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 2011-09-27: Simon Goldschmidt
73 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
75 2011-09-27: Simon Goldschmidt
76 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
78 2011-09-27: Simon Goldschmidt
79 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
81 2011-09-24: Simon Goldschmidt
82 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
84 2011-09-23: Simon Goldschmidt
85 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
86 the last packet including FIN can lose data
88 2011-09-22: Simon Goldschmidt
89 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
92 2011-09-21: Simon Goldschmidt
93 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
96 2011-09-20: Simon Goldschmidt
97 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
99 2011-09-11: Simon Goldschmidt
100 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
103 2011-09-09: Simon Goldschmidt
104 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
107 2011-09-03: Simon Goldschmidt
108 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
109 is aggregated and sent to application
111 2011-09-01: Simon Goldschmidt
112 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
115 2011-09-01: Simon Goldschmidt
116 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
118 2011-08-24: Simon Goldschmidt
119 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
121 2011-08-24: Simon Goldschmidt
122 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
123 accept() on UDP connections
125 2011-08-24: Simon Goldschmidt
126 * sockets.h: fixed bug #34057 socklen_t should be a typedef
128 2011-08-24: Simon Goldschmidt
129 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
131 2011-08-24: Simon Goldschmidt
132 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
134 2011-08-24: Simon Goldschmidt
135 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
137 2011-08-22: Simon Goldschmidt
138 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
139 merely prevents nagle from not transmitting fast after closing.)
141 2011-07-22: Simon Goldschmidt
142 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
143 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
144 lwip_send() sends as much as possible for non-blocking sockets
146 2011-07-22: Simon Goldschmidt
147 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
148 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
149 at regular intervals from main level.
151 2011-07-21: Simon Goldschmidt
152 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
153 sending an ARP request when an ARP entry is used in the last minute before
156 2011-07-04: Simon Goldschmidt
157 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
159 2011-06-26: Simon Goldschmidt
160 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
161 updating its documentation only.
163 2011-06-26: Simon Goldschmidt
164 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
167 2011-06-26: Simon Goldschmidt
168 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
176 2011-03-27: Simon Goldschmidt
177 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
178 calculate it in tcp_zero_window_probe (the only place where it was used).
180 2010-11-21: Simon Goldschmidt
181 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
184 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
185 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
186 IP_MULTICAST_LOOP at socket- and raw-API level.
188 2010-06-16: Simon Goldschmidt
189 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
190 link-layer-addressed UDP traffic to be received while a netif is down (just
191 like DHCP during configuration)
193 2010-05-22: Simon Goldschmidt
194 * many many files: bug #27352: removed packing from ip_addr_t, the packed
195 version is now only used in protocol headers. Added global storage for
196 current src/dest IP address while in input functions.
198 2010-05-16: Simon Goldschmidt
199 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
200 calculation (and use them throughout the stack where applicable)
202 2010-05-16: Simon Goldschmidt
203 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
204 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
206 2010-05-16: Simon Goldschmidt
207 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
208 MEMP pool instead of the heap
210 2010-05-13: Simon Goldschmidt
211 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
212 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
213 packets to more than one pcb.
215 2010-05-02: Simon Goldschmidt
216 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
217 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
219 2010-04-30: Simon Goldschmidt
220 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
221 take a precalculated checksum, added pbuf_fill_chksum() to copy data
222 into a pbuf and at the same time calculating the checksum for that data
224 2010-04-29: Simon Goldschmidt
225 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
226 2-byte-aligned IP addresses and MAC addresses
228 2010-04-28: Patch by Bill Auerbach
229 * ip.c: Inline generating IP checksum to save a function call
231 2010-04-14: Simon Goldschmidt
232 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
233 tcpip_thread processes messages or timeouts to implement a watchdog.
235 2010-03-28: Simon Goldschmidt
236 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
237 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
239 2010-03-27: Simon Goldschmidt
240 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
241 etharp_query to prevent unnecessary function calls (inspired by
244 2010-03-20: Simon Goldschmidt
245 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
246 since the linker cannot do this automatically to save space.
248 2010-03-20: Simon Goldschmidt
249 * opt.h, etharp.c/.h: Added support for static ARP table entries
251 2010-03-14: Simon Goldschmidt
252 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
253 when creating TCP segments, not when (re-)transmitting them.
255 2010-03-07: Simon Goldschmidt
256 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
257 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
258 This should speed up receiving data on sockets as the select code in
259 event_callback is only executed when select is waiting.
261 2010-03-06: Simon Goldschmidt
262 * tcp_out.c: task #7013 (Create option to have all packets delivered to
263 netif->output in one piece): Always copy to try to create single pbufs
266 2010-03-06: Simon Goldschmidt
267 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
268 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
269 for tcp netconns to receive pbufs, not netbufs; use that function
272 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
273 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
274 Work on tcp_enqueue: Don't waste memory when chaining segments,
275 added option TCP_OVERSIZE to prevent creating many small pbufs when
276 calling tcp_write with many small blocks of data. Instead, pbufs are
277 allocated larger than needed and the space is used for later calls to
280 2010-02-21: Simon Goldschmidt
281 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
284 2010-02-21: Simon Goldschmidt
285 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
286 implementation of tcp to make API usage cleare to application programmers
288 2010-02-14: Simon Goldschmidt/Stephane Lesage
289 * ip_addr.h: Improved some defines working on ip addresses, added faster
290 macro to copy addresses that cannot be NULL
292 2010-02-13: Simon Goldschmidt
293 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
294 blocking send operation)
296 2010-02-12: Simon Goldschmidt
297 * sockets.c/.h: Added a minimal version of posix fctl() to have a
298 standardised way to set O_NONBLOCK for nonblocking sockets.
300 2010-02-12: Simon Goldschmidt
301 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
302 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
303 and dhcp work with user-allocated structs instead of callin mem_malloc
305 2010-02-12: Simon Goldschmidt/Jeff Barber
306 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
307 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
309 2010-02-12: Simon Goldschmidt
310 * sys layer: task #10139 (Prefer statically allocated memory): converted
311 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
312 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
313 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
314 to let sys.h use binary semaphores instead of mutexes - as before)
316 2010-02-09: Simon Goldschmidt (Simon Kallweit)
317 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
318 (Restart system timeout handling)
320 2010-02-09: Simon Goldschmidt
321 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
322 netif.c) - loopif does not have to be created by the port any more,
323 just define LWIP_HAVE_LOOPIF to 1.
325 2010-02-08: Simon Goldschmidt
326 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
327 inet_ntoa_r/ipaddr_ntoa_r
329 2010-02-08: Simon Goldschmidt
330 * netif.h: Added netif_s/get_igmp_mac_filter() macros
332 2010-02-05: Simon Goldschmidt
333 * netif.h: Added function-like macros to get/set the hostname on a netif
335 2010-02-04: Simon Goldschmidt
336 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
337 make changing the actual implementation behind the typedef easier.
339 2010-02-01: Simon Goldschmidt
340 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
341 for allocating memory when getaddrinfo() is called.
343 2010-01-31: Simon Goldschmidt
344 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
345 them once instead of parsing for every option. This also removes
346 the need for mem_malloc from dhcp_recv and makes it possible to
347 correctly retrieve the BOOTP file.
349 2010-01-30: simon Goldschmidt
350 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
353 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
354 * api.h, api_msg.c, sockets.c: Added except set support in select
357 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
358 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
359 Add non-blocking support for connect (partly from patch #6860),
360 plus many cleanups in socket & netconn API.
362 2010-01-27: Simon Goldschmidt
363 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
364 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
366 2010-01-26: Simon Goldschmidt
367 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
369 2010-01-14: Simon Goldschmidt
370 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
371 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
373 2010-01-13: Simon Goldschmidt
374 * mem.c: The heap now may be moved to user-defined memory by defining
375 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
376 (patch #6966 and bug #26133)
378 2010-01-10: Simon Goldschmidt (Bill Auerbach)
379 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
382 2010-01-10: Simon Goldschmidt
383 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
384 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
386 2009-12-31: Simon Goldschmidt
387 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
388 added timers.c/.h: Separated timer implementation from semaphore/mbox
389 implementation, moved timer implementation to timers.c/.h, timers are
390 now only called from tcpip_thread or by explicitly checking them.
393 2009-12-27: Simon Goldschmidt
394 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
395 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
400 2011-04-20: Simon Goldschmidt
401 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
403 2011-04-13: Simon Goldschmidt
404 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
405 using ports in the IANA private/dynamic range (49152 through 65535).
407 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
408 * etharp.h/.c: Fixed broken VLAN support.
410 2011-03-27: Simon Goldschmidt
411 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
412 pcbs) by checking if the pcb was bound (local_port != 0).
414 2011-03-27: Simon Goldschmidt
415 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
417 2011-03-27: Simon Goldschmidt
418 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
419 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
421 2011-03-27: Simon Goldschmidt
422 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
423 is present never times out) by starting retransmission timer before checking
426 2011-03-22: Simon Goldschmidt
427 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
428 calling sio_read_abort() if the file descriptor is valid.
430 2011-03-14: Simon Goldschmidt
431 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
432 more than once can render a socket useless) since it mainly involves changing
433 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
435 2011-03-13: Simon Goldschmidt
436 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
437 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
438 use EALRADY instead of -1
440 2011-03-13: Simon Goldschmidt
441 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
442 connection has been aborted by err_tcp (since this is not a normal closing
445 2011-03-13: Simon Goldschmidt
446 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
447 with pcb->state != CLOSED
449 2011-02-17: Simon Goldschmidt
450 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
453 2011-02-17: Simon Goldschmidt
454 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
456 2011-01-24: Simon Goldschmidt
457 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
459 2010-12-02: Simon Goldschmidt
460 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
462 2010-11-23: Simon Goldschmidt
463 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
464 LWIP_SO_RCVBUF and ioctl/FIONREAD.
466 2010-11-23: Simon Goldschmidt
467 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
468 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
470 2010-11-23: Simon Goldschmidt
471 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
472 refusing 'refused_data' again.
