5 * [Enter new changes just after this line - do not remove this line]
9 2011-09-27: Simon Goldschmidt
10 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
11 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
13 2011-09-21: Simon Goldschmidt
14 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
15 send (TCP only, bug #33820)
17 2011-09-21: Simon Goldschmidt
18 * init.c: Converted runtime-sanity-checks into compile-time checks that can
19 be disabled (since runtime checks can often not be seen on embedded targets)
21 2011-09-11: Simon Goldschmidt
22 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
23 to get a clear separation of which functions an application or port may use
26 2011-09-11: Simon Goldschmidt
27 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
28 initial local TCP/UDP ports (so that different port ranges are used after
29 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
31 2011-09-03: Simon Goldschmidt
32 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
34 2011-08-24: Simon Goldschmidt
35 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
37 2011-07-26: Simon Goldschmidt
38 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
39 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
41 2011-07-21: Simon Goldschmidt (patch by hanhui)
42 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
43 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
44 Also added code to allow ip_forward() to forward non-broadcast packets to
45 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
47 2011-07-21: Simon Goldschmidt
48 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
49 ioctl/FIONREAD return the size of the next pending datagram.
51 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
52 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
55 2011-05-25: Simon Goldschmidt
56 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
57 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
58 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
59 code so that the code is more readable.
61 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
62 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
63 Ivan! (this is work in progress: we're just post release anyway :-)
65 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
66 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
72 2011-10-18: Simon Goldschmidt
73 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
75 2011-10-18: Simon Goldschmidt
76 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
78 2011-10-17: Simon Goldschmidt
79 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
81 2011-10-13: Simon Goldschmidt
82 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
83 zero window is received) by starting the persist timer when a zero window is
84 received, not when we have more data queued for sending than fits into the
87 2011-10-13: Simon Goldschmidt
88 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
90 2011-10-13: Simon Goldschmidt
91 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
92 used and not all protocols are enabled
94 2011-10-12: Simon Goldschmidt
95 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
97 2011-10-09: Simon Goldschmidt
98 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
99 byte value when pcb->unacked != NULL
101 2011-10-09: Simon Goldschmidt
102 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
104 2011-09-27: Simon Goldschmidt
105 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
107 2011-09-27: Simon Goldschmidt
108 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
110 2011-09-27: Simon Goldschmidt
111 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
113 2011-09-24: Simon Goldschmidt
114 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
116 2011-09-23: Simon Goldschmidt
117 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
118 the last packet including FIN can lose data
120 2011-09-22: Simon Goldschmidt
121 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
124 2011-09-21: Simon Goldschmidt
125 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
128 2011-09-20: Simon Goldschmidt
129 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
131 2011-09-11: Simon Goldschmidt
132 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
135 2011-09-09: Simon Goldschmidt
136 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
139 2011-09-03: Simon Goldschmidt
140 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
141 is aggregated and sent to application
143 2011-09-01: Simon Goldschmidt
144 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
147 2011-09-01: Simon Goldschmidt
148 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
150 2011-08-24: Simon Goldschmidt
151 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
153 2011-08-24: Simon Goldschmidt
154 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
155 accept() on UDP connections
157 2011-08-24: Simon Goldschmidt
158 * sockets.h: fixed bug #34057 socklen_t should be a typedef
160 2011-08-24: Simon Goldschmidt
161 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
163 2011-08-24: Simon Goldschmidt
164 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
166 2011-08-24: Simon Goldschmidt
167 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
169 2011-08-22: Simon Goldschmidt
170 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
171 merely prevents nagle from not transmitting fast after closing.)
173 2011-07-22: Simon Goldschmidt
174 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
175 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
176 lwip_send() sends as much as possible for non-blocking sockets
178 2011-07-22: Simon Goldschmidt
179 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
180 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
181 at regular intervals from main level.
183 2011-07-21: Simon Goldschmidt
184 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
185 sending an ARP request when an ARP entry is used in the last minute before
188 2011-07-04: Simon Goldschmidt
189 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
191 2011-06-26: Simon Goldschmidt
192 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
193 updating its documentation only.
195 2011-06-26: Simon Goldschmidt
196 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
199 2011-06-26: Simon Goldschmidt
200 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
208 2011-03-27: Simon Goldschmidt
209 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
210 calculate it in tcp_zero_window_probe (the only place where it was used).
212 2010-11-21: Simon Goldschmidt
213 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
216 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
217 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
218 IP_MULTICAST_LOOP at socket- and raw-API level.
220 2010-06-16: Simon Goldschmidt
221 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
222 link-layer-addressed UDP traffic to be received while a netif is down (just
223 like DHCP during configuration)
225 2010-05-22: Simon Goldschmidt
226 * many many files: bug #27352: removed packing from ip_addr_t, the packed
227 version is now only used in protocol headers. Added global storage for
228 current src/dest IP address while in input functions.
230 2010-05-16: Simon Goldschmidt
231 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
232 calculation (and use them throughout the stack where applicable)
234 2010-05-16: Simon Goldschmidt
235 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
236 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
238 2010-05-16: Simon Goldschmidt
239 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
240 MEMP pool instead of the heap
242 2010-05-13: Simon Goldschmidt
243 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
244 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
245 packets to more than one pcb.
247 2010-05-02: Simon Goldschmidt
248 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
249 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
251 2010-04-30: Simon Goldschmidt
252 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
253 take a precalculated checksum, added pbuf_fill_chksum() to copy data
254 into a pbuf and at the same time calculating the checksum for that data
256 2010-04-29: Simon Goldschmidt
257 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
258 2-byte-aligned IP addresses and MAC addresses
260 2010-04-28: Patch by Bill Auerbach
261 * ip.c: Inline generating IP checksum to save a function call
263 2010-04-14: Simon Goldschmidt
264 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
265 tcpip_thread processes messages or timeouts to implement a watchdog.
267 2010-03-28: Simon Goldschmidt
268 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
269 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
271 2010-03-27: Simon Goldschmidt
272 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
273 etharp_query to prevent unnecessary function calls (inspired by
276 2010-03-20: Simon Goldschmidt
277 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
278 since the linker cannot do this automatically to save space.
280 2010-03-20: Simon Goldschmidt
281 * opt.h, etharp.c/.h: Added support for static ARP table entries
283 2010-03-14: Simon Goldschmidt
284 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
285 when creating TCP segments, not when (re-)transmitting them.
287 2010-03-07: Simon Goldschmidt
288 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
289 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
290 This should speed up receiving data on sockets as the select code in
291 event_callback is only executed when select is waiting.
293 2010-03-06: Simon Goldschmidt
294 * tcp_out.c: task #7013 (Create option to have all packets delivered to
295 netif->output in one piece): Always copy to try to create single pbufs
298 2010-03-06: Simon Goldschmidt
299 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
300 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
301 for tcp netconns to receive pbufs, not netbufs; use that function
304 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
305 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
306 Work on tcp_enqueue: Don't waste memory when chaining segments,
307 added option TCP_OVERSIZE to prevent creating many small pbufs when
308 calling tcp_write with many small blocks of data. Instead, pbufs are
309 allocated larger than needed and the space is used for later calls to
312 2010-02-21: Simon Goldschmidt
313 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
316 2010-02-21: Simon Goldschmidt
317 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
318 implementation of tcp to make API usage cleare to application programmers
320 2010-02-14: Simon Goldschmidt/Stephane Lesage
321 * ip_addr.h: Improved some defines working on ip addresses, added faster
322 macro to copy addresses that cannot be NULL
324 2010-02-13: Simon Goldschmidt
325 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
326 blocking send operation)
328 2010-02-12: Simon Goldschmidt
329 * sockets.c/.h: Added a minimal version of posix fctl() to have a
330 standardised way to set O_NONBLOCK for nonblocking sockets.
332 2010-02-12: Simon Goldschmidt
333 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
334 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
335 and dhcp work with user-allocated structs instead of callin mem_malloc
337 2010-02-12: Simon Goldschmidt/Jeff Barber
338 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
339 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
341 2010-02-12: Simon Goldschmidt
342 * sys layer: task #10139 (Prefer statically allocated memory): converted
343 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
344 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
345 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
346 to let sys.h use binary semaphores instead of mutexes - as before)
348 2010-02-09: Simon Goldschmidt (Simon Kallweit)
349 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
350 (Restart system timeout handling)
352 2010-02-09: Simon Goldschmidt
353 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
354 netif.c) - loopif does not have to be created by the port any more,
355 just define LWIP_HAVE_LOOPIF to 1.
357 2010-02-08: Simon Goldschmidt
358 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
359 inet_ntoa_r/ipaddr_ntoa_r
361 2010-02-08: Simon Goldschmidt
362 * netif.h: Added netif_s/get_igmp_mac_filter() macros
364 2010-02-05: Simon Goldschmidt
365 * netif.h: Added function-like macros to get/set the hostname on a netif
367 2010-02-04: Simon Goldschmidt
368 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
369 make changing the actual implementation behind the typedef easier.
371 2010-02-01: Simon Goldschmidt
372 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
373 for allocating memory when getaddrinfo() is called.
375 2010-01-31: Simon Goldschmidt
376 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
377 them once instead of parsing for every option. This also removes
378 the need for mem_malloc from dhcp_recv and makes it possible to
379 correctly retrieve the BOOTP file.
381 2010-01-30: simon Goldschmidt
382 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
385 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
386 * api.h, api_msg.c, sockets.c: Added except set support in select
389 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
390 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
391 Add non-blocking support for connect (partly from patch #6860),
392 plus many cleanups in socket & netconn API.
394 2010-01-27: Simon Goldschmidt
395 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
396 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
398 2010-01-26: Simon Goldschmidt
399 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
401 2010-01-14: Simon Goldschmidt
402 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
403 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
405 2010-01-13: Simon Goldschmidt
406 * mem.c: The heap now may be moved to user-defined memory by defining
407 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
408 (patch #6966 and bug #26133)
410 2010-01-10: Simon Goldschmidt (Bill Auerbach)
411 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
414 2010-01-10: Simon Goldschmidt
415 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
416 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
418 2009-12-31: Simon Goldschmidt
419 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
420 added timers.c/.h: Separated timer implementation from semaphore/mbox
421 implementation, moved timer implementation to timers.c/.h, timers are
422 now only called from tcpip_thread or by explicitly checking them.
