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 2011-10-28: Simon Goldschmidt
73 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
75 2011-10-23: Simon Goldschmidt
76 * mem.c: fixed bug #34429: possible memory corruption with
77 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
79 2011-10-18: Simon Goldschmidt
80 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
83 2011-10-18: Simon Goldschmidt
84 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
85 windows (bug #34176 select after non-blocking send times out)
87 2011-10-18: Simon Goldschmidt
88 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
89 consider netif->mtu, causes slow network
91 2011-10-18: Simon Goldschmidt
92 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
94 2011-10-18: Simon Goldschmidt
95 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
97 2011-10-17: Simon Goldschmidt
98 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
100 2011-10-13: Simon Goldschmidt
101 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
102 zero window is received) by starting the persist timer when a zero window is
103 received, not when we have more data queued for sending than fits into the
106 2011-10-13: Simon Goldschmidt
107 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
109 2011-10-13: Simon Goldschmidt
110 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
111 used and not all protocols are enabled
113 2011-10-12: Simon Goldschmidt
114 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
116 2011-10-09: Simon Goldschmidt
117 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
118 byte value when pcb->unacked != NULL
120 2011-10-09: Simon Goldschmidt
121 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
123 2011-09-27: Simon Goldschmidt
124 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
126 2011-09-27: Simon Goldschmidt
127 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
129 2011-09-27: Simon Goldschmidt
130 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
132 2011-09-24: Simon Goldschmidt
133 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
135 2011-09-23: Simon Goldschmidt
136 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
137 the last packet including FIN can lose data
139 2011-09-22: Simon Goldschmidt
140 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
143 2011-09-21: Simon Goldschmidt
144 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
147 2011-09-20: Simon Goldschmidt
148 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
150 2011-09-11: Simon Goldschmidt
151 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
154 2011-09-09: Simon Goldschmidt
155 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
158 2011-09-03: Simon Goldschmidt
159 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
160 is aggregated and sent to application
162 2011-09-01: Simon Goldschmidt
163 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
166 2011-09-01: Simon Goldschmidt
167 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
169 2011-08-24: Simon Goldschmidt
170 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
172 2011-08-24: Simon Goldschmidt
173 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
174 accept() on UDP connections
176 2011-08-24: Simon Goldschmidt
177 * sockets.h: fixed bug #34057 socklen_t should be a typedef
179 2011-08-24: Simon Goldschmidt
180 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
182 2011-08-24: Simon Goldschmidt
183 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
185 2011-08-24: Simon Goldschmidt
186 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
188 2011-08-22: Simon Goldschmidt
189 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
190 merely prevents nagle from not transmitting fast after closing.)
192 2011-07-22: Simon Goldschmidt
193 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
194 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
195 lwip_send() sends as much as possible for non-blocking sockets
197 2011-07-22: Simon Goldschmidt
198 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
199 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
200 at regular intervals from main level.
202 2011-07-21: Simon Goldschmidt
203 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
204 sending an ARP request when an ARP entry is used in the last minute before
207 2011-07-04: Simon Goldschmidt
208 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
210 2011-06-26: Simon Goldschmidt
211 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
212 updating its documentation only.
214 2011-06-26: Simon Goldschmidt
215 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
218 2011-06-26: Simon Goldschmidt
219 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
227 2011-03-27: Simon Goldschmidt
228 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
229 calculate it in tcp_zero_window_probe (the only place where it was used).
231 2010-11-21: Simon Goldschmidt
232 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
235 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
236 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
237 IP_MULTICAST_LOOP at socket- and raw-API level.
239 2010-06-16: Simon Goldschmidt
240 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
241 link-layer-addressed UDP traffic to be received while a netif is down (just
242 like DHCP during configuration)
244 2010-05-22: Simon Goldschmidt
245 * many many files: bug #27352: removed packing from ip_addr_t, the packed
246 version is now only used in protocol headers. Added global storage for
247 current src/dest IP address while in input functions.
249 2010-05-16: Simon Goldschmidt
250 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
251 calculation (and use them throughout the stack where applicable)
253 2010-05-16: Simon Goldschmidt
254 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
255 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
257 2010-05-16: Simon Goldschmidt
258 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
259 MEMP pool instead of the heap
261 2010-05-13: Simon Goldschmidt
262 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
263 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
264 packets to more than one pcb.
266 2010-05-02: Simon Goldschmidt
267 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
268 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
270 2010-04-30: Simon Goldschmidt
271 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
272 take a precalculated checksum, added pbuf_fill_chksum() to copy data
273 into a pbuf and at the same time calculating the checksum for that data
275 2010-04-29: Simon Goldschmidt
276 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
277 2-byte-aligned IP addresses and MAC addresses
279 2010-04-28: Patch by Bill Auerbach
280 * ip.c: Inline generating IP checksum to save a function call
282 2010-04-14: Simon Goldschmidt
283 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
284 tcpip_thread processes messages or timeouts to implement a watchdog.
286 2010-03-28: Simon Goldschmidt
287 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
288 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
290 2010-03-27: Simon Goldschmidt
291 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
292 etharp_query to prevent unnecessary function calls (inspired by
295 2010-03-20: Simon Goldschmidt
296 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
297 since the linker cannot do this automatically to save space.
299 2010-03-20: Simon Goldschmidt
300 * opt.h, etharp.c/.h: Added support for static ARP table entries
302 2010-03-14: Simon Goldschmidt
303 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
304 when creating TCP segments, not when (re-)transmitting them.
306 2010-03-07: Simon Goldschmidt
307 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
308 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
309 This should speed up receiving data on sockets as the select code in
310 event_callback is only executed when select is waiting.
312 2010-03-06: Simon Goldschmidt
313 * tcp_out.c: task #7013 (Create option to have all packets delivered to
314 netif->output in one piece): Always copy to try to create single pbufs
317 2010-03-06: Simon Goldschmidt
318 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
319 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
320 for tcp netconns to receive pbufs, not netbufs; use that function
323 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
324 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
325 Work on tcp_enqueue: Don't waste memory when chaining segments,
326 added option TCP_OVERSIZE to prevent creating many small pbufs when
327 calling tcp_write with many small blocks of data. Instead, pbufs are
328 allocated larger than needed and the space is used for later calls to
331 2010-02-21: Simon Goldschmidt
332 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
335 2010-02-21: Simon Goldschmidt
336 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
337 implementation of tcp to make API usage cleare to application programmers
339 2010-02-14: Simon Goldschmidt/Stephane Lesage
340 * ip_addr.h: Improved some defines working on ip addresses, added faster
341 macro to copy addresses that cannot be NULL
343 2010-02-13: Simon Goldschmidt
344 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
345 blocking send operation)
347 2010-02-12: Simon Goldschmidt
348 * sockets.c/.h: Added a minimal version of posix fctl() to have a
349 standardised way to set O_NONBLOCK for nonblocking sockets.
351 2010-02-12: Simon Goldschmidt
352 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
353 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
354 and dhcp work with user-allocated structs instead of callin mem_malloc
356 2010-02-12: Simon Goldschmidt/Jeff Barber
357 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
358 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
360 2010-02-12: Simon Goldschmidt
361 * sys layer: task #10139 (Prefer statically allocated memory): converted
362 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
363 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
364 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
365 to let sys.h use binary semaphores instead of mutexes - as before)
367 2010-02-09: Simon Goldschmidt (Simon Kallweit)
368 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
369 (Restart system timeout handling)
371 2010-02-09: Simon Goldschmidt
372 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
373 netif.c) - loopif does not have to be created by the port any more,
374 just define LWIP_HAVE_LOOPIF to 1.
376 2010-02-08: Simon Goldschmidt
377 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
378 inet_ntoa_r/ipaddr_ntoa_r
380 2010-02-08: Simon Goldschmidt
381 * netif.h: Added netif_s/get_igmp_mac_filter() macros
383 2010-02-05: Simon Goldschmidt
384 * netif.h: Added function-like macros to get/set the hostname on a netif
386 2010-02-04: Simon Goldschmidt
387 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
388 make changing the actual implementation behind the typedef easier.
390 2010-02-01: Simon Goldschmidt
391 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
392 for allocating memory when getaddrinfo() is called.
394 2010-01-31: Simon Goldschmidt
395 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
396 them once instead of parsing for every option. This also removes
397 the need for mem_malloc from dhcp_recv and makes it possible to
398 correctly retrieve the BOOTP file.
400 2010-01-30: simon Goldschmidt
401 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
404 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
405 * api.h, api_msg.c, sockets.c: Added except set support in select
408 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
409 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
410 Add non-blocking support for connect (partly from patch #6860),
411 plus many cleanups in socket & netconn API.
413 2010-01-27: Simon Goldschmidt
414 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
415 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
417 2010-01-26: Simon Goldschmidt
418 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
420 2010-01-14: Simon Goldschmidt
421 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
422 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
424 2010-01-13: Simon Goldschmidt
425 * mem.c: The heap now may be moved to user-defined memory by defining
426 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
427 (patch #6966 and bug #26133)
429 2010-01-10: Simon Goldschmidt (Bill Auerbach)
430 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
433 2010-01-10: Simon Goldschmidt
434 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
435 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
437 2009-12-31: Simon Goldschmidt
438 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
439 added timers.c/.h: Separated timer implementation from semaphore/mbox
440 implementation, moved timer implementation to timers.c/.h, timers are
441 now only called from tcpip_thread or by explicitly checking them.
444 2009-12-27: Simon Goldschmidt
445 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
446 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
451 2011-04-20: Simon Goldschmidt
452 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
454 2011-04-13: Simon Goldschmidt
455 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
456 using ports in the IANA private/dynamic range (49152 through 65535).
458 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
459 * etharp.h/.c: Fixed broken VLAN support.
461 2011-03-27: Simon Goldschmidt
462 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
463 pcbs) by checking if the pcb was bound (local_port != 0).