474 2010-11-22: Simon Goldschmidt
475 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
476 after a successful nonblocking connection.
478 2010-11-22: Simon Goldschmidt
479 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
480 must be sent link-local
482 2010-11-22: Simon Goldschmidt
483 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
486 2010-11-20: Simon Goldschmidt
487 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
489 2010-11-20: Simon Goldschmidt
490 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
491 resemble other stacks.
493 2010-11-20: Simon Goldschmidt
494 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
495 no-copy TCP writes will never succeed.
497 2010-11-20: Simon Goldschmidt
498 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
499 not match documentation: return ERR_ARG instead of ERR_VAL if not
500 initialized or wrong argument.
502 2010-10-20: Simon Goldschmidt
503 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
505 2010-10-05: Simon Goldschmidt
506 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
507 replugging the network cable after an AutoIP address was assigned.
509 2010-08-10: Simon Goldschmidt
510 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
512 2010-08-03: Simon Goldschmidt
513 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
515 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
516 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
517 endian architectures)
519 2010-07-28: Simon Goldschmidt
520 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
523 2010-07-27: Simon Goldschmidt
524 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
525 harm but never did anything
527 2010-07-21: Simon Goldschmidt
528 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
531 2010-07-16: Kieran Mansley
532 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
534 2010-07-10: Simon Goldschmidt
535 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
537 2010-06-30: Simon Goldschmidt
538 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
541 2010-06-28: Kieran Mansley
542 * timers.c remove unportable printing of C function pointers
544 2010-06-24: Simon Goldschmidt
545 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
546 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
548 2010-06-24: Simon Goldschmidt
549 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
550 implemented shutdown at socket level.
552 2010-06-21: Simon Goldschmidt
553 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
554 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
555 custom pbufs that reference other (original) pbufs. Additionally set
556 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
558 2010-06-15: Simon Goldschmidt
559 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
561 2010-06-14: Simon Goldschmidt
562 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
564 2010-06-12: Simon Goldschmidt
565 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
568 2010-05-17: Simon Goldschmidt
569 * netdb.c: Correctly NULL-terminate h_addr_list
571 2010-05-16: Simon Goldschmidt
572 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
573 "symbol already defined" i.e. when linking to winsock
575 2010-05-05: Simon Goldschmidt
576 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
579 2010-04-21: Simon Goldschmidt
580 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
583 2010-03-28: Luca Ceresoli
584 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
586 2010-03-27: Luca Ceresoli
587 * mib2.c: patch #7130: remove meaningless const qualifiers
589 2010-03-26: Simon Goldschmidt
590 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
592 2010-03-26: Simon Goldschmidt
593 * various files: Fixed compiling with different options disabled (TCP/UDP),
594 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
596 2010-03-25: Simon Goldschmidt
597 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
599 2010-03-25: Simon Goldschmidt
600 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
601 overrunning our rcv_wnd in ooseq case.
603 2010-03-22: Simon Goldschmidt
604 * tcp.c: tcp_listen() did not copy the pcb's prio.
606 2010-03-19: Simon Goldschmidt
607 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
609 2010-03-14: Simon Goldschmidt
610 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
611 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
612 and basing PBUF_LINK_HLEN on it.
614 2010-03-08: Simon Goldschmidt
615 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
616 when assiging routable address): when checking incoming packets and
617 aborting existing connection on address change, filter out link-local
620 2010-03-06: Simon Goldschmidt
621 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
623 2010-03-06: Simon Goldschmidt
624 * ipv4/ip.c: Don't try to forward link-local addresses
626 2010-03-06: Simon Goldschmidt
627 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
630 2010-03-05: Simon Goldschmidt
631 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
634 2010-03-05: Simon Goldschmidt
635 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
636 into multiple calls to tcp_write.
638 2010-02-21: Simon Goldschmidt
639 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
640 the implementation of DNS_USES_STATIC_BUF==1)
642 2010-02-20: Simon Goldschmidt
643 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
644 close() vs. shutdown(). Now the application does not get any more
645 recv callbacks after calling tcp_close(). Added tcp_shutdown().
647 2010-02-19: Simon Goldschmidt
648 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
649 confusion with realloc()
651 2010-02-15: Simon Goldschmidt/Stephane Lesage
652 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
655 2010-02-14: Simon Goldschmidt
656 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
657 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
658 admin-status of a netif are up
660 2010-02-14: Simon Goldschmidt
661 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
662 reception and is not really necessary
664 2010-02-14: Simon Goldschmidt
665 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
666 request was directed as us (RFC 826, Packet Reception), otherwise
667 only update existing entries; internalized some functions
669 2010-02-14: Simon Goldschmidt
670 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
671 disabled on netif used for PPPoE) by adding a new netif flag
672 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
673 device but prevents usage of ARP (so that ethernet_input can be used
676 2010-02-12: Simon Goldschmidt
677 * netif.c: netif_set_link_up/down: only do something if the link state
680 2010-02-12: Simon Goldschmidt/Stephane Lesage
681 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
684 2010-02-12: Simon Goldschmidt
685 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
687 2010-02-09: Simon Goldschmidt
688 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
689 (recv() makes receive window update for data that wasn't received by
692 2010-02-09: Simon Goldschmidt/Stephane Lesage
693 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
694 or any netconn_recv() error)
696 2010-02-09: Simon Goldschmidt
697 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
699 2010-02-09: Simon Goldschmidt
700 * netif.c: For loopback packets, adjust the stats- and snmp-counters
701 for the loopback netif.
703 2010-02-08: Simon Goldschmidt
704 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
705 since they are not used anywhere else.
707 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
708 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
709 (patch from bug #28798)
711 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
712 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
713 another bug when LWIP_RAND() returns zero.
715 2010-02-04: Simon Goldschmidt
716 * nearly every file: Use macros defined in ip_addr.h (some of them new)
717 to work with IP addresses (preparation for bug #27352 - Change ip_addr
718 from struct to typedef (u32_t) - and better code).
720 2010-01-31: Simon Goldschmidt
721 * netif.c: Don't call the link-callback from netif_set_up/down() since
722 this invalidly retriggers DHCP.
724 2010-01-29: Simon Goldschmidt
725 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
726 portability file inet.h and its contents from the stack: moved htonX-
727 functions to def.h (and the new def.c - they are not ipv4 dependent),
728 let inet.h depend on ip_addr.h and not the other way round.
729 This fixes bug #28732.
731 2010-01-28: Kieran Mansley
732 * tcp.c: Ensure ssthresh >= 2*MSS
734 2010-01-27: Simon Goldschmidt
735 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
736 callback can lead to accessing unallocated memory. As a consequence,
737 ERR_ABRT means the application has called tcp_abort()!
739 2010-01-25: Simon Goldschmidt
740 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
741 not implemented in SNMP): write-only or not-accessible are still
742 returned by getnext (though not by get)
744 2010-01-24: Simon Goldschmidt
745 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
746 not use reserved C/C++ keywords
748 2010-01-23: Simon Goldschmidt
749 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
752 2010-01-21: Simon Goldschmidt
753 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
754 if tcp_enqueue fails) both in raw- and netconn-API
756 2010-01-19: Simon Goldschmidt
757 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
759 2010-01-18: Iordan Neshev/Simon Goldschmidt
760 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
761 bugfix backports from 2.4.x.
763 2010-01-18: Simon Goldschmidt
764 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
766 2010-01-17: Simon Goldschmidt
767 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
768 task #10102: "netconn: clean up conn->err threading issues" by adding
769 error return value to struct api_msg_msg
771 2010-01-17: Simon Goldschmidt
772 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
773 to return err_t (bugs #27709 and #28087)
775 2010-01-14: Simon Goldschmidt
776 * ...: Use typedef for function prototypes throughout the stack.
778 2010-01-13: Simon Goldschmidt
779 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
780 window = 0) by correctly draining recvmbox/acceptmbox
782 2010-01-11: Simon Goldschmidt
783 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
784 erroneous callbacks) by copying the code from recent pppd
786 2010-01-10: Simon Goldschmidt
787 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
789 2010-01-10: Simon Goldschmidt
790 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
792 2010-01-08: Simon Goldschmidt
793 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
795 2010-01-08: Simon Goldschmidt
796 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
797 passed to dns_local_addhost() might be volatile
799 2010-01-07: Simon Goldschmidt
800 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
802 2010-01-06: Simon Goldschmidt
803 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
805 2009-12-31: Simon Goldschmidt
806 * many ppp files: Reorganised PPP source code from ucip structure to pppd
807 structure to easily compare our code against the pppd code (around v2.3.1)
809 2009-12-27: Simon Goldschmidt
810 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
818 2009-10-27 Simon Goldschmidt/Stephan Lesage
819 * netifapi.c/.h: Added netifapi_netif_set_addr()
821 2009-10-07 Simon Goldschmidt/Fabian Koch
822 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
823 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
825 2009-08-26 Simon Goldschmidt/Simon Kallweit
826 * slipif.c/.h: bug #26397: SLIP polling support
828 2009-08-25 Simon Goldschmidt
829 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
830 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
832 2009-08-25 Simon Goldschmidt
833 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
835 2009-08-24 Jakob Stoklund Olesen
836 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
837 to netif_set_link_up().
839 2009-08-23 Simon Goldschmidt
840 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
841 to a human-readable string.