425 2009-12-27: Simon Goldschmidt
426 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
427 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
432 2011-04-20: Simon Goldschmidt
433 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
435 2011-04-13: Simon Goldschmidt
436 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
437 using ports in the IANA private/dynamic range (49152 through 65535).
439 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
440 * etharp.h/.c: Fixed broken VLAN support.
442 2011-03-27: Simon Goldschmidt
443 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
444 pcbs) by checking if the pcb was bound (local_port != 0).
446 2011-03-27: Simon Goldschmidt
447 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
449 2011-03-27: Simon Goldschmidt
450 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
451 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
453 2011-03-27: Simon Goldschmidt
454 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
455 is present never times out) by starting retransmission timer before checking
458 2011-03-22: Simon Goldschmidt
459 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
460 calling sio_read_abort() if the file descriptor is valid.
462 2011-03-14: Simon Goldschmidt
463 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
464 more than once can render a socket useless) since it mainly involves changing
465 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
467 2011-03-13: Simon Goldschmidt
468 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
469 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
470 use EALRADY instead of -1
472 2011-03-13: Simon Goldschmidt
473 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
474 connection has been aborted by err_tcp (since this is not a normal closing
477 2011-03-13: Simon Goldschmidt
478 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
479 with pcb->state != CLOSED
481 2011-02-17: Simon Goldschmidt
482 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
485 2011-02-17: Simon Goldschmidt
486 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
488 2011-01-24: Simon Goldschmidt
489 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
491 2010-12-02: Simon Goldschmidt
492 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
494 2010-11-23: Simon Goldschmidt
495 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
496 LWIP_SO_RCVBUF and ioctl/FIONREAD.
498 2010-11-23: Simon Goldschmidt
499 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
500 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
502 2010-11-23: Simon Goldschmidt
503 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
504 refusing 'refused_data' again.
506 2010-11-22: Simon Goldschmidt
507 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
508 after a successful nonblocking connection.
510 2010-11-22: Simon Goldschmidt
511 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
512 must be sent link-local
514 2010-11-22: Simon Goldschmidt
515 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
518 2010-11-20: Simon Goldschmidt
519 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
521 2010-11-20: Simon Goldschmidt
522 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
523 resemble other stacks.
525 2010-11-20: Simon Goldschmidt
526 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
527 no-copy TCP writes will never succeed.
529 2010-11-20: Simon Goldschmidt
530 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
531 not match documentation: return ERR_ARG instead of ERR_VAL if not
532 initialized or wrong argument.
534 2010-10-20: Simon Goldschmidt
535 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
537 2010-10-05: Simon Goldschmidt
538 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
539 replugging the network cable after an AutoIP address was assigned.
541 2010-08-10: Simon Goldschmidt
542 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
544 2010-08-03: Simon Goldschmidt
545 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
547 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
548 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
549 endian architectures)
551 2010-07-28: Simon Goldschmidt
552 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
555 2010-07-27: Simon Goldschmidt
556 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
557 harm but never did anything
559 2010-07-21: Simon Goldschmidt
560 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
563 2010-07-16: Kieran Mansley
564 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
566 2010-07-10: Simon Goldschmidt
567 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
569 2010-06-30: Simon Goldschmidt
570 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
573 2010-06-28: Kieran Mansley
574 * timers.c remove unportable printing of C function pointers
576 2010-06-24: Simon Goldschmidt
577 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
578 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
580 2010-06-24: Simon Goldschmidt
581 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
582 implemented shutdown at socket level.
584 2010-06-21: Simon Goldschmidt
585 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
586 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
587 custom pbufs that reference other (original) pbufs. Additionally set
588 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
590 2010-06-15: Simon Goldschmidt
591 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
593 2010-06-14: Simon Goldschmidt
594 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
596 2010-06-12: Simon Goldschmidt
597 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
600 2010-05-17: Simon Goldschmidt
601 * netdb.c: Correctly NULL-terminate h_addr_list
603 2010-05-16: Simon Goldschmidt
604 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
605 "symbol already defined" i.e. when linking to winsock
607 2010-05-05: Simon Goldschmidt
608 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
611 2010-04-21: Simon Goldschmidt
612 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
615 2010-03-28: Luca Ceresoli
616 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
618 2010-03-27: Luca Ceresoli
619 * mib2.c: patch #7130: remove meaningless const qualifiers
621 2010-03-26: Simon Goldschmidt
622 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
624 2010-03-26: Simon Goldschmidt
625 * various files: Fixed compiling with different options disabled (TCP/UDP),
626 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
628 2010-03-25: Simon Goldschmidt
629 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
631 2010-03-25: Simon Goldschmidt
632 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
633 overrunning our rcv_wnd in ooseq case.
635 2010-03-22: Simon Goldschmidt
636 * tcp.c: tcp_listen() did not copy the pcb's prio.
638 2010-03-19: Simon Goldschmidt
639 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
641 2010-03-14: Simon Goldschmidt
642 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
643 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
644 and basing PBUF_LINK_HLEN on it.
646 2010-03-08: Simon Goldschmidt
647 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
648 when assiging routable address): when checking incoming packets and
649 aborting existing connection on address change, filter out link-local
652 2010-03-06: Simon Goldschmidt
653 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
655 2010-03-06: Simon Goldschmidt
656 * ipv4/ip.c: Don't try to forward link-local addresses
658 2010-03-06: Simon Goldschmidt
659 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
662 2010-03-05: Simon Goldschmidt
663 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
666 2010-03-05: Simon Goldschmidt
667 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
668 into multiple calls to tcp_write.
670 2010-02-21: Simon Goldschmidt
671 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
672 the implementation of DNS_USES_STATIC_BUF==1)
674 2010-02-20: Simon Goldschmidt
675 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
676 close() vs. shutdown(). Now the application does not get any more
677 recv callbacks after calling tcp_close(). Added tcp_shutdown().
679 2010-02-19: Simon Goldschmidt
680 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
681 confusion with realloc()
683 2010-02-15: Simon Goldschmidt/Stephane Lesage
684 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
687 2010-02-14: Simon Goldschmidt
688 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
689 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
690 admin-status of a netif are up
692 2010-02-14: Simon Goldschmidt
693 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
694 reception and is not really necessary
696 2010-02-14: Simon Goldschmidt
697 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
698 request was directed as us (RFC 826, Packet Reception), otherwise
699 only update existing entries; internalized some functions
701 2010-02-14: Simon Goldschmidt
702 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
703 disabled on netif used for PPPoE) by adding a new netif flag
704 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
705 device but prevents usage of ARP (so that ethernet_input can be used
708 2010-02-12: Simon Goldschmidt
709 * netif.c: netif_set_link_up/down: only do something if the link state
712 2010-02-12: Simon Goldschmidt/Stephane Lesage
713 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
716 2010-02-12: Simon Goldschmidt
717 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
719 2010-02-09: Simon Goldschmidt
720 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
721 (recv() makes receive window update for data that wasn't received by
724 2010-02-09: Simon Goldschmidt/Stephane Lesage
725 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
726 or any netconn_recv() error)
728 2010-02-09: Simon Goldschmidt
729 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
731 2010-02-09: Simon Goldschmidt
732 * netif.c: For loopback packets, adjust the stats- and snmp-counters
733 for the loopback netif.
735 2010-02-08: Simon Goldschmidt
736 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
737 since they are not used anywhere else.
739 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
740 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
741 (patch from bug #28798)
743 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
744 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
745 another bug when LWIP_RAND() returns zero.
747 2010-02-04: Simon Goldschmidt
748 * nearly every file: Use macros defined in ip_addr.h (some of them new)
749 to work with IP addresses (preparation for bug #27352 - Change ip_addr
750 from struct to typedef (u32_t) - and better code).
752 2010-01-31: Simon Goldschmidt
753 * netif.c: Don't call the link-callback from netif_set_up/down() since
754 this invalidly retriggers DHCP.
756 2010-01-29: Simon Goldschmidt
757 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
758 portability file inet.h and its contents from the stack: moved htonX-
759 functions to def.h (and the new def.c - they are not ipv4 dependent),
760 let inet.h depend on ip_addr.h and not the other way round.
761 This fixes bug #28732.
763 2010-01-28: Kieran Mansley
764 * tcp.c: Ensure ssthresh >= 2*MSS
766 2010-01-27: Simon Goldschmidt
767 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
768 callback can lead to accessing unallocated memory. As a consequence,
769 ERR_ABRT means the application has called tcp_abort()!
771 2010-01-25: Simon Goldschmidt
772 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
773 not implemented in SNMP): write-only or not-accessible are still
774 returned by getnext (though not by get)
776 2010-01-24: Simon Goldschmidt
777 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
778 not use reserved C/C++ keywords
780 2010-01-23: Simon Goldschmidt
781 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
784 2010-01-21: Simon Goldschmidt
785 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
786 if tcp_enqueue fails) both in raw- and netconn-API
788 2010-01-19: Simon Goldschmidt
789 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
791 2010-01-18: Iordan Neshev/Simon Goldschmidt
792 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
793 bugfix backports from 2.4.x.
795 2010-01-18: Simon Goldschmidt
796 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
798 2010-01-17: Simon Goldschmidt
799 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
800 task #10102: "netconn: clean up conn->err threading issues" by adding
801 error return value to struct api_msg_msg
803 2010-01-17: Simon Goldschmidt
804 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
805 to return err_t (bugs #27709 and #28087)
807 2010-01-14: Simon Goldschmidt
808 * ...: Use typedef for function prototypes throughout the stack.