465 2011-03-27: Simon Goldschmidt
466 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
468 2011-03-27: Simon Goldschmidt
469 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
470 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
472 2011-03-27: Simon Goldschmidt
473 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
474 is present never times out) by starting retransmission timer before checking
477 2011-03-22: Simon Goldschmidt
478 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
479 calling sio_read_abort() if the file descriptor is valid.
481 2011-03-14: Simon Goldschmidt
482 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
483 more than once can render a socket useless) since it mainly involves changing
484 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
486 2011-03-13: Simon Goldschmidt
487 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
488 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
489 use EALRADY instead of -1
491 2011-03-13: Simon Goldschmidt
492 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
493 connection has been aborted by err_tcp (since this is not a normal closing
496 2011-03-13: Simon Goldschmidt
497 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
498 with pcb->state != CLOSED
500 2011-02-17: Simon Goldschmidt
501 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
504 2011-02-17: Simon Goldschmidt
505 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
507 2011-01-24: Simon Goldschmidt
508 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
510 2010-12-02: Simon Goldschmidt
511 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
513 2010-11-23: Simon Goldschmidt
514 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
515 LWIP_SO_RCVBUF and ioctl/FIONREAD.
517 2010-11-23: Simon Goldschmidt
518 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
519 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
521 2010-11-23: Simon Goldschmidt
522 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
523 refusing 'refused_data' again.
525 2010-11-22: Simon Goldschmidt
526 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
527 after a successful nonblocking connection.
529 2010-11-22: Simon Goldschmidt
530 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
531 must be sent link-local
533 2010-11-22: Simon Goldschmidt
534 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
537 2010-11-20: Simon Goldschmidt
538 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
540 2010-11-20: Simon Goldschmidt
541 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
542 resemble other stacks.
544 2010-11-20: Simon Goldschmidt
545 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
546 no-copy TCP writes will never succeed.
548 2010-11-20: Simon Goldschmidt
549 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
550 not match documentation: return ERR_ARG instead of ERR_VAL if not
551 initialized or wrong argument.
553 2010-10-20: Simon Goldschmidt
554 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
556 2010-10-05: Simon Goldschmidt
557 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
558 replugging the network cable after an AutoIP address was assigned.
560 2010-08-10: Simon Goldschmidt
561 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
563 2010-08-03: Simon Goldschmidt
564 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
566 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
567 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
568 endian architectures)
570 2010-07-28: Simon Goldschmidt
571 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
574 2010-07-27: Simon Goldschmidt
575 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
576 harm but never did anything
578 2010-07-21: Simon Goldschmidt
579 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
582 2010-07-16: Kieran Mansley
583 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
585 2010-07-10: Simon Goldschmidt
586 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
588 2010-06-30: Simon Goldschmidt
589 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
592 2010-06-28: Kieran Mansley
593 * timers.c remove unportable printing of C function pointers
595 2010-06-24: Simon Goldschmidt
596 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
597 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
599 2010-06-24: Simon Goldschmidt
600 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
601 implemented shutdown at socket level.
603 2010-06-21: Simon Goldschmidt
604 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
605 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
606 custom pbufs that reference other (original) pbufs. Additionally set
607 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
609 2010-06-15: Simon Goldschmidt
610 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
612 2010-06-14: Simon Goldschmidt
613 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
615 2010-06-12: Simon Goldschmidt
616 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
619 2010-05-17: Simon Goldschmidt
620 * netdb.c: Correctly NULL-terminate h_addr_list
622 2010-05-16: Simon Goldschmidt
623 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
624 "symbol already defined" i.e. when linking to winsock
626 2010-05-05: Simon Goldschmidt
627 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
630 2010-04-21: Simon Goldschmidt
631 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
634 2010-03-28: Luca Ceresoli
635 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
637 2010-03-27: Luca Ceresoli
638 * mib2.c: patch #7130: remove meaningless const qualifiers
640 2010-03-26: Simon Goldschmidt
641 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
643 2010-03-26: Simon Goldschmidt
644 * various files: Fixed compiling with different options disabled (TCP/UDP),
645 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
647 2010-03-25: Simon Goldschmidt
648 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
650 2010-03-25: Simon Goldschmidt
651 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
652 overrunning our rcv_wnd in ooseq case.
654 2010-03-22: Simon Goldschmidt
655 * tcp.c: tcp_listen() did not copy the pcb's prio.
657 2010-03-19: Simon Goldschmidt
658 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
660 2010-03-14: Simon Goldschmidt
661 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
662 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
663 and basing PBUF_LINK_HLEN on it.
665 2010-03-08: Simon Goldschmidt
666 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
667 when assiging routable address): when checking incoming packets and
668 aborting existing connection on address change, filter out link-local
671 2010-03-06: Simon Goldschmidt
672 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
674 2010-03-06: Simon Goldschmidt
675 * ipv4/ip.c: Don't try to forward link-local addresses
677 2010-03-06: Simon Goldschmidt
678 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
681 2010-03-05: Simon Goldschmidt
682 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
685 2010-03-05: Simon Goldschmidt
686 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
687 into multiple calls to tcp_write.
689 2010-02-21: Simon Goldschmidt
690 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
691 the implementation of DNS_USES_STATIC_BUF==1)
693 2010-02-20: Simon Goldschmidt
694 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
695 close() vs. shutdown(). Now the application does not get any more
696 recv callbacks after calling tcp_close(). Added tcp_shutdown().
698 2010-02-19: Simon Goldschmidt
699 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
700 confusion with realloc()
702 2010-02-15: Simon Goldschmidt/Stephane Lesage
703 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
706 2010-02-14: Simon Goldschmidt
707 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
708 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
709 admin-status of a netif are up
711 2010-02-14: Simon Goldschmidt
712 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
713 reception and is not really necessary
715 2010-02-14: Simon Goldschmidt
716 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
717 request was directed as us (RFC 826, Packet Reception), otherwise
718 only update existing entries; internalized some functions
720 2010-02-14: Simon Goldschmidt
721 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
722 disabled on netif used for PPPoE) by adding a new netif flag
723 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
724 device but prevents usage of ARP (so that ethernet_input can be used
727 2010-02-12: Simon Goldschmidt
728 * netif.c: netif_set_link_up/down: only do something if the link state
731 2010-02-12: Simon Goldschmidt/Stephane Lesage
732 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
735 2010-02-12: Simon Goldschmidt
736 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
738 2010-02-09: Simon Goldschmidt
739 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
740 (recv() makes receive window update for data that wasn't received by
743 2010-02-09: Simon Goldschmidt/Stephane Lesage
744 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
745 or any netconn_recv() error)
747 2010-02-09: Simon Goldschmidt
748 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
750 2010-02-09: Simon Goldschmidt
751 * netif.c: For loopback packets, adjust the stats- and snmp-counters
752 for the loopback netif.
754 2010-02-08: Simon Goldschmidt
755 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
756 since they are not used anywhere else.
758 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
759 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
760 (patch from bug #28798)
762 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
763 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
764 another bug when LWIP_RAND() returns zero.
766 2010-02-04: Simon Goldschmidt
767 * nearly every file: Use macros defined in ip_addr.h (some of them new)
768 to work with IP addresses (preparation for bug #27352 - Change ip_addr
769 from struct to typedef (u32_t) - and better code).
771 2010-01-31: Simon Goldschmidt
772 * netif.c: Don't call the link-callback from netif_set_up/down() since
773 this invalidly retriggers DHCP.
775 2010-01-29: Simon Goldschmidt
776 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
777 portability file inet.h and its contents from the stack: moved htonX-
778 functions to def.h (and the new def.c - they are not ipv4 dependent),
779 let inet.h depend on ip_addr.h and not the other way round.
780 This fixes bug #28732.
782 2010-01-28: Kieran Mansley
783 * tcp.c: Ensure ssthresh >= 2*MSS
785 2010-01-27: Simon Goldschmidt
786 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
787 callback can lead to accessing unallocated memory. As a consequence,
788 ERR_ABRT means the application has called tcp_abort()!
790 2010-01-25: Simon Goldschmidt
791 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
792 not implemented in SNMP): write-only or not-accessible are still
793 returned by getnext (though not by get)
795 2010-01-24: Simon Goldschmidt
796 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
797 not use reserved C/C++ keywords
799 2010-01-23: Simon Goldschmidt
800 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
803 2010-01-21: Simon Goldschmidt
804 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
805 if tcp_enqueue fails) both in raw- and netconn-API
807 2010-01-19: Simon Goldschmidt
808 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
810 2010-01-18: Iordan Neshev/Simon Goldschmidt
811 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
812 bugfix backports from 2.4.x.
814 2010-01-18: Simon Goldschmidt
815 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
817 2010-01-17: Simon Goldschmidt
818 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
819 task #10102: "netconn: clean up conn->err threading issues" by adding
820 error return value to struct api_msg_msg
822 2010-01-17: Simon Goldschmidt
823 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
824 to return err_t (bugs #27709 and #28087)
826 2010-01-14: Simon Goldschmidt
827 * ...: Use typedef for function prototypes throughout the stack.
829 2010-01-13: Simon Goldschmidt
830 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
831 window = 0) by correctly draining recvmbox/acceptmbox
833 2010-01-11: Simon Goldschmidt
834 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
835 erroneous callbacks) by copying the code from recent pppd
837 2010-01-10: Simon Goldschmidt
838 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
840 2010-01-10: Simon Goldschmidt
841 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
843 2010-01-08: Simon Goldschmidt
844 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
846 2010-01-08: Simon Goldschmidt
847 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
848 passed to dns_local_addhost() might be volatile
850 2010-01-07: Simon Goldschmidt
851 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
853 2010-01-06: Simon Goldschmidt
854 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
856 2009-12-31: Simon Goldschmidt
857 * many ppp files: Reorganised PPP source code from ucip structure to pppd
858 structure to easily compare our code against the pppd code (around v2.3.1)
860 2009-12-27: Simon Goldschmidt
861 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
869 2009-10-27 Simon Goldschmidt/Stephan Lesage
870 * netifapi.c/.h: Added netifapi_netif_set_addr()
872 2009-10-07 Simon Goldschmidt/Fabian Koch
873 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
874 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
876 2009-08-26 Simon Goldschmidt/Simon Kallweit
877 * slipif.c/.h: bug #26397: SLIP polling support
879 2009-08-25 Simon Goldschmidt
880 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
881 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
883 2009-08-25 Simon Goldschmidt
884 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
886 2009-08-24 Jakob Stoklund Olesen
887 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
888 to netif_set_link_up().
