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
80 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
81 (introduced when fixing bug# 33551)
83 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
84 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
86 2012-02-15: Simon Goldschmidt
87 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
90 2012-02-12: Simon Goldschmidt
91 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
92 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
94 2012-02-11: Simon Goldschmidt
95 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
98 2012-01-22: Simon Goldschmidt
99 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
101 2012-01-21: Simon Goldschmidt
102 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
104 2012-01-20: Simon Goldschmidt
105 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
107 2012-01-20: Simon Goldschmidt
108 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
110 2011-11-25: Simon Goldschmidt
111 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
112 tcp_active_pcbs in some cases
114 2011-11-23: Simon Goldschmidt
115 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
118 2011-11-22: Simon Goldschmidt
119 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
120 netif is brought down
122 2011-10-28: Simon Goldschmidt
123 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
125 2011-10-23: Simon Goldschmidt
126 * mem.c: fixed bug #34429: possible memory corruption with
127 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
129 2011-10-18: Simon Goldschmidt
130 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
133 2011-10-18: Simon Goldschmidt
134 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
135 windows (bug #34176 select after non-blocking send times out)
137 2011-10-18: Simon Goldschmidt
138 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
139 consider netif->mtu, causes slow network
141 2011-10-18: Simon Goldschmidt
142 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
144 2011-10-18: Simon Goldschmidt
145 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
147 2011-10-17: Simon Goldschmidt
148 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
150 2011-10-13: Simon Goldschmidt
151 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
152 zero window is received) by starting the persist timer when a zero window is
153 received, not when we have more data queued for sending than fits into the
156 2011-10-13: Simon Goldschmidt
157 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
159 2011-10-13: Simon Goldschmidt
160 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
161 used and not all protocols are enabled
163 2011-10-12: Simon Goldschmidt
164 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
166 2011-10-09: Simon Goldschmidt
167 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
168 byte value when pcb->unacked != NULL
170 2011-10-09: Simon Goldschmidt
171 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
173 2011-09-27: Simon Goldschmidt
174 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
176 2011-09-27: Simon Goldschmidt
177 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
179 2011-09-27: Simon Goldschmidt
180 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
182 2011-09-24: Simon Goldschmidt
183 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
185 2011-09-23: Simon Goldschmidt
186 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
187 the last packet including FIN can lose data
189 2011-09-22: Simon Goldschmidt
190 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
193 2011-09-21: Simon Goldschmidt
194 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
197 2011-09-20: Simon Goldschmidt
198 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
200 2011-09-11: Simon Goldschmidt
201 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
204 2011-09-09: Simon Goldschmidt
205 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
208 2011-09-03: Simon Goldschmidt
209 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
210 is aggregated and sent to application
212 2011-09-01: Simon Goldschmidt
213 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
216 2011-09-01: Simon Goldschmidt
217 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
219 2011-08-24: Simon Goldschmidt
220 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
222 2011-08-24: Simon Goldschmidt
223 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
224 accept() on UDP connections
226 2011-08-24: Simon Goldschmidt
227 * sockets.h: fixed bug #34057 socklen_t should be a typedef
229 2011-08-24: Simon Goldschmidt
230 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
232 2011-08-24: Simon Goldschmidt
233 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
235 2011-08-24: Simon Goldschmidt
236 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
238 2011-08-22: Simon Goldschmidt
239 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
240 merely prevents nagle from not transmitting fast after closing.)
242 2011-07-22: Simon Goldschmidt
243 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
244 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
245 lwip_send() sends as much as possible for non-blocking sockets
247 2011-07-22: Simon Goldschmidt
248 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
249 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
250 at regular intervals from main level.
252 2011-07-21: Simon Goldschmidt
253 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
254 sending an ARP request when an ARP entry is used in the last minute before
257 2011-07-04: Simon Goldschmidt
258 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
260 2011-06-26: Simon Goldschmidt
261 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
262 updating its documentation only.
264 2011-06-26: Simon Goldschmidt
265 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
268 2011-06-26: Simon Goldschmidt
269 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
277 2011-03-27: Simon Goldschmidt
278 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
279 calculate it in tcp_zero_window_probe (the only place where it was used).
281 2010-11-21: Simon Goldschmidt
282 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
285 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
286 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
287 IP_MULTICAST_LOOP at socket- and raw-API level.
289 2010-06-16: Simon Goldschmidt
290 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
291 link-layer-addressed UDP traffic to be received while a netif is down (just
292 like DHCP during configuration)
294 2010-05-22: Simon Goldschmidt
295 * many many files: bug #27352: removed packing from ip_addr_t, the packed
296 version is now only used in protocol headers. Added global storage for
297 current src/dest IP address while in input functions.
299 2010-05-16: Simon Goldschmidt
300 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
301 calculation (and use them throughout the stack where applicable)
303 2010-05-16: Simon Goldschmidt
304 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
305 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
307 2010-05-16: Simon Goldschmidt
308 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
309 MEMP pool instead of the heap
311 2010-05-13: Simon Goldschmidt
312 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
313 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
314 packets to more than one pcb.
316 2010-05-02: Simon Goldschmidt
317 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
318 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
320 2010-04-30: Simon Goldschmidt
321 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
322 take a precalculated checksum, added pbuf_fill_chksum() to copy data
323 into a pbuf and at the same time calculating the checksum for that data
325 2010-04-29: Simon Goldschmidt
326 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
327 2-byte-aligned IP addresses and MAC addresses
329 2010-04-28: Patch by Bill Auerbach
330 * ip.c: Inline generating IP checksum to save a function call
332 2010-04-14: Simon Goldschmidt
333 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
334 tcpip_thread processes messages or timeouts to implement a watchdog.
336 2010-03-28: Simon Goldschmidt
337 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
338 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
340 2010-03-27: Simon Goldschmidt
341 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
342 etharp_query to prevent unnecessary function calls (inspired by
345 2010-03-20: Simon Goldschmidt
346 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
347 since the linker cannot do this automatically to save space.
349 2010-03-20: Simon Goldschmidt
350 * opt.h, etharp.c/.h: Added support for static ARP table entries
352 2010-03-14: Simon Goldschmidt
353 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
354 when creating TCP segments, not when (re-)transmitting them.
356 2010-03-07: Simon Goldschmidt
357 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
358 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
359 This should speed up receiving data on sockets as the select code in
360 event_callback is only executed when select is waiting.
362 2010-03-06: Simon Goldschmidt
363 * tcp_out.c: task #7013 (Create option to have all packets delivered to
364 netif->output in one piece): Always copy to try to create single pbufs
367 2010-03-06: Simon Goldschmidt
368 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
369 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
370 for tcp netconns to receive pbufs, not netbufs; use that function
373 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
374 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
375 Work on tcp_enqueue: Don't waste memory when chaining segments,
376 added option TCP_OVERSIZE to prevent creating many small pbufs when
377 calling tcp_write with many small blocks of data. Instead, pbufs are
378 allocated larger than needed and the space is used for later calls to
381 2010-02-21: Simon Goldschmidt
382 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
385 2010-02-21: Simon Goldschmidt
386 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
387 implementation of tcp to make API usage cleare to application programmers
389 2010-02-14: Simon Goldschmidt/Stephane Lesage
390 * ip_addr.h: Improved some defines working on ip addresses, added faster
391 macro to copy addresses that cannot be NULL
393 2010-02-13: Simon Goldschmidt
394 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
395 blocking send operation)
397 2010-02-12: Simon Goldschmidt
398 * sockets.c/.h: Added a minimal version of posix fctl() to have a
399 standardised way to set O_NONBLOCK for nonblocking sockets.
401 2010-02-12: Simon Goldschmidt
402 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
403 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
404 and dhcp work with user-allocated structs instead of callin mem_malloc
406 2010-02-12: Simon Goldschmidt/Jeff Barber
407 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
408 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
410 2010-02-12: Simon Goldschmidt
411 * sys layer: task #10139 (Prefer statically allocated memory): converted
412 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
413 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
414 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
415 to let sys.h use binary semaphores instead of mutexes - as before)
417 2010-02-09: Simon Goldschmidt (Simon Kallweit)
418 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
419 (Restart system timeout handling)
421 2010-02-09: Simon Goldschmidt
422 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
423 netif.c) - loopif does not have to be created by the port any more,
424 just define LWIP_HAVE_LOOPIF to 1.
426 2010-02-08: Simon Goldschmidt
427 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
428 inet_ntoa_r/ipaddr_ntoa_r
430 2010-02-08: Simon Goldschmidt
431 * netif.h: Added netif_s/get_igmp_mac_filter() macros
433 2010-02-05: Simon Goldschmidt
434 * netif.h: Added function-like macros to get/set the hostname on a netif
436 2010-02-04: Simon Goldschmidt
437 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
438 make changing the actual implementation behind the typedef easier.
440 2010-02-01: Simon Goldschmidt
441 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
442 for allocating memory when getaddrinfo() is called.
444 2010-01-31: Simon Goldschmidt
445 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
446 them once instead of parsing for every option. This also removes
447 the need for mem_malloc from dhcp_recv and makes it possible to
448 correctly retrieve the BOOTP file.
450 2010-01-30: simon Goldschmidt
451 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
454 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
455 * api.h, api_msg.c, sockets.c: Added except set support in select
458 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
459 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
460 Add non-blocking support for connect (partly from patch #6860),
461 plus many cleanups in socket & netconn API.
463 2010-01-27: Simon Goldschmidt
464 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
465 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
467 2010-01-26: Simon Goldschmidt
468 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
470 2010-01-14: Simon Goldschmidt
471 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
472 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
474 2010-01-13: Simon Goldschmidt
475 * mem.c: The heap now may be moved to user-defined memory by defining
476 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
477 (patch #6966 and bug #26133)
479 2010-01-10: Simon Goldschmidt (Bill Auerbach)
480 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
483 2010-01-10: Simon Goldschmidt
484 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
485 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
487 2009-12-31: Simon Goldschmidt
488 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
489 added timers.c/.h: Separated timer implementation from semaphore/mbox
490 implementation, moved timer implementation to timers.c/.h, timers are
491 now only called from tcpip_thread or by explicitly checking them.
