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 2012-03-20: Simon Goldschmidt (patch by Mason)
80 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
82 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
83 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
84 possible bug on little endian system
86 2012-02-23: Simon Goldschmidt
87 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
88 (introduced when fixing bug# 33551)
90 2012-02-16: Simon Goldschmidt
91 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
92 (bug #35541: PPP Memory Leak)
94 2012-02-16: Simon Goldschmidt
95 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
96 (introduced when fixing bug# 33551)
98 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
99 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
101 2012-02-15: Simon Goldschmidt
102 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
105 2012-02-12: Simon Goldschmidt
106 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
107 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
109 2012-02-11: Simon Goldschmidt
110 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
113 2012-01-22: Simon Goldschmidt
114 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
116 2012-01-21: Simon Goldschmidt
117 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
119 2012-01-20: Simon Goldschmidt
120 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
122 2012-01-20: Simon Goldschmidt
123 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
125 2011-11-25: Simon Goldschmidt
126 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
127 tcp_active_pcbs in some cases
129 2011-11-23: Simon Goldschmidt
130 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
133 2011-11-22: Simon Goldschmidt
134 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
135 netif is brought down
137 2011-10-28: Simon Goldschmidt
138 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
140 2011-10-23: Simon Goldschmidt
141 * mem.c: fixed bug #34429: possible memory corruption with
142 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
144 2011-10-18: Simon Goldschmidt
145 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
148 2011-10-18: Simon Goldschmidt
149 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
150 windows (bug #34176 select after non-blocking send times out)
152 2011-10-18: Simon Goldschmidt
153 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
154 consider netif->mtu, causes slow network
156 2011-10-18: Simon Goldschmidt
157 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
159 2011-10-18: Simon Goldschmidt
160 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
162 2011-10-17: Simon Goldschmidt
163 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
165 2011-10-13: Simon Goldschmidt
166 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
167 zero window is received) by starting the persist timer when a zero window is
168 received, not when we have more data queued for sending than fits into the
171 2011-10-13: Simon Goldschmidt
172 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
174 2011-10-13: Simon Goldschmidt
175 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
176 used and not all protocols are enabled
178 2011-10-12: Simon Goldschmidt
179 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
181 2011-10-09: Simon Goldschmidt
182 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
183 byte value when pcb->unacked != NULL
185 2011-10-09: Simon Goldschmidt
186 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
188 2011-09-27: Simon Goldschmidt
189 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
191 2011-09-27: Simon Goldschmidt
192 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
194 2011-09-27: Simon Goldschmidt
195 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
197 2011-09-24: Simon Goldschmidt
198 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
200 2011-09-23: Simon Goldschmidt
201 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
202 the last packet including FIN can lose data
204 2011-09-22: Simon Goldschmidt
205 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
208 2011-09-21: Simon Goldschmidt
209 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
212 2011-09-20: Simon Goldschmidt
213 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
215 2011-09-11: Simon Goldschmidt
216 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
219 2011-09-09: Simon Goldschmidt
220 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
223 2011-09-03: Simon Goldschmidt
224 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
225 is aggregated and sent to application
227 2011-09-01: Simon Goldschmidt
228 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
231 2011-09-01: Simon Goldschmidt
232 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
234 2011-08-24: Simon Goldschmidt
235 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
237 2011-08-24: Simon Goldschmidt
238 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
239 accept() on UDP connections
241 2011-08-24: Simon Goldschmidt
242 * sockets.h: fixed bug #34057 socklen_t should be a typedef
244 2011-08-24: Simon Goldschmidt
245 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
247 2011-08-24: Simon Goldschmidt
248 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
250 2011-08-24: Simon Goldschmidt
251 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
253 2011-08-22: Simon Goldschmidt
254 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
255 merely prevents nagle from not transmitting fast after closing.)
257 2011-07-22: Simon Goldschmidt
258 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
259 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
260 lwip_send() sends as much as possible for non-blocking sockets
262 2011-07-22: Simon Goldschmidt
263 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
264 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
265 at regular intervals from main level.
267 2011-07-21: Simon Goldschmidt
268 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
269 sending an ARP request when an ARP entry is used in the last minute before
272 2011-07-04: Simon Goldschmidt
273 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
275 2011-06-26: Simon Goldschmidt
276 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
277 updating its documentation only.
279 2011-06-26: Simon Goldschmidt
280 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
283 2011-06-26: Simon Goldschmidt
284 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
292 2011-03-27: Simon Goldschmidt
293 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
294 calculate it in tcp_zero_window_probe (the only place where it was used).
296 2010-11-21: Simon Goldschmidt
297 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
300 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
301 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
302 IP_MULTICAST_LOOP at socket- and raw-API level.
304 2010-06-16: Simon Goldschmidt
305 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
306 link-layer-addressed UDP traffic to be received while a netif is down (just
307 like DHCP during configuration)
309 2010-05-22: Simon Goldschmidt
310 * many many files: bug #27352: removed packing from ip_addr_t, the packed
311 version is now only used in protocol headers. Added global storage for
312 current src/dest IP address while in input functions.
314 2010-05-16: Simon Goldschmidt
315 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
316 calculation (and use them throughout the stack where applicable)
318 2010-05-16: Simon Goldschmidt
319 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
320 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
322 2010-05-16: Simon Goldschmidt
323 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
324 MEMP pool instead of the heap
326 2010-05-13: Simon Goldschmidt
327 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
328 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
329 packets to more than one pcb.
331 2010-05-02: Simon Goldschmidt
332 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
333 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
335 2010-04-30: Simon Goldschmidt
336 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
337 take a precalculated checksum, added pbuf_fill_chksum() to copy data
338 into a pbuf and at the same time calculating the checksum for that data
340 2010-04-29: Simon Goldschmidt
341 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
342 2-byte-aligned IP addresses and MAC addresses
344 2010-04-28: Patch by Bill Auerbach
345 * ip.c: Inline generating IP checksum to save a function call
347 2010-04-14: Simon Goldschmidt
348 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
349 tcpip_thread processes messages or timeouts to implement a watchdog.
351 2010-03-28: Simon Goldschmidt
352 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
353 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
355 2010-03-27: Simon Goldschmidt
356 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
357 etharp_query to prevent unnecessary function calls (inspired by
360 2010-03-20: Simon Goldschmidt
361 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
362 since the linker cannot do this automatically to save space.
364 2010-03-20: Simon Goldschmidt
365 * opt.h, etharp.c/.h: Added support for static ARP table entries
367 2010-03-14: Simon Goldschmidt
368 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
369 when creating TCP segments, not when (re-)transmitting them.
371 2010-03-07: Simon Goldschmidt
372 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
373 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
374 This should speed up receiving data on sockets as the select code in
375 event_callback is only executed when select is waiting.
377 2010-03-06: Simon Goldschmidt
378 * tcp_out.c: task #7013 (Create option to have all packets delivered to
379 netif->output in one piece): Always copy to try to create single pbufs
382 2010-03-06: Simon Goldschmidt
383 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
384 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
385 for tcp netconns to receive pbufs, not netbufs; use that function
388 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
389 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
390 Work on tcp_enqueue: Don't waste memory when chaining segments,
391 added option TCP_OVERSIZE to prevent creating many small pbufs when
392 calling tcp_write with many small blocks of data. Instead, pbufs are
393 allocated larger than needed and the space is used for later calls to
396 2010-02-21: Simon Goldschmidt
397 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
400 2010-02-21: Simon Goldschmidt
401 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
402 implementation of tcp to make API usage cleare to application programmers
404 2010-02-14: Simon Goldschmidt/Stephane Lesage
405 * ip_addr.h: Improved some defines working on ip addresses, added faster
406 macro to copy addresses that cannot be NULL
408 2010-02-13: Simon Goldschmidt
409 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
410 blocking send operation)
412 2010-02-12: Simon Goldschmidt
413 * sockets.c/.h: Added a minimal version of posix fctl() to have a
414 standardised way to set O_NONBLOCK for nonblocking sockets.
416 2010-02-12: Simon Goldschmidt
417 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
418 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
419 and dhcp work with user-allocated structs instead of callin mem_malloc
421 2010-02-12: Simon Goldschmidt/Jeff Barber
422 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
423 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
425 2010-02-12: Simon Goldschmidt
426 * sys layer: task #10139 (Prefer statically allocated memory): converted
427 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
428 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
429 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
430 to let sys.h use binary semaphores instead of mutexes - as before)
432 2010-02-09: Simon Goldschmidt (Simon Kallweit)
433 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
434 (Restart system timeout handling)
436 2010-02-09: Simon Goldschmidt
437 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
438 netif.c) - loopif does not have to be created by the port any more,
439 just define LWIP_HAVE_LOOPIF to 1.
441 2010-02-08: Simon Goldschmidt
442 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
443 inet_ntoa_r/ipaddr_ntoa_r
445 2010-02-08: Simon Goldschmidt
446 * netif.h: Added netif_s/get_igmp_mac_filter() macros
448 2010-02-05: Simon Goldschmidt
449 * netif.h: Added function-like macros to get/set the hostname on a netif
451 2010-02-04: Simon Goldschmidt
452 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
453 make changing the actual implementation behind the typedef easier.
455 2010-02-01: Simon Goldschmidt
456 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
457 for allocating memory when getaddrinfo() is called.
459 2010-01-31: Simon Goldschmidt
460 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
461 them once instead of parsing for every option. This also removes
462 the need for mem_malloc from dhcp_recv and makes it possible to
463 correctly retrieve the BOOTP file.
465 2010-01-30: simon Goldschmidt
466 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
469 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
470 * api.h, api_msg.c, sockets.c: Added except set support in select
473 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
474 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
475 Add non-blocking support for connect (partly from patch #6860),
476 plus many cleanups in socket & netconn API.