890 2009-08-23 Simon Goldschmidt
891 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
892 to a human-readable string.
896 2009-12-24: Kieran Mansley
897 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
900 2009-12-06: Simon Goldschmidt
901 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
902 be statically allocated (like in ucip)
904 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
905 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
907 2009-12-03: Simon Goldschmidt
908 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
909 could have non-zero length
911 2009-12-02: Simon Goldschmidt
912 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
913 tcp_input_pcb until after calling the pcb's callbacks
915 2009-11-29: Simon Goldschmidt
916 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
917 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
919 2009-11-29: Simon Goldschmidt
920 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
921 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
923 2009-11-26: Simon Goldschmidt
924 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
927 2009-11-26: Simon Goldschmidt
928 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
929 algorithm at PCB level
931 2009-11-22: Simon Goldschmidt
932 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
934 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
935 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
936 reusing time-wait pcb
938 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
939 * sockets.c: Fixed bug #28062: Data received directly after accepting
940 does not wake up select
942 2009-11-11: Simon Goldschmidt
943 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
945 2009-10-30: Simon Goldschmidt
946 * opt.h: Increased default value for TCP_MSS to 536, updated default
947 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
949 2009-10-28: Kieran Mansley
950 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
951 to follow algorithm from TCP/IP Illustrated
953 2009-10-27: Kieran Mansley
954 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
956 2009-10-25: Simon Goldschmidt
957 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
958 pcb->recv is NULL to keep rcv_wnd correct)
960 2009-10-25: Simon Goldschmidt
961 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
963 2009-10-23: Simon Goldschmidt (David Empson)
964 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
966 2009-10-21: Simon Goldschmidt
967 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
968 trailing 1 byte len (SYN/FIN)
970 2009-10-21: Simon Goldschmidt
971 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
973 2009-10-19: Simon Goldschmidt
974 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
975 conditional code to assert where applicable), check pbuf length before
976 testing for valid reply
978 2009-10-19: Simon Goldschmidt
979 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
980 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
982 2009-10-16: Simon Goldschmidt
983 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
984 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
987 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
988 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
990 2009-10-15: Simon Goldschmidt
991 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
994 2009-10-15: Simon Goldschmidt
995 * autoip.c: Fixed bug #27704: autoip starts with wrong address
996 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
997 of network byte order
999 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1000 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1001 which are not consecutive when retransmitting unacked segments
1003 2009-10-09 Simon Goldschmidt
1004 * opt.h: Fixed default values of some stats to only be enabled if used
1005 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1007 2009-08-30 Simon Goldschmidt
1008 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1009 function" by checking for loopback before calling ip_frag
1011 2009-08-25 Simon Goldschmidt
1012 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1014 2009-08-23 Simon Goldschmidt
1015 * ppp.c: bug #27078: Possible memory leak in pppInit()
1017 2009-08-23 Simon Goldschmidt
1018 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1021 2009-08-23 Simon Goldschmidt
1022 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1023 Fixed wrong parenthesis, added check in init.c
1025 2009-08-23 Simon Goldschmidt
1026 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1028 2009-08-23 Simon Goldschmidt
1029 * many ppp files: bug #27267: Added include to string.h where needed
1031 2009-08-23 Simon Goldschmidt
1032 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1039 2009-05-10 Simon Goldschmidt
1040 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1041 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1042 one pbuf to help MACs that don't support scatter-gather DMA.
1044 2009-05-09 Simon Goldschmidt
1045 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1046 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1048 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1049 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1050 extended info about the currently received packet.
1052 2009-04-27 Simon Goldschmidt
1053 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1055 2009-04-25 Simon Goldschmidt
1056 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1057 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1059 2009-04-21 Simon Goldschmidt
1060 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1061 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1062 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1063 as an external function for lookup.
1065 2009-04-15 Simon Goldschmidt
1066 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1068 2009-03-31 Kieran Mansley
1069 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1070 TCP timestamp options, off by default. Rework tcp_enqueue() to
1071 take option flags rather than specified option data
1073 2009-02-18 Simon Goldschmidt
1074 * cc.h: Added printf formatter for size_t: SZT_F
1076 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1077 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1080 2009-02-12 Simon Goldschmidt
1081 * init.h: Added LWIP_VERSION to get the current version of the stack
1083 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1084 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1085 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1088 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1089 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1090 is only used by UDPLITE at present, so conditionalise it.
1092 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1093 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1094 "seed" address. This should reduce AUTOIP conflicts if
1095 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1097 2008-10-02 Jonathan Larmour and Rishi Khan
1098 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1101 2008-06-30 Simon Goldschmidt
1102 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1103 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1104 mem_free to run between mem_malloc iterations. Added illegal counter for
1107 2008-06-27 Simon Goldschmidt
1108 * stats.h/.c, some other files: patch #6483: stats module improvement:
1109 Added defines to display each module's statistic individually, added stats
1110 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1112 2008-06-17 Simon Goldschmidt
1113 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1114 (define LWIP_ERR_T in cc.h)
1116 2008-06-17 Simon Goldschmidt
1117 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1120 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1121 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1122 modified version of patch # 6370: Moved loopif code to netif.c so that
1123 loopback traffic is supported on all netifs (all local IPs).
1124 Added option to limit loopback packets for each netifs.
1128 2009-08-12 Kieran Mansley
1129 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1130 out of window or out of order properly
1132 2009-08-12 Kieran Mansley
1133 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1135 2009-07-28 Simon Goldschmidt
1136 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1138 2009-07-27 Kieran Mansley
1139 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1141 2009-07-09 Kieran Mansley
1142 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1143 recv_avail and don't increment counters until message successfully
1146 2009-06-25 Kieran Mansley
1147 * api_msg.c api.h: BUG26722: initialise netconn write variables
1150 2009-06-25 Kieran Mansley
1151 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1153 2009-06-25 Kieran Mansley
1154 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1155 simultaneous close behaviour, and make snd_nxt have the same meaning
1158 2009-05-12 Simon Goldschmidt
1159 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1160 arp_table / uses etharp_query" by adding etharp_gratuitous()
1162 2009-05-12 Simon Goldschmidt
1163 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1164 to the IP header (used by igmp_ip_output_if)
1166 2009-05-06 Simon Goldschmidt
1167 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1168 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1170 2009-05-05 Simon Goldschmidt
1171 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1174 2009-05-04 Simon Goldschmidt
1175 * init.c: snmp was not initialized in lwip_init()
1177 2009-05-04 Frédéric Bernon
1178 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1180 2009-05-03 Simon Goldschmidt
1181 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1182 (and unsent->next == NULL)
1184 2009-05-02 Simon Goldschmidt
1185 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1186 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1188 2009-05-02 Simon Goldschmidt
1189 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1191 2009-05-01 Simon Goldschmidt
1192 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1194 2009-05-01 Simon Goldschmidt
1195 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1197 2009-04-29 Frédéric Bernon
1198 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1199 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1200 of broadcast packets even when this option wasn't set. Port maintainers
1201 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1202 If you want this option also filter broadcast on recv operations, you also
1203 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1205 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1206 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1207 DHCP/AUTOIP cooperation
1209 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1210 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1211 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1212 right place in tcp_output and tcp_rexmit).
1214 2009-04-25 Simon Goldschmidt
1215 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1216 when debugging": memp_sizes contained the wrong sizes (including sanity
1217 regions); memp pools for MEM_USE_POOLS were too small
1219 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1220 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1221 behavior, with with ip address string not ended by a '\0', a space or a
1224 2009-04-19 Simon Goldschmidt
1225 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1226 pcb->err is called, not pcb->connected (with an error code).
1228 2009-04-19 Simon Goldschmidt
1229 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1230 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1232 2009-04-19 Simon Goldschmidt
1233 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1234 in the header pbuf, not the data pbuf)
1236 2009-04-18 Simon Goldschmidt
1237 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1239 2009-04-15 Simon Goldschmidt
1240 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1242 2009-04-15 Simon Goldschmidt
1243 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1245 2009-04-15 Simon Goldschmidt
1246 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1247 ip_hinted_output() (for smaller code mainly)
1249 2009-04-15 Simon Goldschmidt
1250 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1252 2009-04-15 Simon Goldschmidt
1253 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1254 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1255 is big enough in dhcp_start
1257 2009-04-15 Simon Goldschmidt
1258 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1260 2009-04-15 Simon Goldschmidt
1261 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1263 2009-04-15 Simon Goldschmidt
1264 * sockets.c: bug #26121: set_errno can be overridden
1266 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1267 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1270 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1271 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1274 2009-03-31 Kieran Mansley
1275 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1276 updates are calculated and sent (BUG20515)
1278 * tcp_in.c: cope with SYN packets received during established states,
1279 and retransmission of initial SYN.
1281 * tcp_out.c: set push bit correctly when tcp segments are merged
1283 2009-03-27 Kieran Mansley
1284 * tcp_out.c set window correctly on probes (correcting change made
1287 2009-03-26 Kieran Mansley
1288 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1289 connections where no reset required (bug #25622)
1291 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1294 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1295 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1296 too small depending on MEM_ALIGNMENT
1298 2009-02-16 Simon Goldschmidt
1299 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1300 converted size argument of netconn_write to 'size_t'
1302 2009-02-16 Simon Goldschmidt
1303 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1304 by moving accept callback function pointer to TCP_PCB_COMMON
1306 2009-02-12 Simon Goldschmidt
1307 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1310 2009-02-11 Simon Goldschmidt
1311 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1313 2009-02-11 Simon Goldschmidt
1314 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1315 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1317 2009-02-10 Simon Goldschmidt
1318 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1319 Accepts_pending is decrease on a corresponding listen pcb when a connection
1320 in state SYN_RCVD is close.
