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 2012-03-25: Simon Goldschmidt
80 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
81 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
83 2012-03-25: Simon Goldschmidt
84 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
85 pollution in api_msg.c and netifapi.c
87 2012-03-22: Simon Goldschmidt
88 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
90 2012-03-20: Simon Goldschmidt (patch by Mason)
91 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
93 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
94 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
95 possible bug on little endian system
97 2012-02-23: Simon Goldschmidt
98 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
99 (introduced when fixing bug# 33551)
101 2012-02-16: Simon Goldschmidt
102 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
103 (bug #35541: PPP Memory Leak)
105 2012-02-16: Simon Goldschmidt
106 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
107 (introduced when fixing bug# 33551)
109 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
110 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
112 2012-02-15: Simon Goldschmidt
113 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
116 2012-02-12: Simon Goldschmidt
117 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
118 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
120 2012-02-11: Simon Goldschmidt
121 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
124 2012-01-22: Simon Goldschmidt
125 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
127 2012-01-21: Simon Goldschmidt
128 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
130 2012-01-20: Simon Goldschmidt
131 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
133 2012-01-20: Simon Goldschmidt
134 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
136 2011-11-25: Simon Goldschmidt
137 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
138 tcp_active_pcbs in some cases
140 2011-11-23: Simon Goldschmidt
141 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
144 2011-11-22: Simon Goldschmidt
145 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
146 netif is brought down
148 2011-10-28: Simon Goldschmidt
149 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
151 2011-10-23: Simon Goldschmidt
152 * mem.c: fixed bug #34429: possible memory corruption with
153 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
155 2011-10-18: Simon Goldschmidt
156 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
159 2011-10-18: Simon Goldschmidt
160 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
161 windows (bug #34176 select after non-blocking send times out)
163 2011-10-18: Simon Goldschmidt
164 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
165 consider netif->mtu, causes slow network
167 2011-10-18: Simon Goldschmidt
168 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
170 2011-10-18: Simon Goldschmidt
171 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
173 2011-10-17: Simon Goldschmidt
174 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
176 2011-10-13: Simon Goldschmidt
177 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
178 zero window is received) by starting the persist timer when a zero window is
179 received, not when we have more data queued for sending than fits into the
182 2011-10-13: Simon Goldschmidt
183 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
185 2011-10-13: Simon Goldschmidt
186 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
187 used and not all protocols are enabled
189 2011-10-12: Simon Goldschmidt
190 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
192 2011-10-09: Simon Goldschmidt
193 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
194 byte value when pcb->unacked != NULL
196 2011-10-09: Simon Goldschmidt
197 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
199 2011-09-27: Simon Goldschmidt
200 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
202 2011-09-27: Simon Goldschmidt
203 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
205 2011-09-27: Simon Goldschmidt
206 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
208 2011-09-24: Simon Goldschmidt
209 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
211 2011-09-23: Simon Goldschmidt
212 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
213 the last packet including FIN can lose data
215 2011-09-22: Simon Goldschmidt
216 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
219 2011-09-21: Simon Goldschmidt
220 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
223 2011-09-20: Simon Goldschmidt
224 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
226 2011-09-11: Simon Goldschmidt
227 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
230 2011-09-09: Simon Goldschmidt
231 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
234 2011-09-03: Simon Goldschmidt
235 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
236 is aggregated and sent to application
238 2011-09-01: Simon Goldschmidt
239 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
242 2011-09-01: Simon Goldschmidt
243 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
245 2011-08-24: Simon Goldschmidt
246 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
248 2011-08-24: Simon Goldschmidt
249 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
250 accept() on UDP connections
252 2011-08-24: Simon Goldschmidt
253 * sockets.h: fixed bug #34057 socklen_t should be a typedef
255 2011-08-24: Simon Goldschmidt
256 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
258 2011-08-24: Simon Goldschmidt
259 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
261 2011-08-24: Simon Goldschmidt
262 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
264 2011-08-22: Simon Goldschmidt
265 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
266 merely prevents nagle from not transmitting fast after closing.)
268 2011-07-22: Simon Goldschmidt
269 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
270 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
271 lwip_send() sends as much as possible for non-blocking sockets
273 2011-07-22: Simon Goldschmidt
274 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
275 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
276 at regular intervals from main level.
278 2011-07-21: Simon Goldschmidt
279 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
280 sending an ARP request when an ARP entry is used in the last minute before
283 2011-07-04: Simon Goldschmidt
284 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
286 2011-06-26: Simon Goldschmidt
287 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
288 updating its documentation only.
290 2011-06-26: Simon Goldschmidt
291 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
294 2011-06-26: Simon Goldschmidt
295 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
303 2011-03-27: Simon Goldschmidt
304 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
305 calculate it in tcp_zero_window_probe (the only place where it was used).
307 2010-11-21: Simon Goldschmidt
308 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
311 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
312 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
313 IP_MULTICAST_LOOP at socket- and raw-API level.
315 2010-06-16: Simon Goldschmidt
316 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
317 link-layer-addressed UDP traffic to be received while a netif is down (just
318 like DHCP during configuration)
320 2010-05-22: Simon Goldschmidt
321 * many many files: bug #27352: removed packing from ip_addr_t, the packed
322 version is now only used in protocol headers. Added global storage for
323 current src/dest IP address while in input functions.
325 2010-05-16: Simon Goldschmidt
326 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
327 calculation (and use them throughout the stack where applicable)
329 2010-05-16: Simon Goldschmidt
330 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
331 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
333 2010-05-16: Simon Goldschmidt
334 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
335 MEMP pool instead of the heap
337 2010-05-13: Simon Goldschmidt
338 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
339 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
340 packets to more than one pcb.
342 2010-05-02: Simon Goldschmidt
343 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
344 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
346 2010-04-30: Simon Goldschmidt
347 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
348 take a precalculated checksum, added pbuf_fill_chksum() to copy data
349 into a pbuf and at the same time calculating the checksum for that data
351 2010-04-29: Simon Goldschmidt
352 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
353 2-byte-aligned IP addresses and MAC addresses
355 2010-04-28: Patch by Bill Auerbach
356 * ip.c: Inline generating IP checksum to save a function call
358 2010-04-14: Simon Goldschmidt
359 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
360 tcpip_thread processes messages or timeouts to implement a watchdog.
362 2010-03-28: Simon Goldschmidt
363 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
364 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
366 2010-03-27: Simon Goldschmidt
367 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
368 etharp_query to prevent unnecessary function calls (inspired by
371 2010-03-20: Simon Goldschmidt
372 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
373 since the linker cannot do this automatically to save space.
375 2010-03-20: Simon Goldschmidt
376 * opt.h, etharp.c/.h: Added support for static ARP table entries
378 2010-03-14: Simon Goldschmidt
379 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
380 when creating TCP segments, not when (re-)transmitting them.
382 2010-03-07: Simon Goldschmidt
383 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
384 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
385 This should speed up receiving data on sockets as the select code in
386 event_callback is only executed when select is waiting.
388 2010-03-06: Simon Goldschmidt
389 * tcp_out.c: task #7013 (Create option to have all packets delivered to
390 netif->output in one piece): Always copy to try to create single pbufs
393 2010-03-06: Simon Goldschmidt
394 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
395 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
396 for tcp netconns to receive pbufs, not netbufs; use that function
399 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
400 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
401 Work on tcp_enqueue: Don't waste memory when chaining segments,
402 added option TCP_OVERSIZE to prevent creating many small pbufs when
403 calling tcp_write with many small blocks of data. Instead, pbufs are
404 allocated larger than needed and the space is used for later calls to
407 2010-02-21: Simon Goldschmidt
408 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
411 2010-02-21: Simon Goldschmidt
412 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
413 implementation of tcp to make API usage cleare to application programmers
415 2010-02-14: Simon Goldschmidt/Stephane Lesage
416 * ip_addr.h: Improved some defines working on ip addresses, added faster
417 macro to copy addresses that cannot be NULL
419 2010-02-13: Simon Goldschmidt
420 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
421 blocking send operation)
423 2010-02-12: Simon Goldschmidt
424 * sockets.c/.h: Added a minimal version of posix fctl() to have a
425 standardised way to set O_NONBLOCK for nonblocking sockets.
