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 2011-10-09: Simon Goldschmidt
73 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
75 2011-09-27: Simon Goldschmidt
76 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
78 2011-09-27: Simon Goldschmidt
79 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
81 2011-09-27: Simon Goldschmidt
82 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
84 2011-09-24: Simon Goldschmidt
85 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
87 2011-09-23: Simon Goldschmidt
88 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
89 the last packet including FIN can lose data
91 2011-09-22: Simon Goldschmidt
92 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
95 2011-09-21: Simon Goldschmidt
96 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
99 2011-09-20: Simon Goldschmidt
100 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
102 2011-09-11: Simon Goldschmidt
103 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
106 2011-09-09: Simon Goldschmidt
107 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
110 2011-09-03: Simon Goldschmidt
111 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
112 is aggregated and sent to application
114 2011-09-01: Simon Goldschmidt
115 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
118 2011-09-01: Simon Goldschmidt
119 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
121 2011-08-24: Simon Goldschmidt
122 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
124 2011-08-24: Simon Goldschmidt
125 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
126 accept() on UDP connections
128 2011-08-24: Simon Goldschmidt
129 * sockets.h: fixed bug #34057 socklen_t should be a typedef
131 2011-08-24: Simon Goldschmidt
132 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
134 2011-08-24: Simon Goldschmidt
135 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
137 2011-08-24: Simon Goldschmidt
138 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
140 2011-08-22: Simon Goldschmidt
141 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
142 merely prevents nagle from not transmitting fast after closing.)
144 2011-07-22: Simon Goldschmidt
145 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
146 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
147 lwip_send() sends as much as possible for non-blocking sockets
149 2011-07-22: Simon Goldschmidt
150 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
151 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
152 at regular intervals from main level.
154 2011-07-21: Simon Goldschmidt
155 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
156 sending an ARP request when an ARP entry is used in the last minute before
159 2011-07-04: Simon Goldschmidt
160 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
162 2011-06-26: Simon Goldschmidt
163 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
164 updating its documentation only.
166 2011-06-26: Simon Goldschmidt
167 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
170 2011-06-26: Simon Goldschmidt
171 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
179 2011-03-27: Simon Goldschmidt
180 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
181 calculate it in tcp_zero_window_probe (the only place where it was used).
183 2010-11-21: Simon Goldschmidt
184 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
187 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
188 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
189 IP_MULTICAST_LOOP at socket- and raw-API level.
191 2010-06-16: Simon Goldschmidt
192 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
193 link-layer-addressed UDP traffic to be received while a netif is down (just
194 like DHCP during configuration)
196 2010-05-22: Simon Goldschmidt
197 * many many files: bug #27352: removed packing from ip_addr_t, the packed
198 version is now only used in protocol headers. Added global storage for
199 current src/dest IP address while in input functions.
201 2010-05-16: Simon Goldschmidt
202 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
203 calculation (and use them throughout the stack where applicable)
205 2010-05-16: Simon Goldschmidt
206 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
207 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
209 2010-05-16: Simon Goldschmidt
210 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
211 MEMP pool instead of the heap
213 2010-05-13: Simon Goldschmidt
214 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
215 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
216 packets to more than one pcb.
218 2010-05-02: Simon Goldschmidt
219 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
220 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
222 2010-04-30: Simon Goldschmidt
223 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
224 take a precalculated checksum, added pbuf_fill_chksum() to copy data
225 into a pbuf and at the same time calculating the checksum for that data
227 2010-04-29: Simon Goldschmidt
228 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
229 2-byte-aligned IP addresses and MAC addresses
231 2010-04-28: Patch by Bill Auerbach
232 * ip.c: Inline generating IP checksum to save a function call
234 2010-04-14: Simon Goldschmidt
235 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
236 tcpip_thread processes messages or timeouts to implement a watchdog.
238 2010-03-28: Simon Goldschmidt
239 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
240 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
242 2010-03-27: Simon Goldschmidt
243 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
244 etharp_query to prevent unnecessary function calls (inspired by
247 2010-03-20: Simon Goldschmidt
248 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
249 since the linker cannot do this automatically to save space.
251 2010-03-20: Simon Goldschmidt
252 * opt.h, etharp.c/.h: Added support for static ARP table entries
254 2010-03-14: Simon Goldschmidt
255 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
256 when creating TCP segments, not when (re-)transmitting them.
258 2010-03-07: Simon Goldschmidt
259 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
260 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
261 This should speed up receiving data on sockets as the select code in
262 event_callback is only executed when select is waiting.
264 2010-03-06: Simon Goldschmidt
265 * tcp_out.c: task #7013 (Create option to have all packets delivered to
266 netif->output in one piece): Always copy to try to create single pbufs
269 2010-03-06: Simon Goldschmidt
270 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
271 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
272 for tcp netconns to receive pbufs, not netbufs; use that function
275 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
276 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
277 Work on tcp_enqueue: Don't waste memory when chaining segments,
278 added option TCP_OVERSIZE to prevent creating many small pbufs when
279 calling tcp_write with many small blocks of data. Instead, pbufs are
280 allocated larger than needed and the space is used for later calls to
283 2010-02-21: Simon Goldschmidt
284 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
287 2010-02-21: Simon Goldschmidt
288 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
289 implementation of tcp to make API usage cleare to application programmers
291 2010-02-14: Simon Goldschmidt/Stephane Lesage
292 * ip_addr.h: Improved some defines working on ip addresses, added faster
293 macro to copy addresses that cannot be NULL
295 2010-02-13: Simon Goldschmidt
296 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
297 blocking send operation)
299 2010-02-12: Simon Goldschmidt
300 * sockets.c/.h: Added a minimal version of posix fctl() to have a
301 standardised way to set O_NONBLOCK for nonblocking sockets.
303 2010-02-12: Simon Goldschmidt
304 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
305 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
306 and dhcp work with user-allocated structs instead of callin mem_malloc
308 2010-02-12: Simon Goldschmidt/Jeff Barber
309 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
310 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
312 2010-02-12: Simon Goldschmidt
313 * sys layer: task #10139 (Prefer statically allocated memory): converted
314 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
315 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
316 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
317 to let sys.h use binary semaphores instead of mutexes - as before)
319 2010-02-09: Simon Goldschmidt (Simon Kallweit)
320 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
321 (Restart system timeout handling)
323 2010-02-09: Simon Goldschmidt
324 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
325 netif.c) - loopif does not have to be created by the port any more,
326 just define LWIP_HAVE_LOOPIF to 1.
328 2010-02-08: Simon Goldschmidt
329 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
330 inet_ntoa_r/ipaddr_ntoa_r
332 2010-02-08: Simon Goldschmidt
333 * netif.h: Added netif_s/get_igmp_mac_filter() macros
335 2010-02-05: Simon Goldschmidt
336 * netif.h: Added function-like macros to get/set the hostname on a netif
338 2010-02-04: Simon Goldschmidt
339 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
340 make changing the actual implementation behind the typedef easier.
342 2010-02-01: Simon Goldschmidt
343 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
344 for allocating memory when getaddrinfo() is called.
346 2010-01-31: Simon Goldschmidt
347 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
348 them once instead of parsing for every option. This also removes
349 the need for mem_malloc from dhcp_recv and makes it possible to
350 correctly retrieve the BOOTP file.
352 2010-01-30: simon Goldschmidt
353 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
356 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
357 * api.h, api_msg.c, sockets.c: Added except set support in select
360 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
361 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
362 Add non-blocking support for connect (partly from patch #6860),
363 plus many cleanups in socket & netconn API.
365 2010-01-27: Simon Goldschmidt
366 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
367 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
369 2010-01-26: Simon Goldschmidt
370 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
372 2010-01-14: Simon Goldschmidt
373 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
374 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
376 2010-01-13: Simon Goldschmidt
377 * mem.c: The heap now may be moved to user-defined memory by defining
378 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
379 (patch #6966 and bug #26133)
381 2010-01-10: Simon Goldschmidt (Bill Auerbach)
382 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
385 2010-01-10: Simon Goldschmidt
386 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
387 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
389 2009-12-31: Simon Goldschmidt
390 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
391 added timers.c/.h: Separated timer implementation from semaphore/mbox
392 implementation, moved timer implementation to timers.c/.h, timers are
393 now only called from tcpip_thread or by explicitly checking them.
396 2009-12-27: Simon Goldschmidt
397 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
398 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
403 2011-04-20: Simon Goldschmidt
404 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
406 2011-04-13: Simon Goldschmidt
407 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
408 using ports in the IANA private/dynamic range (49152 through 65535).
410 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
411 * etharp.h/.c: Fixed broken VLAN support.
413 2011-03-27: Simon Goldschmidt
414 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
415 pcbs) by checking if the pcb was bound (local_port != 0).
417 2011-03-27: Simon Goldschmidt
418 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
420 2011-03-27: Simon Goldschmidt
421 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
422 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
424 2011-03-27: Simon Goldschmidt
425 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
426 is present never times out) by starting retransmission timer before checking
429 2011-03-22: Simon Goldschmidt
430 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
431 calling sio_read_abort() if the file descriptor is valid.
433 2011-03-14: Simon Goldschmidt
434 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
435 more than once can render a socket useless) since it mainly involves changing
436 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
438 2011-03-13: Simon Goldschmidt
439 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
440 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
441 use EALRADY instead of -1
443 2011-03-13: Simon Goldschmidt
444 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
445 connection has been aborted by err_tcp (since this is not a normal closing
448 2011-03-13: Simon Goldschmidt
449 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
450 with pcb->state != CLOSED
452 2011-02-17: Simon Goldschmidt
453 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
456 2011-02-17: Simon Goldschmidt
457 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
459 2011-01-24: Simon Goldschmidt
460 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
462 2010-12-02: Simon Goldschmidt
463 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
465 2010-11-23: Simon Goldschmidt
466 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
467 LWIP_SO_RCVBUF and ioctl/FIONREAD.
469 2010-11-23: Simon Goldschmidt
470 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
471 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
473 2010-11-23: Simon Goldschmidt
474 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
475 refusing 'refused_data' again.