478 2010-01-27: Simon Goldschmidt
479 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
480 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
482 2010-01-26: Simon Goldschmidt
483 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
485 2010-01-14: Simon Goldschmidt
486 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
487 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
489 2010-01-13: Simon Goldschmidt
490 * mem.c: The heap now may be moved to user-defined memory by defining
491 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
492 (patch #6966 and bug #26133)
494 2010-01-10: Simon Goldschmidt (Bill Auerbach)
495 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
498 2010-01-10: Simon Goldschmidt
499 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
500 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
502 2009-12-31: Simon Goldschmidt
503 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
504 added timers.c/.h: Separated timer implementation from semaphore/mbox
505 implementation, moved timer implementation to timers.c/.h, timers are
506 now only called from tcpip_thread or by explicitly checking them.
509 2009-12-27: Simon Goldschmidt
510 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
511 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
516 2011-04-20: Simon Goldschmidt
517 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
519 2011-04-13: Simon Goldschmidt
520 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
521 using ports in the IANA private/dynamic range (49152 through 65535).
523 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
524 * etharp.h/.c: Fixed broken VLAN support.
526 2011-03-27: Simon Goldschmidt
527 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
528 pcbs) by checking if the pcb was bound (local_port != 0).
530 2011-03-27: Simon Goldschmidt
531 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
533 2011-03-27: Simon Goldschmidt
534 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
535 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
537 2011-03-27: Simon Goldschmidt
538 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
539 is present never times out) by starting retransmission timer before checking
542 2011-03-22: Simon Goldschmidt
543 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
544 calling sio_read_abort() if the file descriptor is valid.
546 2011-03-14: Simon Goldschmidt
547 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
548 more than once can render a socket useless) since it mainly involves changing
549 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
551 2011-03-13: Simon Goldschmidt
552 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
553 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
554 use EALRADY instead of -1
556 2011-03-13: Simon Goldschmidt
557 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
558 connection has been aborted by err_tcp (since this is not a normal closing
561 2011-03-13: Simon Goldschmidt
562 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
563 with pcb->state != CLOSED
565 2011-02-17: Simon Goldschmidt
566 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
569 2011-02-17: Simon Goldschmidt
570 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
572 2011-01-24: Simon Goldschmidt
573 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
575 2010-12-02: Simon Goldschmidt
576 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
578 2010-11-23: Simon Goldschmidt
579 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
580 LWIP_SO_RCVBUF and ioctl/FIONREAD.
582 2010-11-23: Simon Goldschmidt
583 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
584 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
586 2010-11-23: Simon Goldschmidt
587 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
588 refusing 'refused_data' again.
590 2010-11-22: Simon Goldschmidt
591 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
592 after a successful nonblocking connection.
594 2010-11-22: Simon Goldschmidt
595 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
596 must be sent link-local
598 2010-11-22: Simon Goldschmidt
599 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
602 2010-11-20: Simon Goldschmidt
603 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
605 2010-11-20: Simon Goldschmidt
606 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
607 resemble other stacks.
609 2010-11-20: Simon Goldschmidt
610 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
611 no-copy TCP writes will never succeed.
613 2010-11-20: Simon Goldschmidt
614 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
615 not match documentation: return ERR_ARG instead of ERR_VAL if not
616 initialized or wrong argument.
618 2010-10-20: Simon Goldschmidt
619 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
621 2010-10-05: Simon Goldschmidt
622 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
623 replugging the network cable after an AutoIP address was assigned.
625 2010-08-10: Simon Goldschmidt
626 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
628 2010-08-03: Simon Goldschmidt
629 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
631 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
632 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
633 endian architectures)
635 2010-07-28: Simon Goldschmidt
636 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
639 2010-07-27: Simon Goldschmidt
640 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
641 harm but never did anything
643 2010-07-21: Simon Goldschmidt
644 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
647 2010-07-16: Kieran Mansley
648 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
650 2010-07-10: Simon Goldschmidt
651 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
653 2010-06-30: Simon Goldschmidt
654 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
657 2010-06-28: Kieran Mansley
658 * timers.c remove unportable printing of C function pointers
660 2010-06-24: Simon Goldschmidt
661 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
662 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
664 2010-06-24: Simon Goldschmidt
665 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
666 implemented shutdown at socket level.
668 2010-06-21: Simon Goldschmidt
669 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
670 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
671 custom pbufs that reference other (original) pbufs. Additionally set
672 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
674 2010-06-15: Simon Goldschmidt
675 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
677 2010-06-14: Simon Goldschmidt
678 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
680 2010-06-12: Simon Goldschmidt
681 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
684 2010-05-17: Simon Goldschmidt
685 * netdb.c: Correctly NULL-terminate h_addr_list
687 2010-05-16: Simon Goldschmidt
688 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
689 "symbol already defined" i.e. when linking to winsock
691 2010-05-05: Simon Goldschmidt
692 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
695 2010-04-21: Simon Goldschmidt
696 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
699 2010-03-28: Luca Ceresoli
700 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
702 2010-03-27: Luca Ceresoli
703 * mib2.c: patch #7130: remove meaningless const qualifiers
705 2010-03-26: Simon Goldschmidt
706 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
708 2010-03-26: Simon Goldschmidt
709 * various files: Fixed compiling with different options disabled (TCP/UDP),
710 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
712 2010-03-25: Simon Goldschmidt
713 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
715 2010-03-25: Simon Goldschmidt
716 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
717 overrunning our rcv_wnd in ooseq case.
719 2010-03-22: Simon Goldschmidt
720 * tcp.c: tcp_listen() did not copy the pcb's prio.
722 2010-03-19: Simon Goldschmidt
723 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
725 2010-03-14: Simon Goldschmidt
726 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
727 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
728 and basing PBUF_LINK_HLEN on it.
730 2010-03-08: Simon Goldschmidt
731 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
732 when assiging routable address): when checking incoming packets and
733 aborting existing connection on address change, filter out link-local
736 2010-03-06: Simon Goldschmidt
737 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
739 2010-03-06: Simon Goldschmidt
740 * ipv4/ip.c: Don't try to forward link-local addresses
742 2010-03-06: Simon Goldschmidt
743 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
746 2010-03-05: Simon Goldschmidt
747 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
750 2010-03-05: Simon Goldschmidt
751 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
752 into multiple calls to tcp_write.
754 2010-02-21: Simon Goldschmidt
755 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
756 the implementation of DNS_USES_STATIC_BUF==1)
758 2010-02-20: Simon Goldschmidt
759 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
760 close() vs. shutdown(). Now the application does not get any more
761 recv callbacks after calling tcp_close(). Added tcp_shutdown().
763 2010-02-19: Simon Goldschmidt
764 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
765 confusion with realloc()
767 2010-02-15: Simon Goldschmidt/Stephane Lesage
768 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
771 2010-02-14: Simon Goldschmidt
772 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
773 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
774 admin-status of a netif are up
776 2010-02-14: Simon Goldschmidt
777 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
778 reception and is not really necessary
780 2010-02-14: Simon Goldschmidt
781 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
782 request was directed as us (RFC 826, Packet Reception), otherwise
783 only update existing entries; internalized some functions
785 2010-02-14: Simon Goldschmidt
786 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
787 disabled on netif used for PPPoE) by adding a new netif flag
788 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
789 device but prevents usage of ARP (so that ethernet_input can be used
792 2010-02-12: Simon Goldschmidt
793 * netif.c: netif_set_link_up/down: only do something if the link state
796 2010-02-12: Simon Goldschmidt/Stephane Lesage
797 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
800 2010-02-12: Simon Goldschmidt
801 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
803 2010-02-09: Simon Goldschmidt
804 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
805 (recv() makes receive window update for data that wasn't received by
808 2010-02-09: Simon Goldschmidt/Stephane Lesage
809 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
810 or any netconn_recv() error)
812 2010-02-09: Simon Goldschmidt
813 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
815 2010-02-09: Simon Goldschmidt
816 * netif.c: For loopback packets, adjust the stats- and snmp-counters
817 for the loopback netif.
819 2010-02-08: Simon Goldschmidt
820 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
821 since they are not used anywhere else.
823 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
824 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
825 (patch from bug #28798)
827 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
828 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
829 another bug when LWIP_RAND() returns zero.
831 2010-02-04: Simon Goldschmidt
832 * nearly every file: Use macros defined in ip_addr.h (some of them new)
833 to work with IP addresses (preparation for bug #27352 - Change ip_addr
834 from struct to typedef (u32_t) - and better code).
836 2010-01-31: Simon Goldschmidt
837 * netif.c: Don't call the link-callback from netif_set_up/down() since
838 this invalidly retriggers DHCP.
840 2010-01-29: Simon Goldschmidt
841 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
842 portability file inet.h and its contents from the stack: moved htonX-
843 functions to def.h (and the new def.c - they are not ipv4 dependent),
844 let inet.h depend on ip_addr.h and not the other way round.
845 This fixes bug #28732.
847 2010-01-28: Kieran Mansley
848 * tcp.c: Ensure ssthresh >= 2*MSS
850 2010-01-27: Simon Goldschmidt
851 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
852 callback can lead to accessing unallocated memory. As a consequence,
853 ERR_ABRT means the application has called tcp_abort()!
855 2010-01-25: Simon Goldschmidt
856 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
857 not implemented in SNMP): write-only or not-accessible are still
858 returned by getnext (though not by get)
860 2010-01-24: Simon Goldschmidt
861 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
862 not use reserved C/C++ keywords
864 2010-01-23: Simon Goldschmidt
865 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
868 2010-01-21: Simon Goldschmidt
869 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
870 if tcp_enqueue fails) both in raw- and netconn-API
872 2010-01-19: Simon Goldschmidt
873 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
875 2010-01-18: Iordan Neshev/Simon Goldschmidt
876 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
877 bugfix backports from 2.4.x.
879 2010-01-18: Simon Goldschmidt
880 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
882 2010-01-17: Simon Goldschmidt
883 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
884 task #10102: "netconn: clean up conn->err threading issues" by adding
885 error return value to struct api_msg_msg
887 2010-01-17: Simon Goldschmidt
888 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
889 to return err_t (bugs #27709 and #28087)
891 2010-01-14: Simon Goldschmidt
892 * ...: Use typedef for function prototypes throughout the stack.