427 2010-02-12: Simon Goldschmidt
428 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
429 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
430 and dhcp work with user-allocated structs instead of callin mem_malloc
432 2010-02-12: Simon Goldschmidt/Jeff Barber
433 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
434 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
436 2010-02-12: Simon Goldschmidt
437 * sys layer: task #10139 (Prefer statically allocated memory): converted
438 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
439 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
440 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
441 to let sys.h use binary semaphores instead of mutexes - as before)
443 2010-02-09: Simon Goldschmidt (Simon Kallweit)
444 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
445 (Restart system timeout handling)
447 2010-02-09: Simon Goldschmidt
448 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
449 netif.c) - loopif does not have to be created by the port any more,
450 just define LWIP_HAVE_LOOPIF to 1.
452 2010-02-08: Simon Goldschmidt
453 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
454 inet_ntoa_r/ipaddr_ntoa_r
456 2010-02-08: Simon Goldschmidt
457 * netif.h: Added netif_s/get_igmp_mac_filter() macros
459 2010-02-05: Simon Goldschmidt
460 * netif.h: Added function-like macros to get/set the hostname on a netif
462 2010-02-04: Simon Goldschmidt
463 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
464 make changing the actual implementation behind the typedef easier.
466 2010-02-01: Simon Goldschmidt
467 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
468 for allocating memory when getaddrinfo() is called.
470 2010-01-31: Simon Goldschmidt
471 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
472 them once instead of parsing for every option. This also removes
473 the need for mem_malloc from dhcp_recv and makes it possible to
474 correctly retrieve the BOOTP file.
476 2010-01-30: simon Goldschmidt
477 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
480 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
481 * api.h, api_msg.c, sockets.c: Added except set support in select
484 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
485 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
486 Add non-blocking support for connect (partly from patch #6860),
487 plus many cleanups in socket & netconn API.
489 2010-01-27: Simon Goldschmidt
490 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
491 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
493 2010-01-26: Simon Goldschmidt
494 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
496 2010-01-14: Simon Goldschmidt
497 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
498 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
500 2010-01-13: Simon Goldschmidt
501 * mem.c: The heap now may be moved to user-defined memory by defining
502 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
503 (patch #6966 and bug #26133)
505 2010-01-10: Simon Goldschmidt (Bill Auerbach)
506 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
509 2010-01-10: Simon Goldschmidt
510 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
511 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
513 2009-12-31: Simon Goldschmidt
514 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
515 added timers.c/.h: Separated timer implementation from semaphore/mbox
516 implementation, moved timer implementation to timers.c/.h, timers are
517 now only called from tcpip_thread or by explicitly checking them.
520 2009-12-27: Simon Goldschmidt
521 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
522 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
527 2011-04-20: Simon Goldschmidt
528 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
530 2011-04-13: Simon Goldschmidt
531 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
532 using ports in the IANA private/dynamic range (49152 through 65535).
534 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
535 * etharp.h/.c: Fixed broken VLAN support.
537 2011-03-27: Simon Goldschmidt
538 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
539 pcbs) by checking if the pcb was bound (local_port != 0).
541 2011-03-27: Simon Goldschmidt
542 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
544 2011-03-27: Simon Goldschmidt
545 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
546 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
548 2011-03-27: Simon Goldschmidt
549 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
550 is present never times out) by starting retransmission timer before checking
553 2011-03-22: Simon Goldschmidt
554 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
555 calling sio_read_abort() if the file descriptor is valid.
557 2011-03-14: Simon Goldschmidt
558 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
559 more than once can render a socket useless) since it mainly involves changing
560 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
562 2011-03-13: Simon Goldschmidt
563 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
564 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
565 use EALRADY instead of -1
567 2011-03-13: Simon Goldschmidt
568 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
569 connection has been aborted by err_tcp (since this is not a normal closing
572 2011-03-13: Simon Goldschmidt
573 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
574 with pcb->state != CLOSED
576 2011-02-17: Simon Goldschmidt
577 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
580 2011-02-17: Simon Goldschmidt
581 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
583 2011-01-24: Simon Goldschmidt
584 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
586 2010-12-02: Simon Goldschmidt
587 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
589 2010-11-23: Simon Goldschmidt
590 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
591 LWIP_SO_RCVBUF and ioctl/FIONREAD.
593 2010-11-23: Simon Goldschmidt
594 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
595 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
597 2010-11-23: Simon Goldschmidt
598 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
599 refusing 'refused_data' again.
601 2010-11-22: Simon Goldschmidt
602 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
603 after a successful nonblocking connection.
605 2010-11-22: Simon Goldschmidt
606 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
607 must be sent link-local
609 2010-11-22: Simon Goldschmidt
610 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
613 2010-11-20: Simon Goldschmidt
614 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
616 2010-11-20: Simon Goldschmidt
617 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
618 resemble other stacks.
620 2010-11-20: Simon Goldschmidt
621 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
622 no-copy TCP writes will never succeed.
624 2010-11-20: Simon Goldschmidt
625 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
626 not match documentation: return ERR_ARG instead of ERR_VAL if not
627 initialized or wrong argument.
629 2010-10-20: Simon Goldschmidt
630 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
632 2010-10-05: Simon Goldschmidt
633 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
634 replugging the network cable after an AutoIP address was assigned.
636 2010-08-10: Simon Goldschmidt
637 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
639 2010-08-03: Simon Goldschmidt
640 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
642 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
643 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
644 endian architectures)
646 2010-07-28: Simon Goldschmidt
647 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
650 2010-07-27: Simon Goldschmidt
651 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
652 harm but never did anything
654 2010-07-21: Simon Goldschmidt
655 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
658 2010-07-16: Kieran Mansley
659 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
661 2010-07-10: Simon Goldschmidt
662 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
664 2010-06-30: Simon Goldschmidt
665 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
668 2010-06-28: Kieran Mansley
669 * timers.c remove unportable printing of C function pointers
671 2010-06-24: Simon Goldschmidt
672 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
673 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
675 2010-06-24: Simon Goldschmidt
676 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
677 implemented shutdown at socket level.
679 2010-06-21: Simon Goldschmidt
680 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
681 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
682 custom pbufs that reference other (original) pbufs. Additionally set
683 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
685 2010-06-15: Simon Goldschmidt
686 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
688 2010-06-14: Simon Goldschmidt
689 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
691 2010-06-12: Simon Goldschmidt
692 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
695 2010-05-17: Simon Goldschmidt
696 * netdb.c: Correctly NULL-terminate h_addr_list
698 2010-05-16: Simon Goldschmidt
699 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
700 "symbol already defined" i.e. when linking to winsock
702 2010-05-05: Simon Goldschmidt
703 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
706 2010-04-21: Simon Goldschmidt
707 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
710 2010-03-28: Luca Ceresoli
711 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
713 2010-03-27: Luca Ceresoli
714 * mib2.c: patch #7130: remove meaningless const qualifiers
716 2010-03-26: Simon Goldschmidt
717 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
719 2010-03-26: Simon Goldschmidt
720 * various files: Fixed compiling with different options disabled (TCP/UDP),
721 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
723 2010-03-25: Simon Goldschmidt
724 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
726 2010-03-25: Simon Goldschmidt
727 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
728 overrunning our rcv_wnd in ooseq case.
730 2010-03-22: Simon Goldschmidt
731 * tcp.c: tcp_listen() did not copy the pcb's prio.
733 2010-03-19: Simon Goldschmidt
734 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
736 2010-03-14: Simon Goldschmidt
737 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
738 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
739 and basing PBUF_LINK_HLEN on it.
741 2010-03-08: Simon Goldschmidt
742 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
743 when assiging routable address): when checking incoming packets and
744 aborting existing connection on address change, filter out link-local
747 2010-03-06: Simon Goldschmidt
748 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
750 2010-03-06: Simon Goldschmidt
751 * ipv4/ip.c: Don't try to forward link-local addresses
753 2010-03-06: Simon Goldschmidt
754 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
757 2010-03-05: Simon Goldschmidt
758 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
761 2010-03-05: Simon Goldschmidt
762 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
763 into multiple calls to tcp_write.
765 2010-02-21: Simon Goldschmidt
766 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
767 the implementation of DNS_USES_STATIC_BUF==1)
769 2010-02-20: Simon Goldschmidt
770 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
771 close() vs. shutdown(). Now the application does not get any more
772 recv callbacks after calling tcp_close(). Added tcp_shutdown().