845 2009-12-24: Kieran Mansley
846 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
849 2009-12-06: Simon Goldschmidt
850 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
851 be statically allocated (like in ucip)
853 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
854 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
856 2009-12-03: Simon Goldschmidt
857 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
858 could have non-zero length
860 2009-12-02: Simon Goldschmidt
861 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
862 tcp_input_pcb until after calling the pcb's callbacks
864 2009-11-29: Simon Goldschmidt
865 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
866 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
868 2009-11-29: Simon Goldschmidt
869 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
870 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
872 2009-11-26: Simon Goldschmidt
873 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
876 2009-11-26: Simon Goldschmidt
877 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
878 algorithm at PCB level
880 2009-11-22: Simon Goldschmidt
881 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
883 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
884 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
885 reusing time-wait pcb
887 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
888 * sockets.c: Fixed bug #28062: Data received directly after accepting
889 does not wake up select
891 2009-11-11: Simon Goldschmidt
892 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
894 2009-10-30: Simon Goldschmidt
895 * opt.h: Increased default value for TCP_MSS to 536, updated default
896 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
898 2009-10-28: Kieran Mansley
899 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
900 to follow algorithm from TCP/IP Illustrated
902 2009-10-27: Kieran Mansley
903 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
905 2009-10-25: Simon Goldschmidt
906 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
907 pcb->recv is NULL to keep rcv_wnd correct)
909 2009-10-25: Simon Goldschmidt
910 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
912 2009-10-23: Simon Goldschmidt (David Empson)
913 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
915 2009-10-21: Simon Goldschmidt
916 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
917 trailing 1 byte len (SYN/FIN)
919 2009-10-21: Simon Goldschmidt
920 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
922 2009-10-19: Simon Goldschmidt
923 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
924 conditional code to assert where applicable), check pbuf length before
925 testing for valid reply
927 2009-10-19: Simon Goldschmidt
928 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
929 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
931 2009-10-16: Simon Goldschmidt
932 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
933 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
936 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
937 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
939 2009-10-15: Simon Goldschmidt
940 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
943 2009-10-15: Simon Goldschmidt
944 * autoip.c: Fixed bug #27704: autoip starts with wrong address
945 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
946 of network byte order
948 2009-10-11 Simon Goldschmidt (Jörg Kesten)
949 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
950 which are not consecutive when retransmitting unacked segments
952 2009-10-09 Simon Goldschmidt
953 * opt.h: Fixed default values of some stats to only be enabled if used
954 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
956 2009-08-30 Simon Goldschmidt
957 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
958 function" by checking for loopback before calling ip_frag
960 2009-08-25 Simon Goldschmidt
961 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
963 2009-08-23 Simon Goldschmidt
964 * ppp.c: bug #27078: Possible memory leak in pppInit()
966 2009-08-23 Simon Goldschmidt
967 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
970 2009-08-23 Simon Goldschmidt
971 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
972 Fixed wrong parenthesis, added check in init.c
974 2009-08-23 Simon Goldschmidt
975 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
977 2009-08-23 Simon Goldschmidt
978 * many ppp files: bug #27267: Added include to string.h where needed
980 2009-08-23 Simon Goldschmidt
981 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
988 2009-05-10 Simon Goldschmidt
989 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
990 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
991 one pbuf to help MACs that don't support scatter-gather DMA.
993 2009-05-09 Simon Goldschmidt
994 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
995 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
997 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
998 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
999 extended info about the currently received packet.
1001 2009-04-27 Simon Goldschmidt
1002 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1004 2009-04-25 Simon Goldschmidt
1005 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1006 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1008 2009-04-21 Simon Goldschmidt
1009 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1010 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1011 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1012 as an external function for lookup.
1014 2009-04-15 Simon Goldschmidt
1015 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1017 2009-03-31 Kieran Mansley
1018 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1019 TCP timestamp options, off by default. Rework tcp_enqueue() to
1020 take option flags rather than specified option data
1022 2009-02-18 Simon Goldschmidt
1023 * cc.h: Added printf formatter for size_t: SZT_F
1025 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1026 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1029 2009-02-12 Simon Goldschmidt
1030 * init.h: Added LWIP_VERSION to get the current version of the stack
1032 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1033 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1034 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1037 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1038 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1039 is only used by UDPLITE at present, so conditionalise it.
1041 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1042 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1043 "seed" address. This should reduce AUTOIP conflicts if
1044 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1046 2008-10-02 Jonathan Larmour and Rishi Khan
1047 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1050 2008-06-30 Simon Goldschmidt
1051 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1052 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1053 mem_free to run between mem_malloc iterations. Added illegal counter for
1056 2008-06-27 Simon Goldschmidt
1057 * stats.h/.c, some other files: patch #6483: stats module improvement:
1058 Added defines to display each module's statistic individually, added stats
1059 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1061 2008-06-17 Simon Goldschmidt
1062 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1063 (define LWIP_ERR_T in cc.h)
1065 2008-06-17 Simon Goldschmidt
1066 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1069 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1070 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1071 modified version of patch # 6370: Moved loopif code to netif.c so that
1072 loopback traffic is supported on all netifs (all local IPs).
1073 Added option to limit loopback packets for each netifs.
1077 2009-08-12 Kieran Mansley
1078 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1079 out of window or out of order properly
1081 2009-08-12 Kieran Mansley
1082 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1084 2009-07-28 Simon Goldschmidt
1085 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1087 2009-07-27 Kieran Mansley
1088 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1090 2009-07-09 Kieran Mansley
1091 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1092 recv_avail and don't increment counters until message successfully
1095 2009-06-25 Kieran Mansley
1096 * api_msg.c api.h: BUG26722: initialise netconn write variables
1099 2009-06-25 Kieran Mansley
1100 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1102 2009-06-25 Kieran Mansley
1103 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1104 simultaneous close behaviour, and make snd_nxt have the same meaning
1107 2009-05-12 Simon Goldschmidt
1108 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1109 arp_table / uses etharp_query" by adding etharp_gratuitous()
1111 2009-05-12 Simon Goldschmidt
1112 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1113 to the IP header (used by igmp_ip_output_if)
1115 2009-05-06 Simon Goldschmidt
1116 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1117 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1119 2009-05-05 Simon Goldschmidt
1120 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1123 2009-05-04 Simon Goldschmidt
1124 * init.c: snmp was not initialized in lwip_init()
1126 2009-05-04 Frédéric Bernon
1127 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1129 2009-05-03 Simon Goldschmidt
1130 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1131 (and unsent->next == NULL)
1133 2009-05-02 Simon Goldschmidt
1134 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1135 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1137 2009-05-02 Simon Goldschmidt
1138 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1140 2009-05-01 Simon Goldschmidt
1141 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1143 2009-05-01 Simon Goldschmidt
1144 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1146 2009-04-29 Frédéric Bernon
1147 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1148 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1149 of broadcast packets even when this option wasn't set. Port maintainers
1150 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1151 If you want this option also filter broadcast on recv operations, you also
1152 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1154 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1155 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1156 DHCP/AUTOIP cooperation
1158 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1159 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1160 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1161 right place in tcp_output and tcp_rexmit).
1163 2009-04-25 Simon Goldschmidt
1164 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1165 when debugging": memp_sizes contained the wrong sizes (including sanity
1166 regions); memp pools for MEM_USE_POOLS were too small
1168 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1169 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1170 behavior, with with ip address string not ended by a '\0', a space or a
1173 2009-04-19 Simon Goldschmidt
1174 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1175 pcb->err is called, not pcb->connected (with an error code).
1177 2009-04-19 Simon Goldschmidt
1178 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1179 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1181 2009-04-19 Simon Goldschmidt
1182 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1183 in the header pbuf, not the data pbuf)
1185 2009-04-18 Simon Goldschmidt
1186 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1188 2009-04-15 Simon Goldschmidt
1189 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1191 2009-04-15 Simon Goldschmidt
1192 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1194 2009-04-15 Simon Goldschmidt
1195 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1196 ip_hinted_output() (for smaller code mainly)
1198 2009-04-15 Simon Goldschmidt
1199 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1201 2009-04-15 Simon Goldschmidt
1202 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1203 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1204 is big enough in dhcp_start
1206 2009-04-15 Simon Goldschmidt
1207 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1209 2009-04-15 Simon Goldschmidt
1210 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1212 2009-04-15 Simon Goldschmidt
1213 * sockets.c: bug #26121: set_errno can be overridden
1215 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1216 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1219 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1220 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1223 2009-03-31 Kieran Mansley
1224 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1225 updates are calculated and sent (BUG20515)
1227 * tcp_in.c: cope with SYN packets received during established states,
1228 and retransmission of initial SYN.
1230 * tcp_out.c: set push bit correctly when tcp segments are merged
1232 2009-03-27 Kieran Mansley
1233 * tcp_out.c set window correctly on probes (correcting change made
1236 2009-03-26 Kieran Mansley
1237 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1238 connections where no reset required (bug #25622)
1240 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1243 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1244 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1245 too small depending on MEM_ALIGNMENT
1247 2009-02-16 Simon Goldschmidt
1248 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1249 converted size argument of netconn_write to 'size_t'
1251 2009-02-16 Simon Goldschmidt
1252 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1253 by moving accept callback function pointer to TCP_PCB_COMMON
1255 2009-02-12 Simon Goldschmidt
1256 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1259 2009-02-11 Simon Goldschmidt
1260 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1262 2009-02-11 Simon Goldschmidt
1263 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1264 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1266 2009-02-10 Simon Goldschmidt
1267 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1268 Accepts_pending is decrease on a corresponding listen pcb when a connection
1269 in state SYN_RCVD is close.
1271 2009-01-28 Jonathan Larmour
1272 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1275 2008-12-19 Simon Goldschmidt
1276 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1278 2008-12-10 Tamas Somogyi, Frédéric Bernon
1279 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1280 port uses deleted netbuf.
1282 2008-10-18 Simon Goldschmidt
1283 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1286 2008-10-15 Simon Goldschmidt
1287 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1288 by packing the struct ip_reass_helper.