810 2010-01-13: Simon Goldschmidt
811 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
812 window = 0) by correctly draining recvmbox/acceptmbox
814 2010-01-11: Simon Goldschmidt
815 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
816 erroneous callbacks) by copying the code from recent pppd
818 2010-01-10: Simon Goldschmidt
819 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
821 2010-01-10: Simon Goldschmidt
822 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
824 2010-01-08: Simon Goldschmidt
825 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
827 2010-01-08: Simon Goldschmidt
828 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
829 passed to dns_local_addhost() might be volatile
831 2010-01-07: Simon Goldschmidt
832 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
834 2010-01-06: Simon Goldschmidt
835 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
837 2009-12-31: Simon Goldschmidt
838 * many ppp files: Reorganised PPP source code from ucip structure to pppd
839 structure to easily compare our code against the pppd code (around v2.3.1)
841 2009-12-27: Simon Goldschmidt
842 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
850 2009-10-27 Simon Goldschmidt/Stephan Lesage
851 * netifapi.c/.h: Added netifapi_netif_set_addr()
853 2009-10-07 Simon Goldschmidt/Fabian Koch
854 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
855 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
857 2009-08-26 Simon Goldschmidt/Simon Kallweit
858 * slipif.c/.h: bug #26397: SLIP polling support
860 2009-08-25 Simon Goldschmidt
861 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
862 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
864 2009-08-25 Simon Goldschmidt
865 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
867 2009-08-24 Jakob Stoklund Olesen
868 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
869 to netif_set_link_up().
871 2009-08-23 Simon Goldschmidt
872 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
873 to a human-readable string.
877 2009-12-24: Kieran Mansley
878 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
881 2009-12-06: Simon Goldschmidt
882 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
883 be statically allocated (like in ucip)
885 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
886 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
888 2009-12-03: Simon Goldschmidt
889 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
890 could have non-zero length
892 2009-12-02: Simon Goldschmidt
893 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
894 tcp_input_pcb until after calling the pcb's callbacks
896 2009-11-29: Simon Goldschmidt
897 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
898 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
900 2009-11-29: Simon Goldschmidt
901 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
902 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
904 2009-11-26: Simon Goldschmidt
905 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
908 2009-11-26: Simon Goldschmidt
909 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
910 algorithm at PCB level
912 2009-11-22: Simon Goldschmidt
913 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
915 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
916 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
917 reusing time-wait pcb
919 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
920 * sockets.c: Fixed bug #28062: Data received directly after accepting
921 does not wake up select
923 2009-11-11: Simon Goldschmidt
924 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
926 2009-10-30: Simon Goldschmidt
927 * opt.h: Increased default value for TCP_MSS to 536, updated default
928 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
930 2009-10-28: Kieran Mansley
931 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
932 to follow algorithm from TCP/IP Illustrated
934 2009-10-27: Kieran Mansley
935 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
937 2009-10-25: Simon Goldschmidt
938 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
939 pcb->recv is NULL to keep rcv_wnd correct)
941 2009-10-25: Simon Goldschmidt
942 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
944 2009-10-23: Simon Goldschmidt (David Empson)
945 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
947 2009-10-21: Simon Goldschmidt
948 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
949 trailing 1 byte len (SYN/FIN)
951 2009-10-21: Simon Goldschmidt
952 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
954 2009-10-19: Simon Goldschmidt
955 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
956 conditional code to assert where applicable), check pbuf length before
957 testing for valid reply
959 2009-10-19: Simon Goldschmidt
960 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
961 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
963 2009-10-16: Simon Goldschmidt
964 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
965 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
968 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
969 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
971 2009-10-15: Simon Goldschmidt
972 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
975 2009-10-15: Simon Goldschmidt
976 * autoip.c: Fixed bug #27704: autoip starts with wrong address
977 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
978 of network byte order
980 2009-10-11 Simon Goldschmidt (Jörg Kesten)
981 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
982 which are not consecutive when retransmitting unacked segments
984 2009-10-09 Simon Goldschmidt
985 * opt.h: Fixed default values of some stats to only be enabled if used
986 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
988 2009-08-30 Simon Goldschmidt
989 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
990 function" by checking for loopback before calling ip_frag
992 2009-08-25 Simon Goldschmidt
993 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
995 2009-08-23 Simon Goldschmidt
996 * ppp.c: bug #27078: Possible memory leak in pppInit()
998 2009-08-23 Simon Goldschmidt
999 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1002 2009-08-23 Simon Goldschmidt
1003 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1004 Fixed wrong parenthesis, added check in init.c
1006 2009-08-23 Simon Goldschmidt
1007 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1009 2009-08-23 Simon Goldschmidt
1010 * many ppp files: bug #27267: Added include to string.h where needed
1012 2009-08-23 Simon Goldschmidt
1013 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1020 2009-05-10 Simon Goldschmidt
1021 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1022 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1023 one pbuf to help MACs that don't support scatter-gather DMA.
1025 2009-05-09 Simon Goldschmidt
1026 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1027 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1029 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1030 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1031 extended info about the currently received packet.
1033 2009-04-27 Simon Goldschmidt
1034 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1036 2009-04-25 Simon Goldschmidt
1037 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1038 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1040 2009-04-21 Simon Goldschmidt
1041 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1042 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1043 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1044 as an external function for lookup.
1046 2009-04-15 Simon Goldschmidt
1047 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1049 2009-03-31 Kieran Mansley
1050 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1051 TCP timestamp options, off by default. Rework tcp_enqueue() to
1052 take option flags rather than specified option data
1054 2009-02-18 Simon Goldschmidt
1055 * cc.h: Added printf formatter for size_t: SZT_F
1057 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1058 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1061 2009-02-12 Simon Goldschmidt
1062 * init.h: Added LWIP_VERSION to get the current version of the stack
1064 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1065 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1066 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1069 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1070 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1071 is only used by UDPLITE at present, so conditionalise it.
1073 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1074 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1075 "seed" address. This should reduce AUTOIP conflicts if
1076 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1078 2008-10-02 Jonathan Larmour and Rishi Khan
1079 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1082 2008-06-30 Simon Goldschmidt
1083 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1084 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1085 mem_free to run between mem_malloc iterations. Added illegal counter for
1088 2008-06-27 Simon Goldschmidt
1089 * stats.h/.c, some other files: patch #6483: stats module improvement:
1090 Added defines to display each module's statistic individually, added stats
1091 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1093 2008-06-17 Simon Goldschmidt
1094 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1095 (define LWIP_ERR_T in cc.h)
1097 2008-06-17 Simon Goldschmidt
1098 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1101 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1102 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1103 modified version of patch # 6370: Moved loopif code to netif.c so that
1104 loopback traffic is supported on all netifs (all local IPs).
1105 Added option to limit loopback packets for each netifs.
1109 2009-08-12 Kieran Mansley
1110 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1111 out of window or out of order properly
1113 2009-08-12 Kieran Mansley
1114 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1116 2009-07-28 Simon Goldschmidt
1117 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1119 2009-07-27 Kieran Mansley
1120 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1122 2009-07-09 Kieran Mansley
1123 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1124 recv_avail and don't increment counters until message successfully
1127 2009-06-25 Kieran Mansley
1128 * api_msg.c api.h: BUG26722: initialise netconn write variables
1131 2009-06-25 Kieran Mansley
1132 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1134 2009-06-25 Kieran Mansley
1135 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1136 simultaneous close behaviour, and make snd_nxt have the same meaning
1139 2009-05-12 Simon Goldschmidt
1140 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1141 arp_table / uses etharp_query" by adding etharp_gratuitous()
1143 2009-05-12 Simon Goldschmidt
1144 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1145 to the IP header (used by igmp_ip_output_if)
1147 2009-05-06 Simon Goldschmidt
1148 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1149 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1151 2009-05-05 Simon Goldschmidt
1152 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1155 2009-05-04 Simon Goldschmidt
1156 * init.c: snmp was not initialized in lwip_init()
1158 2009-05-04 Frédéric Bernon
1159 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1161 2009-05-03 Simon Goldschmidt
1162 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1163 (and unsent->next == NULL)
1165 2009-05-02 Simon Goldschmidt
1166 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1167 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1169 2009-05-02 Simon Goldschmidt
1170 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1172 2009-05-01 Simon Goldschmidt
1173 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1175 2009-05-01 Simon Goldschmidt
1176 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1178 2009-04-29 Frédéric Bernon
1179 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1180 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1181 of broadcast packets even when this option wasn't set. Port maintainers
1182 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1183 If you want this option also filter broadcast on recv operations, you also
1184 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1186 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1187 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1188 DHCP/AUTOIP cooperation
1190 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1191 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1192 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1193 right place in tcp_output and tcp_rexmit).
1195 2009-04-25 Simon Goldschmidt
1196 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1197 when debugging": memp_sizes contained the wrong sizes (including sanity
1198 regions); memp pools for MEM_USE_POOLS were too small
1200 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1201 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1202 behavior, with with ip address string not ended by a '\0', a space or a
1205 2009-04-19 Simon Goldschmidt
1206 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1207 pcb->err is called, not pcb->connected (with an error code).
1209 2009-04-19 Simon Goldschmidt
1210 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1211 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1213 2009-04-19 Simon Goldschmidt
1214 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1215 in the header pbuf, not the data pbuf)
1217 2009-04-18 Simon Goldschmidt
1218 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1220 2009-04-15 Simon Goldschmidt
1221 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1223 2009-04-15 Simon Goldschmidt
1224 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1226 2009-04-15 Simon Goldschmidt
1227 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1228 ip_hinted_output() (for smaller code mainly)
1230 2009-04-15 Simon Goldschmidt
1231 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1233 2009-04-15 Simon Goldschmidt
1234 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1235 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1236 is big enough in dhcp_start
1238 2009-04-15 Simon Goldschmidt
1239 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1241 2009-04-15 Simon Goldschmidt
1242 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1244 2009-04-15 Simon Goldschmidt
1245 * sockets.c: bug #26121: set_errno can be overridden
1247 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1248 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1251 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1252 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1255 2009-03-31 Kieran Mansley
1256 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1257 updates are calculated and sent (BUG20515)
1259 * tcp_in.c: cope with SYN packets received during established states,
1260 and retransmission of initial SYN.