894 2010-01-13: Simon Goldschmidt
895 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
896 window = 0) by correctly draining recvmbox/acceptmbox
898 2010-01-11: Simon Goldschmidt
899 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
900 erroneous callbacks) by copying the code from recent pppd
902 2010-01-10: Simon Goldschmidt
903 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
905 2010-01-10: Simon Goldschmidt
906 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
908 2010-01-08: Simon Goldschmidt
909 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
911 2010-01-08: Simon Goldschmidt
912 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
913 passed to dns_local_addhost() might be volatile
915 2010-01-07: Simon Goldschmidt
916 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
918 2010-01-06: Simon Goldschmidt
919 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
921 2009-12-31: Simon Goldschmidt
922 * many ppp files: Reorganised PPP source code from ucip structure to pppd
923 structure to easily compare our code against the pppd code (around v2.3.1)
925 2009-12-27: Simon Goldschmidt
926 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
934 2009-10-27 Simon Goldschmidt/Stephan Lesage
935 * netifapi.c/.h: Added netifapi_netif_set_addr()
937 2009-10-07 Simon Goldschmidt/Fabian Koch
938 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
939 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
941 2009-08-26 Simon Goldschmidt/Simon Kallweit
942 * slipif.c/.h: bug #26397: SLIP polling support
944 2009-08-25 Simon Goldschmidt
945 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
946 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
948 2009-08-25 Simon Goldschmidt
949 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
951 2009-08-24 Jakob Stoklund Olesen
952 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
953 to netif_set_link_up().
955 2009-08-23 Simon Goldschmidt
956 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
957 to a human-readable string.
961 2009-12-24: Kieran Mansley
962 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
965 2009-12-06: Simon Goldschmidt
966 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
967 be statically allocated (like in ucip)
969 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
970 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
972 2009-12-03: Simon Goldschmidt
973 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
974 could have non-zero length
976 2009-12-02: Simon Goldschmidt
977 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
978 tcp_input_pcb until after calling the pcb's callbacks
980 2009-11-29: Simon Goldschmidt
981 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
982 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
984 2009-11-29: Simon Goldschmidt
985 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
986 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
988 2009-11-26: Simon Goldschmidt
989 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
992 2009-11-26: Simon Goldschmidt
993 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
994 algorithm at PCB level
996 2009-11-22: Simon Goldschmidt
997 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
999 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1000 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1001 reusing time-wait pcb
1003 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1004 * sockets.c: Fixed bug #28062: Data received directly after accepting
1005 does not wake up select
1007 2009-11-11: Simon Goldschmidt
1008 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1010 2009-10-30: Simon Goldschmidt
1011 * opt.h: Increased default value for TCP_MSS to 536, updated default
1012 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1014 2009-10-28: Kieran Mansley
1015 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1016 to follow algorithm from TCP/IP Illustrated
1018 2009-10-27: Kieran Mansley
1019 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1021 2009-10-25: Simon Goldschmidt
1022 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1023 pcb->recv is NULL to keep rcv_wnd correct)
1025 2009-10-25: Simon Goldschmidt
1026 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1028 2009-10-23: Simon Goldschmidt (David Empson)
1029 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1031 2009-10-21: Simon Goldschmidt
1032 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1033 trailing 1 byte len (SYN/FIN)
1035 2009-10-21: Simon Goldschmidt
1036 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1038 2009-10-19: Simon Goldschmidt
1039 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1040 conditional code to assert where applicable), check pbuf length before
1041 testing for valid reply
1043 2009-10-19: Simon Goldschmidt
1044 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1045 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1047 2009-10-16: Simon Goldschmidt
1048 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1049 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1052 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1053 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1055 2009-10-15: Simon Goldschmidt
1056 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1059 2009-10-15: Simon Goldschmidt
1060 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1061 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1062 of network byte order
1064 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1065 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1066 which are not consecutive when retransmitting unacked segments
1068 2009-10-09 Simon Goldschmidt
1069 * opt.h: Fixed default values of some stats to only be enabled if used
1070 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1072 2009-08-30 Simon Goldschmidt
1073 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1074 function" by checking for loopback before calling ip_frag
1076 2009-08-25 Simon Goldschmidt
1077 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1079 2009-08-23 Simon Goldschmidt
1080 * ppp.c: bug #27078: Possible memory leak in pppInit()
1082 2009-08-23 Simon Goldschmidt
1083 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1086 2009-08-23 Simon Goldschmidt
1087 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1088 Fixed wrong parenthesis, added check in init.c
1090 2009-08-23 Simon Goldschmidt
1091 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1093 2009-08-23 Simon Goldschmidt
1094 * many ppp files: bug #27267: Added include to string.h where needed
1096 2009-08-23 Simon Goldschmidt
1097 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1104 2009-05-10 Simon Goldschmidt
1105 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1106 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1107 one pbuf to help MACs that don't support scatter-gather DMA.
1109 2009-05-09 Simon Goldschmidt
1110 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1111 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1113 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1114 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1115 extended info about the currently received packet.
1117 2009-04-27 Simon Goldschmidt
1118 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1120 2009-04-25 Simon Goldschmidt
1121 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1122 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1124 2009-04-21 Simon Goldschmidt
1125 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1126 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1127 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1128 as an external function for lookup.
1130 2009-04-15 Simon Goldschmidt
1131 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1133 2009-03-31 Kieran Mansley
1134 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1135 TCP timestamp options, off by default. Rework tcp_enqueue() to
1136 take option flags rather than specified option data
1138 2009-02-18 Simon Goldschmidt
1139 * cc.h: Added printf formatter for size_t: SZT_F
1141 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1142 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1145 2009-02-12 Simon Goldschmidt
1146 * init.h: Added LWIP_VERSION to get the current version of the stack
1148 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1149 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1150 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1153 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1154 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1155 is only used by UDPLITE at present, so conditionalise it.
1157 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1158 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1159 "seed" address. This should reduce AUTOIP conflicts if
1160 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1162 2008-10-02 Jonathan Larmour and Rishi Khan
1163 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1166 2008-06-30 Simon Goldschmidt
1167 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1168 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1169 mem_free to run between mem_malloc iterations. Added illegal counter for
1172 2008-06-27 Simon Goldschmidt
1173 * stats.h/.c, some other files: patch #6483: stats module improvement:
1174 Added defines to display each module's statistic individually, added stats
1175 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1177 2008-06-17 Simon Goldschmidt
1178 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1179 (define LWIP_ERR_T in cc.h)
1181 2008-06-17 Simon Goldschmidt
1182 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1185 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1186 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1187 modified version of patch # 6370: Moved loopif code to netif.c so that
1188 loopback traffic is supported on all netifs (all local IPs).
1189 Added option to limit loopback packets for each netifs.
1193 2009-08-12 Kieran Mansley
1194 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1195 out of window or out of order properly
1197 2009-08-12 Kieran Mansley
1198 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1200 2009-07-28 Simon Goldschmidt
1201 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1203 2009-07-27 Kieran Mansley
1204 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1206 2009-07-09 Kieran Mansley
1207 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1208 recv_avail and don't increment counters until message successfully
1211 2009-06-25 Kieran Mansley
1212 * api_msg.c api.h: BUG26722: initialise netconn write variables
1215 2009-06-25 Kieran Mansley
1216 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1218 2009-06-25 Kieran Mansley
1219 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1220 simultaneous close behaviour, and make snd_nxt have the same meaning
1223 2009-05-12 Simon Goldschmidt
1224 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1225 arp_table / uses etharp_query" by adding etharp_gratuitous()
1227 2009-05-12 Simon Goldschmidt
1228 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1229 to the IP header (used by igmp_ip_output_if)
1231 2009-05-06 Simon Goldschmidt
1232 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1233 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1235 2009-05-05 Simon Goldschmidt
1236 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1239 2009-05-04 Simon Goldschmidt
1240 * init.c: snmp was not initialized in lwip_init()
1242 2009-05-04 Frédéric Bernon
1243 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1245 2009-05-03 Simon Goldschmidt
1246 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1247 (and unsent->next == NULL)
1249 2009-05-02 Simon Goldschmidt
1250 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1251 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1253 2009-05-02 Simon Goldschmidt
1254 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1256 2009-05-01 Simon Goldschmidt
1257 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1259 2009-05-01 Simon Goldschmidt
1260 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1262 2009-04-29 Frédéric Bernon
1263 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1264 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1265 of broadcast packets even when this option wasn't set. Port maintainers
1266 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1267 If you want this option also filter broadcast on recv operations, you also
1268 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1270 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1271 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1272 DHCP/AUTOIP cooperation
1274 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1275 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1276 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1277 right place in tcp_output and tcp_rexmit).
1279 2009-04-25 Simon Goldschmidt
1280 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1281 when debugging": memp_sizes contained the wrong sizes (including sanity
1282 regions); memp pools for MEM_USE_POOLS were too small
1284 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1285 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1286 behavior, with with ip address string not ended by a '\0', a space or a
1289 2009-04-19 Simon Goldschmidt
1290 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1291 pcb->err is called, not pcb->connected (with an error code).
1293 2009-04-19 Simon Goldschmidt
1294 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1295 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1297 2009-04-19 Simon Goldschmidt
1298 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1299 in the header pbuf, not the data pbuf)
1301 2009-04-18 Simon Goldschmidt
1302 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1304 2009-04-15 Simon Goldschmidt
1305 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1307 2009-04-15 Simon Goldschmidt
1308 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1310 2009-04-15 Simon Goldschmidt
1311 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1312 ip_hinted_output() (for smaller code mainly)
1314 2009-04-15 Simon Goldschmidt
1315 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1317 2009-04-15 Simon Goldschmidt
1318 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1319 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1320 is big enough in dhcp_start
1322 2009-04-15 Simon Goldschmidt
1323 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1325 2009-04-15 Simon Goldschmidt
1326 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1328 2009-04-15 Simon Goldschmidt
1329 * sockets.c: bug #26121: set_errno can be overridden
1331 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1332 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1335 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1336 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1339 2009-03-31 Kieran Mansley
1340 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1341 updates are calculated and sent (BUG20515)
1343 * tcp_in.c: cope with SYN packets received during established states,
1344 and retransmission of initial SYN.