477 2010-11-22: Simon Goldschmidt
478 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
479 after a successful nonblocking connection.
481 2010-11-22: Simon Goldschmidt
482 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
483 must be sent link-local
485 2010-11-22: Simon Goldschmidt
486 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
489 2010-11-20: Simon Goldschmidt
490 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
492 2010-11-20: Simon Goldschmidt
493 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
494 resemble other stacks.
496 2010-11-20: Simon Goldschmidt
497 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
498 no-copy TCP writes will never succeed.
500 2010-11-20: Simon Goldschmidt
501 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
502 not match documentation: return ERR_ARG instead of ERR_VAL if not
503 initialized or wrong argument.
505 2010-10-20: Simon Goldschmidt
506 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
508 2010-10-05: Simon Goldschmidt
509 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
510 replugging the network cable after an AutoIP address was assigned.
512 2010-08-10: Simon Goldschmidt
513 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
515 2010-08-03: Simon Goldschmidt
516 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
518 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
519 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
520 endian architectures)
522 2010-07-28: Simon Goldschmidt
523 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
526 2010-07-27: Simon Goldschmidt
527 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
528 harm but never did anything
530 2010-07-21: Simon Goldschmidt
531 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
534 2010-07-16: Kieran Mansley
535 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
537 2010-07-10: Simon Goldschmidt
538 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
540 2010-06-30: Simon Goldschmidt
541 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
544 2010-06-28: Kieran Mansley
545 * timers.c remove unportable printing of C function pointers
547 2010-06-24: Simon Goldschmidt
548 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
549 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
551 2010-06-24: Simon Goldschmidt
552 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
553 implemented shutdown at socket level.
555 2010-06-21: Simon Goldschmidt
556 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
557 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
558 custom pbufs that reference other (original) pbufs. Additionally set
559 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
561 2010-06-15: Simon Goldschmidt
562 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
564 2010-06-14: Simon Goldschmidt
565 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
567 2010-06-12: Simon Goldschmidt
568 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
571 2010-05-17: Simon Goldschmidt
572 * netdb.c: Correctly NULL-terminate h_addr_list
574 2010-05-16: Simon Goldschmidt
575 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
576 "symbol already defined" i.e. when linking to winsock
578 2010-05-05: Simon Goldschmidt
579 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
582 2010-04-21: Simon Goldschmidt
583 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
586 2010-03-28: Luca Ceresoli
587 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
589 2010-03-27: Luca Ceresoli
590 * mib2.c: patch #7130: remove meaningless const qualifiers
592 2010-03-26: Simon Goldschmidt
593 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
595 2010-03-26: Simon Goldschmidt
596 * various files: Fixed compiling with different options disabled (TCP/UDP),
597 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
599 2010-03-25: Simon Goldschmidt
600 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
602 2010-03-25: Simon Goldschmidt
603 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
604 overrunning our rcv_wnd in ooseq case.
606 2010-03-22: Simon Goldschmidt
607 * tcp.c: tcp_listen() did not copy the pcb's prio.
609 2010-03-19: Simon Goldschmidt
610 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
612 2010-03-14: Simon Goldschmidt
613 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
614 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
615 and basing PBUF_LINK_HLEN on it.
617 2010-03-08: Simon Goldschmidt
618 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
619 when assiging routable address): when checking incoming packets and
620 aborting existing connection on address change, filter out link-local
623 2010-03-06: Simon Goldschmidt
624 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
626 2010-03-06: Simon Goldschmidt
627 * ipv4/ip.c: Don't try to forward link-local addresses
629 2010-03-06: Simon Goldschmidt
630 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
633 2010-03-05: Simon Goldschmidt
634 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
637 2010-03-05: Simon Goldschmidt
638 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
639 into multiple calls to tcp_write.
641 2010-02-21: Simon Goldschmidt
642 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
643 the implementation of DNS_USES_STATIC_BUF==1)
645 2010-02-20: Simon Goldschmidt
646 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
647 close() vs. shutdown(). Now the application does not get any more
648 recv callbacks after calling tcp_close(). Added tcp_shutdown().
650 2010-02-19: Simon Goldschmidt
651 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
652 confusion with realloc()
654 2010-02-15: Simon Goldschmidt/Stephane Lesage
655 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
658 2010-02-14: Simon Goldschmidt
659 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
660 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
661 admin-status of a netif are up
663 2010-02-14: Simon Goldschmidt
664 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
665 reception and is not really necessary
667 2010-02-14: Simon Goldschmidt
668 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
669 request was directed as us (RFC 826, Packet Reception), otherwise
670 only update existing entries; internalized some functions
672 2010-02-14: Simon Goldschmidt
673 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
674 disabled on netif used for PPPoE) by adding a new netif flag
675 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
676 device but prevents usage of ARP (so that ethernet_input can be used
679 2010-02-12: Simon Goldschmidt
680 * netif.c: netif_set_link_up/down: only do something if the link state
683 2010-02-12: Simon Goldschmidt/Stephane Lesage
684 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
687 2010-02-12: Simon Goldschmidt
688 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
690 2010-02-09: Simon Goldschmidt
691 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
692 (recv() makes receive window update for data that wasn't received by
695 2010-02-09: Simon Goldschmidt/Stephane Lesage
696 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
697 or any netconn_recv() error)
699 2010-02-09: Simon Goldschmidt
700 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
702 2010-02-09: Simon Goldschmidt
703 * netif.c: For loopback packets, adjust the stats- and snmp-counters
704 for the loopback netif.
706 2010-02-08: Simon Goldschmidt
707 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
708 since they are not used anywhere else.
710 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
711 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
712 (patch from bug #28798)
714 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
715 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
716 another bug when LWIP_RAND() returns zero.
718 2010-02-04: Simon Goldschmidt
719 * nearly every file: Use macros defined in ip_addr.h (some of them new)
720 to work with IP addresses (preparation for bug #27352 - Change ip_addr
721 from struct to typedef (u32_t) - and better code).
723 2010-01-31: Simon Goldschmidt
724 * netif.c: Don't call the link-callback from netif_set_up/down() since
725 this invalidly retriggers DHCP.
727 2010-01-29: Simon Goldschmidt
728 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
729 portability file inet.h and its contents from the stack: moved htonX-
730 functions to def.h (and the new def.c - they are not ipv4 dependent),
731 let inet.h depend on ip_addr.h and not the other way round.
732 This fixes bug #28732.
734 2010-01-28: Kieran Mansley
735 * tcp.c: Ensure ssthresh >= 2*MSS
737 2010-01-27: Simon Goldschmidt
738 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
739 callback can lead to accessing unallocated memory. As a consequence,
740 ERR_ABRT means the application has called tcp_abort()!
742 2010-01-25: Simon Goldschmidt
743 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
744 not implemented in SNMP): write-only or not-accessible are still
745 returned by getnext (though not by get)
747 2010-01-24: Simon Goldschmidt
748 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
749 not use reserved C/C++ keywords
751 2010-01-23: Simon Goldschmidt
752 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
755 2010-01-21: Simon Goldschmidt
756 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
757 if tcp_enqueue fails) both in raw- and netconn-API
759 2010-01-19: Simon Goldschmidt
760 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
762 2010-01-18: Iordan Neshev/Simon Goldschmidt
763 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
764 bugfix backports from 2.4.x.
766 2010-01-18: Simon Goldschmidt
767 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
769 2010-01-17: Simon Goldschmidt
770 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
771 task #10102: "netconn: clean up conn->err threading issues" by adding
772 error return value to struct api_msg_msg
774 2010-01-17: Simon Goldschmidt
775 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
776 to return err_t (bugs #27709 and #28087)
778 2010-01-14: Simon Goldschmidt
779 * ...: Use typedef for function prototypes throughout the stack.
781 2010-01-13: Simon Goldschmidt
782 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
783 window = 0) by correctly draining recvmbox/acceptmbox
785 2010-01-11: Simon Goldschmidt
786 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
787 erroneous callbacks) by copying the code from recent pppd
789 2010-01-10: Simon Goldschmidt
790 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
792 2010-01-10: Simon Goldschmidt
793 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
795 2010-01-08: Simon Goldschmidt
796 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
798 2010-01-08: Simon Goldschmidt
799 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
800 passed to dns_local_addhost() might be volatile
802 2010-01-07: Simon Goldschmidt
803 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
805 2010-01-06: Simon Goldschmidt
806 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
808 2009-12-31: Simon Goldschmidt
809 * many ppp files: Reorganised PPP source code from ucip structure to pppd
810 structure to easily compare our code against the pppd code (around v2.3.1)
812 2009-12-27: Simon Goldschmidt
813 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
821 2009-10-27 Simon Goldschmidt/Stephan Lesage
822 * netifapi.c/.h: Added netifapi_netif_set_addr()
824 2009-10-07 Simon Goldschmidt/Fabian Koch
825 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
826 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
828 2009-08-26 Simon Goldschmidt/Simon Kallweit
829 * slipif.c/.h: bug #26397: SLIP polling support
831 2009-08-25 Simon Goldschmidt
832 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
833 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
835 2009-08-25 Simon Goldschmidt
836 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
838 2009-08-24 Jakob Stoklund Olesen
839 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
840 to netif_set_link_up().
842 2009-08-23 Simon Goldschmidt
843 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
844 to a human-readable string.