774 2010-02-19: Simon Goldschmidt
775 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
776 confusion with realloc()
778 2010-02-15: Simon Goldschmidt/Stephane Lesage
779 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
782 2010-02-14: Simon Goldschmidt
783 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
784 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
785 admin-status of a netif are up
787 2010-02-14: Simon Goldschmidt
788 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
789 reception and is not really necessary
791 2010-02-14: Simon Goldschmidt
792 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
793 request was directed as us (RFC 826, Packet Reception), otherwise
794 only update existing entries; internalized some functions
796 2010-02-14: Simon Goldschmidt
797 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
798 disabled on netif used for PPPoE) by adding a new netif flag
799 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
800 device but prevents usage of ARP (so that ethernet_input can be used
803 2010-02-12: Simon Goldschmidt
804 * netif.c: netif_set_link_up/down: only do something if the link state
807 2010-02-12: Simon Goldschmidt/Stephane Lesage
808 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
811 2010-02-12: Simon Goldschmidt
812 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
814 2010-02-09: Simon Goldschmidt
815 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
816 (recv() makes receive window update for data that wasn't received by
819 2010-02-09: Simon Goldschmidt/Stephane Lesage
820 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
821 or any netconn_recv() error)
823 2010-02-09: Simon Goldschmidt
824 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
826 2010-02-09: Simon Goldschmidt
827 * netif.c: For loopback packets, adjust the stats- and snmp-counters
828 for the loopback netif.
830 2010-02-08: Simon Goldschmidt
831 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
832 since they are not used anywhere else.
834 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
835 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
836 (patch from bug #28798)
838 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
839 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
840 another bug when LWIP_RAND() returns zero.
842 2010-02-04: Simon Goldschmidt
843 * nearly every file: Use macros defined in ip_addr.h (some of them new)
844 to work with IP addresses (preparation for bug #27352 - Change ip_addr
845 from struct to typedef (u32_t) - and better code).
847 2010-01-31: Simon Goldschmidt
848 * netif.c: Don't call the link-callback from netif_set_up/down() since
849 this invalidly retriggers DHCP.
851 2010-01-29: Simon Goldschmidt
852 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
853 portability file inet.h and its contents from the stack: moved htonX-
854 functions to def.h (and the new def.c - they are not ipv4 dependent),
855 let inet.h depend on ip_addr.h and not the other way round.
856 This fixes bug #28732.
858 2010-01-28: Kieran Mansley
859 * tcp.c: Ensure ssthresh >= 2*MSS
861 2010-01-27: Simon Goldschmidt
862 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
863 callback can lead to accessing unallocated memory. As a consequence,
864 ERR_ABRT means the application has called tcp_abort()!
866 2010-01-25: Simon Goldschmidt
867 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
868 not implemented in SNMP): write-only or not-accessible are still
869 returned by getnext (though not by get)
871 2010-01-24: Simon Goldschmidt
872 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
873 not use reserved C/C++ keywords
875 2010-01-23: Simon Goldschmidt
876 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
879 2010-01-21: Simon Goldschmidt
880 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
881 if tcp_enqueue fails) both in raw- and netconn-API
883 2010-01-19: Simon Goldschmidt
884 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
886 2010-01-18: Iordan Neshev/Simon Goldschmidt
887 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
888 bugfix backports from 2.4.x.
890 2010-01-18: Simon Goldschmidt
891 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
893 2010-01-17: Simon Goldschmidt
894 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
895 task #10102: "netconn: clean up conn->err threading issues" by adding
896 error return value to struct api_msg_msg
898 2010-01-17: Simon Goldschmidt
899 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
900 to return err_t (bugs #27709 and #28087)
902 2010-01-14: Simon Goldschmidt
903 * ...: Use typedef for function prototypes throughout the stack.
905 2010-01-13: Simon Goldschmidt
906 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
907 window = 0) by correctly draining recvmbox/acceptmbox
909 2010-01-11: Simon Goldschmidt
910 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
911 erroneous callbacks) by copying the code from recent pppd
913 2010-01-10: Simon Goldschmidt
914 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
916 2010-01-10: Simon Goldschmidt
917 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
919 2010-01-08: Simon Goldschmidt
920 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
922 2010-01-08: Simon Goldschmidt
923 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
924 passed to dns_local_addhost() might be volatile
926 2010-01-07: Simon Goldschmidt
927 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
929 2010-01-06: Simon Goldschmidt
930 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
932 2009-12-31: Simon Goldschmidt
933 * many ppp files: Reorganised PPP source code from ucip structure to pppd
934 structure to easily compare our code against the pppd code (around v2.3.1)
936 2009-12-27: Simon Goldschmidt
937 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
945 2009-10-27 Simon Goldschmidt/Stephan Lesage
946 * netifapi.c/.h: Added netifapi_netif_set_addr()
948 2009-10-07 Simon Goldschmidt/Fabian Koch
949 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
950 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
952 2009-08-26 Simon Goldschmidt/Simon Kallweit
953 * slipif.c/.h: bug #26397: SLIP polling support
955 2009-08-25 Simon Goldschmidt
956 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
957 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
959 2009-08-25 Simon Goldschmidt
960 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
962 2009-08-24 Jakob Stoklund Olesen
963 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
964 to netif_set_link_up().
966 2009-08-23 Simon Goldschmidt
967 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
968 to a human-readable string.
972 2009-12-24: Kieran Mansley
973 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
976 2009-12-06: Simon Goldschmidt
977 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
978 be statically allocated (like in ucip)
980 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
981 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
983 2009-12-03: Simon Goldschmidt
984 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
985 could have non-zero length
987 2009-12-02: Simon Goldschmidt
988 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
989 tcp_input_pcb until after calling the pcb's callbacks
991 2009-11-29: Simon Goldschmidt
992 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
993 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
995 2009-11-29: Simon Goldschmidt
996 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
997 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
999 2009-11-26: Simon Goldschmidt
1000 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1003 2009-11-26: Simon Goldschmidt
1004 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1005 algorithm at PCB level
1007 2009-11-22: Simon Goldschmidt
1008 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1010 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1011 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1012 reusing time-wait pcb
1014 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1015 * sockets.c: Fixed bug #28062: Data received directly after accepting
1016 does not wake up select
1018 2009-11-11: Simon Goldschmidt
1019 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1021 2009-10-30: Simon Goldschmidt
1022 * opt.h: Increased default value for TCP_MSS to 536, updated default
1023 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1025 2009-10-28: Kieran Mansley
1026 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1027 to follow algorithm from TCP/IP Illustrated
1029 2009-10-27: Kieran Mansley
1030 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1032 2009-10-25: Simon Goldschmidt
1033 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1034 pcb->recv is NULL to keep rcv_wnd correct)
1036 2009-10-25: Simon Goldschmidt
1037 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1039 2009-10-23: Simon Goldschmidt (David Empson)
1040 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1042 2009-10-21: Simon Goldschmidt
1043 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1044 trailing 1 byte len (SYN/FIN)
1046 2009-10-21: Simon Goldschmidt
1047 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1049 2009-10-19: Simon Goldschmidt
1050 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1051 conditional code to assert where applicable), check pbuf length before
1052 testing for valid reply
1054 2009-10-19: Simon Goldschmidt
1055 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1056 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1058 2009-10-16: Simon Goldschmidt
1059 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1060 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1063 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1064 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1066 2009-10-15: Simon Goldschmidt
1067 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1070 2009-10-15: Simon Goldschmidt
1071 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1072 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1073 of network byte order
1075 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1076 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1077 which are not consecutive when retransmitting unacked segments
1079 2009-10-09 Simon Goldschmidt
1080 * opt.h: Fixed default values of some stats to only be enabled if used
1081 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1083 2009-08-30 Simon Goldschmidt
1084 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1085 function" by checking for loopback before calling ip_frag
1087 2009-08-25 Simon Goldschmidt
1088 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1090 2009-08-23 Simon Goldschmidt
1091 * ppp.c: bug #27078: Possible memory leak in pppInit()
1093 2009-08-23 Simon Goldschmidt
1094 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1097 2009-08-23 Simon Goldschmidt
1098 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1099 Fixed wrong parenthesis, added check in init.c
1101 2009-08-23 Simon Goldschmidt
1102 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1104 2009-08-23 Simon Goldschmidt
1105 * many ppp files: bug #27267: Added include to string.h where needed
1107 2009-08-23 Simon Goldschmidt
1108 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1115 2009-05-10 Simon Goldschmidt
1116 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1117 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1118 one pbuf to help MACs that don't support scatter-gather DMA.
1120 2009-05-09 Simon Goldschmidt
1121 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1122 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1124 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1125 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1126 extended info about the currently received packet.
1128 2009-04-27 Simon Goldschmidt
1129 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1131 2009-04-25 Simon Goldschmidt
1132 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1133 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1135 2009-04-21 Simon Goldschmidt
1136 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1137 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1138 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1139 as an external function for lookup.