1346 * tcp_out.c: set push bit correctly when tcp segments are merged
1348 2009-03-27 Kieran Mansley
1349 * tcp_out.c set window correctly on probes (correcting change made
1352 2009-03-26 Kieran Mansley
1353 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1354 connections where no reset required (bug #25622)
1356 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1359 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1360 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1361 too small depending on MEM_ALIGNMENT
1363 2009-02-16 Simon Goldschmidt
1364 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1365 converted size argument of netconn_write to 'size_t'
1367 2009-02-16 Simon Goldschmidt
1368 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1369 by moving accept callback function pointer to TCP_PCB_COMMON
1371 2009-02-12 Simon Goldschmidt
1372 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1375 2009-02-11 Simon Goldschmidt
1376 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1378 2009-02-11 Simon Goldschmidt
1379 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1380 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1382 2009-02-10 Simon Goldschmidt
1383 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1384 Accepts_pending is decrease on a corresponding listen pcb when a connection
1385 in state SYN_RCVD is close.
1387 2009-01-28 Jonathan Larmour
1388 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1391 2008-12-19 Simon Goldschmidt
1392 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1394 2008-12-10 Tamas Somogyi, Frédéric Bernon
1395 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1396 port uses deleted netbuf.
1398 2008-10-18 Simon Goldschmidt
1399 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1402 2008-10-15 Simon Goldschmidt
1403 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1404 by packing the struct ip_reass_helper.
1406 2008-10-03 David Woodhouse, Jonathan Larmour
1407 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1409 2008-10-02 Jonathan Larmour
1410 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1411 padding is included.
1413 2008-09-30 Jonathan Larmour
1414 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1415 assertion check that addrlen isn't NULL.
1417 2008-09-30 Jonathan Larmour
1418 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1420 2008-08-26 Simon Goldschmidt
1421 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1422 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1424 2008-08-14 Simon Goldschmidt
1425 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1426 tcp_close returns != ERR_OK)
1428 2008-07-08 Frédéric Bernon
1429 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1430 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1432 2008-06-24 Jonathan Larmour
1433 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1434 if tcp_seg_copy fails.
1436 2008-06-17 Simon Goldschmidt
1437 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1438 and created defines for swapping bytes and folding u32 to u16.
1440 2008-05-30 Kieran Mansley
1441 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1442 rather than rcv_ann_wnd when deciding if packets are in-window.
1443 Contributed by <arasmussen@consultant.datasys.swri.edu>
1445 2008-05-30 Kieran Mansley
1446 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1447 passing as function pointers when MEM_LIBC_MALLOC is defined.
1449 2008-05-09 Jonathan Larmour
1450 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1451 stop it being treated as a fatal error.
1453 2008-04-15 Simon Goldschmidt
1454 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1457 2008-03-27 Simon Goldschmidt
1458 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1459 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1460 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1461 or heap memory from interrupt context
1463 2008-03-26 Simon Goldschmidt
1464 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1465 host sent a zero mss as TCP option.
1472 2008-03-10 Jonathan Larmour
1473 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1474 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1476 2008-01-22 Frédéric Bernon
1477 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1478 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1480 2008-01-14 Frédéric Bernon
1481 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1482 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1483 tcp_recv callback (see rawapi.txt).
1485 2008-01-14 Frédéric Bernon, Marc Chaland
1486 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1488 2008-01-12 Frédéric Bernon
1489 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1490 netconn::sem per netconn::op_completed like suggested for the task #7490
1491 "Add return value to sys_mbox_post".
1493 2008-01-12 Frédéric Bernon
1494 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1495 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1496 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1498 2008-01-10 Frédéric Bernon
1499 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1500 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1501 "blocking" ("block" parameter = 1).
1503 2008-01-10 Frédéric Bernon
1504 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1505 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1506 "Add return value to sys_mbox_post".
1508 2008-01-05 Frédéric Bernon
1509 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1510 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1511 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1512 indicate the number of pointers query by the mailbox. There is three defines
1513 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1514 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1515 parameter in your implementation, but to ignore it to keep the previous behavior.
1516 The new sys_mbox_trypost function return a value to know if the mailbox is
1517 full or if the message is posted. Take a look to sys_arch.txt for more details.
1518 This new function is used in tcpip_input (so, can be called in an interrupt
1519 context since the function is not blocking), and in recv_udp and recv_raw.
1521 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1522 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1523 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1524 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1525 documentation in the rawapi.txt file.
1527 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1528 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1530 2007-12-31 Frédéric Bernon, Luca Ceresoli
1531 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1532 in autoip". The change in etharp_raw could be removed, since all calls to
1533 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1534 wrong in the future.
1536 2007-12-30 Frédéric Bernon, Tom Evans
1537 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1538 Filtering" reported by Tom Evans.
1540 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1541 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1542 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1543 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1544 keep accepting new connections.
1546 2007-12-13 Frédéric Bernon
1547 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1548 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1550 2007-12-12 Frédéric Bernon
1551 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1552 are the one which have ram usage.
1554 2007-12-05 Frédéric Bernon
1555 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1556 set of variables (=0) or a local one (=1). In this last case, your port should
1557 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1558 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1560 2007-12-03 Simon Goldschmidt
1561 * ip.c: ip_input: check if a packet is for inp first before checking all other
1562 netifs on netif_list (speeds up packet receiving in most cases)
1564 2007-11-30 Simon Goldschmidt
1565 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1566 UDP: move a (connected) pcb selected for input to the front of the list of
1567 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1570 2007-11-28 Simon Goldschmidt
1571 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1573 2007-11-25 Simon Goldschmidt
1574 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1577 2007-11-24 Simon Goldschmidt
1578 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1579 to the new file netdb.c; included lwip_getaddrinfo.
1581 2007-11-21 Simon Goldschmidt
1582 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1583 based on the MTU of the netif used to send. Enabled by default. Disable by
1584 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1586 2007-11-19 Frédéric Bernon
1587 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1588 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1589 copy dns payload to parse the response), return an error if there is no place
1590 for a new query, and fix some minor problems.
1592 2007-11-16 Simon Goldschmidt
1593 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1594 removed files: core/inet.c, core/inet6.c
1595 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1596 inet and chksum part; changed includes in all lwIP files as appropriate
1598 2007-11-16 Simon Goldschmidt
1599 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1600 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1601 (gethostbyname/gethostbyname_r).
1603 2007-11-15 Jim Pettinato, Frédéric Bernon
1604 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1605 requests with RAW api interface. Initialization is done in lwip_init() with
1606 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1607 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1608 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1609 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1610 list with points to improve.
1612 2007-11-06 Simon Goldschmidt
1613 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1614 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1615 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1617 2007-11-06 Simon Goldschmidt
1618 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1619 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1620 implementation from netconn api applications.
1622 2007-11-03 Frédéric Bernon
1623 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1624 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1625 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1626 it. This is a first release which have to be improve for TCP. Note it used the
1627 netconn::recv_avail which need to be more "thread-safe" (note there is already
1628 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1630 2007-11-01 Frédéric Bernon, Marc Chaland
1631 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1632 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1633 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1634 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1635 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1637 2007-10-24 Frédéric Bernon
1638 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1639 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1640 some code (like we have talk in "patch #5919 : Create compile switch to remove
1641 select code"), but it could be done later.
1643 2007-10-08 Simon Goldschmidt
1644 * many files: Changed initialization: many init functions are not needed any
1645 more since we now rely on the compiler initializing global and static
1648 2007-10-06 Simon Goldschmidt
1649 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1650 to enqueue the received pbufs so that multiple packets can be reassembled
1651 simultaneously and no static reassembly buffer is needed.
1653 2007-10-05 Simon Goldschmidt
1654 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1655 all netifs (or ports) can use it.
1657 2007-10-05 Frédéric Bernon
1658 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1659 common function to reduce a little bit the footprint (for all functions using
1660 only the "netif" parameter).
1662 2007-10-03 Frédéric Bernon
1663 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1664 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1665 a little bit the footprint (for all functions using only the "netif" parameter).
1667 2007-09-15 Frédéric Bernon
1668 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1669 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1670 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1671 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1673 2007-09-10 Frédéric Bernon
1674 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1675 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1676 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1677 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1678 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1679 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1680 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1681 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1682 when it's queried (any direct call to "sysuptime" is changed by a call to
1683 snmp_get_sysuptime).
1685 2007-09-09 Frédéric Bernon, Bill Florac
1686 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1687 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1688 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1689 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1690 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1691 the next query message to receive the matching multicast streams).
1693 2007-09-08 Frédéric Bernon
1694 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1695 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1696 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1697 Enable to access to these fields with LWIP_TCP=0.
1699 2007-09-05 Frédéric Bernon
1700 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1701 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1702 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1703 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1704 help to reduce footprint, and to reduce "visibility" on the Internet.
1706 2007-09-05 Frédéric Bernon, Bill Florac
1707 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1708 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1709 parameters have to be provided: a task name, and a task stack size. For this
1710 one, since it's platform dependant, you could define the best one for you in
1711 your lwipopts.h. For port maintainers, you can just add these new parameters
1712 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1715 2007-09-05 Frédéric Bernon
1716 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1717 inside init.c for task #7142 "Sanity check user-configurable values".
1719 2007-09-04 Frédéric Bernon, Bill Florac
1720 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1721 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1722 value). It will avoid potential fragmentation problems, use a counter to know
1723 how many times a group is used on an netif, and free it when all applications
1724 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1725 check if LWIP_IGMP!=0).
1727 2007-09-03 Frédéric Bernon
1728 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1729 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1730 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1731 and/or the "interface" field (for netconn layer), for join/leave operations.
1732 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1733 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1735 2007-08-30 Frédéric Bernon
1736 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1737 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1738 with other API (application based on raw API, or future "socket2" API). Ports
1739 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1741 2007-08-30 Frédéric Bernon, Jonathan Larmour
1742 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1743 user-configurable values".
1745 2007-08-29 Frédéric Bernon
1746 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1747 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1748 spirit than the others modules. Modify some IGMP debug traces.