1290 2008-10-03 David Woodhouse, Jonathan Larmour
1291 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1293 2008-10-02 Jonathan Larmour
1294 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1295 padding is included.
1297 2008-09-30 Jonathan Larmour
1298 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1299 assertion check that addrlen isn't NULL.
1301 2008-09-30 Jonathan Larmour
1302 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1304 2008-08-26 Simon Goldschmidt
1305 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1306 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1308 2008-08-14 Simon Goldschmidt
1309 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1310 tcp_close returns != ERR_OK)
1312 2008-07-08 Frédéric Bernon
1313 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1314 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1316 2008-06-24 Jonathan Larmour
1317 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1318 if tcp_seg_copy fails.
1320 2008-06-17 Simon Goldschmidt
1321 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1322 and created defines for swapping bytes and folding u32 to u16.
1324 2008-05-30 Kieran Mansley
1325 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1326 rather than rcv_ann_wnd when deciding if packets are in-window.
1327 Contributed by <arasmussen@consultant.datasys.swri.edu>
1329 2008-05-30 Kieran Mansley
1330 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1331 passing as function pointers when MEM_LIBC_MALLOC is defined.
1333 2008-05-09 Jonathan Larmour
1334 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1335 stop it being treated as a fatal error.
1337 2008-04-15 Simon Goldschmidt
1338 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1341 2008-03-27 Simon Goldschmidt
1342 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1343 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1344 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1345 or heap memory from interrupt context
1347 2008-03-26 Simon Goldschmidt
1348 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1349 host sent a zero mss as TCP option.
1356 2008-03-10 Jonathan Larmour
1357 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1358 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1360 2008-01-22 Frédéric Bernon
1361 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1362 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1364 2008-01-14 Frédéric Bernon
1365 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1366 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1367 tcp_recv callback (see rawapi.txt).
1369 2008-01-14 Frédéric Bernon, Marc Chaland
1370 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1372 2008-01-12 Frédéric Bernon
1373 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1374 netconn::sem per netconn::op_completed like suggested for the task #7490
1375 "Add return value to sys_mbox_post".
1377 2008-01-12 Frédéric Bernon
1378 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1379 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1380 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1382 2008-01-10 Frédéric Bernon
1383 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1384 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1385 "blocking" ("block" parameter = 1).
1387 2008-01-10 Frédéric Bernon
1388 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1389 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1390 "Add return value to sys_mbox_post".
1392 2008-01-05 Frédéric Bernon
1393 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1394 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1395 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1396 indicate the number of pointers query by the mailbox. There is three defines
1397 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1398 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1399 parameter in your implementation, but to ignore it to keep the previous behavior.
1400 The new sys_mbox_trypost function return a value to know if the mailbox is
1401 full or if the message is posted. Take a look to sys_arch.txt for more details.
1402 This new function is used in tcpip_input (so, can be called in an interrupt
1403 context since the function is not blocking), and in recv_udp and recv_raw.
1405 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1406 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1407 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1408 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1409 documentation in the rawapi.txt file.
1411 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1412 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1414 2007-12-31 Frédéric Bernon, Luca Ceresoli
1415 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1416 in autoip". The change in etharp_raw could be removed, since all calls to
1417 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1418 wrong in the future.
1420 2007-12-30 Frédéric Bernon, Tom Evans
1421 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1422 Filtering" reported by Tom Evans.
1424 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1425 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1426 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1427 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1428 keep accepting new connections.
1430 2007-12-13 Frédéric Bernon
1431 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1432 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1434 2007-12-12 Frédéric Bernon
1435 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1436 are the one which have ram usage.
1438 2007-12-05 Frédéric Bernon
1439 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1440 set of variables (=0) or a local one (=1). In this last case, your port should
1441 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1442 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1444 2007-12-03 Simon Goldschmidt
1445 * ip.c: ip_input: check if a packet is for inp first before checking all other
1446 netifs on netif_list (speeds up packet receiving in most cases)
1448 2007-11-30 Simon Goldschmidt
1449 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1450 UDP: move a (connected) pcb selected for input to the front of the list of
1451 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1454 2007-11-28 Simon Goldschmidt
1455 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1457 2007-11-25 Simon Goldschmidt
1458 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1461 2007-11-24 Simon Goldschmidt
1462 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1463 to the new file netdb.c; included lwip_getaddrinfo.
1465 2007-11-21 Simon Goldschmidt
1466 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1467 based on the MTU of the netif used to send. Enabled by default. Disable by
1468 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1470 2007-11-19 Frédéric Bernon
1471 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1472 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1473 copy dns payload to parse the response), return an error if there is no place
1474 for a new query, and fix some minor problems.
1476 2007-11-16 Simon Goldschmidt
1477 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1478 removed files: core/inet.c, core/inet6.c
1479 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1480 inet and chksum part; changed includes in all lwIP files as appropriate
1482 2007-11-16 Simon Goldschmidt
1483 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1484 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1485 (gethostbyname/gethostbyname_r).
1487 2007-11-15 Jim Pettinato, Frédéric Bernon
1488 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1489 requests with RAW api interface. Initialization is done in lwip_init() with
1490 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1491 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1492 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1493 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1494 list with points to improve.
1496 2007-11-06 Simon Goldschmidt
1497 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1498 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1499 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1501 2007-11-06 Simon Goldschmidt
1502 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1503 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1504 implementation from netconn api applications.
1506 2007-11-03 Frédéric Bernon
1507 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1508 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1509 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1510 it. This is a first release which have to be improve for TCP. Note it used the
1511 netconn::recv_avail which need to be more "thread-safe" (note there is already
1512 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1514 2007-11-01 Frédéric Bernon, Marc Chaland
1515 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1516 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1517 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1518 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1519 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1521 2007-10-24 Frédéric Bernon
1522 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1523 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1524 some code (like we have talk in "patch #5919 : Create compile switch to remove
1525 select code"), but it could be done later.
1527 2007-10-08 Simon Goldschmidt
1528 * many files: Changed initialization: many init functions are not needed any
1529 more since we now rely on the compiler initializing global and static
1532 2007-10-06 Simon Goldschmidt
1533 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1534 to enqueue the received pbufs so that multiple packets can be reassembled
1535 simultaneously and no static reassembly buffer is needed.
1537 2007-10-05 Simon Goldschmidt
1538 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1539 all netifs (or ports) can use it.
1541 2007-10-05 Frédéric Bernon
1542 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1543 common function to reduce a little bit the footprint (for all functions using
1544 only the "netif" parameter).
1546 2007-10-03 Frédéric Bernon
1547 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1548 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1549 a little bit the footprint (for all functions using only the "netif" parameter).
1551 2007-09-15 Frédéric Bernon
1552 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1553 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1554 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1555 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1557 2007-09-10 Frédéric Bernon
1558 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1559 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1560 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1561 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1562 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1563 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1564 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1565 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1566 when it's queried (any direct call to "sysuptime" is changed by a call to
1567 snmp_get_sysuptime).
1569 2007-09-09 Frédéric Bernon, Bill Florac
1570 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1571 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1572 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1573 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1574 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1575 the next query message to receive the matching multicast streams).
1577 2007-09-08 Frédéric Bernon
1578 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1579 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1580 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1581 Enable to access to these fields with LWIP_TCP=0.
1583 2007-09-05 Frédéric Bernon
1584 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1585 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1586 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1587 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1588 help to reduce footprint, and to reduce "visibility" on the Internet.
1590 2007-09-05 Frédéric Bernon, Bill Florac
1591 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1592 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1593 parameters have to be provided: a task name, and a task stack size. For this
1594 one, since it's platform dependant, you could define the best one for you in
1595 your lwipopts.h. For port maintainers, you can just add these new parameters
1596 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1599 2007-09-05 Frédéric Bernon
1600 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1601 inside init.c for task #7142 "Sanity check user-configurable values".
1603 2007-09-04 Frédéric Bernon, Bill Florac
1604 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1605 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1606 value). It will avoid potential fragmentation problems, use a counter to know
1607 how many times a group is used on an netif, and free it when all applications
1608 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1609 check if LWIP_IGMP!=0).
1611 2007-09-03 Frédéric Bernon
1612 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1613 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1614 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1615 and/or the "interface" field (for netconn layer), for join/leave operations.
1616 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1617 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1619 2007-08-30 Frédéric Bernon
1620 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1621 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1622 with other API (application based on raw API, or future "socket2" API). Ports
1623 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1625 2007-08-30 Frédéric Bernon, Jonathan Larmour
1626 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1627 user-configurable values".
1629 2007-08-29 Frédéric Bernon
1630 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1631 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1632 spirit than the others modules. Modify some IGMP debug traces.
1634 2007-08-29 Frédéric Bernon
1635 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1636 Add lwip_init function to regroup all modules initializations, and to provide
1637 a place to add code for task #7142 "Sanity check user-configurable values".
1638 Ports maintainers should remove direct initializations calls from their code,
1639 and add init.c in their makefiles. Note that lwip_init() function is called
1640 inside tcpip_init, but can also be used by raw api users since all calls are
1641 disabled when matching options are disabled. Also note that their is new options
1642 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1644 2007-08-26 Marc Boucher
1645 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1646 since they can under certain circumstances be called with an invalid conn
1647 pointer after the connection has been closed (and conn has been freed).
1649 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1650 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1651 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1653 2007-08-22 Frédéric Bernon
1654 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1655 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1657 2007-08-22 Frédéric Bernon
1658 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1659 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1660 name is tcpip_input (we keep the name of 1.2.0 function).
1662 2007-08-17 Jared Grubb
1663 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1664 settings into new memp_std.h and optional user file lwippools.h. This adds
1665 more dynamic mempools, and allows the user to create an arbitrary number of
1666 mempools for mem_malloc.
