5 * [Enter new changes just after this line - do not remove this line]
9 2012-01-16: Simon Goldschmidt
10 * opt.h, icmp.c: Added option CHECKSUM_GEN_ICMP
12 2011-12-17: Simon Goldschmidt
13 * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW)
16 2011-09-27: Simon Goldschmidt
17 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
18 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
20 2011-09-21: Simon Goldschmidt
21 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
22 send (TCP only, bug #33820)
24 2011-09-21: Simon Goldschmidt
25 * init.c: Converted runtime-sanity-checks into compile-time checks that can
26 be disabled (since runtime checks can often not be seen on embedded targets)
28 2011-09-11: Simon Goldschmidt
29 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
30 to get a clear separation of which functions an application or port may use
33 2011-09-11: Simon Goldschmidt
34 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
35 initial local TCP/UDP ports (so that different port ranges are used after
36 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
38 2011-09-03: Simon Goldschmidt
39 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
41 2011-08-24: Simon Goldschmidt
42 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
44 2011-07-26: Simon Goldschmidt
45 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
46 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
48 2011-07-21: Simon Goldschmidt (patch by hanhui)
49 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
50 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
51 Also added code to allow ip_forward() to forward non-broadcast packets to
52 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
54 2011-07-21: Simon Goldschmidt
55 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
56 ioctl/FIONREAD return the size of the next pending datagram.
58 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
59 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
62 2011-05-25: Simon Goldschmidt
63 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
64 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
65 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
66 code so that the code is more readable.
68 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
69 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
70 Ivan! (this is work in progress: we're just post release anyway :-)
72 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
73 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
79 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
80 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
82 2012-02-15: Simon Goldschmidt
83 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
86 2012-02-12: Simon Goldschmidt
87 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
88 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
90 2012-02-11: Simon Goldschmidt
91 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
94 2012-01-22: Simon Goldschmidt
95 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
97 2012-01-21: Simon Goldschmidt
98 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
100 2012-01-20: Simon Goldschmidt
101 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
103 2012-01-20: Simon Goldschmidt
104 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
106 2011-11-25: Simon Goldschmidt
107 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
108 tcp_active_pcbs in some cases
110 2011-11-23: Simon Goldschmidt
111 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
114 2011-11-22: Simon Goldschmidt
115 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
116 netif is brought down
118 2011-10-28: Simon Goldschmidt
119 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
121 2011-10-23: Simon Goldschmidt
122 * mem.c: fixed bug #34429: possible memory corruption with
123 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
125 2011-10-18: Simon Goldschmidt
126 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
129 2011-10-18: Simon Goldschmidt
130 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
131 windows (bug #34176 select after non-blocking send times out)
133 2011-10-18: Simon Goldschmidt
134 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
135 consider netif->mtu, causes slow network
137 2011-10-18: Simon Goldschmidt
138 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
140 2011-10-18: Simon Goldschmidt
141 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
143 2011-10-17: Simon Goldschmidt
144 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
146 2011-10-13: Simon Goldschmidt
147 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
148 zero window is received) by starting the persist timer when a zero window is
149 received, not when we have more data queued for sending than fits into the
152 2011-10-13: Simon Goldschmidt
153 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
155 2011-10-13: Simon Goldschmidt
156 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
157 used and not all protocols are enabled
159 2011-10-12: Simon Goldschmidt
160 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
162 2011-10-09: Simon Goldschmidt
163 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
164 byte value when pcb->unacked != NULL
166 2011-10-09: Simon Goldschmidt
167 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
169 2011-09-27: Simon Goldschmidt
170 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
172 2011-09-27: Simon Goldschmidt
173 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
175 2011-09-27: Simon Goldschmidt
176 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
178 2011-09-24: Simon Goldschmidt
179 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
181 2011-09-23: Simon Goldschmidt
182 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
183 the last packet including FIN can lose data
185 2011-09-22: Simon Goldschmidt
186 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
189 2011-09-21: Simon Goldschmidt
190 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
193 2011-09-20: Simon Goldschmidt
194 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
196 2011-09-11: Simon Goldschmidt
197 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
200 2011-09-09: Simon Goldschmidt
201 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
204 2011-09-03: Simon Goldschmidt
205 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
206 is aggregated and sent to application
208 2011-09-01: Simon Goldschmidt
209 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
212 2011-09-01: Simon Goldschmidt
213 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
215 2011-08-24: Simon Goldschmidt
216 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
218 2011-08-24: Simon Goldschmidt
219 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
220 accept() on UDP connections
222 2011-08-24: Simon Goldschmidt
223 * sockets.h: fixed bug #34057 socklen_t should be a typedef
225 2011-08-24: Simon Goldschmidt
226 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
228 2011-08-24: Simon Goldschmidt
229 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
231 2011-08-24: Simon Goldschmidt
232 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
234 2011-08-22: Simon Goldschmidt
235 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
236 merely prevents nagle from not transmitting fast after closing.)
238 2011-07-22: Simon Goldschmidt
239 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
240 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
241 lwip_send() sends as much as possible for non-blocking sockets
243 2011-07-22: Simon Goldschmidt
244 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
245 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
246 at regular intervals from main level.
248 2011-07-21: Simon Goldschmidt
249 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
250 sending an ARP request when an ARP entry is used in the last minute before
253 2011-07-04: Simon Goldschmidt
254 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
256 2011-06-26: Simon Goldschmidt
257 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
258 updating its documentation only.
260 2011-06-26: Simon Goldschmidt
261 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
264 2011-06-26: Simon Goldschmidt
265 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
273 2011-03-27: Simon Goldschmidt
274 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
275 calculate it in tcp_zero_window_probe (the only place where it was used).
277 2010-11-21: Simon Goldschmidt
278 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
281 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
282 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
283 IP_MULTICAST_LOOP at socket- and raw-API level.
285 2010-06-16: Simon Goldschmidt
286 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
287 link-layer-addressed UDP traffic to be received while a netif is down (just
288 like DHCP during configuration)
290 2010-05-22: Simon Goldschmidt
291 * many many files: bug #27352: removed packing from ip_addr_t, the packed
292 version is now only used in protocol headers. Added global storage for
293 current src/dest IP address while in input functions.
295 2010-05-16: Simon Goldschmidt
296 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
297 calculation (and use them throughout the stack where applicable)
299 2010-05-16: Simon Goldschmidt
300 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
301 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
303 2010-05-16: Simon Goldschmidt
304 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
305 MEMP pool instead of the heap
307 2010-05-13: Simon Goldschmidt
308 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
309 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
310 packets to more than one pcb.
312 2010-05-02: Simon Goldschmidt
313 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
314 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
316 2010-04-30: Simon Goldschmidt
317 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
318 take a precalculated checksum, added pbuf_fill_chksum() to copy data
319 into a pbuf and at the same time calculating the checksum for that data
321 2010-04-29: Simon Goldschmidt
322 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
323 2-byte-aligned IP addresses and MAC addresses
325 2010-04-28: Patch by Bill Auerbach
326 * ip.c: Inline generating IP checksum to save a function call
328 2010-04-14: Simon Goldschmidt
329 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
330 tcpip_thread processes messages or timeouts to implement a watchdog.
332 2010-03-28: Simon Goldschmidt
333 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
334 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
336 2010-03-27: Simon Goldschmidt
337 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
338 etharp_query to prevent unnecessary function calls (inspired by
341 2010-03-20: Simon Goldschmidt
342 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
343 since the linker cannot do this automatically to save space.
345 2010-03-20: Simon Goldschmidt
346 * opt.h, etharp.c/.h: Added support for static ARP table entries
348 2010-03-14: Simon Goldschmidt
349 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
350 when creating TCP segments, not when (re-)transmitting them.
352 2010-03-07: Simon Goldschmidt
353 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
354 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
355 This should speed up receiving data on sockets as the select code in
356 event_callback is only executed when select is waiting.
358 2010-03-06: Simon Goldschmidt
359 * tcp_out.c: task #7013 (Create option to have all packets delivered to
360 netif->output in one piece): Always copy to try to create single pbufs
363 2010-03-06: Simon Goldschmidt
364 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
365 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
366 for tcp netconns to receive pbufs, not netbufs; use that function
369 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
370 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
371 Work on tcp_enqueue: Don't waste memory when chaining segments,
372 added option TCP_OVERSIZE to prevent creating many small pbufs when
373 calling tcp_write with many small blocks of data. Instead, pbufs are
374 allocated larger than needed and the space is used for later calls to
377 2010-02-21: Simon Goldschmidt
378 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
381 2010-02-21: Simon Goldschmidt
382 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
383 implementation of tcp to make API usage cleare to application programmers
385 2010-02-14: Simon Goldschmidt/Stephane Lesage
386 * ip_addr.h: Improved some defines working on ip addresses, added faster
387 macro to copy addresses that cannot be NULL
389 2010-02-13: Simon Goldschmidt
390 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
391 blocking send operation)
393 2010-02-12: Simon Goldschmidt
394 * sockets.c/.h: Added a minimal version of posix fctl() to have a
395 standardised way to set O_NONBLOCK for nonblocking sockets.
397 2010-02-12: Simon Goldschmidt
398 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
399 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
400 and dhcp work with user-allocated structs instead of callin mem_malloc
402 2010-02-12: Simon Goldschmidt/Jeff Barber
403 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
404 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
406 2010-02-12: Simon Goldschmidt
407 * sys layer: task #10139 (Prefer statically allocated memory): converted
408 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
409 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
410 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
411 to let sys.h use binary semaphores instead of mutexes - as before)
413 2010-02-09: Simon Goldschmidt (Simon Kallweit)
414 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
415 (Restart system timeout handling)
417 2010-02-09: Simon Goldschmidt
418 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
419 netif.c) - loopif does not have to be created by the port any more,
420 just define LWIP_HAVE_LOOPIF to 1.
422 2010-02-08: Simon Goldschmidt
423 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
424 inet_ntoa_r/ipaddr_ntoa_r
426 2010-02-08: Simon Goldschmidt
427 * netif.h: Added netif_s/get_igmp_mac_filter() macros
429 2010-02-05: Simon Goldschmidt
430 * netif.h: Added function-like macros to get/set the hostname on a netif
432 2010-02-04: Simon Goldschmidt
433 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
434 make changing the actual implementation behind the typedef easier.