848 2009-12-24: Kieran Mansley
849 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
852 2009-12-06: Simon Goldschmidt
853 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
854 be statically allocated (like in ucip)
856 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
857 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
859 2009-12-03: Simon Goldschmidt
860 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
861 could have non-zero length
863 2009-12-02: Simon Goldschmidt
864 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
865 tcp_input_pcb until after calling the pcb's callbacks
867 2009-11-29: Simon Goldschmidt
868 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
869 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
871 2009-11-29: Simon Goldschmidt
872 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
873 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
875 2009-11-26: Simon Goldschmidt
876 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
879 2009-11-26: Simon Goldschmidt
880 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
881 algorithm at PCB level
883 2009-11-22: Simon Goldschmidt
884 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
886 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
887 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
888 reusing time-wait pcb
890 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
891 * sockets.c: Fixed bug #28062: Data received directly after accepting
892 does not wake up select
894 2009-11-11: Simon Goldschmidt
895 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
897 2009-10-30: Simon Goldschmidt
898 * opt.h: Increased default value for TCP_MSS to 536, updated default
899 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
901 2009-10-28: Kieran Mansley
902 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
903 to follow algorithm from TCP/IP Illustrated
905 2009-10-27: Kieran Mansley
906 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
908 2009-10-25: Simon Goldschmidt
909 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
910 pcb->recv is NULL to keep rcv_wnd correct)
912 2009-10-25: Simon Goldschmidt
913 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
915 2009-10-23: Simon Goldschmidt (David Empson)
916 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
918 2009-10-21: Simon Goldschmidt
919 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
920 trailing 1 byte len (SYN/FIN)
922 2009-10-21: Simon Goldschmidt
923 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
925 2009-10-19: Simon Goldschmidt
926 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
927 conditional code to assert where applicable), check pbuf length before
928 testing for valid reply
930 2009-10-19: Simon Goldschmidt
931 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
932 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
934 2009-10-16: Simon Goldschmidt
935 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
936 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
939 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
940 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
942 2009-10-15: Simon Goldschmidt
943 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
946 2009-10-15: Simon Goldschmidt
947 * autoip.c: Fixed bug #27704: autoip starts with wrong address
948 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
949 of network byte order
951 2009-10-11 Simon Goldschmidt (Jörg Kesten)
952 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
953 which are not consecutive when retransmitting unacked segments
955 2009-10-09 Simon Goldschmidt
956 * opt.h: Fixed default values of some stats to only be enabled if used
957 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
959 2009-08-30 Simon Goldschmidt
960 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
961 function" by checking for loopback before calling ip_frag
963 2009-08-25 Simon Goldschmidt
964 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
966 2009-08-23 Simon Goldschmidt
967 * ppp.c: bug #27078: Possible memory leak in pppInit()
969 2009-08-23 Simon Goldschmidt
970 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
973 2009-08-23 Simon Goldschmidt
974 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
975 Fixed wrong parenthesis, added check in init.c
977 2009-08-23 Simon Goldschmidt
978 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
980 2009-08-23 Simon Goldschmidt
981 * many ppp files: bug #27267: Added include to string.h where needed
983 2009-08-23 Simon Goldschmidt
984 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
991 2009-05-10 Simon Goldschmidt
992 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
993 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
994 one pbuf to help MACs that don't support scatter-gather DMA.
996 2009-05-09 Simon Goldschmidt
997 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
998 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1000 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1001 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1002 extended info about the currently received packet.
1004 2009-04-27 Simon Goldschmidt
1005 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1007 2009-04-25 Simon Goldschmidt
1008 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1009 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1011 2009-04-21 Simon Goldschmidt
1012 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1013 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1014 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1015 as an external function for lookup.
1017 2009-04-15 Simon Goldschmidt
1018 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1020 2009-03-31 Kieran Mansley
1021 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1022 TCP timestamp options, off by default. Rework tcp_enqueue() to
1023 take option flags rather than specified option data
1025 2009-02-18 Simon Goldschmidt
1026 * cc.h: Added printf formatter for size_t: SZT_F
1028 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1029 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1032 2009-02-12 Simon Goldschmidt
1033 * init.h: Added LWIP_VERSION to get the current version of the stack
1035 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1036 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1037 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1040 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1041 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1042 is only used by UDPLITE at present, so conditionalise it.
1044 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1045 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1046 "seed" address. This should reduce AUTOIP conflicts if
1047 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1049 2008-10-02 Jonathan Larmour and Rishi Khan
1050 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1053 2008-06-30 Simon Goldschmidt
1054 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1055 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1056 mem_free to run between mem_malloc iterations. Added illegal counter for
1059 2008-06-27 Simon Goldschmidt
1060 * stats.h/.c, some other files: patch #6483: stats module improvement:
1061 Added defines to display each module's statistic individually, added stats
1062 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1064 2008-06-17 Simon Goldschmidt
1065 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1066 (define LWIP_ERR_T in cc.h)
1068 2008-06-17 Simon Goldschmidt
1069 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1072 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1073 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1074 modified version of patch # 6370: Moved loopif code to netif.c so that
1075 loopback traffic is supported on all netifs (all local IPs).
1076 Added option to limit loopback packets for each netifs.
1080 2009-08-12 Kieran Mansley
1081 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1082 out of window or out of order properly
1084 2009-08-12 Kieran Mansley
1085 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1087 2009-07-28 Simon Goldschmidt
1088 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1090 2009-07-27 Kieran Mansley
1091 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1093 2009-07-09 Kieran Mansley
1094 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1095 recv_avail and don't increment counters until message successfully
1098 2009-06-25 Kieran Mansley
1099 * api_msg.c api.h: BUG26722: initialise netconn write variables
1102 2009-06-25 Kieran Mansley
1103 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1105 2009-06-25 Kieran Mansley
1106 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1107 simultaneous close behaviour, and make snd_nxt have the same meaning
1110 2009-05-12 Simon Goldschmidt
1111 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1112 arp_table / uses etharp_query" by adding etharp_gratuitous()
1114 2009-05-12 Simon Goldschmidt
1115 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1116 to the IP header (used by igmp_ip_output_if)
1118 2009-05-06 Simon Goldschmidt
1119 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1120 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1122 2009-05-05 Simon Goldschmidt
1123 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1126 2009-05-04 Simon Goldschmidt
1127 * init.c: snmp was not initialized in lwip_init()
1129 2009-05-04 Frédéric Bernon
1130 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1132 2009-05-03 Simon Goldschmidt
1133 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1134 (and unsent->next == NULL)
1136 2009-05-02 Simon Goldschmidt
1137 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1138 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1140 2009-05-02 Simon Goldschmidt
1141 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1143 2009-05-01 Simon Goldschmidt
1144 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1146 2009-05-01 Simon Goldschmidt
1147 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1149 2009-04-29 Frédéric Bernon
1150 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1151 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1152 of broadcast packets even when this option wasn't set. Port maintainers
1153 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1154 If you want this option also filter broadcast on recv operations, you also
1155 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1157 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1158 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1159 DHCP/AUTOIP cooperation
1161 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1162 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1163 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1164 right place in tcp_output and tcp_rexmit).
1166 2009-04-25 Simon Goldschmidt
1167 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1168 when debugging": memp_sizes contained the wrong sizes (including sanity
1169 regions); memp pools for MEM_USE_POOLS were too small
1171 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1172 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1173 behavior, with with ip address string not ended by a '\0', a space or a
1176 2009-04-19 Simon Goldschmidt
1177 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1178 pcb->err is called, not pcb->connected (with an error code).
1180 2009-04-19 Simon Goldschmidt
1181 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1182 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1184 2009-04-19 Simon Goldschmidt
1185 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1186 in the header pbuf, not the data pbuf)
1188 2009-04-18 Simon Goldschmidt
1189 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1191 2009-04-15 Simon Goldschmidt
1192 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1194 2009-04-15 Simon Goldschmidt
1195 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1197 2009-04-15 Simon Goldschmidt
1198 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1199 ip_hinted_output() (for smaller code mainly)
1201 2009-04-15 Simon Goldschmidt
1202 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1204 2009-04-15 Simon Goldschmidt
1205 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1206 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1207 is big enough in dhcp_start
1209 2009-04-15 Simon Goldschmidt
1210 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1212 2009-04-15 Simon Goldschmidt
1213 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1215 2009-04-15 Simon Goldschmidt
1216 * sockets.c: bug #26121: set_errno can be overridden
1218 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1219 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1222 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1223 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1226 2009-03-31 Kieran Mansley
1227 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1228 updates are calculated and sent (BUG20515)
1230 * tcp_in.c: cope with SYN packets received during established states,
1231 and retransmission of initial SYN.
1233 * tcp_out.c: set push bit correctly when tcp segments are merged
1235 2009-03-27 Kieran Mansley
1236 * tcp_out.c set window correctly on probes (correcting change made
1239 2009-03-26 Kieran Mansley
1240 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1241 connections where no reset required (bug #25622)
1243 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1246 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1247 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1248 too small depending on MEM_ALIGNMENT
1250 2009-02-16 Simon Goldschmidt
1251 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1252 converted size argument of netconn_write to 'size_t'
1254 2009-02-16 Simon Goldschmidt
1255 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1256 by moving accept callback function pointer to TCP_PCB_COMMON
1258 2009-02-12 Simon Goldschmidt
1259 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1262 2009-02-11 Simon Goldschmidt
1263 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1265 2009-02-11 Simon Goldschmidt
1266 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1267 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1269 2009-02-10 Simon Goldschmidt
1270 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1271 Accepts_pending is decrease on a corresponding listen pcb when a connection
1272 in state SYN_RCVD is close.
1274 2009-01-28 Jonathan Larmour
1275 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1278 2008-12-19 Simon Goldschmidt
1279 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1281 2008-12-10 Tamas Somogyi, Frédéric Bernon
1282 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1283 port uses deleted netbuf.
1285 2008-10-18 Simon Goldschmidt
1286 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1289 2008-10-15 Simon Goldschmidt
1290 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1291 by packing the struct ip_reass_helper.