494 2009-12-27: Simon Goldschmidt
495 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
496 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
501 2011-04-20: Simon Goldschmidt
502 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
504 2011-04-13: Simon Goldschmidt
505 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
506 using ports in the IANA private/dynamic range (49152 through 65535).
508 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
509 * etharp.h/.c: Fixed broken VLAN support.
511 2011-03-27: Simon Goldschmidt
512 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
513 pcbs) by checking if the pcb was bound (local_port != 0).
515 2011-03-27: Simon Goldschmidt
516 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
518 2011-03-27: Simon Goldschmidt
519 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
520 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
522 2011-03-27: Simon Goldschmidt
523 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
524 is present never times out) by starting retransmission timer before checking
527 2011-03-22: Simon Goldschmidt
528 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
529 calling sio_read_abort() if the file descriptor is valid.
531 2011-03-14: Simon Goldschmidt
532 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
533 more than once can render a socket useless) since it mainly involves changing
534 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
536 2011-03-13: Simon Goldschmidt
537 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
538 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
539 use EALRADY instead of -1
541 2011-03-13: Simon Goldschmidt
542 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
543 connection has been aborted by err_tcp (since this is not a normal closing
546 2011-03-13: Simon Goldschmidt
547 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
548 with pcb->state != CLOSED
550 2011-02-17: Simon Goldschmidt
551 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
554 2011-02-17: Simon Goldschmidt
555 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
557 2011-01-24: Simon Goldschmidt
558 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
560 2010-12-02: Simon Goldschmidt
561 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
563 2010-11-23: Simon Goldschmidt
564 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
565 LWIP_SO_RCVBUF and ioctl/FIONREAD.
567 2010-11-23: Simon Goldschmidt
568 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
569 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
571 2010-11-23: Simon Goldschmidt
572 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
573 refusing 'refused_data' again.
575 2010-11-22: Simon Goldschmidt
576 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
577 after a successful nonblocking connection.
579 2010-11-22: Simon Goldschmidt
580 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
581 must be sent link-local
583 2010-11-22: Simon Goldschmidt
584 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
587 2010-11-20: Simon Goldschmidt
588 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
590 2010-11-20: Simon Goldschmidt
591 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
592 resemble other stacks.
594 2010-11-20: Simon Goldschmidt
595 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
596 no-copy TCP writes will never succeed.
598 2010-11-20: Simon Goldschmidt
599 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
600 not match documentation: return ERR_ARG instead of ERR_VAL if not
601 initialized or wrong argument.
603 2010-10-20: Simon Goldschmidt
604 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
606 2010-10-05: Simon Goldschmidt
607 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
608 replugging the network cable after an AutoIP address was assigned.
610 2010-08-10: Simon Goldschmidt
611 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
613 2010-08-03: Simon Goldschmidt
614 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
616 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
617 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
618 endian architectures)
620 2010-07-28: Simon Goldschmidt
621 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
624 2010-07-27: Simon Goldschmidt
625 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
626 harm but never did anything
628 2010-07-21: Simon Goldschmidt
629 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
632 2010-07-16: Kieran Mansley
633 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
635 2010-07-10: Simon Goldschmidt
636 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
638 2010-06-30: Simon Goldschmidt
639 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
642 2010-06-28: Kieran Mansley
643 * timers.c remove unportable printing of C function pointers
645 2010-06-24: Simon Goldschmidt
646 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
647 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
649 2010-06-24: Simon Goldschmidt
650 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
651 implemented shutdown at socket level.
653 2010-06-21: Simon Goldschmidt
654 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
655 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
656 custom pbufs that reference other (original) pbufs. Additionally set
657 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
659 2010-06-15: Simon Goldschmidt
660 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
662 2010-06-14: Simon Goldschmidt
663 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
665 2010-06-12: Simon Goldschmidt
666 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
669 2010-05-17: Simon Goldschmidt
670 * netdb.c: Correctly NULL-terminate h_addr_list
672 2010-05-16: Simon Goldschmidt
673 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
674 "symbol already defined" i.e. when linking to winsock
676 2010-05-05: Simon Goldschmidt
677 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
680 2010-04-21: Simon Goldschmidt
681 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
684 2010-03-28: Luca Ceresoli
685 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
687 2010-03-27: Luca Ceresoli
688 * mib2.c: patch #7130: remove meaningless const qualifiers
690 2010-03-26: Simon Goldschmidt
691 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
693 2010-03-26: Simon Goldschmidt
694 * various files: Fixed compiling with different options disabled (TCP/UDP),
695 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
697 2010-03-25: Simon Goldschmidt
698 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
700 2010-03-25: Simon Goldschmidt
701 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
702 overrunning our rcv_wnd in ooseq case.
704 2010-03-22: Simon Goldschmidt
705 * tcp.c: tcp_listen() did not copy the pcb's prio.
707 2010-03-19: Simon Goldschmidt
708 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
710 2010-03-14: Simon Goldschmidt
711 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
712 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
713 and basing PBUF_LINK_HLEN on it.
715 2010-03-08: Simon Goldschmidt
716 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
717 when assiging routable address): when checking incoming packets and
718 aborting existing connection on address change, filter out link-local
721 2010-03-06: Simon Goldschmidt
722 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
724 2010-03-06: Simon Goldschmidt
725 * ipv4/ip.c: Don't try to forward link-local addresses
727 2010-03-06: Simon Goldschmidt
728 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
731 2010-03-05: Simon Goldschmidt
732 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
735 2010-03-05: Simon Goldschmidt
736 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
737 into multiple calls to tcp_write.
739 2010-02-21: Simon Goldschmidt
740 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
741 the implementation of DNS_USES_STATIC_BUF==1)
743 2010-02-20: Simon Goldschmidt
744 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
745 close() vs. shutdown(). Now the application does not get any more
746 recv callbacks after calling tcp_close(). Added tcp_shutdown().
748 2010-02-19: Simon Goldschmidt
749 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
750 confusion with realloc()
752 2010-02-15: Simon Goldschmidt/Stephane Lesage
753 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
756 2010-02-14: Simon Goldschmidt
757 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
758 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
759 admin-status of a netif are up
761 2010-02-14: Simon Goldschmidt
762 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
763 reception and is not really necessary
765 2010-02-14: Simon Goldschmidt
766 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
767 request was directed as us (RFC 826, Packet Reception), otherwise
768 only update existing entries; internalized some functions
770 2010-02-14: Simon Goldschmidt
771 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
772 disabled on netif used for PPPoE) by adding a new netif flag
773 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
774 device but prevents usage of ARP (so that ethernet_input can be used
777 2010-02-12: Simon Goldschmidt
778 * netif.c: netif_set_link_up/down: only do something if the link state
781 2010-02-12: Simon Goldschmidt/Stephane Lesage
782 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
785 2010-02-12: Simon Goldschmidt
786 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
788 2010-02-09: Simon Goldschmidt
789 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
790 (recv() makes receive window update for data that wasn't received by
793 2010-02-09: Simon Goldschmidt/Stephane Lesage
794 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
795 or any netconn_recv() error)
797 2010-02-09: Simon Goldschmidt
798 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
800 2010-02-09: Simon Goldschmidt
801 * netif.c: For loopback packets, adjust the stats- and snmp-counters
802 for the loopback netif.
804 2010-02-08: Simon Goldschmidt
805 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
806 since they are not used anywhere else.
808 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
809 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
810 (patch from bug #28798)
812 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
813 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
814 another bug when LWIP_RAND() returns zero.
816 2010-02-04: Simon Goldschmidt
817 * nearly every file: Use macros defined in ip_addr.h (some of them new)
818 to work with IP addresses (preparation for bug #27352 - Change ip_addr
819 from struct to typedef (u32_t) - and better code).
821 2010-01-31: Simon Goldschmidt
822 * netif.c: Don't call the link-callback from netif_set_up/down() since
823 this invalidly retriggers DHCP.
825 2010-01-29: Simon Goldschmidt
826 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
827 portability file inet.h and its contents from the stack: moved htonX-
828 functions to def.h (and the new def.c - they are not ipv4 dependent),
829 let inet.h depend on ip_addr.h and not the other way round.
830 This fixes bug #28732.
832 2010-01-28: Kieran Mansley
833 * tcp.c: Ensure ssthresh >= 2*MSS
835 2010-01-27: Simon Goldschmidt
836 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
837 callback can lead to accessing unallocated memory. As a consequence,
838 ERR_ABRT means the application has called tcp_abort()!
840 2010-01-25: Simon Goldschmidt
841 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
842 not implemented in SNMP): write-only or not-accessible are still
843 returned by getnext (though not by get)
845 2010-01-24: Simon Goldschmidt
846 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
847 not use reserved C/C++ keywords
849 2010-01-23: Simon Goldschmidt
850 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
853 2010-01-21: Simon Goldschmidt
854 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
855 if tcp_enqueue fails) both in raw- and netconn-API
857 2010-01-19: Simon Goldschmidt
858 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
860 2010-01-18: Iordan Neshev/Simon Goldschmidt
861 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
862 bugfix backports from 2.4.x.
864 2010-01-18: Simon Goldschmidt
865 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
867 2010-01-17: Simon Goldschmidt
868 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
869 task #10102: "netconn: clean up conn->err threading issues" by adding
870 error return value to struct api_msg_msg
872 2010-01-17: Simon Goldschmidt
873 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
874 to return err_t (bugs #27709 and #28087)
876 2010-01-14: Simon Goldschmidt
877 * ...: Use typedef for function prototypes throughout the stack.