1322 2009-01-28 Jonathan Larmour
1323 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1326 2008-12-19 Simon Goldschmidt
1327 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1329 2008-12-10 Tamas Somogyi, Frédéric Bernon
1330 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1331 port uses deleted netbuf.
1333 2008-10-18 Simon Goldschmidt
1334 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1337 2008-10-15 Simon Goldschmidt
1338 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1339 by packing the struct ip_reass_helper.
1341 2008-10-03 David Woodhouse, Jonathan Larmour
1342 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1344 2008-10-02 Jonathan Larmour
1345 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1346 padding is included.
1348 2008-09-30 Jonathan Larmour
1349 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1350 assertion check that addrlen isn't NULL.
1352 2008-09-30 Jonathan Larmour
1353 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1355 2008-08-26 Simon Goldschmidt
1356 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1357 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1359 2008-08-14 Simon Goldschmidt
1360 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1361 tcp_close returns != ERR_OK)
1363 2008-07-08 Frédéric Bernon
1364 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1365 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1367 2008-06-24 Jonathan Larmour
1368 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1369 if tcp_seg_copy fails.
1371 2008-06-17 Simon Goldschmidt
1372 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1373 and created defines for swapping bytes and folding u32 to u16.
1375 2008-05-30 Kieran Mansley
1376 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1377 rather than rcv_ann_wnd when deciding if packets are in-window.
1378 Contributed by <arasmussen@consultant.datasys.swri.edu>
1380 2008-05-30 Kieran Mansley
1381 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1382 passing as function pointers when MEM_LIBC_MALLOC is defined.
1384 2008-05-09 Jonathan Larmour
1385 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1386 stop it being treated as a fatal error.
1388 2008-04-15 Simon Goldschmidt
1389 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1392 2008-03-27 Simon Goldschmidt
1393 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1394 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1395 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1396 or heap memory from interrupt context
1398 2008-03-26 Simon Goldschmidt
1399 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1400 host sent a zero mss as TCP option.
1407 2008-03-10 Jonathan Larmour
1408 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1409 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1411 2008-01-22 Frédéric Bernon
1412 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1413 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1415 2008-01-14 Frédéric Bernon
1416 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1417 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1418 tcp_recv callback (see rawapi.txt).
1420 2008-01-14 Frédéric Bernon, Marc Chaland
1421 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1423 2008-01-12 Frédéric Bernon
1424 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1425 netconn::sem per netconn::op_completed like suggested for the task #7490
1426 "Add return value to sys_mbox_post".
1428 2008-01-12 Frédéric Bernon
1429 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1430 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1431 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1433 2008-01-10 Frédéric Bernon
1434 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1435 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1436 "blocking" ("block" parameter = 1).
1438 2008-01-10 Frédéric Bernon
1439 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1440 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1441 "Add return value to sys_mbox_post".
1443 2008-01-05 Frédéric Bernon
1444 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1445 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1446 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1447 indicate the number of pointers query by the mailbox. There is three defines
1448 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1449 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1450 parameter in your implementation, but to ignore it to keep the previous behavior.
1451 The new sys_mbox_trypost function return a value to know if the mailbox is
1452 full or if the message is posted. Take a look to sys_arch.txt for more details.
1453 This new function is used in tcpip_input (so, can be called in an interrupt
1454 context since the function is not blocking), and in recv_udp and recv_raw.
1456 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1457 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1458 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1459 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1460 documentation in the rawapi.txt file.
1462 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1463 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1465 2007-12-31 Frédéric Bernon, Luca Ceresoli
1466 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1467 in autoip". The change in etharp_raw could be removed, since all calls to
1468 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1469 wrong in the future.
1471 2007-12-30 Frédéric Bernon, Tom Evans
1472 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1473 Filtering" reported by Tom Evans.
1475 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1476 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1477 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1478 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1479 keep accepting new connections.
1481 2007-12-13 Frédéric Bernon
1482 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1483 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1485 2007-12-12 Frédéric Bernon
1486 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1487 are the one which have ram usage.
1489 2007-12-05 Frédéric Bernon
1490 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1491 set of variables (=0) or a local one (=1). In this last case, your port should
1492 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1493 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1495 2007-12-03 Simon Goldschmidt
1496 * ip.c: ip_input: check if a packet is for inp first before checking all other
1497 netifs on netif_list (speeds up packet receiving in most cases)
1499 2007-11-30 Simon Goldschmidt
1500 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1501 UDP: move a (connected) pcb selected for input to the front of the list of
1502 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1505 2007-11-28 Simon Goldschmidt
1506 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1508 2007-11-25 Simon Goldschmidt
1509 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1512 2007-11-24 Simon Goldschmidt
1513 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1514 to the new file netdb.c; included lwip_getaddrinfo.
1516 2007-11-21 Simon Goldschmidt
1517 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1518 based on the MTU of the netif used to send. Enabled by default. Disable by
1519 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1521 2007-11-19 Frédéric Bernon
1522 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1523 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1524 copy dns payload to parse the response), return an error if there is no place
1525 for a new query, and fix some minor problems.
1527 2007-11-16 Simon Goldschmidt
1528 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1529 removed files: core/inet.c, core/inet6.c
1530 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1531 inet and chksum part; changed includes in all lwIP files as appropriate
1533 2007-11-16 Simon Goldschmidt
1534 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1535 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1536 (gethostbyname/gethostbyname_r).
1538 2007-11-15 Jim Pettinato, Frédéric Bernon
1539 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1540 requests with RAW api interface. Initialization is done in lwip_init() with
1541 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1542 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1543 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1544 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1545 list with points to improve.
1547 2007-11-06 Simon Goldschmidt
1548 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1549 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1550 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1552 2007-11-06 Simon Goldschmidt
1553 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1554 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1555 implementation from netconn api applications.
1557 2007-11-03 Frédéric Bernon
1558 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1559 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1560 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1561 it. This is a first release which have to be improve for TCP. Note it used the
1562 netconn::recv_avail which need to be more "thread-safe" (note there is already
1563 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1565 2007-11-01 Frédéric Bernon, Marc Chaland
1566 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1567 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1568 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1569 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1570 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1572 2007-10-24 Frédéric Bernon
1573 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1574 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1575 some code (like we have talk in "patch #5919 : Create compile switch to remove
1576 select code"), but it could be done later.
1578 2007-10-08 Simon Goldschmidt
1579 * many files: Changed initialization: many init functions are not needed any
1580 more since we now rely on the compiler initializing global and static
1583 2007-10-06 Simon Goldschmidt
1584 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1585 to enqueue the received pbufs so that multiple packets can be reassembled
1586 simultaneously and no static reassembly buffer is needed.
1588 2007-10-05 Simon Goldschmidt
1589 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1590 all netifs (or ports) can use it.
1592 2007-10-05 Frédéric Bernon
1593 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1594 common function to reduce a little bit the footprint (for all functions using
1595 only the "netif" parameter).
1597 2007-10-03 Frédéric Bernon
1598 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1599 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1600 a little bit the footprint (for all functions using only the "netif" parameter).
1602 2007-09-15 Frédéric Bernon
1603 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1604 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1605 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1606 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1608 2007-09-10 Frédéric Bernon
1609 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1610 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1611 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1612 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1613 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1614 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1615 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1616 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1617 when it's queried (any direct call to "sysuptime" is changed by a call to
1618 snmp_get_sysuptime).
1620 2007-09-09 Frédéric Bernon, Bill Florac
1621 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1622 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1623 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1624 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1625 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1626 the next query message to receive the matching multicast streams).
1628 2007-09-08 Frédéric Bernon
1629 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1630 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1631 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1632 Enable to access to these fields with LWIP_TCP=0.
1634 2007-09-05 Frédéric Bernon
1635 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1636 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1637 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1638 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1639 help to reduce footprint, and to reduce "visibility" on the Internet.
1641 2007-09-05 Frédéric Bernon, Bill Florac
1642 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1643 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1644 parameters have to be provided: a task name, and a task stack size. For this
1645 one, since it's platform dependant, you could define the best one for you in
1646 your lwipopts.h. For port maintainers, you can just add these new parameters
1647 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1650 2007-09-05 Frédéric Bernon
1651 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1652 inside init.c for task #7142 "Sanity check user-configurable values".
1654 2007-09-04 Frédéric Bernon, Bill Florac
1655 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1656 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1657 value). It will avoid potential fragmentation problems, use a counter to know
1658 how many times a group is used on an netif, and free it when all applications
1659 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1660 check if LWIP_IGMP!=0).
1662 2007-09-03 Frédéric Bernon
1663 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1664 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1665 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1666 and/or the "interface" field (for netconn layer), for join/leave operations.
1667 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1668 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1670 2007-08-30 Frédéric Bernon
1671 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1672 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1673 with other API (application based on raw API, or future "socket2" API). Ports
1674 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1676 2007-08-30 Frédéric Bernon, Jonathan Larmour
1677 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1678 user-configurable values".
1680 2007-08-29 Frédéric Bernon
1681 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1682 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1683 spirit than the others modules. Modify some IGMP debug traces.
1685 2007-08-29 Frédéric Bernon
1686 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1687 Add lwip_init function to regroup all modules initializations, and to provide
1688 a place to add code for task #7142 "Sanity check user-configurable values".
1689 Ports maintainers should remove direct initializations calls from their code,
1690 and add init.c in their makefiles. Note that lwip_init() function is called
1691 inside tcpip_init, but can also be used by raw api users since all calls are
1692 disabled when matching options are disabled. Also note that their is new options
1693 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1695 2007-08-26 Marc Boucher
1696 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1697 since they can under certain circumstances be called with an invalid conn
1698 pointer after the connection has been closed (and conn has been freed).
