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 2011-10-18: Simon Goldschmidt
73 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
74 consider netif->mtu, causes slow network
76 2011-10-18: Simon Goldschmidt
77 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
79 2011-10-18: Simon Goldschmidt
80 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
82 2011-10-17: Simon Goldschmidt
83 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
85 2011-10-13: Simon Goldschmidt
86 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
87 zero window is received) by starting the persist timer when a zero window is
88 received, not when we have more data queued for sending than fits into the
91 2011-10-13: Simon Goldschmidt
92 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
94 2011-10-13: Simon Goldschmidt
95 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
96 used and not all protocols are enabled
98 2011-10-12: Simon Goldschmidt
99 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
101 2011-10-09: Simon Goldschmidt
102 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
103 byte value when pcb->unacked != NULL
105 2011-10-09: Simon Goldschmidt
106 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
108 2011-09-27: Simon Goldschmidt
109 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
111 2011-09-27: Simon Goldschmidt
112 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
114 2011-09-27: Simon Goldschmidt
115 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
117 2011-09-24: Simon Goldschmidt
118 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
120 2011-09-23: Simon Goldschmidt
121 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
122 the last packet including FIN can lose data
124 2011-09-22: Simon Goldschmidt
125 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
128 2011-09-21: Simon Goldschmidt
129 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
132 2011-09-20: Simon Goldschmidt
133 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
135 2011-09-11: Simon Goldschmidt
136 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
139 2011-09-09: Simon Goldschmidt
140 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
143 2011-09-03: Simon Goldschmidt
144 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
145 is aggregated and sent to application
147 2011-09-01: Simon Goldschmidt
148 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
151 2011-09-01: Simon Goldschmidt
152 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
154 2011-08-24: Simon Goldschmidt
155 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
157 2011-08-24: Simon Goldschmidt
158 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
159 accept() on UDP connections
161 2011-08-24: Simon Goldschmidt
162 * sockets.h: fixed bug #34057 socklen_t should be a typedef
164 2011-08-24: Simon Goldschmidt
165 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
167 2011-08-24: Simon Goldschmidt
168 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
170 2011-08-24: Simon Goldschmidt
171 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
173 2011-08-22: Simon Goldschmidt
174 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
175 merely prevents nagle from not transmitting fast after closing.)
177 2011-07-22: Simon Goldschmidt
178 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
179 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
180 lwip_send() sends as much as possible for non-blocking sockets
182 2011-07-22: Simon Goldschmidt
183 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
184 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
185 at regular intervals from main level.
187 2011-07-21: Simon Goldschmidt
188 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
189 sending an ARP request when an ARP entry is used in the last minute before
192 2011-07-04: Simon Goldschmidt
193 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
195 2011-06-26: Simon Goldschmidt
196 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
197 updating its documentation only.
199 2011-06-26: Simon Goldschmidt
200 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
203 2011-06-26: Simon Goldschmidt
204 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
212 2011-03-27: Simon Goldschmidt
213 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
214 calculate it in tcp_zero_window_probe (the only place where it was used).
216 2010-11-21: Simon Goldschmidt
217 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
220 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
221 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
222 IP_MULTICAST_LOOP at socket- and raw-API level.
224 2010-06-16: Simon Goldschmidt
225 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
226 link-layer-addressed UDP traffic to be received while a netif is down (just
227 like DHCP during configuration)
229 2010-05-22: Simon Goldschmidt
230 * many many files: bug #27352: removed packing from ip_addr_t, the packed
231 version is now only used in protocol headers. Added global storage for
232 current src/dest IP address while in input functions.
234 2010-05-16: Simon Goldschmidt
235 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
236 calculation (and use them throughout the stack where applicable)
238 2010-05-16: Simon Goldschmidt
239 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
240 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
242 2010-05-16: Simon Goldschmidt
243 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
244 MEMP pool instead of the heap
246 2010-05-13: Simon Goldschmidt
247 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
248 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
249 packets to more than one pcb.
251 2010-05-02: Simon Goldschmidt
252 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
253 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
255 2010-04-30: Simon Goldschmidt
256 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
257 take a precalculated checksum, added pbuf_fill_chksum() to copy data
258 into a pbuf and at the same time calculating the checksum for that data
260 2010-04-29: Simon Goldschmidt
261 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
262 2-byte-aligned IP addresses and MAC addresses
264 2010-04-28: Patch by Bill Auerbach
265 * ip.c: Inline generating IP checksum to save a function call
267 2010-04-14: Simon Goldschmidt
268 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
269 tcpip_thread processes messages or timeouts to implement a watchdog.
271 2010-03-28: Simon Goldschmidt
272 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
273 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
275 2010-03-27: Simon Goldschmidt
276 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
277 etharp_query to prevent unnecessary function calls (inspired by
280 2010-03-20: Simon Goldschmidt
281 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
282 since the linker cannot do this automatically to save space.
284 2010-03-20: Simon Goldschmidt
285 * opt.h, etharp.c/.h: Added support for static ARP table entries
287 2010-03-14: Simon Goldschmidt
288 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
289 when creating TCP segments, not when (re-)transmitting them.
291 2010-03-07: Simon Goldschmidt
292 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
293 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
294 This should speed up receiving data on sockets as the select code in
295 event_callback is only executed when select is waiting.
297 2010-03-06: Simon Goldschmidt
298 * tcp_out.c: task #7013 (Create option to have all packets delivered to
299 netif->output in one piece): Always copy to try to create single pbufs
302 2010-03-06: Simon Goldschmidt
303 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
304 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
305 for tcp netconns to receive pbufs, not netbufs; use that function
308 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
309 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
310 Work on tcp_enqueue: Don't waste memory when chaining segments,
311 added option TCP_OVERSIZE to prevent creating many small pbufs when
312 calling tcp_write with many small blocks of data. Instead, pbufs are
313 allocated larger than needed and the space is used for later calls to
316 2010-02-21: Simon Goldschmidt
317 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
320 2010-02-21: Simon Goldschmidt
321 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
322 implementation of tcp to make API usage cleare to application programmers
324 2010-02-14: Simon Goldschmidt/Stephane Lesage
325 * ip_addr.h: Improved some defines working on ip addresses, added faster
326 macro to copy addresses that cannot be NULL
328 2010-02-13: Simon Goldschmidt
329 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
330 blocking send operation)
332 2010-02-12: Simon Goldschmidt
333 * sockets.c/.h: Added a minimal version of posix fctl() to have a
334 standardised way to set O_NONBLOCK for nonblocking sockets.
336 2010-02-12: Simon Goldschmidt
337 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
338 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
339 and dhcp work with user-allocated structs instead of callin mem_malloc
341 2010-02-12: Simon Goldschmidt/Jeff Barber
342 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
343 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
345 2010-02-12: Simon Goldschmidt
346 * sys layer: task #10139 (Prefer statically allocated memory): converted
347 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
348 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
349 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
350 to let sys.h use binary semaphores instead of mutexes - as before)
352 2010-02-09: Simon Goldschmidt (Simon Kallweit)
353 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
354 (Restart system timeout handling)
356 2010-02-09: Simon Goldschmidt
357 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
358 netif.c) - loopif does not have to be created by the port any more,
359 just define LWIP_HAVE_LOOPIF to 1.
361 2010-02-08: Simon Goldschmidt
362 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
363 inet_ntoa_r/ipaddr_ntoa_r
365 2010-02-08: Simon Goldschmidt
366 * netif.h: Added netif_s/get_igmp_mac_filter() macros
368 2010-02-05: Simon Goldschmidt
369 * netif.h: Added function-like macros to get/set the hostname on a netif
371 2010-02-04: Simon Goldschmidt
372 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
373 make changing the actual implementation behind the typedef easier.
375 2010-02-01: Simon Goldschmidt
376 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
377 for allocating memory when getaddrinfo() is called.
379 2010-01-31: Simon Goldschmidt
380 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
381 them once instead of parsing for every option. This also removes
382 the need for mem_malloc from dhcp_recv and makes it possible to
383 correctly retrieve the BOOTP file.
385 2010-01-30: simon Goldschmidt
386 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
389 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
390 * api.h, api_msg.c, sockets.c: Added except set support in select
393 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
394 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
395 Add non-blocking support for connect (partly from patch #6860),
396 plus many cleanups in socket & netconn API.
398 2010-01-27: Simon Goldschmidt
399 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
400 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
402 2010-01-26: Simon Goldschmidt
403 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
405 2010-01-14: Simon Goldschmidt
406 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
407 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
409 2010-01-13: Simon Goldschmidt
410 * mem.c: The heap now may be moved to user-defined memory by defining
411 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
412 (patch #6966 and bug #26133)
414 2010-01-10: Simon Goldschmidt (Bill Auerbach)
415 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
418 2010-01-10: Simon Goldschmidt
419 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
420 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
422 2009-12-31: Simon Goldschmidt
423 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
424 added timers.c/.h: Separated timer implementation from semaphore/mbox
425 implementation, moved timer implementation to timers.c/.h, timers are
426 now only called from tcpip_thread or by explicitly checking them.
429 2009-12-27: Simon Goldschmidt
430 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
431 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
436 2011-04-20: Simon Goldschmidt
437 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
439 2011-04-13: Simon Goldschmidt
440 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
441 using ports in the IANA private/dynamic range (49152 through 65535).
443 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
444 * etharp.h/.c: Fixed broken VLAN support.
446 2011-03-27: Simon Goldschmidt
447 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
448 pcbs) by checking if the pcb was bound (local_port != 0).
450 2011-03-27: Simon Goldschmidt
451 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
453 2011-03-27: Simon Goldschmidt
454 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
455 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
457 2011-03-27: Simon Goldschmidt
458 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
459 is present never times out) by starting retransmission timer before checking
462 2011-03-22: Simon Goldschmidt
463 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
464 calling sio_read_abort() if the file descriptor is valid.