879 2010-01-13: Simon Goldschmidt
880 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
881 window = 0) by correctly draining recvmbox/acceptmbox
883 2010-01-11: Simon Goldschmidt
884 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
885 erroneous callbacks) by copying the code from recent pppd
887 2010-01-10: Simon Goldschmidt
888 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
890 2010-01-10: Simon Goldschmidt
891 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
893 2010-01-08: Simon Goldschmidt
894 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
896 2010-01-08: Simon Goldschmidt
897 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
898 passed to dns_local_addhost() might be volatile
900 2010-01-07: Simon Goldschmidt
901 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
903 2010-01-06: Simon Goldschmidt
904 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
906 2009-12-31: Simon Goldschmidt
907 * many ppp files: Reorganised PPP source code from ucip structure to pppd
908 structure to easily compare our code against the pppd code (around v2.3.1)
910 2009-12-27: Simon Goldschmidt
911 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
919 2009-10-27 Simon Goldschmidt/Stephan Lesage
920 * netifapi.c/.h: Added netifapi_netif_set_addr()
922 2009-10-07 Simon Goldschmidt/Fabian Koch
923 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
924 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
926 2009-08-26 Simon Goldschmidt/Simon Kallweit
927 * slipif.c/.h: bug #26397: SLIP polling support
929 2009-08-25 Simon Goldschmidt
930 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
931 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
933 2009-08-25 Simon Goldschmidt
934 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
936 2009-08-24 Jakob Stoklund Olesen
937 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
938 to netif_set_link_up().
940 2009-08-23 Simon Goldschmidt
941 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
942 to a human-readable string.
946 2009-12-24: Kieran Mansley
947 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
950 2009-12-06: Simon Goldschmidt
951 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
952 be statically allocated (like in ucip)
954 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
955 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
957 2009-12-03: Simon Goldschmidt
958 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
959 could have non-zero length
961 2009-12-02: Simon Goldschmidt
962 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
963 tcp_input_pcb until after calling the pcb's callbacks
965 2009-11-29: Simon Goldschmidt
966 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
967 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
969 2009-11-29: Simon Goldschmidt
970 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
971 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
973 2009-11-26: Simon Goldschmidt
974 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
977 2009-11-26: Simon Goldschmidt
978 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
979 algorithm at PCB level
981 2009-11-22: Simon Goldschmidt
982 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
984 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
985 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
986 reusing time-wait pcb
988 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
989 * sockets.c: Fixed bug #28062: Data received directly after accepting
990 does not wake up select
992 2009-11-11: Simon Goldschmidt
993 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
995 2009-10-30: Simon Goldschmidt
996 * opt.h: Increased default value for TCP_MSS to 536, updated default
997 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
999 2009-10-28: Kieran Mansley
1000 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1001 to follow algorithm from TCP/IP Illustrated
1003 2009-10-27: Kieran Mansley
1004 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1006 2009-10-25: Simon Goldschmidt
1007 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1008 pcb->recv is NULL to keep rcv_wnd correct)
1010 2009-10-25: Simon Goldschmidt
1011 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1013 2009-10-23: Simon Goldschmidt (David Empson)
1014 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1016 2009-10-21: Simon Goldschmidt
1017 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1018 trailing 1 byte len (SYN/FIN)
1020 2009-10-21: Simon Goldschmidt
1021 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1023 2009-10-19: Simon Goldschmidt
1024 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1025 conditional code to assert where applicable), check pbuf length before
1026 testing for valid reply
1028 2009-10-19: Simon Goldschmidt
1029 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1030 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1032 2009-10-16: Simon Goldschmidt
1033 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1034 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1037 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1038 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1040 2009-10-15: Simon Goldschmidt
1041 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1044 2009-10-15: Simon Goldschmidt
1045 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1046 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1047 of network byte order
1049 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1050 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1051 which are not consecutive when retransmitting unacked segments
1053 2009-10-09 Simon Goldschmidt
1054 * opt.h: Fixed default values of some stats to only be enabled if used
1055 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1057 2009-08-30 Simon Goldschmidt
1058 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1059 function" by checking for loopback before calling ip_frag
1061 2009-08-25 Simon Goldschmidt
1062 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1064 2009-08-23 Simon Goldschmidt
1065 * ppp.c: bug #27078: Possible memory leak in pppInit()
1067 2009-08-23 Simon Goldschmidt
1068 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1071 2009-08-23 Simon Goldschmidt
1072 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1073 Fixed wrong parenthesis, added check in init.c
1075 2009-08-23 Simon Goldschmidt
1076 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1078 2009-08-23 Simon Goldschmidt
1079 * many ppp files: bug #27267: Added include to string.h where needed
1081 2009-08-23 Simon Goldschmidt
1082 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1089 2009-05-10 Simon Goldschmidt
1090 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1091 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1092 one pbuf to help MACs that don't support scatter-gather DMA.
1094 2009-05-09 Simon Goldschmidt
1095 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1096 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1098 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1099 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1100 extended info about the currently received packet.
1102 2009-04-27 Simon Goldschmidt
1103 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1105 2009-04-25 Simon Goldschmidt
1106 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1107 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1109 2009-04-21 Simon Goldschmidt
1110 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1111 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1112 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1113 as an external function for lookup.
1115 2009-04-15 Simon Goldschmidt
1116 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1118 2009-03-31 Kieran Mansley
1119 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1120 TCP timestamp options, off by default. Rework tcp_enqueue() to
1121 take option flags rather than specified option data
1123 2009-02-18 Simon Goldschmidt
1124 * cc.h: Added printf formatter for size_t: SZT_F
1126 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1127 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1130 2009-02-12 Simon Goldschmidt
1131 * init.h: Added LWIP_VERSION to get the current version of the stack
1133 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1134 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1135 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1138 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1139 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1140 is only used by UDPLITE at present, so conditionalise it.
1142 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1143 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1144 "seed" address. This should reduce AUTOIP conflicts if
1145 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1147 2008-10-02 Jonathan Larmour and Rishi Khan
1148 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1151 2008-06-30 Simon Goldschmidt
1152 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1153 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1154 mem_free to run between mem_malloc iterations. Added illegal counter for
1157 2008-06-27 Simon Goldschmidt
1158 * stats.h/.c, some other files: patch #6483: stats module improvement:
1159 Added defines to display each module's statistic individually, added stats
1160 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1162 2008-06-17 Simon Goldschmidt
1163 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1164 (define LWIP_ERR_T in cc.h)
1166 2008-06-17 Simon Goldschmidt
1167 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1170 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1171 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1172 modified version of patch # 6370: Moved loopif code to netif.c so that
1173 loopback traffic is supported on all netifs (all local IPs).
1174 Added option to limit loopback packets for each netifs.
1178 2009-08-12 Kieran Mansley
1179 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1180 out of window or out of order properly
1182 2009-08-12 Kieran Mansley
1183 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1185 2009-07-28 Simon Goldschmidt
1186 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1188 2009-07-27 Kieran Mansley
1189 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1191 2009-07-09 Kieran Mansley
1192 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1193 recv_avail and don't increment counters until message successfully
1196 2009-06-25 Kieran Mansley
1197 * api_msg.c api.h: BUG26722: initialise netconn write variables
1200 2009-06-25 Kieran Mansley
1201 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1203 2009-06-25 Kieran Mansley
1204 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1205 simultaneous close behaviour, and make snd_nxt have the same meaning
1208 2009-05-12 Simon Goldschmidt
1209 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1210 arp_table / uses etharp_query" by adding etharp_gratuitous()
1212 2009-05-12 Simon Goldschmidt
1213 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1214 to the IP header (used by igmp_ip_output_if)
1216 2009-05-06 Simon Goldschmidt
1217 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1218 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1220 2009-05-05 Simon Goldschmidt
1221 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1224 2009-05-04 Simon Goldschmidt
1225 * init.c: snmp was not initialized in lwip_init()
1227 2009-05-04 Frédéric Bernon
1228 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1230 2009-05-03 Simon Goldschmidt
1231 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1232 (and unsent->next == NULL)
1234 2009-05-02 Simon Goldschmidt
1235 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1236 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1238 2009-05-02 Simon Goldschmidt
1239 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1241 2009-05-01 Simon Goldschmidt
1242 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1244 2009-05-01 Simon Goldschmidt
1245 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1247 2009-04-29 Frédéric Bernon
1248 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1249 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1250 of broadcast packets even when this option wasn't set. Port maintainers
1251 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1252 If you want this option also filter broadcast on recv operations, you also
1253 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1255 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1256 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1257 DHCP/AUTOIP cooperation
1259 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1260 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1261 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1262 right place in tcp_output and tcp_rexmit).
1264 2009-04-25 Simon Goldschmidt
1265 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1266 when debugging": memp_sizes contained the wrong sizes (including sanity
1267 regions); memp pools for MEM_USE_POOLS were too small
1269 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1270 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1271 behavior, with with ip address string not ended by a '\0', a space or a
1274 2009-04-19 Simon Goldschmidt
1275 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1276 pcb->err is called, not pcb->connected (with an error code).
1278 2009-04-19 Simon Goldschmidt
1279 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1280 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1282 2009-04-19 Simon Goldschmidt
1283 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1284 in the header pbuf, not the data pbuf)
1286 2009-04-18 Simon Goldschmidt
1287 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1289 2009-04-15 Simon Goldschmidt
1290 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1292 2009-04-15 Simon Goldschmidt
1293 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1295 2009-04-15 Simon Goldschmidt
1296 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1297 ip_hinted_output() (for smaller code mainly)
1299 2009-04-15 Simon Goldschmidt
1300 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1302 2009-04-15 Simon Goldschmidt
1303 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1304 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1305 is big enough in dhcp_start
1307 2009-04-15 Simon Goldschmidt
1308 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1310 2009-04-15 Simon Goldschmidt
1311 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1313 2009-04-15 Simon Goldschmidt
1314 * sockets.c: bug #26121: set_errno can be overridden
1316 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1317 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1320 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1321 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1324 2009-03-31 Kieran Mansley
1325 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1326 updates are calculated and sent (BUG20515)
1328 * tcp_in.c: cope with SYN packets received during established states,
1329 and retransmission of initial SYN.