1668 2007-08-16 Marc Boucher
1669 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1670 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1671 close the connection.
1673 2007-08-16 Marc Boucher
1674 * sockets.c: lwip_accept(): check netconn_peer() error return.
1676 2007-08-16 Marc Boucher
1677 * mem.c, mem.h: Added mem_calloc().
1679 2007-08-16 Marc Boucher
1680 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1681 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1682 and starving other message types.
1683 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1685 2007-08-16 Marc Boucher
1686 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1687 type and flgs (later renamed to flags).
1688 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1689 Improved lwip_recvfrom(). TCP push now propagated.
1691 2007-08-16 Marc Boucher
1692 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1695 2007-08-16 Marc Boucher
1696 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1697 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1698 Added PPPoE support and various PPP improvements.
1700 2007-07-25 Simon Goldschmidt
1701 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1702 making netbuf_copy_partial use this function.
1704 2007-07-25 Simon Goldschmidt
1705 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1706 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1709 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1710 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1711 a link callback in the netif struct, and functions to handle it. Be carefull
1712 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1713 if you want to be sure to be compatible with future changes...
1715 2007-06-30 Frédéric Bernon
1716 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1718 2007-06-21 Simon Goldschmidt
1719 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1720 LWIP_AUTOIP =0 and =1 to remove redundant code.
1722 2007-06-21 Simon Goldschmidt
1723 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1724 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1725 heap. This both prevents memory fragmentation and gives a higher speed
1726 at the cost of more memory consumption. Turned off by default.
1728 2007-06-21 Simon Goldschmidt
1729 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1730 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1731 int to be able to send a bigger buffer than 64K with one time (mainly
1732 used from lwip_send).
1734 2007-06-21 Simon Goldschmidt
1735 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1736 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1738 2007-06-21 Simon Goldschmidt
1739 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1740 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1741 changes on low memory or empty send-buffer.
1743 2007-06-18 Simon Goldschmidt
1744 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1745 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1746 used for ethernet and struct eth_addr already had a defined length of 6).
1748 2007-06-17 Simon Goldschmidt
1749 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1750 to disable UDP checksum generation on transmit.
1752 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1753 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1754 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1755 this macro to check "conn" parameter in api_msg.c functions.
1757 2007-06-11 Simon Goldschmidt
1758 * sockets.c, sockets.h: Added UDP lite support for sockets
1760 2007-06-10 Simon Goldschmidt
1761 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1762 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1765 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1766 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1767 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1768 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1769 (see TODO mark in the source code).
1771 2007-06-09 Simon Goldschmidt
1772 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1773 etharp_output() to match netif->output so etharp_output() can be used
1774 directly as netif->output to save one function call.
1776 2007-06-08 Simon Goldschmidt
1777 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1778 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1779 added initialization of those to ethernetif, slipif and loopif.
1781 2007-05-18 Simon Goldschmidt
1782 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1783 (defaulting to off for now) that can be set to 0 to send fragmented
1784 packets by passing PBUF_REFs down the stack.
1786 2007-05-23 Frédéric Bernon
1787 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1788 connections, such present in patch #5959.
1790 2007-05-23 Frédéric Bernon
1791 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1792 code in only one part...
1794 2007-05-18 Simon Goldschmidt
1795 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1796 elements to overflow. This is achieved by adding some bytes before and after
1797 each pool element (increasing their size, of course), filling them with a
1798 prominent value and checking them on freeing the element.
1799 Set it to 2 to also check every element in every pool each time memp_malloc()
1800 or memp_free() is called (slower but more helpful).
1802 2007-05-10 Simon Goldschmidt
1803 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1804 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1807 2007-05-11 Frédéric Bernon
1808 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1809 Include a function pointer instead of a table index in the message to reduce
1810 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1811 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1813 2007-05-10 Simon Goldschmidt
1814 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1815 \ extern "C" {' in all header files. Now you can write your application using
1816 the lwIP stack in C++ and simply #include the core files. Note I have left
1817 out the netif/ppp/*h header files for now, since I don't know which files are
1818 included by applications and which are for internal use only.
1820 2007-05-09 Simon Goldschmidt
1821 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1822 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1823 situations where some compilers might inline the copy and save a function
1824 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1826 2007-05-08 Simon Goldschmidt
1827 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1828 to be overriden in case the C-library malloc implementation is not protected
1829 against concurrent access.
1831 2007-05-04 Simon Goldschmidt (Atte Kojo)
1832 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1833 multiple packets to the same host.
1835 2007-05-04 Frédéric Bernon, Jonathan Larmour
1836 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1837 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1838 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1839 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1840 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1841 these fields are now renamed "addr" & "port".
1843 2007-04-11 Jonathan Larmour
1844 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1845 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1846 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1847 by the port in sys_arch.h if desired.
1849 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1850 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1851 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1852 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1854 2007-04-05 Frédéric Bernon
1855 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1857 2007-04-04 Simon Goldschmidt
1858 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1859 use this for and architecture-independent form to tell the compiler you intentionally
1860 are not using this variable. Can be overriden in cc.h.
1862 2007-03-28 Frédéric Bernon
1863 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1864 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1865 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1866 It will be used by DHCP to register a client hostname, but can also be use when you call
1869 2007-03-28 Frédéric Bernon
1870 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1871 initialize a network interface's flag with. It tell this interface is an ethernet
1872 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1873 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1875 2007-03-26 Frédéric Bernon, Jonathan Larmour
1876 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1877 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1878 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1879 is done in tcpip_init function.
1881 2007-03-22 Frédéric Bernon
1882 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1883 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1884 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1885 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1886 but never used. Fix msg_in.c with the correct #if test for a stat display.
1888 2007-03-21 Kieran Mansley
1889 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1890 Provides callback on netif up/down state change.
1892 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1893 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1894 ip.c, netif.h, tcpip.c, opt.h:
1895 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1896 filter per all network interfaces. Declare a new function in netif to enable to
1897 control the MAC filter (to reduce lwIP traffic processing).
1899 2007-03-11 Frédéric Bernon
1900 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1901 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1902 unless you know what you're doing (default are RFC1122 compliant). Note
1903 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1905 2007-03-08 Frédéric Bernon
1906 * tcp.h: Keepalive values can be configured at compile time, but don't change
1907 this unless you know what you're doing (default are RFC1122 compliant).
1909 2007-03-08 Frédéric Bernon
1910 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1911 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1912 on UDP sockets/netconn.
1914 2007-03-08 Simon Goldschmidt
1915 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1917 2007-03-06 Frédéric Bernon
1918 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1919 Implement SO_RCVTIMEO on UDP sockets/netconn.
1921 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1922 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1923 on the stack and remove the API msg type from memp
1925 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1926 * sockets.h, sockets.c: Move socket initialization to new
1927 lwip_socket_init() function.
1928 NOTE: this changes the API with ports. Ports will have to be
1929 updated to call lwip_socket_init() now.
1931 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1932 * api_lib.c: Use memcpy in netbuf_copy_partial.
1937 2008-03-17 Frédéric Bernon, Ed Kerekes
1938 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1939 some problems to fill the IP header on some targets, use now the
1940 ip.h macros to do it).
1942 2008-03-13 Frédéric Bernon
1943 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1944 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1945 TCP connection caused a crash. Note that using (lwip_)recvfrom
1946 like this is a bit slow and that using (lwip)getpeername is the
1947 good lwip way to do it (so, using recv is faster on tcp sockets).
1949 2008-03-12 Frédéric Bernon, Jonathan Larmour
1950 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1951 recv_raw() does not consume data", and the ping sample (with
1952 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1953 returned the IP payload, without the IP header).
1955 2008-03-04 Jonathan Larmour
1956 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1957 and/or warnings on some systems where mem_size_t and size_t differ.
1958 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1960 2008-03-04 Kieran Mansley (contributions by others)
1961 * Numerous small compiler error/warning fixes from contributions to
1962 mailing list after 1.3.0 release candidate made.
1964 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1965 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1967 2008-01-15 Kieran Mansley
1968 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1969 prevented from sending by a small send window, not just a zero
1972 2008-01-09 Jonathan Larmour
1973 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1974 conflict with Linux system headers.
1976 2008-01-06 Jonathan Larmour
1977 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1978 address entirely on receiving a DHCPNAK, and restarting discovery.
1980 2007-12-21 Simon Goldschmidt
1981 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1982 is not protected" by using new macros for interlocked access to modify/test
1983 netconn->recv_avail.
1985 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1986 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1988 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1989 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1990 of silly window avoidance and prevent lwIP from shrinking the window)
1992 2007-12-04 Simon Goldschmidt
1993 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1994 data packet was lost): add assert that all segment lists are empty in
1995 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1996 state from LAST_ACK in tcp_process
1998 2007-12-02 Simon Goldschmidt
1999 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2000 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2001 has to be set to 0 in lwipopts.h
2003 2007-12-02 Simon Goldschmidt
2004 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2005 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2006 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2007 This is a fix for thread-safety and allocates all items needed for a netconn
2008 when the netconn is created.
2010 2007-11-30 Simon Goldschmidt
2011 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2012 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2013 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2014 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2016 2007-11-27 Simon Goldschmidt
2017 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2018 letting ip_route only use netifs that are up.
2020 2007-11-27 Simon Goldschmidt
2021 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2022 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2023 sockets block most operations once they have seen a fatal error.
2025 2007-11-27 Simon Goldschmidt
2026 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2027 netif to send as an argument (to be able to send on netifs that are down).
2029 2007-11-26 Simon Goldschmidt
2030 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2033 2007-11-21 Simon Goldschmidt
2034 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2035 Fixed the nagle algorithm; nagle now also works for all raw API applications
2036 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2038 2007-11-12 Frédéric Bernon
2039 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2040 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2041 context in do_getaddr.