1293 2008-10-03 David Woodhouse, Jonathan Larmour
1294 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1296 2008-10-02 Jonathan Larmour
1297 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1298 padding is included.
1300 2008-09-30 Jonathan Larmour
1301 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1302 assertion check that addrlen isn't NULL.
1304 2008-09-30 Jonathan Larmour
1305 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1307 2008-08-26 Simon Goldschmidt
1308 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1309 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1311 2008-08-14 Simon Goldschmidt
1312 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1313 tcp_close returns != ERR_OK)
1315 2008-07-08 Frédéric Bernon
1316 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1317 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1319 2008-06-24 Jonathan Larmour
1320 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1321 if tcp_seg_copy fails.
1323 2008-06-17 Simon Goldschmidt
1324 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1325 and created defines for swapping bytes and folding u32 to u16.
1327 2008-05-30 Kieran Mansley
1328 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1329 rather than rcv_ann_wnd when deciding if packets are in-window.
1330 Contributed by <arasmussen@consultant.datasys.swri.edu>
1332 2008-05-30 Kieran Mansley
1333 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1334 passing as function pointers when MEM_LIBC_MALLOC is defined.
1336 2008-05-09 Jonathan Larmour
1337 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1338 stop it being treated as a fatal error.
1340 2008-04-15 Simon Goldschmidt
1341 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1344 2008-03-27 Simon Goldschmidt
1345 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1346 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1347 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1348 or heap memory from interrupt context
1350 2008-03-26 Simon Goldschmidt
1351 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1352 host sent a zero mss as TCP option.
1359 2008-03-10 Jonathan Larmour
1360 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1361 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1363 2008-01-22 Frédéric Bernon
1364 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1365 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1367 2008-01-14 Frédéric Bernon
1368 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1369 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1370 tcp_recv callback (see rawapi.txt).
1372 2008-01-14 Frédéric Bernon, Marc Chaland
1373 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1375 2008-01-12 Frédéric Bernon
1376 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1377 netconn::sem per netconn::op_completed like suggested for the task #7490
1378 "Add return value to sys_mbox_post".
1380 2008-01-12 Frédéric Bernon
1381 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1382 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1383 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1385 2008-01-10 Frédéric Bernon
1386 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1387 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1388 "blocking" ("block" parameter = 1).
1390 2008-01-10 Frédéric Bernon
1391 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1392 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1393 "Add return value to sys_mbox_post".
1395 2008-01-05 Frédéric Bernon
1396 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1397 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1398 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1399 indicate the number of pointers query by the mailbox. There is three defines
1400 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1401 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1402 parameter in your implementation, but to ignore it to keep the previous behavior.
1403 The new sys_mbox_trypost function return a value to know if the mailbox is
1404 full or if the message is posted. Take a look to sys_arch.txt for more details.
1405 This new function is used in tcpip_input (so, can be called in an interrupt
1406 context since the function is not blocking), and in recv_udp and recv_raw.
1408 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1409 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1410 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1411 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1412 documentation in the rawapi.txt file.
1414 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1415 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1417 2007-12-31 Frédéric Bernon, Luca Ceresoli
1418 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1419 in autoip". The change in etharp_raw could be removed, since all calls to
1420 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1421 wrong in the future.
1423 2007-12-30 Frédéric Bernon, Tom Evans
1424 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1425 Filtering" reported by Tom Evans.
1427 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1428 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1429 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1430 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1431 keep accepting new connections.
1433 2007-12-13 Frédéric Bernon
1434 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1435 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1437 2007-12-12 Frédéric Bernon
1438 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1439 are the one which have ram usage.
1441 2007-12-05 Frédéric Bernon
1442 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1443 set of variables (=0) or a local one (=1). In this last case, your port should
1444 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1445 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1447 2007-12-03 Simon Goldschmidt
1448 * ip.c: ip_input: check if a packet is for inp first before checking all other
1449 netifs on netif_list (speeds up packet receiving in most cases)
1451 2007-11-30 Simon Goldschmidt
1452 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1453 UDP: move a (connected) pcb selected for input to the front of the list of
1454 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1457 2007-11-28 Simon Goldschmidt
1458 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1460 2007-11-25 Simon Goldschmidt
1461 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1464 2007-11-24 Simon Goldschmidt
1465 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1466 to the new file netdb.c; included lwip_getaddrinfo.
1468 2007-11-21 Simon Goldschmidt
1469 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1470 based on the MTU of the netif used to send. Enabled by default. Disable by
1471 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1473 2007-11-19 Frédéric Bernon
1474 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1475 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1476 copy dns payload to parse the response), return an error if there is no place
1477 for a new query, and fix some minor problems.
1479 2007-11-16 Simon Goldschmidt
1480 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1481 removed files: core/inet.c, core/inet6.c
1482 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1483 inet and chksum part; changed includes in all lwIP files as appropriate
1485 2007-11-16 Simon Goldschmidt
1486 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1487 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1488 (gethostbyname/gethostbyname_r).
1490 2007-11-15 Jim Pettinato, Frédéric Bernon
1491 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1492 requests with RAW api interface. Initialization is done in lwip_init() with
1493 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1494 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1495 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1496 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1497 list with points to improve.
1499 2007-11-06 Simon Goldschmidt
1500 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1501 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1502 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1504 2007-11-06 Simon Goldschmidt
1505 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1506 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1507 implementation from netconn api applications.
1509 2007-11-03 Frédéric Bernon
1510 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1511 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1512 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1513 it. This is a first release which have to be improve for TCP. Note it used the
1514 netconn::recv_avail which need to be more "thread-safe" (note there is already
1515 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1517 2007-11-01 Frédéric Bernon, Marc Chaland
1518 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1519 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1520 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1521 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1522 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1524 2007-10-24 Frédéric Bernon
1525 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1526 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1527 some code (like we have talk in "patch #5919 : Create compile switch to remove
1528 select code"), but it could be done later.
1530 2007-10-08 Simon Goldschmidt
1531 * many files: Changed initialization: many init functions are not needed any
1532 more since we now rely on the compiler initializing global and static
1535 2007-10-06 Simon Goldschmidt
1536 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1537 to enqueue the received pbufs so that multiple packets can be reassembled
1538 simultaneously and no static reassembly buffer is needed.
1540 2007-10-05 Simon Goldschmidt
1541 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1542 all netifs (or ports) can use it.
1544 2007-10-05 Frédéric Bernon
1545 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1546 common function to reduce a little bit the footprint (for all functions using
1547 only the "netif" parameter).
1549 2007-10-03 Frédéric Bernon
1550 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1551 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1552 a little bit the footprint (for all functions using only the "netif" parameter).
1554 2007-09-15 Frédéric Bernon
1555 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1556 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1557 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1558 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1560 2007-09-10 Frédéric Bernon
1561 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1562 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1563 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1564 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1565 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1566 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1567 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1568 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1569 when it's queried (any direct call to "sysuptime" is changed by a call to
1570 snmp_get_sysuptime).
1572 2007-09-09 Frédéric Bernon, Bill Florac
1573 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1574 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1575 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1576 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1577 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1578 the next query message to receive the matching multicast streams).
1580 2007-09-08 Frédéric Bernon
1581 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1582 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1583 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1584 Enable to access to these fields with LWIP_TCP=0.
1586 2007-09-05 Frédéric Bernon
1587 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1588 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1589 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1590 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1591 help to reduce footprint, and to reduce "visibility" on the Internet.
1593 2007-09-05 Frédéric Bernon, Bill Florac
1594 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1595 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1596 parameters have to be provided: a task name, and a task stack size. For this
1597 one, since it's platform dependant, you could define the best one for you in
1598 your lwipopts.h. For port maintainers, you can just add these new parameters
1599 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1602 2007-09-05 Frédéric Bernon
1603 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1604 inside init.c for task #7142 "Sanity check user-configurable values".
1606 2007-09-04 Frédéric Bernon, Bill Florac
1607 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1608 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1609 value). It will avoid potential fragmentation problems, use a counter to know
1610 how many times a group is used on an netif, and free it when all applications
1611 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1612 check if LWIP_IGMP!=0).
1614 2007-09-03 Frédéric Bernon
1615 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1616 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1617 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1618 and/or the "interface" field (for netconn layer), for join/leave operations.
1619 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1620 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1622 2007-08-30 Frédéric Bernon
1623 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1624 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1625 with other API (application based on raw API, or future "socket2" API). Ports
1626 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1628 2007-08-30 Frédéric Bernon, Jonathan Larmour
1629 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1630 user-configurable values".
1632 2007-08-29 Frédéric Bernon
1633 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1634 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1635 spirit than the others modules. Modify some IGMP debug traces.
1637 2007-08-29 Frédéric Bernon
1638 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1639 Add lwip_init function to regroup all modules initializations, and to provide
1640 a place to add code for task #7142 "Sanity check user-configurable values".
1641 Ports maintainers should remove direct initializations calls from their code,
1642 and add init.c in their makefiles. Note that lwip_init() function is called
1643 inside tcpip_init, but can also be used by raw api users since all calls are
1644 disabled when matching options are disabled. Also note that their is new options
1645 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1647 2007-08-26 Marc Boucher
1648 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1649 since they can under certain circumstances be called with an invalid conn
1650 pointer after the connection has been closed (and conn has been freed).
1652 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1653 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1654 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1656 2007-08-22 Frédéric Bernon
1657 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1658 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1660 2007-08-22 Frédéric Bernon
1661 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1662 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1663 name is tcpip_input (we keep the name of 1.2.0 function).
1665 2007-08-17 Jared Grubb
1666 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1667 settings into new memp_std.h and optional user file lwippools.h. This adds
1668 more dynamic mempools, and allows the user to create an arbitrary number of
1669 mempools for mem_malloc.