1331 * tcp_out.c: set push bit correctly when tcp segments are merged
1333 2009-03-27 Kieran Mansley
1334 * tcp_out.c set window correctly on probes (correcting change made
1337 2009-03-26 Kieran Mansley
1338 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1339 connections where no reset required (bug #25622)
1341 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1344 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1345 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1346 too small depending on MEM_ALIGNMENT
1348 2009-02-16 Simon Goldschmidt
1349 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1350 converted size argument of netconn_write to 'size_t'
1352 2009-02-16 Simon Goldschmidt
1353 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1354 by moving accept callback function pointer to TCP_PCB_COMMON
1356 2009-02-12 Simon Goldschmidt
1357 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1360 2009-02-11 Simon Goldschmidt
1361 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1363 2009-02-11 Simon Goldschmidt
1364 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1365 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1367 2009-02-10 Simon Goldschmidt
1368 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1369 Accepts_pending is decrease on a corresponding listen pcb when a connection
1370 in state SYN_RCVD is close.
1372 2009-01-28 Jonathan Larmour
1373 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1376 2008-12-19 Simon Goldschmidt
1377 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1379 2008-12-10 Tamas Somogyi, Frédéric Bernon
1380 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1381 port uses deleted netbuf.
1383 2008-10-18 Simon Goldschmidt
1384 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1387 2008-10-15 Simon Goldschmidt
1388 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1389 by packing the struct ip_reass_helper.
1391 2008-10-03 David Woodhouse, Jonathan Larmour
1392 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1394 2008-10-02 Jonathan Larmour
1395 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1396 padding is included.
1398 2008-09-30 Jonathan Larmour
1399 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1400 assertion check that addrlen isn't NULL.
1402 2008-09-30 Jonathan Larmour
1403 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1405 2008-08-26 Simon Goldschmidt
1406 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1407 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1409 2008-08-14 Simon Goldschmidt
1410 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1411 tcp_close returns != ERR_OK)
1413 2008-07-08 Frédéric Bernon
1414 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1415 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1417 2008-06-24 Jonathan Larmour
1418 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1419 if tcp_seg_copy fails.
1421 2008-06-17 Simon Goldschmidt
1422 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1423 and created defines for swapping bytes and folding u32 to u16.
1425 2008-05-30 Kieran Mansley
1426 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1427 rather than rcv_ann_wnd when deciding if packets are in-window.
1428 Contributed by <arasmussen@consultant.datasys.swri.edu>
1430 2008-05-30 Kieran Mansley
1431 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1432 passing as function pointers when MEM_LIBC_MALLOC is defined.
1434 2008-05-09 Jonathan Larmour
1435 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1436 stop it being treated as a fatal error.
1438 2008-04-15 Simon Goldschmidt
1439 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1442 2008-03-27 Simon Goldschmidt
1443 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1444 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1445 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1446 or heap memory from interrupt context
1448 2008-03-26 Simon Goldschmidt
1449 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1450 host sent a zero mss as TCP option.
1457 2008-03-10 Jonathan Larmour
1458 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1459 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1461 2008-01-22 Frédéric Bernon
1462 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1463 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1465 2008-01-14 Frédéric Bernon
1466 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1467 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1468 tcp_recv callback (see rawapi.txt).
1470 2008-01-14 Frédéric Bernon, Marc Chaland
1471 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1473 2008-01-12 Frédéric Bernon
1474 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1475 netconn::sem per netconn::op_completed like suggested for the task #7490
1476 "Add return value to sys_mbox_post".
1478 2008-01-12 Frédéric Bernon
1479 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1480 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1481 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1483 2008-01-10 Frédéric Bernon
1484 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1485 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1486 "blocking" ("block" parameter = 1).
1488 2008-01-10 Frédéric Bernon
1489 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1490 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1491 "Add return value to sys_mbox_post".
1493 2008-01-05 Frédéric Bernon
1494 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1495 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1496 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1497 indicate the number of pointers query by the mailbox. There is three defines
1498 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1499 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1500 parameter in your implementation, but to ignore it to keep the previous behavior.
1501 The new sys_mbox_trypost function return a value to know if the mailbox is
1502 full or if the message is posted. Take a look to sys_arch.txt for more details.
1503 This new function is used in tcpip_input (so, can be called in an interrupt
1504 context since the function is not blocking), and in recv_udp and recv_raw.
1506 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1507 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1508 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1509 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1510 documentation in the rawapi.txt file.
1512 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1513 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1515 2007-12-31 Frédéric Bernon, Luca Ceresoli
1516 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1517 in autoip". The change in etharp_raw could be removed, since all calls to
1518 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1519 wrong in the future.
1521 2007-12-30 Frédéric Bernon, Tom Evans
1522 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1523 Filtering" reported by Tom Evans.
1525 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1526 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1527 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1528 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1529 keep accepting new connections.
1531 2007-12-13 Frédéric Bernon
1532 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1533 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1535 2007-12-12 Frédéric Bernon
1536 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1537 are the one which have ram usage.
1539 2007-12-05 Frédéric Bernon
1540 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1541 set of variables (=0) or a local one (=1). In this last case, your port should
1542 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1543 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1545 2007-12-03 Simon Goldschmidt
1546 * ip.c: ip_input: check if a packet is for inp first before checking all other
1547 netifs on netif_list (speeds up packet receiving in most cases)
1549 2007-11-30 Simon Goldschmidt
1550 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1551 UDP: move a (connected) pcb selected for input to the front of the list of
1552 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1555 2007-11-28 Simon Goldschmidt
1556 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1558 2007-11-25 Simon Goldschmidt
1559 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1562 2007-11-24 Simon Goldschmidt
1563 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1564 to the new file netdb.c; included lwip_getaddrinfo.
1566 2007-11-21 Simon Goldschmidt
1567 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1568 based on the MTU of the netif used to send. Enabled by default. Disable by
1569 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1571 2007-11-19 Frédéric Bernon
1572 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1573 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1574 copy dns payload to parse the response), return an error if there is no place
1575 for a new query, and fix some minor problems.
1577 2007-11-16 Simon Goldschmidt
1578 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1579 removed files: core/inet.c, core/inet6.c
1580 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1581 inet and chksum part; changed includes in all lwIP files as appropriate
1583 2007-11-16 Simon Goldschmidt
1584 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1585 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1586 (gethostbyname/gethostbyname_r).
1588 2007-11-15 Jim Pettinato, Frédéric Bernon
1589 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1590 requests with RAW api interface. Initialization is done in lwip_init() with
1591 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1592 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1593 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1594 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1595 list with points to improve.
1597 2007-11-06 Simon Goldschmidt
1598 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1599 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1600 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1602 2007-11-06 Simon Goldschmidt
1603 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1604 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1605 implementation from netconn api applications.
1607 2007-11-03 Frédéric Bernon
1608 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1609 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1610 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1611 it. This is a first release which have to be improve for TCP. Note it used the
1612 netconn::recv_avail which need to be more "thread-safe" (note there is already
1613 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1615 2007-11-01 Frédéric Bernon, Marc Chaland
1616 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1617 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1618 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1619 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1620 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1622 2007-10-24 Frédéric Bernon
1623 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1624 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1625 some code (like we have talk in "patch #5919 : Create compile switch to remove
1626 select code"), but it could be done later.
1628 2007-10-08 Simon Goldschmidt
1629 * many files: Changed initialization: many init functions are not needed any
1630 more since we now rely on the compiler initializing global and static
1633 2007-10-06 Simon Goldschmidt
1634 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1635 to enqueue the received pbufs so that multiple packets can be reassembled
1636 simultaneously and no static reassembly buffer is needed.
1638 2007-10-05 Simon Goldschmidt
1639 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1640 all netifs (or ports) can use it.
1642 2007-10-05 Frédéric Bernon
1643 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1644 common function to reduce a little bit the footprint (for all functions using
1645 only the "netif" parameter).
1647 2007-10-03 Frédéric Bernon
1648 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1649 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1650 a little bit the footprint (for all functions using only the "netif" parameter).
1652 2007-09-15 Frédéric Bernon
1653 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1654 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1655 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1656 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1658 2007-09-10 Frédéric Bernon
1659 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1660 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1661 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1662 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1663 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1664 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1665 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1666 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1667 when it's queried (any direct call to "sysuptime" is changed by a call to
1668 snmp_get_sysuptime).
1670 2007-09-09 Frédéric Bernon, Bill Florac
1671 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1672 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1673 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1674 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1675 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1676 the next query message to receive the matching multicast streams).
1678 2007-09-08 Frédéric Bernon
1679 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1680 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1681 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1682 Enable to access to these fields with LWIP_TCP=0.
1684 2007-09-05 Frédéric Bernon
1685 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1686 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1687 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1688 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1689 help to reduce footprint, and to reduce "visibility" on the Internet.
1691 2007-09-05 Frédéric Bernon, Bill Florac
1692 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1693 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1694 parameters have to be provided: a task name, and a task stack size. For this
1695 one, since it's platform dependant, you could define the best one for you in
1696 your lwipopts.h. For port maintainers, you can just add these new parameters
1697 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1700 2007-09-05 Frédéric Bernon
1701 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1702 inside init.c for task #7142 "Sanity check user-configurable values".
1704 2007-09-04 Frédéric Bernon, Bill Florac
1705 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1706 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1707 value). It will avoid potential fragmentation problems, use a counter to know
1708 how many times a group is used on an netif, and free it when all applications
1709 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1710 check if LWIP_IGMP!=0).
1712 2007-09-03 Frédéric Bernon
1713 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1714 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1715 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1716 and/or the "interface" field (for netconn layer), for join/leave operations.
1717 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1718 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1720 2007-08-30 Frédéric Bernon
1721 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1722 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1723 with other API (application based on raw API, or future "socket2" API). Ports
1724 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1726 2007-08-30 Frédéric Bernon, Jonathan Larmour
1727 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1728 user-configurable values".
1730 2007-08-29 Frédéric Bernon
1731 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1732 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1733 spirit than the others modules. Modify some IGMP debug traces.
1735 2007-08-29 Frédéric Bernon
1736 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1737 Add lwip_init function to regroup all modules initializations, and to provide
1738 a place to add code for task #7142 "Sanity check user-configurable values".