436 2010-02-01: Simon Goldschmidt
437 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
438 for allocating memory when getaddrinfo() is called.
440 2010-01-31: Simon Goldschmidt
441 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
442 them once instead of parsing for every option. This also removes
443 the need for mem_malloc from dhcp_recv and makes it possible to
444 correctly retrieve the BOOTP file.
446 2010-01-30: simon Goldschmidt
447 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
450 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
451 * api.h, api_msg.c, sockets.c: Added except set support in select
454 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
455 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
456 Add non-blocking support for connect (partly from patch #6860),
457 plus many cleanups in socket & netconn API.
459 2010-01-27: Simon Goldschmidt
460 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
461 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
463 2010-01-26: Simon Goldschmidt
464 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
466 2010-01-14: Simon Goldschmidt
467 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
468 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
470 2010-01-13: Simon Goldschmidt
471 * mem.c: The heap now may be moved to user-defined memory by defining
472 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
473 (patch #6966 and bug #26133)
475 2010-01-10: Simon Goldschmidt (Bill Auerbach)
476 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
479 2010-01-10: Simon Goldschmidt
480 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
481 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
483 2009-12-31: Simon Goldschmidt
484 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
485 added timers.c/.h: Separated timer implementation from semaphore/mbox
486 implementation, moved timer implementation to timers.c/.h, timers are
487 now only called from tcpip_thread or by explicitly checking them.
490 2009-12-27: Simon Goldschmidt
491 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
492 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
497 2011-04-20: Simon Goldschmidt
498 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
500 2011-04-13: Simon Goldschmidt
501 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
502 using ports in the IANA private/dynamic range (49152 through 65535).
504 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
505 * etharp.h/.c: Fixed broken VLAN support.
507 2011-03-27: Simon Goldschmidt
508 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
509 pcbs) by checking if the pcb was bound (local_port != 0).
511 2011-03-27: Simon Goldschmidt
512 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
514 2011-03-27: Simon Goldschmidt
515 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
516 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
518 2011-03-27: Simon Goldschmidt
519 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
520 is present never times out) by starting retransmission timer before checking
523 2011-03-22: Simon Goldschmidt
524 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
525 calling sio_read_abort() if the file descriptor is valid.
527 2011-03-14: Simon Goldschmidt
528 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
529 more than once can render a socket useless) since it mainly involves changing
530 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
532 2011-03-13: Simon Goldschmidt
533 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
534 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
535 use EALRADY instead of -1
537 2011-03-13: Simon Goldschmidt
538 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
539 connection has been aborted by err_tcp (since this is not a normal closing
542 2011-03-13: Simon Goldschmidt
543 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
544 with pcb->state != CLOSED
546 2011-02-17: Simon Goldschmidt
547 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
550 2011-02-17: Simon Goldschmidt
551 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
553 2011-01-24: Simon Goldschmidt
554 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
556 2010-12-02: Simon Goldschmidt
557 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
559 2010-11-23: Simon Goldschmidt
560 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
561 LWIP_SO_RCVBUF and ioctl/FIONREAD.
563 2010-11-23: Simon Goldschmidt
564 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
565 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
567 2010-11-23: Simon Goldschmidt
568 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
569 refusing 'refused_data' again.
571 2010-11-22: Simon Goldschmidt
572 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
573 after a successful nonblocking connection.
575 2010-11-22: Simon Goldschmidt
576 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
577 must be sent link-local
579 2010-11-22: Simon Goldschmidt
580 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
583 2010-11-20: Simon Goldschmidt
584 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
586 2010-11-20: Simon Goldschmidt
587 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
588 resemble other stacks.
590 2010-11-20: Simon Goldschmidt
591 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
592 no-copy TCP writes will never succeed.
594 2010-11-20: Simon Goldschmidt
595 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
596 not match documentation: return ERR_ARG instead of ERR_VAL if not
597 initialized or wrong argument.
599 2010-10-20: Simon Goldschmidt
600 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
602 2010-10-05: Simon Goldschmidt
603 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
604 replugging the network cable after an AutoIP address was assigned.
606 2010-08-10: Simon Goldschmidt
607 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
609 2010-08-03: Simon Goldschmidt
610 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
612 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
613 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
614 endian architectures)
616 2010-07-28: Simon Goldschmidt
617 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
620 2010-07-27: Simon Goldschmidt
621 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
622 harm but never did anything
624 2010-07-21: Simon Goldschmidt
625 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
628 2010-07-16: Kieran Mansley
629 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
631 2010-07-10: Simon Goldschmidt
632 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
634 2010-06-30: Simon Goldschmidt
635 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
638 2010-06-28: Kieran Mansley
639 * timers.c remove unportable printing of C function pointers
641 2010-06-24: Simon Goldschmidt
642 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
643 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
645 2010-06-24: Simon Goldschmidt
646 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
647 implemented shutdown at socket level.
649 2010-06-21: Simon Goldschmidt
650 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
651 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
652 custom pbufs that reference other (original) pbufs. Additionally set
653 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
655 2010-06-15: Simon Goldschmidt
656 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
658 2010-06-14: Simon Goldschmidt
659 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
661 2010-06-12: Simon Goldschmidt
662 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
665 2010-05-17: Simon Goldschmidt
666 * netdb.c: Correctly NULL-terminate h_addr_list
668 2010-05-16: Simon Goldschmidt
669 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
670 "symbol already defined" i.e. when linking to winsock
672 2010-05-05: Simon Goldschmidt
673 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
676 2010-04-21: Simon Goldschmidt
677 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
680 2010-03-28: Luca Ceresoli
681 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
683 2010-03-27: Luca Ceresoli
684 * mib2.c: patch #7130: remove meaningless const qualifiers
686 2010-03-26: Simon Goldschmidt
687 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
689 2010-03-26: Simon Goldschmidt
690 * various files: Fixed compiling with different options disabled (TCP/UDP),
691 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
693 2010-03-25: Simon Goldschmidt
694 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
696 2010-03-25: Simon Goldschmidt
697 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
698 overrunning our rcv_wnd in ooseq case.
700 2010-03-22: Simon Goldschmidt
701 * tcp.c: tcp_listen() did not copy the pcb's prio.
703 2010-03-19: Simon Goldschmidt
704 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
706 2010-03-14: Simon Goldschmidt
707 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
708 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
709 and basing PBUF_LINK_HLEN on it.
711 2010-03-08: Simon Goldschmidt
712 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
713 when assiging routable address): when checking incoming packets and
714 aborting existing connection on address change, filter out link-local
717 2010-03-06: Simon Goldschmidt
718 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
720 2010-03-06: Simon Goldschmidt
721 * ipv4/ip.c: Don't try to forward link-local addresses
723 2010-03-06: Simon Goldschmidt
724 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
727 2010-03-05: Simon Goldschmidt
728 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
731 2010-03-05: Simon Goldschmidt
732 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
733 into multiple calls to tcp_write.
735 2010-02-21: Simon Goldschmidt
736 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
737 the implementation of DNS_USES_STATIC_BUF==1)
739 2010-02-20: Simon Goldschmidt
740 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
741 close() vs. shutdown(). Now the application does not get any more
742 recv callbacks after calling tcp_close(). Added tcp_shutdown().
744 2010-02-19: Simon Goldschmidt
745 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
746 confusion with realloc()
748 2010-02-15: Simon Goldschmidt/Stephane Lesage
749 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
752 2010-02-14: Simon Goldschmidt
753 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
754 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
755 admin-status of a netif are up
757 2010-02-14: Simon Goldschmidt
758 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
759 reception and is not really necessary
761 2010-02-14: Simon Goldschmidt
762 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
763 request was directed as us (RFC 826, Packet Reception), otherwise
764 only update existing entries; internalized some functions
766 2010-02-14: Simon Goldschmidt
767 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
768 disabled on netif used for PPPoE) by adding a new netif flag
769 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
770 device but prevents usage of ARP (so that ethernet_input can be used
773 2010-02-12: Simon Goldschmidt
774 * netif.c: netif_set_link_up/down: only do something if the link state
777 2010-02-12: Simon Goldschmidt/Stephane Lesage
778 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
781 2010-02-12: Simon Goldschmidt
782 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
784 2010-02-09: Simon Goldschmidt
785 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
786 (recv() makes receive window update for data that wasn't received by
789 2010-02-09: Simon Goldschmidt/Stephane Lesage
790 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
791 or any netconn_recv() error)
793 2010-02-09: Simon Goldschmidt
794 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
796 2010-02-09: Simon Goldschmidt
797 * netif.c: For loopback packets, adjust the stats- and snmp-counters
798 for the loopback netif.
800 2010-02-08: Simon Goldschmidt
801 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
802 since they are not used anywhere else.
804 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
805 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
806 (patch from bug #28798)
808 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
809 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
810 another bug when LWIP_RAND() returns zero.
812 2010-02-04: Simon Goldschmidt
813 * nearly every file: Use macros defined in ip_addr.h (some of them new)
814 to work with IP addresses (preparation for bug #27352 - Change ip_addr
815 from struct to typedef (u32_t) - and better code).
817 2010-01-31: Simon Goldschmidt
818 * netif.c: Don't call the link-callback from netif_set_up/down() since
819 this invalidly retriggers DHCP.
821 2010-01-29: Simon Goldschmidt
822 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
823 portability file inet.h and its contents from the stack: moved htonX-
824 functions to def.h (and the new def.c - they are not ipv4 dependent),
825 let inet.h depend on ip_addr.h and not the other way round.
826 This fixes bug #28732.
828 2010-01-28: Kieran Mansley
829 * tcp.c: Ensure ssthresh >= 2*MSS
831 2010-01-27: Simon Goldschmidt
832 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
833 callback can lead to accessing unallocated memory. As a consequence,
834 ERR_ABRT means the application has called tcp_abort()!
836 2010-01-25: Simon Goldschmidt
837 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
838 not implemented in SNMP): write-only or not-accessible are still
839 returned by getnext (though not by get)
841 2010-01-24: Simon Goldschmidt
842 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
843 not use reserved C/C++ keywords
845 2010-01-23: Simon Goldschmidt
846 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
849 2010-01-21: Simon Goldschmidt
850 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
851 if tcp_enqueue fails) both in raw- and netconn-API
853 2010-01-19: Simon Goldschmidt
854 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
856 2010-01-18: Iordan Neshev/Simon Goldschmidt
857 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
858 bugfix backports from 2.4.x.