1671 2007-08-16 Marc Boucher
1672 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1673 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1674 close the connection.
1676 2007-08-16 Marc Boucher
1677 * sockets.c: lwip_accept(): check netconn_peer() error return.
1679 2007-08-16 Marc Boucher
1680 * mem.c, mem.h: Added mem_calloc().
1682 2007-08-16 Marc Boucher
1683 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1684 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1685 and starving other message types.
1686 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1688 2007-08-16 Marc Boucher
1689 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1690 type and flgs (later renamed to flags).
1691 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1692 Improved lwip_recvfrom(). TCP push now propagated.
1694 2007-08-16 Marc Boucher
1695 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1698 2007-08-16 Marc Boucher
1699 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1700 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1701 Added PPPoE support and various PPP improvements.
1703 2007-07-25 Simon Goldschmidt
1704 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1705 making netbuf_copy_partial use this function.
1707 2007-07-25 Simon Goldschmidt
1708 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1709 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1712 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1713 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1714 a link callback in the netif struct, and functions to handle it. Be carefull
1715 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1716 if you want to be sure to be compatible with future changes...
1718 2007-06-30 Frédéric Bernon
1719 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1721 2007-06-21 Simon Goldschmidt
1722 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1723 LWIP_AUTOIP =0 and =1 to remove redundant code.
1725 2007-06-21 Simon Goldschmidt
1726 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1727 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1728 heap. This both prevents memory fragmentation and gives a higher speed
1729 at the cost of more memory consumption. Turned off by default.
1731 2007-06-21 Simon Goldschmidt
1732 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1733 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1734 int to be able to send a bigger buffer than 64K with one time (mainly
1735 used from lwip_send).
1737 2007-06-21 Simon Goldschmidt
1738 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1739 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1741 2007-06-21 Simon Goldschmidt
1742 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1743 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1744 changes on low memory or empty send-buffer.
1746 2007-06-18 Simon Goldschmidt
1747 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1748 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1749 used for ethernet and struct eth_addr already had a defined length of 6).
1751 2007-06-17 Simon Goldschmidt
1752 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1753 to disable UDP checksum generation on transmit.
1755 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1756 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1757 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1758 this macro to check "conn" parameter in api_msg.c functions.
1760 2007-06-11 Simon Goldschmidt
1761 * sockets.c, sockets.h: Added UDP lite support for sockets
1763 2007-06-10 Simon Goldschmidt
1764 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1765 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1768 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1769 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1770 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1771 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1772 (see TODO mark in the source code).
1774 2007-06-09 Simon Goldschmidt
1775 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1776 etharp_output() to match netif->output so etharp_output() can be used
1777 directly as netif->output to save one function call.
1779 2007-06-08 Simon Goldschmidt
1780 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1781 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1782 added initialization of those to ethernetif, slipif and loopif.
1784 2007-05-18 Simon Goldschmidt
1785 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1786 (defaulting to off for now) that can be set to 0 to send fragmented
1787 packets by passing PBUF_REFs down the stack.
1789 2007-05-23 Frédéric Bernon
1790 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1791 connections, such present in patch #5959.
1793 2007-05-23 Frédéric Bernon
1794 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1795 code in only one part...
1797 2007-05-18 Simon Goldschmidt
1798 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1799 elements to overflow. This is achieved by adding some bytes before and after
1800 each pool element (increasing their size, of course), filling them with a
1801 prominent value and checking them on freeing the element.
1802 Set it to 2 to also check every element in every pool each time memp_malloc()
1803 or memp_free() is called (slower but more helpful).
1805 2007-05-10 Simon Goldschmidt
1806 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1807 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1810 2007-05-11 Frédéric Bernon
1811 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1812 Include a function pointer instead of a table index in the message to reduce
1813 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1814 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1816 2007-05-10 Simon Goldschmidt
1817 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1818 \ extern "C" {' in all header files. Now you can write your application using
1819 the lwIP stack in C++ and simply #include the core files. Note I have left
1820 out the netif/ppp/*h header files for now, since I don't know which files are
1821 included by applications and which are for internal use only.
1823 2007-05-09 Simon Goldschmidt
1824 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1825 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1826 situations where some compilers might inline the copy and save a function
1827 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1829 2007-05-08 Simon Goldschmidt
1830 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1831 to be overriden in case the C-library malloc implementation is not protected
1832 against concurrent access.
1834 2007-05-04 Simon Goldschmidt (Atte Kojo)
1835 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1836 multiple packets to the same host.
1838 2007-05-04 Frédéric Bernon, Jonathan Larmour
1839 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1840 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1841 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1842 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1843 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1844 these fields are now renamed "addr" & "port".
1846 2007-04-11 Jonathan Larmour
1847 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1848 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1849 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1850 by the port in sys_arch.h if desired.
1852 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1853 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1854 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1855 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1857 2007-04-05 Frédéric Bernon
1858 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1860 2007-04-04 Simon Goldschmidt
1861 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1862 use this for and architecture-independent form to tell the compiler you intentionally
1863 are not using this variable. Can be overriden in cc.h.
1865 2007-03-28 Frédéric Bernon
1866 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1867 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1868 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1869 It will be used by DHCP to register a client hostname, but can also be use when you call
1872 2007-03-28 Frédéric Bernon
1873 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1874 initialize a network interface's flag with. It tell this interface is an ethernet
1875 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1876 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1878 2007-03-26 Frédéric Bernon, Jonathan Larmour
1879 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1880 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1881 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1882 is done in tcpip_init function.
1884 2007-03-22 Frédéric Bernon
1885 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1886 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1887 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1888 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1889 but never used. Fix msg_in.c with the correct #if test for a stat display.
1891 2007-03-21 Kieran Mansley
1892 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1893 Provides callback on netif up/down state change.
1895 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1896 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1897 ip.c, netif.h, tcpip.c, opt.h:
1898 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1899 filter per all network interfaces. Declare a new function in netif to enable to
1900 control the MAC filter (to reduce lwIP traffic processing).
1902 2007-03-11 Frédéric Bernon
1903 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1904 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1905 unless you know what you're doing (default are RFC1122 compliant). Note
1906 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1908 2007-03-08 Frédéric Bernon
1909 * tcp.h: Keepalive values can be configured at compile time, but don't change
1910 this unless you know what you're doing (default are RFC1122 compliant).
1912 2007-03-08 Frédéric Bernon
1913 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1914 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1915 on UDP sockets/netconn.
1917 2007-03-08 Simon Goldschmidt
1918 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1920 2007-03-06 Frédéric Bernon
1921 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1922 Implement SO_RCVTIMEO on UDP sockets/netconn.
1924 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1925 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1926 on the stack and remove the API msg type from memp
1928 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1929 * sockets.h, sockets.c: Move socket initialization to new
1930 lwip_socket_init() function.
1931 NOTE: this changes the API with ports. Ports will have to be
1932 updated to call lwip_socket_init() now.
1934 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1935 * api_lib.c: Use memcpy in netbuf_copy_partial.
1940 2008-03-17 Frédéric Bernon, Ed Kerekes
1941 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1942 some problems to fill the IP header on some targets, use now the
1943 ip.h macros to do it).
1945 2008-03-13 Frédéric Bernon
1946 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1947 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1948 TCP connection caused a crash. Note that using (lwip_)recvfrom
1949 like this is a bit slow and that using (lwip)getpeername is the
1950 good lwip way to do it (so, using recv is faster on tcp sockets).
1952 2008-03-12 Frédéric Bernon, Jonathan Larmour
1953 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1954 recv_raw() does not consume data", and the ping sample (with
1955 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1956 returned the IP payload, without the IP header).
1958 2008-03-04 Jonathan Larmour
1959 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1960 and/or warnings on some systems where mem_size_t and size_t differ.
1961 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1963 2008-03-04 Kieran Mansley (contributions by others)
1964 * Numerous small compiler error/warning fixes from contributions to
1965 mailing list after 1.3.0 release candidate made.
1967 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1968 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1970 2008-01-15 Kieran Mansley
1971 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1972 prevented from sending by a small send window, not just a zero
1975 2008-01-09 Jonathan Larmour
1976 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1977 conflict with Linux system headers.
1979 2008-01-06 Jonathan Larmour
1980 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1981 address entirely on receiving a DHCPNAK, and restarting discovery.
1983 2007-12-21 Simon Goldschmidt
1984 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1985 is not protected" by using new macros for interlocked access to modify/test
1986 netconn->recv_avail.
1988 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1989 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1991 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1992 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1993 of silly window avoidance and prevent lwIP from shrinking the window)
1995 2007-12-04 Simon Goldschmidt
1996 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1997 data packet was lost): add assert that all segment lists are empty in
1998 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1999 state from LAST_ACK in tcp_process
2001 2007-12-02 Simon Goldschmidt
2002 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2003 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2004 has to be set to 0 in lwipopts.h
2006 2007-12-02 Simon Goldschmidt
2007 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2008 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2009 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2010 This is a fix for thread-safety and allocates all items needed for a netconn
2011 when the netconn is created.
2013 2007-11-30 Simon Goldschmidt
2014 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2015 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2016 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2017 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2019 2007-11-27 Simon Goldschmidt
2020 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2021 letting ip_route only use netifs that are up.
2023 2007-11-27 Simon Goldschmidt
2024 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2025 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2026 sockets block most operations once they have seen a fatal error.
2028 2007-11-27 Simon Goldschmidt
2029 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2030 netif to send as an argument (to be able to send on netifs that are down).
2032 2007-11-26 Simon Goldschmidt
2033 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2036 2007-11-21 Simon Goldschmidt
2037 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2038 Fixed the nagle algorithm; nagle now also works for all raw API applications
2039 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2041 2007-11-12 Frédéric Bernon
2042 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2043 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2044 context in do_getaddr.