466 2011-03-14: Simon Goldschmidt
467 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
468 more than once can render a socket useless) since it mainly involves changing
469 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
471 2011-03-13: Simon Goldschmidt
472 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
473 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
474 use EALRADY instead of -1
476 2011-03-13: Simon Goldschmidt
477 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
478 connection has been aborted by err_tcp (since this is not a normal closing
481 2011-03-13: Simon Goldschmidt
482 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
483 with pcb->state != CLOSED
485 2011-02-17: Simon Goldschmidt
486 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
489 2011-02-17: Simon Goldschmidt
490 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
492 2011-01-24: Simon Goldschmidt
493 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
495 2010-12-02: Simon Goldschmidt
496 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
498 2010-11-23: Simon Goldschmidt
499 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
500 LWIP_SO_RCVBUF and ioctl/FIONREAD.
502 2010-11-23: Simon Goldschmidt
503 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
504 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
506 2010-11-23: Simon Goldschmidt
507 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
508 refusing 'refused_data' again.
510 2010-11-22: Simon Goldschmidt
511 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
512 after a successful nonblocking connection.
514 2010-11-22: Simon Goldschmidt
515 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
516 must be sent link-local
518 2010-11-22: Simon Goldschmidt
519 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
522 2010-11-20: Simon Goldschmidt
523 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
525 2010-11-20: Simon Goldschmidt
526 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
527 resemble other stacks.
529 2010-11-20: Simon Goldschmidt
530 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
531 no-copy TCP writes will never succeed.
533 2010-11-20: Simon Goldschmidt
534 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
535 not match documentation: return ERR_ARG instead of ERR_VAL if not
536 initialized or wrong argument.
538 2010-10-20: Simon Goldschmidt
539 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
541 2010-10-05: Simon Goldschmidt
542 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
543 replugging the network cable after an AutoIP address was assigned.
545 2010-08-10: Simon Goldschmidt
546 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
548 2010-08-03: Simon Goldschmidt
549 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
551 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
552 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
553 endian architectures)
555 2010-07-28: Simon Goldschmidt
556 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
559 2010-07-27: Simon Goldschmidt
560 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
561 harm but never did anything
563 2010-07-21: Simon Goldschmidt
564 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
567 2010-07-16: Kieran Mansley
568 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
570 2010-07-10: Simon Goldschmidt
571 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
573 2010-06-30: Simon Goldschmidt
574 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
577 2010-06-28: Kieran Mansley
578 * timers.c remove unportable printing of C function pointers
580 2010-06-24: Simon Goldschmidt
581 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
582 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
584 2010-06-24: Simon Goldschmidt
585 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
586 implemented shutdown at socket level.
588 2010-06-21: Simon Goldschmidt
589 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
590 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
591 custom pbufs that reference other (original) pbufs. Additionally set
592 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
594 2010-06-15: Simon Goldschmidt
595 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
597 2010-06-14: Simon Goldschmidt
598 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
600 2010-06-12: Simon Goldschmidt
601 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
604 2010-05-17: Simon Goldschmidt
605 * netdb.c: Correctly NULL-terminate h_addr_list
607 2010-05-16: Simon Goldschmidt
608 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
609 "symbol already defined" i.e. when linking to winsock
611 2010-05-05: Simon Goldschmidt
612 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
615 2010-04-21: Simon Goldschmidt
616 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
619 2010-03-28: Luca Ceresoli
620 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
622 2010-03-27: Luca Ceresoli
623 * mib2.c: patch #7130: remove meaningless const qualifiers
625 2010-03-26: Simon Goldschmidt
626 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
628 2010-03-26: Simon Goldschmidt
629 * various files: Fixed compiling with different options disabled (TCP/UDP),
630 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
632 2010-03-25: Simon Goldschmidt
633 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
635 2010-03-25: Simon Goldschmidt
636 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
637 overrunning our rcv_wnd in ooseq case.
639 2010-03-22: Simon Goldschmidt
640 * tcp.c: tcp_listen() did not copy the pcb's prio.
642 2010-03-19: Simon Goldschmidt
643 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
645 2010-03-14: Simon Goldschmidt
646 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
647 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
648 and basing PBUF_LINK_HLEN on it.
650 2010-03-08: Simon Goldschmidt
651 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
652 when assiging routable address): when checking incoming packets and
653 aborting existing connection on address change, filter out link-local
656 2010-03-06: Simon Goldschmidt
657 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
659 2010-03-06: Simon Goldschmidt
660 * ipv4/ip.c: Don't try to forward link-local addresses
662 2010-03-06: Simon Goldschmidt
663 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
666 2010-03-05: Simon Goldschmidt
667 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
670 2010-03-05: Simon Goldschmidt
671 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
672 into multiple calls to tcp_write.
674 2010-02-21: Simon Goldschmidt
675 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
676 the implementation of DNS_USES_STATIC_BUF==1)
678 2010-02-20: Simon Goldschmidt
679 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
680 close() vs. shutdown(). Now the application does not get any more
681 recv callbacks after calling tcp_close(). Added tcp_shutdown().
683 2010-02-19: Simon Goldschmidt
684 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
685 confusion with realloc()
687 2010-02-15: Simon Goldschmidt/Stephane Lesage
688 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
691 2010-02-14: Simon Goldschmidt
692 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
693 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
694 admin-status of a netif are up
696 2010-02-14: Simon Goldschmidt
697 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
698 reception and is not really necessary
700 2010-02-14: Simon Goldschmidt
701 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
702 request was directed as us (RFC 826, Packet Reception), otherwise
703 only update existing entries; internalized some functions
705 2010-02-14: Simon Goldschmidt
706 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
707 disabled on netif used for PPPoE) by adding a new netif flag
708 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
709 device but prevents usage of ARP (so that ethernet_input can be used
712 2010-02-12: Simon Goldschmidt
713 * netif.c: netif_set_link_up/down: only do something if the link state
716 2010-02-12: Simon Goldschmidt/Stephane Lesage
717 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
720 2010-02-12: Simon Goldschmidt
721 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
723 2010-02-09: Simon Goldschmidt
724 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
725 (recv() makes receive window update for data that wasn't received by
728 2010-02-09: Simon Goldschmidt/Stephane Lesage
729 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
730 or any netconn_recv() error)
732 2010-02-09: Simon Goldschmidt
733 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
735 2010-02-09: Simon Goldschmidt
736 * netif.c: For loopback packets, adjust the stats- and snmp-counters
737 for the loopback netif.
739 2010-02-08: Simon Goldschmidt
740 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
741 since they are not used anywhere else.
743 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
744 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
745 (patch from bug #28798)
747 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
748 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
749 another bug when LWIP_RAND() returns zero.
751 2010-02-04: Simon Goldschmidt
752 * nearly every file: Use macros defined in ip_addr.h (some of them new)
753 to work with IP addresses (preparation for bug #27352 - Change ip_addr
754 from struct to typedef (u32_t) - and better code).
756 2010-01-31: Simon Goldschmidt
757 * netif.c: Don't call the link-callback from netif_set_up/down() since
758 this invalidly retriggers DHCP.
760 2010-01-29: Simon Goldschmidt
761 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
762 portability file inet.h and its contents from the stack: moved htonX-
763 functions to def.h (and the new def.c - they are not ipv4 dependent),
764 let inet.h depend on ip_addr.h and not the other way round.
765 This fixes bug #28732.
767 2010-01-28: Kieran Mansley
768 * tcp.c: Ensure ssthresh >= 2*MSS
770 2010-01-27: Simon Goldschmidt
771 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
772 callback can lead to accessing unallocated memory. As a consequence,
773 ERR_ABRT means the application has called tcp_abort()!
775 2010-01-25: Simon Goldschmidt
776 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
777 not implemented in SNMP): write-only or not-accessible are still
778 returned by getnext (though not by get)
780 2010-01-24: Simon Goldschmidt
781 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
782 not use reserved C/C++ keywords
784 2010-01-23: Simon Goldschmidt
785 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
788 2010-01-21: Simon Goldschmidt
789 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
790 if tcp_enqueue fails) both in raw- and netconn-API
792 2010-01-19: Simon Goldschmidt
793 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
795 2010-01-18: Iordan Neshev/Simon Goldschmidt
796 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
797 bugfix backports from 2.4.x.
799 2010-01-18: Simon Goldschmidt
800 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
802 2010-01-17: Simon Goldschmidt
803 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
804 task #10102: "netconn: clean up conn->err threading issues" by adding
805 error return value to struct api_msg_msg
807 2010-01-17: Simon Goldschmidt
808 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
809 to return err_t (bugs #27709 and #28087)
811 2010-01-14: Simon Goldschmidt
812 * ...: Use typedef for function prototypes throughout the stack.
814 2010-01-13: Simon Goldschmidt
815 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
816 window = 0) by correctly draining recvmbox/acceptmbox
818 2010-01-11: Simon Goldschmidt
819 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
820 erroneous callbacks) by copying the code from recent pppd
822 2010-01-10: Simon Goldschmidt
823 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
825 2010-01-10: Simon Goldschmidt
826 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
828 2010-01-08: Simon Goldschmidt
829 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
831 2010-01-08: Simon Goldschmidt
832 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
833 passed to dns_local_addhost() might be volatile
835 2010-01-07: Simon Goldschmidt
836 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
838 2010-01-06: Simon Goldschmidt
839 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
841 2009-12-31: Simon Goldschmidt
842 * many ppp files: Reorganised PPP source code from ucip structure to pppd
843 structure to easily compare our code against the pppd code (around v2.3.1)
845 2009-12-27: Simon Goldschmidt
846 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
854 2009-10-27 Simon Goldschmidt/Stephan Lesage
855 * netifapi.c/.h: Added netifapi_netif_set_addr()
857 2009-10-07 Simon Goldschmidt/Fabian Koch
858 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
859 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
861 2009-08-26 Simon Goldschmidt/Simon Kallweit
862 * slipif.c/.h: bug #26397: SLIP polling support
864 2009-08-25 Simon Goldschmidt
865 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
866 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
868 2009-08-25 Simon Goldschmidt
869 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
871 2009-08-24 Jakob Stoklund Olesen
872 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
873 to netif_set_link_up().