1750 2007-08-29 Frédéric Bernon
1751 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1752 Add lwip_init function to regroup all modules initializations, and to provide
1753 a place to add code for task #7142 "Sanity check user-configurable values".
1754 Ports maintainers should remove direct initializations calls from their code,
1755 and add init.c in their makefiles. Note that lwip_init() function is called
1756 inside tcpip_init, but can also be used by raw api users since all calls are
1757 disabled when matching options are disabled. Also note that their is new options
1758 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1760 2007-08-26 Marc Boucher
1761 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1762 since they can under certain circumstances be called with an invalid conn
1763 pointer after the connection has been closed (and conn has been freed).
1765 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1766 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1767 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1769 2007-08-22 Frédéric Bernon
1770 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1771 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1773 2007-08-22 Frédéric Bernon
1774 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1775 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1776 name is tcpip_input (we keep the name of 1.2.0 function).
1778 2007-08-17 Jared Grubb
1779 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1780 settings into new memp_std.h and optional user file lwippools.h. This adds
1781 more dynamic mempools, and allows the user to create an arbitrary number of
1782 mempools for mem_malloc.
1784 2007-08-16 Marc Boucher
1785 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1786 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1787 close the connection.
1789 2007-08-16 Marc Boucher
1790 * sockets.c: lwip_accept(): check netconn_peer() error return.
1792 2007-08-16 Marc Boucher
1793 * mem.c, mem.h: Added mem_calloc().
1795 2007-08-16 Marc Boucher
1796 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1797 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1798 and starving other message types.
1799 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1801 2007-08-16 Marc Boucher
1802 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1803 type and flgs (later renamed to flags).
1804 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1805 Improved lwip_recvfrom(). TCP push now propagated.
1807 2007-08-16 Marc Boucher
1808 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1811 2007-08-16 Marc Boucher
1812 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1813 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1814 Added PPPoE support and various PPP improvements.
1816 2007-07-25 Simon Goldschmidt
1817 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1818 making netbuf_copy_partial use this function.
1820 2007-07-25 Simon Goldschmidt
1821 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1822 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1825 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1826 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1827 a link callback in the netif struct, and functions to handle it. Be carefull
1828 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1829 if you want to be sure to be compatible with future changes...
1831 2007-06-30 Frédéric Bernon
1832 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1834 2007-06-21 Simon Goldschmidt
1835 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1836 LWIP_AUTOIP =0 and =1 to remove redundant code.
1838 2007-06-21 Simon Goldschmidt
1839 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1840 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1841 heap. This both prevents memory fragmentation and gives a higher speed
1842 at the cost of more memory consumption. Turned off by default.
1844 2007-06-21 Simon Goldschmidt
1845 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1846 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1847 int to be able to send a bigger buffer than 64K with one time (mainly
1848 used from lwip_send).
1850 2007-06-21 Simon Goldschmidt
1851 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1852 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1854 2007-06-21 Simon Goldschmidt
1855 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1856 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1857 changes on low memory or empty send-buffer.
1859 2007-06-18 Simon Goldschmidt
1860 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1861 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1862 used for ethernet and struct eth_addr already had a defined length of 6).
1864 2007-06-17 Simon Goldschmidt
1865 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1866 to disable UDP checksum generation on transmit.
1868 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1869 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1870 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1871 this macro to check "conn" parameter in api_msg.c functions.
1873 2007-06-11 Simon Goldschmidt
1874 * sockets.c, sockets.h: Added UDP lite support for sockets
1876 2007-06-10 Simon Goldschmidt
1877 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1878 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1881 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1882 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1883 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1884 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1885 (see TODO mark in the source code).
1887 2007-06-09 Simon Goldschmidt
1888 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1889 etharp_output() to match netif->output so etharp_output() can be used
1890 directly as netif->output to save one function call.
1892 2007-06-08 Simon Goldschmidt
1893 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1894 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1895 added initialization of those to ethernetif, slipif and loopif.
1897 2007-05-18 Simon Goldschmidt
1898 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1899 (defaulting to off for now) that can be set to 0 to send fragmented
1900 packets by passing PBUF_REFs down the stack.
1902 2007-05-23 Frédéric Bernon
1903 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1904 connections, such present in patch #5959.
1906 2007-05-23 Frédéric Bernon
1907 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1908 code in only one part...
1910 2007-05-18 Simon Goldschmidt
1911 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1912 elements to overflow. This is achieved by adding some bytes before and after
1913 each pool element (increasing their size, of course), filling them with a
1914 prominent value and checking them on freeing the element.
1915 Set it to 2 to also check every element in every pool each time memp_malloc()
1916 or memp_free() is called (slower but more helpful).
1918 2007-05-10 Simon Goldschmidt
1919 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1920 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1923 2007-05-11 Frédéric Bernon
1924 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1925 Include a function pointer instead of a table index in the message to reduce
1926 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1927 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1929 2007-05-10 Simon Goldschmidt
1930 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1931 \ extern "C" {' in all header files. Now you can write your application using
1932 the lwIP stack in C++ and simply #include the core files. Note I have left
1933 out the netif/ppp/*h header files for now, since I don't know which files are
1934 included by applications and which are for internal use only.
1936 2007-05-09 Simon Goldschmidt
1937 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1938 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1939 situations where some compilers might inline the copy and save a function
1940 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1942 2007-05-08 Simon Goldschmidt
1943 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1944 to be overriden in case the C-library malloc implementation is not protected
1945 against concurrent access.
1947 2007-05-04 Simon Goldschmidt (Atte Kojo)
1948 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1949 multiple packets to the same host.
1951 2007-05-04 Frédéric Bernon, Jonathan Larmour
1952 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1953 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1954 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1955 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1956 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1957 these fields are now renamed "addr" & "port".
1959 2007-04-11 Jonathan Larmour
1960 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1961 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1962 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1963 by the port in sys_arch.h if desired.
1965 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1966 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1967 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1968 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1970 2007-04-05 Frédéric Bernon
1971 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1973 2007-04-04 Simon Goldschmidt
1974 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1975 use this for and architecture-independent form to tell the compiler you intentionally
1976 are not using this variable. Can be overriden in cc.h.
1978 2007-03-28 Frédéric Bernon
1979 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1980 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1981 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1982 It will be used by DHCP to register a client hostname, but can also be use when you call
1985 2007-03-28 Frédéric Bernon
1986 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1987 initialize a network interface's flag with. It tell this interface is an ethernet
1988 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1989 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1991 2007-03-26 Frédéric Bernon, Jonathan Larmour
1992 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1993 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1994 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1995 is done in tcpip_init function.
1997 2007-03-22 Frédéric Bernon
1998 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1999 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2000 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2001 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2002 but never used. Fix msg_in.c with the correct #if test for a stat display.
2004 2007-03-21 Kieran Mansley
2005 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2006 Provides callback on netif up/down state change.
2008 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2009 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2010 ip.c, netif.h, tcpip.c, opt.h:
2011 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2012 filter per all network interfaces. Declare a new function in netif to enable to
2013 control the MAC filter (to reduce lwIP traffic processing).
2015 2007-03-11 Frédéric Bernon
2016 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2017 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2018 unless you know what you're doing (default are RFC1122 compliant). Note
2019 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2021 2007-03-08 Frédéric Bernon
2022 * tcp.h: Keepalive values can be configured at compile time, but don't change
2023 this unless you know what you're doing (default are RFC1122 compliant).
2025 2007-03-08 Frédéric Bernon
2026 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2027 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2028 on UDP sockets/netconn.
2030 2007-03-08 Simon Goldschmidt
2031 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2033 2007-03-06 Frédéric Bernon
2034 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2035 Implement SO_RCVTIMEO on UDP sockets/netconn.
2037 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2038 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2039 on the stack and remove the API msg type from memp
2041 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2042 * sockets.h, sockets.c: Move socket initialization to new
2043 lwip_socket_init() function.
2044 NOTE: this changes the API with ports. Ports will have to be
2045 updated to call lwip_socket_init() now.
2047 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2048 * api_lib.c: Use memcpy in netbuf_copy_partial.
2053 2008-03-17 Frédéric Bernon, Ed Kerekes
2054 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2055 some problems to fill the IP header on some targets, use now the
2056 ip.h macros to do it).
2058 2008-03-13 Frédéric Bernon
2059 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2060 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2061 TCP connection caused a crash. Note that using (lwip_)recvfrom
2062 like this is a bit slow and that using (lwip)getpeername is the
2063 good lwip way to do it (so, using recv is faster on tcp sockets).
2065 2008-03-12 Frédéric Bernon, Jonathan Larmour
2066 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2067 recv_raw() does not consume data", and the ping sample (with
2068 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2069 returned the IP payload, without the IP header).
2071 2008-03-04 Jonathan Larmour
2072 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2073 and/or warnings on some systems where mem_size_t and size_t differ.
2074 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2076 2008-03-04 Kieran Mansley (contributions by others)
2077 * Numerous small compiler error/warning fixes from contributions to
2078 mailing list after 1.3.0 release candidate made.
2080 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2081 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2083 2008-01-15 Kieran Mansley
2084 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2085 prevented from sending by a small send window, not just a zero
2088 2008-01-09 Jonathan Larmour
2089 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2090 conflict with Linux system headers.
2092 2008-01-06 Jonathan Larmour
2093 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2094 address entirely on receiving a DHCPNAK, and restarting discovery.
2096 2007-12-21 Simon Goldschmidt
2097 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2098 is not protected" by using new macros for interlocked access to modify/test
2099 netconn->recv_avail.
2101 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2102 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2104 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2105 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2106 of silly window avoidance and prevent lwIP from shrinking the window)
2108 2007-12-04 Simon Goldschmidt
2109 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2110 data packet was lost): add assert that all segment lists are empty in
2111 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2112 state from LAST_ACK in tcp_process
2114 2007-12-02 Simon Goldschmidt
2115 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2116 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2117 has to be set to 0 in lwipopts.h
2119 2007-12-02 Simon Goldschmidt
2120 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2121 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2122 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2123 This is a fix for thread-safety and allocates all items needed for a netconn
2124 when the netconn is created.