2043 2007-11-10 Simon Goldschmidt
2044 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2045 happen any time). Now the packet simply isn't enqueued when out of memory.
2047 2007-11-01 Simon Goldschmidt
2048 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2049 TCP_MSS if that is smaller) as long as no MSS option is received from the
2052 2007-11-01 Simon Goldschmidt
2053 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2054 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2055 sending our configured TCP_MSS instead of the one received).
2057 2007-11-01 Simon Goldschmidt
2058 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2059 calculated based on the configured TCP_MSS, not on the MSS option received
2062 2007-10-09 Simon Goldschmidt
2063 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2064 short and also was generated wrong if checksum coverage != tot_len;
2065 receive: checksum was calculated wrong if checksum coverage != tot_len
2067 2007-10-08 Simon Goldschmidt
2068 * mem.c: lfree was not updated in mem_realloc!
2070 2007-10-07 Frédéric Bernon
2071 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2072 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2073 this change cause an API breakage for netconn_addr, since a parameter
2074 type change. Any compiler should cause an error without any changes in
2075 yours netconn_peer calls (so, it can't be a "silent change"). It also
2076 reduce a little bit the footprint for socket layer (lwip_getpeername &
2077 lwip_getsockname use now a common lwip_getaddrname function since
2078 netconn_peer & netconn_addr have the same parameters).
2080 2007-09-20 Simon Goldschmidt
2081 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2082 by checking tcp_tw_pcbs also
2084 2007-09-19 Simon Goldschmidt
2085 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2087 2007-09-15 Mike Kleshov
2088 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2090 2007-09-06 Frédéric Bernon
2091 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2092 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2093 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2094 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2096 2007-08-30 Frédéric Bernon
2097 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2098 and fix some coding style.
2100 2007-08-28 Frédéric Bernon
2101 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2102 kind of packets. These packets are considered like Ethernet packets (payload
2103 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2104 are considered like IP packets (payload pointing to iphdr).
2106 2007-08-27 Frédéric Bernon
2107 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2108 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2109 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2111 2007-08-24 Kieran Mansley
2112 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2113 compiler (Paradigm C++)
2115 2007-08-09 Frédéric Bernon, Bill Florac
2116 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2117 Introduce IGMP_STATS to centralize statistics management.
2119 2007-08-09 Frédéric Bernon, Bill Florac
2120 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2121 packet on a udp pcb binded on an netif's IP address, and not on "any".
2123 2007-08-09 Frédéric Bernon, Bill Florac
2124 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2125 This is mainly on using lookup/lookfor, and some coding styles...
2127 2007-07-26 Frédéric Bernon (and "thedoctor")
2128 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2130 2007-07-25 Simon Goldschmidt
2131 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2132 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2133 (tcp_output is called again later from tcp timers).
2135 2007-07-25 Simon Goldschmidt
2136 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2137 copy_from_pbuf, which illegally modified the given pbuf.
2139 2007-07-25 Simon Goldschmidt
2140 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2141 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2143 2007-07-24 Simon Goldschmidt
2144 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2145 correct state (must be CLOSED).
2147 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2148 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2149 allocation. It now returns NULL.
2151 2007-07-13 Frédéric Bernon
2152 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2155 2007-07-13 Frédéric Bernon
2156 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2157 because current code doesn't follow rawapi.txt documentation.
2159 2007-07-13 Kieran Mansley
2160 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2161 out of sequence processing of received packets
2163 2007-07-03 Simon Goldschmidt
2164 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2165 assumption is made that this pbuf is in one piece (i.e. not chained). These
2166 assumptions clash with the possibility of converting to fully pool-based
2167 pbuf implementations, where PBUF_RAM pbufs might be chained.
2169 2007-07-03 Simon Goldschmidt
2170 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2171 when closing tcp netconns: removed conn->sem, less context switches when
2172 closing, both netconn_close and netconn_delete should safely close tcp
2175 2007-07-02 Simon Goldschmidt
2176 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2177 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2178 to cache ARP table indices with each pcb instead of single-entry cache for
2181 2007-07-02 Simon Goldschmidt
2182 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2183 warnings when assigning to smaller types.
2185 2007-06-28 Simon Goldschmidt
2186 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2188 2007-06-28 Simon Goldschmidt
2189 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2190 a segment contained chained pbufs)
2192 2007-06-28 Frédéric Bernon
2193 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2194 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2195 possible to define this macro in your own lwipopts.h to always use C library's
2196 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2198 2007-06-28 Frédéric Bernon
2199 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2200 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2201 in api_lib/api_msg (use pointers and not type with table, etc...)
2203 2007-06-26 Simon Goldschmidt
2204 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2206 2007-06-25 Simon Goldschmidt
2207 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2208 for udp packets with no matching pcb.
2210 2007-06-25 Simon Goldschmidt
2211 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2212 could get udp input packets if the remote side matched.
2214 2007-06-13 Simon Goldschmidt
2215 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2216 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2218 2007-06-13 Simon Goldschmidt
2219 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2220 -> netconn_new_..() does not allocate a new connection for unsupported
2223 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2224 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2225 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2227 2007-06-13 Frédéric Bernon, Matthias Weisser
2228 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2229 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2230 some macro names collision with some OS macros.
2232 2007-06-11 Simon Goldschmidt
2233 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2234 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2235 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2238 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2239 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2240 where TCP flags wasn't initialized in tcp_keepalive.
2242 2007-06-03 Simon Goldschmidt
2243 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2244 registered, p->payload was modified without modifying p->len if sending
2245 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2247 2007-06-03 Simon Goldschmidt
2248 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2249 re-used the input pbuf even if that didn't have enough space to include the
2250 link headers. Now the space is tested and a new pbuf is allocated for the
2251 echo response packet if the echo request pbuf isn't big enough.
2253 2007-06-01 Simon Goldschmidt
2254 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2256 2007-05-23 Frédéric Bernon
2257 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2258 allocated by do_listen if success) and netconn_accept errors handling. In
2259 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2260 by ASSERT, except for netconn_delete.
2262 2007-05-23 Frédéric Bernon
2263 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2264 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2265 directly close the recvmbox).
2267 2007-05-22 Simon Goldschmidt
2268 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2269 bound but unconnected (and non-listening) tcp_pcbs.
2271 2007-05-22 Frédéric Bernon
2272 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2273 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2274 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2275 like "sys_timeout" in their application threads.
2277 2007-05-22 Frédéric Bernon
2278 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2279 which parameters are used by which do_xxx function, and to avoid "misusing"
2280 parameters (patch #5938).
2282 2007-05-22 Simon Goldschmidt
2283 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2284 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2285 is only 8 bits wide. This affects the api, as there, the protocol was
2288 2007-05-18 Simon Goldschmidt
2289 * memp.c: addition to patch #5913: smaller pointer was returned but
2290 memp_memory was the same size -> did not save memory.
2292 2007-05-16 Simon Goldschmidt
2293 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2296 2007-05-16 Simon Goldschmidt
2297 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2298 as the one of the netif used for sending to prevent sending from old
2299 addresses after a netif address gets changed (partly fixes bug #3168).
2301 2007-05-16 Frédéric Bernon
2302 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2303 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2304 tcpip_init) because we have to be sure that network interfaces are already
2305 added (mac filter is updated only in igmp_init for the moment).
2307 2007-05-16 Simon Goldschmidt
2308 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2309 into sys_arch_sem_wait calls to prevent timers from running while waiting
2310 for the heap. This fixes bug #19167.
2312 2007-05-13 Simon Goldschmidt
2313 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2314 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2317 2007-05-07 Simon Goldschmidt
2318 * mem.c: Another attempt to fix bug #17922.
2320 2007-05-04 Simon Goldschmidt
2321 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2322 implementation so that it can be reused (don't allocate the target
2323 pbuf inside pbuf_copy()).
2325 2007-05-04 Simon Goldschmidt
2326 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2327 to save a little RAM (next pointer of memp is not used while not in pool).
2330 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2333 2007-04-23 Simon Goldschmidt
2334 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2335 in NULL reference for incoming TCP packets". Loopif has to be configured
2336 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2337 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2338 putting packets on a list that is fed to the stack by calling loopif_poll()
2339 (single-thread / NO_SYS / polling environment where e.g.
2340 netif->input() = ip_input).
2342 2007-04-17 Jonathan Larmour
2343 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2344 the difference between two u16_t's.
2345 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2346 MEMP_NUM_NETCONN in sockets.c right now.
2348 2007-04-12 Jonathan Larmour
2349 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2351 2007-04-12 Kieran Mansley
2352 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2353 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2355 2007-04-11 Simon Goldschmidt
2356 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2357 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2358 pbuf.c: removed functions no needed any more (by etharp).
2360 2007-04-11 Kieran Mansley
2361 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2362 "Constant is long" warnings with 16bit compilers. Contributed by
2363 avatar@mmlab.cse.yzu.edu.tw
2365 2007-04-05 Frédéric Bernon, Jonathan Larmour
2366 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2367 the mailbox is active". Now, the post is only done during a connect, and do_send,
2368 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2370 2007-04-03 Frédéric Bernon
2371 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2372 packets. See patch #5834.
2374 2007-03-30 Frédéric Bernon
2375 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2376 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2378 2007-03-30 Frédéric Bernon
2379 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2380 others environment defines (these were too "generic").
2382 2007-03-28 Frédéric Bernon
2383 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2384 result and can cause a crash. lwip_send now check netbuf_ref result.
2386 2007-03-28 Simon Goldschmidt
2387 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2388 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2389 defined. This is the way it should have been already (looking at
2392 2007-03-28 Kieran Mansley
2393 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2394 IP and TCP headers *and* physical link headers
2396 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2397 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2398 to send some garbage. It is not a definitive solution, but the patch does solve
2399 the problem for most cases.