875 2009-08-23 Simon Goldschmidt
876 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
877 to a human-readable string.
881 2009-12-24: Kieran Mansley
882 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
885 2009-12-06: Simon Goldschmidt
886 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
887 be statically allocated (like in ucip)
889 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
890 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
892 2009-12-03: Simon Goldschmidt
893 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
894 could have non-zero length
896 2009-12-02: Simon Goldschmidt
897 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
898 tcp_input_pcb until after calling the pcb's callbacks
900 2009-11-29: Simon Goldschmidt
901 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
902 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
904 2009-11-29: Simon Goldschmidt
905 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
906 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
908 2009-11-26: Simon Goldschmidt
909 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
912 2009-11-26: Simon Goldschmidt
913 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
914 algorithm at PCB level
916 2009-11-22: Simon Goldschmidt
917 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
919 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
920 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
921 reusing time-wait pcb
923 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
924 * sockets.c: Fixed bug #28062: Data received directly after accepting
925 does not wake up select
927 2009-11-11: Simon Goldschmidt
928 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
930 2009-10-30: Simon Goldschmidt
931 * opt.h: Increased default value for TCP_MSS to 536, updated default
932 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
934 2009-10-28: Kieran Mansley
935 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
936 to follow algorithm from TCP/IP Illustrated
938 2009-10-27: Kieran Mansley
939 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
941 2009-10-25: Simon Goldschmidt
942 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
943 pcb->recv is NULL to keep rcv_wnd correct)
945 2009-10-25: Simon Goldschmidt
946 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
948 2009-10-23: Simon Goldschmidt (David Empson)
949 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
951 2009-10-21: Simon Goldschmidt
952 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
953 trailing 1 byte len (SYN/FIN)
955 2009-10-21: Simon Goldschmidt
956 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
958 2009-10-19: Simon Goldschmidt
959 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
960 conditional code to assert where applicable), check pbuf length before
961 testing for valid reply
963 2009-10-19: Simon Goldschmidt
964 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
965 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
967 2009-10-16: Simon Goldschmidt
968 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
969 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
972 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
973 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
975 2009-10-15: Simon Goldschmidt
976 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
979 2009-10-15: Simon Goldschmidt
980 * autoip.c: Fixed bug #27704: autoip starts with wrong address
981 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
982 of network byte order
984 2009-10-11 Simon Goldschmidt (Jörg Kesten)
985 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
986 which are not consecutive when retransmitting unacked segments
988 2009-10-09 Simon Goldschmidt
989 * opt.h: Fixed default values of some stats to only be enabled if used
990 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
992 2009-08-30 Simon Goldschmidt
993 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
994 function" by checking for loopback before calling ip_frag
996 2009-08-25 Simon Goldschmidt
997 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
999 2009-08-23 Simon Goldschmidt
1000 * ppp.c: bug #27078: Possible memory leak in pppInit()
1002 2009-08-23 Simon Goldschmidt
1003 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1006 2009-08-23 Simon Goldschmidt
1007 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1008 Fixed wrong parenthesis, added check in init.c
1010 2009-08-23 Simon Goldschmidt
1011 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1013 2009-08-23 Simon Goldschmidt
1014 * many ppp files: bug #27267: Added include to string.h where needed
1016 2009-08-23 Simon Goldschmidt
1017 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1024 2009-05-10 Simon Goldschmidt
1025 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1026 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1027 one pbuf to help MACs that don't support scatter-gather DMA.
1029 2009-05-09 Simon Goldschmidt
1030 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1031 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1033 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1034 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1035 extended info about the currently received packet.
1037 2009-04-27 Simon Goldschmidt
1038 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1040 2009-04-25 Simon Goldschmidt
1041 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1042 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1044 2009-04-21 Simon Goldschmidt
1045 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1046 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1047 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1048 as an external function for lookup.
1050 2009-04-15 Simon Goldschmidt
1051 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1053 2009-03-31 Kieran Mansley
1054 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1055 TCP timestamp options, off by default. Rework tcp_enqueue() to
1056 take option flags rather than specified option data
1058 2009-02-18 Simon Goldschmidt
1059 * cc.h: Added printf formatter for size_t: SZT_F
1061 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1062 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1065 2009-02-12 Simon Goldschmidt
1066 * init.h: Added LWIP_VERSION to get the current version of the stack
1068 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1069 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1070 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1073 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1074 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1075 is only used by UDPLITE at present, so conditionalise it.
1077 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1078 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1079 "seed" address. This should reduce AUTOIP conflicts if
1080 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1082 2008-10-02 Jonathan Larmour and Rishi Khan
1083 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1086 2008-06-30 Simon Goldschmidt
1087 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1088 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1089 mem_free to run between mem_malloc iterations. Added illegal counter for
1092 2008-06-27 Simon Goldschmidt
1093 * stats.h/.c, some other files: patch #6483: stats module improvement:
1094 Added defines to display each module's statistic individually, added stats
1095 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1097 2008-06-17 Simon Goldschmidt
1098 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1099 (define LWIP_ERR_T in cc.h)
1101 2008-06-17 Simon Goldschmidt
1102 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1105 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1106 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1107 modified version of patch # 6370: Moved loopif code to netif.c so that
1108 loopback traffic is supported on all netifs (all local IPs).
1109 Added option to limit loopback packets for each netifs.
1113 2009-08-12 Kieran Mansley
1114 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1115 out of window or out of order properly
1117 2009-08-12 Kieran Mansley
1118 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1120 2009-07-28 Simon Goldschmidt
1121 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1123 2009-07-27 Kieran Mansley
1124 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1126 2009-07-09 Kieran Mansley
1127 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1128 recv_avail and don't increment counters until message successfully
1131 2009-06-25 Kieran Mansley
1132 * api_msg.c api.h: BUG26722: initialise netconn write variables
1135 2009-06-25 Kieran Mansley
1136 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1138 2009-06-25 Kieran Mansley
1139 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1140 simultaneous close behaviour, and make snd_nxt have the same meaning
1143 2009-05-12 Simon Goldschmidt
1144 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1145 arp_table / uses etharp_query" by adding etharp_gratuitous()
1147 2009-05-12 Simon Goldschmidt
1148 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1149 to the IP header (used by igmp_ip_output_if)
1151 2009-05-06 Simon Goldschmidt
1152 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1153 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1155 2009-05-05 Simon Goldschmidt
1156 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1159 2009-05-04 Simon Goldschmidt
1160 * init.c: snmp was not initialized in lwip_init()
1162 2009-05-04 Frédéric Bernon
1163 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1165 2009-05-03 Simon Goldschmidt
1166 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1167 (and unsent->next == NULL)
1169 2009-05-02 Simon Goldschmidt
1170 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1171 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1173 2009-05-02 Simon Goldschmidt
1174 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1176 2009-05-01 Simon Goldschmidt
1177 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1179 2009-05-01 Simon Goldschmidt
1180 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1182 2009-04-29 Frédéric Bernon
1183 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1184 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1185 of broadcast packets even when this option wasn't set. Port maintainers
1186 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1187 If you want this option also filter broadcast on recv operations, you also
1188 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1190 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1191 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1192 DHCP/AUTOIP cooperation
1194 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1195 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1196 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1197 right place in tcp_output and tcp_rexmit).
1199 2009-04-25 Simon Goldschmidt
1200 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1201 when debugging": memp_sizes contained the wrong sizes (including sanity
1202 regions); memp pools for MEM_USE_POOLS were too small
1204 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1205 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1206 behavior, with with ip address string not ended by a '\0', a space or a
1209 2009-04-19 Simon Goldschmidt
1210 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1211 pcb->err is called, not pcb->connected (with an error code).
1213 2009-04-19 Simon Goldschmidt
1214 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1215 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1217 2009-04-19 Simon Goldschmidt
1218 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1219 in the header pbuf, not the data pbuf)
1221 2009-04-18 Simon Goldschmidt
1222 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1224 2009-04-15 Simon Goldschmidt
1225 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1227 2009-04-15 Simon Goldschmidt
1228 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1230 2009-04-15 Simon Goldschmidt
1231 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1232 ip_hinted_output() (for smaller code mainly)
1234 2009-04-15 Simon Goldschmidt
1235 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1237 2009-04-15 Simon Goldschmidt
1238 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1239 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1240 is big enough in dhcp_start
1242 2009-04-15 Simon Goldschmidt
1243 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1245 2009-04-15 Simon Goldschmidt
1246 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1248 2009-04-15 Simon Goldschmidt
1249 * sockets.c: bug #26121: set_errno can be overridden
1251 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1252 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1255 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1256 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1259 2009-03-31 Kieran Mansley
1260 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1261 updates are calculated and sent (BUG20515)
1263 * tcp_in.c: cope with SYN packets received during established states,
1264 and retransmission of initial SYN.
1266 * tcp_out.c: set push bit correctly when tcp segments are merged
1268 2009-03-27 Kieran Mansley
1269 * tcp_out.c set window correctly on probes (correcting change made
1272 2009-03-26 Kieran Mansley
1273 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1274 connections where no reset required (bug #25622)
1276 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1279 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1280 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1281 too small depending on MEM_ALIGNMENT
1283 2009-02-16 Simon Goldschmidt
1284 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1285 converted size argument of netconn_write to 'size_t'
1287 2009-02-16 Simon Goldschmidt
1288 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1289 by moving accept callback function pointer to TCP_PCB_COMMON
1291 2009-02-12 Simon Goldschmidt
1292 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1295 2009-02-11 Simon Goldschmidt
1296 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1298 2009-02-11 Simon Goldschmidt
1299 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1300 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1302 2009-02-10 Simon Goldschmidt
1303 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1304 Accepts_pending is decrease on a corresponding listen pcb when a connection
1305 in state SYN_RCVD is close.