1700 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1701 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1702 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1704 2007-08-22 Frédéric Bernon
1705 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1706 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1708 2007-08-22 Frédéric Bernon
1709 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1710 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1711 name is tcpip_input (we keep the name of 1.2.0 function).
1713 2007-08-17 Jared Grubb
1714 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1715 settings into new memp_std.h and optional user file lwippools.h. This adds
1716 more dynamic mempools, and allows the user to create an arbitrary number of
1717 mempools for mem_malloc.
1719 2007-08-16 Marc Boucher
1720 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1721 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1722 close the connection.
1724 2007-08-16 Marc Boucher
1725 * sockets.c: lwip_accept(): check netconn_peer() error return.
1727 2007-08-16 Marc Boucher
1728 * mem.c, mem.h: Added mem_calloc().
1730 2007-08-16 Marc Boucher
1731 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1732 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1733 and starving other message types.
1734 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1736 2007-08-16 Marc Boucher
1737 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1738 type and flgs (later renamed to flags).
1739 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1740 Improved lwip_recvfrom(). TCP push now propagated.
1742 2007-08-16 Marc Boucher
1743 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1746 2007-08-16 Marc Boucher
1747 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1748 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1749 Added PPPoE support and various PPP improvements.
1751 2007-07-25 Simon Goldschmidt
1752 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1753 making netbuf_copy_partial use this function.
1755 2007-07-25 Simon Goldschmidt
1756 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1757 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1760 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1761 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1762 a link callback in the netif struct, and functions to handle it. Be carefull
1763 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1764 if you want to be sure to be compatible with future changes...
1766 2007-06-30 Frédéric Bernon
1767 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1769 2007-06-21 Simon Goldschmidt
1770 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1771 LWIP_AUTOIP =0 and =1 to remove redundant code.
1773 2007-06-21 Simon Goldschmidt
1774 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1775 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1776 heap. This both prevents memory fragmentation and gives a higher speed
1777 at the cost of more memory consumption. Turned off by default.
1779 2007-06-21 Simon Goldschmidt
1780 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1781 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1782 int to be able to send a bigger buffer than 64K with one time (mainly
1783 used from lwip_send).
1785 2007-06-21 Simon Goldschmidt
1786 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1787 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1789 2007-06-21 Simon Goldschmidt
1790 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1791 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1792 changes on low memory or empty send-buffer.
1794 2007-06-18 Simon Goldschmidt
1795 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1796 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1797 used for ethernet and struct eth_addr already had a defined length of 6).
1799 2007-06-17 Simon Goldschmidt
1800 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1801 to disable UDP checksum generation on transmit.
1803 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1804 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1805 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1806 this macro to check "conn" parameter in api_msg.c functions.
1808 2007-06-11 Simon Goldschmidt
1809 * sockets.c, sockets.h: Added UDP lite support for sockets
1811 2007-06-10 Simon Goldschmidt
1812 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1813 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1816 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1817 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1818 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1819 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1820 (see TODO mark in the source code).
1822 2007-06-09 Simon Goldschmidt
1823 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1824 etharp_output() to match netif->output so etharp_output() can be used
1825 directly as netif->output to save one function call.
1827 2007-06-08 Simon Goldschmidt
1828 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1829 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1830 added initialization of those to ethernetif, slipif and loopif.
1832 2007-05-18 Simon Goldschmidt
1833 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1834 (defaulting to off for now) that can be set to 0 to send fragmented
1835 packets by passing PBUF_REFs down the stack.
1837 2007-05-23 Frédéric Bernon
1838 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1839 connections, such present in patch #5959.
1841 2007-05-23 Frédéric Bernon
1842 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1843 code in only one part...
1845 2007-05-18 Simon Goldschmidt
1846 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1847 elements to overflow. This is achieved by adding some bytes before and after
1848 each pool element (increasing their size, of course), filling them with a
1849 prominent value and checking them on freeing the element.
1850 Set it to 2 to also check every element in every pool each time memp_malloc()
1851 or memp_free() is called (slower but more helpful).
1853 2007-05-10 Simon Goldschmidt
1854 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1855 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1858 2007-05-11 Frédéric Bernon
1859 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1860 Include a function pointer instead of a table index in the message to reduce
1861 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1862 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1864 2007-05-10 Simon Goldschmidt
1865 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1866 \ extern "C" {' in all header files. Now you can write your application using
1867 the lwIP stack in C++ and simply #include the core files. Note I have left
1868 out the netif/ppp/*h header files for now, since I don't know which files are
1869 included by applications and which are for internal use only.
1871 2007-05-09 Simon Goldschmidt
1872 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1873 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1874 situations where some compilers might inline the copy and save a function
1875 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1877 2007-05-08 Simon Goldschmidt
1878 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1879 to be overriden in case the C-library malloc implementation is not protected
1880 against concurrent access.
1882 2007-05-04 Simon Goldschmidt (Atte Kojo)
1883 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1884 multiple packets to the same host.
1886 2007-05-04 Frédéric Bernon, Jonathan Larmour
1887 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1888 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1889 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1890 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1891 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1892 these fields are now renamed "addr" & "port".
1894 2007-04-11 Jonathan Larmour
1895 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1896 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1897 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1898 by the port in sys_arch.h if desired.
1900 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1901 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1902 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1903 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1905 2007-04-05 Frédéric Bernon
1906 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1908 2007-04-04 Simon Goldschmidt
1909 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1910 use this for and architecture-independent form to tell the compiler you intentionally
1911 are not using this variable. Can be overriden in cc.h.
1913 2007-03-28 Frédéric Bernon
1914 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1915 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1916 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1917 It will be used by DHCP to register a client hostname, but can also be use when you call
1920 2007-03-28 Frédéric Bernon
1921 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1922 initialize a network interface's flag with. It tell this interface is an ethernet
1923 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1924 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1926 2007-03-26 Frédéric Bernon, Jonathan Larmour
1927 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1928 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1929 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1930 is done in tcpip_init function.
1932 2007-03-22 Frédéric Bernon
1933 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1934 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1935 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1936 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1937 but never used. Fix msg_in.c with the correct #if test for a stat display.
1939 2007-03-21 Kieran Mansley
1940 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1941 Provides callback on netif up/down state change.
1943 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1944 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1945 ip.c, netif.h, tcpip.c, opt.h:
1946 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1947 filter per all network interfaces. Declare a new function in netif to enable to
1948 control the MAC filter (to reduce lwIP traffic processing).
1950 2007-03-11 Frédéric Bernon
1951 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1952 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1953 unless you know what you're doing (default are RFC1122 compliant). Note
1954 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1956 2007-03-08 Frédéric Bernon
1957 * tcp.h: Keepalive values can be configured at compile time, but don't change
1958 this unless you know what you're doing (default are RFC1122 compliant).
1960 2007-03-08 Frédéric Bernon
1961 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1962 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1963 on UDP sockets/netconn.
1965 2007-03-08 Simon Goldschmidt
1966 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1968 2007-03-06 Frédéric Bernon
1969 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1970 Implement SO_RCVTIMEO on UDP sockets/netconn.
1972 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1973 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1974 on the stack and remove the API msg type from memp
1976 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1977 * sockets.h, sockets.c: Move socket initialization to new
1978 lwip_socket_init() function.
1979 NOTE: this changes the API with ports. Ports will have to be
1980 updated to call lwip_socket_init() now.
1982 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1983 * api_lib.c: Use memcpy in netbuf_copy_partial.
1988 2008-03-17 Frédéric Bernon, Ed Kerekes
1989 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1990 some problems to fill the IP header on some targets, use now the
1991 ip.h macros to do it).
1993 2008-03-13 Frédéric Bernon
1994 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1995 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1996 TCP connection caused a crash. Note that using (lwip_)recvfrom
1997 like this is a bit slow and that using (lwip)getpeername is the
1998 good lwip way to do it (so, using recv is faster on tcp sockets).
2000 2008-03-12 Frédéric Bernon, Jonathan Larmour
2001 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2002 recv_raw() does not consume data", and the ping sample (with
2003 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2004 returned the IP payload, without the IP header).
2006 2008-03-04 Jonathan Larmour
2007 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2008 and/or warnings on some systems where mem_size_t and size_t differ.
2009 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2011 2008-03-04 Kieran Mansley (contributions by others)
2012 * Numerous small compiler error/warning fixes from contributions to
2013 mailing list after 1.3.0 release candidate made.
2015 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2016 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2018 2008-01-15 Kieran Mansley
2019 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2020 prevented from sending by a small send window, not just a zero
2023 2008-01-09 Jonathan Larmour
2024 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2025 conflict with Linux system headers.
2027 2008-01-06 Jonathan Larmour
2028 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2029 address entirely on receiving a DHCPNAK, and restarting discovery.
2031 2007-12-21 Simon Goldschmidt
2032 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2033 is not protected" by using new macros for interlocked access to modify/test
2034 netconn->recv_avail.
2036 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2037 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2039 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2040 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2041 of silly window avoidance and prevent lwIP from shrinking the window)
2043 2007-12-04 Simon Goldschmidt
2044 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2045 data packet was lost): add assert that all segment lists are empty in
2046 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2047 state from LAST_ACK in tcp_process
2049 2007-12-02 Simon Goldschmidt
2050 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2051 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2052 has to be set to 0 in lwipopts.h
2054 2007-12-02 Simon Goldschmidt
2055 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2056 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2057 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2058 This is a fix for thread-safety and allocates all items needed for a netconn
2059 when the netconn is created.
2061 2007-11-30 Simon Goldschmidt
2062 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2063 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2064 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2065 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2067 2007-11-27 Simon Goldschmidt
2068 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2069 letting ip_route only use netifs that are up.
2071 2007-11-27 Simon Goldschmidt
2072 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2073 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2074 sockets block most operations once they have seen a fatal error.
