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 2011-10-17: Simon Goldschmidt
73 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
75 2011-10-13: Simon Goldschmidt
76 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
77 zero window is received) by starting the persist timer when a zero window is
78 received, not when we have more data queued for sending than fits into the
81 2011-10-13: Simon Goldschmidt
82 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
84 2011-10-13: Simon Goldschmidt
85 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
86 used and not all protocols are enabled
88 2011-10-12: Simon Goldschmidt
89 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
91 2011-10-09: Simon Goldschmidt
92 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
93 byte value when pcb->unacked != NULL
95 2011-10-09: Simon Goldschmidt
96 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
98 2011-09-27: Simon Goldschmidt
99 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
101 2011-09-27: Simon Goldschmidt
102 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
104 2011-09-27: Simon Goldschmidt
105 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
107 2011-09-24: Simon Goldschmidt
108 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
110 2011-09-23: Simon Goldschmidt
111 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
112 the last packet including FIN can lose data
114 2011-09-22: Simon Goldschmidt
115 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
118 2011-09-21: Simon Goldschmidt
119 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
122 2011-09-20: Simon Goldschmidt
123 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
125 2011-09-11: Simon Goldschmidt
126 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
129 2011-09-09: Simon Goldschmidt
130 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
133 2011-09-03: Simon Goldschmidt
134 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
135 is aggregated and sent to application
137 2011-09-01: Simon Goldschmidt
138 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
141 2011-09-01: Simon Goldschmidt
142 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
144 2011-08-24: Simon Goldschmidt
145 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
147 2011-08-24: Simon Goldschmidt
148 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
149 accept() on UDP connections
151 2011-08-24: Simon Goldschmidt
152 * sockets.h: fixed bug #34057 socklen_t should be a typedef
154 2011-08-24: Simon Goldschmidt
155 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
157 2011-08-24: Simon Goldschmidt
158 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
160 2011-08-24: Simon Goldschmidt
161 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
163 2011-08-22: Simon Goldschmidt
164 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
165 merely prevents nagle from not transmitting fast after closing.)
167 2011-07-22: Simon Goldschmidt
168 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
169 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
170 lwip_send() sends as much as possible for non-blocking sockets
172 2011-07-22: Simon Goldschmidt
173 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
174 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
175 at regular intervals from main level.
177 2011-07-21: Simon Goldschmidt
178 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
179 sending an ARP request when an ARP entry is used in the last minute before
182 2011-07-04: Simon Goldschmidt
183 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
185 2011-06-26: Simon Goldschmidt
186 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
187 updating its documentation only.
189 2011-06-26: Simon Goldschmidt
190 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
193 2011-06-26: Simon Goldschmidt
194 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
202 2011-03-27: Simon Goldschmidt
203 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
204 calculate it in tcp_zero_window_probe (the only place where it was used).
206 2010-11-21: Simon Goldschmidt
207 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
210 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
211 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
212 IP_MULTICAST_LOOP at socket- and raw-API level.
214 2010-06-16: Simon Goldschmidt
215 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
216 link-layer-addressed UDP traffic to be received while a netif is down (just
217 like DHCP during configuration)
219 2010-05-22: Simon Goldschmidt
220 * many many files: bug #27352: removed packing from ip_addr_t, the packed
221 version is now only used in protocol headers. Added global storage for
222 current src/dest IP address while in input functions.
224 2010-05-16: Simon Goldschmidt
225 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
226 calculation (and use them throughout the stack where applicable)
228 2010-05-16: Simon Goldschmidt
229 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
230 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
232 2010-05-16: Simon Goldschmidt
233 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
234 MEMP pool instead of the heap
236 2010-05-13: Simon Goldschmidt
237 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
238 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
239 packets to more than one pcb.
241 2010-05-02: Simon Goldschmidt
242 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
243 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
245 2010-04-30: Simon Goldschmidt
246 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
247 take a precalculated checksum, added pbuf_fill_chksum() to copy data
248 into a pbuf and at the same time calculating the checksum for that data
250 2010-04-29: Simon Goldschmidt
251 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
252 2-byte-aligned IP addresses and MAC addresses
254 2010-04-28: Patch by Bill Auerbach
255 * ip.c: Inline generating IP checksum to save a function call
257 2010-04-14: Simon Goldschmidt
258 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
259 tcpip_thread processes messages or timeouts to implement a watchdog.
261 2010-03-28: Simon Goldschmidt
262 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
263 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
265 2010-03-27: Simon Goldschmidt
266 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
267 etharp_query to prevent unnecessary function calls (inspired by
270 2010-03-20: Simon Goldschmidt
271 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
272 since the linker cannot do this automatically to save space.
274 2010-03-20: Simon Goldschmidt
275 * opt.h, etharp.c/.h: Added support for static ARP table entries
277 2010-03-14: Simon Goldschmidt
278 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
279 when creating TCP segments, not when (re-)transmitting them.
281 2010-03-07: Simon Goldschmidt
282 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
283 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
284 This should speed up receiving data on sockets as the select code in
285 event_callback is only executed when select is waiting.
287 2010-03-06: Simon Goldschmidt
288 * tcp_out.c: task #7013 (Create option to have all packets delivered to
289 netif->output in one piece): Always copy to try to create single pbufs
292 2010-03-06: Simon Goldschmidt
293 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
294 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
295 for tcp netconns to receive pbufs, not netbufs; use that function
298 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
299 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
300 Work on tcp_enqueue: Don't waste memory when chaining segments,
301 added option TCP_OVERSIZE to prevent creating many small pbufs when
302 calling tcp_write with many small blocks of data. Instead, pbufs are
303 allocated larger than needed and the space is used for later calls to
306 2010-02-21: Simon Goldschmidt
307 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
310 2010-02-21: Simon Goldschmidt
311 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
312 implementation of tcp to make API usage cleare to application programmers
314 2010-02-14: Simon Goldschmidt/Stephane Lesage
315 * ip_addr.h: Improved some defines working on ip addresses, added faster
316 macro to copy addresses that cannot be NULL
318 2010-02-13: Simon Goldschmidt
319 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
320 blocking send operation)
322 2010-02-12: Simon Goldschmidt
323 * sockets.c/.h: Added a minimal version of posix fctl() to have a
324 standardised way to set O_NONBLOCK for nonblocking sockets.
326 2010-02-12: Simon Goldschmidt
327 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
328 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
329 and dhcp work with user-allocated structs instead of callin mem_malloc
331 2010-02-12: Simon Goldschmidt/Jeff Barber
332 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
333 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
335 2010-02-12: Simon Goldschmidt
336 * sys layer: task #10139 (Prefer statically allocated memory): converted
337 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
338 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
339 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
340 to let sys.h use binary semaphores instead of mutexes - as before)
342 2010-02-09: Simon Goldschmidt (Simon Kallweit)
343 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
344 (Restart system timeout handling)
346 2010-02-09: Simon Goldschmidt
347 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
348 netif.c) - loopif does not have to be created by the port any more,
349 just define LWIP_HAVE_LOOPIF to 1.
351 2010-02-08: Simon Goldschmidt
352 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
353 inet_ntoa_r/ipaddr_ntoa_r
355 2010-02-08: Simon Goldschmidt
356 * netif.h: Added netif_s/get_igmp_mac_filter() macros
358 2010-02-05: Simon Goldschmidt
359 * netif.h: Added function-like macros to get/set the hostname on a netif
361 2010-02-04: Simon Goldschmidt
362 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
363 make changing the actual implementation behind the typedef easier.
365 2010-02-01: Simon Goldschmidt
366 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
367 for allocating memory when getaddrinfo() is called.
369 2010-01-31: Simon Goldschmidt
370 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
371 them once instead of parsing for every option. This also removes
372 the need for mem_malloc from dhcp_recv and makes it possible to
373 correctly retrieve the BOOTP file.
375 2010-01-30: simon Goldschmidt
376 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
379 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
380 * api.h, api_msg.c, sockets.c: Added except set support in select
383 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
384 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
385 Add non-blocking support for connect (partly from patch #6860),
386 plus many cleanups in socket & netconn API.
388 2010-01-27: Simon Goldschmidt
389 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
390 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
392 2010-01-26: Simon Goldschmidt
393 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
395 2010-01-14: Simon Goldschmidt
396 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
397 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
399 2010-01-13: Simon Goldschmidt
400 * mem.c: The heap now may be moved to user-defined memory by defining
401 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
402 (patch #6966 and bug #26133)
404 2010-01-10: Simon Goldschmidt (Bill Auerbach)
405 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
408 2010-01-10: Simon Goldschmidt
409 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
410 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
412 2009-12-31: Simon Goldschmidt
413 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
414 added timers.c/.h: Separated timer implementation from semaphore/mbox
415 implementation, moved timer implementation to timers.c/.h, timers are
416 now only called from tcpip_thread or by explicitly checking them.
419 2009-12-27: Simon Goldschmidt
420 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
421 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
426 2011-04-20: Simon Goldschmidt
427 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
429 2011-04-13: Simon Goldschmidt
430 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
431 using ports in the IANA private/dynamic range (49152 through 65535).
433 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
434 * etharp.h/.c: Fixed broken VLAN support.
436 2011-03-27: Simon Goldschmidt
437 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
438 pcbs) by checking if the pcb was bound (local_port != 0).
440 2011-03-27: Simon Goldschmidt
441 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
443 2011-03-27: Simon Goldschmidt
444 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
445 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
447 2011-03-27: Simon Goldschmidt
448 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
449 is present never times out) by starting retransmission timer before checking
452 2011-03-22: Simon Goldschmidt
453 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
454 calling sio_read_abort() if the file descriptor is valid.