2126 2007-11-30 Simon Goldschmidt
2127 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2128 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2129 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2130 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2132 2007-11-27 Simon Goldschmidt
2133 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2134 letting ip_route only use netifs that are up.
2136 2007-11-27 Simon Goldschmidt
2137 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2138 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2139 sockets block most operations once they have seen a fatal error.
2141 2007-11-27 Simon Goldschmidt
2142 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2143 netif to send as an argument (to be able to send on netifs that are down).
2145 2007-11-26 Simon Goldschmidt
2146 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2149 2007-11-21 Simon Goldschmidt
2150 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2151 Fixed the nagle algorithm; nagle now also works for all raw API applications
2152 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2154 2007-11-12 Frédéric Bernon
2155 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2156 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2157 context in do_getaddr.
2159 2007-11-10 Simon Goldschmidt
2160 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2161 happen any time). Now the packet simply isn't enqueued when out of memory.
2163 2007-11-01 Simon Goldschmidt
2164 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2165 TCP_MSS if that is smaller) as long as no MSS option is received from the
2168 2007-11-01 Simon Goldschmidt
2169 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2170 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2171 sending our configured TCP_MSS instead of the one received).
2173 2007-11-01 Simon Goldschmidt
2174 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2175 calculated based on the configured TCP_MSS, not on the MSS option received
2178 2007-10-09 Simon Goldschmidt
2179 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2180 short and also was generated wrong if checksum coverage != tot_len;
2181 receive: checksum was calculated wrong if checksum coverage != tot_len
2183 2007-10-08 Simon Goldschmidt
2184 * mem.c: lfree was not updated in mem_realloc!
2186 2007-10-07 Frédéric Bernon
2187 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2188 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2189 this change cause an API breakage for netconn_addr, since a parameter
2190 type change. Any compiler should cause an error without any changes in
2191 yours netconn_peer calls (so, it can't be a "silent change"). It also
2192 reduce a little bit the footprint for socket layer (lwip_getpeername &
2193 lwip_getsockname use now a common lwip_getaddrname function since
2194 netconn_peer & netconn_addr have the same parameters).
2196 2007-09-20 Simon Goldschmidt
2197 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2198 by checking tcp_tw_pcbs also
2200 2007-09-19 Simon Goldschmidt
2201 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2203 2007-09-15 Mike Kleshov
2204 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2206 2007-09-06 Frédéric Bernon
2207 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2208 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2209 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2210 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2212 2007-08-30 Frédéric Bernon
2213 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2214 and fix some coding style.
2216 2007-08-28 Frédéric Bernon
2217 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2218 kind of packets. These packets are considered like Ethernet packets (payload
2219 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2220 are considered like IP packets (payload pointing to iphdr).
2222 2007-08-27 Frédéric Bernon
2223 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2224 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2225 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2227 2007-08-24 Kieran Mansley
2228 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2229 compiler (Paradigm C++)
2231 2007-08-09 Frédéric Bernon, Bill Florac
2232 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2233 Introduce IGMP_STATS to centralize statistics management.
2235 2007-08-09 Frédéric Bernon, Bill Florac
2236 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2237 packet on a udp pcb binded on an netif's IP address, and not on "any".
2239 2007-08-09 Frédéric Bernon, Bill Florac
2240 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2241 This is mainly on using lookup/lookfor, and some coding styles...
2243 2007-07-26 Frédéric Bernon (and "thedoctor")
2244 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2246 2007-07-25 Simon Goldschmidt
2247 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2248 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2249 (tcp_output is called again later from tcp timers).
2251 2007-07-25 Simon Goldschmidt
2252 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2253 copy_from_pbuf, which illegally modified the given pbuf.
2255 2007-07-25 Simon Goldschmidt
2256 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2257 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2259 2007-07-24 Simon Goldschmidt
2260 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2261 correct state (must be CLOSED).
2263 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2264 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2265 allocation. It now returns NULL.
2267 2007-07-13 Frédéric Bernon
2268 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2271 2007-07-13 Frédéric Bernon
2272 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2273 because current code doesn't follow rawapi.txt documentation.
2275 2007-07-13 Kieran Mansley
2276 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2277 out of sequence processing of received packets
2279 2007-07-03 Simon Goldschmidt
2280 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2281 assumption is made that this pbuf is in one piece (i.e. not chained). These
2282 assumptions clash with the possibility of converting to fully pool-based
2283 pbuf implementations, where PBUF_RAM pbufs might be chained.
2285 2007-07-03 Simon Goldschmidt
2286 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2287 when closing tcp netconns: removed conn->sem, less context switches when
2288 closing, both netconn_close and netconn_delete should safely close tcp
2291 2007-07-02 Simon Goldschmidt
2292 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2293 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2294 to cache ARP table indices with each pcb instead of single-entry cache for
2297 2007-07-02 Simon Goldschmidt
2298 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2299 warnings when assigning to smaller types.
2301 2007-06-28 Simon Goldschmidt
2302 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2304 2007-06-28 Simon Goldschmidt
2305 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2306 a segment contained chained pbufs)
2308 2007-06-28 Frédéric Bernon
2309 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2310 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2311 possible to define this macro in your own lwipopts.h to always use C library's
2312 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2314 2007-06-28 Frédéric Bernon
2315 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2316 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2317 in api_lib/api_msg (use pointers and not type with table, etc...)
2319 2007-06-26 Simon Goldschmidt
2320 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2322 2007-06-25 Simon Goldschmidt
2323 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2324 for udp packets with no matching pcb.
2326 2007-06-25 Simon Goldschmidt
2327 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2328 could get udp input packets if the remote side matched.
2330 2007-06-13 Simon Goldschmidt
2331 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2332 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2334 2007-06-13 Simon Goldschmidt
2335 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2336 -> netconn_new_..() does not allocate a new connection for unsupported
2339 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2340 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2341 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2343 2007-06-13 Frédéric Bernon, Matthias Weisser
2344 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2345 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2346 some macro names collision with some OS macros.
2348 2007-06-11 Simon Goldschmidt
2349 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2350 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2351 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2354 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2355 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2356 where TCP flags wasn't initialized in tcp_keepalive.
2358 2007-06-03 Simon Goldschmidt
2359 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2360 registered, p->payload was modified without modifying p->len if sending
2361 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2363 2007-06-03 Simon Goldschmidt
2364 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2365 re-used the input pbuf even if that didn't have enough space to include the
2366 link headers. Now the space is tested and a new pbuf is allocated for the
2367 echo response packet if the echo request pbuf isn't big enough.
2369 2007-06-01 Simon Goldschmidt
2370 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2372 2007-05-23 Frédéric Bernon
2373 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2374 allocated by do_listen if success) and netconn_accept errors handling. In
2375 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2376 by ASSERT, except for netconn_delete.
2378 2007-05-23 Frédéric Bernon
2379 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2380 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2381 directly close the recvmbox).
2383 2007-05-22 Simon Goldschmidt
2384 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2385 bound but unconnected (and non-listening) tcp_pcbs.
2387 2007-05-22 Frédéric Bernon
2388 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2389 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2390 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2391 like "sys_timeout" in their application threads.
2393 2007-05-22 Frédéric Bernon
2394 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2395 which parameters are used by which do_xxx function, and to avoid "misusing"
2396 parameters (patch #5938).
2398 2007-05-22 Simon Goldschmidt
2399 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2400 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2401 is only 8 bits wide. This affects the api, as there, the protocol was
2404 2007-05-18 Simon Goldschmidt
2405 * memp.c: addition to patch #5913: smaller pointer was returned but
2406 memp_memory was the same size -> did not save memory.
2408 2007-05-16 Simon Goldschmidt
2409 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2412 2007-05-16 Simon Goldschmidt
2413 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2414 as the one of the netif used for sending to prevent sending from old
2415 addresses after a netif address gets changed (partly fixes bug #3168).
2417 2007-05-16 Frédéric Bernon
2418 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2419 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2420 tcpip_init) because we have to be sure that network interfaces are already
2421 added (mac filter is updated only in igmp_init for the moment).
2423 2007-05-16 Simon Goldschmidt
2424 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2425 into sys_arch_sem_wait calls to prevent timers from running while waiting
2426 for the heap. This fixes bug #19167.
2428 2007-05-13 Simon Goldschmidt
2429 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2430 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2433 2007-05-07 Simon Goldschmidt
2434 * mem.c: Another attempt to fix bug #17922.
2436 2007-05-04 Simon Goldschmidt
2437 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2438 implementation so that it can be reused (don't allocate the target
2439 pbuf inside pbuf_copy()).
2441 2007-05-04 Simon Goldschmidt
2442 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2443 to save a little RAM (next pointer of memp is not used while not in pool).
2446 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2449 2007-04-23 Simon Goldschmidt
2450 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2451 in NULL reference for incoming TCP packets". Loopif has to be configured
2452 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2453 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2454 putting packets on a list that is fed to the stack by calling loopif_poll()
2455 (single-thread / NO_SYS / polling environment where e.g.
2456 netif->input() = ip_input).
2458 2007-04-17 Jonathan Larmour
2459 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2460 the difference between two u16_t's.
2461 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2462 MEMP_NUM_NETCONN in sockets.c right now.
2464 2007-04-12 Jonathan Larmour
2465 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2467 2007-04-12 Kieran Mansley
2468 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2469 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2471 2007-04-11 Simon Goldschmidt
2472 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2473 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2474 pbuf.c: removed functions no needed any more (by etharp).
2476 2007-04-11 Kieran Mansley
2477 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2478 "Constant is long" warnings with 16bit compilers. Contributed by
2479 avatar@mmlab.cse.yzu.edu.tw
2481 2007-04-05 Frédéric Bernon, Jonathan Larmour
2482 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2483 the mailbox is active". Now, the post is only done during a connect, and do_send,
2484 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2486 2007-04-03 Frédéric Bernon
2487 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2488 packets. See patch #5834.