1141 2009-04-15 Simon Goldschmidt
1142 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1144 2009-03-31 Kieran Mansley
1145 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1146 TCP timestamp options, off by default. Rework tcp_enqueue() to
1147 take option flags rather than specified option data
1149 2009-02-18 Simon Goldschmidt
1150 * cc.h: Added printf formatter for size_t: SZT_F
1152 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1153 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1156 2009-02-12 Simon Goldschmidt
1157 * init.h: Added LWIP_VERSION to get the current version of the stack
1159 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1160 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1161 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1164 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1165 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1166 is only used by UDPLITE at present, so conditionalise it.
1168 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1169 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1170 "seed" address. This should reduce AUTOIP conflicts if
1171 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1173 2008-10-02 Jonathan Larmour and Rishi Khan
1174 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1177 2008-06-30 Simon Goldschmidt
1178 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1179 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1180 mem_free to run between mem_malloc iterations. Added illegal counter for
1183 2008-06-27 Simon Goldschmidt
1184 * stats.h/.c, some other files: patch #6483: stats module improvement:
1185 Added defines to display each module's statistic individually, added stats
1186 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1188 2008-06-17 Simon Goldschmidt
1189 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1190 (define LWIP_ERR_T in cc.h)
1192 2008-06-17 Simon Goldschmidt
1193 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1196 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1197 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1198 modified version of patch # 6370: Moved loopif code to netif.c so that
1199 loopback traffic is supported on all netifs (all local IPs).
1200 Added option to limit loopback packets for each netifs.
1204 2009-08-12 Kieran Mansley
1205 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1206 out of window or out of order properly
1208 2009-08-12 Kieran Mansley
1209 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1211 2009-07-28 Simon Goldschmidt
1212 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1214 2009-07-27 Kieran Mansley
1215 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1217 2009-07-09 Kieran Mansley
1218 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1219 recv_avail and don't increment counters until message successfully
1222 2009-06-25 Kieran Mansley
1223 * api_msg.c api.h: BUG26722: initialise netconn write variables
1226 2009-06-25 Kieran Mansley
1227 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1229 2009-06-25 Kieran Mansley
1230 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1231 simultaneous close behaviour, and make snd_nxt have the same meaning
1234 2009-05-12 Simon Goldschmidt
1235 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1236 arp_table / uses etharp_query" by adding etharp_gratuitous()
1238 2009-05-12 Simon Goldschmidt
1239 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1240 to the IP header (used by igmp_ip_output_if)
1242 2009-05-06 Simon Goldschmidt
1243 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1244 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1246 2009-05-05 Simon Goldschmidt
1247 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1250 2009-05-04 Simon Goldschmidt
1251 * init.c: snmp was not initialized in lwip_init()
1253 2009-05-04 Frédéric Bernon
1254 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1256 2009-05-03 Simon Goldschmidt
1257 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1258 (and unsent->next == NULL)
1260 2009-05-02 Simon Goldschmidt
1261 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1262 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1264 2009-05-02 Simon Goldschmidt
1265 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1267 2009-05-01 Simon Goldschmidt
1268 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1270 2009-05-01 Simon Goldschmidt
1271 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1273 2009-04-29 Frédéric Bernon
1274 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1275 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1276 of broadcast packets even when this option wasn't set. Port maintainers
1277 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1278 If you want this option also filter broadcast on recv operations, you also
1279 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1281 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1282 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1283 DHCP/AUTOIP cooperation
1285 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1286 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1287 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1288 right place in tcp_output and tcp_rexmit).
1290 2009-04-25 Simon Goldschmidt
1291 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1292 when debugging": memp_sizes contained the wrong sizes (including sanity
1293 regions); memp pools for MEM_USE_POOLS were too small
1295 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1296 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1297 behavior, with with ip address string not ended by a '\0', a space or a
1300 2009-04-19 Simon Goldschmidt
1301 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1302 pcb->err is called, not pcb->connected (with an error code).
1304 2009-04-19 Simon Goldschmidt
1305 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1306 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1308 2009-04-19 Simon Goldschmidt
1309 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1310 in the header pbuf, not the data pbuf)
1312 2009-04-18 Simon Goldschmidt
1313 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1315 2009-04-15 Simon Goldschmidt
1316 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1318 2009-04-15 Simon Goldschmidt
1319 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1321 2009-04-15 Simon Goldschmidt
1322 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1323 ip_hinted_output() (for smaller code mainly)
1325 2009-04-15 Simon Goldschmidt
1326 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1328 2009-04-15 Simon Goldschmidt
1329 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1330 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1331 is big enough in dhcp_start
1333 2009-04-15 Simon Goldschmidt
1334 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1336 2009-04-15 Simon Goldschmidt
1337 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1339 2009-04-15 Simon Goldschmidt
1340 * sockets.c: bug #26121: set_errno can be overridden
1342 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1343 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1346 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1347 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1350 2009-03-31 Kieran Mansley
1351 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1352 updates are calculated and sent (BUG20515)
1354 * tcp_in.c: cope with SYN packets received during established states,
1355 and retransmission of initial SYN.
1357 * tcp_out.c: set push bit correctly when tcp segments are merged
1359 2009-03-27 Kieran Mansley
1360 * tcp_out.c set window correctly on probes (correcting change made
1363 2009-03-26 Kieran Mansley
1364 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1365 connections where no reset required (bug #25622)
1367 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1370 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1371 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1372 too small depending on MEM_ALIGNMENT
1374 2009-02-16 Simon Goldschmidt
1375 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1376 converted size argument of netconn_write to 'size_t'
1378 2009-02-16 Simon Goldschmidt
1379 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1380 by moving accept callback function pointer to TCP_PCB_COMMON
1382 2009-02-12 Simon Goldschmidt
1383 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1386 2009-02-11 Simon Goldschmidt
1387 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1389 2009-02-11 Simon Goldschmidt
1390 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1391 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1393 2009-02-10 Simon Goldschmidt
1394 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1395 Accepts_pending is decrease on a corresponding listen pcb when a connection
1396 in state SYN_RCVD is close.
1398 2009-01-28 Jonathan Larmour
1399 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1402 2008-12-19 Simon Goldschmidt
1403 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1405 2008-12-10 Tamas Somogyi, Frédéric Bernon
1406 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1407 port uses deleted netbuf.
1409 2008-10-18 Simon Goldschmidt
1410 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1413 2008-10-15 Simon Goldschmidt
1414 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1415 by packing the struct ip_reass_helper.
1417 2008-10-03 David Woodhouse, Jonathan Larmour
1418 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1420 2008-10-02 Jonathan Larmour
1421 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1422 padding is included.
1424 2008-09-30 Jonathan Larmour
1425 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1426 assertion check that addrlen isn't NULL.
1428 2008-09-30 Jonathan Larmour
1429 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1431 2008-08-26 Simon Goldschmidt
1432 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1433 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1435 2008-08-14 Simon Goldschmidt
1436 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1437 tcp_close returns != ERR_OK)
1439 2008-07-08 Frédéric Bernon
1440 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1441 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1443 2008-06-24 Jonathan Larmour
1444 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1445 if tcp_seg_copy fails.
1447 2008-06-17 Simon Goldschmidt
1448 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1449 and created defines for swapping bytes and folding u32 to u16.
1451 2008-05-30 Kieran Mansley
1452 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1453 rather than rcv_ann_wnd when deciding if packets are in-window.
1454 Contributed by <arasmussen@consultant.datasys.swri.edu>
1456 2008-05-30 Kieran Mansley
1457 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1458 passing as function pointers when MEM_LIBC_MALLOC is defined.
1460 2008-05-09 Jonathan Larmour
1461 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1462 stop it being treated as a fatal error.
1464 2008-04-15 Simon Goldschmidt
1465 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1468 2008-03-27 Simon Goldschmidt
1469 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1470 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1471 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1472 or heap memory from interrupt context
1474 2008-03-26 Simon Goldschmidt
1475 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1476 host sent a zero mss as TCP option.
1483 2008-03-10 Jonathan Larmour
1484 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1485 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1487 2008-01-22 Frédéric Bernon
1488 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1489 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1491 2008-01-14 Frédéric Bernon
1492 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1493 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1494 tcp_recv callback (see rawapi.txt).
1496 2008-01-14 Frédéric Bernon, Marc Chaland
1497 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1499 2008-01-12 Frédéric Bernon
1500 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1501 netconn::sem per netconn::op_completed like suggested for the task #7490
1502 "Add return value to sys_mbox_post".
1504 2008-01-12 Frédéric Bernon
1505 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1506 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1507 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1509 2008-01-10 Frédéric Bernon
1510 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1511 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1512 "blocking" ("block" parameter = 1).