2046 2007-11-10 Simon Goldschmidt
2047 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2048 happen any time). Now the packet simply isn't enqueued when out of memory.
2050 2007-11-01 Simon Goldschmidt
2051 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2052 TCP_MSS if that is smaller) as long as no MSS option is received from the
2055 2007-11-01 Simon Goldschmidt
2056 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2057 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2058 sending our configured TCP_MSS instead of the one received).
2060 2007-11-01 Simon Goldschmidt
2061 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2062 calculated based on the configured TCP_MSS, not on the MSS option received
2065 2007-10-09 Simon Goldschmidt
2066 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2067 short and also was generated wrong if checksum coverage != tot_len;
2068 receive: checksum was calculated wrong if checksum coverage != tot_len
2070 2007-10-08 Simon Goldschmidt
2071 * mem.c: lfree was not updated in mem_realloc!
2073 2007-10-07 Frédéric Bernon
2074 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2075 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2076 this change cause an API breakage for netconn_addr, since a parameter
2077 type change. Any compiler should cause an error without any changes in
2078 yours netconn_peer calls (so, it can't be a "silent change"). It also
2079 reduce a little bit the footprint for socket layer (lwip_getpeername &
2080 lwip_getsockname use now a common lwip_getaddrname function since
2081 netconn_peer & netconn_addr have the same parameters).
2083 2007-09-20 Simon Goldschmidt
2084 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2085 by checking tcp_tw_pcbs also
2087 2007-09-19 Simon Goldschmidt
2088 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2090 2007-09-15 Mike Kleshov
2091 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2093 2007-09-06 Frédéric Bernon
2094 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2095 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2096 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2097 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2099 2007-08-30 Frédéric Bernon
2100 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2101 and fix some coding style.
2103 2007-08-28 Frédéric Bernon
2104 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2105 kind of packets. These packets are considered like Ethernet packets (payload
2106 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2107 are considered like IP packets (payload pointing to iphdr).
2109 2007-08-27 Frédéric Bernon
2110 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2111 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2112 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2114 2007-08-24 Kieran Mansley
2115 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2116 compiler (Paradigm C++)
2118 2007-08-09 Frédéric Bernon, Bill Florac
2119 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2120 Introduce IGMP_STATS to centralize statistics management.
2122 2007-08-09 Frédéric Bernon, Bill Florac
2123 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2124 packet on a udp pcb binded on an netif's IP address, and not on "any".
2126 2007-08-09 Frédéric Bernon, Bill Florac
2127 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2128 This is mainly on using lookup/lookfor, and some coding styles...
2130 2007-07-26 Frédéric Bernon (and "thedoctor")
2131 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2133 2007-07-25 Simon Goldschmidt
2134 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2135 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2136 (tcp_output is called again later from tcp timers).
2138 2007-07-25 Simon Goldschmidt
2139 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2140 copy_from_pbuf, which illegally modified the given pbuf.
2142 2007-07-25 Simon Goldschmidt
2143 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2144 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2146 2007-07-24 Simon Goldschmidt
2147 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2148 correct state (must be CLOSED).
2150 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2151 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2152 allocation. It now returns NULL.
2154 2007-07-13 Frédéric Bernon
2155 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2158 2007-07-13 Frédéric Bernon
2159 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2160 because current code doesn't follow rawapi.txt documentation.
2162 2007-07-13 Kieran Mansley
2163 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2164 out of sequence processing of received packets
2166 2007-07-03 Simon Goldschmidt
2167 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2168 assumption is made that this pbuf is in one piece (i.e. not chained). These
2169 assumptions clash with the possibility of converting to fully pool-based
2170 pbuf implementations, where PBUF_RAM pbufs might be chained.
2172 2007-07-03 Simon Goldschmidt
2173 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2174 when closing tcp netconns: removed conn->sem, less context switches when
2175 closing, both netconn_close and netconn_delete should safely close tcp
2178 2007-07-02 Simon Goldschmidt
2179 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2180 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2181 to cache ARP table indices with each pcb instead of single-entry cache for
2184 2007-07-02 Simon Goldschmidt
2185 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2186 warnings when assigning to smaller types.
2188 2007-06-28 Simon Goldschmidt
2189 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2191 2007-06-28 Simon Goldschmidt
2192 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2193 a segment contained chained pbufs)
2195 2007-06-28 Frédéric Bernon
2196 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2197 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2198 possible to define this macro in your own lwipopts.h to always use C library's
2199 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2201 2007-06-28 Frédéric Bernon
2202 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2203 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2204 in api_lib/api_msg (use pointers and not type with table, etc...)
2206 2007-06-26 Simon Goldschmidt
2207 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2209 2007-06-25 Simon Goldschmidt
2210 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2211 for udp packets with no matching pcb.
2213 2007-06-25 Simon Goldschmidt
2214 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2215 could get udp input packets if the remote side matched.
2217 2007-06-13 Simon Goldschmidt
2218 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2219 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2221 2007-06-13 Simon Goldschmidt
2222 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2223 -> netconn_new_..() does not allocate a new connection for unsupported
2226 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2227 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2228 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2230 2007-06-13 Frédéric Bernon, Matthias Weisser
2231 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2232 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2233 some macro names collision with some OS macros.
2235 2007-06-11 Simon Goldschmidt
2236 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2237 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2238 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2241 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2242 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2243 where TCP flags wasn't initialized in tcp_keepalive.
2245 2007-06-03 Simon Goldschmidt
2246 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2247 registered, p->payload was modified without modifying p->len if sending
2248 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2250 2007-06-03 Simon Goldschmidt
2251 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2252 re-used the input pbuf even if that didn't have enough space to include the
2253 link headers. Now the space is tested and a new pbuf is allocated for the
2254 echo response packet if the echo request pbuf isn't big enough.
2256 2007-06-01 Simon Goldschmidt
2257 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2259 2007-05-23 Frédéric Bernon
2260 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2261 allocated by do_listen if success) and netconn_accept errors handling. In
2262 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2263 by ASSERT, except for netconn_delete.
2265 2007-05-23 Frédéric Bernon
2266 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2267 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2268 directly close the recvmbox).
2270 2007-05-22 Simon Goldschmidt
2271 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2272 bound but unconnected (and non-listening) tcp_pcbs.
2274 2007-05-22 Frédéric Bernon
2275 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2276 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2277 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2278 like "sys_timeout" in their application threads.
2280 2007-05-22 Frédéric Bernon
2281 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2282 which parameters are used by which do_xxx function, and to avoid "misusing"
2283 parameters (patch #5938).
2285 2007-05-22 Simon Goldschmidt
2286 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2287 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2288 is only 8 bits wide. This affects the api, as there, the protocol was
2291 2007-05-18 Simon Goldschmidt
2292 * memp.c: addition to patch #5913: smaller pointer was returned but
2293 memp_memory was the same size -> did not save memory.
2295 2007-05-16 Simon Goldschmidt
2296 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2299 2007-05-16 Simon Goldschmidt
2300 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2301 as the one of the netif used for sending to prevent sending from old
2302 addresses after a netif address gets changed (partly fixes bug #3168).
2304 2007-05-16 Frédéric Bernon
2305 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2306 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2307 tcpip_init) because we have to be sure that network interfaces are already
2308 added (mac filter is updated only in igmp_init for the moment).
2310 2007-05-16 Simon Goldschmidt
2311 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2312 into sys_arch_sem_wait calls to prevent timers from running while waiting
2313 for the heap. This fixes bug #19167.
2315 2007-05-13 Simon Goldschmidt
2316 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2317 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2320 2007-05-07 Simon Goldschmidt
2321 * mem.c: Another attempt to fix bug #17922.
2323 2007-05-04 Simon Goldschmidt
2324 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2325 implementation so that it can be reused (don't allocate the target
2326 pbuf inside pbuf_copy()).
2328 2007-05-04 Simon Goldschmidt
2329 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2330 to save a little RAM (next pointer of memp is not used while not in pool).
2333 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2336 2007-04-23 Simon Goldschmidt
2337 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2338 in NULL reference for incoming TCP packets". Loopif has to be configured
2339 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2340 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2341 putting packets on a list that is fed to the stack by calling loopif_poll()
2342 (single-thread / NO_SYS / polling environment where e.g.
2343 netif->input() = ip_input).
2345 2007-04-17 Jonathan Larmour
2346 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2347 the difference between two u16_t's.
2348 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2349 MEMP_NUM_NETCONN in sockets.c right now.
2351 2007-04-12 Jonathan Larmour
2352 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2354 2007-04-12 Kieran Mansley
2355 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2356 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2358 2007-04-11 Simon Goldschmidt
2359 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2360 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2361 pbuf.c: removed functions no needed any more (by etharp).
2363 2007-04-11 Kieran Mansley
2364 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2365 "Constant is long" warnings with 16bit compilers. Contributed by
2366 avatar@mmlab.cse.yzu.edu.tw
2368 2007-04-05 Frédéric Bernon, Jonathan Larmour
2369 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2370 the mailbox is active". Now, the post is only done during a connect, and do_send,
2371 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2373 2007-04-03 Frédéric Bernon
2374 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2375 packets. See patch #5834.
2377 2007-03-30 Frédéric Bernon
2378 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2379 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2381 2007-03-30 Frédéric Bernon
2382 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2383 others environment defines (these were too "generic").
2385 2007-03-28 Frédéric Bernon
2386 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2387 result and can cause a crash. lwip_send now check netbuf_ref result.
2389 2007-03-28 Simon Goldschmidt
2390 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2391 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2392 defined. This is the way it should have been already (looking at
2395 2007-03-28 Kieran Mansley
2396 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2397 IP and TCP headers *and* physical link headers
2399 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2400 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2401 to send some garbage. It is not a definitive solution, but the patch does solve
2402 the problem for most cases.