1262 * tcp_out.c: set push bit correctly when tcp segments are merged
1264 2009-03-27 Kieran Mansley
1265 * tcp_out.c set window correctly on probes (correcting change made
1268 2009-03-26 Kieran Mansley
1269 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1270 connections where no reset required (bug #25622)
1272 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1275 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1276 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1277 too small depending on MEM_ALIGNMENT
1279 2009-02-16 Simon Goldschmidt
1280 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1281 converted size argument of netconn_write to 'size_t'
1283 2009-02-16 Simon Goldschmidt
1284 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1285 by moving accept callback function pointer to TCP_PCB_COMMON
1287 2009-02-12 Simon Goldschmidt
1288 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1291 2009-02-11 Simon Goldschmidt
1292 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1294 2009-02-11 Simon Goldschmidt
1295 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1296 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1298 2009-02-10 Simon Goldschmidt
1299 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1300 Accepts_pending is decrease on a corresponding listen pcb when a connection
1301 in state SYN_RCVD is close.
1303 2009-01-28 Jonathan Larmour
1304 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1307 2008-12-19 Simon Goldschmidt
1308 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1310 2008-12-10 Tamas Somogyi, Frédéric Bernon
1311 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1312 port uses deleted netbuf.
1314 2008-10-18 Simon Goldschmidt
1315 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1318 2008-10-15 Simon Goldschmidt
1319 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1320 by packing the struct ip_reass_helper.
1322 2008-10-03 David Woodhouse, Jonathan Larmour
1323 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1325 2008-10-02 Jonathan Larmour
1326 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1327 padding is included.
1329 2008-09-30 Jonathan Larmour
1330 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1331 assertion check that addrlen isn't NULL.
1333 2008-09-30 Jonathan Larmour
1334 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1336 2008-08-26 Simon Goldschmidt
1337 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1338 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1340 2008-08-14 Simon Goldschmidt
1341 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1342 tcp_close returns != ERR_OK)
1344 2008-07-08 Frédéric Bernon
1345 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1346 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1348 2008-06-24 Jonathan Larmour
1349 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1350 if tcp_seg_copy fails.
1352 2008-06-17 Simon Goldschmidt
1353 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1354 and created defines for swapping bytes and folding u32 to u16.
1356 2008-05-30 Kieran Mansley
1357 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1358 rather than rcv_ann_wnd when deciding if packets are in-window.
1359 Contributed by <arasmussen@consultant.datasys.swri.edu>
1361 2008-05-30 Kieran Mansley
1362 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1363 passing as function pointers when MEM_LIBC_MALLOC is defined.
1365 2008-05-09 Jonathan Larmour
1366 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1367 stop it being treated as a fatal error.
1369 2008-04-15 Simon Goldschmidt
1370 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1373 2008-03-27 Simon Goldschmidt
1374 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1375 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1376 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1377 or heap memory from interrupt context
1379 2008-03-26 Simon Goldschmidt
1380 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1381 host sent a zero mss as TCP option.
1388 2008-03-10 Jonathan Larmour
1389 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1390 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1392 2008-01-22 Frédéric Bernon
1393 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1394 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1396 2008-01-14 Frédéric Bernon
1397 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1398 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1399 tcp_recv callback (see rawapi.txt).
1401 2008-01-14 Frédéric Bernon, Marc Chaland
1402 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1404 2008-01-12 Frédéric Bernon
1405 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1406 netconn::sem per netconn::op_completed like suggested for the task #7490
1407 "Add return value to sys_mbox_post".
1409 2008-01-12 Frédéric Bernon
1410 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1411 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1412 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1414 2008-01-10 Frédéric Bernon
1415 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1416 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1417 "blocking" ("block" parameter = 1).
1419 2008-01-10 Frédéric Bernon
1420 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1421 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1422 "Add return value to sys_mbox_post".
1424 2008-01-05 Frédéric Bernon
1425 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1426 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1427 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1428 indicate the number of pointers query by the mailbox. There is three defines
1429 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1430 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1431 parameter in your implementation, but to ignore it to keep the previous behavior.
1432 The new sys_mbox_trypost function return a value to know if the mailbox is
1433 full or if the message is posted. Take a look to sys_arch.txt for more details.
1434 This new function is used in tcpip_input (so, can be called in an interrupt
1435 context since the function is not blocking), and in recv_udp and recv_raw.
1437 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1438 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1439 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1440 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1441 documentation in the rawapi.txt file.
1443 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1444 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1446 2007-12-31 Frédéric Bernon, Luca Ceresoli
1447 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1448 in autoip". The change in etharp_raw could be removed, since all calls to
1449 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1450 wrong in the future.
1452 2007-12-30 Frédéric Bernon, Tom Evans
1453 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1454 Filtering" reported by Tom Evans.
1456 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1457 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1458 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1459 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1460 keep accepting new connections.
1462 2007-12-13 Frédéric Bernon
1463 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1464 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1466 2007-12-12 Frédéric Bernon
1467 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1468 are the one which have ram usage.
1470 2007-12-05 Frédéric Bernon
1471 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1472 set of variables (=0) or a local one (=1). In this last case, your port should
1473 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1474 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1476 2007-12-03 Simon Goldschmidt
1477 * ip.c: ip_input: check if a packet is for inp first before checking all other
1478 netifs on netif_list (speeds up packet receiving in most cases)
1480 2007-11-30 Simon Goldschmidt
1481 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1482 UDP: move a (connected) pcb selected for input to the front of the list of
1483 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1486 2007-11-28 Simon Goldschmidt
1487 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1489 2007-11-25 Simon Goldschmidt
1490 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1493 2007-11-24 Simon Goldschmidt
1494 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1495 to the new file netdb.c; included lwip_getaddrinfo.
1497 2007-11-21 Simon Goldschmidt
1498 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1499 based on the MTU of the netif used to send. Enabled by default. Disable by
1500 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1502 2007-11-19 Frédéric Bernon
1503 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1504 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1505 copy dns payload to parse the response), return an error if there is no place
1506 for a new query, and fix some minor problems.
1508 2007-11-16 Simon Goldschmidt
1509 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1510 removed files: core/inet.c, core/inet6.c
1511 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1512 inet and chksum part; changed includes in all lwIP files as appropriate
1514 2007-11-16 Simon Goldschmidt
1515 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1516 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1517 (gethostbyname/gethostbyname_r).
1519 2007-11-15 Jim Pettinato, Frédéric Bernon
1520 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1521 requests with RAW api interface. Initialization is done in lwip_init() with
1522 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1523 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1524 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1525 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1526 list with points to improve.
1528 2007-11-06 Simon Goldschmidt
1529 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1530 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1531 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1533 2007-11-06 Simon Goldschmidt
1534 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1535 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1536 implementation from netconn api applications.
1538 2007-11-03 Frédéric Bernon
1539 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1540 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1541 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1542 it. This is a first release which have to be improve for TCP. Note it used the
1543 netconn::recv_avail which need to be more "thread-safe" (note there is already
1544 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1546 2007-11-01 Frédéric Bernon, Marc Chaland
1547 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1548 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1549 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1550 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1551 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1553 2007-10-24 Frédéric Bernon
1554 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1555 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1556 some code (like we have talk in "patch #5919 : Create compile switch to remove
1557 select code"), but it could be done later.
1559 2007-10-08 Simon Goldschmidt
1560 * many files: Changed initialization: many init functions are not needed any
1561 more since we now rely on the compiler initializing global and static
1564 2007-10-06 Simon Goldschmidt
1565 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1566 to enqueue the received pbufs so that multiple packets can be reassembled
1567 simultaneously and no static reassembly buffer is needed.
1569 2007-10-05 Simon Goldschmidt
1570 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1571 all netifs (or ports) can use it.
1573 2007-10-05 Frédéric Bernon
1574 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1575 common function to reduce a little bit the footprint (for all functions using
1576 only the "netif" parameter).
1578 2007-10-03 Frédéric Bernon
1579 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1580 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1581 a little bit the footprint (for all functions using only the "netif" parameter).
1583 2007-09-15 Frédéric Bernon
1584 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1585 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1586 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1587 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1589 2007-09-10 Frédéric Bernon
1590 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1591 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1592 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1593 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1594 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1595 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1596 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1597 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1598 when it's queried (any direct call to "sysuptime" is changed by a call to
1599 snmp_get_sysuptime).
1601 2007-09-09 Frédéric Bernon, Bill Florac
1602 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1603 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1604 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1605 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1606 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1607 the next query message to receive the matching multicast streams).
1609 2007-09-08 Frédéric Bernon
1610 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1611 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1612 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1613 Enable to access to these fields with LWIP_TCP=0.
1615 2007-09-05 Frédéric Bernon
1616 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1617 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1618 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1619 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1620 help to reduce footprint, and to reduce "visibility" on the Internet.
1622 2007-09-05 Frédéric Bernon, Bill Florac
1623 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1624 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1625 parameters have to be provided: a task name, and a task stack size. For this
1626 one, since it's platform dependant, you could define the best one for you in
1627 your lwipopts.h. For port maintainers, you can just add these new parameters
1628 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1631 2007-09-05 Frédéric Bernon
1632 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1633 inside init.c for task #7142 "Sanity check user-configurable values".
1635 2007-09-04 Frédéric Bernon, Bill Florac
1636 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1637 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1638 value). It will avoid potential fragmentation problems, use a counter to know
1639 how many times a group is used on an netif, and free it when all applications
1640 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1641 check if LWIP_IGMP!=0).
1643 2007-09-03 Frédéric Bernon
1644 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1645 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1646 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1647 and/or the "interface" field (for netconn layer), for join/leave operations.
1648 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1649 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1651 2007-08-30 Frédéric Bernon
1652 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1653 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1654 with other API (application based on raw API, or future "socket2" API). Ports
1655 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1657 2007-08-30 Frédéric Bernon, Jonathan Larmour
1658 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1659 user-configurable values".
1661 2007-08-29 Frédéric Bernon
1662 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1663 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1664 spirit than the others modules. Modify some IGMP debug traces.