1307 2009-01-28 Jonathan Larmour
1308 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1311 2008-12-19 Simon Goldschmidt
1312 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1314 2008-12-10 Tamas Somogyi, Frédéric Bernon
1315 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1316 port uses deleted netbuf.
1318 2008-10-18 Simon Goldschmidt
1319 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1322 2008-10-15 Simon Goldschmidt
1323 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1324 by packing the struct ip_reass_helper.
1326 2008-10-03 David Woodhouse, Jonathan Larmour
1327 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1329 2008-10-02 Jonathan Larmour
1330 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1331 padding is included.
1333 2008-09-30 Jonathan Larmour
1334 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1335 assertion check that addrlen isn't NULL.
1337 2008-09-30 Jonathan Larmour
1338 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1340 2008-08-26 Simon Goldschmidt
1341 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1342 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1344 2008-08-14 Simon Goldschmidt
1345 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1346 tcp_close returns != ERR_OK)
1348 2008-07-08 Frédéric Bernon
1349 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1350 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1352 2008-06-24 Jonathan Larmour
1353 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1354 if tcp_seg_copy fails.
1356 2008-06-17 Simon Goldschmidt
1357 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1358 and created defines for swapping bytes and folding u32 to u16.
1360 2008-05-30 Kieran Mansley
1361 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1362 rather than rcv_ann_wnd when deciding if packets are in-window.
1363 Contributed by <arasmussen@consultant.datasys.swri.edu>
1365 2008-05-30 Kieran Mansley
1366 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1367 passing as function pointers when MEM_LIBC_MALLOC is defined.
1369 2008-05-09 Jonathan Larmour
1370 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1371 stop it being treated as a fatal error.
1373 2008-04-15 Simon Goldschmidt
1374 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1377 2008-03-27 Simon Goldschmidt
1378 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1379 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1380 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1381 or heap memory from interrupt context
1383 2008-03-26 Simon Goldschmidt
1384 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1385 host sent a zero mss as TCP option.
1392 2008-03-10 Jonathan Larmour
1393 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1394 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1396 2008-01-22 Frédéric Bernon
1397 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1398 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1400 2008-01-14 Frédéric Bernon
1401 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1402 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1403 tcp_recv callback (see rawapi.txt).
1405 2008-01-14 Frédéric Bernon, Marc Chaland
1406 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1408 2008-01-12 Frédéric Bernon
1409 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1410 netconn::sem per netconn::op_completed like suggested for the task #7490
1411 "Add return value to sys_mbox_post".
1413 2008-01-12 Frédéric Bernon
1414 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1415 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1416 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1418 2008-01-10 Frédéric Bernon
1419 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1420 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1421 "blocking" ("block" parameter = 1).
1423 2008-01-10 Frédéric Bernon
1424 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1425 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1426 "Add return value to sys_mbox_post".
1428 2008-01-05 Frédéric Bernon
1429 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1430 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1431 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1432 indicate the number of pointers query by the mailbox. There is three defines
1433 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1434 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1435 parameter in your implementation, but to ignore it to keep the previous behavior.
1436 The new sys_mbox_trypost function return a value to know if the mailbox is
1437 full or if the message is posted. Take a look to sys_arch.txt for more details.
1438 This new function is used in tcpip_input (so, can be called in an interrupt
1439 context since the function is not blocking), and in recv_udp and recv_raw.
1441 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1442 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1443 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1444 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1445 documentation in the rawapi.txt file.
1447 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1448 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1450 2007-12-31 Frédéric Bernon, Luca Ceresoli
1451 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1452 in autoip". The change in etharp_raw could be removed, since all calls to
1453 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1454 wrong in the future.
1456 2007-12-30 Frédéric Bernon, Tom Evans
1457 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1458 Filtering" reported by Tom Evans.
1460 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1461 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1462 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1463 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1464 keep accepting new connections.
1466 2007-12-13 Frédéric Bernon
1467 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1468 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1470 2007-12-12 Frédéric Bernon
1471 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1472 are the one which have ram usage.
1474 2007-12-05 Frédéric Bernon
1475 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1476 set of variables (=0) or a local one (=1). In this last case, your port should
1477 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1478 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1480 2007-12-03 Simon Goldschmidt
1481 * ip.c: ip_input: check if a packet is for inp first before checking all other
1482 netifs on netif_list (speeds up packet receiving in most cases)
1484 2007-11-30 Simon Goldschmidt
1485 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1486 UDP: move a (connected) pcb selected for input to the front of the list of
1487 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1490 2007-11-28 Simon Goldschmidt
1491 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1493 2007-11-25 Simon Goldschmidt
1494 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1497 2007-11-24 Simon Goldschmidt
1498 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1499 to the new file netdb.c; included lwip_getaddrinfo.
1501 2007-11-21 Simon Goldschmidt
1502 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1503 based on the MTU of the netif used to send. Enabled by default. Disable by
1504 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1506 2007-11-19 Frédéric Bernon
1507 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1508 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1509 copy dns payload to parse the response), return an error if there is no place
1510 for a new query, and fix some minor problems.
1512 2007-11-16 Simon Goldschmidt
1513 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1514 removed files: core/inet.c, core/inet6.c
1515 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1516 inet and chksum part; changed includes in all lwIP files as appropriate
1518 2007-11-16 Simon Goldschmidt
1519 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1520 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1521 (gethostbyname/gethostbyname_r).
1523 2007-11-15 Jim Pettinato, Frédéric Bernon
1524 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1525 requests with RAW api interface. Initialization is done in lwip_init() with
1526 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1527 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1528 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1529 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1530 list with points to improve.
1532 2007-11-06 Simon Goldschmidt
1533 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1534 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1535 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1537 2007-11-06 Simon Goldschmidt
1538 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1539 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1540 implementation from netconn api applications.
1542 2007-11-03 Frédéric Bernon
1543 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1544 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1545 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1546 it. This is a first release which have to be improve for TCP. Note it used the
1547 netconn::recv_avail which need to be more "thread-safe" (note there is already
1548 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1550 2007-11-01 Frédéric Bernon, Marc Chaland
1551 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1552 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1553 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1554 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1555 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1557 2007-10-24 Frédéric Bernon
1558 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1559 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1560 some code (like we have talk in "patch #5919 : Create compile switch to remove
1561 select code"), but it could be done later.
1563 2007-10-08 Simon Goldschmidt
1564 * many files: Changed initialization: many init functions are not needed any
1565 more since we now rely on the compiler initializing global and static
1568 2007-10-06 Simon Goldschmidt
1569 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1570 to enqueue the received pbufs so that multiple packets can be reassembled
1571 simultaneously and no static reassembly buffer is needed.
1573 2007-10-05 Simon Goldschmidt
1574 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1575 all netifs (or ports) can use it.
1577 2007-10-05 Frédéric Bernon
1578 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1579 common function to reduce a little bit the footprint (for all functions using
1580 only the "netif" parameter).
1582 2007-10-03 Frédéric Bernon
1583 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1584 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1585 a little bit the footprint (for all functions using only the "netif" parameter).
1587 2007-09-15 Frédéric Bernon
1588 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1589 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1590 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1591 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1593 2007-09-10 Frédéric Bernon
1594 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1595 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1596 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1597 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1598 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1599 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1600 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1601 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1602 when it's queried (any direct call to "sysuptime" is changed by a call to
1603 snmp_get_sysuptime).
1605 2007-09-09 Frédéric Bernon, Bill Florac
1606 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1607 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1608 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1609 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1610 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1611 the next query message to receive the matching multicast streams).
1613 2007-09-08 Frédéric Bernon
1614 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1615 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1616 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1617 Enable to access to these fields with LWIP_TCP=0.
1619 2007-09-05 Frédéric Bernon
1620 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1621 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1622 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1623 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1624 help to reduce footprint, and to reduce "visibility" on the Internet.
1626 2007-09-05 Frédéric Bernon, Bill Florac
1627 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1628 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1629 parameters have to be provided: a task name, and a task stack size. For this
1630 one, since it's platform dependant, you could define the best one for you in
1631 your lwipopts.h. For port maintainers, you can just add these new parameters
1632 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1635 2007-09-05 Frédéric Bernon
1636 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1637 inside init.c for task #7142 "Sanity check user-configurable values".
1639 2007-09-04 Frédéric Bernon, Bill Florac
1640 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1641 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1642 value). It will avoid potential fragmentation problems, use a counter to know
1643 how many times a group is used on an netif, and free it when all applications
1644 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1645 check if LWIP_IGMP!=0).
1647 2007-09-03 Frédéric Bernon
1648 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1649 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1650 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1651 and/or the "interface" field (for netconn layer), for join/leave operations.
1652 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1653 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1655 2007-08-30 Frédéric Bernon
1656 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1657 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1658 with other API (application based on raw API, or future "socket2" API). Ports
1659 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1661 2007-08-30 Frédéric Bernon, Jonathan Larmour
1662 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1663 user-configurable values".
1665 2007-08-29 Frédéric Bernon
1666 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1667 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1668 spirit than the others modules. Modify some IGMP debug traces.
1670 2007-08-29 Frédéric Bernon
1671 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1672 Add lwip_init function to regroup all modules initializations, and to provide
1673 a place to add code for task #7142 "Sanity check user-configurable values".
1674 Ports maintainers should remove direct initializations calls from their code,
1675 and add init.c in their makefiles. Note that lwip_init() function is called
1676 inside tcpip_init, but can also be used by raw api users since all calls are
1677 disabled when matching options are disabled. Also note that their is new options
1678 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1680 2007-08-26 Marc Boucher
1681 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1682 since they can under certain circumstances be called with an invalid conn
1683 pointer after the connection has been closed (and conn has been freed).