2404 2007-03-22 Frédéric Bernon
2405 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2407 2007-03-22 Frédéric Bernon
2408 * api_lib.c: somes resources couldn't be freed if there was errors during
2409 netconn_new_with_proto_and_callback.
2411 2007-03-22 Frédéric Bernon
2412 * ethernetif.c: update netif->input calls to check return value. In older ports,
2413 it's a good idea to upgrade them, even if before, there could be another problem
2414 (access to an uninitialized mailbox).
2416 2007-03-21 Simon Goldschmidt
2417 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2418 by casting to unsigned).
2420 2007-03-21 Frédéric Bernon
2421 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2422 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2423 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2424 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2425 faster and more reliable communication between api_lib and tcpip.
2427 2007-03-21 Frédéric Bernon
2428 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2430 2007-03-21 Frédéric Bernon
2431 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2433 2007-03-21 Kieran Mansley
2434 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2437 2007-03-21 Kieran Mansley
2438 * Fix all uses of pbuf_header to check the return value. In some
2439 cases just assert if it fails as I'm not sure how to fix them, but
2440 this is no worse than before when they would carry on regardless
2443 2007-03-21 Kieran Mansley
2444 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2445 comment out missing header include in icmp.c
2447 2007-03-20 Frédéric Bernon
2448 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2449 synchronized with memp.h.
2451 2007-03-20 Frédéric Bernon
2452 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2453 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2454 network interfaces. Also fix a compiler warning.
2456 2007-03-20 Kieran Mansley
2457 * udp.c: Only try and use pbuf_header() to make space for headers if
2458 not a ROM or REF pbuf.
2460 2007-03-19 Frédéric Bernon
2461 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2464 2007-03-19 Frédéric Bernon
2465 * Remove unimplemented "memp_realloc" function from memp.h.
2467 2007-03-11 Simon Goldschmidt
2468 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2471 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2472 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2473 (missing `const' qualifier in socket functions), to get more compatible to
2474 standard POSIX sockets.
2476 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2477 * sockets.c: Add asserts inside bind, connect and sendto to check input
2478 parameters. Remove excessive set_errno() calls after get_socket(), because
2479 errno is set inside of get_socket(). Move last sock_set_errno() inside
2482 2007-03-09 Simon Goldschmidt
2483 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2484 was allocated too small.
2486 2007-03-06 Simon Goldschmidt
2487 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2488 the stack from concurrent access.
2490 2007-03-06 Frédéric Bernon, Dmitry Potapov
2491 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2492 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2494 2007-03-06 Simon Goldschmidt
2495 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2496 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2498 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2499 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2500 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2501 Allow to do ARP processing for incoming packets inside tcpip_thread
2502 (protecting ARP layer against concurrent access). You can also disable
2503 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2504 Older ports have to use tcpip_ethinput.
2506 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2507 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2508 from pointer target type"
2510 2007-03-05 Frédéric Bernon
2511 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2512 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2514 2007-03-04 Frédéric Bernon
2515 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2518 2007-03-04 Frédéric Bernon
2519 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2521 The api_msg struct stay on the stack (not moved to netconn struct).
2523 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2524 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2525 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2526 Also fixed cast warning in pbuf_alloc()
2528 2007-03-04 Simon Goldschmidt
2529 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2530 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2532 2007-03-03 Frédéric Bernon
2533 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2534 It is static, and never used in udp.c except udp_init().
2536 2007-03-02 Simon Goldschmidt
2537 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2538 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2539 initialized before tcpip_thread is running (e.g. before OS is started)
2541 2007-03-02 Frédéric Bernon
2542 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2545 2007-02-28 Kieran Mansley
2546 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2547 outside the region of the pbuf by pbuf_header()
2549 2007-02-28 Kieran Mansley
2550 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2551 when supplied timeout is also non-zero
2555 2006-12-05 Leon Woestenberg
2556 * CHANGELOG: Mention STABLE-1.2.0 release.
2560 2006-12-01 Christiaan Simons
2561 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2562 Note this is a workaround. Currently I have no other options left.
2564 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2565 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2566 to include/lwip/opt.h.
2567 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2568 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2569 * opt.h: Add above new options.
2571 2006-08-18 Christiaan Simons
2572 * tcp_{in,out}.c: added SNMP counters.
2573 * ipv4/ip.c: added SNMP counters.
2574 * ipv4/ip_frag.c: added SNMP counters.
2576 2006-08-08 Christiaan Simons
2577 * etharp.{c,h}: added etharp_find_addr() to read
2578 (stable) ethernet/IP address pair from ARP table
2580 2006-07-14 Christiaan Simons
2581 * mib_structs.c: added
2582 * include/lwip/snmp_structs.h: added
2583 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2585 2006-07-06 Christiaan Simons
2586 * snmp/asn1_{enc,dec}.c added
2588 * snmp/msg_{in,out}.c added
2589 * include/lwip/snmp_asn1.h added
2590 * include/lwip/snmp_msg.h added
2591 * doc/snmp_agent.txt added
2593 2006-03-29 Christiaan Simons
2594 * inet.c, inet.h: Added platform byteswap support.
2595 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2596 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2600 2006-11-30 Christiaan Simons
2601 * dhcp.c: Fixed false triggers of request_timeout.
2603 2006-11-28 Christiaan Simons
2604 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2606 2006-10-11 Christiaan Simons
2607 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2608 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2609 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2610 identifier from 170 to 136 (bug #17574).
2612 2006-10-10 Christiaan Simons
2613 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2615 2006-08-17 Christiaan Simons
2616 * udp.c: Fixed bug #17200, added check for broadcast
2617 destinations for PCBs bound to a unicast address.
2619 2006-08-07 Christiaan Simons
2620 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2622 2006-06-27 Christiaan Simons
2623 * api_msg.c: Applied patch for cold case (bug #11135).
2624 In accept_function() ensure newconn->callback is always initialized.
2626 2006-06-15 Christiaan Simons
2627 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2628 facilitate printing of mem_size_t and u16_t statistics.
2630 2006-06-14 Christiaan Simons
2631 * api_msg.c: Applied patch #5146 to handle allocation failures
2632 in accept() by Kevin Lawson.
2634 2006-05-26 Christiaan Simons
2635 * api_lib.c: Removed conn->sem creation and destruction
2636 from netconn_write() and added sys_sem_new to netconn_new_*.
2640 2006-03-03 Christiaan Simons
2641 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2642 access and added pbuf_alloc() return value checks.
2644 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2645 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2646 now handled by the checksum routine properly.
2648 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2649 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2650 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2652 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2653 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2654 submitted by Mitrani Hiroshi.
2656 2005-12-15 Christiaan Simons
2657 * inet.c: Disabled the added summing routine to preserve code space.
2659 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2660 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2661 Added Curt McDowell's optimized checksumming routine for future
2662 inclusion. Need to create test case for unaliged, aligned, odd,
2663 even length combination of cases on various endianess machines.
2665 2005-12-09 Christiaan Simons
2666 * inet.c: Rewrote standard checksum routine in proper portable C.
2668 2005-11-25 Christiaan Simons
2669 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2670 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2671 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2673 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2674 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2675 routine by Peter Jolasson.
2676 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2678 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2679 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2680 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2682 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2683 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2685 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2686 * udp.c: UDP pcb->recv() was called even when it was NULL.
2690 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2691 * etharp.*: Disabled multiple packets on the ARP queue.
2692 This clashes with TCP queueing.
2694 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2695 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2696 Halved the ARP period, doubled the period counts.
2697 ETHARP_MAX_PENDING now should be at least 2. This prevents
2698 the counter from reaching 0 right away (which would allow
2699 too little time for ARP responses to be received).
2701 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2702 * dhcp.c: Decline messages were not multicast but unicast.
2703 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2704 Do not try hard to insert arbitrary packet's source address,
2705 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2706 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2707 querying an address will see it appear in the cache (DHCP could
2708 suffer from this when a server invalidly gave an in-use address.)
2709 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2710 comparing network addresses (identifiers), not the network masks
2712 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2713 IP address actually belongs to the network of the given interface.
2715 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2716 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2720 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2721 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2722 even if one is already pending, if the rcv_wnd is above a threshold
2723 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2724 delayed ACK in order to open the window if the stack is only receiving data.
2726 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2727 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2729 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2730 * etharp.c: Make sure the first pbuf queued on an ARP entry
2731 is properly ref counted.
2733 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2734 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2735 warnings about comparison.
2736 * pbuf.c: Stopped compiler complaining of empty if statement
2737 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2738 * tcp.c: Stopped compiler complaining of empty if statement
2739 when LWIP_DEBUGF() empty.
2740 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2741 * inet.c: Added a couple of casts to quiet the compiler.
2742 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2744 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2745 * inet.c: Made data types consistent in inet_ntoa().
2746 Added casts for return values of checksum routines, to pacify compiler.
2747 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2748 Small corrections to some debugging statements, to pacify compiler.
2750 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2751 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2752 * ethernetif.c Updated low_level_output() to match prototype for
2753 netif->linkoutput and changed low_level_input() similarly for consistency.
2754 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2755 of raw_recv() in raw.h and so avoid compiler error.
2756 * sockets.c: Added trivial (int) cast to keep compiler happier.
2757 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2763 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2764 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2765 your cc.h file defines this either 1 or 0. If non-defined,
2767 * .c: Added <string.h> and <errno.h> includes where used.
2768 * etharp.c: Made some array indices unsigned.
2770 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2771 * netif.*: Added netif_set_up()/down().
2772 * dhcp.c: Changes to restart program flow.
2774 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2775 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2776 single-pass lookup for different candidates. Should exploit locality.
2778 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2779 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2780 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2781 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2782 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2786 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2787 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2788 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2789 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2790 is to prefix the 14-bit Ethernet headers with two padding bytes.