1666 2007-08-29 Frédéric Bernon
1667 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1668 Add lwip_init function to regroup all modules initializations, and to provide
1669 a place to add code for task #7142 "Sanity check user-configurable values".
1670 Ports maintainers should remove direct initializations calls from their code,
1671 and add init.c in their makefiles. Note that lwip_init() function is called
1672 inside tcpip_init, but can also be used by raw api users since all calls are
1673 disabled when matching options are disabled. Also note that their is new options
1674 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1676 2007-08-26 Marc Boucher
1677 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1678 since they can under certain circumstances be called with an invalid conn
1679 pointer after the connection has been closed (and conn has been freed).
1681 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1682 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1683 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1685 2007-08-22 Frédéric Bernon
1686 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1687 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1689 2007-08-22 Frédéric Bernon
1690 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1691 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1692 name is tcpip_input (we keep the name of 1.2.0 function).
1694 2007-08-17 Jared Grubb
1695 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1696 settings into new memp_std.h and optional user file lwippools.h. This adds
1697 more dynamic mempools, and allows the user to create an arbitrary number of
1698 mempools for mem_malloc.
1700 2007-08-16 Marc Boucher
1701 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1702 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1703 close the connection.
1705 2007-08-16 Marc Boucher
1706 * sockets.c: lwip_accept(): check netconn_peer() error return.
1708 2007-08-16 Marc Boucher
1709 * mem.c, mem.h: Added mem_calloc().
1711 2007-08-16 Marc Boucher
1712 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1713 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1714 and starving other message types.
1715 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1717 2007-08-16 Marc Boucher
1718 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1719 type and flgs (later renamed to flags).
1720 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1721 Improved lwip_recvfrom(). TCP push now propagated.
1723 2007-08-16 Marc Boucher
1724 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1727 2007-08-16 Marc Boucher
1728 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1729 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1730 Added PPPoE support and various PPP improvements.
1732 2007-07-25 Simon Goldschmidt
1733 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1734 making netbuf_copy_partial use this function.
1736 2007-07-25 Simon Goldschmidt
1737 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1738 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1741 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1742 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1743 a link callback in the netif struct, and functions to handle it. Be carefull
1744 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1745 if you want to be sure to be compatible with future changes...
1747 2007-06-30 Frédéric Bernon
1748 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1750 2007-06-21 Simon Goldschmidt
1751 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1752 LWIP_AUTOIP =0 and =1 to remove redundant code.
1754 2007-06-21 Simon Goldschmidt
1755 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1756 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1757 heap. This both prevents memory fragmentation and gives a higher speed
1758 at the cost of more memory consumption. Turned off by default.
1760 2007-06-21 Simon Goldschmidt
1761 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1762 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1763 int to be able to send a bigger buffer than 64K with one time (mainly
1764 used from lwip_send).
1766 2007-06-21 Simon Goldschmidt
1767 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1768 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1770 2007-06-21 Simon Goldschmidt
1771 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1772 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1773 changes on low memory or empty send-buffer.
1775 2007-06-18 Simon Goldschmidt
1776 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1777 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1778 used for ethernet and struct eth_addr already had a defined length of 6).
1780 2007-06-17 Simon Goldschmidt
1781 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1782 to disable UDP checksum generation on transmit.
1784 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1785 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1786 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1787 this macro to check "conn" parameter in api_msg.c functions.
1789 2007-06-11 Simon Goldschmidt
1790 * sockets.c, sockets.h: Added UDP lite support for sockets
1792 2007-06-10 Simon Goldschmidt
1793 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1794 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1797 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1798 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1799 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1800 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1801 (see TODO mark in the source code).
1803 2007-06-09 Simon Goldschmidt
1804 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1805 etharp_output() to match netif->output so etharp_output() can be used
1806 directly as netif->output to save one function call.
1808 2007-06-08 Simon Goldschmidt
1809 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1810 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1811 added initialization of those to ethernetif, slipif and loopif.
1813 2007-05-18 Simon Goldschmidt
1814 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1815 (defaulting to off for now) that can be set to 0 to send fragmented
1816 packets by passing PBUF_REFs down the stack.
1818 2007-05-23 Frédéric Bernon
1819 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1820 connections, such present in patch #5959.
1822 2007-05-23 Frédéric Bernon
1823 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1824 code in only one part...
1826 2007-05-18 Simon Goldschmidt
1827 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1828 elements to overflow. This is achieved by adding some bytes before and after
1829 each pool element (increasing their size, of course), filling them with a
1830 prominent value and checking them on freeing the element.
1831 Set it to 2 to also check every element in every pool each time memp_malloc()
1832 or memp_free() is called (slower but more helpful).
1834 2007-05-10 Simon Goldschmidt
1835 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1836 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1839 2007-05-11 Frédéric Bernon
1840 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1841 Include a function pointer instead of a table index in the message to reduce
1842 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1843 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1845 2007-05-10 Simon Goldschmidt
1846 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1847 \ extern "C" {' in all header files. Now you can write your application using
1848 the lwIP stack in C++ and simply #include the core files. Note I have left
1849 out the netif/ppp/*h header files for now, since I don't know which files are
1850 included by applications and which are for internal use only.
1852 2007-05-09 Simon Goldschmidt
1853 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1854 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1855 situations where some compilers might inline the copy and save a function
1856 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1858 2007-05-08 Simon Goldschmidt
1859 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1860 to be overriden in case the C-library malloc implementation is not protected
1861 against concurrent access.
1863 2007-05-04 Simon Goldschmidt (Atte Kojo)
1864 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1865 multiple packets to the same host.
1867 2007-05-04 Frédéric Bernon, Jonathan Larmour
1868 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1869 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1870 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1871 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1872 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1873 these fields are now renamed "addr" & "port".
1875 2007-04-11 Jonathan Larmour
1876 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1877 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1878 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1879 by the port in sys_arch.h if desired.
1881 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1882 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1883 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1884 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1886 2007-04-05 Frédéric Bernon
1887 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1889 2007-04-04 Simon Goldschmidt
1890 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1891 use this for and architecture-independent form to tell the compiler you intentionally
1892 are not using this variable. Can be overriden in cc.h.
1894 2007-03-28 Frédéric Bernon
1895 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1896 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1897 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1898 It will be used by DHCP to register a client hostname, but can also be use when you call
1901 2007-03-28 Frédéric Bernon
1902 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1903 initialize a network interface's flag with. It tell this interface is an ethernet
1904 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1905 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1907 2007-03-26 Frédéric Bernon, Jonathan Larmour
1908 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1909 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1910 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1911 is done in tcpip_init function.
1913 2007-03-22 Frédéric Bernon
1914 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1915 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1916 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1917 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1918 but never used. Fix msg_in.c with the correct #if test for a stat display.
1920 2007-03-21 Kieran Mansley
1921 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1922 Provides callback on netif up/down state change.
1924 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1925 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1926 ip.c, netif.h, tcpip.c, opt.h:
1927 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1928 filter per all network interfaces. Declare a new function in netif to enable to
1929 control the MAC filter (to reduce lwIP traffic processing).
1931 2007-03-11 Frédéric Bernon
1932 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1933 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1934 unless you know what you're doing (default are RFC1122 compliant). Note
1935 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1937 2007-03-08 Frédéric Bernon
1938 * tcp.h: Keepalive values can be configured at compile time, but don't change
1939 this unless you know what you're doing (default are RFC1122 compliant).
1941 2007-03-08 Frédéric Bernon
1942 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1943 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1944 on UDP sockets/netconn.
1946 2007-03-08 Simon Goldschmidt
1947 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1949 2007-03-06 Frédéric Bernon
1950 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1951 Implement SO_RCVTIMEO on UDP sockets/netconn.
1953 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1954 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1955 on the stack and remove the API msg type from memp
1957 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1958 * sockets.h, sockets.c: Move socket initialization to new
1959 lwip_socket_init() function.
1960 NOTE: this changes the API with ports. Ports will have to be
1961 updated to call lwip_socket_init() now.
1963 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1964 * api_lib.c: Use memcpy in netbuf_copy_partial.
1969 2008-03-17 Frédéric Bernon, Ed Kerekes
1970 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1971 some problems to fill the IP header on some targets, use now the
1972 ip.h macros to do it).
1974 2008-03-13 Frédéric Bernon
1975 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1976 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1977 TCP connection caused a crash. Note that using (lwip_)recvfrom
1978 like this is a bit slow and that using (lwip)getpeername is the
1979 good lwip way to do it (so, using recv is faster on tcp sockets).
1981 2008-03-12 Frédéric Bernon, Jonathan Larmour
1982 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1983 recv_raw() does not consume data", and the ping sample (with
1984 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1985 returned the IP payload, without the IP header).
1987 2008-03-04 Jonathan Larmour
1988 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1989 and/or warnings on some systems where mem_size_t and size_t differ.
1990 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1992 2008-03-04 Kieran Mansley (contributions by others)
1993 * Numerous small compiler error/warning fixes from contributions to
1994 mailing list after 1.3.0 release candidate made.
1996 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1997 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1999 2008-01-15 Kieran Mansley
2000 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2001 prevented from sending by a small send window, not just a zero
2004 2008-01-09 Jonathan Larmour
2005 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2006 conflict with Linux system headers.
2008 2008-01-06 Jonathan Larmour
2009 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2010 address entirely on receiving a DHCPNAK, and restarting discovery.
2012 2007-12-21 Simon Goldschmidt
2013 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2014 is not protected" by using new macros for interlocked access to modify/test
2015 netconn->recv_avail.
2017 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2018 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2020 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2021 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2022 of silly window avoidance and prevent lwIP from shrinking the window)
2024 2007-12-04 Simon Goldschmidt
2025 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2026 data packet was lost): add assert that all segment lists are empty in
2027 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2028 state from LAST_ACK in tcp_process
2030 2007-12-02 Simon Goldschmidt
2031 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2032 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2033 has to be set to 0 in lwipopts.h
2035 2007-12-02 Simon Goldschmidt
2036 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2037 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2038 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2039 This is a fix for thread-safety and allocates all items needed for a netconn
2040 when the netconn is created.