1685 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1686 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1687 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1689 2007-08-22 Frédéric Bernon
1690 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1691 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1693 2007-08-22 Frédéric Bernon
1694 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1695 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1696 name is tcpip_input (we keep the name of 1.2.0 function).
1698 2007-08-17 Jared Grubb
1699 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1700 settings into new memp_std.h and optional user file lwippools.h. This adds
1701 more dynamic mempools, and allows the user to create an arbitrary number of
1702 mempools for mem_malloc.
1704 2007-08-16 Marc Boucher
1705 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1706 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1707 close the connection.
1709 2007-08-16 Marc Boucher
1710 * sockets.c: lwip_accept(): check netconn_peer() error return.
1712 2007-08-16 Marc Boucher
1713 * mem.c, mem.h: Added mem_calloc().
1715 2007-08-16 Marc Boucher
1716 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1717 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1718 and starving other message types.
1719 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1721 2007-08-16 Marc Boucher
1722 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1723 type and flgs (later renamed to flags).
1724 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1725 Improved lwip_recvfrom(). TCP push now propagated.
1727 2007-08-16 Marc Boucher
1728 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1731 2007-08-16 Marc Boucher
1732 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1733 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1734 Added PPPoE support and various PPP improvements.
1736 2007-07-25 Simon Goldschmidt
1737 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1738 making netbuf_copy_partial use this function.
1740 2007-07-25 Simon Goldschmidt
1741 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1742 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1745 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1746 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1747 a link callback in the netif struct, and functions to handle it. Be carefull
1748 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1749 if you want to be sure to be compatible with future changes...
1751 2007-06-30 Frédéric Bernon
1752 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1754 2007-06-21 Simon Goldschmidt
1755 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1756 LWIP_AUTOIP =0 and =1 to remove redundant code.
1758 2007-06-21 Simon Goldschmidt
1759 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1760 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1761 heap. This both prevents memory fragmentation and gives a higher speed
1762 at the cost of more memory consumption. Turned off by default.
1764 2007-06-21 Simon Goldschmidt
1765 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1766 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1767 int to be able to send a bigger buffer than 64K with one time (mainly
1768 used from lwip_send).
1770 2007-06-21 Simon Goldschmidt
1771 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1772 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1774 2007-06-21 Simon Goldschmidt
1775 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1776 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1777 changes on low memory or empty send-buffer.
1779 2007-06-18 Simon Goldschmidt
1780 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1781 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1782 used for ethernet and struct eth_addr already had a defined length of 6).
1784 2007-06-17 Simon Goldschmidt
1785 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1786 to disable UDP checksum generation on transmit.
1788 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1789 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1790 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1791 this macro to check "conn" parameter in api_msg.c functions.
1793 2007-06-11 Simon Goldschmidt
1794 * sockets.c, sockets.h: Added UDP lite support for sockets
1796 2007-06-10 Simon Goldschmidt
1797 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1798 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1801 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1802 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1803 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1804 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1805 (see TODO mark in the source code).
1807 2007-06-09 Simon Goldschmidt
1808 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1809 etharp_output() to match netif->output so etharp_output() can be used
1810 directly as netif->output to save one function call.
1812 2007-06-08 Simon Goldschmidt
1813 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1814 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1815 added initialization of those to ethernetif, slipif and loopif.
1817 2007-05-18 Simon Goldschmidt
1818 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1819 (defaulting to off for now) that can be set to 0 to send fragmented
1820 packets by passing PBUF_REFs down the stack.
1822 2007-05-23 Frédéric Bernon
1823 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1824 connections, such present in patch #5959.
1826 2007-05-23 Frédéric Bernon
1827 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1828 code in only one part...
1830 2007-05-18 Simon Goldschmidt
1831 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1832 elements to overflow. This is achieved by adding some bytes before and after
1833 each pool element (increasing their size, of course), filling them with a
1834 prominent value and checking them on freeing the element.
1835 Set it to 2 to also check every element in every pool each time memp_malloc()
1836 or memp_free() is called (slower but more helpful).
1838 2007-05-10 Simon Goldschmidt
1839 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1840 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1843 2007-05-11 Frédéric Bernon
1844 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1845 Include a function pointer instead of a table index in the message to reduce
1846 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1847 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1849 2007-05-10 Simon Goldschmidt
1850 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1851 \ extern "C" {' in all header files. Now you can write your application using
1852 the lwIP stack in C++ and simply #include the core files. Note I have left
1853 out the netif/ppp/*h header files for now, since I don't know which files are
1854 included by applications and which are for internal use only.
1856 2007-05-09 Simon Goldschmidt
1857 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1858 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1859 situations where some compilers might inline the copy and save a function
1860 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1862 2007-05-08 Simon Goldschmidt
1863 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1864 to be overriden in case the C-library malloc implementation is not protected
1865 against concurrent access.
1867 2007-05-04 Simon Goldschmidt (Atte Kojo)
1868 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1869 multiple packets to the same host.
1871 2007-05-04 Frédéric Bernon, Jonathan Larmour
1872 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1873 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1874 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1875 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1876 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1877 these fields are now renamed "addr" & "port".
1879 2007-04-11 Jonathan Larmour
1880 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1881 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1882 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1883 by the port in sys_arch.h if desired.
1885 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1886 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1887 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1888 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1890 2007-04-05 Frédéric Bernon
1891 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1893 2007-04-04 Simon Goldschmidt
1894 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1895 use this for and architecture-independent form to tell the compiler you intentionally
1896 are not using this variable. Can be overriden in cc.h.
1898 2007-03-28 Frédéric Bernon
1899 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1900 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1901 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1902 It will be used by DHCP to register a client hostname, but can also be use when you call
1905 2007-03-28 Frédéric Bernon
1906 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1907 initialize a network interface's flag with. It tell this interface is an ethernet
1908 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1909 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1911 2007-03-26 Frédéric Bernon, Jonathan Larmour
1912 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1913 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1914 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1915 is done in tcpip_init function.
1917 2007-03-22 Frédéric Bernon
1918 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1919 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1920 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1921 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1922 but never used. Fix msg_in.c with the correct #if test for a stat display.
1924 2007-03-21 Kieran Mansley
1925 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1926 Provides callback on netif up/down state change.
1928 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1929 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1930 ip.c, netif.h, tcpip.c, opt.h:
1931 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1932 filter per all network interfaces. Declare a new function in netif to enable to
1933 control the MAC filter (to reduce lwIP traffic processing).
1935 2007-03-11 Frédéric Bernon
1936 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1937 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1938 unless you know what you're doing (default are RFC1122 compliant). Note
1939 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1941 2007-03-08 Frédéric Bernon
1942 * tcp.h: Keepalive values can be configured at compile time, but don't change
1943 this unless you know what you're doing (default are RFC1122 compliant).
1945 2007-03-08 Frédéric Bernon
1946 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1947 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1948 on UDP sockets/netconn.
1950 2007-03-08 Simon Goldschmidt
1951 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1953 2007-03-06 Frédéric Bernon
1954 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1955 Implement SO_RCVTIMEO on UDP sockets/netconn.
1957 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1958 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1959 on the stack and remove the API msg type from memp
1961 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1962 * sockets.h, sockets.c: Move socket initialization to new
1963 lwip_socket_init() function.
1964 NOTE: this changes the API with ports. Ports will have to be
1965 updated to call lwip_socket_init() now.
1967 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1968 * api_lib.c: Use memcpy in netbuf_copy_partial.
1973 2008-03-17 Frédéric Bernon, Ed Kerekes
1974 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1975 some problems to fill the IP header on some targets, use now the
1976 ip.h macros to do it).
1978 2008-03-13 Frédéric Bernon
1979 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1980 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1981 TCP connection caused a crash. Note that using (lwip_)recvfrom
1982 like this is a bit slow and that using (lwip)getpeername is the
1983 good lwip way to do it (so, using recv is faster on tcp sockets).
1985 2008-03-12 Frédéric Bernon, Jonathan Larmour
1986 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1987 recv_raw() does not consume data", and the ping sample (with
1988 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1989 returned the IP payload, without the IP header).
1991 2008-03-04 Jonathan Larmour
1992 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1993 and/or warnings on some systems where mem_size_t and size_t differ.
1994 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1996 2008-03-04 Kieran Mansley (contributions by others)
1997 * Numerous small compiler error/warning fixes from contributions to
1998 mailing list after 1.3.0 release candidate made.
2000 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2001 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2003 2008-01-15 Kieran Mansley
2004 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2005 prevented from sending by a small send window, not just a zero
2008 2008-01-09 Jonathan Larmour
2009 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2010 conflict with Linux system headers.
2012 2008-01-06 Jonathan Larmour
2013 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2014 address entirely on receiving a DHCPNAK, and restarting discovery.
2016 2007-12-21 Simon Goldschmidt
2017 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2018 is not protected" by using new macros for interlocked access to modify/test
2019 netconn->recv_avail.
2021 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2022 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2024 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2025 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2026 of silly window avoidance and prevent lwIP from shrinking the window)
2028 2007-12-04 Simon Goldschmidt
2029 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2030 data packet was lost): add assert that all segment lists are empty in
2031 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2032 state from LAST_ACK in tcp_process
2034 2007-12-02 Simon Goldschmidt
2035 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2036 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2037 has to be set to 0 in lwipopts.h
2039 2007-12-02 Simon Goldschmidt
2040 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2041 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2042 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2043 This is a fix for thread-safety and allocates all items needed for a netconn
2044 when the netconn is created.
2046 2007-11-30 Simon Goldschmidt
2047 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2048 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2049 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2050 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2052 2007-11-27 Simon Goldschmidt
2053 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2054 letting ip_route only use netifs that are up.
2056 2007-11-27 Simon Goldschmidt
2057 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2058 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2059 sockets block most operations once they have seen a fatal error.
2061 2007-11-27 Simon Goldschmidt
2062 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2063 netif to send as an argument (to be able to send on netifs that are down).