1739 Ports maintainers should remove direct initializations calls from their code,
1740 and add init.c in their makefiles. Note that lwip_init() function is called
1741 inside tcpip_init, but can also be used by raw api users since all calls are
1742 disabled when matching options are disabled. Also note that their is new options
1743 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1745 2007-08-26 Marc Boucher
1746 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1747 since they can under certain circumstances be called with an invalid conn
1748 pointer after the connection has been closed (and conn has been freed).
1750 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1751 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1752 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1754 2007-08-22 Frédéric Bernon
1755 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1756 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1758 2007-08-22 Frédéric Bernon
1759 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1760 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1761 name is tcpip_input (we keep the name of 1.2.0 function).
1763 2007-08-17 Jared Grubb
1764 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1765 settings into new memp_std.h and optional user file lwippools.h. This adds
1766 more dynamic mempools, and allows the user to create an arbitrary number of
1767 mempools for mem_malloc.
1769 2007-08-16 Marc Boucher
1770 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1771 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1772 close the connection.
1774 2007-08-16 Marc Boucher
1775 * sockets.c: lwip_accept(): check netconn_peer() error return.
1777 2007-08-16 Marc Boucher
1778 * mem.c, mem.h: Added mem_calloc().
1780 2007-08-16 Marc Boucher
1781 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1782 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1783 and starving other message types.
1784 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1786 2007-08-16 Marc Boucher
1787 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1788 type and flgs (later renamed to flags).
1789 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1790 Improved lwip_recvfrom(). TCP push now propagated.
1792 2007-08-16 Marc Boucher
1793 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1796 2007-08-16 Marc Boucher
1797 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1798 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1799 Added PPPoE support and various PPP improvements.
1801 2007-07-25 Simon Goldschmidt
1802 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1803 making netbuf_copy_partial use this function.
1805 2007-07-25 Simon Goldschmidt
1806 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1807 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1810 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1811 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1812 a link callback in the netif struct, and functions to handle it. Be carefull
1813 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1814 if you want to be sure to be compatible with future changes...
1816 2007-06-30 Frédéric Bernon
1817 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1819 2007-06-21 Simon Goldschmidt
1820 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1821 LWIP_AUTOIP =0 and =1 to remove redundant code.
1823 2007-06-21 Simon Goldschmidt
1824 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1825 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1826 heap. This both prevents memory fragmentation and gives a higher speed
1827 at the cost of more memory consumption. Turned off by default.
1829 2007-06-21 Simon Goldschmidt
1830 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1831 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1832 int to be able to send a bigger buffer than 64K with one time (mainly
1833 used from lwip_send).
1835 2007-06-21 Simon Goldschmidt
1836 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1837 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1839 2007-06-21 Simon Goldschmidt
1840 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1841 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1842 changes on low memory or empty send-buffer.
1844 2007-06-18 Simon Goldschmidt
1845 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1846 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1847 used for ethernet and struct eth_addr already had a defined length of 6).
1849 2007-06-17 Simon Goldschmidt
1850 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1851 to disable UDP checksum generation on transmit.
1853 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1854 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1855 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1856 this macro to check "conn" parameter in api_msg.c functions.
1858 2007-06-11 Simon Goldschmidt
1859 * sockets.c, sockets.h: Added UDP lite support for sockets
1861 2007-06-10 Simon Goldschmidt
1862 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1863 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1866 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1867 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1868 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1869 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1870 (see TODO mark in the source code).
1872 2007-06-09 Simon Goldschmidt
1873 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1874 etharp_output() to match netif->output so etharp_output() can be used
1875 directly as netif->output to save one function call.
1877 2007-06-08 Simon Goldschmidt
1878 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1879 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1880 added initialization of those to ethernetif, slipif and loopif.
1882 2007-05-18 Simon Goldschmidt
1883 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1884 (defaulting to off for now) that can be set to 0 to send fragmented
1885 packets by passing PBUF_REFs down the stack.
1887 2007-05-23 Frédéric Bernon
1888 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1889 connections, such present in patch #5959.
1891 2007-05-23 Frédéric Bernon
1892 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1893 code in only one part...
1895 2007-05-18 Simon Goldschmidt
1896 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1897 elements to overflow. This is achieved by adding some bytes before and after
1898 each pool element (increasing their size, of course), filling them with a
1899 prominent value and checking them on freeing the element.
1900 Set it to 2 to also check every element in every pool each time memp_malloc()
1901 or memp_free() is called (slower but more helpful).
1903 2007-05-10 Simon Goldschmidt
1904 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1905 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1908 2007-05-11 Frédéric Bernon
1909 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1910 Include a function pointer instead of a table index in the message to reduce
1911 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1912 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1914 2007-05-10 Simon Goldschmidt
1915 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1916 \ extern "C" {' in all header files. Now you can write your application using
1917 the lwIP stack in C++ and simply #include the core files. Note I have left
1918 out the netif/ppp/*h header files for now, since I don't know which files are
1919 included by applications and which are for internal use only.
1921 2007-05-09 Simon Goldschmidt
1922 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1923 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1924 situations where some compilers might inline the copy and save a function
1925 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1927 2007-05-08 Simon Goldschmidt
1928 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1929 to be overriden in case the C-library malloc implementation is not protected
1930 against concurrent access.
1932 2007-05-04 Simon Goldschmidt (Atte Kojo)
1933 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1934 multiple packets to the same host.
1936 2007-05-04 Frédéric Bernon, Jonathan Larmour
1937 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1938 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1939 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1940 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1941 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1942 these fields are now renamed "addr" & "port".
1944 2007-04-11 Jonathan Larmour
1945 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1946 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1947 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1948 by the port in sys_arch.h if desired.
1950 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1951 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1952 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1953 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1955 2007-04-05 Frédéric Bernon
1956 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1958 2007-04-04 Simon Goldschmidt
1959 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1960 use this for and architecture-independent form to tell the compiler you intentionally
1961 are not using this variable. Can be overriden in cc.h.
1963 2007-03-28 Frédéric Bernon
1964 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1965 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1966 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1967 It will be used by DHCP to register a client hostname, but can also be use when you call
1970 2007-03-28 Frédéric Bernon
1971 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1972 initialize a network interface's flag with. It tell this interface is an ethernet
1973 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1974 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1976 2007-03-26 Frédéric Bernon, Jonathan Larmour
1977 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1978 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1979 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1980 is done in tcpip_init function.
1982 2007-03-22 Frédéric Bernon
1983 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1984 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1985 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1986 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1987 but never used. Fix msg_in.c with the correct #if test for a stat display.
1989 2007-03-21 Kieran Mansley
1990 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1991 Provides callback on netif up/down state change.
1993 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1994 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1995 ip.c, netif.h, tcpip.c, opt.h:
1996 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1997 filter per all network interfaces. Declare a new function in netif to enable to
1998 control the MAC filter (to reduce lwIP traffic processing).
2000 2007-03-11 Frédéric Bernon
2001 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2002 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2003 unless you know what you're doing (default are RFC1122 compliant). Note
2004 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2006 2007-03-08 Frédéric Bernon
2007 * tcp.h: Keepalive values can be configured at compile time, but don't change
2008 this unless you know what you're doing (default are RFC1122 compliant).
2010 2007-03-08 Frédéric Bernon
2011 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2012 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2013 on UDP sockets/netconn.
2015 2007-03-08 Simon Goldschmidt
2016 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2018 2007-03-06 Frédéric Bernon
2019 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2020 Implement SO_RCVTIMEO on UDP sockets/netconn.
2022 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2023 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2024 on the stack and remove the API msg type from memp
2026 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2027 * sockets.h, sockets.c: Move socket initialization to new
2028 lwip_socket_init() function.
2029 NOTE: this changes the API with ports. Ports will have to be
2030 updated to call lwip_socket_init() now.
2032 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2033 * api_lib.c: Use memcpy in netbuf_copy_partial.
2038 2008-03-17 Frédéric Bernon, Ed Kerekes
2039 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2040 some problems to fill the IP header on some targets, use now the
2041 ip.h macros to do it).
2043 2008-03-13 Frédéric Bernon
2044 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2045 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2046 TCP connection caused a crash. Note that using (lwip_)recvfrom
2047 like this is a bit slow and that using (lwip)getpeername is the
2048 good lwip way to do it (so, using recv is faster on tcp sockets).
2050 2008-03-12 Frédéric Bernon, Jonathan Larmour
2051 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2052 recv_raw() does not consume data", and the ping sample (with
2053 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2054 returned the IP payload, without the IP header).
2056 2008-03-04 Jonathan Larmour
2057 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2058 and/or warnings on some systems where mem_size_t and size_t differ.
2059 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2061 2008-03-04 Kieran Mansley (contributions by others)
2062 * Numerous small compiler error/warning fixes from contributions to
2063 mailing list after 1.3.0 release candidate made.
2065 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2066 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2068 2008-01-15 Kieran Mansley
2069 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2070 prevented from sending by a small send window, not just a zero
2073 2008-01-09 Jonathan Larmour
2074 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2075 conflict with Linux system headers.
2077 2008-01-06 Jonathan Larmour
2078 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2079 address entirely on receiving a DHCPNAK, and restarting discovery.
2081 2007-12-21 Simon Goldschmidt
2082 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2083 is not protected" by using new macros for interlocked access to modify/test
2084 netconn->recv_avail.
2086 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2087 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2089 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2090 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2091 of silly window avoidance and prevent lwIP from shrinking the window)
2093 2007-12-04 Simon Goldschmidt
2094 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2095 data packet was lost): add assert that all segment lists are empty in
2096 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2097 state from LAST_ACK in tcp_process
2099 2007-12-02 Simon Goldschmidt
2100 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2101 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2102 has to be set to 0 in lwipopts.h
2104 2007-12-02 Simon Goldschmidt
2105 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2106 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2107 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2108 This is a fix for thread-safety and allocates all items needed for a netconn
2109 when the netconn is created.