456 2011-03-14: Simon Goldschmidt
457 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
458 more than once can render a socket useless) since it mainly involves changing
459 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
461 2011-03-13: Simon Goldschmidt
462 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
463 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
464 use EALRADY instead of -1
466 2011-03-13: Simon Goldschmidt
467 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
468 connection has been aborted by err_tcp (since this is not a normal closing
471 2011-03-13: Simon Goldschmidt
472 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
473 with pcb->state != CLOSED
475 2011-02-17: Simon Goldschmidt
476 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
479 2011-02-17: Simon Goldschmidt
480 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
482 2011-01-24: Simon Goldschmidt
483 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
485 2010-12-02: Simon Goldschmidt
486 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
488 2010-11-23: Simon Goldschmidt
489 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
490 LWIP_SO_RCVBUF and ioctl/FIONREAD.
492 2010-11-23: Simon Goldschmidt
493 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
494 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
496 2010-11-23: Simon Goldschmidt
497 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
498 refusing 'refused_data' again.
500 2010-11-22: Simon Goldschmidt
501 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
502 after a successful nonblocking connection.
504 2010-11-22: Simon Goldschmidt
505 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
506 must be sent link-local
508 2010-11-22: Simon Goldschmidt
509 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
512 2010-11-20: Simon Goldschmidt
513 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
515 2010-11-20: Simon Goldschmidt
516 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
517 resemble other stacks.
519 2010-11-20: Simon Goldschmidt
520 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
521 no-copy TCP writes will never succeed.
523 2010-11-20: Simon Goldschmidt
524 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
525 not match documentation: return ERR_ARG instead of ERR_VAL if not
526 initialized or wrong argument.
528 2010-10-20: Simon Goldschmidt
529 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
531 2010-10-05: Simon Goldschmidt
532 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
533 replugging the network cable after an AutoIP address was assigned.
535 2010-08-10: Simon Goldschmidt
536 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
538 2010-08-03: Simon Goldschmidt
539 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
541 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
542 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
543 endian architectures)
545 2010-07-28: Simon Goldschmidt
546 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
549 2010-07-27: Simon Goldschmidt
550 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
551 harm but never did anything
553 2010-07-21: Simon Goldschmidt
554 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
557 2010-07-16: Kieran Mansley
558 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
560 2010-07-10: Simon Goldschmidt
561 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
563 2010-06-30: Simon Goldschmidt
564 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
567 2010-06-28: Kieran Mansley
568 * timers.c remove unportable printing of C function pointers
570 2010-06-24: Simon Goldschmidt
571 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
572 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
574 2010-06-24: Simon Goldschmidt
575 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
576 implemented shutdown at socket level.
578 2010-06-21: Simon Goldschmidt
579 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
580 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
581 custom pbufs that reference other (original) pbufs. Additionally set
582 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
584 2010-06-15: Simon Goldschmidt
585 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
587 2010-06-14: Simon Goldschmidt
588 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
590 2010-06-12: Simon Goldschmidt
591 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
594 2010-05-17: Simon Goldschmidt
595 * netdb.c: Correctly NULL-terminate h_addr_list
597 2010-05-16: Simon Goldschmidt
598 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
599 "symbol already defined" i.e. when linking to winsock
601 2010-05-05: Simon Goldschmidt
602 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
605 2010-04-21: Simon Goldschmidt
606 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
609 2010-03-28: Luca Ceresoli
610 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
612 2010-03-27: Luca Ceresoli
613 * mib2.c: patch #7130: remove meaningless const qualifiers
615 2010-03-26: Simon Goldschmidt
616 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
618 2010-03-26: Simon Goldschmidt
619 * various files: Fixed compiling with different options disabled (TCP/UDP),
620 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
622 2010-03-25: Simon Goldschmidt
623 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
625 2010-03-25: Simon Goldschmidt
626 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
627 overrunning our rcv_wnd in ooseq case.
629 2010-03-22: Simon Goldschmidt
630 * tcp.c: tcp_listen() did not copy the pcb's prio.
632 2010-03-19: Simon Goldschmidt
633 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
635 2010-03-14: Simon Goldschmidt
636 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
637 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
638 and basing PBUF_LINK_HLEN on it.
640 2010-03-08: Simon Goldschmidt
641 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
642 when assiging routable address): when checking incoming packets and
643 aborting existing connection on address change, filter out link-local
646 2010-03-06: Simon Goldschmidt
647 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
649 2010-03-06: Simon Goldschmidt
650 * ipv4/ip.c: Don't try to forward link-local addresses
652 2010-03-06: Simon Goldschmidt
653 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
656 2010-03-05: Simon Goldschmidt
657 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
660 2010-03-05: Simon Goldschmidt
661 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
662 into multiple calls to tcp_write.
664 2010-02-21: Simon Goldschmidt
665 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
666 the implementation of DNS_USES_STATIC_BUF==1)
668 2010-02-20: Simon Goldschmidt
669 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
670 close() vs. shutdown(). Now the application does not get any more
671 recv callbacks after calling tcp_close(). Added tcp_shutdown().
673 2010-02-19: Simon Goldschmidt
674 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
675 confusion with realloc()
677 2010-02-15: Simon Goldschmidt/Stephane Lesage
678 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
681 2010-02-14: Simon Goldschmidt
682 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
683 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
684 admin-status of a netif are up
686 2010-02-14: Simon Goldschmidt
687 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
688 reception and is not really necessary
690 2010-02-14: Simon Goldschmidt
691 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
692 request was directed as us (RFC 826, Packet Reception), otherwise
693 only update existing entries; internalized some functions
695 2010-02-14: Simon Goldschmidt
696 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
697 disabled on netif used for PPPoE) by adding a new netif flag
698 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
699 device but prevents usage of ARP (so that ethernet_input can be used
702 2010-02-12: Simon Goldschmidt
703 * netif.c: netif_set_link_up/down: only do something if the link state
706 2010-02-12: Simon Goldschmidt/Stephane Lesage
707 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
710 2010-02-12: Simon Goldschmidt
711 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
713 2010-02-09: Simon Goldschmidt
714 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
715 (recv() makes receive window update for data that wasn't received by
718 2010-02-09: Simon Goldschmidt/Stephane Lesage
719 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
720 or any netconn_recv() error)
722 2010-02-09: Simon Goldschmidt
723 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
725 2010-02-09: Simon Goldschmidt
726 * netif.c: For loopback packets, adjust the stats- and snmp-counters
727 for the loopback netif.
729 2010-02-08: Simon Goldschmidt
730 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
731 since they are not used anywhere else.
733 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
734 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
735 (patch from bug #28798)
737 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
738 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
739 another bug when LWIP_RAND() returns zero.
741 2010-02-04: Simon Goldschmidt
742 * nearly every file: Use macros defined in ip_addr.h (some of them new)
743 to work with IP addresses (preparation for bug #27352 - Change ip_addr
744 from struct to typedef (u32_t) - and better code).
746 2010-01-31: Simon Goldschmidt
747 * netif.c: Don't call the link-callback from netif_set_up/down() since
748 this invalidly retriggers DHCP.
750 2010-01-29: Simon Goldschmidt
751 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
752 portability file inet.h and its contents from the stack: moved htonX-
753 functions to def.h (and the new def.c - they are not ipv4 dependent),
754 let inet.h depend on ip_addr.h and not the other way round.
755 This fixes bug #28732.
757 2010-01-28: Kieran Mansley
758 * tcp.c: Ensure ssthresh >= 2*MSS
760 2010-01-27: Simon Goldschmidt
761 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
762 callback can lead to accessing unallocated memory. As a consequence,
763 ERR_ABRT means the application has called tcp_abort()!
765 2010-01-25: Simon Goldschmidt
766 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
767 not implemented in SNMP): write-only or not-accessible are still
768 returned by getnext (though not by get)
770 2010-01-24: Simon Goldschmidt
771 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
772 not use reserved C/C++ keywords
774 2010-01-23: Simon Goldschmidt
775 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
778 2010-01-21: Simon Goldschmidt
779 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
780 if tcp_enqueue fails) both in raw- and netconn-API
782 2010-01-19: Simon Goldschmidt
783 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
785 2010-01-18: Iordan Neshev/Simon Goldschmidt
786 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
787 bugfix backports from 2.4.x.
789 2010-01-18: Simon Goldschmidt
790 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
792 2010-01-17: Simon Goldschmidt
793 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
794 task #10102: "netconn: clean up conn->err threading issues" by adding
795 error return value to struct api_msg_msg
797 2010-01-17: Simon Goldschmidt
798 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
799 to return err_t (bugs #27709 and #28087)
801 2010-01-14: Simon Goldschmidt
802 * ...: Use typedef for function prototypes throughout the stack.
804 2010-01-13: Simon Goldschmidt
805 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
806 window = 0) by correctly draining recvmbox/acceptmbox
808 2010-01-11: Simon Goldschmidt
809 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
810 erroneous callbacks) by copying the code from recent pppd
812 2010-01-10: Simon Goldschmidt
813 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
815 2010-01-10: Simon Goldschmidt
816 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
818 2010-01-08: Simon Goldschmidt
819 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
821 2010-01-08: Simon Goldschmidt
822 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
823 passed to dns_local_addhost() might be volatile
825 2010-01-07: Simon Goldschmidt
826 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
828 2010-01-06: Simon Goldschmidt
829 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
831 2009-12-31: Simon Goldschmidt
832 * many ppp files: Reorganised PPP source code from ucip structure to pppd
833 structure to easily compare our code against the pppd code (around v2.3.1)
835 2009-12-27: Simon Goldschmidt
836 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
844 2009-10-27 Simon Goldschmidt/Stephan Lesage
845 * netifapi.c/.h: Added netifapi_netif_set_addr()
847 2009-10-07 Simon Goldschmidt/Fabian Koch
848 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
849 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
851 2009-08-26 Simon Goldschmidt/Simon Kallweit
852 * slipif.c/.h: bug #26397: SLIP polling support
854 2009-08-25 Simon Goldschmidt
855 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
856 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
858 2009-08-25 Simon Goldschmidt
859 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
861 2009-08-24 Jakob Stoklund Olesen
862 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
863 to netif_set_link_up().