2065 2007-11-26 Simon Goldschmidt
2066 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2069 2007-11-21 Simon Goldschmidt
2070 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2071 Fixed the nagle algorithm; nagle now also works for all raw API applications
2072 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2074 2007-11-12 Frédéric Bernon
2075 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2076 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2077 context in do_getaddr.
2079 2007-11-10 Simon Goldschmidt
2080 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2081 happen any time). Now the packet simply isn't enqueued when out of memory.
2083 2007-11-01 Simon Goldschmidt
2084 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2085 TCP_MSS if that is smaller) as long as no MSS option is received from the
2088 2007-11-01 Simon Goldschmidt
2089 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2090 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2091 sending our configured TCP_MSS instead of the one received).
2093 2007-11-01 Simon Goldschmidt
2094 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2095 calculated based on the configured TCP_MSS, not on the MSS option received
2098 2007-10-09 Simon Goldschmidt
2099 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2100 short and also was generated wrong if checksum coverage != tot_len;
2101 receive: checksum was calculated wrong if checksum coverage != tot_len
2103 2007-10-08 Simon Goldschmidt
2104 * mem.c: lfree was not updated in mem_realloc!
2106 2007-10-07 Frédéric Bernon
2107 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2108 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2109 this change cause an API breakage for netconn_addr, since a parameter
2110 type change. Any compiler should cause an error without any changes in
2111 yours netconn_peer calls (so, it can't be a "silent change"). It also
2112 reduce a little bit the footprint for socket layer (lwip_getpeername &
2113 lwip_getsockname use now a common lwip_getaddrname function since
2114 netconn_peer & netconn_addr have the same parameters).
2116 2007-09-20 Simon Goldschmidt
2117 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2118 by checking tcp_tw_pcbs also
2120 2007-09-19 Simon Goldschmidt
2121 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2123 2007-09-15 Mike Kleshov
2124 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2126 2007-09-06 Frédéric Bernon
2127 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2128 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2129 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2130 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2132 2007-08-30 Frédéric Bernon
2133 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2134 and fix some coding style.
2136 2007-08-28 Frédéric Bernon
2137 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2138 kind of packets. These packets are considered like Ethernet packets (payload
2139 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2140 are considered like IP packets (payload pointing to iphdr).
2142 2007-08-27 Frédéric Bernon
2143 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2144 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2145 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2147 2007-08-24 Kieran Mansley
2148 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2149 compiler (Paradigm C++)
2151 2007-08-09 Frédéric Bernon, Bill Florac
2152 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2153 Introduce IGMP_STATS to centralize statistics management.
2155 2007-08-09 Frédéric Bernon, Bill Florac
2156 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2157 packet on a udp pcb binded on an netif's IP address, and not on "any".
2159 2007-08-09 Frédéric Bernon, Bill Florac
2160 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2161 This is mainly on using lookup/lookfor, and some coding styles...
2163 2007-07-26 Frédéric Bernon (and "thedoctor")
2164 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2166 2007-07-25 Simon Goldschmidt
2167 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2168 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2169 (tcp_output is called again later from tcp timers).
2171 2007-07-25 Simon Goldschmidt
2172 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2173 copy_from_pbuf, which illegally modified the given pbuf.
2175 2007-07-25 Simon Goldschmidt
2176 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2177 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2179 2007-07-24 Simon Goldschmidt
2180 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2181 correct state (must be CLOSED).
2183 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2184 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2185 allocation. It now returns NULL.
2187 2007-07-13 Frédéric Bernon
2188 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2191 2007-07-13 Frédéric Bernon
2192 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2193 because current code doesn't follow rawapi.txt documentation.
2195 2007-07-13 Kieran Mansley
2196 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2197 out of sequence processing of received packets
2199 2007-07-03 Simon Goldschmidt
2200 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2201 assumption is made that this pbuf is in one piece (i.e. not chained). These
2202 assumptions clash with the possibility of converting to fully pool-based
2203 pbuf implementations, where PBUF_RAM pbufs might be chained.
2205 2007-07-03 Simon Goldschmidt
2206 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2207 when closing tcp netconns: removed conn->sem, less context switches when
2208 closing, both netconn_close and netconn_delete should safely close tcp
2211 2007-07-02 Simon Goldschmidt
2212 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2213 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2214 to cache ARP table indices with each pcb instead of single-entry cache for
2217 2007-07-02 Simon Goldschmidt
2218 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2219 warnings when assigning to smaller types.
2221 2007-06-28 Simon Goldschmidt
2222 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2224 2007-06-28 Simon Goldschmidt
2225 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2226 a segment contained chained pbufs)
2228 2007-06-28 Frédéric Bernon
2229 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2230 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2231 possible to define this macro in your own lwipopts.h to always use C library's
2232 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2234 2007-06-28 Frédéric Bernon
2235 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2236 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2237 in api_lib/api_msg (use pointers and not type with table, etc...)
2239 2007-06-26 Simon Goldschmidt
2240 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2242 2007-06-25 Simon Goldschmidt
2243 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2244 for udp packets with no matching pcb.
2246 2007-06-25 Simon Goldschmidt
2247 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2248 could get udp input packets if the remote side matched.
2250 2007-06-13 Simon Goldschmidt
2251 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2252 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2254 2007-06-13 Simon Goldschmidt
2255 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2256 -> netconn_new_..() does not allocate a new connection for unsupported
2259 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2260 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2261 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2263 2007-06-13 Frédéric Bernon, Matthias Weisser
2264 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2265 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2266 some macro names collision with some OS macros.
2268 2007-06-11 Simon Goldschmidt
2269 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2270 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2271 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2274 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2275 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2276 where TCP flags wasn't initialized in tcp_keepalive.
2278 2007-06-03 Simon Goldschmidt
2279 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2280 registered, p->payload was modified without modifying p->len if sending
2281 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2283 2007-06-03 Simon Goldschmidt
2284 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2285 re-used the input pbuf even if that didn't have enough space to include the
2286 link headers. Now the space is tested and a new pbuf is allocated for the
2287 echo response packet if the echo request pbuf isn't big enough.
2289 2007-06-01 Simon Goldschmidt
2290 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2292 2007-05-23 Frédéric Bernon
2293 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2294 allocated by do_listen if success) and netconn_accept errors handling. In
2295 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2296 by ASSERT, except for netconn_delete.
2298 2007-05-23 Frédéric Bernon
2299 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2300 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2301 directly close the recvmbox).
2303 2007-05-22 Simon Goldschmidt
2304 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2305 bound but unconnected (and non-listening) tcp_pcbs.
2307 2007-05-22 Frédéric Bernon
2308 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2309 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2310 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2311 like "sys_timeout" in their application threads.
2313 2007-05-22 Frédéric Bernon
2314 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2315 which parameters are used by which do_xxx function, and to avoid "misusing"
2316 parameters (patch #5938).
2318 2007-05-22 Simon Goldschmidt
2319 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2320 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2321 is only 8 bits wide. This affects the api, as there, the protocol was
2324 2007-05-18 Simon Goldschmidt
2325 * memp.c: addition to patch #5913: smaller pointer was returned but
2326 memp_memory was the same size -> did not save memory.
2328 2007-05-16 Simon Goldschmidt
2329 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2332 2007-05-16 Simon Goldschmidt
2333 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2334 as the one of the netif used for sending to prevent sending from old
2335 addresses after a netif address gets changed (partly fixes bug #3168).
2337 2007-05-16 Frédéric Bernon
2338 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2339 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2340 tcpip_init) because we have to be sure that network interfaces are already
2341 added (mac filter is updated only in igmp_init for the moment).
2343 2007-05-16 Simon Goldschmidt
2344 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2345 into sys_arch_sem_wait calls to prevent timers from running while waiting
2346 for the heap. This fixes bug #19167.
2348 2007-05-13 Simon Goldschmidt
2349 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2350 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2353 2007-05-07 Simon Goldschmidt
2354 * mem.c: Another attempt to fix bug #17922.
2356 2007-05-04 Simon Goldschmidt
2357 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2358 implementation so that it can be reused (don't allocate the target
2359 pbuf inside pbuf_copy()).
2361 2007-05-04 Simon Goldschmidt
2362 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2363 to save a little RAM (next pointer of memp is not used while not in pool).
2366 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2369 2007-04-23 Simon Goldschmidt
2370 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2371 in NULL reference for incoming TCP packets". Loopif has to be configured
2372 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2373 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2374 putting packets on a list that is fed to the stack by calling loopif_poll()
2375 (single-thread / NO_SYS / polling environment where e.g.
2376 netif->input() = ip_input).
2378 2007-04-17 Jonathan Larmour
2379 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2380 the difference between two u16_t's.
2381 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2382 MEMP_NUM_NETCONN in sockets.c right now.
2384 2007-04-12 Jonathan Larmour
2385 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2387 2007-04-12 Kieran Mansley
2388 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2389 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2391 2007-04-11 Simon Goldschmidt
2392 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2393 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2394 pbuf.c: removed functions no needed any more (by etharp).
2396 2007-04-11 Kieran Mansley
2397 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2398 "Constant is long" warnings with 16bit compilers. Contributed by
2399 avatar@mmlab.cse.yzu.edu.tw
2401 2007-04-05 Frédéric Bernon, Jonathan Larmour
2402 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2403 the mailbox is active". Now, the post is only done during a connect, and do_send,
2404 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2406 2007-04-03 Frédéric Bernon
2407 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2408 packets. See patch #5834.
2410 2007-03-30 Frédéric Bernon
2411 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2412 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2414 2007-03-30 Frédéric Bernon
2415 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2416 others environment defines (these were too "generic").
2418 2007-03-28 Frédéric Bernon
2419 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2420 result and can cause a crash. lwip_send now check netbuf_ref result.