860 2010-01-18: Simon Goldschmidt
861 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
863 2010-01-17: Simon Goldschmidt
864 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
865 task #10102: "netconn: clean up conn->err threading issues" by adding
866 error return value to struct api_msg_msg
868 2010-01-17: Simon Goldschmidt
869 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
870 to return err_t (bugs #27709 and #28087)
872 2010-01-14: Simon Goldschmidt
873 * ...: Use typedef for function prototypes throughout the stack.
875 2010-01-13: Simon Goldschmidt
876 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
877 window = 0) by correctly draining recvmbox/acceptmbox
879 2010-01-11: Simon Goldschmidt
880 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
881 erroneous callbacks) by copying the code from recent pppd
883 2010-01-10: Simon Goldschmidt
884 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
886 2010-01-10: Simon Goldschmidt
887 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
889 2010-01-08: Simon Goldschmidt
890 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
892 2010-01-08: Simon Goldschmidt
893 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
894 passed to dns_local_addhost() might be volatile
896 2010-01-07: Simon Goldschmidt
897 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
899 2010-01-06: Simon Goldschmidt
900 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
902 2009-12-31: Simon Goldschmidt
903 * many ppp files: Reorganised PPP source code from ucip structure to pppd
904 structure to easily compare our code against the pppd code (around v2.3.1)
906 2009-12-27: Simon Goldschmidt
907 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
915 2009-10-27 Simon Goldschmidt/Stephan Lesage
916 * netifapi.c/.h: Added netifapi_netif_set_addr()
918 2009-10-07 Simon Goldschmidt/Fabian Koch
919 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
920 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
922 2009-08-26 Simon Goldschmidt/Simon Kallweit
923 * slipif.c/.h: bug #26397: SLIP polling support
925 2009-08-25 Simon Goldschmidt
926 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
927 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
929 2009-08-25 Simon Goldschmidt
930 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
932 2009-08-24 Jakob Stoklund Olesen
933 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
934 to netif_set_link_up().
936 2009-08-23 Simon Goldschmidt
937 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
938 to a human-readable string.
942 2009-12-24: Kieran Mansley
943 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
946 2009-12-06: Simon Goldschmidt
947 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
948 be statically allocated (like in ucip)
950 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
951 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
953 2009-12-03: Simon Goldschmidt
954 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
955 could have non-zero length
957 2009-12-02: Simon Goldschmidt
958 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
959 tcp_input_pcb until after calling the pcb's callbacks
961 2009-11-29: Simon Goldschmidt
962 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
963 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
965 2009-11-29: Simon Goldschmidt
966 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
967 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
969 2009-11-26: Simon Goldschmidt
970 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
973 2009-11-26: Simon Goldschmidt
974 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
975 algorithm at PCB level
977 2009-11-22: Simon Goldschmidt
978 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
980 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
981 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
982 reusing time-wait pcb
984 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
985 * sockets.c: Fixed bug #28062: Data received directly after accepting
986 does not wake up select
988 2009-11-11: Simon Goldschmidt
989 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
991 2009-10-30: Simon Goldschmidt
992 * opt.h: Increased default value for TCP_MSS to 536, updated default
993 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
995 2009-10-28: Kieran Mansley
996 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
997 to follow algorithm from TCP/IP Illustrated
999 2009-10-27: Kieran Mansley
1000 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1002 2009-10-25: Simon Goldschmidt
1003 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1004 pcb->recv is NULL to keep rcv_wnd correct)
1006 2009-10-25: Simon Goldschmidt
1007 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1009 2009-10-23: Simon Goldschmidt (David Empson)
1010 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1012 2009-10-21: Simon Goldschmidt
1013 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1014 trailing 1 byte len (SYN/FIN)
1016 2009-10-21: Simon Goldschmidt
1017 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1019 2009-10-19: Simon Goldschmidt
1020 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1021 conditional code to assert where applicable), check pbuf length before
1022 testing for valid reply
1024 2009-10-19: Simon Goldschmidt
1025 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1026 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1028 2009-10-16: Simon Goldschmidt
1029 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1030 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1033 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1034 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1036 2009-10-15: Simon Goldschmidt
1037 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1040 2009-10-15: Simon Goldschmidt
1041 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1042 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1043 of network byte order
1045 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1046 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1047 which are not consecutive when retransmitting unacked segments
1049 2009-10-09 Simon Goldschmidt
1050 * opt.h: Fixed default values of some stats to only be enabled if used
1051 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1053 2009-08-30 Simon Goldschmidt
1054 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1055 function" by checking for loopback before calling ip_frag
1057 2009-08-25 Simon Goldschmidt
1058 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1060 2009-08-23 Simon Goldschmidt
1061 * ppp.c: bug #27078: Possible memory leak in pppInit()
1063 2009-08-23 Simon Goldschmidt
1064 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1067 2009-08-23 Simon Goldschmidt
1068 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1069 Fixed wrong parenthesis, added check in init.c
1071 2009-08-23 Simon Goldschmidt
1072 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1074 2009-08-23 Simon Goldschmidt
1075 * many ppp files: bug #27267: Added include to string.h where needed
1077 2009-08-23 Simon Goldschmidt
1078 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1085 2009-05-10 Simon Goldschmidt
1086 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1087 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1088 one pbuf to help MACs that don't support scatter-gather DMA.
1090 2009-05-09 Simon Goldschmidt
1091 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1092 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1094 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1095 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1096 extended info about the currently received packet.
1098 2009-04-27 Simon Goldschmidt
1099 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1101 2009-04-25 Simon Goldschmidt
1102 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1103 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1105 2009-04-21 Simon Goldschmidt
1106 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1107 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1108 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1109 as an external function for lookup.
1111 2009-04-15 Simon Goldschmidt
1112 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1114 2009-03-31 Kieran Mansley
1115 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1116 TCP timestamp options, off by default. Rework tcp_enqueue() to
1117 take option flags rather than specified option data
1119 2009-02-18 Simon Goldschmidt
1120 * cc.h: Added printf formatter for size_t: SZT_F
1122 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1123 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1126 2009-02-12 Simon Goldschmidt
1127 * init.h: Added LWIP_VERSION to get the current version of the stack
1129 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1130 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1131 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1134 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1135 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1136 is only used by UDPLITE at present, so conditionalise it.
1138 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1139 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1140 "seed" address. This should reduce AUTOIP conflicts if
1141 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1143 2008-10-02 Jonathan Larmour and Rishi Khan
1144 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1147 2008-06-30 Simon Goldschmidt
1148 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1149 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1150 mem_free to run between mem_malloc iterations. Added illegal counter for
1153 2008-06-27 Simon Goldschmidt
1154 * stats.h/.c, some other files: patch #6483: stats module improvement:
1155 Added defines to display each module's statistic individually, added stats
1156 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1158 2008-06-17 Simon Goldschmidt
1159 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1160 (define LWIP_ERR_T in cc.h)
1162 2008-06-17 Simon Goldschmidt
1163 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1166 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1167 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1168 modified version of patch # 6370: Moved loopif code to netif.c so that
1169 loopback traffic is supported on all netifs (all local IPs).
1170 Added option to limit loopback packets for each netifs.
1174 2009-08-12 Kieran Mansley
1175 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1176 out of window or out of order properly
1178 2009-08-12 Kieran Mansley
1179 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1181 2009-07-28 Simon Goldschmidt
1182 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1184 2009-07-27 Kieran Mansley
1185 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1187 2009-07-09 Kieran Mansley
1188 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1189 recv_avail and don't increment counters until message successfully
1192 2009-06-25 Kieran Mansley
1193 * api_msg.c api.h: BUG26722: initialise netconn write variables
1196 2009-06-25 Kieran Mansley
1197 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1199 2009-06-25 Kieran Mansley
1200 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1201 simultaneous close behaviour, and make snd_nxt have the same meaning
1204 2009-05-12 Simon Goldschmidt
1205 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1206 arp_table / uses etharp_query" by adding etharp_gratuitous()
1208 2009-05-12 Simon Goldschmidt
1209 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1210 to the IP header (used by igmp_ip_output_if)
1212 2009-05-06 Simon Goldschmidt
1213 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1214 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1216 2009-05-05 Simon Goldschmidt
1217 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1220 2009-05-04 Simon Goldschmidt
1221 * init.c: snmp was not initialized in lwip_init()
1223 2009-05-04 Frédéric Bernon
1224 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1226 2009-05-03 Simon Goldschmidt
1227 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1228 (and unsent->next == NULL)
1230 2009-05-02 Simon Goldschmidt
1231 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1232 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1234 2009-05-02 Simon Goldschmidt
1235 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1237 2009-05-01 Simon Goldschmidt
1238 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1240 2009-05-01 Simon Goldschmidt
1241 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1243 2009-04-29 Frédéric Bernon
1244 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1245 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1246 of broadcast packets even when this option wasn't set. Port maintainers
1247 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1248 If you want this option also filter broadcast on recv operations, you also
1249 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1251 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1252 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1253 DHCP/AUTOIP cooperation
1255 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1256 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1257 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1258 right place in tcp_output and tcp_rexmit).
1260 2009-04-25 Simon Goldschmidt
1261 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1262 when debugging": memp_sizes contained the wrong sizes (including sanity
1263 regions); memp pools for MEM_USE_POOLS were too small
1265 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1266 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1267 behavior, with with ip address string not ended by a '\0', a space or a
1270 2009-04-19 Simon Goldschmidt
1271 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1272 pcb->err is called, not pcb->connected (with an error code).