2042 2007-11-30 Simon Goldschmidt
2043 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2044 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2045 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2046 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2048 2007-11-27 Simon Goldschmidt
2049 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2050 letting ip_route only use netifs that are up.
2052 2007-11-27 Simon Goldschmidt
2053 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2054 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2055 sockets block most operations once they have seen a fatal error.
2057 2007-11-27 Simon Goldschmidt
2058 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2059 netif to send as an argument (to be able to send on netifs that are down).
2061 2007-11-26 Simon Goldschmidt
2062 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2065 2007-11-21 Simon Goldschmidt
2066 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2067 Fixed the nagle algorithm; nagle now also works for all raw API applications
2068 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2070 2007-11-12 Frédéric Bernon
2071 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2072 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2073 context in do_getaddr.
2075 2007-11-10 Simon Goldschmidt
2076 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2077 happen any time). Now the packet simply isn't enqueued when out of memory.
2079 2007-11-01 Simon Goldschmidt
2080 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2081 TCP_MSS if that is smaller) as long as no MSS option is received from the
2084 2007-11-01 Simon Goldschmidt
2085 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2086 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2087 sending our configured TCP_MSS instead of the one received).
2089 2007-11-01 Simon Goldschmidt
2090 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2091 calculated based on the configured TCP_MSS, not on the MSS option received
2094 2007-10-09 Simon Goldschmidt
2095 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2096 short and also was generated wrong if checksum coverage != tot_len;
2097 receive: checksum was calculated wrong if checksum coverage != tot_len
2099 2007-10-08 Simon Goldschmidt
2100 * mem.c: lfree was not updated in mem_realloc!
2102 2007-10-07 Frédéric Bernon
2103 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2104 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2105 this change cause an API breakage for netconn_addr, since a parameter
2106 type change. Any compiler should cause an error without any changes in
2107 yours netconn_peer calls (so, it can't be a "silent change"). It also
2108 reduce a little bit the footprint for socket layer (lwip_getpeername &
2109 lwip_getsockname use now a common lwip_getaddrname function since
2110 netconn_peer & netconn_addr have the same parameters).
2112 2007-09-20 Simon Goldschmidt
2113 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2114 by checking tcp_tw_pcbs also
2116 2007-09-19 Simon Goldschmidt
2117 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2119 2007-09-15 Mike Kleshov
2120 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2122 2007-09-06 Frédéric Bernon
2123 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2124 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2125 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2126 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2128 2007-08-30 Frédéric Bernon
2129 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2130 and fix some coding style.
2132 2007-08-28 Frédéric Bernon
2133 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2134 kind of packets. These packets are considered like Ethernet packets (payload
2135 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2136 are considered like IP packets (payload pointing to iphdr).
2138 2007-08-27 Frédéric Bernon
2139 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2140 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2141 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2143 2007-08-24 Kieran Mansley
2144 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2145 compiler (Paradigm C++)
2147 2007-08-09 Frédéric Bernon, Bill Florac
2148 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2149 Introduce IGMP_STATS to centralize statistics management.
2151 2007-08-09 Frédéric Bernon, Bill Florac
2152 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2153 packet on a udp pcb binded on an netif's IP address, and not on "any".
2155 2007-08-09 Frédéric Bernon, Bill Florac
2156 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2157 This is mainly on using lookup/lookfor, and some coding styles...
2159 2007-07-26 Frédéric Bernon (and "thedoctor")
2160 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2162 2007-07-25 Simon Goldschmidt
2163 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2164 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2165 (tcp_output is called again later from tcp timers).
2167 2007-07-25 Simon Goldschmidt
2168 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2169 copy_from_pbuf, which illegally modified the given pbuf.
2171 2007-07-25 Simon Goldschmidt
2172 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2173 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2175 2007-07-24 Simon Goldschmidt
2176 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2177 correct state (must be CLOSED).
2179 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2180 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2181 allocation. It now returns NULL.
2183 2007-07-13 Frédéric Bernon
2184 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2187 2007-07-13 Frédéric Bernon
2188 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2189 because current code doesn't follow rawapi.txt documentation.
2191 2007-07-13 Kieran Mansley
2192 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2193 out of sequence processing of received packets
2195 2007-07-03 Simon Goldschmidt
2196 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2197 assumption is made that this pbuf is in one piece (i.e. not chained). These
2198 assumptions clash with the possibility of converting to fully pool-based
2199 pbuf implementations, where PBUF_RAM pbufs might be chained.
2201 2007-07-03 Simon Goldschmidt
2202 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2203 when closing tcp netconns: removed conn->sem, less context switches when
2204 closing, both netconn_close and netconn_delete should safely close tcp
2207 2007-07-02 Simon Goldschmidt
2208 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2209 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2210 to cache ARP table indices with each pcb instead of single-entry cache for
2213 2007-07-02 Simon Goldschmidt
2214 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2215 warnings when assigning to smaller types.
2217 2007-06-28 Simon Goldschmidt
2218 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2220 2007-06-28 Simon Goldschmidt
2221 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2222 a segment contained chained pbufs)
2224 2007-06-28 Frédéric Bernon
2225 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2226 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2227 possible to define this macro in your own lwipopts.h to always use C library's
2228 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2230 2007-06-28 Frédéric Bernon
2231 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2232 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2233 in api_lib/api_msg (use pointers and not type with table, etc...)
2235 2007-06-26 Simon Goldschmidt
2236 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2238 2007-06-25 Simon Goldschmidt
2239 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2240 for udp packets with no matching pcb.
2242 2007-06-25 Simon Goldschmidt
2243 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2244 could get udp input packets if the remote side matched.
2246 2007-06-13 Simon Goldschmidt
2247 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2248 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2250 2007-06-13 Simon Goldschmidt
2251 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2252 -> netconn_new_..() does not allocate a new connection for unsupported
2255 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2256 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2257 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2259 2007-06-13 Frédéric Bernon, Matthias Weisser
2260 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2261 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2262 some macro names collision with some OS macros.
2264 2007-06-11 Simon Goldschmidt
2265 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2266 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2267 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2270 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2271 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2272 where TCP flags wasn't initialized in tcp_keepalive.
2274 2007-06-03 Simon Goldschmidt
2275 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2276 registered, p->payload was modified without modifying p->len if sending
2277 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2279 2007-06-03 Simon Goldschmidt
2280 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2281 re-used the input pbuf even if that didn't have enough space to include the
2282 link headers. Now the space is tested and a new pbuf is allocated for the
2283 echo response packet if the echo request pbuf isn't big enough.
2285 2007-06-01 Simon Goldschmidt
2286 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2288 2007-05-23 Frédéric Bernon
2289 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2290 allocated by do_listen if success) and netconn_accept errors handling. In
2291 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2292 by ASSERT, except for netconn_delete.
2294 2007-05-23 Frédéric Bernon
2295 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2296 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2297 directly close the recvmbox).
2299 2007-05-22 Simon Goldschmidt
2300 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2301 bound but unconnected (and non-listening) tcp_pcbs.
2303 2007-05-22 Frédéric Bernon
2304 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2305 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2306 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2307 like "sys_timeout" in their application threads.
2309 2007-05-22 Frédéric Bernon
2310 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2311 which parameters are used by which do_xxx function, and to avoid "misusing"
2312 parameters (patch #5938).
2314 2007-05-22 Simon Goldschmidt
2315 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2316 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2317 is only 8 bits wide. This affects the api, as there, the protocol was
2320 2007-05-18 Simon Goldschmidt
2321 * memp.c: addition to patch #5913: smaller pointer was returned but
2322 memp_memory was the same size -> did not save memory.
2324 2007-05-16 Simon Goldschmidt
2325 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2328 2007-05-16 Simon Goldschmidt
2329 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2330 as the one of the netif used for sending to prevent sending from old
2331 addresses after a netif address gets changed (partly fixes bug #3168).
2333 2007-05-16 Frédéric Bernon
2334 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2335 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2336 tcpip_init) because we have to be sure that network interfaces are already
2337 added (mac filter is updated only in igmp_init for the moment).
2339 2007-05-16 Simon Goldschmidt
2340 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2341 into sys_arch_sem_wait calls to prevent timers from running while waiting
2342 for the heap. This fixes bug #19167.
2344 2007-05-13 Simon Goldschmidt
2345 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2346 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2349 2007-05-07 Simon Goldschmidt
2350 * mem.c: Another attempt to fix bug #17922.
2352 2007-05-04 Simon Goldschmidt
2353 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2354 implementation so that it can be reused (don't allocate the target
2355 pbuf inside pbuf_copy()).
2357 2007-05-04 Simon Goldschmidt
2358 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2359 to save a little RAM (next pointer of memp is not used while not in pool).
2362 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2365 2007-04-23 Simon Goldschmidt
2366 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2367 in NULL reference for incoming TCP packets". Loopif has to be configured
2368 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2369 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2370 putting packets on a list that is fed to the stack by calling loopif_poll()
2371 (single-thread / NO_SYS / polling environment where e.g.
2372 netif->input() = ip_input).
2374 2007-04-17 Jonathan Larmour
2375 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2376 the difference between two u16_t's.
2377 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2378 MEMP_NUM_NETCONN in sockets.c right now.
2380 2007-04-12 Jonathan Larmour
2381 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2383 2007-04-12 Kieran Mansley
2384 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2385 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2387 2007-04-11 Simon Goldschmidt
2388 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2389 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2390 pbuf.c: removed functions no needed any more (by etharp).
2392 2007-04-11 Kieran Mansley
2393 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2394 "Constant is long" warnings with 16bit compilers. Contributed by
2395 avatar@mmlab.cse.yzu.edu.tw
2397 2007-04-05 Frédéric Bernon, Jonathan Larmour
2398 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2399 the mailbox is active". Now, the post is only done during a connect, and do_send,
2400 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2402 2007-04-03 Frédéric Bernon
2403 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2404 packets. See patch #5834.
2406 2007-03-30 Frédéric Bernon
2407 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2408 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2410 2007-03-30 Frédéric Bernon
2411 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2412 others environment defines (these were too "generic").
