by Mitrani Hiroshi.
2708 2005-12-15 Christiaan Simons
2709 * inet.c: Disabled the added summing routine to preserve code space.
2711 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2712 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2713 Added Curt McDowell's optimized checksumming routine for future
2714 inclusion. Need to create test case for unaliged, aligned, odd,
2715 even length combination of cases on various endianess machines.
2717 2005-12-09 Christiaan Simons
2718 * inet.c: Rewrote standard checksum routine in proper portable C.
2720 2005-11-25 Christiaan Simons
2721 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2722 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2723 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2725 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2726 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2727 routine by Peter Jolasson.
2728 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2730 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2731 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2732 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2734 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2735 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2737 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2738 * udp.c: UDP pcb->recv() was called even when it was NULL.
2742 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2743 * etharp.*: Disabled multiple packets on the ARP queue.
2744 This clashes with TCP queueing.
2746 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2747 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2748 Halved the ARP period, doubled the period counts.
2749 ETHARP_MAX_PENDING now should be at least 2. This prevents
2750 the counter from reaching 0 right away (which would allow
2751 too little time for ARP responses to be received).
2753 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2754 * dhcp.c: Decline messages were not multicast but unicast.
2755 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2756 Do not try hard to insert arbitrary packet's source address,
2757 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2758 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2759 querying an address will see it appear in the cache (DHCP could
2760 suffer from this when a server invalidly gave an in-use address.)
2761 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2762 comparing network addresses (identifiers), not the network masks
2764 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2765 IP address actually belongs to the network of the given interface.
2767 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2768 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2772 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2773 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2774 even if one is already pending, if the rcv_wnd is above a threshold
2775 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2776 delayed ACK in order to open the window if the stack is only receiving data.
2778 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2779 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2781 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2782 * etharp.c: Make sure the first pbuf queued on an ARP entry
2783 is properly ref counted.
2785 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2786 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2787 warnings about comparison.
2788 * pbuf.c: Stopped compiler complaining of empty if statement
2789 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2790 * tcp.c: Stopped compiler complaining of empty if statement
2791 when LWIP_DEBUGF() empty.
2792 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2793 * inet.c: Added a couple of casts to quiet the compiler.
2794 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2796 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2797 * inet.c: Made data types consistent in inet_ntoa().
2798 Added casts for return values of checksum routines, to pacify compiler.
2799 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2800 Small corrections to some debugging statements, to pacify compiler.
2802 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2803 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2804 * ethernetif.c Updated low_level_output() to match prototype for
2805 netif->linkoutput and changed low_level_input() similarly for consistency.
2806 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2807 of raw_recv() in raw.h and so avoid compiler error.
2808 * sockets.c: Added trivial (int) cast to keep compiler happier.
2809 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2815 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2816 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2817 your cc.h file defines this either 1 or 0. If non-defined,
2819 * .c: Added <string.h> and <errno.h> includes where used.
2820 * etharp.c: Made some array indices unsigned.
2822 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2823 * netif.*: Added netif_set_up()/down().
2824 * dhcp.c: Changes to restart program flow.
2826 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2827 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2828 single-pass lookup for different candidates. Should exploit locality.
2830 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2831 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2832 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2833 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2834 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2838 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2839 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2840 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2841 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2842 is to prefix the 14-bit Ethernet headers with two padding bytes.
2844 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2845 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2846 * etharp.c: Fixed the case where the packet that initiates the ARP request
2847 is not queued, and gets lost. Fixed the case where the packets destination
2848 address is already known; we now always queue the packet and perform an ARP
2855 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2856 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2857 * Fixed two possible NULL references in rare cases.
2863 * Fixed DHCP which did not include the IP address in DECLINE messages.
2867 * etharp.c has been hauled over a bit.
2873 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2874 * Packets sent from ARP queue had invalid source hardware address.
2878 * Pass-by ARP requests do now update the cache.
2882 * No longer dependent on ctype.h.
2883 * New socket options.
2884 * Raw IP pcb support.
2890 * Some debug formatters and casts fixed.
2891 * Numereous fixes in PPP.
2895 * DEBUGF now is LWIP_DEBUGF
2896 * pbuf_dechain() has been re-enabled.
2897 * Mentioned the changed use of CVS branches in README.
2903 * Fixed pool pbuf memory leak in pbuf_alloc().
2904 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2905 Reported by Savin Zlobec.