2792 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2793 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2794 * etharp.c: Fixed the case where the packet that initiates the ARP request
2795 is not queued, and gets lost. Fixed the case where the packets destination
2796 address is already known; we now always queue the packet and perform an ARP
2803 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2804 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2805 * Fixed two possible NULL references in rare cases.
2811 * Fixed DHCP which did not include the IP address in DECLINE messages.
2815 * etharp.c has been hauled over a bit.
2821 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2822 * Packets sent from ARP queue had invalid source hardware address.
2826 * Pass-by ARP requests do now update the cache.
2830 * No longer dependent on ctype.h.
2831 * New socket options.
2832 * Raw IP pcb support.
2838 * Some debug formatters and casts fixed.
2839 * Numereous fixes in PPP.
2843 * DEBUGF now is LWIP_DEBUGF
2844 * pbuf_dechain() has been re-enabled.
2845 * Mentioned the changed use of CVS branches in README.
2851 * Fixed pool pbuf memory leak in pbuf_alloc().
2852 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2853 Reported by Savin Zlobec.
2855 * PBUF_POOL chains had their tot_len field not set for non-first
2856 pbufs. Fixed in pbuf_alloc().
2860 * Added PPP stack contributed by Marc Boucher
2864 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2866 * ARP queueuing now queues the latest packet instead of the first.
2867 This is the RFC recommended behaviour, but can be overridden in
2874 * TCP has been fixed to deal with the new use of the pbuf->ref
2877 * DHCP dhcp_inform() crash bug fixed.
2881 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2882 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2883 Implemented by David Haas.
2889 * The packet buffer implementation has been enhanced to support
2890 zero-copy and copy-on-demand for packet buffers which have their
2891 payloads in application-managed memory.
2892 Implemented by David Haas.
2894 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2895 if an outgoing packet can be directly sent on the link, or perform
2896 a copy-on-demand when necessary.
2898 The application can safely assume the packet is sent, and the RAM
2899 is available to the application directly after calling udp_send()
2900 or similar function.
2904 * ARP_QUEUEING should now correctly work for all cases, including
2906 Implemented by Leon Woestenberg.
2910 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2911 to a '0.0.0.0' IP address.
2913 * The packet buffer implementation is changed. The pbuf->ref counter
2914 meaning has changed, and several pbuf functions have been
2915 adapted accordingly.
2917 * netif drivers have to be changed to set the hardware address length field
2918 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2919 See the contrib/ports/c16x cs8900 driver as a driver example.
2921 * netif's have a dhcp field that must be initialized to NULL by the driver.
2922 See the contrib/ports/c16x cs8900 driver as a driver example.
2924 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2925 logged in CVS but have not been explained here.
2927 (0.5.3) Changes since version 0.5.2
2931 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2932 threads because it wasn't protected by semaphores.
2936 * struct ip_addr now packed.
2938 * The name of the time variable in arp.c has been changed to ctime
2939 to avoid conflicts with the time() function.
2941 (0.5.2) Changes since version 0.5.1
2945 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2949 * A bug in tcp_parseopt() could cause the stack to hang because of a
2950 malformed TCP option.
2952 * The address of new connections in the accept() function in the BSD
2953 socket library was not handled correctly.
2955 * pbuf_dechain() did not update the ->tot_len field of the tail.
2957 * Aborted TCP connections were not handled correctly in all
2962 * All protocol header structs are now packed.
2964 * The ->len field in the tcp_seg structure now counts the actual
2965 amount of data, and does not add one for SYN and FIN segments.
2967 (0.5.1) Changes since version 0.5.0
2971 * Possible to run as a user process under Linux.
2973 * Preliminary support for cross platform packed structs.
2975 * ARP timer now implemented.
2979 * TCP output queue length was badly initialized when opening
2982 * TCP delayed ACKs were not sent correctly.
2984 * Explicit initialization of BSS segment variables.
2986 * read() in BSD socket library could drop data.
2988 * Problems with memory alignment.
2990 * Situations when all TCP buffers were used could lead to
2993 * TCP MSS option wasn't parsed correctly.
2995 * Problems with UDP checksum calculation.
2997 * IP multicast address tests had endianess problems.
2999 * ARP requests had wrong destination hardware address.
3003 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3005 * A ->linkoutput() member was added to struct netif.
3007 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3009 * ntoh* macros are now null definitions for big endian CPUs.
3011 (0.5.0) Changes since version 0.4.2
3015 * Redesigned operating system emulation layer to make porting easier.
3017 * Better control over TCP output buffers.
3019 * Documenation added.
3023 * Locking issues in buffer management.
3025 * Bugfixes in the sequential API.
3027 * IP forwarding could cause memory leakage. This has been fixed.
3031 * Directory structure somewhat changed; the core/ tree has been
3034 (0.4.2) Changes since version 0.4.1
3038 * Experimental ARP implementation added.
3040 * Skeleton Ethernet driver added.
3042 * Experimental BSD socket API library added.
3046 * In very intense situations, memory leakage could occur. This has
3051 * Variables named "data" and "code" have been renamed in order to
3052 avoid name conflicts in certain compilers.
3054 * Variable++ have in appliciable cases been translated to ++variable
3055 since some compilers generate better code in the latter case.
3057 (0.4.1) Changes since version 0.4
3061 * TCP: Connection attempts time out earlier than data
3062 transmissions. Nagle algorithm implemented. Push flag set on the
3063 last segment in a burst.
3065 * UDP: experimental support for UDP-Lite extensions.
3069 * TCP: out of order segments were in some cases handled incorrectly,
3070 and this has now been fixed. Delayed acknowledgements was broken
3071 in 0.4, has now been fixed. Binding to an address that is in use
3072 now results in an error. Reset connections sometimes hung an
3073 application; this has been fixed.
3075 * Checksum calculation sometimes failed for chained pbufs with odd
3076 lengths. This has been fixed.
3078 * API: a lot of bug fixes in the API. The UDP API has been improved
3079 and tested. Error reporting and handling has been
3080 improved. Logical flaws and race conditions for incoming TCP
3081 connections has been found and removed.
3083 * Memory manager: alignment issues. Reallocating memory sometimes
3084 failed, this has been fixed.
3086 * Generic library: bcopy was flawed and has been fixed.
3090 * API: all datatypes has been changed from generic ones such as
3091 ints, to specified ones such as u16_t. Functions that return
3092 errors now have the correct type (err_t).
3094 * General: A lot of code cleaned up and debugging code removed. Many
3095 portability issues have been fixed.
3097 * The license was changed; the advertising clause was removed.
3101 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3102 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3105 (0.4) Changes since version 0.3.1
3107 * Memory management has been radically changed; instead of
3108 allocating memory from a shared heap, memory for objects that are
3109 rapidly allocated and deallocated is now kept in pools. Allocation
3110 and deallocation from those memory pools is very fast. The shared
3111 heap is still present but is used less frequently.
3113 * The memory, memory pool, and packet buffer subsystems now support
3114 4-, 2-, or 1-byte alignment.
3116 * "Out of memory" situations are handled in a more robust way.
3118 * Stack usage has been reduced.
3120 * Easier configuration of lwIP parameters such as memory usage,
3121 TTLs, statistics gathering, etc. All configuration parameters are
3122 now kept in a single header file "lwipopts.h".
3124 * The directory structure has been changed slightly so that all
3125 architecture specific files are kept under the src/arch
3128 * Error propagation has been improved, both in the protocol modules
3131 * The code for the RTXC architecture has been implemented, tested
3134 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3135 the Internet checksum modules.
3137 * Bugs related to porting between a 32-bit and a 16-bit architecture
3138 have been found and corrected.
3140 * The license has been changed slightly to conform more with the
3141 original BSD license, including the advertisement clause.
3143 (0.3.1) Changes since version 0.3
3145 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3146 RAM never returned the RAM when the pbuf was deallocated.
3148 * TCP congestion control, window updates and retransmissions did not
3149 work correctly. This has now been fixed.
3151 * Bugfixes in the API.
3153 (0.3) Changes since version 0.2
3155 * New and improved directory structure. All include files are now
3156 kept in a dedicated include/ directory.
3158 * The API now has proper error handling. A new function,
3159 netconn_err(), now returns an error code for the connection in
3162 * Improvements in the memory management subsystem. The system now
3163 keeps a pointer to the lowest free memory block. A new function,
3164 mem_malloc2() tries to allocate memory once, and if it fails tries
3165 to free some memory and retry the allocation.
3167 * Much testing has been done with limited memory
3168 configurations. lwIP now does a better job when overloaded.
3170 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3172 * Many bugfixes in the TCP code:
3174 - Fixed a bug in tcp_close().
3176 - The TCP receive window was incorrectly closed when out of
3177 sequence segments was received. This has been fixed.
3179 - Connections are now timed-out of the FIN-WAIT-2 state.
3181 - The initial congestion window could in some cases be too
3182 large. This has been fixed.
3184 - The retransmission queue could in some cases be screwed up. This
3187 - TCP RST flag now handled correctly.
3189 - Out of sequence data was in some cases never delivered to the
3190 application. This has been fixed.
3192 - Retransmitted segments now contain the correct acknowledgment
3193 number and advertised window.
3195 - TCP retransmission timeout backoffs are not correctly computed
3196 (ala BSD). After a number of retransmissions, TCP now gives up
3199 * TCP connections now are kept on three lists, one for active
3200 connections, one for listening connections, and one for
3201 connections that are in TIME-WAIT. This greatly speeds up the fast
3202 timeout processing for sending delayed ACKs.
3204 * TCP now provides proper feedback to the application when a
3205 connection has been successfully set up.
3207 * More comments have been added to the code. The code has also been
3208 somewhat cleaned up.
3210 (0.2) Initial public release.