2076 2007-11-27 Simon Goldschmidt
2077 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2078 netif to send as an argument (to be able to send on netifs that are down).
2080 2007-11-26 Simon Goldschmidt
2081 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2084 2007-11-21 Simon Goldschmidt
2085 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2086 Fixed the nagle algorithm; nagle now also works for all raw API applications
2087 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2089 2007-11-12 Frédéric Bernon
2090 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2091 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2092 context in do_getaddr.
2094 2007-11-10 Simon Goldschmidt
2095 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2096 happen any time). Now the packet simply isn't enqueued when out of memory.
2098 2007-11-01 Simon Goldschmidt
2099 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2100 TCP_MSS if that is smaller) as long as no MSS option is received from the
2103 2007-11-01 Simon Goldschmidt
2104 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2105 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2106 sending our configured TCP_MSS instead of the one received).
2108 2007-11-01 Simon Goldschmidt
2109 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2110 calculated based on the configured TCP_MSS, not on the MSS option received
2113 2007-10-09 Simon Goldschmidt
2114 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2115 short and also was generated wrong if checksum coverage != tot_len;
2116 receive: checksum was calculated wrong if checksum coverage != tot_len
2118 2007-10-08 Simon Goldschmidt
2119 * mem.c: lfree was not updated in mem_realloc!
2121 2007-10-07 Frédéric Bernon
2122 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2123 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2124 this change cause an API breakage for netconn_addr, since a parameter
2125 type change. Any compiler should cause an error without any changes in
2126 yours netconn_peer calls (so, it can't be a "silent change"). It also
2127 reduce a little bit the footprint for socket layer (lwip_getpeername &
2128 lwip_getsockname use now a common lwip_getaddrname function since
2129 netconn_peer & netconn_addr have the same parameters).
2131 2007-09-20 Simon Goldschmidt
2132 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2133 by checking tcp_tw_pcbs also
2135 2007-09-19 Simon Goldschmidt
2136 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2138 2007-09-15 Mike Kleshov
2139 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2141 2007-09-06 Frédéric Bernon
2142 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2143 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2144 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2145 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2147 2007-08-30 Frédéric Bernon
2148 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2149 and fix some coding style.
2151 2007-08-28 Frédéric Bernon
2152 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2153 kind of packets. These packets are considered like Ethernet packets (payload
2154 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2155 are considered like IP packets (payload pointing to iphdr).
2157 2007-08-27 Frédéric Bernon
2158 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2159 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2160 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2162 2007-08-24 Kieran Mansley
2163 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2164 compiler (Paradigm C++)
2166 2007-08-09 Frédéric Bernon, Bill Florac
2167 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2168 Introduce IGMP_STATS to centralize statistics management.
2170 2007-08-09 Frédéric Bernon, Bill Florac
2171 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2172 packet on a udp pcb binded on an netif's IP address, and not on "any".
2174 2007-08-09 Frédéric Bernon, Bill Florac
2175 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2176 This is mainly on using lookup/lookfor, and some coding styles...
2178 2007-07-26 Frédéric Bernon (and "thedoctor")
2179 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2181 2007-07-25 Simon Goldschmidt
2182 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2183 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2184 (tcp_output is called again later from tcp timers).
2186 2007-07-25 Simon Goldschmidt
2187 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2188 copy_from_pbuf, which illegally modified the given pbuf.
2190 2007-07-25 Simon Goldschmidt
2191 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2192 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2194 2007-07-24 Simon Goldschmidt
2195 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2196 correct state (must be CLOSED).
2198 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2199 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2200 allocation. It now returns NULL.
2202 2007-07-13 Frédéric Bernon
2203 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2206 2007-07-13 Frédéric Bernon
2207 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2208 because current code doesn't follow rawapi.txt documentation.
2210 2007-07-13 Kieran Mansley
2211 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2212 out of sequence processing of received packets
2214 2007-07-03 Simon Goldschmidt
2215 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2216 assumption is made that this pbuf is in one piece (i.e. not chained). These
2217 assumptions clash with the possibility of converting to fully pool-based
2218 pbuf implementations, where PBUF_RAM pbufs might be chained.
2220 2007-07-03 Simon Goldschmidt
2221 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2222 when closing tcp netconns: removed conn->sem, less context switches when
2223 closing, both netconn_close and netconn_delete should safely close tcp
2226 2007-07-02 Simon Goldschmidt
2227 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2228 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2229 to cache ARP table indices with each pcb instead of single-entry cache for
2232 2007-07-02 Simon Goldschmidt
2233 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2234 warnings when assigning to smaller types.
2236 2007-06-28 Simon Goldschmidt
2237 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2239 2007-06-28 Simon Goldschmidt
2240 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2241 a segment contained chained pbufs)
2243 2007-06-28 Frédéric Bernon
2244 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2245 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2246 possible to define this macro in your own lwipopts.h to always use C library's
2247 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2249 2007-06-28 Frédéric Bernon
2250 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2251 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2252 in api_lib/api_msg (use pointers and not type with table, etc...)
2254 2007-06-26 Simon Goldschmidt
2255 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2257 2007-06-25 Simon Goldschmidt
2258 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2259 for udp packets with no matching pcb.
2261 2007-06-25 Simon Goldschmidt
2262 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2263 could get udp input packets if the remote side matched.
2265 2007-06-13 Simon Goldschmidt
2266 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2267 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2269 2007-06-13 Simon Goldschmidt
2270 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2271 -> netconn_new_..() does not allocate a new connection for unsupported
2274 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2275 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2276 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2278 2007-06-13 Frédéric Bernon, Matthias Weisser
2279 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2280 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2281 some macro names collision with some OS macros.
2283 2007-06-11 Simon Goldschmidt
2284 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2285 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2286 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2289 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2290 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2291 where TCP flags wasn't initialized in tcp_keepalive.
2293 2007-06-03 Simon Goldschmidt
2294 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2295 registered, p->payload was modified without modifying p->len if sending
2296 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2298 2007-06-03 Simon Goldschmidt
2299 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2300 re-used the input pbuf even if that didn't have enough space to include the
2301 link headers. Now the space is tested and a new pbuf is allocated for the
2302 echo response packet if the echo request pbuf isn't big enough.
2304 2007-06-01 Simon Goldschmidt
2305 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2307 2007-05-23 Frédéric Bernon
2308 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2309 allocated by do_listen if success) and netconn_accept errors handling. In
2310 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2311 by ASSERT, except for netconn_delete.
2313 2007-05-23 Frédéric Bernon
2314 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2315 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2316 directly close the recvmbox).
2318 2007-05-22 Simon Goldschmidt
2319 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2320 bound but unconnected (and non-listening) tcp_pcbs.
2322 2007-05-22 Frédéric Bernon
2323 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2324 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2325 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2326 like "sys_timeout" in their application threads.
2328 2007-05-22 Frédéric Bernon
2329 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2330 which parameters are used by which do_xxx function, and to avoid "misusing"
2331 parameters (patch #5938).
2333 2007-05-22 Simon Goldschmidt
2334 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2335 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2336 is only 8 bits wide. This affects the api, as there, the protocol was
2339 2007-05-18 Simon Goldschmidt
2340 * memp.c: addition to patch #5913: smaller pointer was returned but
2341 memp_memory was the same size -> did not save memory.
2343 2007-05-16 Simon Goldschmidt
2344 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2347 2007-05-16 Simon Goldschmidt
2348 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2349 as the one of the netif used for sending to prevent sending from old
2350 addresses after a netif address gets changed (partly fixes bug #3168).
2352 2007-05-16 Frédéric Bernon
2353 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2354 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2355 tcpip_init) because we have to be sure that network interfaces are already
2356 added (mac filter is updated only in igmp_init for the moment).
2358 2007-05-16 Simon Goldschmidt
2359 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2360 into sys_arch_sem_wait calls to prevent timers from running while waiting
2361 for the heap. This fixes bug #19167.
2363 2007-05-13 Simon Goldschmidt
2364 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2365 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2368 2007-05-07 Simon Goldschmidt
2369 * mem.c: Another attempt to fix bug #17922.
2371 2007-05-04 Simon Goldschmidt
2372 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2373 implementation so that it can be reused (don't allocate the target
2374 pbuf inside pbuf_copy()).
2376 2007-05-04 Simon Goldschmidt
2377 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2378 to save a little RAM (next pointer of memp is not used while not in pool).
2381 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2384 2007-04-23 Simon Goldschmidt
2385 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2386 in NULL reference for incoming TCP packets". Loopif has to be configured
2387 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2388 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2389 putting packets on a list that is fed to the stack by calling loopif_poll()
2390 (single-thread / NO_SYS / polling environment where e.g.
2391 netif->input() = ip_input).
2393 2007-04-17 Jonathan Larmour
2394 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2395 the difference between two u16_t's.
2396 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2397 MEMP_NUM_NETCONN in sockets.c right now.
2399 2007-04-12 Jonathan Larmour
2400 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2402 2007-04-12 Kieran Mansley
2403 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2404 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2406 2007-04-11 Simon Goldschmidt
2407 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2408 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2409 pbuf.c: removed functions no needed any more (by etharp).
2411 2007-04-11 Kieran Mansley
2412 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2413 "Constant is long" warnings with 16bit compilers. Contributed by
2414 avatar@mmlab.cse.yzu.edu.tw
2416 2007-04-05 Frédéric Bernon, Jonathan Larmour
2417 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2418 the mailbox is active". Now, the post is only done during a connect, and do_send,
2419 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2421 2007-04-03 Frédéric Bernon
2422 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2423 packets. See patch #5834.
2425 2007-03-30 Frédéric Bernon
2426 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2427 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2429 2007-03-30 Frédéric Bernon
2430 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2431 others environment defines (these were too "generic").
2433 2007-03-28 Frédéric Bernon
2434 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2435 result and can cause a crash. lwip_send now check netbuf_ref result.