2111 2007-11-30 Simon Goldschmidt
2112 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2113 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2114 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2115 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2117 2007-11-27 Simon Goldschmidt
2118 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2119 letting ip_route only use netifs that are up.
2121 2007-11-27 Simon Goldschmidt
2122 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2123 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2124 sockets block most operations once they have seen a fatal error.
2126 2007-11-27 Simon Goldschmidt
2127 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2128 netif to send as an argument (to be able to send on netifs that are down).
2130 2007-11-26 Simon Goldschmidt
2131 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2134 2007-11-21 Simon Goldschmidt
2135 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2136 Fixed the nagle algorithm; nagle now also works for all raw API applications
2137 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2139 2007-11-12 Frédéric Bernon
2140 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2141 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2142 context in do_getaddr.
2144 2007-11-10 Simon Goldschmidt
2145 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2146 happen any time). Now the packet simply isn't enqueued when out of memory.
2148 2007-11-01 Simon Goldschmidt
2149 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2150 TCP_MSS if that is smaller) as long as no MSS option is received from the
2153 2007-11-01 Simon Goldschmidt
2154 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2155 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2156 sending our configured TCP_MSS instead of the one received).
2158 2007-11-01 Simon Goldschmidt
2159 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2160 calculated based on the configured TCP_MSS, not on the MSS option received
2163 2007-10-09 Simon Goldschmidt
2164 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2165 short and also was generated wrong if checksum coverage != tot_len;
2166 receive: checksum was calculated wrong if checksum coverage != tot_len
2168 2007-10-08 Simon Goldschmidt
2169 * mem.c: lfree was not updated in mem_realloc!
2171 2007-10-07 Frédéric Bernon
2172 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2173 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2174 this change cause an API breakage for netconn_addr, since a parameter
2175 type change. Any compiler should cause an error without any changes in
2176 yours netconn_peer calls (so, it can't be a "silent change"). It also
2177 reduce a little bit the footprint for socket layer (lwip_getpeername &
2178 lwip_getsockname use now a common lwip_getaddrname function since
2179 netconn_peer & netconn_addr have the same parameters).
2181 2007-09-20 Simon Goldschmidt
2182 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2183 by checking tcp_tw_pcbs also
2185 2007-09-19 Simon Goldschmidt
2186 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2188 2007-09-15 Mike Kleshov
2189 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2191 2007-09-06 Frédéric Bernon
2192 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2193 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2194 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2195 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2197 2007-08-30 Frédéric Bernon
2198 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2199 and fix some coding style.
2201 2007-08-28 Frédéric Bernon
2202 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2203 kind of packets. These packets are considered like Ethernet packets (payload
2204 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2205 are considered like IP packets (payload pointing to iphdr).
2207 2007-08-27 Frédéric Bernon
2208 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2209 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2210 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2212 2007-08-24 Kieran Mansley
2213 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2214 compiler (Paradigm C++)
2216 2007-08-09 Frédéric Bernon, Bill Florac
2217 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2218 Introduce IGMP_STATS to centralize statistics management.
2220 2007-08-09 Frédéric Bernon, Bill Florac
2221 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2222 packet on a udp pcb binded on an netif's IP address, and not on "any".
2224 2007-08-09 Frédéric Bernon, Bill Florac
2225 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2226 This is mainly on using lookup/lookfor, and some coding styles...
2228 2007-07-26 Frédéric Bernon (and "thedoctor")
2229 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2231 2007-07-25 Simon Goldschmidt
2232 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2233 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2234 (tcp_output is called again later from tcp timers).
2236 2007-07-25 Simon Goldschmidt
2237 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2238 copy_from_pbuf, which illegally modified the given pbuf.
2240 2007-07-25 Simon Goldschmidt
2241 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2242 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2244 2007-07-24 Simon Goldschmidt
2245 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2246 correct state (must be CLOSED).
2248 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2249 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2250 allocation. It now returns NULL.
2252 2007-07-13 Frédéric Bernon
2253 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2256 2007-07-13 Frédéric Bernon
2257 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2258 because current code doesn't follow rawapi.txt documentation.
2260 2007-07-13 Kieran Mansley
2261 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2262 out of sequence processing of received packets
2264 2007-07-03 Simon Goldschmidt
2265 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2266 assumption is made that this pbuf is in one piece (i.e. not chained). These
2267 assumptions clash with the possibility of converting to fully pool-based
2268 pbuf implementations, where PBUF_RAM pbufs might be chained.
2270 2007-07-03 Simon Goldschmidt
2271 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2272 when closing tcp netconns: removed conn->sem, less context switches when
2273 closing, both netconn_close and netconn_delete should safely close tcp
2276 2007-07-02 Simon Goldschmidt
2277 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2278 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2279 to cache ARP table indices with each pcb instead of single-entry cache for
2282 2007-07-02 Simon Goldschmidt
2283 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2284 warnings when assigning to smaller types.
2286 2007-06-28 Simon Goldschmidt
2287 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2289 2007-06-28 Simon Goldschmidt
2290 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2291 a segment contained chained pbufs)
2293 2007-06-28 Frédéric Bernon
2294 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2295 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2296 possible to define this macro in your own lwipopts.h to always use C library's
2297 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2299 2007-06-28 Frédéric Bernon
2300 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2301 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2302 in api_lib/api_msg (use pointers and not type with table, etc...)
2304 2007-06-26 Simon Goldschmidt
2305 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2307 2007-06-25 Simon Goldschmidt
2308 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2309 for udp packets with no matching pcb.
2311 2007-06-25 Simon Goldschmidt
2312 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2313 could get udp input packets if the remote side matched.
2315 2007-06-13 Simon Goldschmidt
2316 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2317 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2319 2007-06-13 Simon Goldschmidt
2320 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2321 -> netconn_new_..() does not allocate a new connection for unsupported
2324 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2325 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2326 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2328 2007-06-13 Frédéric Bernon, Matthias Weisser
2329 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2330 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2331 some macro names collision with some OS macros.
2333 2007-06-11 Simon Goldschmidt
2334 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2335 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2336 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2339 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2340 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2341 where TCP flags wasn't initialized in tcp_keepalive.
2343 2007-06-03 Simon Goldschmidt
2344 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2345 registered, p->payload was modified without modifying p->len if sending
2346 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2348 2007-06-03 Simon Goldschmidt
2349 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2350 re-used the input pbuf even if that didn't have enough space to include the
2351 link headers. Now the space is tested and a new pbuf is allocated for the
2352 echo response packet if the echo request pbuf isn't big enough.
2354 2007-06-01 Simon Goldschmidt
2355 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2357 2007-05-23 Frédéric Bernon
2358 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2359 allocated by do_listen if success) and netconn_accept errors handling. In
2360 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2361 by ASSERT, except for netconn_delete.
2363 2007-05-23 Frédéric Bernon
2364 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2365 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2366 directly close the recvmbox).
2368 2007-05-22 Simon Goldschmidt
2369 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2370 bound but unconnected (and non-listening) tcp_pcbs.
2372 2007-05-22 Frédéric Bernon
2373 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2374 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2375 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2376 like "sys_timeout" in their application threads.
2378 2007-05-22 Frédéric Bernon
2379 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2380 which parameters are used by which do_xxx function, and to avoid "misusing"
2381 parameters (patch #5938).
2383 2007-05-22 Simon Goldschmidt
2384 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2385 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2386 is only 8 bits wide. This affects the api, as there, the protocol was
2389 2007-05-18 Simon Goldschmidt
2390 * memp.c: addition to patch #5913: smaller pointer was returned but
2391 memp_memory was the same size -> did not save memory.
2393 2007-05-16 Simon Goldschmidt
2394 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2397 2007-05-16 Simon Goldschmidt
2398 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2399 as the one of the netif used for sending to prevent sending from old
2400 addresses after a netif address gets changed (partly fixes bug #3168).
2402 2007-05-16 Frédéric Bernon
2403 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2404 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2405 tcpip_init) because we have to be sure that network interfaces are already
2406 added (mac filter is updated only in igmp_init for the moment).
2408 2007-05-16 Simon Goldschmidt
2409 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2410 into sys_arch_sem_wait calls to prevent timers from running while waiting
2411 for the heap. This fixes bug #19167.
2413 2007-05-13 Simon Goldschmidt
2414 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2415 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2418 2007-05-07 Simon Goldschmidt
2419 * mem.c: Another attempt to fix bug #17922.
2421 2007-05-04 Simon Goldschmidt
2422 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2423 implementation so that it can be reused (don't allocate the target
2424 pbuf inside pbuf_copy()).
2426 2007-05-04 Simon Goldschmidt
2427 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2428 to save a little RAM (next pointer of memp is not used while not in pool).
2431 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2434 2007-04-23 Simon Goldschmidt
2435 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2436 in NULL reference for incoming TCP packets". Loopif has to be configured
2437 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2438 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2439 putting packets on a list that is fed to the stack by calling loopif_poll()
2440 (single-thread / NO_SYS / polling environment where e.g.
2441 netif->input() = ip_input).
2443 2007-04-17 Jonathan Larmour
2444 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2445 the difference between two u16_t's.
2446 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2447 MEMP_NUM_NETCONN in sockets.c right now.
2449 2007-04-12 Jonathan Larmour
2450 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2452 2007-04-12 Kieran Mansley
2453 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2454 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2456 2007-04-11 Simon Goldschmidt
2457 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2458 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2459 pbuf.c: removed functions no needed any more (by etharp).
2461 2007-04-11 Kieran Mansley
2462 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2463 "Constant is long" warnings with 16bit compilers. Contributed by
2464 avatar@mmlab.cse.yzu.edu.tw
2466 2007-04-05 Frédéric Bernon, Jonathan Larmour
2467 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2468 the mailbox is active". Now, the post is only done during a connect, and do_send,
2469 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2471 2007-04-03 Frédéric Bernon
2472 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2473 packets. See patch #5834.
2475 2007-03-30 Frédéric Bernon
2476 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2477 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2479 2007-03-30 Frédéric Bernon
2480 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2481 others environment defines (these were too "generic").