1274 2009-04-19 Simon Goldschmidt
1275 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1276 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1278 2009-04-19 Simon Goldschmidt
1279 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1280 in the header pbuf, not the data pbuf)
1282 2009-04-18 Simon Goldschmidt
1283 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1285 2009-04-15 Simon Goldschmidt
1286 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1288 2009-04-15 Simon Goldschmidt
1289 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1291 2009-04-15 Simon Goldschmidt
1292 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1293 ip_hinted_output() (for smaller code mainly)
1295 2009-04-15 Simon Goldschmidt
1296 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1298 2009-04-15 Simon Goldschmidt
1299 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1300 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1301 is big enough in dhcp_start
1303 2009-04-15 Simon Goldschmidt
1304 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1306 2009-04-15 Simon Goldschmidt
1307 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1309 2009-04-15 Simon Goldschmidt
1310 * sockets.c: bug #26121: set_errno can be overridden
1312 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1313 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1316 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1317 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1320 2009-03-31 Kieran Mansley
1321 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1322 updates are calculated and sent (BUG20515)
1324 * tcp_in.c: cope with SYN packets received during established states,
1325 and retransmission of initial SYN.
1327 * tcp_out.c: set push bit correctly when tcp segments are merged
1329 2009-03-27 Kieran Mansley
1330 * tcp_out.c set window correctly on probes (correcting change made
1333 2009-03-26 Kieran Mansley
1334 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1335 connections where no reset required (bug #25622)
1337 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1340 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1341 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1342 too small depending on MEM_ALIGNMENT
1344 2009-02-16 Simon Goldschmidt
1345 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1346 converted size argument of netconn_write to 'size_t'
1348 2009-02-16 Simon Goldschmidt
1349 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1350 by moving accept callback function pointer to TCP_PCB_COMMON
1352 2009-02-12 Simon Goldschmidt
1353 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1356 2009-02-11 Simon Goldschmidt
1357 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1359 2009-02-11 Simon Goldschmidt
1360 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1361 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1363 2009-02-10 Simon Goldschmidt
1364 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1365 Accepts_pending is decrease on a corresponding listen pcb when a connection
1366 in state SYN_RCVD is close.
1368 2009-01-28 Jonathan Larmour
1369 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1372 2008-12-19 Simon Goldschmidt
1373 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1375 2008-12-10 Tamas Somogyi, Frédéric Bernon
1376 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1377 port uses deleted netbuf.
1379 2008-10-18 Simon Goldschmidt
1380 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1383 2008-10-15 Simon Goldschmidt
1384 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1385 by packing the struct ip_reass_helper.
1387 2008-10-03 David Woodhouse, Jonathan Larmour
1388 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1390 2008-10-02 Jonathan Larmour
1391 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1392 padding is included.
1394 2008-09-30 Jonathan Larmour
1395 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1396 assertion check that addrlen isn't NULL.
1398 2008-09-30 Jonathan Larmour
1399 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1401 2008-08-26 Simon Goldschmidt
1402 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1403 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1405 2008-08-14 Simon Goldschmidt
1406 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1407 tcp_close returns != ERR_OK)
1409 2008-07-08 Frédéric Bernon
1410 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1411 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1413 2008-06-24 Jonathan Larmour
1414 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1415 if tcp_seg_copy fails.
1417 2008-06-17 Simon Goldschmidt
1418 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1419 and created defines for swapping bytes and folding u32 to u16.
1421 2008-05-30 Kieran Mansley
1422 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1423 rather than rcv_ann_wnd when deciding if packets are in-window.
1424 Contributed by <arasmussen@consultant.datasys.swri.edu>
1426 2008-05-30 Kieran Mansley
1427 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1428 passing as function pointers when MEM_LIBC_MALLOC is defined.
1430 2008-05-09 Jonathan Larmour
1431 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1432 stop it being treated as a fatal error.
1434 2008-04-15 Simon Goldschmidt
1435 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1438 2008-03-27 Simon Goldschmidt
1439 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1440 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1441 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1442 or heap memory from interrupt context
1444 2008-03-26 Simon Goldschmidt
1445 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1446 host sent a zero mss as TCP option.
1453 2008-03-10 Jonathan Larmour
1454 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1455 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1457 2008-01-22 Frédéric Bernon
1458 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1459 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1461 2008-01-14 Frédéric Bernon
1462 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1463 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1464 tcp_recv callback (see rawapi.txt).
1466 2008-01-14 Frédéric Bernon, Marc Chaland
1467 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1469 2008-01-12 Frédéric Bernon
1470 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1471 netconn::sem per netconn::op_completed like suggested for the task #7490
1472 "Add return value to sys_mbox_post".
1474 2008-01-12 Frédéric Bernon
1475 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1476 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1477 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1479 2008-01-10 Frédéric Bernon
1480 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1481 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1482 "blocking" ("block" parameter = 1).
1484 2008-01-10 Frédéric Bernon
1485 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1486 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1487 "Add return value to sys_mbox_post".
1489 2008-01-05 Frédéric Bernon
1490 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1491 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1492 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1493 indicate the number of pointers query by the mailbox. There is three defines
1494 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1495 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1496 parameter in your implementation, but to ignore it to keep the previous behavior.
1497 The new sys_mbox_trypost function return a value to know if the mailbox is
1498 full or if the message is posted. Take a look to sys_arch.txt for more details.
1499 This new function is used in tcpip_input (so, can be called in an interrupt
1500 context since the function is not blocking), and in recv_udp and recv_raw.
1502 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1503 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1504 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1505 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1506 documentation in the rawapi.txt file.
1508 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1509 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1511 2007-12-31 Frédéric Bernon, Luca Ceresoli
1512 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1513 in autoip". The change in etharp_raw could be removed, since all calls to
1514 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1515 wrong in the future.
1517 2007-12-30 Frédéric Bernon, Tom Evans
1518 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1519 Filtering" reported by Tom Evans.
1521 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1522 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1523 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1524 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1525 keep accepting new connections.
1527 2007-12-13 Frédéric Bernon
1528 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1529 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1531 2007-12-12 Frédéric Bernon
1532 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1533 are the one which have ram usage.
1535 2007-12-05 Frédéric Bernon
1536 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1537 set of variables (=0) or a local one (=1). In this last case, your port should
1538 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1539 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1541 2007-12-03 Simon Goldschmidt
1542 * ip.c: ip_input: check if a packet is for inp first before checking all other
1543 netifs on netif_list (speeds up packet receiving in most cases)
1545 2007-11-30 Simon Goldschmidt
1546 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1547 UDP: move a (connected) pcb selected for input to the front of the list of
1548 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1551 2007-11-28 Simon Goldschmidt
1552 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1554 2007-11-25 Simon Goldschmidt
1555 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1558 2007-11-24 Simon Goldschmidt
1559 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1560 to the new file netdb.c; included lwip_getaddrinfo.
1562 2007-11-21 Simon Goldschmidt
1563 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1564 based on the MTU of the netif used to send. Enabled by default. Disable by
1565 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1567 2007-11-19 Frédéric Bernon
1568 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1569 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1570 copy dns payload to parse the response), return an error if there is no place
1571 for a new query, and fix some minor problems.
1573 2007-11-16 Simon Goldschmidt
1574 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1575 removed files: core/inet.c, core/inet6.c
1576 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1577 inet and chksum part; changed includes in all lwIP files as appropriate
1579 2007-11-16 Simon Goldschmidt
1580 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1581 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1582 (gethostbyname/gethostbyname_r).
1584 2007-11-15 Jim Pettinato, Frédéric Bernon
1585 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1586 requests with RAW api interface. Initialization is done in lwip_init() with
1587 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1588 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1589 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1590 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1591 list with points to improve.
1593 2007-11-06 Simon Goldschmidt
1594 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1595 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1596 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1598 2007-11-06 Simon Goldschmidt
1599 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1600 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1601 implementation from netconn api applications.
1603 2007-11-03 Frédéric Bernon
1604 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1605 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1606 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1607 it. This is a first release which have to be improve for TCP. Note it used the
1608 netconn::recv_avail which need to be more "thread-safe" (note there is already
1609 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1611 2007-11-01 Frédéric Bernon, Marc Chaland
1612 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1613 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1614 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1615 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1616 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1618 2007-10-24 Frédéric Bernon
1619 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1620 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1621 some code (like we have talk in "patch #5919 : Create compile switch to remove
1622 select code"), but it could be done later.
1624 2007-10-08 Simon Goldschmidt
1625 * many files: Changed initialization: many init functions are not needed any
1626 more since we now rely on the compiler initializing global and static
1629 2007-10-06 Simon Goldschmidt
1630 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1631 to enqueue the received pbufs so that multiple packets can be reassembled
1632 simultaneously and no static reassembly buffer is needed.
1634 2007-10-05 Simon Goldschmidt
1635 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1636 all netifs (or ports) can use it.
1638 2007-10-05 Frédéric Bernon
1639 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1640 common function to reduce a little bit the footprint (for all functions using
1641 only the "netif" parameter).
1643 2007-10-03 Frédéric Bernon
1644 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1645 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1646 a little bit the footprint (for all functions using only the "netif" parameter).
1648 2007-09-15 Frédéric Bernon
1649 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1650 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1651 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1652 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1654 2007-09-10 Frédéric Bernon
1655 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1656 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1657 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1658 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1659 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1660 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1661 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1662 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1663 when it's queried (any direct call to "sysuptime" is changed by a call to
1664 snmp_get_sysuptime).
1666 2007-09-09 Frédéric Bernon, Bill Florac
1667 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1668 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1669 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1670 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1671 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1672 the next query message to receive the matching multicast streams).
1674 2007-09-08 Frédéric Bernon
1675 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1676 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1677 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1678 Enable to access to these fields with LWIP_TCP=0.
1680 2007-09-05 Frédéric Bernon
1681 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1682 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1683 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1684 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1685 help to reduce footprint, and to reduce "visibility" on the Internet.
1687 2007-09-05 Frédéric Bernon, Bill Florac
1688 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1689 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1690 parameters have to be provided: a task name, and a task stack size. For this
1691 one, since it's platform dependant, you could define the best one for you in
1692 your lwipopts.h. For port maintainers, you can just add these new parameters
1693 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1696 2007-09-05 Frédéric Bernon
1697 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1698 inside init.c for task #7142 "Sanity check user-configurable values".
1700 2007-09-04 Frédéric Bernon, Bill Florac
1701 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1702 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1703 value). It will avoid potential fragmentation problems, use a counter to know
1704 how many times a group is used on an netif, and free it when all applications
1705 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1706 check if LWIP_IGMP!=0).