2422 2007-03-28 Simon Goldschmidt
2423 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2424 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2425 defined. This is the way it should have been already (looking at
2428 2007-03-28 Kieran Mansley
2429 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2430 IP and TCP headers *and* physical link headers
2432 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2433 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2434 to send some garbage. It is not a definitive solution, but the patch does solve
2435 the problem for most cases.
2437 2007-03-22 Frédéric Bernon
2438 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2440 2007-03-22 Frédéric Bernon
2441 * api_lib.c: somes resources couldn't be freed if there was errors during
2442 netconn_new_with_proto_and_callback.
2444 2007-03-22 Frédéric Bernon
2445 * ethernetif.c: update netif->input calls to check return value. In older ports,
2446 it's a good idea to upgrade them, even if before, there could be another problem
2447 (access to an uninitialized mailbox).
2449 2007-03-21 Simon Goldschmidt
2450 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2451 by casting to unsigned).
2453 2007-03-21 Frédéric Bernon
2454 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2455 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2456 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2457 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2458 faster and more reliable communication between api_lib and tcpip.
2460 2007-03-21 Frédéric Bernon
2461 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2463 2007-03-21 Frédéric Bernon
2464 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2466 2007-03-21 Kieran Mansley
2467 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2470 2007-03-21 Kieran Mansley
2471 * Fix all uses of pbuf_header to check the return value. In some
2472 cases just assert if it fails as I'm not sure how to fix them, but
2473 this is no worse than before when they would carry on regardless
2476 2007-03-21 Kieran Mansley
2477 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2478 comment out missing header include in icmp.c
2480 2007-03-20 Frédéric Bernon
2481 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2482 synchronized with memp.h.
2484 2007-03-20 Frédéric Bernon
2485 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2486 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2487 network interfaces. Also fix a compiler warning.
2489 2007-03-20 Kieran Mansley
2490 * udp.c: Only try and use pbuf_header() to make space for headers if
2491 not a ROM or REF pbuf.
2493 2007-03-19 Frédéric Bernon
2494 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2497 2007-03-19 Frédéric Bernon
2498 * Remove unimplemented "memp_realloc" function from memp.h.
2500 2007-03-11 Simon Goldschmidt
2501 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2504 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2505 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2506 (missing `const' qualifier in socket functions), to get more compatible to
2507 standard POSIX sockets.
2509 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2510 * sockets.c: Add asserts inside bind, connect and sendto to check input
2511 parameters. Remove excessive set_errno() calls after get_socket(), because
2512 errno is set inside of get_socket(). Move last sock_set_errno() inside
2515 2007-03-09 Simon Goldschmidt
2516 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2517 was allocated too small.
2519 2007-03-06 Simon Goldschmidt
2520 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2521 the stack from concurrent access.
2523 2007-03-06 Frédéric Bernon, Dmitry Potapov
2524 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2525 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2527 2007-03-06 Simon Goldschmidt
2528 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2529 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2531 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2532 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2533 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2534 Allow to do ARP processing for incoming packets inside tcpip_thread
2535 (protecting ARP layer against concurrent access). You can also disable
2536 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2537 Older ports have to use tcpip_ethinput.
2539 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2540 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2541 from pointer target type"
2543 2007-03-05 Frédéric Bernon
2544 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2545 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2547 2007-03-04 Frédéric Bernon
2548 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2551 2007-03-04 Frédéric Bernon
2552 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2554 The api_msg struct stay on the stack (not moved to netconn struct).
2556 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2557 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2558 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2559 Also fixed cast warning in pbuf_alloc()
2561 2007-03-04 Simon Goldschmidt
2562 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2563 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2565 2007-03-03 Frédéric Bernon
2566 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2567 It is static, and never used in udp.c except udp_init().
2569 2007-03-02 Simon Goldschmidt
2570 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2571 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2572 initialized before tcpip_thread is running (e.g. before OS is started)
2574 2007-03-02 Frédéric Bernon
2575 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2578 2007-02-28 Kieran Mansley
2579 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2580 outside the region of the pbuf by pbuf_header()
2582 2007-02-28 Kieran Mansley
2583 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2584 when supplied timeout is also non-zero
2588 2006-12-05 Leon Woestenberg
2589 * CHANGELOG: Mention STABLE-1.2.0 release.
2593 2006-12-01 Christiaan Simons
2594 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2595 Note this is a workaround. Currently I have no other options left.
2597 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2598 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2599 to include/lwip/opt.h.
2600 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2601 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2602 * opt.h: Add above new options.
2604 2006-08-18 Christiaan Simons
2605 * tcp_{in,out}.c: added SNMP counters.
2606 * ipv4/ip.c: added SNMP counters.
2607 * ipv4/ip_frag.c: added SNMP counters.
2609 2006-08-08 Christiaan Simons
2610 * etharp.{c,h}: added etharp_find_addr() to read
2611 (stable) ethernet/IP address pair from ARP table
2613 2006-07-14 Christiaan Simons
2614 * mib_structs.c: added
2615 * include/lwip/snmp_structs.h: added
2616 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2618 2006-07-06 Christiaan Simons
2619 * snmp/asn1_{enc,dec}.c added
2621 * snmp/msg_{in,out}.c added
2622 * include/lwip/snmp_asn1.h added
2623 * include/lwip/snmp_msg.h added
2624 * doc/snmp_agent.txt added
2626 2006-03-29 Christiaan Simons
2627 * inet.c, inet.h: Added platform byteswap support.
2628 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2629 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2633 2006-11-30 Christiaan Simons
2634 * dhcp.c: Fixed false triggers of request_timeout.
2636 2006-11-28 Christiaan Simons
2637 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2639 2006-10-11 Christiaan Simons
2640 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2641 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2642 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2643 identifier from 170 to 136 (bug #17574).
2645 2006-10-10 Christiaan Simons
2646 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2648 2006-08-17 Christiaan Simons
2649 * udp.c: Fixed bug #17200, added check for broadcast
2650 destinations for PCBs bound to a unicast address.
2652 2006-08-07 Christiaan Simons
2653 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2655 2006-06-27 Christiaan Simons
2656 * api_msg.c: Applied patch for cold case (bug #11135).
2657 In accept_function() ensure newconn->callback is always initialized.
2659 2006-06-15 Christiaan Simons
2660 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2661 facilitate printing of mem_size_t and u16_t statistics.
2663 2006-06-14 Christiaan Simons
2664 * api_msg.c: Applied patch #5146 to handle allocation failures
2665 in accept() by Kevin Lawson.
2667 2006-05-26 Christiaan Simons
2668 * api_lib.c: Removed conn->sem creation and destruction
2669 from netconn_write() and added sys_sem_new to netconn_new_*.
2673 2006-03-03 Christiaan Simons
2674 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2675 access and added pbuf_alloc() return value checks.
2677 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2678 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2679 now handled by the checksum routine properly.
2681 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2682 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2683 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2685 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2686 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2687 submitted by Mitrani Hiroshi.
2689 2005-12-15 Christiaan Simons
2690 * inet.c: Disabled the added summing routine to preserve code space.
2692 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2693 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2694 Added Curt McDowell's optimized checksumming routine for future
2695 inclusion. Need to create test case for unaliged, aligned, odd,
2696 even length combination of cases on various endianess machines.
2698 2005-12-09 Christiaan Simons
2699 * inet.c: Rewrote standard checksum routine in proper portable C.
2701 2005-11-25 Christiaan Simons
2702 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2703 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2704 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2706 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2707 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2708 routine by Peter Jolasson.
2709 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2711 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2712 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2713 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2715 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2716 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2718 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2719 * udp.c: UDP pcb->recv() was called even when it was NULL.
2723 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2724 * etharp.*: Disabled multiple packets on the ARP queue.
2725 This clashes with TCP queueing.
2727 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2728 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2729 Halved the ARP period, doubled the period counts.
2730 ETHARP_MAX_PENDING now should be at least 2. This prevents
2731 the counter from reaching 0 right away (which would allow
2732 too little time for ARP responses to be received).
2734 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2735 * dhcp.c: Decline messages were not multicast but unicast.
2736 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2737 Do not try hard to insert arbitrary packet's source address,
2738 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2739 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2740 querying an address will see it appear in the cache (DHCP could
2741 suffer from this when a server invalidly gave an in-use address.)
2742 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2743 comparing network addresses (identifiers), not the network masks
2745 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2746 IP address actually belongs to the network of the given interface.
2748 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2749 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2753 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2754 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2755 even if one is already pending, if the rcv_wnd is above a threshold
2756 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2757 delayed ACK in order to open the window if the stack is only receiving data.
2759 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2760 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2762 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2763 * etharp.c: Make sure the first pbuf queued on an ARP entry
2764 is properly ref counted.
2766 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2767 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2768 warnings about comparison.
2769 * pbuf.c: Stopped compiler complaining of empty if statement
2770 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2771 * tcp.c: Stopped compiler complaining of empty if statement
2772 when LWIP_DEBUGF() empty.
2773 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2774 * inet.c: Added a couple of casts to quiet the compiler.
2775 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2777 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2778 * inet.c: Made data types consistent in inet_ntoa().
2779 Added casts for return values of checksum routines, to pacify compiler.
2780 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2781 Small corrections to some debugging statements, to pacify compiler.
2783 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2784 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2785 * ethernetif.c Updated low_level_output() to match prototype for
2786 netif->linkoutput and changed low_level_input() similarly for consistency.
2787 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2788 of raw_recv() in raw.h and so avoid compiler error.
2789 * sockets.c: Added trivial (int) cast to keep compiler happier.
2790 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2796 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2797 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2798 your cc.h file defines this either 1 or 0. If non-defined,
2800 * .c: Added <string.h> and <errno.h> includes where used.
2801 * etharp.c: Made some array indices unsigned.
2803 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2804 * netif.*: Added netif_set_up()/down().
2805 * dhcp.c: Changes to restart program flow.
2807 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2808 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2809 single-pass lookup for different candidates. Should exploit locality.