865 2009-08-23 Simon Goldschmidt
866 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
867 to a human-readable string.
871 2009-12-24: Kieran Mansley
872 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
875 2009-12-06: Simon Goldschmidt
876 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
877 be statically allocated (like in ucip)
879 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
880 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
882 2009-12-03: Simon Goldschmidt
883 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
884 could have non-zero length
886 2009-12-02: Simon Goldschmidt
887 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
888 tcp_input_pcb until after calling the pcb's callbacks
890 2009-11-29: Simon Goldschmidt
891 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
892 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
894 2009-11-29: Simon Goldschmidt
895 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
896 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
898 2009-11-26: Simon Goldschmidt
899 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
902 2009-11-26: Simon Goldschmidt
903 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
904 algorithm at PCB level
906 2009-11-22: Simon Goldschmidt
907 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
909 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
910 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
911 reusing time-wait pcb
913 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
914 * sockets.c: Fixed bug #28062: Data received directly after accepting
915 does not wake up select
917 2009-11-11: Simon Goldschmidt
918 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
920 2009-10-30: Simon Goldschmidt
921 * opt.h: Increased default value for TCP_MSS to 536, updated default
922 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
924 2009-10-28: Kieran Mansley
925 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
926 to follow algorithm from TCP/IP Illustrated
928 2009-10-27: Kieran Mansley
929 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
931 2009-10-25: Simon Goldschmidt
932 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
933 pcb->recv is NULL to keep rcv_wnd correct)
935 2009-10-25: Simon Goldschmidt
936 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
938 2009-10-23: Simon Goldschmidt (David Empson)
939 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
941 2009-10-21: Simon Goldschmidt
942 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
943 trailing 1 byte len (SYN/FIN)
945 2009-10-21: Simon Goldschmidt
946 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
948 2009-10-19: Simon Goldschmidt
949 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
950 conditional code to assert where applicable), check pbuf length before
951 testing for valid reply
953 2009-10-19: Simon Goldschmidt
954 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
955 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
957 2009-10-16: Simon Goldschmidt
958 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
959 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
962 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
963 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
965 2009-10-15: Simon Goldschmidt
966 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
969 2009-10-15: Simon Goldschmidt
970 * autoip.c: Fixed bug #27704: autoip starts with wrong address
971 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
972 of network byte order
974 2009-10-11 Simon Goldschmidt (Jörg Kesten)
975 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
976 which are not consecutive when retransmitting unacked segments
978 2009-10-09 Simon Goldschmidt
979 * opt.h: Fixed default values of some stats to only be enabled if used
980 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
982 2009-08-30 Simon Goldschmidt
983 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
984 function" by checking for loopback before calling ip_frag
986 2009-08-25 Simon Goldschmidt
987 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
989 2009-08-23 Simon Goldschmidt
990 * ppp.c: bug #27078: Possible memory leak in pppInit()
992 2009-08-23 Simon Goldschmidt
993 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
996 2009-08-23 Simon Goldschmidt
997 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
998 Fixed wrong parenthesis, added check in init.c
1000 2009-08-23 Simon Goldschmidt
1001 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1003 2009-08-23 Simon Goldschmidt
1004 * many ppp files: bug #27267: Added include to string.h where needed
1006 2009-08-23 Simon Goldschmidt
1007 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1014 2009-05-10 Simon Goldschmidt
1015 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1016 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1017 one pbuf to help MACs that don't support scatter-gather DMA.
1019 2009-05-09 Simon Goldschmidt
1020 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1021 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1023 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1024 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1025 extended info about the currently received packet.
1027 2009-04-27 Simon Goldschmidt
1028 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1030 2009-04-25 Simon Goldschmidt
1031 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1032 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1034 2009-04-21 Simon Goldschmidt
1035 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1036 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1037 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1038 as an external function for lookup.
1040 2009-04-15 Simon Goldschmidt
1041 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1043 2009-03-31 Kieran Mansley
1044 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1045 TCP timestamp options, off by default. Rework tcp_enqueue() to
1046 take option flags rather than specified option data
1048 2009-02-18 Simon Goldschmidt
1049 * cc.h: Added printf formatter for size_t: SZT_F
1051 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1052 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1055 2009-02-12 Simon Goldschmidt
1056 * init.h: Added LWIP_VERSION to get the current version of the stack
1058 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1059 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1060 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1063 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1064 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1065 is only used by UDPLITE at present, so conditionalise it.
1067 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1068 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1069 "seed" address. This should reduce AUTOIP conflicts if
1070 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1072 2008-10-02 Jonathan Larmour and Rishi Khan
1073 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1076 2008-06-30 Simon Goldschmidt
1077 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1078 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1079 mem_free to run between mem_malloc iterations. Added illegal counter for
1082 2008-06-27 Simon Goldschmidt
1083 * stats.h/.c, some other files: patch #6483: stats module improvement:
1084 Added defines to display each module's statistic individually, added stats
1085 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1087 2008-06-17 Simon Goldschmidt
1088 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1089 (define LWIP_ERR_T in cc.h)
1091 2008-06-17 Simon Goldschmidt
1092 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1095 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1096 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1097 modified version of patch # 6370: Moved loopif code to netif.c so that
1098 loopback traffic is supported on all netifs (all local IPs).
1099 Added option to limit loopback packets for each netifs.
1103 2009-08-12 Kieran Mansley
1104 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1105 out of window or out of order properly
1107 2009-08-12 Kieran Mansley
1108 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1110 2009-07-28 Simon Goldschmidt
1111 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1113 2009-07-27 Kieran Mansley
1114 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1116 2009-07-09 Kieran Mansley
1117 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1118 recv_avail and don't increment counters until message successfully
1121 2009-06-25 Kieran Mansley
1122 * api_msg.c api.h: BUG26722: initialise netconn write variables
1125 2009-06-25 Kieran Mansley
1126 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1128 2009-06-25 Kieran Mansley
1129 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1130 simultaneous close behaviour, and make snd_nxt have the same meaning
1133 2009-05-12 Simon Goldschmidt
1134 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1135 arp_table / uses etharp_query" by adding etharp_gratuitous()
1137 2009-05-12 Simon Goldschmidt
1138 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1139 to the IP header (used by igmp_ip_output_if)
1141 2009-05-06 Simon Goldschmidt
1142 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1143 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1145 2009-05-05 Simon Goldschmidt
1146 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1149 2009-05-04 Simon Goldschmidt
1150 * init.c: snmp was not initialized in lwip_init()
1152 2009-05-04 Frédéric Bernon
1153 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1155 2009-05-03 Simon Goldschmidt
1156 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1157 (and unsent->next == NULL)
1159 2009-05-02 Simon Goldschmidt
1160 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1161 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1163 2009-05-02 Simon Goldschmidt
1164 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1166 2009-05-01 Simon Goldschmidt
1167 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1169 2009-05-01 Simon Goldschmidt
1170 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1172 2009-04-29 Frédéric Bernon
1173 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1174 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1175 of broadcast packets even when this option wasn't set. Port maintainers
1176 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1177 If you want this option also filter broadcast on recv operations, you also
1178 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1180 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1181 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1182 DHCP/AUTOIP cooperation
1184 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1185 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1186 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1187 right place in tcp_output and tcp_rexmit).
1189 2009-04-25 Simon Goldschmidt
1190 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1191 when debugging": memp_sizes contained the wrong sizes (including sanity
1192 regions); memp pools for MEM_USE_POOLS were too small
1194 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1195 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1196 behavior, with with ip address string not ended by a '\0', a space or a
1199 2009-04-19 Simon Goldschmidt
1200 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1201 pcb->err is called, not pcb->connected (with an error code).
1203 2009-04-19 Simon Goldschmidt
1204 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1205 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1207 2009-04-19 Simon Goldschmidt
1208 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1209 in the header pbuf, not the data pbuf)
1211 2009-04-18 Simon Goldschmidt
1212 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1214 2009-04-15 Simon Goldschmidt
1215 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1217 2009-04-15 Simon Goldschmidt
1218 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1220 2009-04-15 Simon Goldschmidt
1221 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1222 ip_hinted_output() (for smaller code mainly)
1224 2009-04-15 Simon Goldschmidt
1225 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1227 2009-04-15 Simon Goldschmidt
1228 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1229 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1230 is big enough in dhcp_start
1232 2009-04-15 Simon Goldschmidt
1233 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1235 2009-04-15 Simon Goldschmidt
1236 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1238 2009-04-15 Simon Goldschmidt
1239 * sockets.c: bug #26121: set_errno can be overridden
1241 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1242 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1245 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1246 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1249 2009-03-31 Kieran Mansley
1250 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1251 updates are calculated and sent (BUG20515)
1253 * tcp_in.c: cope with SYN packets received during established states,
1254 and retransmission of initial SYN.
1256 * tcp_out.c: set push bit correctly when tcp segments are merged
1258 2009-03-27 Kieran Mansley
1259 * tcp_out.c set window correctly on probes (correcting change made
1262 2009-03-26 Kieran Mansley
1263 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1264 connections where no reset required (bug #25622)
1266 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1269 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1270 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1271 too small depending on MEM_ALIGNMENT
1273 2009-02-16 Simon Goldschmidt
1274 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1275 converted size argument of netconn_write to 'size_t'
1277 2009-02-16 Simon Goldschmidt
1278 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1279 by moving accept callback function pointer to TCP_PCB_COMMON
1281 2009-02-12 Simon Goldschmidt
1282 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1285 2009-02-11 Simon Goldschmidt
1286 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1288 2009-02-11 Simon Goldschmidt
1289 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1290 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1292 2009-02-10 Simon Goldschmidt
1293 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1294 Accepts_pending is decrease on a corresponding listen pcb when a connection
1295 in state SYN_RCVD is close.