2483 2007-03-28 Frédéric Bernon
2484 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2485 result and can cause a crash. lwip_send now check netbuf_ref result.
2487 2007-03-28 Simon Goldschmidt
2488 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2489 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2490 defined. This is the way it should have been already (looking at
2493 2007-03-28 Kieran Mansley
2494 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2495 IP and TCP headers *and* physical link headers
2497 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2498 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2499 to send some garbage. It is not a definitive solution, but the patch does solve
2500 the problem for most cases.
2502 2007-03-22 Frédéric Bernon
2503 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2505 2007-03-22 Frédéric Bernon
2506 * api_lib.c: somes resources couldn't be freed if there was errors during
2507 netconn_new_with_proto_and_callback.
2509 2007-03-22 Frédéric Bernon
2510 * ethernetif.c: update netif->input calls to check return value. In older ports,
2511 it's a good idea to upgrade them, even if before, there could be another problem
2512 (access to an uninitialized mailbox).
2514 2007-03-21 Simon Goldschmidt
2515 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2516 by casting to unsigned).
2518 2007-03-21 Frédéric Bernon
2519 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2520 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2521 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2522 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2523 faster and more reliable communication between api_lib and tcpip.
2525 2007-03-21 Frédéric Bernon
2526 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2528 2007-03-21 Frédéric Bernon
2529 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2531 2007-03-21 Kieran Mansley
2532 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2535 2007-03-21 Kieran Mansley
2536 * Fix all uses of pbuf_header to check the return value. In some
2537 cases just assert if it fails as I'm not sure how to fix them, but
2538 this is no worse than before when they would carry on regardless
2541 2007-03-21 Kieran Mansley
2542 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2543 comment out missing header include in icmp.c
2545 2007-03-20 Frédéric Bernon
2546 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2547 synchronized with memp.h.
2549 2007-03-20 Frédéric Bernon
2550 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2551 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2552 network interfaces. Also fix a compiler warning.
2554 2007-03-20 Kieran Mansley
2555 * udp.c: Only try and use pbuf_header() to make space for headers if
2556 not a ROM or REF pbuf.
2558 2007-03-19 Frédéric Bernon
2559 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2562 2007-03-19 Frédéric Bernon
2563 * Remove unimplemented "memp_realloc" function from memp.h.
2565 2007-03-11 Simon Goldschmidt
2566 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2569 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2570 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2571 (missing `const' qualifier in socket functions), to get more compatible to
2572 standard POSIX sockets.
2574 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2575 * sockets.c: Add asserts inside bind, connect and sendto to check input
2576 parameters. Remove excessive set_errno() calls after get_socket(), because
2577 errno is set inside of get_socket(). Move last sock_set_errno() inside
2580 2007-03-09 Simon Goldschmidt
2581 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2582 was allocated too small.
2584 2007-03-06 Simon Goldschmidt
2585 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2586 the stack from concurrent access.
2588 2007-03-06 Frédéric Bernon, Dmitry Potapov
2589 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2590 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2592 2007-03-06 Simon Goldschmidt
2593 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2594 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2596 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2597 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2598 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2599 Allow to do ARP processing for incoming packets inside tcpip_thread
2600 (protecting ARP layer against concurrent access). You can also disable
2601 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2602 Older ports have to use tcpip_ethinput.
2604 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2605 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2606 from pointer target type"
2608 2007-03-05 Frédéric Bernon
2609 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2610 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2612 2007-03-04 Frédéric Bernon
2613 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2616 2007-03-04 Frédéric Bernon
2617 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2619 The api_msg struct stay on the stack (not moved to netconn struct).
2621 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2622 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2623 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2624 Also fixed cast warning in pbuf_alloc()
2626 2007-03-04 Simon Goldschmidt
2627 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2628 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2630 2007-03-03 Frédéric Bernon
2631 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2632 It is static, and never used in udp.c except udp_init().
2634 2007-03-02 Simon Goldschmidt
2635 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2636 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2637 initialized before tcpip_thread is running (e.g. before OS is started)
2639 2007-03-02 Frédéric Bernon
2640 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2643 2007-02-28 Kieran Mansley
2644 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2645 outside the region of the pbuf by pbuf_header()
2647 2007-02-28 Kieran Mansley
2648 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2649 when supplied timeout is also non-zero
2653 2006-12-05 Leon Woestenberg
2654 * CHANGELOG: Mention STABLE-1.2.0 release.
2658 2006-12-01 Christiaan Simons
2659 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2660 Note this is a workaround. Currently I have no other options left.
2662 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2663 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2664 to include/lwip/opt.h.
2665 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2666 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2667 * opt.h: Add above new options.
2669 2006-08-18 Christiaan Simons
2670 * tcp_{in,out}.c: added SNMP counters.
2671 * ipv4/ip.c: added SNMP counters.
2672 * ipv4/ip_frag.c: added SNMP counters.
2674 2006-08-08 Christiaan Simons
2675 * etharp.{c,h}: added etharp_find_addr() to read
2676 (stable) ethernet/IP address pair from ARP table
2678 2006-07-14 Christiaan Simons
2679 * mib_structs.c: added
2680 * include/lwip/snmp_structs.h: added
2681 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2683 2006-07-06 Christiaan Simons
2684 * snmp/asn1_{enc,dec}.c added
2686 * snmp/msg_{in,out}.c added
2687 * include/lwip/snmp_asn1.h added
2688 * include/lwip/snmp_msg.h added
2689 * doc/snmp_agent.txt added
2691 2006-03-29 Christiaan Simons
2692 * inet.c, inet.h: Added platform byteswap support.
2693 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2694 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2698 2006-11-30 Christiaan Simons
2699 * dhcp.c: Fixed false triggers of request_timeout.
2701 2006-11-28 Christiaan Simons
2702 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2704 2006-10-11 Christiaan Simons
2705 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2706 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2707 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2708 identifier from 170 to 136 (bug #17574).
2710 2006-10-10 Christiaan Simons
2711 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2713 2006-08-17 Christiaan Simons
2714 * udp.c: Fixed bug #17200, added check for broadcast
2715 destinations for PCBs bound to a unicast address.
2717 2006-08-07 Christiaan Simons
2718 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2720 2006-06-27 Christiaan Simons
2721 * api_msg.c: Applied patch for cold case (bug #11135).
2722 In accept_function() ensure newconn->callback is always initialized.
2724 2006-06-15 Christiaan Simons
2725 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2726 facilitate printing of mem_size_t and u16_t statistics.
2728 2006-06-14 Christiaan Simons
2729 * api_msg.c: Applied patch #5146 to handle allocation failures
2730 in accept() by Kevin Lawson.
2732 2006-05-26 Christiaan Simons
2733 * api_lib.c: Removed conn->sem creation and destruction
2734 from netconn_write() and added sys_sem_new to netconn_new_*.
2738 2006-03-03 Christiaan Simons
2739 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2740 access and added pbuf_alloc() return value checks.
2742 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2743 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2744 now handled by the checksum routine properly.
2746 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2747 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2748 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2750 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2751 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2752 submitted by Mitrani Hiroshi.
2754 2005-12-15 Christiaan Simons
2755 * inet.c: Disabled the added summing routine to preserve code space.
2757 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2758 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2759 Added Curt McDowell's optimized checksumming routine for future
2760 inclusion. Need to create test case for unaliged, aligned, odd,
2761 even length combination of cases on various endianess machines.
2763 2005-12-09 Christiaan Simons
2764 * inet.c: Rewrote standard checksum routine in proper portable C.
2766 2005-11-25 Christiaan Simons
2767 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2768 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2769 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2771 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2772 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2773 routine by Peter Jolasson.
2774 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2776 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2777 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2778 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2780 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2781 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2783 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2784 * udp.c: UDP pcb->recv() was called even when it was NULL.
2788 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2789 * etharp.*: Disabled multiple packets on the ARP queue.
2790 This clashes with TCP queueing.
2792 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2793 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2794 Halved the ARP period, doubled the period counts.
2795 ETHARP_MAX_PENDING now should be at least 2. This prevents
2796 the counter from reaching 0 right away (which would allow
2797 too little time for ARP responses to be received).
2799 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2800 * dhcp.c: Decline messages were not multicast but unicast.
2801 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2802 Do not try hard to insert arbitrary packet's source address,
2803 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2804 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2805 querying an address will see it appear in the cache (DHCP could
2806 suffer from this when a server invalidly gave an in-use address.)
2807 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2808 comparing network addresses (identifiers), not the network masks
2810 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2811 IP address actually belongs to the network of the given interface.
2813 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2814 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2818 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2819 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2820 even if one is already pending, if the rcv_wnd is above a threshold
2821 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2822 delayed ACK in order to open the window if the stack is only receiving data.
2824 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2825 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2827 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2828 * etharp.c: Make sure the first pbuf queued on an ARP entry
2829 is properly ref counted.
2831 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2832 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2833 warnings about comparison.
2834 * pbuf.c: Stopped compiler complaining of empty if statement
2835 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2836 * tcp.c: Stopped compiler complaining of empty if statement
2837 when LWIP_DEBUGF() empty.
2838 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2839 * inet.c: Added a couple of casts to quiet the compiler.
2840 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2842 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2843 * inet.c: Made data types consistent in inet_ntoa().
2844 Added casts for return values of checksum routines, to pacify compiler.
2845 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2846 Small corrections to some debugging statements, to pacify compiler.
2848 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2849 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2850 * ethernetif.c Updated low_level_output() to match prototype for
2851 netif->linkoutput and changed low_level_input() similarly for consistency.
2852 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2853 of raw_recv() in raw.h and so avoid compiler error.
2854 * sockets.c: Added trivial (int) cast to keep compiler happier.
2855 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2861 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2862 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2863 your cc.h file defines this either 1 or 0. If non-defined,
2865 * .c: Added <string.h> and <errno.h> includes where used.
2866 * etharp.c: Made some array indices unsigned.
2868 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2869 * netif.*: Added netif_set_up()/down().