2811 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2812 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2813 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2814 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2815 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2819 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2820 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2821 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2822 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2823 is to prefix the 14-bit Ethernet headers with two padding bytes.
2825 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2826 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2827 * etharp.c: Fixed the case where the packet that initiates the ARP request
2828 is not queued, and gets lost. Fixed the case where the packets destination
2829 address is already known; we now always queue the packet and perform an ARP
2836 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2837 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2838 * Fixed two possible NULL references in rare cases.
2844 * Fixed DHCP which did not include the IP address in DECLINE messages.
2848 * etharp.c has been hauled over a bit.
2854 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2855 * Packets sent from ARP queue had invalid source hardware address.
2859 * Pass-by ARP requests do now update the cache.
2863 * No longer dependent on ctype.h.
2864 * New socket options.
2865 * Raw IP pcb support.
2871 * Some debug formatters and casts fixed.
2872 * Numereous fixes in PPP.
2876 * DEBUGF now is LWIP_DEBUGF
2877 * pbuf_dechain() has been re-enabled.
2878 * Mentioned the changed use of CVS branches in README.
2884 * Fixed pool pbuf memory leak in pbuf_alloc().
2885 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2886 Reported by Savin Zlobec.
2888 * PBUF_POOL chains had their tot_len field not set for non-first
2889 pbufs. Fixed in pbuf_alloc().
2893 * Added PPP stack contributed by Marc Boucher
2897 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2899 * ARP queueuing now queues the latest packet instead of the first.
2900 This is the RFC recommended behaviour, but can be overridden in
2907 * TCP has been fixed to deal with the new use of the pbuf->ref
2910 * DHCP dhcp_inform() crash bug fixed.
2914 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2915 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2916 Implemented by David Haas.
2922 * The packet buffer implementation has been enhanced to support
2923 zero-copy and copy-on-demand for packet buffers which have their
2924 payloads in application-managed memory.
2925 Implemented by David Haas.
2927 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2928 if an outgoing packet can be directly sent on the link, or perform
2929 a copy-on-demand when necessary.
2931 The application can safely assume the packet is sent, and the RAM
2932 is available to the application directly after calling udp_send()
2933 or similar function.
2937 * ARP_QUEUEING should now correctly work for all cases, including
2939 Implemented by Leon Woestenberg.
2943 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2944 to a '0.0.0.0' IP address.
2946 * The packet buffer implementation is changed. The pbuf->ref counter
2947 meaning has changed, and several pbuf functions have been
2948 adapted accordingly.
2950 * netif drivers have to be changed to set the hardware address length field
2951 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2952 See the contrib/ports/c16x cs8900 driver as a driver example.
2954 * netif's have a dhcp field that must be initialized to NULL by the driver.
2955 See the contrib/ports/c16x cs8900 driver as a driver example.
2957 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2958 logged in CVS but have not been explained here.
2960 (0.5.3) Changes since version 0.5.2
2964 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2965 threads because it wasn't protected by semaphores.
2969 * struct ip_addr now packed.
2971 * The name of the time variable in arp.c has been changed to ctime
2972 to avoid conflicts with the time() function.
2974 (0.5.2) Changes since version 0.5.1
2978 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2982 * A bug in tcp_parseopt() could cause the stack to hang because of a
2983 malformed TCP option.
2985 * The address of new connections in the accept() function in the BSD
2986 socket library was not handled correctly.
2988 * pbuf_dechain() did not update the ->tot_len field of the tail.
2990 * Aborted TCP connections were not handled correctly in all
2995 * All protocol header structs are now packed.
2997 * The ->len field in the tcp_seg structure now counts the actual
2998 amount of data, and does not add one for SYN and FIN segments.
3000 (0.5.1) Changes since version 0.5.0
3004 * Possible to run as a user process under Linux.
3006 * Preliminary support for cross platform packed structs.
3008 * ARP timer now implemented.
3012 * TCP output queue length was badly initialized when opening
3015 * TCP delayed ACKs were not sent correctly.
3017 * Explicit initialization of BSS segment variables.
3019 * read() in BSD socket library could drop data.
3021 * Problems with memory alignment.
3023 * Situations when all TCP buffers were used could lead to
3026 * TCP MSS option wasn't parsed correctly.
3028 * Problems with UDP checksum calculation.
3030 * IP multicast address tests had endianess problems.
3032 * ARP requests had wrong destination hardware address.
3036 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3038 * A ->linkoutput() member was added to struct netif.
3040 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3042 * ntoh* macros are now null definitions for big endian CPUs.
3044 (0.5.0) Changes since version 0.4.2
3048 * Redesigned operating system emulation layer to make porting easier.
3050 * Better control over TCP output buffers.
3052 * Documenation added.
3056 * Locking issues in buffer management.
3058 * Bugfixes in the sequential API.
3060 * IP forwarding could cause memory leakage. This has been fixed.
3064 * Directory structure somewhat changed; the core/ tree has been
3067 (0.4.2) Changes since version 0.4.1
3071 * Experimental ARP implementation added.
3073 * Skeleton Ethernet driver added.
3075 * Experimental BSD socket API library added.
3079 * In very intense situations, memory leakage could occur. This has
3084 * Variables named "data" and "code" have been renamed in order to
3085 avoid name conflicts in certain compilers.
3087 * Variable++ have in appliciable cases been translated to ++variable
3088 since some compilers generate better code in the latter case.
3090 (0.4.1) Changes since version 0.4
3094 * TCP: Connection attempts time out earlier than data
3095 transmissions. Nagle algorithm implemented. Push flag set on the
3096 last segment in a burst.
3098 * UDP: experimental support for UDP-Lite extensions.
3102 * TCP: out of order segments were in some cases handled incorrectly,
3103 and this has now been fixed. Delayed acknowledgements was broken
3104 in 0.4, has now been fixed. Binding to an address that is in use
3105 now results in an error. Reset connections sometimes hung an
3106 application; this has been fixed.
3108 * Checksum calculation sometimes failed for chained pbufs with odd
3109 lengths. This has been fixed.
3111 * API: a lot of bug fixes in the API. The UDP API has been improved
3112 and tested. Error reporting and handling has been
3113 improved. Logical flaws and race conditions for incoming TCP
3114 connections has been found and removed.
3116 * Memory manager: alignment issues. Reallocating memory sometimes
3117 failed, this has been fixed.
3119 * Generic library: bcopy was flawed and has been fixed.
3123 * API: all datatypes has been changed from generic ones such as
3124 ints, to specified ones such as u16_t. Functions that return
3125 errors now have the correct type (err_t).
3127 * General: A lot of code cleaned up and debugging code removed. Many
3128 portability issues have been fixed.
3130 * The license was changed; the advertising clause was removed.
3134 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3135 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3138 (0.4) Changes since version 0.3.1
3140 * Memory management has been radically changed; instead of
3141 allocating memory from a shared heap, memory for objects that are
3142 rapidly allocated and deallocated is now kept in pools. Allocation
3143 and deallocation from those memory pools is very fast. The shared
3144 heap is still present but is used less frequently.
3146 * The memory, memory pool, and packet buffer subsystems now support
3147 4-, 2-, or 1-byte alignment.
3149 * "Out of memory" situations are handled in a more robust way.
3151 * Stack usage has been reduced.
3153 * Easier configuration of lwIP parameters such as memory usage,
3154 TTLs, statistics gathering, etc. All configuration parameters are
3155 now kept in a single header file "lwipopts.h".
3157 * The directory structure has been changed slightly so that all
3158 architecture specific files are kept under the src/arch
3161 * Error propagation has been improved, both in the protocol modules
3164 * The code for the RTXC architecture has been implemented, tested
3167 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3168 the Internet checksum modules.
3170 * Bugs related to porting between a 32-bit and a 16-bit architecture
3171 have been found and corrected.
3173 * The license has been changed slightly to conform more with the
3174 original BSD license, including the advertisement clause.
3176 (0.3.1) Changes since version 0.3
3178 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3179 RAM never returned the RAM when the pbuf was deallocated.
3181 * TCP congestion control, window updates and retransmissions did not
3182 work correctly. This has now been fixed.
3184 * Bugfixes in the API.
3186 (0.3) Changes since version 0.2
3188 * New and improved directory structure. All include files are now
3189 kept in a dedicated include/ directory.
3191 * The API now has proper error handling. A new function,
3192 netconn_err(), now returns an error code for the connection in
3195 * Improvements in the memory management subsystem. The system now
3196 keeps a pointer to the lowest free memory block. A new function,
3197 mem_malloc2() tries to allocate memory once, and if it fails tries
3198 to free some memory and retry the allocation.
3200 * Much testing has been done with limited memory
3201 configurations. lwIP now does a better job when overloaded.
3203 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3205 * Many bugfixes in the TCP code:
3207 - Fixed a bug in tcp_close().
3209 - The TCP receive window was incorrectly closed when out of
3210 sequence segments was received. This has been fixed.
3212 - Connections are now timed-out of the FIN-WAIT-2 state.
3214 - The initial congestion window could in some cases be too
3215 large. This has been fixed.
3217 - The retransmission queue could in some cases be screwed up. This
3220 - TCP RST flag now handled correctly.
3222 - Out of sequence data was in some cases never delivered to the
3223 application. This has been fixed.
3225 - Retransmitted segments now contain the correct acknowledgment
3226 number and advertised window.
3228 - TCP retransmission timeout backoffs are not correctly computed
3229 (ala BSD). After a number of retransmissions, TCP now gives up
3232 * TCP connections now are kept on three lists, one for active
3233 connections, one for listening connections, and one for
3234 connections that are in TIME-WAIT. This greatly speeds up the fast
3235 timeout processing for sending delayed ACKs.
3237 * TCP now provides proper feedback to the application when a
3238 connection has been successfully set up.
3240 * More comments have been added to the code. The code has also been
3241 somewhat cleaned up.
3243 (0.2) Initial public release.