2907 * PBUF_POOL chains had their tot_len field not set for non-first
2908 pbufs. Fixed in pbuf_alloc().
2912 * Added PPP stack contributed by Marc Boucher
2916 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2918 * ARP queueuing now queues the latest packet instead of the first.
2919 This is the RFC recommended behaviour, but can be overridden in
2926 * TCP has been fixed to deal with the new use of the pbuf->ref
2929 * DHCP dhcp_inform() crash bug fixed.
2933 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2934 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2935 Implemented by David Haas.
2941 * The packet buffer implementation has been enhanced to support
2942 zero-copy and copy-on-demand for packet buffers which have their
2943 payloads in application-managed memory.
2944 Implemented by David Haas.
2946 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2947 if an outgoing packet can be directly sent on the link, or perform
2948 a copy-on-demand when necessary.
2950 The application can safely assume the packet is sent, and the RAM
2951 is available to the application directly after calling udp_send()
2952 or similar function.
2956 * ARP_QUEUEING should now correctly work for all cases, including
2958 Implemented by Leon Woestenberg.
2962 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2963 to a '0.0.0.0' IP address.
2965 * The packet buffer implementation is changed. The pbuf->ref counter
2966 meaning has changed, and several pbuf functions have been
2967 adapted accordingly.
2969 * netif drivers have to be changed to set the hardware address length field
2970 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2971 See the contrib/ports/c16x cs8900 driver as a driver example.
2973 * netif's have a dhcp field that must be initialized to NULL by the driver.
2974 See the contrib/ports/c16x cs8900 driver as a driver example.
2976 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2977 logged in CVS but have not been explained here.
2979 (0.5.3) Changes since version 0.5.2
2983 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2984 threads because it wasn't protected by semaphores.
2988 * struct ip_addr now packed.
2990 * The name of the time variable in arp.c has been changed to ctime
2991 to avoid conflicts with the time() function.
2993 (0.5.2) Changes since version 0.5.1
2997 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3001 * A bug in tcp_parseopt() could cause the stack to hang because of a
3002 malformed TCP option.
3004 * The address of new connections in the accept() function in the BSD
3005 socket library was not handled correctly.
3007 * pbuf_dechain() did not update the ->tot_len field of the tail.
3009 * Aborted TCP connections were not handled correctly in all
3014 * All protocol header structs are now packed.
3016 * The ->len field in the tcp_seg structure now counts the actual
3017 amount of data, and does not add one for SYN and FIN segments.
3019 (0.5.1) Changes since version 0.5.0
3023 * Possible to run as a user process under Linux.
3025 * Preliminary support for cross platform packed structs.
3027 * ARP timer now implemented.
3031 * TCP output queue length was badly initialized when opening
3034 * TCP delayed ACKs were not sent correctly.
3036 * Explicit initialization of BSS segment variables.
3038 * read() in BSD socket library could drop data.
3040 * Problems with memory alignment.
3042 * Situations when all TCP buffers were used could lead to
3045 * TCP MSS option wasn't parsed correctly.
3047 * Problems with UDP checksum calculation.
3049 * IP multicast address tests had endianess problems.
3051 * ARP requests had wrong destination hardware address.
3055 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3057 * A ->linkoutput() member was added to struct netif.
3059 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3061 * ntoh* macros are now null definitions for big endian CPUs.
3063 (0.5.0) Changes since version 0.4.2
3067 * Redesigned operating system emulation layer to make porting easier.
3069 * Better control over TCP output buffers.
3071 * Documenation added.
3075 * Locking issues in buffer management.
3077 * Bugfixes in the sequential API.
3079 * IP forwarding could cause memory leakage. This has been fixed.
3083 * Directory structure somewhat changed; the core/ tree has been
3086 (0.4.2) Changes since version 0.4.1
3090 * Experimental ARP implementation added.
3092 * Skeleton Ethernet driver added.
3094 * Experimental BSD socket API library added.
3098 * In very intense situations, memory leakage could occur. This has
3103 * Variables named "data" and "code" have been renamed in order to
3104 avoid name conflicts in certain compilers.
3106 * Variable++ have in appliciable cases been translated to ++variable
3107 since some compilers generate better code in the latter case.
3109 (0.4.1) Changes since version 0.4
3113 * TCP: Connection attempts time out earlier than data
3114 transmissions. Nagle algorithm implemented. Push flag set on the
3115 last segment in a burst.
3117 * UDP: experimental support for UDP-Lite extensions.