2437 2007-03-28 Simon Goldschmidt
2438 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2439 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2440 defined. This is the way it should have been already (looking at
2443 2007-03-28 Kieran Mansley
2444 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2445 IP and TCP headers *and* physical link headers
2447 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2448 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2449 to send some garbage. It is not a definitive solution, but the patch does solve
2450 the problem for most cases.
2452 2007-03-22 Frédéric Bernon
2453 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2455 2007-03-22 Frédéric Bernon
2456 * api_lib.c: somes resources couldn't be freed if there was errors during
2457 netconn_new_with_proto_and_callback.
2459 2007-03-22 Frédéric Bernon
2460 * ethernetif.c: update netif->input calls to check return value. In older ports,
2461 it's a good idea to upgrade them, even if before, there could be another problem
2462 (access to an uninitialized mailbox).
2464 2007-03-21 Simon Goldschmidt
2465 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2466 by casting to unsigned).
2468 2007-03-21 Frédéric Bernon
2469 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2470 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2471 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2472 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2473 faster and more reliable communication between api_lib and tcpip.
2475 2007-03-21 Frédéric Bernon
2476 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2478 2007-03-21 Frédéric Bernon
2479 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2481 2007-03-21 Kieran Mansley
2482 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2485 2007-03-21 Kieran Mansley
2486 * Fix all uses of pbuf_header to check the return value. In some
2487 cases just assert if it fails as I'm not sure how to fix them, but
2488 this is no worse than before when they would carry on regardless
2491 2007-03-21 Kieran Mansley
2492 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2493 comment out missing header include in icmp.c
2495 2007-03-20 Frédéric Bernon
2496 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2497 synchronized with memp.h.
2499 2007-03-20 Frédéric Bernon
2500 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2501 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2502 network interfaces. Also fix a compiler warning.
2504 2007-03-20 Kieran Mansley
2505 * udp.c: Only try and use pbuf_header() to make space for headers if
2506 not a ROM or REF pbuf.
2508 2007-03-19 Frédéric Bernon
2509 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2512 2007-03-19 Frédéric Bernon
2513 * Remove unimplemented "memp_realloc" function from memp.h.
2515 2007-03-11 Simon Goldschmidt
2516 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2519 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2520 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2521 (missing `const' qualifier in socket functions), to get more compatible to
2522 standard POSIX sockets.
2524 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2525 * sockets.c: Add asserts inside bind, connect and sendto to check input
2526 parameters. Remove excessive set_errno() calls after get_socket(), because
2527 errno is set inside of get_socket(). Move last sock_set_errno() inside
2530 2007-03-09 Simon Goldschmidt
2531 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2532 was allocated too small.
2534 2007-03-06 Simon Goldschmidt
2535 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2536 the stack from concurrent access.
2538 2007-03-06 Frédéric Bernon, Dmitry Potapov
2539 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2540 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2542 2007-03-06 Simon Goldschmidt
2543 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2544 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2546 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2547 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2548 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2549 Allow to do ARP processing for incoming packets inside tcpip_thread
2550 (protecting ARP layer against concurrent access). You can also disable
2551 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2552 Older ports have to use tcpip_ethinput.
2554 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2555 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2556 from pointer target type"
2558 2007-03-05 Frédéric Bernon
2559 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2560 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2562 2007-03-04 Frédéric Bernon
2563 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2566 2007-03-04 Frédéric Bernon
2567 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2569 The api_msg struct stay on the stack (not moved to netconn struct).
2571 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2572 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2573 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2574 Also fixed cast warning in pbuf_alloc()
2576 2007-03-04 Simon Goldschmidt
2577 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2578 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2580 2007-03-03 Frédéric Bernon
2581 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2582 It is static, and never used in udp.c except udp_init().
2584 2007-03-02 Simon Goldschmidt
2585 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2586 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2587 initialized before tcpip_thread is running (e.g. before OS is started)
2589 2007-03-02 Frédéric Bernon
2590 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2593 2007-02-28 Kieran Mansley
2594 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2595 outside the region of the pbuf by pbuf_header()
2597 2007-02-28 Kieran Mansley
2598 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2599 when supplied timeout is also non-zero
2603 2006-12-05 Leon Woestenberg
2604 * CHANGELOG: Mention STABLE-1.2.0 release.
2608 2006-12-01 Christiaan Simons
2609 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2610 Note this is a workaround. Currently I have no other options left.
2612 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2613 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2614 to include/lwip/opt.h.
2615 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2616 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2617 * opt.h: Add above new options.
2619 2006-08-18 Christiaan Simons
2620 * tcp_{in,out}.c: added SNMP counters.
2621 * ipv4/ip.c: added SNMP counters.
2622 * ipv4/ip_frag.c: added SNMP counters.
2624 2006-08-08 Christiaan Simons
2625 * etharp.{c,h}: added etharp_find_addr() to read
2626 (stable) ethernet/IP address pair from ARP table
2628 2006-07-14 Christiaan Simons
2629 * mib_structs.c: added
2630 * include/lwip/snmp_structs.h: added
2631 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2633 2006-07-06 Christiaan Simons
2634 * snmp/asn1_{enc,dec}.c added
2636 * snmp/msg_{in,out}.c added
2637 * include/lwip/snmp_asn1.h added
2638 * include/lwip/snmp_msg.h added
2639 * doc/snmp_agent.txt added
2641 2006-03-29 Christiaan Simons
2642 * inet.c, inet.h: Added platform byteswap support.
2643 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2644 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2648 2006-11-30 Christiaan Simons
2649 * dhcp.c: Fixed false triggers of request_timeout.
2651 2006-11-28 Christiaan Simons
2652 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2654 2006-10-11 Christiaan Simons
2655 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2656 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2657 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2658 identifier from 170 to 136 (bug #17574).
2660 2006-10-10 Christiaan Simons
2661 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2663 2006-08-17 Christiaan Simons
2664 * udp.c: Fixed bug #17200, added check for broadcast
2665 destinations for PCBs bound to a unicast address.
2667 2006-08-07 Christiaan Simons
2668 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2670 2006-06-27 Christiaan Simons
2671 * api_msg.c: Applied patch for cold case (bug #11135).
2672 In accept_function() ensure newconn->callback is always initialized.
2674 2006-06-15 Christiaan Simons
2675 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2676 facilitate printing of mem_size_t and u16_t statistics.
2678 2006-06-14 Christiaan Simons
2679 * api_msg.c: Applied patch #5146 to handle allocation failures
2680 in accept() by Kevin Lawson.
2682 2006-05-26 Christiaan Simons
2683 * api_lib.c: Removed conn->sem creation and destruction
2684 from netconn_write() and added sys_sem_new to netconn_new_*.
2688 2006-03-03 Christiaan Simons
2689 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2690 access and added pbuf_alloc() return value checks.
2692 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2693 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2694 now handled by the checksum routine properly.
2696 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2697 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2698 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2700 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2701 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2702 submitted by Mitrani Hiroshi.
2704 2005-12-15 Christiaan Simons
2705 * inet.c: Disabled the added summing routine to preserve code space.
2707 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2708 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2709 Added Curt McDowell's optimized checksumming routine for future
2710 inclusion. Need to create test case for unaliged, aligned, odd,
2711 even length combination of cases on various endianess machines.
2713 2005-12-09 Christiaan Simons
2714 * inet.c: Rewrote standard checksum routine in proper portable C.
2716 2005-11-25 Christiaan Simons
2717 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2718 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2719 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2721 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2722 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2723 routine by Peter Jolasson.
2724 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2726 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2727 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2728 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2730 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2731 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2733 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2734 * udp.c: UDP pcb->recv() was called even when it was NULL.
2738 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2739 * etharp.*: Disabled multiple packets on the ARP queue.
2740 This clashes with TCP queueing.
2742 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2743 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2744 Halved the ARP period, doubled the period counts.
2745 ETHARP_MAX_PENDING now should be at least 2. This prevents
2746 the counter from reaching 0 right away (which would allow
2747 too little time for ARP responses to be received).
2749 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2750 * dhcp.c: Decline messages were not multicast but unicast.
2751 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2752 Do not try hard to insert arbitrary packet's source address,
2753 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2754 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2755 querying an address will see it appear in the cache (DHCP could
2756 suffer from this when a server invalidly gave an in-use address.)
2757 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2758 comparing network addresses (identifiers), not the network masks
2760 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2761 IP address actually belongs to the network of the given interface.
2763 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2764 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2768 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2769 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2770 even if one is already pending, if the rcv_wnd is above a threshold
2771 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2772 delayed ACK in order to open the window if the stack is only receiving data.
2774 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2775 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2777 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2778 * etharp.c: Make sure the first pbuf queued on an ARP entry
2779 is properly ref counted.
2781 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2782 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2783 warnings about comparison.
2784 * pbuf.c: Stopped compiler complaining of empty if statement
2785 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2786 * tcp.c: Stopped compiler complaining of empty if statement
2787 when LWIP_DEBUGF() empty.
2788 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2789 * inet.c: Added a couple of casts to quiet the compiler.
2790 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2792 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2793 * inet.c: Made data types consistent in inet_ntoa().
2794 Added casts for return values of checksum routines, to pacify compiler.
2795 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2796 Small corrections to some debugging statements, to pacify compiler.
2798 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2799 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2800 * ethernetif.c Updated low_level_output() to match prototype for
2801 netif->linkoutput and changed low_level_input() similarly for consistency.
2802 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2803 of raw_recv() in raw.h and so avoid compiler error.
2804 * sockets.c: Added trivial (int) cast to keep compiler happier.
2805 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2811 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2812 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2813 your cc.h file defines this either 1 or 0. If non-defined,
2815 * .c: Added <string.h> and <errno.h> includes where used.
2816 * etharp.c: Made some array indices unsigned.
2818 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2819 * netif.*: Added netif_set_up()/down().
2820 * dhcp.c: Changes to restart program flow.
2822 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2823 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2824 single-pass lookup for different candidates. Should exploit locality.