2401 2007-03-22 Frédéric Bernon
2402 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2404 2007-03-22 Frédéric Bernon
2405 * api_lib.c: somes resources couldn't be freed if there was errors during
2406 netconn_new_with_proto_and_callback.
2408 2007-03-22 Frédéric Bernon
2409 * ethernetif.c: update netif->input calls to check return value. In older ports,
2410 it's a good idea to upgrade them, even if before, there could be another problem
2411 (access to an uninitialized mailbox).
2413 2007-03-21 Simon Goldschmidt
2414 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2415 by casting to unsigned).
2417 2007-03-21 Frédéric Bernon
2418 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2419 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2420 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2421 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2422 faster and more reliable communication between api_lib and tcpip.
2424 2007-03-21 Frédéric Bernon
2425 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2427 2007-03-21 Frédéric Bernon
2428 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2430 2007-03-21 Kieran Mansley
2431 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2434 2007-03-21 Kieran Mansley
2435 * Fix all uses of pbuf_header to check the return value. In some
2436 cases just assert if it fails as I'm not sure how to fix them, but
2437 this is no worse than before when they would carry on regardless
2440 2007-03-21 Kieran Mansley
2441 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2442 comment out missing header include in icmp.c
2444 2007-03-20 Frédéric Bernon
2445 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2446 synchronized with memp.h.
2448 2007-03-20 Frédéric Bernon
2449 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2450 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2451 network interfaces. Also fix a compiler warning.
2453 2007-03-20 Kieran Mansley
2454 * udp.c: Only try and use pbuf_header() to make space for headers if
2455 not a ROM or REF pbuf.
2457 2007-03-19 Frédéric Bernon
2458 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2461 2007-03-19 Frédéric Bernon
2462 * Remove unimplemented "memp_realloc" function from memp.h.
2464 2007-03-11 Simon Goldschmidt
2465 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2468 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2469 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2470 (missing `const' qualifier in socket functions), to get more compatible to
2471 standard POSIX sockets.
2473 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2474 * sockets.c: Add asserts inside bind, connect and sendto to check input
2475 parameters. Remove excessive set_errno() calls after get_socket(), because
2476 errno is set inside of get_socket(). Move last sock_set_errno() inside
2479 2007-03-09 Simon Goldschmidt
2480 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2481 was allocated too small.
2483 2007-03-06 Simon Goldschmidt
2484 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2485 the stack from concurrent access.
2487 2007-03-06 Frédéric Bernon, Dmitry Potapov
2488 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2489 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2491 2007-03-06 Simon Goldschmidt
2492 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2493 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2495 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2496 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2497 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2498 Allow to do ARP processing for incoming packets inside tcpip_thread
2499 (protecting ARP layer against concurrent access). You can also disable
2500 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2501 Older ports have to use tcpip_ethinput.
2503 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2504 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2505 from pointer target type"
2507 2007-03-05 Frédéric Bernon
2508 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2509 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2511 2007-03-04 Frédéric Bernon
2512 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2515 2007-03-04 Frédéric Bernon
2516 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2518 The api_msg struct stay on the stack (not moved to netconn struct).
2520 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2521 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2522 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2523 Also fixed cast warning in pbuf_alloc()
2525 2007-03-04 Simon Goldschmidt
2526 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2527 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2529 2007-03-03 Frédéric Bernon
2530 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2531 It is static, and never used in udp.c except udp_init().
2533 2007-03-02 Simon Goldschmidt
2534 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2535 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2536 initialized before tcpip_thread is running (e.g. before OS is started)
2538 2007-03-02 Frédéric Bernon
2539 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2542 2007-02-28 Kieran Mansley
2543 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2544 outside the region of the pbuf by pbuf_header()
2546 2007-02-28 Kieran Mansley
2547 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2548 when supplied timeout is also non-zero
2552 2006-12-05 Leon Woestenberg
2553 * CHANGELOG: Mention STABLE-1.2.0 release.
2557 2006-12-01 Christiaan Simons
2558 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2559 Note this is a workaround. Currently I have no other options left.
2561 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2562 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2563 to include/lwip/opt.h.
2564 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2565 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2566 * opt.h: Add above new options.
2568 2006-08-18 Christiaan Simons
2569 * tcp_{in,out}.c: added SNMP counters.
2570 * ipv4/ip.c: added SNMP counters.
2571 * ipv4/ip_frag.c: added SNMP counters.
2573 2006-08-08 Christiaan Simons
2574 * etharp.{c,h}: added etharp_find_addr() to read
2575 (stable) ethernet/IP address pair from ARP table
2577 2006-07-14 Christiaan Simons
2578 * mib_structs.c: added
2579 * include/lwip/snmp_structs.h: added
2580 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2582 2006-07-06 Christiaan Simons
2583 * snmp/asn1_{enc,dec}.c added
2585 * snmp/msg_{in,out}.c added
2586 * include/lwip/snmp_asn1.h added
2587 * include/lwip/snmp_msg.h added
2588 * doc/snmp_agent.txt added
2590 2006-03-29 Christiaan Simons
2591 * inet.c, inet.h: Added platform byteswap support.
2592 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2593 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2597 2006-11-30 Christiaan Simons
2598 * dhcp.c: Fixed false triggers of request_timeout.
2600 2006-11-28 Christiaan Simons
2601 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2603 2006-10-11 Christiaan Simons
2604 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2605 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2606 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2607 identifier from 170 to 136 (bug #17574).
2609 2006-10-10 Christiaan Simons
2610 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2612 2006-08-17 Christiaan Simons
2613 * udp.c: Fixed bug #17200, added check for broadcast
2614 destinations for PCBs bound to a unicast address.
2616 2006-08-07 Christiaan Simons
2617 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2619 2006-06-27 Christiaan Simons
2620 * api_msg.c: Applied patch for cold case (bug #11135).
2621 In accept_function() ensure newconn->callback is always initialized.
2623 2006-06-15 Christiaan Simons
2624 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2625 facilitate printing of mem_size_t and u16_t statistics.
2627 2006-06-14 Christiaan Simons
2628 * api_msg.c: Applied patch #5146 to handle allocation failures
2629 in accept() by Kevin Lawson.
2631 2006-05-26 Christiaan Simons
2632 * api_lib.c: Removed conn->sem creation and destruction
2633 from netconn_write() and added sys_sem_new to netconn_new_*.
2637 2006-03-03 Christiaan Simons
2638 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2639 access and added pbuf_alloc() return value checks.
2641 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2642 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2643 now handled by the checksum routine properly.
2645 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2646 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2647 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2649 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2650 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2651 submitted by Mitrani Hiroshi.
2653 2005-12-15 Christiaan Simons
2654 * inet.c: Disabled the added summing routine to preserve code space.
2656 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2657 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2658 Added Curt McDowell's optimized checksumming routine for future
2659 inclusion. Need to create test case for unaliged, aligned, odd,
2660 even length combination of cases on various endianess machines.
2662 2005-12-09 Christiaan Simons
2663 * inet.c: Rewrote standard checksum routine in proper portable C.
2665 2005-11-25 Christiaan Simons
2666 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2667 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2668 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2670 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2671 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2672 routine by Peter Jolasson.
2673 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2675 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2676 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2677 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2679 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2680 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2682 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2683 * udp.c: UDP pcb->recv() was called even when it was NULL.
2687 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2688 * etharp.*: Disabled multiple packets on the ARP queue.
2689 This clashes with TCP queueing.
2691 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2692 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2693 Halved the ARP period, doubled the period counts.
2694 ETHARP_MAX_PENDING now should be at least 2. This prevents
2695 the counter from reaching 0 right away (which would allow
2696 too little time for ARP responses to be received).
2698 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2699 * dhcp.c: Decline messages were not multicast but unicast.
2700 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2701 Do not try hard to insert arbitrary packet's source address,
2702 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2703 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2704 querying an address will see it appear in the cache (DHCP could
2705 suffer from this when a server invalidly gave an in-use address.)
2706 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2707 comparing network addresses (identifiers), not the network masks
2709 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2710 IP address actually belongs to the network of the given interface.
2712 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2713 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2717 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2718 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2719 even if one is already pending, if the rcv_wnd is above a threshold
2720 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2721 delayed ACK in order to open the window if the stack is only receiving data.
2723 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2724 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2726 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2727 * etharp.c: Make sure the first pbuf queued on an ARP entry
2728 is properly ref counted.
2730 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2731 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2732 warnings about comparison.
2733 * pbuf.c: Stopped compiler complaining of empty if statement
2734 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2735 * tcp.c: Stopped compiler complaining of empty if statement
2736 when LWIP_DEBUGF() empty.
2737 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2738 * inet.c: Added a couple of casts to quiet the compiler.
2739 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2741 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2742 * inet.c: Made data types consistent in inet_ntoa().
2743 Added casts for return values of checksum routines, to pacify compiler.
2744 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2745 Small corrections to some debugging statements, to pacify compiler.
2747 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2748 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2749 * ethernetif.c Updated low_level_output() to match prototype for
2750 netif->linkoutput and changed low_level_input() similarly for consistency.
2751 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2752 of raw_recv() in raw.h and so avoid compiler error.
2753 * sockets.c: Added trivial (int) cast to keep compiler happier.
2754 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2760 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2761 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2762 your cc.h file defines this either 1 or 0. If non-defined,
2764 * .c: Added <string.h> and <errno.h> includes where used.
2765 * etharp.c: Made some array indices unsigned.
2767 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2768 * netif.*: Added netif_set_up()/down().
2769 * dhcp.c: Changes to restart program flow.
2771 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2772 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2773 single-pass lookup for different candidates. Should exploit locality.
2775 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2776 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2777 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2778 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2779 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2783 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2784 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2785 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2786 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2787 is to prefix the 14-bit Ethernet headers with two padding bytes.