1708 2007-09-03 Frédéric Bernon
1709 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1710 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1711 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1712 and/or the "interface" field (for netconn layer), for join/leave operations.
1713 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1714 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1716 2007-08-30 Frédéric Bernon
1717 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1718 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1719 with other API (application based on raw API, or future "socket2" API). Ports
1720 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1722 2007-08-30 Frédéric Bernon, Jonathan Larmour
1723 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1724 user-configurable values".
1726 2007-08-29 Frédéric Bernon
1727 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1728 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1729 spirit than the others modules. Modify some IGMP debug traces.
1731 2007-08-29 Frédéric Bernon
1732 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1733 Add lwip_init function to regroup all modules initializations, and to provide
1734 a place to add code for task #7142 "Sanity check user-configurable values".
1735 Ports maintainers should remove direct initializations calls from their code,
1736 and add init.c in their makefiles. Note that lwip_init() function is called
1737 inside tcpip_init, but can also be used by raw api users since all calls are
1738 disabled when matching options are disabled. Also note that their is new options
1739 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1741 2007-08-26 Marc Boucher
1742 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1743 since they can under certain circumstances be called with an invalid conn
1744 pointer after the connection has been closed (and conn has been freed).
1746 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1747 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1748 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1750 2007-08-22 Frédéric Bernon
1751 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1752 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1754 2007-08-22 Frédéric Bernon
1755 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1756 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1757 name is tcpip_input (we keep the name of 1.2.0 function).
1759 2007-08-17 Jared Grubb
1760 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1761 settings into new memp_std.h and optional user file lwippools.h. This adds
1762 more dynamic mempools, and allows the user to create an arbitrary number of
1763 mempools for mem_malloc.
1765 2007-08-16 Marc Boucher
1766 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1767 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1768 close the connection.
1770 2007-08-16 Marc Boucher
1771 * sockets.c: lwip_accept(): check netconn_peer() error return.
1773 2007-08-16 Marc Boucher
1774 * mem.c, mem.h: Added mem_calloc().
1776 2007-08-16 Marc Boucher
1777 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1778 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1779 and starving other message types.
1780 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1782 2007-08-16 Marc Boucher
1783 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1784 type and flgs (later renamed to flags).
1785 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1786 Improved lwip_recvfrom(). TCP push now propagated.
1788 2007-08-16 Marc Boucher
1789 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1792 2007-08-16 Marc Boucher
1793 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1794 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1795 Added PPPoE support and various PPP improvements.
1797 2007-07-25 Simon Goldschmidt
1798 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1799 making netbuf_copy_partial use this function.
1801 2007-07-25 Simon Goldschmidt
1802 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1803 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1806 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1807 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1808 a link callback in the netif struct, and functions to handle it. Be carefull
1809 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1810 if you want to be sure to be compatible with future changes...
1812 2007-06-30 Frédéric Bernon
1813 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1815 2007-06-21 Simon Goldschmidt
1816 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1817 LWIP_AUTOIP =0 and =1 to remove redundant code.
1819 2007-06-21 Simon Goldschmidt
1820 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1821 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1822 heap. This both prevents memory fragmentation and gives a higher speed
1823 at the cost of more memory consumption. Turned off by default.
1825 2007-06-21 Simon Goldschmidt
1826 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1827 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1828 int to be able to send a bigger buffer than 64K with one time (mainly
1829 used from lwip_send).
1831 2007-06-21 Simon Goldschmidt
1832 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1833 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1835 2007-06-21 Simon Goldschmidt
1836 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1837 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1838 changes on low memory or empty send-buffer.
1840 2007-06-18 Simon Goldschmidt
1841 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1842 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1843 used for ethernet and struct eth_addr already had a defined length of 6).
1845 2007-06-17 Simon Goldschmidt
1846 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1847 to disable UDP checksum generation on transmit.
1849 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1850 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1851 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1852 this macro to check "conn" parameter in api_msg.c functions.
1854 2007-06-11 Simon Goldschmidt
1855 * sockets.c, sockets.h: Added UDP lite support for sockets
1857 2007-06-10 Simon Goldschmidt
1858 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1859 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1862 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1863 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1864 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1865 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1866 (see TODO mark in the source code).
1868 2007-06-09 Simon Goldschmidt
1869 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1870 etharp_output() to match netif->output so etharp_output() can be used
1871 directly as netif->output to save one function call.
1873 2007-06-08 Simon Goldschmidt
1874 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1875 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1876 added initialization of those to ethernetif, slipif and loopif.
1878 2007-05-18 Simon Goldschmidt
1879 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1880 (defaulting to off for now) that can be set to 0 to send fragmented
1881 packets by passing PBUF_REFs down the stack.
1883 2007-05-23 Frédéric Bernon
1884 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1885 connections, such present in patch #5959.
1887 2007-05-23 Frédéric Bernon
1888 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1889 code in only one part...
1891 2007-05-18 Simon Goldschmidt
1892 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1893 elements to overflow. This is achieved by adding some bytes before and after
1894 each pool element (increasing their size, of course), filling them with a
1895 prominent value and checking them on freeing the element.
1896 Set it to 2 to also check every element in every pool each time memp_malloc()
1897 or memp_free() is called (slower but more helpful).
1899 2007-05-10 Simon Goldschmidt
1900 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1901 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1904 2007-05-11 Frédéric Bernon
1905 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1906 Include a function pointer instead of a table index in the message to reduce
1907 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1908 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1910 2007-05-10 Simon Goldschmidt
1911 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1912 \ extern "C" {' in all header files. Now you can write your application using
1913 the lwIP stack in C++ and simply #include the core files. Note I have left
1914 out the netif/ppp/*h header files for now, since I don't know which files are
1915 included by applications and which are for internal use only.
1917 2007-05-09 Simon Goldschmidt
1918 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1919 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1920 situations where some compilers might inline the copy and save a function
1921 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1923 2007-05-08 Simon Goldschmidt
1924 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1925 to be overriden in case the C-library malloc implementation is not protected
1926 against concurrent access.
1928 2007-05-04 Simon Goldschmidt (Atte Kojo)
1929 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1930 multiple packets to the same host.
1932 2007-05-04 Frédéric Bernon, Jonathan Larmour
1933 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1934 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1935 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1936 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1937 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1938 these fields are now renamed "addr" & "port".
1940 2007-04-11 Jonathan Larmour
1941 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1942 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1943 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1944 by the port in sys_arch.h if desired.
1946 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1947 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1948 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1949 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1951 2007-04-05 Frédéric Bernon
1952 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1954 2007-04-04 Simon Goldschmidt
1955 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1956 use this for and architecture-independent form to tell the compiler you intentionally
1957 are not using this variable. Can be overriden in cc.h.
1959 2007-03-28 Frédéric Bernon
1960 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1961 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1962 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1963 It will be used by DHCP to register a client hostname, but can also be use when you call
1966 2007-03-28 Frédéric Bernon
1967 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1968 initialize a network interface's flag with. It tell this interface is an ethernet
1969 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1970 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1972 2007-03-26 Frédéric Bernon, Jonathan Larmour
1973 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1974 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1975 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1976 is done in tcpip_init function.
1978 2007-03-22 Frédéric Bernon
1979 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1980 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1981 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1982 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1983 but never used. Fix msg_in.c with the correct #if test for a stat display.
1985 2007-03-21 Kieran Mansley
1986 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1987 Provides callback on netif up/down state change.
1989 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1990 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1991 ip.c, netif.h, tcpip.c, opt.h:
1992 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1993 filter per all network interfaces. Declare a new function in netif to enable to
1994 control the MAC filter (to reduce lwIP traffic processing).
1996 2007-03-11 Frédéric Bernon
1997 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1998 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1999 unless you know what you're doing (default are RFC1122 compliant). Note
2000 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2002 2007-03-08 Frédéric Bernon
2003 * tcp.h: Keepalive values can be configured at compile time, but don't change
2004 this unless you know what you're doing (default are RFC1122 compliant).
2006 2007-03-08 Frédéric Bernon
2007 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2008 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2009 on UDP sockets/netconn.
2011 2007-03-08 Simon Goldschmidt
2012 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2014 2007-03-06 Frédéric Bernon
2015 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2016 Implement SO_RCVTIMEO on UDP sockets/netconn.
2018 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2019 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2020 on the stack and remove the API msg type from memp
2022 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2023 * sockets.h, sockets.c: Move socket initialization to new
2024 lwip_socket_init() function.
2025 NOTE: this changes the API with ports. Ports will have to be
2026 updated to call lwip_socket_init() now.
2028 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2029 * api_lib.c: Use memcpy in netbuf_copy_partial.
2034 2008-03-17 Frédéric Bernon, Ed Kerekes
2035 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2036 some problems to fill the IP header on some targets, use now the
2037 ip.h macros to do it).
2039 2008-03-13 Frédéric Bernon
2040 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2041 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2042 TCP connection caused a crash. Note that using (lwip_)recvfrom
2043 like this is a bit slow and that using (lwip)getpeername is the
2044 good lwip way to do it (so, using recv is faster on tcp sockets).
2046 2008-03-12 Frédéric Bernon, Jonathan Larmour
2047 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2048 recv_raw() does not consume data", and the ping sample (with
2049 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2050 returned the IP payload, without the IP header).
2052 2008-03-04 Jonathan Larmour
2053 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2054 and/or warnings on some systems where mem_size_t and size_t differ.
2055 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2057 2008-03-04 Kieran Mansley (contributions by others)
2058 * Numerous small compiler error/warning fixes from contributions to
2059 mailing list after 1.3.0 release candidate made.
2061 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2062 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2064 2008-01-15 Kieran Mansley
2065 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2066 prevented from sending by a small send window, not just a zero
2069 2008-01-09 Jonathan Larmour
2070 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2071 conflict with Linux system headers.
2073 2008-01-06 Jonathan Larmour
2074 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2075 address entirely on receiving a DHCPNAK, and restarting discovery.
2077 2007-12-21 Simon Goldschmidt
2078 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2079 is not protected" by using new macros for interlocked access to modify/test
2080 netconn->recv_avail.