2414 2007-03-28 Frédéric Bernon
2415 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2416 result and can cause a crash. lwip_send now check netbuf_ref result.
2418 2007-03-28 Simon Goldschmidt
2419 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2420 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2421 defined. This is the way it should have been already (looking at
2424 2007-03-28 Kieran Mansley
2425 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2426 IP and TCP headers *and* physical link headers
2428 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2429 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2430 to send some garbage. It is not a definitive solution, but the patch does solve
2431 the problem for most cases.
2433 2007-03-22 Frédéric Bernon
2434 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2436 2007-03-22 Frédéric Bernon
2437 * api_lib.c: somes resources couldn't be freed if there was errors during
2438 netconn_new_with_proto_and_callback.
2440 2007-03-22 Frédéric Bernon
2441 * ethernetif.c: update netif->input calls to check return value. In older ports,
2442 it's a good idea to upgrade them, even if before, there could be another problem
2443 (access to an uninitialized mailbox).
2445 2007-03-21 Simon Goldschmidt
2446 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2447 by casting to unsigned).
2449 2007-03-21 Frédéric Bernon
2450 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2451 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2452 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2453 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2454 faster and more reliable communication between api_lib and tcpip.
2456 2007-03-21 Frédéric Bernon
2457 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2459 2007-03-21 Frédéric Bernon
2460 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2462 2007-03-21 Kieran Mansley
2463 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2466 2007-03-21 Kieran Mansley
2467 * Fix all uses of pbuf_header to check the return value. In some
2468 cases just assert if it fails as I'm not sure how to fix them, but
2469 this is no worse than before when they would carry on regardless
2472 2007-03-21 Kieran Mansley
2473 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2474 comment out missing header include in icmp.c
2476 2007-03-20 Frédéric Bernon
2477 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2478 synchronized with memp.h.
2480 2007-03-20 Frédéric Bernon
2481 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2482 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2483 network interfaces. Also fix a compiler warning.
2485 2007-03-20 Kieran Mansley
2486 * udp.c: Only try and use pbuf_header() to make space for headers if
2487 not a ROM or REF pbuf.
2489 2007-03-19 Frédéric Bernon
2490 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2493 2007-03-19 Frédéric Bernon
2494 * Remove unimplemented "memp_realloc" function from memp.h.
2496 2007-03-11 Simon Goldschmidt
2497 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2500 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2501 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2502 (missing `const' qualifier in socket functions), to get more compatible to
2503 standard POSIX sockets.
2505 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2506 * sockets.c: Add asserts inside bind, connect and sendto to check input
2507 parameters. Remove excessive set_errno() calls after get_socket(), because
2508 errno is set inside of get_socket(). Move last sock_set_errno() inside
2511 2007-03-09 Simon Goldschmidt
2512 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2513 was allocated too small.
2515 2007-03-06 Simon Goldschmidt
2516 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2517 the stack from concurrent access.
2519 2007-03-06 Frédéric Bernon, Dmitry Potapov
2520 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2521 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2523 2007-03-06 Simon Goldschmidt
2524 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2525 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2527 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2528 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2529 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2530 Allow to do ARP processing for incoming packets inside tcpip_thread
2531 (protecting ARP layer against concurrent access). You can also disable
2532 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2533 Older ports have to use tcpip_ethinput.
2535 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2536 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2537 from pointer target type"
2539 2007-03-05 Frédéric Bernon
2540 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2541 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2543 2007-03-04 Frédéric Bernon
2544 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2547 2007-03-04 Frédéric Bernon
2548 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2550 The api_msg struct stay on the stack (not moved to netconn struct).
2552 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2553 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2554 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2555 Also fixed cast warning in pbuf_alloc()
2557 2007-03-04 Simon Goldschmidt
2558 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2559 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2561 2007-03-03 Frédéric Bernon
2562 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2563 It is static, and never used in udp.c except udp_init().
2565 2007-03-02 Simon Goldschmidt
2566 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2567 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2568 initialized before tcpip_thread is running (e.g. before OS is started)
2570 2007-03-02 Frédéric Bernon
2571 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2574 2007-02-28 Kieran Mansley
2575 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2576 outside the region of the pbuf by pbuf_header()
2578 2007-02-28 Kieran Mansley
2579 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2580 when supplied timeout is also non-zero
2584 2006-12-05 Leon Woestenberg
2585 * CHANGELOG: Mention STABLE-1.2.0 release.
2589 2006-12-01 Christiaan Simons
2590 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2591 Note this is a workaround. Currently I have no other options left.
2593 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2594 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2595 to include/lwip/opt.h.
2596 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2597 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2598 * opt.h: Add above new options.
2600 2006-08-18 Christiaan Simons
2601 * tcp_{in,out}.c: added SNMP counters.
2602 * ipv4/ip.c: added SNMP counters.
2603 * ipv4/ip_frag.c: added SNMP counters.
2605 2006-08-08 Christiaan Simons
2606 * etharp.{c,h}: added etharp_find_addr() to read
2607 (stable) ethernet/IP address pair from ARP table
2609 2006-07-14 Christiaan Simons
2610 * mib_structs.c: added
2611 * include/lwip/snmp_structs.h: added
2612 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2614 2006-07-06 Christiaan Simons
2615 * snmp/asn1_{enc,dec}.c added
2617 * snmp/msg_{in,out}.c added
2618 * include/lwip/snmp_asn1.h added
2619 * include/lwip/snmp_msg.h added
2620 * doc/snmp_agent.txt added
2622 2006-03-29 Christiaan Simons
2623 * inet.c, inet.h: Added platform byteswap support.
2624 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2625 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2629 2006-11-30 Christiaan Simons
2630 * dhcp.c: Fixed false triggers of request_timeout.
2632 2006-11-28 Christiaan Simons
2633 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2635 2006-10-11 Christiaan Simons
2636 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2637 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2638 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2639 identifier from 170 to 136 (bug #17574).
2641 2006-10-10 Christiaan Simons
2642 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2644 2006-08-17 Christiaan Simons
2645 * udp.c: Fixed bug #17200, added check for broadcast
2646 destinations for PCBs bound to a unicast address.
2648 2006-08-07 Christiaan Simons
2649 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2651 2006-06-27 Christiaan Simons
2652 * api_msg.c: Applied patch for cold case (bug #11135).
2653 In accept_function() ensure newconn->callback is always initialized.
2655 2006-06-15 Christiaan Simons
2656 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2657 facilitate printing of mem_size_t and u16_t statistics.
2659 2006-06-14 Christiaan Simons
2660 * api_msg.c: Applied patch #5146 to handle allocation failures
2661 in accept() by Kevin Lawson.
2663 2006-05-26 Christiaan Simons
2664 * api_lib.c: Removed conn->sem creation and destruction
2665 from netconn_write() and added sys_sem_new to netconn_new_*.
2669 2006-03-03 Christiaan Simons
2670 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2671 access and added pbuf_alloc() return value checks.
2673 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2674 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2675 now handled by the checksum routine properly.
2677 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2678 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2679 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2681 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2682 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2683 submitted by Mitrani Hiroshi.
2685 2005-12-15 Christiaan Simons
2686 * inet.c: Disabled the added summing routine to preserve code space.
2688 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2689 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2690 Added Curt McDowell's optimized checksumming routine for future
2691 inclusion. Need to create test case for unaliged, aligned, odd,
2692 even length combination of cases on various endianess machines.
2694 2005-12-09 Christiaan Simons
2695 * inet.c: Rewrote standard checksum routine in proper portable C.
2697 2005-11-25 Christiaan Simons
2698 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2699 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2700 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2702 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2703 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2704 routine by Peter Jolasson.
2705 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2707 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2708 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2709 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2711 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2712 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2714 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2715 * udp.c: UDP pcb->recv() was called even when it was NULL.
2719 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2720 * etharp.*: Disabled multiple packets on the ARP queue.
2721 This clashes with TCP queueing.
2723 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2724 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2725 Halved the ARP period, doubled the period counts.
2726 ETHARP_MAX_PENDING now should be at least 2. This prevents
2727 the counter from reaching 0 right away (which would allow
2728 too little time for ARP responses to be received).
2730 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2731 * dhcp.c: Decline messages were not multicast but unicast.
2732 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2733 Do not try hard to insert arbitrary packet's source address,
2734 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2735 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2736 querying an address will see it appear in the cache (DHCP could
2737 suffer from this when a server invalidly gave an in-use address.)
2738 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2739 comparing network addresses (identifiers), not the network masks
2741 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2742 IP address actually belongs to the network of the given interface.
2744 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2745 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2749 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2750 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2751 even if one is already pending, if the rcv_wnd is above a threshold
2752 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2753 delayed ACK in order to open the window if the stack is only receiving data.
2755 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2756 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2758 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2759 * etharp.c: Make sure the first pbuf queued on an ARP entry
2760 is properly ref counted.
2762 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2763 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2764 warnings about comparison.
2765 * pbuf.c: Stopped compiler complaining of empty if statement
2766 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2767 * tcp.c: Stopped compiler complaining of empty if statement
2768 when LWIP_DEBUGF() empty.
2769 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2770 * inet.c: Added a couple of casts to quiet the compiler.
2771 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2773 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2774 * inet.c: Made data types consistent in inet_ntoa().
2775 Added casts for return values of checksum routines, to pacify compiler.
2776 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2777 Small corrections to some debugging statements, to pacify compiler.
2779 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2780 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2781 * ethernetif.c Updated low_level_output() to match prototype for
2782 netif->linkoutput and changed low_level_input() similarly for consistency.
2783 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2784 of raw_recv() in raw.h and so avoid compiler error.
2785 * sockets.c: Added trivial (int) cast to keep compiler happier.
2786 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2792 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2793 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2794 your cc.h file defines this either 1 or 0. If non-defined,
2796 * .c: Added <string.h> and <errno.h> includes where used.
2797 * etharp.c: Made some array indices unsigned.
2799 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2800 * netif.*: Added netif_set_up()/down().