1297 2009-01-28 Jonathan Larmour
1298 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1301 2008-12-19 Simon Goldschmidt
1302 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1304 2008-12-10 Tamas Somogyi, Frédéric Bernon
1305 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1306 port uses deleted netbuf.
1308 2008-10-18 Simon Goldschmidt
1309 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1312 2008-10-15 Simon Goldschmidt
1313 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1314 by packing the struct ip_reass_helper.
1316 2008-10-03 David Woodhouse, Jonathan Larmour
1317 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1319 2008-10-02 Jonathan Larmour
1320 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1321 padding is included.
1323 2008-09-30 Jonathan Larmour
1324 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1325 assertion check that addrlen isn't NULL.
1327 2008-09-30 Jonathan Larmour
1328 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1330 2008-08-26 Simon Goldschmidt
1331 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1332 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1334 2008-08-14 Simon Goldschmidt
1335 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1336 tcp_close returns != ERR_OK)
1338 2008-07-08 Frédéric Bernon
1339 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1340 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1342 2008-06-24 Jonathan Larmour
1343 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1344 if tcp_seg_copy fails.
1346 2008-06-17 Simon Goldschmidt
1347 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1348 and created defines for swapping bytes and folding u32 to u16.
1350 2008-05-30 Kieran Mansley
1351 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1352 rather than rcv_ann_wnd when deciding if packets are in-window.
1353 Contributed by <arasmussen@consultant.datasys.swri.edu>
1355 2008-05-30 Kieran Mansley
1356 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1357 passing as function pointers when MEM_LIBC_MALLOC is defined.
1359 2008-05-09 Jonathan Larmour
1360 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1361 stop it being treated as a fatal error.
1363 2008-04-15 Simon Goldschmidt
1364 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1367 2008-03-27 Simon Goldschmidt
1368 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1369 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1370 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1371 or heap memory from interrupt context
1373 2008-03-26 Simon Goldschmidt
1374 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1375 host sent a zero mss as TCP option.
1382 2008-03-10 Jonathan Larmour
1383 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1384 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1386 2008-01-22 Frédéric Bernon
1387 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1388 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1390 2008-01-14 Frédéric Bernon
1391 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1392 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1393 tcp_recv callback (see rawapi.txt).
1395 2008-01-14 Frédéric Bernon, Marc Chaland
1396 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1398 2008-01-12 Frédéric Bernon
1399 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1400 netconn::sem per netconn::op_completed like suggested for the task #7490
1401 "Add return value to sys_mbox_post".
1403 2008-01-12 Frédéric Bernon
1404 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1405 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1406 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1408 2008-01-10 Frédéric Bernon
1409 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1410 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1411 "blocking" ("block" parameter = 1).
1413 2008-01-10 Frédéric Bernon
1414 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1415 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1416 "Add return value to sys_mbox_post".
1418 2008-01-05 Frédéric Bernon
1419 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1420 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1421 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1422 indicate the number of pointers query by the mailbox. There is three defines
1423 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1424 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1425 parameter in your implementation, but to ignore it to keep the previous behavior.
1426 The new sys_mbox_trypost function return a value to know if the mailbox is
1427 full or if the message is posted. Take a look to sys_arch.txt for more details.
1428 This new function is used in tcpip_input (so, can be called in an interrupt
1429 context since the function is not blocking), and in recv_udp and recv_raw.
1431 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1432 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1433 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1434 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1435 documentation in the rawapi.txt file.
1437 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1438 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1440 2007-12-31 Frédéric Bernon, Luca Ceresoli
1441 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1442 in autoip". The change in etharp_raw could be removed, since all calls to
1443 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1444 wrong in the future.
1446 2007-12-30 Frédéric Bernon, Tom Evans
1447 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1448 Filtering" reported by Tom Evans.
1450 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1451 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1452 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1453 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1454 keep accepting new connections.
1456 2007-12-13 Frédéric Bernon
1457 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1458 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1460 2007-12-12 Frédéric Bernon
1461 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1462 are the one which have ram usage.
1464 2007-12-05 Frédéric Bernon
1465 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1466 set of variables (=0) or a local one (=1). In this last case, your port should
1467 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1468 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1470 2007-12-03 Simon Goldschmidt
1471 * ip.c: ip_input: check if a packet is for inp first before checking all other
1472 netifs on netif_list (speeds up packet receiving in most cases)
1474 2007-11-30 Simon Goldschmidt
1475 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1476 UDP: move a (connected) pcb selected for input to the front of the list of
1477 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1480 2007-11-28 Simon Goldschmidt
1481 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1483 2007-11-25 Simon Goldschmidt
1484 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1487 2007-11-24 Simon Goldschmidt
1488 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1489 to the new file netdb.c; included lwip_getaddrinfo.
1491 2007-11-21 Simon Goldschmidt
1492 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1493 based on the MTU of the netif used to send. Enabled by default. Disable by
1494 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1496 2007-11-19 Frédéric Bernon
1497 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1498 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1499 copy dns payload to parse the response), return an error if there is no place
1500 for a new query, and fix some minor problems.
1502 2007-11-16 Simon Goldschmidt
1503 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1504 removed files: core/inet.c, core/inet6.c
1505 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1506 inet and chksum part; changed includes in all lwIP files as appropriate
1508 2007-11-16 Simon Goldschmidt
1509 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1510 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1511 (gethostbyname/gethostbyname_r).
1513 2007-11-15 Jim Pettinato, Frédéric Bernon
1514 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1515 requests with RAW api interface. Initialization is done in lwip_init() with
1516 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1517 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1518 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1519 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1520 list with points to improve.
1522 2007-11-06 Simon Goldschmidt
1523 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1524 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1525 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1527 2007-11-06 Simon Goldschmidt
1528 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1529 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1530 implementation from netconn api applications.
1532 2007-11-03 Frédéric Bernon
1533 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1534 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1535 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1536 it. This is a first release which have to be improve for TCP. Note it used the
1537 netconn::recv_avail which need to be more "thread-safe" (note there is already
1538 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1540 2007-11-01 Frédéric Bernon, Marc Chaland
1541 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1542 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1543 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1544 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1545 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1547 2007-10-24 Frédéric Bernon
1548 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1549 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1550 some code (like we have talk in "patch #5919 : Create compile switch to remove
1551 select code"), but it could be done later.
1553 2007-10-08 Simon Goldschmidt
1554 * many files: Changed initialization: many init functions are not needed any
1555 more since we now rely on the compiler initializing global and static
1558 2007-10-06 Simon Goldschmidt
1559 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1560 to enqueue the received pbufs so that multiple packets can be reassembled
1561 simultaneously and no static reassembly buffer is needed.
1563 2007-10-05 Simon Goldschmidt
1564 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1565 all netifs (or ports) can use it.
1567 2007-10-05 Frédéric Bernon
1568 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1569 common function to reduce a little bit the footprint (for all functions using
1570 only the "netif" parameter).
1572 2007-10-03 Frédéric Bernon
1573 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1574 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1575 a little bit the footprint (for all functions using only the "netif" parameter).
1577 2007-09-15 Frédéric Bernon
1578 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1579 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1580 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1581 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1583 2007-09-10 Frédéric Bernon
1584 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1585 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1586 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1587 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1588 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1589 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1590 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1591 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1592 when it's queried (any direct call to "sysuptime" is changed by a call to
1593 snmp_get_sysuptime).
1595 2007-09-09 Frédéric Bernon, Bill Florac
1596 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1597 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1598 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1599 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1600 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1601 the next query message to receive the matching multicast streams).
1603 2007-09-08 Frédéric Bernon
1604 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1605 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1606 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1607 Enable to access to these fields with LWIP_TCP=0.
1609 2007-09-05 Frédéric Bernon
1610 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1611 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1612 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1613 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1614 help to reduce footprint, and to reduce "visibility" on the Internet.
1616 2007-09-05 Frédéric Bernon, Bill Florac
1617 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1618 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1619 parameters have to be provided: a task name, and a task stack size. For this
1620 one, since it's platform dependant, you could define the best one for you in
1621 your lwipopts.h. For port maintainers, you can just add these new parameters
1622 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1625 2007-09-05 Frédéric Bernon
1626 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1627 inside init.c for task #7142 "Sanity check user-configurable values".
1629 2007-09-04 Frédéric Bernon, Bill Florac
1630 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1631 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1632 value). It will avoid potential fragmentation problems, use a counter to know
1633 how many times a group is used on an netif, and free it when all applications
1634 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1635 check if LWIP_IGMP!=0).
1637 2007-09-03 Frédéric Bernon
1638 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1639 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1640 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1641 and/or the "interface" field (for netconn layer), for join/leave operations.
1642 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1643 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1645 2007-08-30 Frédéric Bernon
1646 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1647 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1648 with other API (application based on raw API, or future "socket2" API). Ports
1649 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1651 2007-08-30 Frédéric Bernon, Jonathan Larmour
1652 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1653 user-configurable values".
1655 2007-08-29 Frédéric Bernon
1656 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1657 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1658 spirit than the others modules. Modify some IGMP debug traces.
1660 2007-08-29 Frédéric Bernon
1661 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1662 Add lwip_init function to regroup all modules initializations, and to provide
1663 a place to add code for task #7142 "Sanity check user-configurable values".
1664 Ports maintainers should remove direct initializations calls from their code,
1665 and add init.c in their makefiles. Note that lwip_init() function is called
1666 inside tcpip_init, but can also be used by raw api users since all calls are
1667 disabled when matching options are disabled. Also note that their is new options
1668 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1670 2007-08-26 Marc Boucher
1671 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1672 since they can under certain circumstances be called with an invalid conn
1673 pointer after the connection has been closed (and conn has been freed).
1675 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1676 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1677 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1679 2007-08-22 Frédéric Bernon
1680 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1681 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1683 2007-08-22 Frédéric Bernon
1684 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1685 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1686 name is tcpip_input (we keep the name of 1.2.0 function).