2490 2007-03-30 Frédéric Bernon
2491 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2492 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2494 2007-03-30 Frédéric Bernon
2495 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2496 others environment defines (these were too "generic").
2498 2007-03-28 Frédéric Bernon
2499 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2500 result and can cause a crash. lwip_send now check netbuf_ref result.
2502 2007-03-28 Simon Goldschmidt
2503 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2504 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2505 defined. This is the way it should have been already (looking at
2508 2007-03-28 Kieran Mansley
2509 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2510 IP and TCP headers *and* physical link headers
2512 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2513 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2514 to send some garbage. It is not a definitive solution, but the patch does solve
2515 the problem for most cases.
2517 2007-03-22 Frédéric Bernon
2518 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2520 2007-03-22 Frédéric Bernon
2521 * api_lib.c: somes resources couldn't be freed if there was errors during
2522 netconn_new_with_proto_and_callback.
2524 2007-03-22 Frédéric Bernon
2525 * ethernetif.c: update netif->input calls to check return value. In older ports,
2526 it's a good idea to upgrade them, even if before, there could be another problem
2527 (access to an uninitialized mailbox).
2529 2007-03-21 Simon Goldschmidt
2530 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2531 by casting to unsigned).
2533 2007-03-21 Frédéric Bernon
2534 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2535 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2536 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2537 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2538 faster and more reliable communication between api_lib and tcpip.
2540 2007-03-21 Frédéric Bernon
2541 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2543 2007-03-21 Frédéric Bernon
2544 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2546 2007-03-21 Kieran Mansley
2547 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2550 2007-03-21 Kieran Mansley
2551 * Fix all uses of pbuf_header to check the return value. In some
2552 cases just assert if it fails as I'm not sure how to fix them, but
2553 this is no worse than before when they would carry on regardless
2556 2007-03-21 Kieran Mansley
2557 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2558 comment out missing header include in icmp.c
2560 2007-03-20 Frédéric Bernon
2561 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2562 synchronized with memp.h.
2564 2007-03-20 Frédéric Bernon
2565 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2566 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2567 network interfaces. Also fix a compiler warning.
2569 2007-03-20 Kieran Mansley
2570 * udp.c: Only try and use pbuf_header() to make space for headers if
2571 not a ROM or REF pbuf.
2573 2007-03-19 Frédéric Bernon
2574 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2577 2007-03-19 Frédéric Bernon
2578 * Remove unimplemented "memp_realloc" function from memp.h.
2580 2007-03-11 Simon Goldschmidt
2581 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2584 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2585 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2586 (missing `const' qualifier in socket functions), to get more compatible to
2587 standard POSIX sockets.
2589 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2590 * sockets.c: Add asserts inside bind, connect and sendto to check input
2591 parameters. Remove excessive set_errno() calls after get_socket(), because
2592 errno is set inside of get_socket(). Move last sock_set_errno() inside
2595 2007-03-09 Simon Goldschmidt
2596 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2597 was allocated too small.
2599 2007-03-06 Simon Goldschmidt
2600 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2601 the stack from concurrent access.
2603 2007-03-06 Frédéric Bernon, Dmitry Potapov
2604 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2605 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2607 2007-03-06 Simon Goldschmidt
2608 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2609 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2611 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2612 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2613 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2614 Allow to do ARP processing for incoming packets inside tcpip_thread
2615 (protecting ARP layer against concurrent access). You can also disable
2616 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2617 Older ports have to use tcpip_ethinput.
2619 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2620 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2621 from pointer target type"
2623 2007-03-05 Frédéric Bernon
2624 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2625 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2627 2007-03-04 Frédéric Bernon
2628 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2631 2007-03-04 Frédéric Bernon
2632 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2634 The api_msg struct stay on the stack (not moved to netconn struct).
2636 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2637 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2638 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2639 Also fixed cast warning in pbuf_alloc()
2641 2007-03-04 Simon Goldschmidt
2642 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2643 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2645 2007-03-03 Frédéric Bernon
2646 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2647 It is static, and never used in udp.c except udp_init().
2649 2007-03-02 Simon Goldschmidt
2650 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2651 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2652 initialized before tcpip_thread is running (e.g. before OS is started)
2654 2007-03-02 Frédéric Bernon
2655 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2658 2007-02-28 Kieran Mansley
2659 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2660 outside the region of the pbuf by pbuf_header()
2662 2007-02-28 Kieran Mansley
2663 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2664 when supplied timeout is also non-zero
2668 2006-12-05 Leon Woestenberg
2669 * CHANGELOG: Mention STABLE-1.2.0 release.
2673 2006-12-01 Christiaan Simons
2674 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2675 Note this is a workaround. Currently I have no other options left.
2677 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2678 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2679 to include/lwip/opt.h.
2680 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2681 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2682 * opt.h: Add above new options.
2684 2006-08-18 Christiaan Simons
2685 * tcp_{in,out}.c: added SNMP counters.
2686 * ipv4/ip.c: added SNMP counters.
2687 * ipv4/ip_frag.c: added SNMP counters.
2689 2006-08-08 Christiaan Simons
2690 * etharp.{c,h}: added etharp_find_addr() to read
2691 (stable) ethernet/IP address pair from ARP table
2693 2006-07-14 Christiaan Simons
2694 * mib_structs.c: added
2695 * include/lwip/snmp_structs.h: added
2696 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2698 2006-07-06 Christiaan Simons
2699 * snmp/asn1_{enc,dec}.c added
2701 * snmp/msg_{in,out}.c added
2702 * include/lwip/snmp_asn1.h added
2703 * include/lwip/snmp_msg.h added
2704 * doc/snmp_agent.txt added
2706 2006-03-29 Christiaan Simons
2707 * inet.c, inet.h: Added platform byteswap support.
2708 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2709 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2713 2006-11-30 Christiaan Simons
2714 * dhcp.c: Fixed false triggers of request_timeout.
2716 2006-11-28 Christiaan Simons
2717 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2719 2006-10-11 Christiaan Simons
2720 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2721 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2722 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2723 identifier from 170 to 136 (bug #17574).
2725 2006-10-10 Christiaan Simons
2726 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2728 2006-08-17 Christiaan Simons
2729 * udp.c: Fixed bug #17200, added check for broadcast
2730 destinations for PCBs bound to a unicast address.
2732 2006-08-07 Christiaan Simons
2733 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2735 2006-06-27 Christiaan Simons
2736 * api_msg.c: Applied patch for cold case (bug #11135).
2737 In accept_function() ensure newconn->callback is always initialized.
2739 2006-06-15 Christiaan Simons
2740 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2741 facilitate printing of mem_size_t and u16_t statistics.
2743 2006-06-14 Christiaan Simons
2744 * api_msg.c: Applied patch #5146 to handle allocation failures
2745 in accept() by Kevin Lawson.
2747 2006-05-26 Christiaan Simons
2748 * api_lib.c: Removed conn->sem creation and destruction
2749 from netconn_write() and added sys_sem_new to netconn_new_*.
2753 2006-03-03 Christiaan Simons
2754 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2755 access and added pbuf_alloc() return value checks.
2757 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2758 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2759 now handled by the checksum routine properly.
2761 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2762 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2763 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2765 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2766 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2767 submitted by Mitrani Hiroshi.
2769 2005-12-15 Christiaan Simons
2770 * inet.c: Disabled the added summing routine to preserve code space.
2772 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2773 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2774 Added Curt McDowell's optimized checksumming routine for future
2775 inclusion. Need to create test case for unaliged, aligned, odd,
2776 even length combination of cases on various endianess machines.
2778 2005-12-09 Christiaan Simons
2779 * inet.c: Rewrote standard checksum routine in proper portable C.
2781 2005-11-25 Christiaan Simons
2782 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2783 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2784 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2786 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2787 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2788 routine by Peter Jolasson.
2789 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2791 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2792 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2793 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2795 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2796 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2798 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2799 * udp.c: UDP pcb->recv() was called even when it was NULL.
2803 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2804 * etharp.*: Disabled multiple packets on the ARP queue.
2805 This clashes with TCP queueing.
2807 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2808 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2809 Halved the ARP period, doubled the period counts.
2810 ETHARP_MAX_PENDING now should be at least 2. This prevents
2811 the counter from reaching 0 right away (which would allow
2812 too little time for ARP responses to be received).
2814 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2815 * dhcp.c: Decline messages were not multicast but unicast.
2816 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2817 Do not try hard to insert arbitrary packet's source address,
2818 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2819 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2820 querying an address will see it appear in the cache (DHCP could
2821 suffer from this when a server invalidly gave an in-use address.)
2822 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2823 comparing network addresses (identifiers), not the network masks
2825 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2826 IP address actually belongs to the network of the given interface.
2828 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2829 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2833 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2834 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2835 even if one is already pending, if the rcv_wnd is above a threshold
2836 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2837 delayed ACK in order to open the window if the stack is only receiving data.
2839 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2840 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2842 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2843 * etharp.c: Make sure the first pbuf queued on an ARP entry
2844 is properly ref counted.
2846 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2847 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2848 warnings about comparison.
2849 * pbuf.c: Stopped compiler complaining of empty if statement
2850 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2851 * tcp.c: Stopped compiler complaining of empty if statement
2852 when LWIP_DEBUGF() empty.
2853 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2854 * inet.c: Added a couple of casts to quiet the compiler.
2855 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2857 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2858 * inet.c: Made data types consistent in inet_ntoa().
2859 Added casts for return values of checksum routines, to pacify compiler.
2860 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2861 Small corrections to some debugging statements, to pacify compiler.
2863 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2864 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2865 * ethernetif.c Updated low_level_output() to match prototype for
2866 netif->linkoutput and changed low_level_input() similarly for consistency.
2867 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2868 of raw_recv() in raw.h and so avoid compiler error.
2869 * sockets.c: Added trivial (int) cast to keep compiler happier.
2870 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2876 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2877 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2878 your cc.h file defines this either 1 or 0. If non-defined,
2880 * .c: Added <string.h> and <errno.h> includes where used.
2881 * etharp.c: Made some array indices unsigned.
2883 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2884 * netif.*: Added netif_set_up()/down().