1514 2008-01-10 Frédéric Bernon
1515 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1516 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1517 "Add return value to sys_mbox_post".
1519 2008-01-05 Frédéric Bernon
1520 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1521 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1522 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1523 indicate the number of pointers query by the mailbox. There is three defines
1524 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1525 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1526 parameter in your implementation, but to ignore it to keep the previous behavior.
1527 The new sys_mbox_trypost function return a value to know if the mailbox is
1528 full or if the message is posted. Take a look to sys_arch.txt for more details.
1529 This new function is used in tcpip_input (so, can be called in an interrupt
1530 context since the function is not blocking), and in recv_udp and recv_raw.
1532 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1533 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1534 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1535 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1536 documentation in the rawapi.txt file.
1538 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1539 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1541 2007-12-31 Frédéric Bernon, Luca Ceresoli
1542 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1543 in autoip". The change in etharp_raw could be removed, since all calls to
1544 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1545 wrong in the future.
1547 2007-12-30 Frédéric Bernon, Tom Evans
1548 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1549 Filtering" reported by Tom Evans.
1551 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1552 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1553 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1554 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1555 keep accepting new connections.
1557 2007-12-13 Frédéric Bernon
1558 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1559 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1561 2007-12-12 Frédéric Bernon
1562 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1563 are the one which have ram usage.
1565 2007-12-05 Frédéric Bernon
1566 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1567 set of variables (=0) or a local one (=1). In this last case, your port should
1568 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1569 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1571 2007-12-03 Simon Goldschmidt
1572 * ip.c: ip_input: check if a packet is for inp first before checking all other
1573 netifs on netif_list (speeds up packet receiving in most cases)
1575 2007-11-30 Simon Goldschmidt
1576 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1577 UDP: move a (connected) pcb selected for input to the front of the list of
1578 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1581 2007-11-28 Simon Goldschmidt
1582 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1584 2007-11-25 Simon Goldschmidt
1585 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1588 2007-11-24 Simon Goldschmidt
1589 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1590 to the new file netdb.c; included lwip_getaddrinfo.
1592 2007-11-21 Simon Goldschmidt
1593 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1594 based on the MTU of the netif used to send. Enabled by default. Disable by
1595 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1597 2007-11-19 Frédéric Bernon
1598 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1599 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1600 copy dns payload to parse the response), return an error if there is no place
1601 for a new query, and fix some minor problems.
1603 2007-11-16 Simon Goldschmidt
1604 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1605 removed files: core/inet.c, core/inet6.c
1606 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1607 inet and chksum part; changed includes in all lwIP files as appropriate
1609 2007-11-16 Simon Goldschmidt
1610 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1611 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1612 (gethostbyname/gethostbyname_r).
1614 2007-11-15 Jim Pettinato, Frédéric Bernon
1615 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1616 requests with RAW api interface. Initialization is done in lwip_init() with
1617 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1618 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1619 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1620 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1621 list with points to improve.
1623 2007-11-06 Simon Goldschmidt
1624 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1625 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1626 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1628 2007-11-06 Simon Goldschmidt
1629 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1630 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1631 implementation from netconn api applications.
1633 2007-11-03 Frédéric Bernon
1634 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1635 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1636 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1637 it. This is a first release which have to be improve for TCP. Note it used the
1638 netconn::recv_avail which need to be more "thread-safe" (note there is already
1639 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1641 2007-11-01 Frédéric Bernon, Marc Chaland
1642 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1643 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1644 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1645 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1646 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1648 2007-10-24 Frédéric Bernon
1649 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1650 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1651 some code (like we have talk in "patch #5919 : Create compile switch to remove
1652 select code"), but it could be done later.
1654 2007-10-08 Simon Goldschmidt
1655 * many files: Changed initialization: many init functions are not needed any
1656 more since we now rely on the compiler initializing global and static
1659 2007-10-06 Simon Goldschmidt
1660 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1661 to enqueue the received pbufs so that multiple packets can be reassembled
1662 simultaneously and no static reassembly buffer is needed.
1664 2007-10-05 Simon Goldschmidt
1665 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1666 all netifs (or ports) can use it.
1668 2007-10-05 Frédéric Bernon
1669 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1670 common function to reduce a little bit the footprint (for all functions using
1671 only the "netif" parameter).
1673 2007-10-03 Frédéric Bernon
1674 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1675 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1676 a little bit the footprint (for all functions using only the "netif" parameter).
1678 2007-09-15 Frédéric Bernon
1679 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1680 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1681 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1682 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1684 2007-09-10 Frédéric Bernon
1685 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1686 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1687 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1688 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1689 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1690 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1691 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1692 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1693 when it's queried (any direct call to "sysuptime" is changed by a call to
1694 snmp_get_sysuptime).
1696 2007-09-09 Frédéric Bernon, Bill Florac
1697 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1698 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1699 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1700 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1701 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1702 the next query message to receive the matching multicast streams).
1704 2007-09-08 Frédéric Bernon
1705 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1706 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1707 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1708 Enable to access to these fields with LWIP_TCP=0.
1710 2007-09-05 Frédéric Bernon
1711 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1712 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1713 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1714 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1715 help to reduce footprint, and to reduce "visibility" on the Internet.
1717 2007-09-05 Frédéric Bernon, Bill Florac
1718 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1719 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1720 parameters have to be provided: a task name, and a task stack size. For this
1721 one, since it's platform dependant, you could define the best one for you in
1722 your lwipopts.h. For port maintainers, you can just add these new parameters
1723 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1726 2007-09-05 Frédéric Bernon
1727 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1728 inside init.c for task #7142 "Sanity check user-configurable values".
1730 2007-09-04 Frédéric Bernon, Bill Florac
1731 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1732 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1733 value). It will avoid potential fragmentation problems, use a counter to know
1734 how many times a group is used on an netif, and free it when all applications
1735 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1736 check if LWIP_IGMP!=0).
1738 2007-09-03 Frédéric Bernon
1739 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1740 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1741 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1742 and/or the "interface" field (for netconn layer), for join/leave operations.
1743 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1744 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1746 2007-08-30 Frédéric Bernon
1747 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1748 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1749 with other API (application based on raw API, or future "socket2" API). Ports
1750 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1752 2007-08-30 Frédéric Bernon, Jonathan Larmour
1753 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1754 user-configurable values".
1756 2007-08-29 Frédéric Bernon
1757 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1758 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1759 spirit than the others modules. Modify some IGMP debug traces.
1761 2007-08-29 Frédéric Bernon
1762 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1763 Add lwip_init function to regroup all modules initializations, and to provide
1764 a place to add code for task #7142 "Sanity check user-configurable values".
1765 Ports maintainers should remove direct initializations calls from their code,
1766 and add init.c in their makefiles. Note that lwip_init() function is called
1767 inside tcpip_init, but can also be used by raw api users since all calls are
1768 disabled when matching options are disabled. Also note that their is new options
1769 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1771 2007-08-26 Marc Boucher
1772 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1773 since they can under certain circumstances be called with an invalid conn
1774 pointer after the connection has been closed (and conn has been freed).
1776 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1777 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1778 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1780 2007-08-22 Frédéric Bernon
1781 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1782 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1784 2007-08-22 Frédéric Bernon
1785 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1786 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1787 name is tcpip_input (we keep the name of 1.2.0 function).
1789 2007-08-17 Jared Grubb
1790 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1791 settings into new memp_std.h and optional user file lwippools.h. This adds
1792 more dynamic mempools, and allows the user to create an arbitrary number of
1793 mempools for mem_malloc.
1795 2007-08-16 Marc Boucher
1796 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1797 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1798 close the connection.
1800 2007-08-16 Marc Boucher
1801 * sockets.c: lwip_accept(): check netconn_peer() error return.
1803 2007-08-16 Marc Boucher
1804 * mem.c, mem.h: Added mem_calloc().
1806 2007-08-16 Marc Boucher
1807 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1808 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1809 and starving other message types.
1810 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1812 2007-08-16 Marc Boucher
1813 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1814 type and flgs (later renamed to flags).
1815 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1816 Improved lwip_recvfrom(). TCP push now propagated.
1818 2007-08-16 Marc Boucher
1819 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1822 2007-08-16 Marc Boucher
1823 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1824 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1825 Added PPPoE support and various PPP improvements.
1827 2007-07-25 Simon Goldschmidt
1828 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1829 making netbuf_copy_partial use this function.
1831 2007-07-25 Simon Goldschmidt
1832 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1833 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1836 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1837 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1838 a link callback in the netif struct, and functions to handle it. Be carefull
1839 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1840 if you want to be sure to be compatible with future changes...