3121 * TCP: out of order segments were in some cases handled incorrectly,
3122 and this has now been fixed. Delayed acknowledgements was broken
3123 in 0.4, has now been fixed. Binding to an address that is in use
3124 now results in an error. Reset connections sometimes hung an
3125 application; this has been fixed.
3127 * Checksum calculation sometimes failed for chained pbufs with odd
3128 lengths. This has been fixed.
3130 * API: a lot of bug fixes in the API. The UDP API has been improved
3131 and tested. Error reporting and handling has been
3132 improved. Logical flaws and race conditions for incoming TCP
3133 connections has been found and removed.
3135 * Memory manager: alignment issues. Reallocating memory sometimes
3136 failed, this has been fixed.
3138 * Generic library: bcopy was flawed and has been fixed.
3142 * API: all datatypes has been changed from generic ones such as
3143 ints, to specified ones such as u16_t. Functions that return
3144 errors now have the correct type (err_t).
3146 * General: A lot of code cleaned up and debugging code removed. Many
3147 portability issues have been fixed.
3149 * The license was changed; the advertising clause was removed.
3153 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3154 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3157 (0.4) Changes since version 0.3.1
3159 * Memory management has been radically changed; instead of
3160 allocating memory from a shared heap, memory for objects that are
3161 rapidly allocated and deallocated is now kept in pools. Allocation
3162 and deallocation from those memory pools is very fast. The shared
3163 heap is still present but is used less frequently.
3165 * The memory, memory pool, and packet buffer subsystems now support
3166 4-, 2-, or 1-byte alignment.
3168 * "Out of memory" situations are handled in a more robust way.
3170 * Stack usage has been reduced.
3172 * Easier configuration of lwIP parameters such as memory usage,
3173 TTLs, statistics gathering, etc. All configuration parameters are
3174 now kept in a single header file "lwipopts.h".
3176 * The directory structure has been changed slightly so that all
3177 architecture specific files are kept under the src/arch
3180 * Error propagation has been improved, both in the protocol modules
3183 * The code for the RTXC architecture has been implemented, tested
3186 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3187 the Internet checksum modules.
3189 * Bugs related to porting between a 32-bit and a 16-bit architecture
3190 have been found and corrected.
3192 * The license has been changed slightly to conform more with the
3193 original BSD license, including the advertisement clause.
3195 (0.3.1) Changes since version 0.3
3197 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3198 RAM never returned the RAM when the pbuf was deallocated.
3200 * TCP congestion control, window updates and retransmissions did not
3201 work correctly. This has now been fixed.
3203 * Bugfixes in the API.
3205 (0.3) Changes since version 0.2
3207 * New and improved directory structure. All include files are now
3208 kept in a dedicated include/ directory.
3210 * The API now has proper error handling. A new function,
3211 netconn_err(), now returns an error code for the connection in
3214 * Improvements in the memory management subsystem. The system now
3215 keeps a pointer to the lowest free memory block. A new function,
3216 mem_malloc2() tries to allocate memory once, and if it fails tries
3217 to free some memory and retry the allocation.
3219 * Much testing has been done with limited memory
3220 configurations. lwIP now does a better job when overloaded.
3222 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3224 * Many bugfixes in the TCP code:
3226 - Fixed a bug in tcp_close().
3228 - The TCP receive window was incorrectly closed when out of
3229 sequence segments was received. This has been fixed.
3231 - Connections are now timed-out of the FIN-WAIT-2 state.
3233 - The initial congestion window could in some cases be too
3234 large. This has been fixed.
3236 - The retransmission queue could in some cases be screwed up. This
3239 - TCP RST flag now handled correctly.
3241 - Out of sequence data was in some cases never delivered to the
3242 application. This has been fixed.
3244 - Retransmitted segments now contain the correct acknowledgment
3245 number and advertised window.
3247 - TCP retransmission timeout backoffs are not correctly computed
3248 (ala BSD). After a number of retransmissions, TCP now gives up
3251 * TCP connections now are kept on three lists, one for active
3252 connections, one for listening connections, and one for
3253 connections that are in TIME-WAIT. This greatly speeds up the fast
3254 timeout processing for sending delayed ACKs.
3256 * TCP now provides proper feedback to the application when a
3257 connection has been successfully set up.
3259 * More comments have been added to the code. The code has also been
3260 somewhat cleaned up.
3262 (0.2) Initial public release.