2082 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2083 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2085 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2086 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2087 of silly window avoidance and prevent lwIP from shrinking the window)
2089 2007-12-04 Simon Goldschmidt
2090 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2091 data packet was lost): add assert that all segment lists are empty in
2092 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2093 state from LAST_ACK in tcp_process
2095 2007-12-02 Simon Goldschmidt
2096 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2097 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2098 has to be set to 0 in lwipopts.h
2100 2007-12-02 Simon Goldschmidt
2101 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2102 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2103 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2104 This is a fix for thread-safety and allocates all items needed for a netconn
2105 when the netconn is created.
2107 2007-11-30 Simon Goldschmidt
2108 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2109 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2110 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2111 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2113 2007-11-27 Simon Goldschmidt
2114 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2115 letting ip_route only use netifs that are up.
2117 2007-11-27 Simon Goldschmidt
2118 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2119 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2120 sockets block most operations once they have seen a fatal error.
2122 2007-11-27 Simon Goldschmidt
2123 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2124 netif to send as an argument (to be able to send on netifs that are down).
2126 2007-11-26 Simon Goldschmidt
2127 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2130 2007-11-21 Simon Goldschmidt
2131 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2132 Fixed the nagle algorithm; nagle now also works for all raw API applications
2133 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2135 2007-11-12 Frédéric Bernon
2136 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2137 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2138 context in do_getaddr.
2140 2007-11-10 Simon Goldschmidt
2141 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2142 happen any time). Now the packet simply isn't enqueued when out of memory.
2144 2007-11-01 Simon Goldschmidt
2145 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2146 TCP_MSS if that is smaller) as long as no MSS option is received from the
2149 2007-11-01 Simon Goldschmidt
2150 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2151 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2152 sending our configured TCP_MSS instead of the one received).
2154 2007-11-01 Simon Goldschmidt
2155 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2156 calculated based on the configured TCP_MSS, not on the MSS option received
2159 2007-10-09 Simon Goldschmidt
2160 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2161 short and also was generated wrong if checksum coverage != tot_len;
2162 receive: checksum was calculated wrong if checksum coverage != tot_len
2164 2007-10-08 Simon Goldschmidt
2165 * mem.c: lfree was not updated in mem_realloc!
2167 2007-10-07 Frédéric Bernon
2168 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2169 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2170 this change cause an API breakage for netconn_addr, since a parameter
2171 type change. Any compiler should cause an error without any changes in
2172 yours netconn_peer calls (so, it can't be a "silent change"). It also
2173 reduce a little bit the footprint for socket layer (lwip_getpeername &
2174 lwip_getsockname use now a common lwip_getaddrname function since
2175 netconn_peer & netconn_addr have the same parameters).
2177 2007-09-20 Simon Goldschmidt
2178 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2179 by checking tcp_tw_pcbs also
2181 2007-09-19 Simon Goldschmidt
2182 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2184 2007-09-15 Mike Kleshov
2185 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2187 2007-09-06 Frédéric Bernon
2188 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2189 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2190 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2191 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2193 2007-08-30 Frédéric Bernon
2194 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2195 and fix some coding style.
2197 2007-08-28 Frédéric Bernon
2198 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2199 kind of packets. These packets are considered like Ethernet packets (payload
2200 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2201 are considered like IP packets (payload pointing to iphdr).
2203 2007-08-27 Frédéric Bernon
2204 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2205 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2206 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2208 2007-08-24 Kieran Mansley
2209 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2210 compiler (Paradigm C++)
2212 2007-08-09 Frédéric Bernon, Bill Florac
2213 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2214 Introduce IGMP_STATS to centralize statistics management.
2216 2007-08-09 Frédéric Bernon, Bill Florac
2217 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2218 packet on a udp pcb binded on an netif's IP address, and not on "any".
2220 2007-08-09 Frédéric Bernon, Bill Florac
2221 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2222 This is mainly on using lookup/lookfor, and some coding styles...
2224 2007-07-26 Frédéric Bernon (and "thedoctor")
2225 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2227 2007-07-25 Simon Goldschmidt
2228 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2229 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2230 (tcp_output is called again later from tcp timers).
2232 2007-07-25 Simon Goldschmidt
2233 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2234 copy_from_pbuf, which illegally modified the given pbuf.
2236 2007-07-25 Simon Goldschmidt
2237 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2238 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2240 2007-07-24 Simon Goldschmidt
2241 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2242 correct state (must be CLOSED).
2244 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2245 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2246 allocation. It now returns NULL.
2248 2007-07-13 Frédéric Bernon
2249 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2252 2007-07-13 Frédéric Bernon
2253 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2254 because current code doesn't follow rawapi.txt documentation.
2256 2007-07-13 Kieran Mansley
2257 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2258 out of sequence processing of received packets
2260 2007-07-03 Simon Goldschmidt
2261 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2262 assumption is made that this pbuf is in one piece (i.e. not chained). These
2263 assumptions clash with the possibility of converting to fully pool-based
2264 pbuf implementations, where PBUF_RAM pbufs might be chained.
2266 2007-07-03 Simon Goldschmidt
2267 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2268 when closing tcp netconns: removed conn->sem, less context switches when
2269 closing, both netconn_close and netconn_delete should safely close tcp
2272 2007-07-02 Simon Goldschmidt
2273 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2274 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2275 to cache ARP table indices with each pcb instead of single-entry cache for
2278 2007-07-02 Simon Goldschmidt
2279 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2280 warnings when assigning to smaller types.
2282 2007-06-28 Simon Goldschmidt
2283 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2285 2007-06-28 Simon Goldschmidt
2286 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2287 a segment contained chained pbufs)
2289 2007-06-28 Frédéric Bernon
2290 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2291 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2292 possible to define this macro in your own lwipopts.h to always use C library's
2293 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2295 2007-06-28 Frédéric Bernon
2296 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2297 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2298 in api_lib/api_msg (use pointers and not type with table, etc...)
2300 2007-06-26 Simon Goldschmidt
2301 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2303 2007-06-25 Simon Goldschmidt
2304 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2305 for udp packets with no matching pcb.
2307 2007-06-25 Simon Goldschmidt
2308 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2309 could get udp input packets if the remote side matched.
2311 2007-06-13 Simon Goldschmidt
2312 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2313 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2315 2007-06-13 Simon Goldschmidt
2316 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2317 -> netconn_new_..() does not allocate a new connection for unsupported
2320 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2321 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2322 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2324 2007-06-13 Frédéric Bernon, Matthias Weisser
2325 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2326 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2327 some macro names collision with some OS macros.
2329 2007-06-11 Simon Goldschmidt
2330 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2331 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2332 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2335 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2336 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2337 where TCP flags wasn't initialized in tcp_keepalive.
2339 2007-06-03 Simon Goldschmidt
2340 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2341 registered, p->payload was modified without modifying p->len if sending
2342 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2344 2007-06-03 Simon Goldschmidt
2345 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2346 re-used the input pbuf even if that didn't have enough space to include the
2347 link headers. Now the space is tested and a new pbuf is allocated for the
2348 echo response packet if the echo request pbuf isn't big enough.
2350 2007-06-01 Simon Goldschmidt
2351 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2353 2007-05-23 Frédéric Bernon
2354 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2355 allocated by do_listen if success) and netconn_accept errors handling. In
2356 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2357 by ASSERT, except for netconn_delete.
2359 2007-05-23 Frédéric Bernon
2360 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2361 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2362 directly close the recvmbox).
2364 2007-05-22 Simon Goldschmidt
2365 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2366 bound but unconnected (and non-listening) tcp_pcbs.
2368 2007-05-22 Frédéric Bernon
2369 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2370 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2371 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2372 like "sys_timeout" in their application threads.
2374 2007-05-22 Frédéric Bernon
2375 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2376 which parameters are used by which do_xxx function, and to avoid "misusing"
2377 parameters (patch #5938).
2379 2007-05-22 Simon Goldschmidt
2380 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2381 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2382 is only 8 bits wide. This affects the api, as there, the protocol was
2385 2007-05-18 Simon Goldschmidt
2386 * memp.c: addition to patch #5913: smaller pointer was returned but
2387 memp_memory was the same size -> did not save memory.
2389 2007-05-16 Simon Goldschmidt
2390 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2393 2007-05-16 Simon Goldschmidt
2394 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2395 as the one of the netif used for sending to prevent sending from old
2396 addresses after a netif address gets changed (partly fixes bug #3168).
2398 2007-05-16 Frédéric Bernon
2399 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2400 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2401 tcpip_init) because we have to be sure that network interfaces are already
2402 added (mac filter is updated only in igmp_init for the moment).
2404 2007-05-16 Simon Goldschmidt
2405 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2406 into sys_arch_sem_wait calls to prevent timers from running while waiting
2407 for the heap. This fixes bug #19167.
2409 2007-05-13 Simon Goldschmidt
2410 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2411 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2414 2007-05-07 Simon Goldschmidt
2415 * mem.c: Another attempt to fix bug #17922.
2417 2007-05-04 Simon Goldschmidt
2418 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2419 implementation so that it can be reused (don't allocate the target
2420 pbuf inside pbuf_copy()).
2422 2007-05-04 Simon Goldschmidt
2423 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2424 to save a little RAM (next pointer of memp is not used while not in pool).
2427 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2430 2007-04-23 Simon Goldschmidt
2431 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2432 in NULL reference for incoming TCP packets". Loopif has to be configured
2433 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2434 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2435 putting packets on a list that is fed to the stack by calling loopif_poll()
2436 (single-thread / NO_SYS / polling environment where e.g.
2437 netif->input() = ip_input).
2439 2007-04-17 Jonathan Larmour
2440 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2441 the difference between two u16_t's.
2442 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2443 MEMP_NUM_NETCONN in sockets.c right now.
2445 2007-04-12 Jonathan Larmour
2446 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2448 2007-04-12 Kieran Mansley
2449 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2450 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2452 2007-04-11 Simon Goldschmidt
2453 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2454 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2455 pbuf.c: removed functions no needed any more (by etharp).