2870 * dhcp.c: Changes to restart program flow.
2872 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2873 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2874 single-pass lookup for different candidates. Should exploit locality.
2876 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2877 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2878 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2879 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2880 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2884 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2885 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2886 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2887 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2888 is to prefix the 14-bit Ethernet headers with two padding bytes.
2890 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2891 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2892 * etharp.c: Fixed the case where the packet that initiates the ARP request
2893 is not queued, and gets lost. Fixed the case where the packets destination
2894 address is already known; we now always queue the packet and perform an ARP
2901 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2902 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2903 * Fixed two possible NULL references in rare cases.
2909 * Fixed DHCP which did not include the IP address in DECLINE messages.
2913 * etharp.c has been hauled over a bit.
2919 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2920 * Packets sent from ARP queue had invalid source hardware address.
2924 * Pass-by ARP requests do now update the cache.
2928 * No longer dependent on ctype.h.
2929 * New socket options.
2930 * Raw IP pcb support.
2936 * Some debug formatters and casts fixed.
2937 * Numereous fixes in PPP.
2941 * DEBUGF now is LWIP_DEBUGF
2942 * pbuf_dechain() has been re-enabled.
2943 * Mentioned the changed use of CVS branches in README.
2949 * Fixed pool pbuf memory leak in pbuf_alloc().
2950 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2951 Reported by Savin Zlobec.
2953 * PBUF_POOL chains had their tot_len field not set for non-first
2954 pbufs. Fixed in pbuf_alloc().
2958 * Added PPP stack contributed by Marc Boucher
2962 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2964 * ARP queueuing now queues the latest packet instead of the first.
2965 This is the RFC recommended behaviour, but can be overridden in
2972 * TCP has been fixed to deal with the new use of the pbuf->ref
2975 * DHCP dhcp_inform() crash bug fixed.
2979 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2980 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2981 Implemented by David Haas.
2987 * The packet buffer implementation has been enhanced to support
2988 zero-copy and copy-on-demand for packet buffers which have their
2989 payloads in application-managed memory.
2990 Implemented by David Haas.
2992 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2993 if an outgoing packet can be directly sent on the link, or perform
2994 a copy-on-demand when necessary.
2996 The application can safely assume the packet is sent, and the RAM
2997 is available to the application directly after calling udp_send()
2998 or similar function.
3002 * ARP_QUEUEING should now correctly work for all cases, including
3004 Implemented by Leon Woestenberg.
3008 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3009 to a '0.0.0.0' IP address.
3011 * The packet buffer implementation is changed. The pbuf->ref counter
3012 meaning has changed, and several pbuf functions have been
3013 adapted accordingly.
3015 * netif drivers have to be changed to set the hardware address length field
3016 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3017 See the contrib/ports/c16x cs8900 driver as a driver example.
3019 * netif's have a dhcp field that must be initialized to NULL by the driver.
3020 See the contrib/ports/c16x cs8900 driver as a driver example.
3022 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3023 logged in CVS but have not been explained here.
3025 (0.5.3) Changes since version 0.5.2
3029 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3030 threads because it wasn't protected by semaphores.
3034 * struct ip_addr now packed.
3036 * The name of the time variable in arp.c has been changed to ctime
3037 to avoid conflicts with the time() function.
3039 (0.5.2) Changes since version 0.5.1
3043 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3047 * A bug in tcp_parseopt() could cause the stack to hang because of a
3048 malformed TCP option.
3050 * The address of new connections in the accept() function in the BSD
3051 socket library was not handled correctly.
3053 * pbuf_dechain() did not update the ->tot_len field of the tail.
3055 * Aborted TCP connections were not handled correctly in all
3060 * All protocol header structs are now packed.
3062 * The ->len field in the tcp_seg structure now counts the actual
3063 amount of data, and does not add one for SYN and FIN segments.
3065 (0.5.1) Changes since version 0.5.0
3069 * Possible to run as a user process under Linux.
3071 * Preliminary support for cross platform packed structs.
3073 * ARP timer now implemented.
3077 * TCP output queue length was badly initialized when opening
3080 * TCP delayed ACKs were not sent correctly.
3082 * Explicit initialization of BSS segment variables.
3084 * read() in BSD socket library could drop data.
3086 * Problems with memory alignment.
3088 * Situations when all TCP buffers were used could lead to
3091 * TCP MSS option wasn't parsed correctly.
3093 * Problems with UDP checksum calculation.
3095 * IP multicast address tests had endianess problems.
3097 * ARP requests had wrong destination hardware address.
3101 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3103 * A ->linkoutput() member was added to struct netif.
3105 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3107 * ntoh* macros are now null definitions for big endian CPUs.
3109 (0.5.0) Changes since version 0.4.2
3113 * Redesigned operating system emulation layer to make porting easier.
3115 * Better control over TCP output buffers.
3117 * Documenation added.
3121 * Locking issues in buffer management.
3123 * Bugfixes in the sequential API.
3125 * IP forwarding could cause memory leakage. This has been fixed.
3129 * Directory structure somewhat changed; the core/ tree has been
3132 (0.4.2) Changes since version 0.4.1
3136 * Experimental ARP implementation added.
3138 * Skeleton Ethernet driver added.
3140 * Experimental BSD socket API library added.
3144 * In very intense situations, memory leakage could occur. This has
3149 * Variables named "data" and "code" have been renamed in order to
3150 avoid name conflicts in certain compilers.
3152 * Variable++ have in appliciable cases been translated to ++variable
3153 since some compilers generate better code in the latter case.
3155 (0.4.1) Changes since version 0.4
3159 * TCP: Connection attempts time out earlier than data
3160 transmissions. Nagle algorithm implemented. Push flag set on the
3161 last segment in a burst.
3163 * UDP: experimental support for UDP-Lite extensions.
3167 * TCP: out of order segments were in some cases handled incorrectly,
3168 and this has now been fixed. Delayed acknowledgements was broken
3169 in 0.4, has now been fixed. Binding to an address that is in use
3170 now results in an error. Reset connections sometimes hung an
3171 application; this has been fixed.
3173 * Checksum calculation sometimes failed for chained pbufs with odd
3174 lengths. This has been fixed.
3176 * API: a lot of bug fixes in the API. The UDP API has been improved
3177 and tested. Error reporting and handling has been
3178 improved. Logical flaws and race conditions for incoming TCP
3179 connections has been found and removed.
3181 * Memory manager: alignment issues. Reallocating memory sometimes
3182 failed, this has been fixed.
3184 * Generic library: bcopy was flawed and has been fixed.
3188 * API: all datatypes has been changed from generic ones such as
3189 ints, to specified ones such as u16_t. Functions that return
3190 errors now have the correct type (err_t).
3192 * General: A lot of code cleaned up and debugging code removed. Many
3193 portability issues have been fixed.
3195 * The license was changed; the advertising clause was removed.
3199 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3200 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3203 (0.4) Changes since version 0.3.1
3205 * Memory management has been radically changed; instead of
3206 allocating memory from a shared heap, memory for objects that are
3207 rapidly allocated and deallocated is now kept in pools. Allocation
3208 and deallocation from those memory pools is very fast. The shared
3209 heap is still present but is used less frequently.
3211 * The memory, memory pool, and packet buffer subsystems now support
3212 4-, 2-, or 1-byte alignment.
3214 * "Out of memory" situations are handled in a more robust way.
3216 * Stack usage has been reduced.
3218 * Easier configuration of lwIP parameters such as memory usage,
3219 TTLs, statistics gathering, etc. All configuration parameters are
3220 now kept in a single header file "lwipopts.h".
3222 * The directory structure has been changed slightly so that all
3223 architecture specific files are kept under the src/arch
3226 * Error propagation has been improved, both in the protocol modules
3229 * The code for the RTXC architecture has been implemented, tested
3232 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3233 the Internet checksum modules.
3235 * Bugs related to porting between a 32-bit and a 16-bit architecture
3236 have been found and corrected.
3238 * The license has been changed slightly to conform more with the
3239 original BSD license, including the advertisement clause.
3241 (0.3.1) Changes since version 0.3
3243 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3244 RAM never returned the RAM when the pbuf was deallocated.
3246 * TCP congestion control, window updates and retransmissions did not
3247 work correctly. This has now been fixed.
3249 * Bugfixes in the API.
3251 (0.3) Changes since version 0.2
3253 * New and improved directory structure. All include files are now
3254 kept in a dedicated include/ directory.
3256 * The API now has proper error handling. A new function,
3257 netconn_err(), now returns an error code for the connection in
3260 * Improvements in the memory management subsystem. The system now
3261 keeps a pointer to the lowest free memory block. A new function,
3262 mem_malloc2() tries to allocate memory once, and if it fails tries
3263 to free some memory and retry the allocation.
3265 * Much testing has been done with limited memory
3266 configurations. lwIP now does a better job when overloaded.
3268 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3270 * Many bugfixes in the TCP code:
3272 - Fixed a bug in tcp_close().
3274 - The TCP receive window was incorrectly closed when out of
3275 sequence segments was received. This has been fixed.
3277 - Connections are now timed-out of the FIN-WAIT-2 state.
3279 - The initial congestion window could in some cases be too
3280 large. This has been fixed.
3282 - The retransmission queue could in some cases be screwed up. This
3285 - TCP RST flag now handled correctly.
3287 - Out of sequence data was in some cases never delivered to the
3288 application. This has been fixed.
3290 - Retransmitted segments now contain the correct acknowledgment
3291 number and advertised window.
3293 - TCP retransmission timeout backoffs are not correctly computed
3294 (ala BSD). After a number of retransmissions, TCP now gives up
3297 * TCP connections now are kept on three lists, one for active
3298 connections, one for listening connections, and one for
3299 connections that are in TIME-WAIT. This greatly speeds up the fast
3300 timeout processing for sending delayed ACKs.
3302 * TCP now provides proper feedback to the application when a
3303 connection has been successfully set up.
3305 * More comments have been added to the code. The code has also been
3306 somewhat cleaned up.
3308 (0.2) Initial public release.