2801 * dhcp.c: Changes to restart program flow.
2803 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2804 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2805 single-pass lookup for different candidates. Should exploit locality.
2807 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2808 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2809 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2810 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2811 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2815 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2816 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2817 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2818 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2819 is to prefix the 14-bit Ethernet headers with two padding bytes.
2821 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2822 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2823 * etharp.c: Fixed the case where the packet that initiates the ARP request
2824 is not queued, and gets lost. Fixed the case where the packets destination
2825 address is already known; we now always queue the packet and perform an ARP
2832 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2833 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2834 * Fixed two possible NULL references in rare cases.
2840 * Fixed DHCP which did not include the IP address in DECLINE messages.
2844 * etharp.c has been hauled over a bit.
2850 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2851 * Packets sent from ARP queue had invalid source hardware address.
2855 * Pass-by ARP requests do now update the cache.
2859 * No longer dependent on ctype.h.
2860 * New socket options.
2861 * Raw IP pcb support.
2867 * Some debug formatters and casts fixed.
2868 * Numereous fixes in PPP.
2872 * DEBUGF now is LWIP_DEBUGF
2873 * pbuf_dechain() has been re-enabled.
2874 * Mentioned the changed use of CVS branches in README.
2880 * Fixed pool pbuf memory leak in pbuf_alloc().
2881 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2882 Reported by Savin Zlobec.
2884 * PBUF_POOL chains had their tot_len field not set for non-first
2885 pbufs. Fixed in pbuf_alloc().
2889 * Added PPP stack contributed by Marc Boucher
2893 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2895 * ARP queueuing now queues the latest packet instead of the first.
2896 This is the RFC recommended behaviour, but can be overridden in
2903 * TCP has been fixed to deal with the new use of the pbuf->ref
2906 * DHCP dhcp_inform() crash bug fixed.
2910 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2911 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2912 Implemented by David Haas.
2918 * The packet buffer implementation has been enhanced to support
2919 zero-copy and copy-on-demand for packet buffers which have their
2920 payloads in application-managed memory.
2921 Implemented by David Haas.
2923 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2924 if an outgoing packet can be directly sent on the link, or perform
2925 a copy-on-demand when necessary.
2927 The application can safely assume the packet is sent, and the RAM
2928 is available to the application directly after calling udp_send()
2929 or similar function.
2933 * ARP_QUEUEING should now correctly work for all cases, including
2935 Implemented by Leon Woestenberg.
2939 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2940 to a '0.0.0.0' IP address.
2942 * The packet buffer implementation is changed. The pbuf->ref counter
2943 meaning has changed, and several pbuf functions have been
2944 adapted accordingly.
2946 * netif drivers have to be changed to set the hardware address length field
2947 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2948 See the contrib/ports/c16x cs8900 driver as a driver example.
2950 * netif's have a dhcp field that must be initialized to NULL by the driver.
2951 See the contrib/ports/c16x cs8900 driver as a driver example.
2953 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2954 logged in CVS but have not been explained here.
2956 (0.5.3) Changes since version 0.5.2
2960 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2961 threads because it wasn't protected by semaphores.
2965 * struct ip_addr now packed.
2967 * The name of the time variable in arp.c has been changed to ctime
2968 to avoid conflicts with the time() function.
2970 (0.5.2) Changes since version 0.5.1
2974 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2978 * A bug in tcp_parseopt() could cause the stack to hang because of a
2979 malformed TCP option.
2981 * The address of new connections in the accept() function in the BSD
2982 socket library was not handled correctly.
2984 * pbuf_dechain() did not update the ->tot_len field of the tail.
2986 * Aborted TCP connections were not handled correctly in all
2991 * All protocol header structs are now packed.
2993 * The ->len field in the tcp_seg structure now counts the actual
2994 amount of data, and does not add one for SYN and FIN segments.
2996 (0.5.1) Changes since version 0.5.0
3000 * Possible to run as a user process under Linux.
3002 * Preliminary support for cross platform packed structs.
3004 * ARP timer now implemented.
3008 * TCP output queue length was badly initialized when opening
3011 * TCP delayed ACKs were not sent correctly.
3013 * Explicit initialization of BSS segment variables.
3015 * read() in BSD socket library could drop data.
3017 * Problems with memory alignment.
3019 * Situations when all TCP buffers were used could lead to
3022 * TCP MSS option wasn't parsed correctly.
3024 * Problems with UDP checksum calculation.
3026 * IP multicast address tests had endianess problems.
3028 * ARP requests had wrong destination hardware address.
3032 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3034 * A ->linkoutput() member was added to struct netif.
3036 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3038 * ntoh* macros are now null definitions for big endian CPUs.
3040 (0.5.0) Changes since version 0.4.2
3044 * Redesigned operating system emulation layer to make porting easier.
3046 * Better control over TCP output buffers.
3048 * Documenation added.
3052 * Locking issues in buffer management.
3054 * Bugfixes in the sequential API.
3056 * IP forwarding could cause memory leakage. This has been fixed.
3060 * Directory structure somewhat changed; the core/ tree has been
3063 (0.4.2) Changes since version 0.4.1
3067 * Experimental ARP implementation added.
3069 * Skeleton Ethernet driver added.
3071 * Experimental BSD socket API library added.
3075 * In very intense situations, memory leakage could occur. This has
3080 * Variables named "data" and "code" have been renamed in order to
3081 avoid name conflicts in certain compilers.
3083 * Variable++ have in appliciable cases been translated to ++variable
3084 since some compilers generate better code in the latter case.
3086 (0.4.1) Changes since version 0.4
3090 * TCP: Connection attempts time out earlier than data
3091 transmissions. Nagle algorithm implemented. Push flag set on the
3092 last segment in a burst.
3094 * UDP: experimental support for UDP-Lite extensions.
3098 * TCP: out of order segments were in some cases handled incorrectly,
3099 and this has now been fixed. Delayed acknowledgements was broken
3100 in 0.4, has now been fixed. Binding to an address that is in use
3101 now results in an error. Reset connections sometimes hung an
3102 application; this has been fixed.
3104 * Checksum calculation sometimes failed for chained pbufs with odd
3105 lengths. This has been fixed.
3107 * API: a lot of bug fixes in the API. The UDP API has been improved
3108 and tested. Error reporting and handling has been
3109 improved. Logical flaws and race conditions for incoming TCP
3110 connections has been found and removed.
3112 * Memory manager: alignment issues. Reallocating memory sometimes
3113 failed, this has been fixed.
3115 * Generic library: bcopy was flawed and has been fixed.
3119 * API: all datatypes has been changed from generic ones such as
3120 ints, to specified ones such as u16_t. Functions that return
3121 errors now have the correct type (err_t).
3123 * General: A lot of code cleaned up and debugging code removed. Many
3124 portability issues have been fixed.
3126 * The license was changed; the advertising clause was removed.
3130 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3131 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3134 (0.4) Changes since version 0.3.1
3136 * Memory management has been radically changed; instead of
3137 allocating memory from a shared heap, memory for objects that are
3138 rapidly allocated and deallocated is now kept in pools. Allocation
3139 and deallocation from those memory pools is very fast. The shared
3140 heap is still present but is used less frequently.
3142 * The memory, memory pool, and packet buffer subsystems now support
3143 4-, 2-, or 1-byte alignment.
3145 * "Out of memory" situations are handled in a more robust way.
3147 * Stack usage has been reduced.
3149 * Easier configuration of lwIP parameters such as memory usage,
3150 TTLs, statistics gathering, etc. All configuration parameters are
3151 now kept in a single header file "lwipopts.h".
3153 * The directory structure has been changed slightly so that all
3154 architecture specific files are kept under the src/arch
3157 * Error propagation has been improved, both in the protocol modules
3160 * The code for the RTXC architecture has been implemented, tested
3163 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3164 the Internet checksum modules.
3166 * Bugs related to porting between a 32-bit and a 16-bit architecture
3167 have been found and corrected.
3169 * The license has been changed slightly to conform more with the
3170 original BSD license, including the advertisement clause.
3172 (0.3.1) Changes since version 0.3
3174 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3175 RAM never returned the RAM when the pbuf was deallocated.
3177 * TCP congestion control, window updates and retransmissions did not
3178 work correctly. This has now been fixed.
3180 * Bugfixes in the API.
3182 (0.3) Changes since version 0.2
3184 * New and improved directory structure. All include files are now
3185 kept in a dedicated include/ directory.
3187 * The API now has proper error handling. A new function,
3188 netconn_err(), now returns an error code for the connection in
3191 * Improvements in the memory management subsystem. The system now
3192 keeps a pointer to the lowest free memory block. A new function,
3193 mem_malloc2() tries to allocate memory once, and if it fails tries
3194 to free some memory and retry the allocation.
3196 * Much testing has been done with limited memory
3197 configurations. lwIP now does a better job when overloaded.
3199 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3201 * Many bugfixes in the TCP code:
3203 - Fixed a bug in tcp_close().
3205 - The TCP receive window was incorrectly closed when out of
3206 sequence segments was received. This has been fixed.
3208 - Connections are now timed-out of the FIN-WAIT-2 state.
3210 - The initial congestion window could in some cases be too
3211 large. This has been fixed.
3213 - The retransmission queue could in some cases be screwed up. This
3216 - TCP RST flag now handled correctly.
3218 - Out of sequence data was in some cases never delivered to the
3219 application. This has been fixed.
3221 - Retransmitted segments now contain the correct acknowledgment
3222 number and advertised window.
3224 - TCP retransmission timeout backoffs are not correctly computed
3225 (ala BSD). After a number of retransmissions, TCP now gives up
3228 * TCP connections now are kept on three lists, one for active
3229 connections, one for listening connections, and one for
3230 connections that are in TIME-WAIT. This greatly speeds up the fast
3231 timeout processing for sending delayed ACKs.
3233 * TCP now provides proper feedback to the application when a
3234 connection has been successfully set up.
3236 * More comments have been added to the code. The code has also been
3237 somewhat cleaned up.
3239 (0.2) Initial public release.