2885 * dhcp.c: Changes to restart program flow.
2887 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2888 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2889 single-pass lookup for different candidates. Should exploit locality.
2891 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2892 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2893 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2894 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2895 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2899 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2900 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2901 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2902 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2903 is to prefix the 14-bit Ethernet headers with two padding bytes.
2905 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2906 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2907 * etharp.c: Fixed the case where the packet that initiates the ARP request
2908 is not queued, and gets lost. Fixed the case where the packets destination
2909 address is already known; we now always queue the packet and perform an ARP
2916 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2917 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2918 * Fixed two possible NULL references in rare cases.
2924 * Fixed DHCP which did not include the IP address in DECLINE messages.
2928 * etharp.c has been hauled over a bit.
2934 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2935 * Packets sent from ARP queue had invalid source hardware address.
2939 * Pass-by ARP requests do now update the cache.
2943 * No longer dependent on ctype.h.
2944 * New socket options.
2945 * Raw IP pcb support.
2951 * Some debug formatters and casts fixed.
2952 * Numereous fixes in PPP.
2956 * DEBUGF now is LWIP_DEBUGF
2957 * pbuf_dechain() has been re-enabled.
2958 * Mentioned the changed use of CVS branches in README.
2964 * Fixed pool pbuf memory leak in pbuf_alloc().
2965 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2966 Reported by Savin Zlobec.
2968 * PBUF_POOL chains had their tot_len field not set for non-first
2969 pbufs. Fixed in pbuf_alloc().
2973 * Added PPP stack contributed by Marc Boucher
2977 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2979 * ARP queueuing now queues the latest packet instead of the first.
2980 This is the RFC recommended behaviour, but can be overridden in
2987 * TCP has been fixed to deal with the new use of the pbuf->ref
2990 * DHCP dhcp_inform() crash bug fixed.
2994 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2995 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2996 Implemented by David Haas.
3002 * The packet buffer implementation has been enhanced to support
3003 zero-copy and copy-on-demand for packet buffers which have their
3004 payloads in application-managed memory.
3005 Implemented by David Haas.
3007 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3008 if an outgoing packet can be directly sent on the link, or perform
3009 a copy-on-demand when necessary.
3011 The application can safely assume the packet is sent, and the RAM
3012 is available to the application directly after calling udp_send()
3013 or similar function.
3017 * ARP_QUEUEING should now correctly work for all cases, including
3019 Implemented by Leon Woestenberg.
3023 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3024 to a '0.0.0.0' IP address.
3026 * The packet buffer implementation is changed. The pbuf->ref counter
3027 meaning has changed, and several pbuf functions have been
3028 adapted accordingly.
3030 * netif drivers have to be changed to set the hardware address length field
3031 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3032 See the contrib/ports/c16x cs8900 driver as a driver example.
3034 * netif's have a dhcp field that must be initialized to NULL by the driver.
3035 See the contrib/ports/c16x cs8900 driver as a driver example.
3037 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3038 logged in CVS but have not been explained here.
3040 (0.5.3) Changes since version 0.5.2
3044 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3045 threads because it wasn't protected by semaphores.
3049 * struct ip_addr now packed.
3051 * The name of the time variable in arp.c has been changed to ctime
3052 to avoid conflicts with the time() function.
3054 (0.5.2) Changes since version 0.5.1
3058 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3062 * A bug in tcp_parseopt() could cause the stack to hang because of a
3063 malformed TCP option.
3065 * The address of new connections in the accept() function in the BSD
3066 socket library was not handled correctly.
3068 * pbuf_dechain() did not update the ->tot_len field of the tail.
3070 * Aborted TCP connections were not handled correctly in all
3075 * All protocol header structs are now packed.
3077 * The ->len field in the tcp_seg structure now counts the actual
3078 amount of data, and does not add one for SYN and FIN segments.
3080 (0.5.1) Changes since version 0.5.0
3084 * Possible to run as a user process under Linux.
3086 * Preliminary support for cross platform packed structs.
3088 * ARP timer now implemented.
3092 * TCP output queue length was badly initialized when opening
3095 * TCP delayed ACKs were not sent correctly.
3097 * Explicit initialization of BSS segment variables.
3099 * read() in BSD socket library could drop data.
3101 * Problems with memory alignment.
3103 * Situations when all TCP buffers were used could lead to
3106 * TCP MSS option wasn't parsed correctly.
3108 * Problems with UDP checksum calculation.
3110 * IP multicast address tests had endianess problems.
3112 * ARP requests had wrong destination hardware address.
3116 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3118 * A ->linkoutput() member was added to struct netif.
3120 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3122 * ntoh* macros are now null definitions for big endian CPUs.
3124 (0.5.0) Changes since version 0.4.2
3128 * Redesigned operating system emulation layer to make porting easier.
3130 * Better control over TCP output buffers.
3132 * Documenation added.
3136 * Locking issues in buffer management.
3138 * Bugfixes in the sequential API.
3140 * IP forwarding could cause memory leakage. This has been fixed.
3144 * Directory structure somewhat changed; the core/ tree has been
3147 (0.4.2) Changes since version 0.4.1
3151 * Experimental ARP implementation added.
3153 * Skeleton Ethernet driver added.
3155 * Experimental BSD socket API library added.
3159 * In very intense situations, memory leakage could occur. This has
3164 * Variables named "data" and "code" have been renamed in order to
3165 avoid name conflicts in certain compilers.
3167 * Variable++ have in appliciable cases been translated to ++variable
3168 since some compilers generate better code in the latter case.
3170 (0.4.1) Changes since version 0.4
3174 * TCP: Connection attempts time out earlier than data
3175 transmissions. Nagle algorithm implemented. Push flag set on the
3176 last segment in a burst.
3178 * UDP: experimental support for UDP-Lite extensions.
3182 * TCP: out of order segments were in some cases handled incorrectly,
3183 and this has now been fixed. Delayed acknowledgements was broken
3184 in 0.4, has now been fixed. Binding to an address that is in use
3185 now results in an error. Reset connections sometimes hung an
3186 application; this has been fixed.
3188 * Checksum calculation sometimes failed for chained pbufs with odd
3189 lengths. This has been fixed.
3191 * API: a lot of bug fixes in the API. The UDP API has been improved
3192 and tested. Error reporting and handling has been
3193 improved. Logical flaws and race conditions for incoming TCP
3194 connections has been found and removed.
3196 * Memory manager: alignment issues. Reallocating memory sometimes
3197 failed, this has been fixed.
3199 * Generic library: bcopy was flawed and has been fixed.
3203 * API: all datatypes has been changed from generic ones such as
3204 ints, to specified ones such as u16_t. Functions that return
3205 errors now have the correct type (err_t).
3207 * General: A lot of code cleaned up and debugging code removed. Many
3208 portability issues have been fixed.
3210 * The license was changed; the advertising clause was removed.
3214 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3215 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3218 (0.4) Changes since version 0.3.1
3220 * Memory management has been radically changed; instead of
3221 allocating memory from a shared heap, memory for objects that are
3222 rapidly allocated and deallocated is now kept in pools. Allocation
3223 and deallocation from those memory pools is very fast. The shared
3224 heap is still present but is used less frequently.
3226 * The memory, memory pool, and packet buffer subsystems now support
3227 4-, 2-, or 1-byte alignment.
3229 * "Out of memory" situations are handled in a more robust way.
3231 * Stack usage has been reduced.
3233 * Easier configuration of lwIP parameters such as memory usage,
3234 TTLs, statistics gathering, etc. All configuration parameters are
3235 now kept in a single header file "lwipopts.h".
3237 * The directory structure has been changed slightly so that all
3238 architecture specific files are kept under the src/arch
3241 * Error propagation has been improved, both in the protocol modules
3244 * The code for the RTXC architecture has been implemented, tested
3247 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3248 the Internet checksum modules.
3250 * Bugs related to porting between a 32-bit and a 16-bit architecture
3251 have been found and corrected.
3253 * The license has been changed slightly to conform more with the
3254 original BSD license, including the advertisement clause.
3256 (0.3.1) Changes since version 0.3
3258 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3259 RAM never returned the RAM when the pbuf was deallocated.
3261 * TCP congestion control, window updates and retransmissions did not
3262 work correctly. This has now been fixed.
3264 * Bugfixes in the API.
3266 (0.3) Changes since version 0.2
3268 * New and improved directory structure. All include files are now
3269 kept in a dedicated include/ directory.
3271 * The API now has proper error handling. A new function,
3272 netconn_err(), now returns an error code for the connection in
3275 * Improvements in the memory management subsystem. The system now
3276 keeps a pointer to the lowest free memory block. A new function,
3277 mem_malloc2() tries to allocate memory once, and if it fails tries
3278 to free some memory and retry the allocation.
3280 * Much testing has been done with limited memory
3281 configurations. lwIP now does a better job when overloaded.
3283 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3285 * Many bugfixes in the TCP code:
3287 - Fixed a bug in tcp_close().
3289 - The TCP receive window was incorrectly closed when out of
3290 sequence segments was received. This has been fixed.
3292 - Connections are now timed-out of the FIN-WAIT-2 state.
3294 - The initial congestion window could in some cases be too
3295 large. This has been fixed.
3297 - The retransmission queue could in some cases be screwed up. This
3300 - TCP RST flag now handled correctly.
3302 - Out of sequence data was in some cases never delivered to the
3303 application. This has been fixed.
3305 - Retransmitted segments now contain the correct acknowledgment
3306 number and advertised window.
3308 - TCP retransmission timeout backoffs are not correctly computed
3309 (ala BSD). After a number of retransmissions, TCP now gives up
3312 * TCP connections now are kept on three lists, one for active
3313 connections, one for listening connections, and one for
3314 connections that are in TIME-WAIT. This greatly speeds up the fast
3315 timeout processing for sending delayed ACKs.
3317 * TCP now provides proper feedback to the application when a
3318 connection has been successfully set up.
3320 * More comments have been added to the code. The code has also been
3321 somewhat cleaned up.
3323 (0.2) Initial public release.