1688 2007-08-17 Jared Grubb
1689 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1690 settings into new memp_std.h and optional user file lwippools.h. This adds
1691 more dynamic mempools, and allows the user to create an arbitrary number of
1692 mempools for mem_malloc.
1694 2007-08-16 Marc Boucher
1695 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1696 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1697 close the connection.
1699 2007-08-16 Marc Boucher
1700 * sockets.c: lwip_accept(): check netconn_peer() error return.
1702 2007-08-16 Marc Boucher
1703 * mem.c, mem.h: Added mem_calloc().
1705 2007-08-16 Marc Boucher
1706 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1707 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1708 and starving other message types.
1709 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1711 2007-08-16 Marc Boucher
1712 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1713 type and flgs (later renamed to flags).
1714 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1715 Improved lwip_recvfrom(). TCP push now propagated.
1717 2007-08-16 Marc Boucher
1718 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1721 2007-08-16 Marc Boucher
1722 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1723 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1724 Added PPPoE support and various PPP improvements.
1726 2007-07-25 Simon Goldschmidt
1727 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1728 making netbuf_copy_partial use this function.
1730 2007-07-25 Simon Goldschmidt
1731 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1732 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1735 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1736 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1737 a link callback in the netif struct, and functions to handle it. Be carefull
1738 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1739 if you want to be sure to be compatible with future changes...
1741 2007-06-30 Frédéric Bernon
1742 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1744 2007-06-21 Simon Goldschmidt
1745 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1746 LWIP_AUTOIP =0 and =1 to remove redundant code.
1748 2007-06-21 Simon Goldschmidt
1749 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1750 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1751 heap. This both prevents memory fragmentation and gives a higher speed
1752 at the cost of more memory consumption. Turned off by default.
1754 2007-06-21 Simon Goldschmidt
1755 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1756 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1757 int to be able to send a bigger buffer than 64K with one time (mainly
1758 used from lwip_send).
1760 2007-06-21 Simon Goldschmidt
1761 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1762 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1764 2007-06-21 Simon Goldschmidt
1765 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1766 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1767 changes on low memory or empty send-buffer.
1769 2007-06-18 Simon Goldschmidt
1770 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1771 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1772 used for ethernet and struct eth_addr already had a defined length of 6).
1774 2007-06-17 Simon Goldschmidt
1775 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1776 to disable UDP checksum generation on transmit.
1778 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1779 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1780 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1781 this macro to check "conn" parameter in api_msg.c functions.
1783 2007-06-11 Simon Goldschmidt
1784 * sockets.c, sockets.h: Added UDP lite support for sockets
1786 2007-06-10 Simon Goldschmidt
1787 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1788 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1791 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1792 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1793 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1794 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1795 (see TODO mark in the source code).
1797 2007-06-09 Simon Goldschmidt
1798 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1799 etharp_output() to match netif->output so etharp_output() can be used
1800 directly as netif->output to save one function call.
1802 2007-06-08 Simon Goldschmidt
1803 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1804 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1805 added initialization of those to ethernetif, slipif and loopif.
1807 2007-05-18 Simon Goldschmidt
1808 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1809 (defaulting to off for now) that can be set to 0 to send fragmented
1810 packets by passing PBUF_REFs down the stack.
1812 2007-05-23 Frédéric Bernon
1813 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1814 connections, such present in patch #5959.
1816 2007-05-23 Frédéric Bernon
1817 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1818 code in only one part...
1820 2007-05-18 Simon Goldschmidt
1821 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1822 elements to overflow. This is achieved by adding some bytes before and after
1823 each pool element (increasing their size, of course), filling them with a
1824 prominent value and checking them on freeing the element.
1825 Set it to 2 to also check every element in every pool each time memp_malloc()
1826 or memp_free() is called (slower but more helpful).
1828 2007-05-10 Simon Goldschmidt
1829 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1830 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1833 2007-05-11 Frédéric Bernon
1834 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1835 Include a function pointer instead of a table index in the message to reduce
1836 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1837 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1839 2007-05-10 Simon Goldschmidt
1840 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1841 \ extern "C" {' in all header files. Now you can write your application using
1842 the lwIP stack in C++ and simply #include the core files. Note I have left
1843 out the netif/ppp/*h header files for now, since I don't know which files are
1844 included by applications and which are for internal use only.
1846 2007-05-09 Simon Goldschmidt
1847 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1848 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1849 situations where some compilers might inline the copy and save a function
1850 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1852 2007-05-08 Simon Goldschmidt
1853 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1854 to be overriden in case the C-library malloc implementation is not protected
1855 against concurrent access.
1857 2007-05-04 Simon Goldschmidt (Atte Kojo)
1858 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1859 multiple packets to the same host.
1861 2007-05-04 Frédéric Bernon, Jonathan Larmour
1862 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1863 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1864 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1865 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1866 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1867 these fields are now renamed "addr" & "port".
1869 2007-04-11 Jonathan Larmour
1870 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1871 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1872 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1873 by the port in sys_arch.h if desired.
1875 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1876 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1877 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1878 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1880 2007-04-05 Frédéric Bernon
1881 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1883 2007-04-04 Simon Goldschmidt
1884 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1885 use this for and architecture-independent form to tell the compiler you intentionally
1886 are not using this variable. Can be overriden in cc.h.
1888 2007-03-28 Frédéric Bernon
1889 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1890 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1891 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1892 It will be used by DHCP to register a client hostname, but can also be use when you call
1895 2007-03-28 Frédéric Bernon
1896 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1897 initialize a network interface's flag with. It tell this interface is an ethernet
1898 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1899 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1901 2007-03-26 Frédéric Bernon, Jonathan Larmour
1902 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1903 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1904 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1905 is done in tcpip_init function.
1907 2007-03-22 Frédéric Bernon
1908 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1909 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1910 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1911 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1912 but never used. Fix msg_in.c with the correct #if test for a stat display.
1914 2007-03-21 Kieran Mansley
1915 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1916 Provides callback on netif up/down state change.
1918 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1919 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1920 ip.c, netif.h, tcpip.c, opt.h:
1921 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1922 filter per all network interfaces. Declare a new function in netif to enable to
1923 control the MAC filter (to reduce lwIP traffic processing).
1925 2007-03-11 Frédéric Bernon
1926 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1927 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1928 unless you know what you're doing (default are RFC1122 compliant). Note
1929 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1931 2007-03-08 Frédéric Bernon
1932 * tcp.h: Keepalive values can be configured at compile time, but don't change
1933 this unless you know what you're doing (default are RFC1122 compliant).
1935 2007-03-08 Frédéric Bernon
1936 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1937 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1938 on UDP sockets/netconn.
1940 2007-03-08 Simon Goldschmidt
1941 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1943 2007-03-06 Frédéric Bernon
1944 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1945 Implement SO_RCVTIMEO on UDP sockets/netconn.
1947 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1948 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1949 on the stack and remove the API msg type from memp
1951 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1952 * sockets.h, sockets.c: Move socket initialization to new
1953 lwip_socket_init() function.
1954 NOTE: this changes the API with ports. Ports will have to be
1955 updated to call lwip_socket_init() now.
1957 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1958 * api_lib.c: Use memcpy in netbuf_copy_partial.
1963 2008-03-17 Frédéric Bernon, Ed Kerekes
1964 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1965 some problems to fill the IP header on some targets, use now the
1966 ip.h macros to do it).
1968 2008-03-13 Frédéric Bernon
1969 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1970 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1971 TCP connection caused a crash. Note that using (lwip_)recvfrom
1972 like this is a bit slow and that using (lwip)getpeername is the
1973 good lwip way to do it (so, using recv is faster on tcp sockets).
1975 2008-03-12 Frédéric Bernon, Jonathan Larmour
1976 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1977 recv_raw() does not consume data", and the ping sample (with
1978 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1979 returned the IP payload, without the IP header).
1981 2008-03-04 Jonathan Larmour
1982 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1983 and/or warnings on some systems where mem_size_t and size_t differ.
1984 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1986 2008-03-04 Kieran Mansley (contributions by others)
1987 * Numerous small compiler error/warning fixes from contributions to
1988 mailing list after 1.3.0 release candidate made.
1990 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1991 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1993 2008-01-15 Kieran Mansley
1994 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1995 prevented from sending by a small send window, not just a zero
1998 2008-01-09 Jonathan Larmour
1999 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2000 conflict with Linux system headers.
2002 2008-01-06 Jonathan Larmour
2003 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2004 address entirely on receiving a DHCPNAK, and restarting discovery.
2006 2007-12-21 Simon Goldschmidt
2007 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2008 is not protected" by using new macros for interlocked access to modify/test
2009 netconn->recv_avail.
2011 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2012 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2014 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2015 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2016 of silly window avoidance and prevent lwIP from shrinking the window)
2018 2007-12-04 Simon Goldschmidt
2019 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2020 data packet was lost): add assert that all segment lists are empty in
2021 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2022 state from LAST_ACK in tcp_process
2024 2007-12-02 Simon Goldschmidt
2025 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2026 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2027 has to be set to 0 in lwipopts.h
2029 2007-12-02 Simon Goldschmidt
2030 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2031 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2032 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2033 This is a fix for thread-safety and allocates all items needed for a netconn
2034 when the netconn is created.
2036 2007-11-30 Simon Goldschmidt
2037 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2038 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2039 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2040 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2042 2007-11-27 Simon Goldschmidt
2043 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2044 letting ip_route only use netifs that are up.
2046 2007-11-27 Simon Goldschmidt
2047 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2048 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2049 sockets block most operations once they have seen a fatal error.
2051 2007-11-27 Simon Goldschmidt
2052 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2053 netif to send as an argument (to be able to send on netifs that are down).