2826 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2827 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2828 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2829 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2830 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2834 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2835 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2836 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2837 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2838 is to prefix the 14-bit Ethernet headers with two padding bytes.
2840 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2841 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2842 * etharp.c: Fixed the case where the packet that initiates the ARP request
2843 is not queued, and gets lost. Fixed the case where the packets destination
2844 address is already known; we now always queue the packet and perform an ARP
2851 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2852 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2853 * Fixed two possible NULL references in rare cases.
2859 * Fixed DHCP which did not include the IP address in DECLINE messages.
2863 * etharp.c has been hauled over a bit.
2869 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2870 * Packets sent from ARP queue had invalid source hardware address.
2874 * Pass-by ARP requests do now update the cache.
2878 * No longer dependent on ctype.h.
2879 * New socket options.
2880 * Raw IP pcb support.
2886 * Some debug formatters and casts fixed.
2887 * Numereous fixes in PPP.
2891 * DEBUGF now is LWIP_DEBUGF
2892 * pbuf_dechain() has been re-enabled.
2893 * Mentioned the changed use of CVS branches in README.
2899 * Fixed pool pbuf memory leak in pbuf_alloc().
2900 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2901 Reported by Savin Zlobec.
2903 * PBUF_POOL chains had their tot_len field not set for non-first
2904 pbufs. Fixed in pbuf_alloc().
2908 * Added PPP stack contributed by Marc Boucher
2912 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2914 * ARP queueuing now queues the latest packet instead of the first.
2915 This is the RFC recommended behaviour, but can be overridden in
2922 * TCP has been fixed to deal with the new use of the pbuf->ref
2925 * DHCP dhcp_inform() crash bug fixed.
2929 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2930 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2931 Implemented by David Haas.
2937 * The packet buffer implementation has been enhanced to support
2938 zero-copy and copy-on-demand for packet buffers which have their
2939 payloads in application-managed memory.
2940 Implemented by David Haas.
2942 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2943 if an outgoing packet can be directly sent on the link, or perform
2944 a copy-on-demand when necessary.
2946 The application can safely assume the packet is sent, and the RAM
2947 is available to the application directly after calling udp_send()
2948 or similar function.
2952 * ARP_QUEUEING should now correctly work for all cases, including
2954 Implemented by Leon Woestenberg.
2958 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2959 to a '0.0.0.0' IP address.
2961 * The packet buffer implementation is changed. The pbuf->ref counter
2962 meaning has changed, and several pbuf functions have been
2963 adapted accordingly.
2965 * netif drivers have to be changed to set the hardware address length field
2966 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2967 See the contrib/ports/c16x cs8900 driver as a driver example.
2969 * netif's have a dhcp field that must be initialized to NULL by the driver.
2970 See the contrib/ports/c16x cs8900 driver as a driver example.
2972 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2973 logged in CVS but have not been explained here.
2975 (0.5.3) Changes since version 0.5.2
2979 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2980 threads because it wasn't protected by semaphores.
2984 * struct ip_addr now packed.
2986 * The name of the time variable in arp.c has been changed to ctime
2987 to avoid conflicts with the time() function.
2989 (0.5.2) Changes since version 0.5.1
2993 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2997 * A bug in tcp_parseopt() could cause the stack to hang because of a
2998 malformed TCP option.
3000 * The address of new connections in the accept() function in the BSD
3001 socket library was not handled correctly.
3003 * pbuf_dechain() did not update the ->tot_len field of the tail.
3005 * Aborted TCP connections were not handled correctly in all
3010 * All protocol header structs are now packed.
3012 * The ->len field in the tcp_seg structure now counts the actual
3013 amount of data, and does not add one for SYN and FIN segments.
3015 (0.5.1) Changes since version 0.5.0
3019 * Possible to run as a user process under Linux.
3021 * Preliminary support for cross platform packed structs.
3023 * ARP timer now implemented.
3027 * TCP output queue length was badly initialized when opening
3030 * TCP delayed ACKs were not sent correctly.
3032 * Explicit initialization of BSS segment variables.
3034 * read() in BSD socket library could drop data.
3036 * Problems with memory alignment.
3038 * Situations when all TCP buffers were used could lead to
3041 * TCP MSS option wasn't parsed correctly.
3043 * Problems with UDP checksum calculation.
3045 * IP multicast address tests had endianess problems.
3047 * ARP requests had wrong destination hardware address.
3051 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3053 * A ->linkoutput() member was added to struct netif.
3055 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3057 * ntoh* macros are now null definitions for big endian CPUs.
3059 (0.5.0) Changes since version 0.4.2
3063 * Redesigned operating system emulation layer to make porting easier.
3065 * Better control over TCP output buffers.
3067 * Documenation added.
3071 * Locking issues in buffer management.
3073 * Bugfixes in the sequential API.
3075 * IP forwarding could cause memory leakage. This has been fixed.
3079 * Directory structure somewhat changed; the core/ tree has been
3082 (0.4.2) Changes since version 0.4.1
3086 * Experimental ARP implementation added.
3088 * Skeleton Ethernet driver added.
3090 * Experimental BSD socket API library added.
3094 * In very intense situations, memory leakage could occur. This has
3099 * Variables named "data" and "code" have been renamed in order to
3100 avoid name conflicts in certain compilers.
3102 * Variable++ have in appliciable cases been translated to ++variable
3103 since some compilers generate better code in the latter case.
3105 (0.4.1) Changes since version 0.4
3109 * TCP: Connection attempts time out earlier than data
3110 transmissions. Nagle algorithm implemented. Push flag set on the
3111 last segment in a burst.
3113 * UDP: experimental support for UDP-Lite extensions.
3117 * TCP: out of order segments were in some cases handled incorrectly,
3118 and this has now been fixed. Delayed acknowledgements was broken
3119 in 0.4, has now been fixed. Binding to an address that is in use
3120 now results in an error. Reset connections sometimes hung an
3121 application; this has been fixed.
3123 * Checksum calculation sometimes failed for chained pbufs with odd
3124 lengths. This has been fixed.
3126 * API: a lot of bug fixes in the API. The UDP API has been improved
3127 and tested. Error reporting and handling has been
3128 improved. Logical flaws and race conditions for incoming TCP
3129 connections has been found and removed.
3131 * Memory manager: alignment issues. Reallocating memory sometimes
3132 failed, this has been fixed.
3134 * Generic library: bcopy was flawed and has been fixed.
3138 * API: all datatypes has been changed from generic ones such as
3139 ints, to specified ones such as u16_t. Functions that return
3140 errors now have the correct type (err_t).
3142 * General: A lot of code cleaned up and debugging code removed. Many
3143 portability issues have been fixed.
3145 * The license was changed; the advertising clause was removed.
3149 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3150 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3153 (0.4) Changes since version 0.3.1
3155 * Memory management has been radically changed; instead of
3156 allocating memory from a shared heap, memory for objects that are
3157 rapidly allocated and deallocated is now kept in pools. Allocation
3158 and deallocation from those memory pools is very fast. The shared
3159 heap is still present but is used less frequently.
3161 * The memory, memory pool, and packet buffer subsystems now support
3162 4-, 2-, or 1-byte alignment.
3164 * "Out of memory" situations are handled in a more robust way.
3166 * Stack usage has been reduced.
3168 * Easier configuration of lwIP parameters such as memory usage,
3169 TTLs, statistics gathering, etc. All configuration parameters are
3170 now kept in a single header file "lwipopts.h".
3172 * The directory structure has been changed slightly so that all
3173 architecture specific files are kept under the src/arch
3176 * Error propagation has been improved, both in the protocol modules
3179 * The code for the RTXC architecture has been implemented, tested
3182 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3183 the Internet checksum modules.
3185 * Bugs related to porting between a 32-bit and a 16-bit architecture
3186 have been found and corrected.
3188 * The license has been changed slightly to conform more with the
3189 original BSD license, including the advertisement clause.
3191 (0.3.1) Changes since version 0.3
3193 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3194 RAM never returned the RAM when the pbuf was deallocated.
3196 * TCP congestion control, window updates and retransmissions did not
3197 work correctly. This has now been fixed.
3199 * Bugfixes in the API.
3201 (0.3) Changes since version 0.2
3203 * New and improved directory structure. All include files are now
3204 kept in a dedicated include/ directory.
3206 * The API now has proper error handling. A new function,
3207 netconn_err(), now returns an error code for the connection in
3210 * Improvements in the memory management subsystem. The system now
3211 keeps a pointer to the lowest free memory block. A new function,
3212 mem_malloc2() tries to allocate memory once, and if it fails tries
3213 to free some memory and retry the allocation.
3215 * Much testing has been done with limited memory
3216 configurations. lwIP now does a better job when overloaded.
3218 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3220 * Many bugfixes in the TCP code:
3222 - Fixed a bug in tcp_close().
3224 - The TCP receive window was incorrectly closed when out of
3225 sequence segments was received. This has been fixed.
3227 - Connections are now timed-out of the FIN-WAIT-2 state.
3229 - The initial congestion window could in some cases be too
3230 large. This has been fixed.
3232 - The retransmission queue could in some cases be screwed up. This
3235 - TCP RST flag now handled correctly.
3237 - Out of sequence data was in some cases never delivered to the
3238 application. This has been fixed.
3240 - Retransmitted segments now contain the correct acknowledgment
3241 number and advertised window.
3243 - TCP retransmission timeout backoffs are not correctly computed
3244 (ala BSD). After a number of retransmissions, TCP now gives up
3247 * TCP connections now are kept on three lists, one for active
3248 connections, one for listening connections, and one for
3249 connections that are in TIME-WAIT. This greatly speeds up the fast
3250 timeout processing for sending delayed ACKs.
3252 * TCP now provides proper feedback to the application when a
3253 connection has been successfully set up.
3255 * More comments have been added to the code. The code has also been
3256 somewhat cleaned up.
3258 (0.2) Initial public release.