1842 2007-06-30 Frédéric Bernon
1843 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1845 2007-06-21 Simon Goldschmidt
1846 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1847 LWIP_AUTOIP =0 and =1 to remove redundant code.
1849 2007-06-21 Simon Goldschmidt
1850 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1851 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1852 heap. This both prevents memory fragmentation and gives a higher speed
1853 at the cost of more memory consumption. Turned off by default.
1855 2007-06-21 Simon Goldschmidt
1856 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1857 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1858 int to be able to send a bigger buffer than 64K with one time (mainly
1859 used from lwip_send).
1861 2007-06-21 Simon Goldschmidt
1862 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1863 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1865 2007-06-21 Simon Goldschmidt
1866 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1867 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1868 changes on low memory or empty send-buffer.
1870 2007-06-18 Simon Goldschmidt
1871 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1872 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1873 used for ethernet and struct eth_addr already had a defined length of 6).
1875 2007-06-17 Simon Goldschmidt
1876 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1877 to disable UDP checksum generation on transmit.
1879 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1880 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1881 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1882 this macro to check "conn" parameter in api_msg.c functions.
1884 2007-06-11 Simon Goldschmidt
1885 * sockets.c, sockets.h: Added UDP lite support for sockets
1887 2007-06-10 Simon Goldschmidt
1888 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1889 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1892 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1893 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1894 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1895 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1896 (see TODO mark in the source code).
1898 2007-06-09 Simon Goldschmidt
1899 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1900 etharp_output() to match netif->output so etharp_output() can be used
1901 directly as netif->output to save one function call.
1903 2007-06-08 Simon Goldschmidt
1904 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1905 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1906 added initialization of those to ethernetif, slipif and loopif.
1908 2007-05-18 Simon Goldschmidt
1909 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1910 (defaulting to off for now) that can be set to 0 to send fragmented
1911 packets by passing PBUF_REFs down the stack.
1913 2007-05-23 Frédéric Bernon
1914 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1915 connections, such present in patch #5959.
1917 2007-05-23 Frédéric Bernon
1918 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1919 code in only one part...
1921 2007-05-18 Simon Goldschmidt
1922 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1923 elements to overflow. This is achieved by adding some bytes before and after
1924 each pool element (increasing their size, of course), filling them with a
1925 prominent value and checking them on freeing the element.
1926 Set it to 2 to also check every element in every pool each time memp_malloc()
1927 or memp_free() is called (slower but more helpful).
1929 2007-05-10 Simon Goldschmidt
1930 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1931 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1934 2007-05-11 Frédéric Bernon
1935 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1936 Include a function pointer instead of a table index in the message to reduce
1937 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1938 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1940 2007-05-10 Simon Goldschmidt
1941 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1942 \ extern "C" {' in all header files. Now you can write your application using
1943 the lwIP stack in C++ and simply #include the core files. Note I have left
1944 out the netif/ppp/*h header files for now, since I don't know which files are
1945 included by applications and which are for internal use only.
1947 2007-05-09 Simon Goldschmidt
1948 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1949 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1950 situations where some compilers might inline the copy and save a function
1951 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1953 2007-05-08 Simon Goldschmidt
1954 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1955 to be overriden in case the C-library malloc implementation is not protected
1956 against concurrent access.
1958 2007-05-04 Simon Goldschmidt (Atte Kojo)
1959 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1960 multiple packets to the same host.
1962 2007-05-04 Frédéric Bernon, Jonathan Larmour
1963 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1964 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1965 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1966 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1967 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1968 these fields are now renamed "addr" & "port".
1970 2007-04-11 Jonathan Larmour
1971 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1972 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1973 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1974 by the port in sys_arch.h if desired.
1976 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1977 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1978 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1979 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1981 2007-04-05 Frédéric Bernon
1982 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1984 2007-04-04 Simon Goldschmidt
1985 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1986 use this for and architecture-independent form to tell the compiler you intentionally
1987 are not using this variable. Can be overriden in cc.h.
1989 2007-03-28 Frédéric Bernon
1990 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1991 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1992 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1993 It will be used by DHCP to register a client hostname, but can also be use when you call
1996 2007-03-28 Frédéric Bernon
1997 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1998 initialize a network interface's flag with. It tell this interface is an ethernet
1999 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2000 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2002 2007-03-26 Frédéric Bernon, Jonathan Larmour
2003 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2004 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2005 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2006 is done in tcpip_init function.
2008 2007-03-22 Frédéric Bernon
2009 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2010 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2011 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2012 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2013 but never used. Fix msg_in.c with the correct #if test for a stat display.
2015 2007-03-21 Kieran Mansley
2016 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2017 Provides callback on netif up/down state change.
2019 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2020 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2021 ip.c, netif.h, tcpip.c, opt.h:
2022 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2023 filter per all network interfaces. Declare a new function in netif to enable to
2024 control the MAC filter (to reduce lwIP traffic processing).
2026 2007-03-11 Frédéric Bernon
2027 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2028 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2029 unless you know what you're doing (default are RFC1122 compliant). Note
2030 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2032 2007-03-08 Frédéric Bernon
2033 * tcp.h: Keepalive values can be configured at compile time, but don't change
2034 this unless you know what you're doing (default are RFC1122 compliant).
2036 2007-03-08 Frédéric Bernon
2037 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2038 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2039 on UDP sockets/netconn.
2041 2007-03-08 Simon Goldschmidt
2042 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2044 2007-03-06 Frédéric Bernon
2045 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2046 Implement SO_RCVTIMEO on UDP sockets/netconn.
2048 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2049 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2050 on the stack and remove the API msg type from memp
2052 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2053 * sockets.h, sockets.c: Move socket initialization to new
2054 lwip_socket_init() function.
2055 NOTE: this changes the API with ports. Ports will have to be
2056 updated to call lwip_socket_init() now.
2058 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2059 * api_lib.c: Use memcpy in netbuf_copy_partial.
2064 2008-03-17 Frédéric Bernon, Ed Kerekes
2065 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2066 some problems to fill the IP header on some targets, use now the
2067 ip.h macros to do it).
2069 2008-03-13 Frédéric Bernon
2070 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2071 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2072 TCP connection caused a crash. Note that using (lwip_)recvfrom
2073 like this is a bit slow and that using (lwip)getpeername is the
2074 good lwip way to do it (so, using recv is faster on tcp sockets).
2076 2008-03-12 Frédéric Bernon, Jonathan Larmour
2077 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2078 recv_raw() does not consume data", and the ping sample (with
2079 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2080 returned the IP payload, without the IP header).
2082 2008-03-04 Jonathan Larmour
2083 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2084 and/or warnings on some systems where mem_size_t and size_t differ.
2085 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2087 2008-03-04 Kieran Mansley (contributions by others)
2088 * Numerous small compiler error/warning fixes from contributions to
2089 mailing list after 1.3.0 release candidate made.
2091 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2092 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2094 2008-01-15 Kieran Mansley
2095 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2096 prevented from sending by a small send window, not just a zero
2099 2008-01-09 Jonathan Larmour
2100 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2101 conflict with Linux system headers.
2103 2008-01-06 Jonathan Larmour
2104 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2105 address entirely on receiving a DHCPNAK, and restarting discovery.
2107 2007-12-21 Simon Goldschmidt
2108 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2109 is not protected" by using new macros for interlocked access to modify/test
2110 netconn->recv_avail.
2112 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2113 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2115 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2116 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2117 of silly window avoidance and prevent lwIP from shrinking the window)
2119 2007-12-04 Simon Goldschmidt
2120 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2121 data packet was lost): add assert that all segment lists are empty in
2122 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2123 state from LAST_ACK in tcp_process
2125 2007-12-02 Simon Goldschmidt
2126 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2127 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2128 has to be set to 0 in lwipopts.h
2130 2007-12-02 Simon Goldschmidt
2131 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2132 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2133 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2134 This is a fix for thread-safety and allocates all items needed for a netconn
2135 when the netconn is created.
2137 2007-11-30 Simon Goldschmidt
2138 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2139 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2140 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2141 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2143 2007-11-27 Simon Goldschmidt
2144 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2145 letting ip_route only use netifs that are up.
2147 2007-11-27 Simon Goldschmidt
2148 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2149 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2150 sockets block most operations once they have seen a fatal error.
2152 2007-11-27 Simon Goldschmidt
2153 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2154 netif to send as an argument (to be able to send on netifs that are down).
2156 2007-11-26 Simon Goldschmidt
2157 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2160 2007-11-21 Simon Goldschmidt
2161 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2162 Fixed the nagle algorithm; nagle now also works for all raw API applications
2163 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2165 2007-11-12 Frédéric Bernon
2166 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2167 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2168 context in do_getaddr.