2055 2007-11-26 Simon Goldschmidt
2056 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2059 2007-11-21 Simon Goldschmidt
2060 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2061 Fixed the nagle algorithm; nagle now also works for all raw API applications
2062 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2064 2007-11-12 Frédéric Bernon
2065 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2066 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2067 context in do_getaddr.
2069 2007-11-10 Simon Goldschmidt
2070 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2071 happen any time). Now the packet simply isn't enqueued when out of memory.
2073 2007-11-01 Simon Goldschmidt
2074 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2075 TCP_MSS if that is smaller) as long as no MSS option is received from the
2078 2007-11-01 Simon Goldschmidt
2079 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2080 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2081 sending our configured TCP_MSS instead of the one received).
2083 2007-11-01 Simon Goldschmidt
2084 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2085 calculated based on the configured TCP_MSS, not on the MSS option received
2088 2007-10-09 Simon Goldschmidt
2089 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2090 short and also was generated wrong if checksum coverage != tot_len;
2091 receive: checksum was calculated wrong if checksum coverage != tot_len
2093 2007-10-08 Simon Goldschmidt
2094 * mem.c: lfree was not updated in mem_realloc!
2096 2007-10-07 Frédéric Bernon
2097 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2098 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2099 this change cause an API breakage for netconn_addr, since a parameter
2100 type change. Any compiler should cause an error without any changes in
2101 yours netconn_peer calls (so, it can't be a "silent change"). It also
2102 reduce a little bit the footprint for socket layer (lwip_getpeername &
2103 lwip_getsockname use now a common lwip_getaddrname function since
2104 netconn_peer & netconn_addr have the same parameters).
2106 2007-09-20 Simon Goldschmidt
2107 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2108 by checking tcp_tw_pcbs also
2110 2007-09-19 Simon Goldschmidt
2111 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2113 2007-09-15 Mike Kleshov
2114 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2116 2007-09-06 Frédéric Bernon
2117 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2118 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2119 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2120 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2122 2007-08-30 Frédéric Bernon
2123 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2124 and fix some coding style.
2126 2007-08-28 Frédéric Bernon
2127 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2128 kind of packets. These packets are considered like Ethernet packets (payload
2129 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2130 are considered like IP packets (payload pointing to iphdr).
2132 2007-08-27 Frédéric Bernon
2133 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2134 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2135 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2137 2007-08-24 Kieran Mansley
2138 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2139 compiler (Paradigm C++)
2141 2007-08-09 Frédéric Bernon, Bill Florac
2142 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2143 Introduce IGMP_STATS to centralize statistics management.
2145 2007-08-09 Frédéric Bernon, Bill Florac
2146 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2147 packet on a udp pcb binded on an netif's IP address, and not on "any".
2149 2007-08-09 Frédéric Bernon, Bill Florac
2150 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2151 This is mainly on using lookup/lookfor, and some coding styles...
2153 2007-07-26 Frédéric Bernon (and "thedoctor")
2154 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2156 2007-07-25 Simon Goldschmidt
2157 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2158 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2159 (tcp_output is called again later from tcp timers).
2161 2007-07-25 Simon Goldschmidt
2162 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2163 copy_from_pbuf, which illegally modified the given pbuf.
2165 2007-07-25 Simon Goldschmidt
2166 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2167 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2169 2007-07-24 Simon Goldschmidt
2170 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2171 correct state (must be CLOSED).
2173 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2174 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2175 allocation. It now returns NULL.
2177 2007-07-13 Frédéric Bernon
2178 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2181 2007-07-13 Frédéric Bernon
2182 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2183 because current code doesn't follow rawapi.txt documentation.
2185 2007-07-13 Kieran Mansley
2186 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2187 out of sequence processing of received packets
2189 2007-07-03 Simon Goldschmidt
2190 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2191 assumption is made that this pbuf is in one piece (i.e. not chained). These
2192 assumptions clash with the possibility of converting to fully pool-based
2193 pbuf implementations, where PBUF_RAM pbufs might be chained.
2195 2007-07-03 Simon Goldschmidt
2196 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2197 when closing tcp netconns: removed conn->sem, less context switches when
2198 closing, both netconn_close and netconn_delete should safely close tcp
2201 2007-07-02 Simon Goldschmidt
2202 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2203 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2204 to cache ARP table indices with each pcb instead of single-entry cache for
2207 2007-07-02 Simon Goldschmidt
2208 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2209 warnings when assigning to smaller types.
2211 2007-06-28 Simon Goldschmidt
2212 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2214 2007-06-28 Simon Goldschmidt
2215 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2216 a segment contained chained pbufs)
2218 2007-06-28 Frédéric Bernon
2219 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2220 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2221 possible to define this macro in your own lwipopts.h to always use C library's
2222 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2224 2007-06-28 Frédéric Bernon
2225 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2226 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2227 in api_lib/api_msg (use pointers and not type with table, etc...)
2229 2007-06-26 Simon Goldschmidt
2230 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2232 2007-06-25 Simon Goldschmidt
2233 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2234 for udp packets with no matching pcb.
2236 2007-06-25 Simon Goldschmidt
2237 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2238 could get udp input packets if the remote side matched.
2240 2007-06-13 Simon Goldschmidt
2241 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2242 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2244 2007-06-13 Simon Goldschmidt
2245 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2246 -> netconn_new_..() does not allocate a new connection for unsupported
2249 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2250 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2251 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2253 2007-06-13 Frédéric Bernon, Matthias Weisser
2254 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2255 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2256 some macro names collision with some OS macros.
2258 2007-06-11 Simon Goldschmidt
2259 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2260 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2261 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2264 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2265 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2266 where TCP flags wasn't initialized in tcp_keepalive.
2268 2007-06-03 Simon Goldschmidt
2269 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2270 registered, p->payload was modified without modifying p->len if sending
2271 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2273 2007-06-03 Simon Goldschmidt
2274 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2275 re-used the input pbuf even if that didn't have enough space to include the
2276 link headers. Now the space is tested and a new pbuf is allocated for the
2277 echo response packet if the echo request pbuf isn't big enough.
2279 2007-06-01 Simon Goldschmidt
2280 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2282 2007-05-23 Frédéric Bernon
2283 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2284 allocated by do_listen if success) and netconn_accept errors handling. In
2285 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2286 by ASSERT, except for netconn_delete.
2288 2007-05-23 Frédéric Bernon
2289 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2290 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2291 directly close the recvmbox).
2293 2007-05-22 Simon Goldschmidt
2294 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2295 bound but unconnected (and non-listening) tcp_pcbs.
2297 2007-05-22 Frédéric Bernon
2298 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2299 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2300 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2301 like "sys_timeout" in their application threads.
2303 2007-05-22 Frédéric Bernon
2304 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2305 which parameters are used by which do_xxx function, and to avoid "misusing"
2306 parameters (patch #5938).
2308 2007-05-22 Simon Goldschmidt
2309 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2310 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2311 is only 8 bits wide. This affects the api, as there, the protocol was
2314 2007-05-18 Simon Goldschmidt
2315 * memp.c: addition to patch #5913: smaller pointer was returned but
2316 memp_memory was the same size -> did not save memory.
2318 2007-05-16 Simon Goldschmidt
2319 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2322 2007-05-16 Simon Goldschmidt
2323 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2324 as the one of the netif used for sending to prevent sending from old
2325 addresses after a netif address gets changed (partly fixes bug #3168).
2327 2007-05-16 Frédéric Bernon
2328 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2329 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2330 tcpip_init) because we have to be sure that network interfaces are already
2331 added (mac filter is updated only in igmp_init for the moment).
2333 2007-05-16 Simon Goldschmidt
2334 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2335 into sys_arch_sem_wait calls to prevent timers from running while waiting
2336 for the heap. This fixes bug #19167.
2338 2007-05-13 Simon Goldschmidt
2339 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2340 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2343 2007-05-07 Simon Goldschmidt
2344 * mem.c: Another attempt to fix bug #17922.
2346 2007-05-04 Simon Goldschmidt
2347 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2348 implementation so that it can be reused (don't allocate the target
2349 pbuf inside pbuf_copy()).
2351 2007-05-04 Simon Goldschmidt
2352 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2353 to save a little RAM (next pointer of memp is not used while not in pool).
2356 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2359 2007-04-23 Simon Goldschmidt
2360 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2361 in NULL reference for incoming TCP packets". Loopif has to be configured
2362 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2363 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2364 putting packets on a list that is fed to the stack by calling loopif_poll()
2365 (single-thread / NO_SYS / polling environment where e.g.
2366 netif->input() = ip_input).
2368 2007-04-17 Jonathan Larmour
2369 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2370 the difference between two u16_t's.
2371 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2372 MEMP_NUM_NETCONN in sockets.c right now.
2374 2007-04-12 Jonathan Larmour
2375 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2377 2007-04-12 Kieran Mansley
2378 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2379 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2381 2007-04-11 Simon Goldschmidt
2382 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2383 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2384 pbuf.c: removed functions no needed any more (by etharp).
2386 2007-04-11 Kieran Mansley
2387 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2388 "Constant is long" warnings with 16bit compilers. Contributed by
2389 avatar@mmlab.cse.yzu.edu.tw
2391 2007-04-05 Frédéric Bernon, Jonathan Larmour
2392 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2393 the mailbox is active". Now, the post is only done during a connect, and do_send,
2394 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2396 2007-04-03 Frédéric Bernon
2397 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2398 packets. See patch #5834.
2400 2007-03-30 Frédéric Bernon
2401 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2402 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2404 2007-03-30 Frédéric Bernon
2405 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2406 others environment defines (these were too "generic").
2408 2007-03-28 Frédéric Bernon
2409 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2410 result and can cause a crash. lwip_send now check netbuf_ref result.