2457 2007-04-11 Kieran Mansley
2458 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2459 "Constant is long" warnings with 16bit compilers. Contributed by
2460 avatar@mmlab.cse.yzu.edu.tw
2462 2007-04-05 Frédéric Bernon, Jonathan Larmour
2463 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2464 the mailbox is active". Now, the post is only done during a connect, and do_send,
2465 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2467 2007-04-03 Frédéric Bernon
2468 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2469 packets. See patch #5834.
2471 2007-03-30 Frédéric Bernon
2472 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2473 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2475 2007-03-30 Frédéric Bernon
2476 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2477 others environment defines (these were too "generic").
2479 2007-03-28 Frédéric Bernon
2480 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2481 result and can cause a crash. lwip_send now check netbuf_ref result.
2483 2007-03-28 Simon Goldschmidt
2484 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2485 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2486 defined. This is the way it should have been already (looking at
2489 2007-03-28 Kieran Mansley
2490 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2491 IP and TCP headers *and* physical link headers
2493 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2494 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2495 to send some garbage. It is not a definitive solution, but the patch does solve
2496 the problem for most cases.
2498 2007-03-22 Frédéric Bernon
2499 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2501 2007-03-22 Frédéric Bernon
2502 * api_lib.c: somes resources couldn't be freed if there was errors during
2503 netconn_new_with_proto_and_callback.
2505 2007-03-22 Frédéric Bernon
2506 * ethernetif.c: update netif->input calls to check return value. In older ports,
2507 it's a good idea to upgrade them, even if before, there could be another problem
2508 (access to an uninitialized mailbox).
2510 2007-03-21 Simon Goldschmidt
2511 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2512 by casting to unsigned).
2514 2007-03-21 Frédéric Bernon
2515 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2516 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2517 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2518 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2519 faster and more reliable communication between api_lib and tcpip.
2521 2007-03-21 Frédéric Bernon
2522 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2524 2007-03-21 Frédéric Bernon
2525 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2527 2007-03-21 Kieran Mansley
2528 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2531 2007-03-21 Kieran Mansley
2532 * Fix all uses of pbuf_header to check the return value. In some
2533 cases just assert if it fails as I'm not sure how to fix them, but
2534 this is no worse than before when they would carry on regardless
2537 2007-03-21 Kieran Mansley
2538 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2539 comment out missing header include in icmp.c
2541 2007-03-20 Frédéric Bernon
2542 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2543 synchronized with memp.h.
2545 2007-03-20 Frédéric Bernon
2546 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2547 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2548 network interfaces. Also fix a compiler warning.
2550 2007-03-20 Kieran Mansley
2551 * udp.c: Only try and use pbuf_header() to make space for headers if
2552 not a ROM or REF pbuf.
2554 2007-03-19 Frédéric Bernon
2555 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2558 2007-03-19 Frédéric Bernon
2559 * Remove unimplemented "memp_realloc" function from memp.h.
2561 2007-03-11 Simon Goldschmidt
2562 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2565 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2566 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2567 (missing `const' qualifier in socket functions), to get more compatible to
2568 standard POSIX sockets.
2570 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2571 * sockets.c: Add asserts inside bind, connect and sendto to check input
2572 parameters. Remove excessive set_errno() calls after get_socket(), because
2573 errno is set inside of get_socket(). Move last sock_set_errno() inside
2576 2007-03-09 Simon Goldschmidt
2577 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2578 was allocated too small.
2580 2007-03-06 Simon Goldschmidt
2581 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2582 the stack from concurrent access.
2584 2007-03-06 Frédéric Bernon, Dmitry Potapov
2585 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2586 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2588 2007-03-06 Simon Goldschmidt
2589 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2590 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2592 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2593 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2594 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2595 Allow to do ARP processing for incoming packets inside tcpip_thread
2596 (protecting ARP layer against concurrent access). You can also disable
2597 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2598 Older ports have to use tcpip_ethinput.
2600 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2601 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2602 from pointer target type"
2604 2007-03-05 Frédéric Bernon
2605 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2606 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2608 2007-03-04 Frédéric Bernon
2609 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2612 2007-03-04 Frédéric Bernon
2613 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2615 The api_msg struct stay on the stack (not moved to netconn struct).
2617 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2618 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2619 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2620 Also fixed cast warning in pbuf_alloc()
2622 2007-03-04 Simon Goldschmidt
2623 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2624 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2626 2007-03-03 Frédéric Bernon
2627 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2628 It is static, and never used in udp.c except udp_init().
2630 2007-03-02 Simon Goldschmidt
2631 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2632 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2633 initialized before tcpip_thread is running (e.g. before OS is started)
2635 2007-03-02 Frédéric Bernon
2636 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2639 2007-02-28 Kieran Mansley
2640 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2641 outside the region of the pbuf by pbuf_header()
2643 2007-02-28 Kieran Mansley
2644 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2645 when supplied timeout is also non-zero
2649 2006-12-05 Leon Woestenberg
2650 * CHANGELOG: Mention STABLE-1.2.0 release.
2654 2006-12-01 Christiaan Simons
2655 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2656 Note this is a workaround. Currently I have no other options left.
2658 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2659 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2660 to include/lwip/opt.h.
2661 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2662 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2663 * opt.h: Add above new options.
2665 2006-08-18 Christiaan Simons
2666 * tcp_{in,out}.c: added SNMP counters.
2667 * ipv4/ip.c: added SNMP counters.
2668 * ipv4/ip_frag.c: added SNMP counters.
2670 2006-08-08 Christiaan Simons
2671 * etharp.{c,h}: added etharp_find_addr() to read
2672 (stable) ethernet/IP address pair from ARP table
2674 2006-07-14 Christiaan Simons
2675 * mib_structs.c: added
2676 * include/lwip/snmp_structs.h: added
2677 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2679 2006-07-06 Christiaan Simons
2680 * snmp/asn1_{enc,dec}.c added
2682 * snmp/msg_{in,out}.c added
2683 * include/lwip/snmp_asn1.h added
2684 * include/lwip/snmp_msg.h added
2685 * doc/snmp_agent.txt added
2687 2006-03-29 Christiaan Simons
2688 * inet.c, inet.h: Added platform byteswap support.
2689 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2690 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2694 2006-11-30 Christiaan Simons
2695 * dhcp.c: Fixed false triggers of request_timeout.
2697 2006-11-28 Christiaan Simons
2698 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2700 2006-10-11 Christiaan Simons
2701 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2702 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2703 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2704 identifier from 170 to 136 (bug #17574).
2706 2006-10-10 Christiaan Simons
2707 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2709 2006-08-17 Christiaan Simons
2710 * udp.c: Fixed bug #17200, added check for broadcast
2711 destinations for PCBs bound to a unicast address.
2713 2006-08-07 Christiaan Simons
2714 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2716 2006-06-27 Christiaan Simons
2717 * api_msg.c: Applied patch for cold case (bug #11135).
2718 In accept_function() ensure newconn->callback is always initialized.
2720 2006-06-15 Christiaan Simons
2721 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2722 facilitate printing of mem_size_t and u16_t statistics.
2724 2006-06-14 Christiaan Simons
2725 * api_msg.c: Applied patch #5146 to handle allocation failures
2726 in accept() by Kevin Lawson.
2728 2006-05-26 Christiaan Simons
2729 * api_lib.c: Removed conn->sem creation and destruction
2730 from netconn_write() and added sys_sem_new to netconn_new_*.
2734 2006-03-03 Christiaan Simons
2735 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2736 access and added pbuf_alloc() return value checks.
2738 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2739 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2740 now handled by the checksum routine properly.
2742 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2743 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2744 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2746 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2747 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2748 submitted by Mitrani Hiroshi.
2750 2005-12-15 Christiaan Simons
2751 * inet.c: Disabled the added summing routine to preserve code space.
2753 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2754 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2755 Added Curt McDowell's optimized checksumming routine for future
2756 inclusion. Need to create test case for unaliged, aligned, odd,
2757 even length combination of cases on various endianess machines.
2759 2005-12-09 Christiaan Simons
2760 * inet.c: Rewrote standard checksum routine in proper portable C.
2762 2005-11-25 Christiaan Simons
2763 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2764 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2765 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2767 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2768 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2769 routine by Peter Jolasson.
2770 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2772 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2773 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2774 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2776 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2777 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2779 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2780 * udp.c: UDP pcb->recv() was called even when it was NULL.
2784 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2785 * etharp.*: Disabled multiple packets on the ARP queue.
2786 This clashes with TCP queueing.
2788 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2789 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2790 Halved the ARP period, doubled the period counts.
2791 ETHARP_MAX_PENDING now should be at least 2. This prevents
2792 the counter from reaching 0 right away (which would allow
2793 too little time for ARP responses to be received).
2795 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2796 * dhcp.c: Decline messages were not multicast but unicast.
2797 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2798 Do not try hard to insert arbitrary packet's source address,
2799 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2800 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2801 querying an address will see it appear in the cache (DHCP could
2802 suffer from this when a server invalidly gave an in-use address.)
2803 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2804 comparing network addresses (identifiers), not the network masks
2806 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2807 IP address actually belongs to the network of the given interface.
2809 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2810 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2814 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2815 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2816 even if one is already pending, if the rcv_wnd is above a threshold
2817 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2818 delayed ACK in order to open the window if the stack is only receiving data.
2820 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2821 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2823 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2824 * etharp.c: Make sure the first pbuf queued on an ARP entry
2825 is properly ref counted.
2827 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2828 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2829 warnings about comparison.
2830 * pbuf.c: Stopped compiler complaining of empty if statement
2831 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2832 * tcp.c: Stopped compiler complaining of empty if statement
2833 when LWIP_DEBUGF() empty.
2834 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2835 * inet.c: Added a couple of casts to quiet the compiler.
2836 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2838 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2839 * inet.c: Made data types consistent in inet_ntoa().
2840 Added casts for return values of checksum routines, to pacify compiler.
2841 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2842 Small corrections to some debugging statements, to pacify compiler.
2844 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2845 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2846 * ethernetif.c Updated low_level_output() to match prototype for
2847 netif->linkoutput and changed low_level_input() similarly for consistency.
2848 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2849 of raw_recv() in raw.h and so avoid compiler error.
2850 * sockets.c: Added trivial (int) cast to keep compiler happier.
2851 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2857 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2858 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2859 your cc.h file defines this either 1 or 0. If non-defined,
2861 * .c: Added <string.h> and <errno.h> includes where used.