2170 2007-11-10 Simon Goldschmidt
2171 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2172 happen any time). Now the packet simply isn't enqueued when out of memory.
2174 2007-11-01 Simon Goldschmidt
2175 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2176 TCP_MSS if that is smaller) as long as no MSS option is received from the
2179 2007-11-01 Simon Goldschmidt
2180 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2181 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2182 sending our configured TCP_MSS instead of the one received).
2184 2007-11-01 Simon Goldschmidt
2185 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2186 calculated based on the configured TCP_MSS, not on the MSS option received
2189 2007-10-09 Simon Goldschmidt
2190 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2191 short and also was generated wrong if checksum coverage != tot_len;
2192 receive: checksum was calculated wrong if checksum coverage != tot_len
2194 2007-10-08 Simon Goldschmidt
2195 * mem.c: lfree was not updated in mem_realloc!
2197 2007-10-07 Frédéric Bernon
2198 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2199 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2200 this change cause an API breakage for netconn_addr, since a parameter
2201 type change. Any compiler should cause an error without any changes in
2202 yours netconn_peer calls (so, it can't be a "silent change"). It also
2203 reduce a little bit the footprint for socket layer (lwip_getpeername &
2204 lwip_getsockname use now a common lwip_getaddrname function since
2205 netconn_peer & netconn_addr have the same parameters).
2207 2007-09-20 Simon Goldschmidt
2208 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2209 by checking tcp_tw_pcbs also
2211 2007-09-19 Simon Goldschmidt
2212 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2214 2007-09-15 Mike Kleshov
2215 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2217 2007-09-06 Frédéric Bernon
2218 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2219 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2220 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2221 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2223 2007-08-30 Frédéric Bernon
2224 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2225 and fix some coding style.
2227 2007-08-28 Frédéric Bernon
2228 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2229 kind of packets. These packets are considered like Ethernet packets (payload
2230 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2231 are considered like IP packets (payload pointing to iphdr).
2233 2007-08-27 Frédéric Bernon
2234 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2235 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2236 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2238 2007-08-24 Kieran Mansley
2239 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2240 compiler (Paradigm C++)
2242 2007-08-09 Frédéric Bernon, Bill Florac
2243 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2244 Introduce IGMP_STATS to centralize statistics management.
2246 2007-08-09 Frédéric Bernon, Bill Florac
2247 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2248 packet on a udp pcb binded on an netif's IP address, and not on "any".
2250 2007-08-09 Frédéric Bernon, Bill Florac
2251 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2252 This is mainly on using lookup/lookfor, and some coding styles...
2254 2007-07-26 Frédéric Bernon (and "thedoctor")
2255 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2257 2007-07-25 Simon Goldschmidt
2258 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2259 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2260 (tcp_output is called again later from tcp timers).
2262 2007-07-25 Simon Goldschmidt
2263 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2264 copy_from_pbuf, which illegally modified the given pbuf.
2266 2007-07-25 Simon Goldschmidt
2267 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2268 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2270 2007-07-24 Simon Goldschmidt
2271 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2272 correct state (must be CLOSED).
2274 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2275 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2276 allocation. It now returns NULL.
2278 2007-07-13 Frédéric Bernon
2279 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2282 2007-07-13 Frédéric Bernon
2283 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2284 because current code doesn't follow rawapi.txt documentation.
2286 2007-07-13 Kieran Mansley
2287 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2288 out of sequence processing of received packets
2290 2007-07-03 Simon Goldschmidt
2291 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2292 assumption is made that this pbuf is in one piece (i.e. not chained). These
2293 assumptions clash with the possibility of converting to fully pool-based
2294 pbuf implementations, where PBUF_RAM pbufs might be chained.
2296 2007-07-03 Simon Goldschmidt
2297 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2298 when closing tcp netconns: removed conn->sem, less context switches when
2299 closing, both netconn_close and netconn_delete should safely close tcp
2302 2007-07-02 Simon Goldschmidt
2303 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2304 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2305 to cache ARP table indices with each pcb instead of single-entry cache for
2308 2007-07-02 Simon Goldschmidt
2309 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2310 warnings when assigning to smaller types.
2312 2007-06-28 Simon Goldschmidt
2313 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2315 2007-06-28 Simon Goldschmidt
2316 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2317 a segment contained chained pbufs)
2319 2007-06-28 Frédéric Bernon
2320 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2321 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2322 possible to define this macro in your own lwipopts.h to always use C library's
2323 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2325 2007-06-28 Frédéric Bernon
2326 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2327 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2328 in api_lib/api_msg (use pointers and not type with table, etc...)
2330 2007-06-26 Simon Goldschmidt
2331 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2333 2007-06-25 Simon Goldschmidt
2334 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2335 for udp packets with no matching pcb.
2337 2007-06-25 Simon Goldschmidt
2338 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2339 could get udp input packets if the remote side matched.
2341 2007-06-13 Simon Goldschmidt
2342 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2343 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2345 2007-06-13 Simon Goldschmidt
2346 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2347 -> netconn_new_..() does not allocate a new connection for unsupported
2350 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2351 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2352 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2354 2007-06-13 Frédéric Bernon, Matthias Weisser
2355 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2356 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2357 some macro names collision with some OS macros.
2359 2007-06-11 Simon Goldschmidt
2360 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2361 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2362 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2365 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2366 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2367 where TCP flags wasn't initialized in tcp_keepalive.
2369 2007-06-03 Simon Goldschmidt
2370 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2371 registered, p->payload was modified without modifying p->len if sending
2372 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2374 2007-06-03 Simon Goldschmidt
2375 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2376 re-used the input pbuf even if that didn't have enough space to include the
2377 link headers. Now the space is tested and a new pbuf is allocated for the
2378 echo response packet if the echo request pbuf isn't big enough.
2380 2007-06-01 Simon Goldschmidt
2381 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2383 2007-05-23 Frédéric Bernon
2384 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2385 allocated by do_listen if success) and netconn_accept errors handling. In
2386 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2387 by ASSERT, except for netconn_delete.
2389 2007-05-23 Frédéric Bernon
2390 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2391 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2392 directly close the recvmbox).
2394 2007-05-22 Simon Goldschmidt
2395 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2396 bound but unconnected (and non-listening) tcp_pcbs.
2398 2007-05-22 Frédéric Bernon
2399 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2400 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2401 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2402 like "sys_timeout" in their application threads.
2404 2007-05-22 Frédéric Bernon
2405 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2406 which parameters are used by which do_xxx function, and to avoid "misusing"
2407 parameters (patch #5938).
2409 2007-05-22 Simon Goldschmidt
2410 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2411 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2412 is only 8 bits wide. This affects the api, as there, the protocol was
2415 2007-05-18 Simon Goldschmidt
2416 * memp.c: addition to patch #5913: smaller pointer was returned but
2417 memp_memory was the same size -> did not save memory.
2419 2007-05-16 Simon Goldschmidt
2420 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2423 2007-05-16 Simon Goldschmidt
2424 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2425 as the one of the netif used for sending to prevent sending from old
2426 addresses after a netif address gets changed (partly fixes bug #3168).
2428 2007-05-16 Frédéric Bernon
2429 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2430 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2431 tcpip_init) because we have to be sure that network interfaces are already
2432 added (mac filter is updated only in igmp_init for the moment).
2434 2007-05-16 Simon Goldschmidt
2435 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2436 into sys_arch_sem_wait calls to prevent timers from running while waiting
2437 for the heap. This fixes bug #19167.
2439 2007-05-13 Simon Goldschmidt
2440 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2441 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2444 2007-05-07 Simon Goldschmidt
2445 * mem.c: Another attempt to fix bug #17922.
2447 2007-05-04 Simon Goldschmidt
2448 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2449 implementation so that it can be reused (don't allocate the target
2450 pbuf inside pbuf_copy()).
2452 2007-05-04 Simon Goldschmidt
2453 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2454 to save a little RAM (next pointer of memp is not used while not in pool).
2457 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2460 2007-04-23 Simon Goldschmidt
2461 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2462 in NULL reference for incoming TCP packets". Loopif has to be configured
2463 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2464 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2465 putting packets on a list that is fed to the stack by calling loopif_poll()
2466 (single-thread / NO_SYS / polling environment where e.g.
2467 netif->input() = ip_input).
2469 2007-04-17 Jonathan Larmour
2470 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2471 the difference between two u16_t's.
2472 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2473 MEMP_NUM_NETCONN in sockets.c right now.