2412 2007-03-28 Simon Goldschmidt
2413 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2414 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2415 defined. This is the way it should have been already (looking at
2418 2007-03-28 Kieran Mansley
2419 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2420 IP and TCP headers *and* physical link headers
2422 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2423 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2424 to send some garbage. It is not a definitive solution, but the patch does solve
2425 the problem for most cases.
2427 2007-03-22 Frédéric Bernon
2428 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2430 2007-03-22 Frédéric Bernon
2431 * api_lib.c: somes resources couldn't be freed if there was errors during
2432 netconn_new_with_proto_and_callback.
2434 2007-03-22 Frédéric Bernon
2435 * ethernetif.c: update netif->input calls to check return value. In older ports,
2436 it's a good idea to upgrade them, even if before, there could be another problem
2437 (access to an uninitialized mailbox).
2439 2007-03-21 Simon Goldschmidt
2440 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2441 by casting to unsigned).
2443 2007-03-21 Frédéric Bernon
2444 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2445 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2446 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2447 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2448 faster and more reliable communication between api_lib and tcpip.
2450 2007-03-21 Frédéric Bernon
2451 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2453 2007-03-21 Frédéric Bernon
2454 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2456 2007-03-21 Kieran Mansley
2457 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2460 2007-03-21 Kieran Mansley
2461 * Fix all uses of pbuf_header to check the return value. In some
2462 cases just assert if it fails as I'm not sure how to fix them, but
2463 this is no worse than before when they would carry on regardless
2466 2007-03-21 Kieran Mansley
2467 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2468 comment out missing header include in icmp.c
2470 2007-03-20 Frédéric Bernon
2471 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2472 synchronized with memp.h.
2474 2007-03-20 Frédéric Bernon
2475 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2476 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2477 network interfaces. Also fix a compiler warning.
2479 2007-03-20 Kieran Mansley
2480 * udp.c: Only try and use pbuf_header() to make space for headers if
2481 not a ROM or REF pbuf.
2483 2007-03-19 Frédéric Bernon
2484 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2487 2007-03-19 Frédéric Bernon
2488 * Remove unimplemented "memp_realloc" function from memp.h.
2490 2007-03-11 Simon Goldschmidt
2491 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2494 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2495 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2496 (missing `const' qualifier in socket functions), to get more compatible to
2497 standard POSIX sockets.
2499 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2500 * sockets.c: Add asserts inside bind, connect and sendto to check input
2501 parameters. Remove excessive set_errno() calls after get_socket(), because
2502 errno is set inside of get_socket(). Move last sock_set_errno() inside
2505 2007-03-09 Simon Goldschmidt
2506 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2507 was allocated too small.
2509 2007-03-06 Simon Goldschmidt
2510 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2511 the stack from concurrent access.
2513 2007-03-06 Frédéric Bernon, Dmitry Potapov
2514 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2515 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2517 2007-03-06 Simon Goldschmidt
2518 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2519 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2521 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2522 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2523 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2524 Allow to do ARP processing for incoming packets inside tcpip_thread
2525 (protecting ARP layer against concurrent access). You can also disable
2526 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2527 Older ports have to use tcpip_ethinput.
2529 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2530 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2531 from pointer target type"
2533 2007-03-05 Frédéric Bernon
2534 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2535 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2537 2007-03-04 Frédéric Bernon
2538 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2541 2007-03-04 Frédéric Bernon
2542 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2544 The api_msg struct stay on the stack (not moved to netconn struct).
2546 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2547 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2548 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2549 Also fixed cast warning in pbuf_alloc()
2551 2007-03-04 Simon Goldschmidt
2552 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2553 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2555 2007-03-03 Frédéric Bernon
2556 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2557 It is static, and never used in udp.c except udp_init().
2559 2007-03-02 Simon Goldschmidt
2560 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2561 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2562 initialized before tcpip_thread is running (e.g. before OS is started)
2564 2007-03-02 Frédéric Bernon
2565 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2568 2007-02-28 Kieran Mansley
2569 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2570 outside the region of the pbuf by pbuf_header()
2572 2007-02-28 Kieran Mansley
2573 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2574 when supplied timeout is also non-zero
2578 2006-12-05 Leon Woestenberg
2579 * CHANGELOG: Mention STABLE-1.2.0 release.
2583 2006-12-01 Christiaan Simons
2584 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2585 Note this is a workaround. Currently I have no other options left.
2587 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2588 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2589 to include/lwip/opt.h.
2590 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2591 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2592 * opt.h: Add above new options.
2594 2006-08-18 Christiaan Simons
2595 * tcp_{in,out}.c: added SNMP counters.
2596 * ipv4/ip.c: added SNMP counters.
2597 * ipv4/ip_frag.c: added SNMP counters.
2599 2006-08-08 Christiaan Simons
2600 * etharp.{c,h}: added etharp_find_addr() to read
2601 (stable) ethernet/IP address pair from ARP table
2603 2006-07-14 Christiaan Simons
2604 * mib_structs.c: added
2605 * include/lwip/snmp_structs.h: added
2606 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2608 2006-07-06 Christiaan Simons
2609 * snmp/asn1_{enc,dec}.c added
2611 * snmp/msg_{in,out}.c added
2612 * include/lwip/snmp_asn1.h added
2613 * include/lwip/snmp_msg.h added
2614 * doc/snmp_agent.txt added
2616 2006-03-29 Christiaan Simons
2617 * inet.c, inet.h: Added platform byteswap support.
2618 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2619 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2623 2006-11-30 Christiaan Simons
2624 * dhcp.c: Fixed false triggers of request_timeout.
2626 2006-11-28 Christiaan Simons
2627 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2629 2006-10-11 Christiaan Simons
2630 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2631 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2632 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2633 identifier from 170 to 136 (bug #17574).
2635 2006-10-10 Christiaan Simons
2636 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2638 2006-08-17 Christiaan Simons
2639 * udp.c: Fixed bug #17200, added check for broadcast
2640 destinations for PCBs bound to a unicast address.
2642 2006-08-07 Christiaan Simons
2643 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2645 2006-06-27 Christiaan Simons
2646 * api_msg.c: Applied patch for cold case (bug #11135).
2647 In accept_function() ensure newconn->callback is always initialized.
2649 2006-06-15 Christiaan Simons
2650 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2651 facilitate printing of mem_size_t and u16_t statistics.
2653 2006-06-14 Christiaan Simons
2654 * api_msg.c: Applied patch #5146 to handle allocation failures
2655 in accept() by Kevin Lawson.
2657 2006-05-26 Christiaan Simons
2658 * api_lib.c: Removed conn->sem creation and destruction
2659 from netconn_write() and added sys_sem_new to netconn_new_*.
2663 2006-03-03 Christiaan Simons
2664 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2665 access and added pbuf_alloc() return value checks.
2667 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2668 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2669 now handled by the checksum routine properly.
2671 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2672 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2673 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2675 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2676 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2677 submitted by Mitrani Hiroshi.
2679 2005-12-15 Christiaan Simons
2680 * inet.c: Disabled the added summing routine to preserve code space.
2682 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2683 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2684 Added Curt McDowell's optimized checksumming routine for future
2685 inclusion. Need to create test case for unaliged, aligned, odd,
2686 even length combination of cases on various endianess machines.
2688 2005-12-09 Christiaan Simons
2689 * inet.c: Rewrote standard checksum routine in proper portable C.
2691 2005-11-25 Christiaan Simons
2692 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2693 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2694 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2696 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2697 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2698 routine by Peter Jolasson.
2699 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2701 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2702 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2703 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2705 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2706 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2708 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2709 * udp.c: UDP pcb->recv() was called even when it was NULL.
2713 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2714 * etharp.*: Disabled multiple packets on the ARP queue.
2715 This clashes with TCP queueing.
2717 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2718 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2719 Halved the ARP period, doubled the period counts.
2720 ETHARP_MAX_PENDING now should be at least 2. This prevents
2721 the counter from reaching 0 right away (which would allow
2722 too little time for ARP responses to be received).
2724 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2725 * dhcp.c: Decline messages were not multicast but unicast.
2726 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2727 Do not try hard to insert arbitrary packet's source address,
2728 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2729 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2730 querying an address will see it appear in the cache (DHCP could
2731 suffer from this when a server invalidly gave an in-use address.)
2732 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2733 comparing network addresses (identifiers), not the network masks
2735 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2736 IP address actually belongs to the network of the given interface.
2738 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2739 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2743 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2744 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2745 even if one is already pending, if the rcv_wnd is above a threshold
2746 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2747 delayed ACK in order to open the window if the stack is only receiving data.
2749 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2750 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2752 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2753 * etharp.c: Make sure the first pbuf queued on an ARP entry
2754 is properly ref counted.
2756 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2757 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2758 warnings about comparison.
2759 * pbuf.c: Stopped compiler complaining of empty if statement
2760 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2761 * tcp.c: Stopped compiler complaining of empty if statement
2762 when LWIP_DEBUGF() empty.
2763 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2764 * inet.c: Added a couple of casts to quiet the compiler.
2765 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2767 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2768 * inet.c: Made data types consistent in inet_ntoa().
2769 Added casts for return values of checksum routines, to pacify compiler.
2770 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2771 Small corrections to some debugging statements, to pacify compiler.
2773 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2774 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2775 * ethernetif.c Updated low_level_output() to match prototype for
2776 netif->linkoutput and changed low_level_input() similarly for consistency.
2777 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2778 of raw_recv() in raw.h and so avoid compiler error.
2779 * sockets.c: Added trivial (int) cast to keep compiler happier.
2780 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2786 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2787 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2788 your cc.h file defines this either 1 or 0. If non-defined,
2790 * .c: Added <string.h> and <errno.h> includes where used.
2791 * etharp.c: Made some array indices unsigned.
2793 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2794 * netif.*: Added netif_set_up()/down().
2795 * dhcp.c: Changes to restart program flow.
2797 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2798 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2799 single-pass lookup for different candidates. Should exploit locality.