2862 * etharp.c: Made some array indices unsigned.
2864 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2865 * netif.*: Added netif_set_up()/down().
2866 * dhcp.c: Changes to restart program flow.
2868 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2869 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2870 single-pass lookup for different candidates. Should exploit locality.
2872 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2873 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2874 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2875 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2876 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2880 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2881 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2882 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2883 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2884 is to prefix the 14-bit Ethernet headers with two padding bytes.
2886 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2887 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2888 * etharp.c: Fixed the case where the packet that initiates the ARP request
2889 is not queued, and gets lost. Fixed the case where the packets destination
2890 address is already known; we now always queue the packet and perform an ARP
2897 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2898 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2899 * Fixed two possible NULL references in rare cases.
2905 * Fixed DHCP which did not include the IP address in DECLINE messages.
2909 * etharp.c has been hauled over a bit.
2915 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2916 * Packets sent from ARP queue had invalid source hardware address.
2920 * Pass-by ARP requests do now update the cache.
2924 * No longer dependent on ctype.h.
2925 * New socket options.
2926 * Raw IP pcb support.
2932 * Some debug formatters and casts fixed.
2933 * Numereous fixes in PPP.
2937 * DEBUGF now is LWIP_DEBUGF
2938 * pbuf_dechain() has been re-enabled.
2939 * Mentioned the changed use of CVS branches in README.
2945 * Fixed pool pbuf memory leak in pbuf_alloc().
2946 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2947 Reported by Savin Zlobec.
2949 * PBUF_POOL chains had their tot_len field not set for non-first
2950 pbufs. Fixed in pbuf_alloc().
2954 * Added PPP stack contributed by Marc Boucher
2958 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2960 * ARP queueuing now queues the latest packet instead of the first.
2961 This is the RFC recommended behaviour, but can be overridden in
2968 * TCP has been fixed to deal with the new use of the pbuf->ref
2971 * DHCP dhcp_inform() crash bug fixed.
2975 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2976 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2977 Implemented by David Haas.
2983 * The packet buffer implementation has been enhanced to support
2984 zero-copy and copy-on-demand for packet buffers which have their
2985 payloads in application-managed memory.
2986 Implemented by David Haas.
2988 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2989 if an outgoing packet can be directly sent on the link, or perform
2990 a copy-on-demand when necessary.
2992 The application can safely assume the packet is sent, and the RAM
2993 is available to the application directly after calling udp_send()
2994 or similar function.
2998 * ARP_QUEUEING should now correctly work for all cases, including
3000 Implemented by Leon Woestenberg.
3004 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3005 to a '0.0.0.0' IP address.
3007 * The packet buffer implementation is changed. The pbuf->ref counter
3008 meaning has changed, and several pbuf functions have been
3009 adapted accordingly.
3011 * netif drivers have to be changed to set the hardware address length field
3012 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3013 See the contrib/ports/c16x cs8900 driver as a driver example.
3015 * netif's have a dhcp field that must be initialized to NULL by the driver.
3016 See the contrib/ports/c16x cs8900 driver as a driver example.
3018 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3019 logged in CVS but have not been explained here.
3021 (0.5.3) Changes since version 0.5.2
3025 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3026 threads because it wasn't protected by semaphores.
3030 * struct ip_addr now packed.
3032 * The name of the time variable in arp.c has been changed to ctime
3033 to avoid conflicts with the time() function.
3035 (0.5.2) Changes since version 0.5.1
3039 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3043 * A bug in tcp_parseopt() could cause the stack to hang because of a
3044 malformed TCP option.
3046 * The address of new connections in the accept() function in the BSD
3047 socket library was not handled correctly.
3049 * pbuf_dechain() did not update the ->tot_len field of the tail.
3051 * Aborted TCP connections were not handled correctly in all
3056 * All protocol header structs are now packed.
3058 * The ->len field in the tcp_seg structure now counts the actual
3059 amount of data, and does not add one for SYN and FIN segments.
3061 (0.5.1) Changes since version 0.5.0
3065 * Possible to run as a user process under Linux.
3067 * Preliminary support for cross platform packed structs.
3069 * ARP timer now implemented.
3073 * TCP output queue length was badly initialized when opening
3076 * TCP delayed ACKs were not sent correctly.
3078 * Explicit initialization of BSS segment variables.
3080 * read() in BSD socket library could drop data.
3082 * Problems with memory alignment.
3084 * Situations when all TCP buffers were used could lead to
3087 * TCP MSS option wasn't parsed correctly.
3089 * Problems with UDP checksum calculation.
3091 * IP multicast address tests had endianess problems.
3093 * ARP requests had wrong destination hardware address.
3097 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3099 * A ->linkoutput() member was added to struct netif.
3101 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3103 * ntoh* macros are now null definitions for big endian CPUs.
3105 (0.5.0) Changes since version 0.4.2
3109 * Redesigned operating system emulation layer to make porting easier.
3111 * Better control over TCP output buffers.
3113 * Documenation added.
3117 * Locking issues in buffer management.
3119 * Bugfixes in the sequential API.
3121 * IP forwarding could cause memory leakage. This has been fixed.
3125 * Directory structure somewhat changed; the core/ tree has been
3128 (0.4.2) Changes since version 0.4.1
3132 * Experimental ARP implementation added.
3134 * Skeleton Ethernet driver added.
3136 * Experimental BSD socket API library added.
3140 * In very intense situations, memory leakage could occur. This has
3145 * Variables named "data" and "code" have been renamed in order to
3146 avoid name conflicts in certain compilers.
3148 * Variable++ have in appliciable cases been translated to ++variable
3149 since some compilers generate better code in the latter case.
3151 (0.4.1) Changes since version 0.4
3155 * TCP: Connection attempts time out earlier than data
3156 transmissions. Nagle algorithm implemented. Push flag set on the
3157 last segment in a burst.
3159 * UDP: experimental support for UDP-Lite extensions.
3163 * TCP: out of order segments were in some cases handled incorrectly,
3164 and this has now been fixed. Delayed acknowledgements was broken
3165 in 0.4, has now been fixed. Binding to an address that is in use
3166 now results in an error. Reset connections sometimes hung an
3167 application; this has been fixed.
3169 * Checksum calculation sometimes failed for chained pbufs with odd
3170 lengths. This has been fixed.
3172 * API: a lot of bug fixes in the API. The UDP API has been improved
3173 and tested. Error reporting and handling has been
3174 improved. Logical flaws and race conditions for incoming TCP
3175 connections has been found and removed.
3177 * Memory manager: alignment issues. Reallocating memory sometimes
3178 failed, this has been fixed.
3180 * Generic library: bcopy was flawed and has been fixed.
3184 * API: all datatypes has been changed from generic ones such as
3185 ints, to specified ones such as u16_t. Functions that return
3186 errors now have the correct type (err_t).
3188 * General: A lot of code cleaned up and debugging code removed. Many
3189 portability issues have been fixed.
3191 * The license was changed; the advertising clause was removed.
3195 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3196 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3199 (0.4) Changes since version 0.3.1
3201 * Memory management has been radically changed; instead of
3202 allocating memory from a shared heap, memory for objects that are
3203 rapidly allocated and deallocated is now kept in pools. Allocation
3204 and deallocation from those memory pools is very fast. The shared
3205 heap is still present but is used less frequently.
3207 * The memory, memory pool, and packet buffer subsystems now support
3208 4-, 2-, or 1-byte alignment.
3210 * "Out of memory" situations are handled in a more robust way.
3212 * Stack usage has been reduced.
3214 * Easier configuration of lwIP parameters such as memory usage,
3215 TTLs, statistics gathering, etc. All configuration parameters are
3216 now kept in a single header file "lwipopts.h".
3218 * The directory structure has been changed slightly so that all
3219 architecture specific files are kept under the src/arch
3222 * Error propagation has been improved, both in the protocol modules
3225 * The code for the RTXC architecture has been implemented, tested
3228 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3229 the Internet checksum modules.
3231 * Bugs related to porting between a 32-bit and a 16-bit architecture
3232 have been found and corrected.
3234 * The license has been changed slightly to conform more with the
3235 original BSD license, including the advertisement clause.
3237 (0.3.1) Changes since version 0.3
3239 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3240 RAM never returned the RAM when the pbuf was deallocated.
3242 * TCP congestion control, window updates and retransmissions did not
3243 work correctly. This has now been fixed.
3245 * Bugfixes in the API.
3247 (0.3) Changes since version 0.2
3249 * New and improved directory structure. All include files are now
3250 kept in a dedicated include/ directory.
3252 * The API now has proper error handling. A new function,
3253 netconn_err(), now returns an error code for the connection in
3256 * Improvements in the memory management subsystem. The system now
3257 keeps a pointer to the lowest free memory block. A new function,
3258 mem_malloc2() tries to allocate memory once, and if it fails tries
3259 to free some memory and retry the allocation.
3261 * Much testing has been done with limited memory
3262 configurations. lwIP now does a better job when overloaded.
3264 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3266 * Many bugfixes in the TCP code:
3268 - Fixed a bug in tcp_close().
3270 - The TCP receive window was incorrectly closed when out of
3271 sequence segments was received. This has been fixed.
3273 - Connections are now timed-out of the FIN-WAIT-2 state.
3275 - The initial congestion window could in some cases be too
3276 large. This has been fixed.
3278 - The retransmission queue could in some cases be screwed up. This
3281 - TCP RST flag now handled correctly.
3283 - Out of sequence data was in some cases never delivered to the
3284 application. This has been fixed.
3286 - Retransmitted segments now contain the correct acknowledgment
3287 number and advertised window.
3289 - TCP retransmission timeout backoffs are not correctly computed
3290 (ala BSD). After a number of retransmissions, TCP now gives up
3293 * TCP connections now are kept on three lists, one for active
3294 connections, one for listening connections, and one for
3295 connections that are in TIME-WAIT. This greatly speeds up the fast
3296 timeout processing for sending delayed ACKs.
3298 * TCP now provides proper feedback to the application when a
3299 connection has been successfully set up.
3301 * More comments have been added to the code. The code has also been
3302 somewhat cleaned up.
3304 (0.2) Initial public release.