2789 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2790 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2791 * etharp.c: Fixed the case where the packet that initiates the ARP request
2792 is not queued, and gets lost. Fixed the case where the packets destination
2793 address is already known; we now always queue the packet and perform an ARP
2800 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2801 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2802 * Fixed two possible NULL references in rare cases.
2808 * Fixed DHCP which did not include the IP address in DECLINE messages.
2812 * etharp.c has been hauled over a bit.
2818 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2819 * Packets sent from ARP queue had invalid source hardware address.
2823 * Pass-by ARP requests do now update the cache.
2827 * No longer dependent on ctype.h.
2828 * New socket options.
2829 * Raw IP pcb support.
2835 * Some debug formatters and casts fixed.
2836 * Numereous fixes in PPP.
2840 * DEBUGF now is LWIP_DEBUGF
2841 * pbuf_dechain() has been re-enabled.
2842 * Mentioned the changed use of CVS branches in README.
2848 * Fixed pool pbuf memory leak in pbuf_alloc().
2849 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2850 Reported by Savin Zlobec.
2852 * PBUF_POOL chains had their tot_len field not set for non-first
2853 pbufs. Fixed in pbuf_alloc().
2857 * Added PPP stack contributed by Marc Boucher
2861 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2863 * ARP queueuing now queues the latest packet instead of the first.
2864 This is the RFC recommended behaviour, but can be overridden in
2871 * TCP has been fixed to deal with the new use of the pbuf->ref
2874 * DHCP dhcp_inform() crash bug fixed.
2878 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2879 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2880 Implemented by David Haas.
2886 * The packet buffer implementation has been enhanced to support
2887 zero-copy and copy-on-demand for packet buffers which have their
2888 payloads in application-managed memory.
2889 Implemented by David Haas.
2891 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2892 if an outgoing packet can be directly sent on the link, or perform
2893 a copy-on-demand when necessary.
2895 The application can safely assume the packet is sent, and the RAM
2896 is available to the application directly after calling udp_send()
2897 or similar function.
2901 * ARP_QUEUEING should now correctly work for all cases, including
2903 Implemented by Leon Woestenberg.
2907 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2908 to a '0.0.0.0' IP address.
2910 * The packet buffer implementation is changed. The pbuf->ref counter
2911 meaning has changed, and several pbuf functions have been
2912 adapted accordingly.
2914 * netif drivers have to be changed to set the hardware address length field
2915 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2916 See the contrib/ports/c16x cs8900 driver as a driver example.
2918 * netif's have a dhcp field that must be initialized to NULL by the driver.
2919 See the contrib/ports/c16x cs8900 driver as a driver example.
2921 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2922 logged in CVS but have not been explained here.
2924 (0.5.3) Changes since version 0.5.2
2928 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2929 threads because it wasn't protected by semaphores.
2933 * struct ip_addr now packed.
2935 * The name of the time variable in arp.c has been changed to ctime
2936 to avoid conflicts with the time() function.
2938 (0.5.2) Changes since version 0.5.1
2942 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2946 * A bug in tcp_parseopt() could cause the stack to hang because of a
2947 malformed TCP option.
2949 * The address of new connections in the accept() function in the BSD
2950 socket library was not handled correctly.
2952 * pbuf_dechain() did not update the ->tot_len field of the tail.
2954 * Aborted TCP connections were not handled correctly in all
2959 * All protocol header structs are now packed.
2961 * The ->len field in the tcp_seg structure now counts the actual
2962 amount of data, and does not add one for SYN and FIN segments.
2964 (0.5.1) Changes since version 0.5.0
2968 * Possible to run as a user process under Linux.
2970 * Preliminary support for cross platform packed structs.
2972 * ARP timer now implemented.
2976 * TCP output queue length was badly initialized when opening
2979 * TCP delayed ACKs were not sent correctly.
2981 * Explicit initialization of BSS segment variables.
2983 * read() in BSD socket library could drop data.
2985 * Problems with memory alignment.
2987 * Situations when all TCP buffers were used could lead to
2990 * TCP MSS option wasn't parsed correctly.
2992 * Problems with UDP checksum calculation.
2994 * IP multicast address tests had endianess problems.
2996 * ARP requests had wrong destination hardware address.
3000 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3002 * A ->linkoutput() member was added to struct netif.
3004 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3006 * ntoh* macros are now null definitions for big endian CPUs.
3008 (0.5.0) Changes since version 0.4.2
3012 * Redesigned operating system emulation layer to make porting easier.
3014 * Better control over TCP output buffers.
3016 * Documenation added.
3020 * Locking issues in buffer management.
3022 * Bugfixes in the sequential API.
3024 * IP forwarding could cause memory leakage. This has been fixed.
3028 * Directory structure somewhat changed; the core/ tree has been
3031 (0.4.2) Changes since version 0.4.1
3035 * Experimental ARP implementation added.
3037 * Skeleton Ethernet driver added.
3039 * Experimental BSD socket API library added.
3043 * In very intense situations, memory leakage could occur. This has
3048 * Variables named "data" and "code" have been renamed in order to
3049 avoid name conflicts in certain compilers.
3051 * Variable++ have in appliciable cases been translated to ++variable
3052 since some compilers generate better code in the latter case.
3054 (0.4.1) Changes since version 0.4
3058 * TCP: Connection attempts time out earlier than data
3059 transmissions. Nagle algorithm implemented. Push flag set on the
3060 last segment in a burst.
3062 * UDP: experimental support for UDP-Lite extensions.
3066 * TCP: out of order segments were in some cases handled incorrectly,
3067 and this has now been fixed. Delayed acknowledgements was broken
3068 in 0.4, has now been fixed. Binding to an address that is in use
3069 now results in an error. Reset connections sometimes hung an
3070 application; this has been fixed.
3072 * Checksum calculation sometimes failed for chained pbufs with odd
3073 lengths. This has been fixed.
3075 * API: a lot of bug fixes in the API. The UDP API has been improved
3076 and tested. Error reporting and handling has been
3077 improved. Logical flaws and race conditions for incoming TCP
3078 connections has been found and removed.
3080 * Memory manager: alignment issues. Reallocating memory sometimes
3081 failed, this has been fixed.
3083 * Generic library: bcopy was flawed and has been fixed.
3087 * API: all datatypes has been changed from generic ones such as
3088 ints, to specified ones such as u16_t. Functions that return
3089 errors now have the correct type (err_t).
3091 * General: A lot of code cleaned up and debugging code removed. Many
3092 portability issues have been fixed.
3094 * The license was changed; the advertising clause was removed.
3098 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3099 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3102 (0.4) Changes since version 0.3.1
3104 * Memory management has been radically changed; instead of
3105 allocating memory from a shared heap, memory for objects that are
3106 rapidly allocated and deallocated is now kept in pools. Allocation
3107 and deallocation from those memory pools is very fast. The shared
3108 heap is still present but is used less frequently.
3110 * The memory, memory pool, and packet buffer subsystems now support
3111 4-, 2-, or 1-byte alignment.
3113 * "Out of memory" situations are handled in a more robust way.
3115 * Stack usage has been reduced.
3117 * Easier configuration of lwIP parameters such as memory usage,
3118 TTLs, statistics gathering, etc. All configuration parameters are
3119 now kept in a single header file "lwipopts.h".
3121 * The directory structure has been changed slightly so that all
3122 architecture specific files are kept under the src/arch
3125 * Error propagation has been improved, both in the protocol modules
3128 * The code for the RTXC architecture has been implemented, tested
3131 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3132 the Internet checksum modules.
3134 * Bugs related to porting between a 32-bit and a 16-bit architecture
3135 have been found and corrected.
3137 * The license has been changed slightly to conform more with the
3138 original BSD license, including the advertisement clause.
3140 (0.3.1) Changes since version 0.3
3142 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3143 RAM never returned the RAM when the pbuf was deallocated.
3145 * TCP congestion control, window updates and retransmissions did not
3146 work correctly. This has now been fixed.
3148 * Bugfixes in the API.
3150 (0.3) Changes since version 0.2
3152 * New and improved directory structure. All include files are now
3153 kept in a dedicated include/ directory.
3155 * The API now has proper error handling. A new function,
3156 netconn_err(), now returns an error code for the connection in
3159 * Improvements in the memory management subsystem. The system now
3160 keeps a pointer to the lowest free memory block. A new function,
3161 mem_malloc2() tries to allocate memory once, and if it fails tries
3162 to free some memory and retry the allocation.
3164 * Much testing has been done with limited memory
3165 configurations. lwIP now does a better job when overloaded.
3167 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3169 * Many bugfixes in the TCP code:
3171 - Fixed a bug in tcp_close().
3173 - The TCP receive window was incorrectly closed when out of
3174 sequence segments was received. This has been fixed.
3176 - Connections are now timed-out of the FIN-WAIT-2 state.
3178 - The initial congestion window could in some cases be too
3179 large. This has been fixed.
3181 - The retransmission queue could in some cases be screwed up. This
3184 - TCP RST flag now handled correctly.
3186 - Out of sequence data was in some cases never delivered to the
3187 application. This has been fixed.
3189 - Retransmitted segments now contain the correct acknowledgment
3190 number and advertised window.
3192 - TCP retransmission timeout backoffs are not correctly computed
3193 (ala BSD). After a number of retransmissions, TCP now gives up
3196 * TCP connections now are kept on three lists, one for active
3197 connections, one for listening connections, and one for
3198 connections that are in TIME-WAIT. This greatly speeds up the fast
3199 timeout processing for sending delayed ACKs.
3201 * TCP now provides proper feedback to the application when a
3202 connection has been successfully set up.
3204 * More comments have been added to the code. The code has also been
3205 somewhat cleaned up.
3207 (0.2) Initial public release.