2801 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2802 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2803 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2804 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2805 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2809 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2810 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2811 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2812 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2813 is to prefix the 14-bit Ethernet headers with two padding bytes.
2815 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2816 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2817 * etharp.c: Fixed the case where the packet that initiates the ARP request
2818 is not queued, and gets lost. Fixed the case where the packets destination
2819 address is already known; we now always queue the packet and perform an ARP
2826 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2827 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2828 * Fixed two possible NULL references in rare cases.
2834 * Fixed DHCP which did not include the IP address in DECLINE messages.
2838 * etharp.c has been hauled over a bit.
2844 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2845 * Packets sent from ARP queue had invalid source hardware address.
2849 * Pass-by ARP requests do now update the cache.
2853 * No longer dependent on ctype.h.
2854 * New socket options.
2855 * Raw IP pcb support.
2861 * Some debug formatters and casts fixed.
2862 * Numereous fixes in PPP.
2866 * DEBUGF now is LWIP_DEBUGF
2867 * pbuf_dechain() has been re-enabled.
2868 * Mentioned the changed use of CVS branches in README.
2874 * Fixed pool pbuf memory leak in pbuf_alloc().
2875 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2876 Reported by Savin Zlobec.
2878 * PBUF_POOL chains had their tot_len field not set for non-first
2879 pbufs. Fixed in pbuf_alloc().
2883 * Added PPP stack contributed by Marc Boucher
2887 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2889 * ARP queueuing now queues the latest packet instead of the first.
2890 This is the RFC recommended behaviour, but can be overridden in
2897 * TCP has been fixed to deal with the new use of the pbuf->ref
2900 * DHCP dhcp_inform() crash bug fixed.
2904 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2905 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2906 Implemented by David Haas.
2912 * The packet buffer implementation has been enhanced to support
2913 zero-copy and copy-on-demand for packet buffers which have their
2914 payloads in application-managed memory.
2915 Implemented by David Haas.
2917 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2918 if an outgoing packet can be directly sent on the link, or perform
2919 a copy-on-demand when necessary.
2921 The application can safely assume the packet is sent, and the RAM
2922 is available to the application directly after calling udp_send()
2923 or similar function.
2927 * ARP_QUEUEING should now correctly work for all cases, including
2929 Implemented by Leon Woestenberg.
2933 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2934 to a '0.0.0.0' IP address.
2936 * The packet buffer implementation is changed. The pbuf->ref counter
2937 meaning has changed, and several pbuf functions have been
2938 adapted accordingly.
2940 * netif drivers have to be changed to set the hardware address length field
2941 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2942 See the contrib/ports/c16x cs8900 driver as a driver example.
2944 * netif's have a dhcp field that must be initialized to NULL by the driver.
2945 See the contrib/ports/c16x cs8900 driver as a driver example.
2947 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2948 logged in CVS but have not been explained here.
2950 (0.5.3) Changes since version 0.5.2
2954 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2955 threads because it wasn't protected by semaphores.
2959 * struct ip_addr now packed.
2961 * The name of the time variable in arp.c has been changed to ctime
2962 to avoid conflicts with the time() function.
2964 (0.5.2) Changes since version 0.5.1
2968 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2972 * A bug in tcp_parseopt() could cause the stack to hang because of a
2973 malformed TCP option.
2975 * The address of new connections in the accept() function in the BSD
2976 socket library was not handled correctly.
2978 * pbuf_dechain() did not update the ->tot_len field of the tail.
2980 * Aborted TCP connections were not handled correctly in all
2985 * All protocol header structs are now packed.
2987 * The ->len field in the tcp_seg structure now counts the actual
2988 amount of data, and does not add one for SYN and FIN segments.
2990 (0.5.1) Changes since version 0.5.0
2994 * Possible to run as a user process under Linux.
2996 * Preliminary support for cross platform packed structs.
2998 * ARP timer now implemented.
3002 * TCP output queue length was badly initialized when opening
3005 * TCP delayed ACKs were not sent correctly.
3007 * Explicit initialization of BSS segment variables.
3009 * read() in BSD socket library could drop data.
3011 * Problems with memory alignment.
3013 * Situations when all TCP buffers were used could lead to
3016 * TCP MSS option wasn't parsed correctly.
3018 * Problems with UDP checksum calculation.
3020 * IP multicast address tests had endianess problems.
3022 * ARP requests had wrong destination hardware address.
3026 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3028 * A ->linkoutput() member was added to struct netif.
3030 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3032 * ntoh* macros are now null definitions for big endian CPUs.
3034 (0.5.0) Changes since version 0.4.2
3038 * Redesigned operating system emulation layer to make porting easier.
3040 * Better control over TCP output buffers.
3042 * Documenation added.
3046 * Locking issues in buffer management.
3048 * Bugfixes in the sequential API.
3050 * IP forwarding could cause memory leakage. This has been fixed.
3054 * Directory structure somewhat changed; the core/ tree has been
3057 (0.4.2) Changes since version 0.4.1
3061 * Experimental ARP implementation added.
3063 * Skeleton Ethernet driver added.
3065 * Experimental BSD socket API library added.
3069 * In very intense situations, memory leakage could occur. This has
3074 * Variables named "data" and "code" have been renamed in order to
3075 avoid name conflicts in certain compilers.
3077 * Variable++ have in appliciable cases been translated to ++variable
3078 since some compilers generate better code in the latter case.
3080 (0.4.1) Changes since version 0.4
3084 * TCP: Connection attempts time out earlier than data
3085 transmissions. Nagle algorithm implemented. Push flag set on the
3086 last segment in a burst.
3088 * UDP: experimental support for UDP-Lite extensions.
3092 * TCP: out of order segments were in some cases handled incorrectly,
3093 and this has now been fixed. Delayed acknowledgements was broken
3094 in 0.4, has now been fixed. Binding to an address that is in use
3095 now results in an error. Reset connections sometimes hung an
3096 application; this has been fixed.
3098 * Checksum calculation sometimes failed for chained pbufs with odd
3099 lengths. This has been fixed.
3101 * API: a lot of bug fixes in the API. The UDP API has been improved
3102 and tested. Error reporting and handling has been
3103 improved. Logical flaws and race conditions for incoming TCP
3104 connections has been found and removed.
3106 * Memory manager: alignment issues. Reallocating memory sometimes
3107 failed, this has been fixed.
3109 * Generic library: bcopy was flawed and has been fixed.
3113 * API: all datatypes has been changed from generic ones such as
3114 ints, to specified ones such as u16_t. Functions that return
3115 errors now have the correct type (err_t).
3117 * General: A lot of code cleaned up and debugging code removed. Many
3118 portability issues have been fixed.
3120 * The license was changed; the advertising clause was removed.
3124 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3125 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3128 (0.4) Changes since version 0.3.1
3130 * Memory management has been radically changed; instead of
3131 allocating memory from a shared heap, memory for objects that are
3132 rapidly allocated and deallocated is now kept in pools. Allocation
3133 and deallocation from those memory pools is very fast. The shared
3134 heap is still present but is used less frequently.
3136 * The memory, memory pool, and packet buffer subsystems now support
3137 4-, 2-, or 1-byte alignment.
3139 * "Out of memory" situations are handled in a more robust way.
3141 * Stack usage has been reduced.
3143 * Easier configuration of lwIP parameters such as memory usage,
3144 TTLs, statistics gathering, etc. All configuration parameters are
3145 now kept in a single header file "lwipopts.h".
3147 * The directory structure has been changed slightly so that all
3148 architecture specific files are kept under the src/arch
3151 * Error propagation has been improved, both in the protocol modules
3154 * The code for the RTXC architecture has been implemented, tested
3157 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3158 the Internet checksum modules.
3160 * Bugs related to porting between a 32-bit and a 16-bit architecture
3161 have been found and corrected.
3163 * The license has been changed slightly to conform more with the
3164 original BSD license, including the advertisement clause.
3166 (0.3.1) Changes since version 0.3
3168 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3169 RAM never returned the RAM when the pbuf was deallocated.
3171 * TCP congestion control, window updates and retransmissions did not
3172 work correctly. This has now been fixed.
3174 * Bugfixes in the API.
3176 (0.3) Changes since version 0.2
3178 * New and improved directory structure. All include files are now
3179 kept in a dedicated include/ directory.
3181 * The API now has proper error handling. A new function,
3182 netconn_err(), now returns an error code for the connection in
3185 * Improvements in the memory management subsystem. The system now
3186 keeps a pointer to the lowest free memory block. A new function,
3187 mem_malloc2() tries to allocate memory once, and if it fails tries
3188 to free some memory and retry the allocation.
3190 * Much testing has been done with limited memory
3191 configurations. lwIP now does a better job when overloaded.
3193 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3195 * Many bugfixes in the TCP code:
3197 - Fixed a bug in tcp_close().
3199 - The TCP receive window was incorrectly closed when out of
3200 sequence segments was received. This has been fixed.
3202 - Connections are now timed-out of the FIN-WAIT-2 state.
3204 - The initial congestion window could in some cases be too
3205 large. This has been fixed.
3207 - The retransmission queue could in some cases be screwed up. This
3210 - TCP RST flag now handled correctly.
3212 - Out of sequence data was in some cases never delivered to the
3213 application. This has been fixed.
3215 - Retransmitted segments now contain the correct acknowledgment
3216 number and advertised window.
3218 - TCP retransmission timeout backoffs are not correctly computed
3219 (ala BSD). After a number of retransmissions, TCP now gives up
3222 * TCP connections now are kept on three lists, one for active
3223 connections, one for listening connections, and one for
3224 connections that are in TIME-WAIT. This greatly speeds up the fast
3225 timeout processing for sending delayed ACKs.
3227 * TCP now provides proper feedback to the application when a
3228 connection has been successfully set up.
3230 * More comments have been added to the code. The code has also been
3231 somewhat cleaned up.
3233 (0.2) Initial public release.