2475 2007-04-12 Jonathan Larmour
2476 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2478 2007-04-12 Kieran Mansley
2479 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2480 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2482 2007-04-11 Simon Goldschmidt
2483 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2484 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2485 pbuf.c: removed functions no needed any more (by etharp).
2487 2007-04-11 Kieran Mansley
2488 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2489 "Constant is long" warnings with 16bit compilers. Contributed by
2490 avatar@mmlab.cse.yzu.edu.tw
2492 2007-04-05 Frédéric Bernon, Jonathan Larmour
2493 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2494 the mailbox is active". Now, the post is only done during a connect, and do_send,
2495 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2497 2007-04-03 Frédéric Bernon
2498 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2499 packets. See patch #5834.
2501 2007-03-30 Frédéric Bernon
2502 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2503 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2505 2007-03-30 Frédéric Bernon
2506 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2507 others environment defines (these were too "generic").
2509 2007-03-28 Frédéric Bernon
2510 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2511 result and can cause a crash. lwip_send now check netbuf_ref result.
2513 2007-03-28 Simon Goldschmidt
2514 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2515 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2516 defined. This is the way it should have been already (looking at
2519 2007-03-28 Kieran Mansley
2520 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2521 IP and TCP headers *and* physical link headers
2523 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2524 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2525 to send some garbage. It is not a definitive solution, but the patch does solve
2526 the problem for most cases.
2528 2007-03-22 Frédéric Bernon
2529 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2531 2007-03-22 Frédéric Bernon
2532 * api_lib.c: somes resources couldn't be freed if there was errors during
2533 netconn_new_with_proto_and_callback.
2535 2007-03-22 Frédéric Bernon
2536 * ethernetif.c: update netif->input calls to check return value. In older ports,
2537 it's a good idea to upgrade them, even if before, there could be another problem
2538 (access to an uninitialized mailbox).
2540 2007-03-21 Simon Goldschmidt
2541 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2542 by casting to unsigned).
2544 2007-03-21 Frédéric Bernon
2545 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2546 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2547 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2548 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2549 faster and more reliable communication between api_lib and tcpip.
2551 2007-03-21 Frédéric Bernon
2552 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2554 2007-03-21 Frédéric Bernon
2555 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2557 2007-03-21 Kieran Mansley
2558 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2561 2007-03-21 Kieran Mansley
2562 * Fix all uses of pbuf_header to check the return value. In some
2563 cases just assert if it fails as I'm not sure how to fix them, but
2564 this is no worse than before when they would carry on regardless
2567 2007-03-21 Kieran Mansley
2568 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2569 comment out missing header include in icmp.c
2571 2007-03-20 Frédéric Bernon
2572 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2573 synchronized with memp.h.
2575 2007-03-20 Frédéric Bernon
2576 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2577 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2578 network interfaces. Also fix a compiler warning.
2580 2007-03-20 Kieran Mansley
2581 * udp.c: Only try and use pbuf_header() to make space for headers if
2582 not a ROM or REF pbuf.
2584 2007-03-19 Frédéric Bernon
2585 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2588 2007-03-19 Frédéric Bernon
2589 * Remove unimplemented "memp_realloc" function from memp.h.
2591 2007-03-11 Simon Goldschmidt
2592 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2595 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2596 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2597 (missing `const' qualifier in socket functions), to get more compatible to
2598 standard POSIX sockets.
2600 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2601 * sockets.c: Add asserts inside bind, connect and sendto to check input
2602 parameters. Remove excessive set_errno() calls after get_socket(), because
2603 errno is set inside of get_socket(). Move last sock_set_errno() inside
2606 2007-03-09 Simon Goldschmidt
2607 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2608 was allocated too small.
2610 2007-03-06 Simon Goldschmidt
2611 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2612 the stack from concurrent access.
2614 2007-03-06 Frédéric Bernon, Dmitry Potapov
2615 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2616 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2618 2007-03-06 Simon Goldschmidt
2619 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2620 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2622 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2623 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2624 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2625 Allow to do ARP processing for incoming packets inside tcpip_thread
2626 (protecting ARP layer against concurrent access). You can also disable
2627 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2628 Older ports have to use tcpip_ethinput.
2630 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2631 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2632 from pointer target type"
2634 2007-03-05 Frédéric Bernon
2635 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2636 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2638 2007-03-04 Frédéric Bernon
2639 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2642 2007-03-04 Frédéric Bernon
2643 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2645 The api_msg struct stay on the stack (not moved to netconn struct).
2647 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2648 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2649 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2650 Also fixed cast warning in pbuf_alloc()
2652 2007-03-04 Simon Goldschmidt
2653 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2654 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2656 2007-03-03 Frédéric Bernon
2657 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2658 It is static, and never used in udp.c except udp_init().
2660 2007-03-02 Simon Goldschmidt
2661 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2662 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2663 initialized before tcpip_thread is running (e.g. before OS is started)
2665 2007-03-02 Frédéric Bernon
2666 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2669 2007-02-28 Kieran Mansley
2670 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2671 outside the region of the pbuf by pbuf_header()
2673 2007-02-28 Kieran Mansley
2674 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2675 when supplied timeout is also non-zero
2679 2006-12-05 Leon Woestenberg
2680 * CHANGELOG: Mention STABLE-1.2.0 release.
2684 2006-12-01 Christiaan Simons
2685 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2686 Note this is a workaround. Currently I have no other options left.
2688 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2689 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2690 to include/lwip/opt.h.
2691 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2692 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2693 * opt.h: Add above new options.
2695 2006-08-18 Christiaan Simons
2696 * tcp_{in,out}.c: added SNMP counters.
2697 * ipv4/ip.c: added SNMP counters.
2698 * ipv4/ip_frag.c: added SNMP counters.
2700 2006-08-08 Christiaan Simons
2701 * etharp.{c,h}: added etharp_find_addr() to read
2702 (stable) ethernet/IP address pair from ARP table
2704 2006-07-14 Christiaan Simons
2705 * mib_structs.c: added
2706 * include/lwip/snmp_structs.h: added
2707 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2709 2006-07-06 Christiaan Simons
2710 * snmp/asn1_{enc,dec}.c added
2712 * snmp/msg_{in,out}.c added
2713 * include/lwip/snmp_asn1.h added
2714 * include/lwip/snmp_msg.h added
2715 * doc/snmp_agent.txt added
2717 2006-03-29 Christiaan Simons
2718 * inet.c, inet.h: Added platform byteswap support.
2719 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2720 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2724 2006-11-30 Christiaan Simons
2725 * dhcp.c: Fixed false triggers of request_timeout.
2727 2006-11-28 Christiaan Simons
2728 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2730 2006-10-11 Christiaan Simons
2731 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2732 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2733 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2734 identifier from 170 to 136 (bug #17574).
2736 2006-10-10 Christiaan Simons
2737 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2739 2006-08-17 Christiaan Simons
2740 * udp.c: Fixed bug #17200, added check for broadcast
2741 destinations for PCBs bound to a unicast address.
2743 2006-08-07 Christiaan Simons
2744 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2746 2006-06-27 Christiaan Simons
2747 * api_msg.c: Applied patch for cold case (bug #11135).
2748 In accept_function() ensure newconn->callback is always initialized.
2750 2006-06-15 Christiaan Simons
2751 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2752 facilitate printing of mem_size_t and u16_t statistics.
2754 2006-06-14 Christiaan Simons
2755 * api_msg.c: Applied patch #5146 to handle allocation failures
2756 in accept() by Kevin Lawson.
2758 2006-05-26 Christiaan Simons
2759 * api_lib.c: Removed conn->sem creation and destruction
2760 from netconn_write() and added sys_sem_new to netconn_new_*.
2764 2006-03-03 Christiaan Simons
2765 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2766 access and added pbuf_alloc() return value checks.
2768 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2769 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2770 now handled by the checksum routine properly.
2772 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2773 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2774 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2776 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2777 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2778 submitted by Mitrani Hiroshi.
2780 2005-12-15 Christiaan Simons
2781 * inet.c: Disabled the added summing routine to preserve code space.
2783 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2784 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2785 Added Curt McDowell's optimized checksumming routine for future
2786 inclusion. Need to create test case for unaliged, aligned, odd,
2787 even length combination of cases on various endianess machines.
2789 2005-12-09 Christiaan Simons
2790 * inet.c: Rewrote standard checksum routine in proper portable C.
2792 2005-11-25 Christiaan Simons
2793 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2794 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2795 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2797 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2798 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2799 routine by Peter Jolasson.
2800 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2802 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2803 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2804 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2806 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2807 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2809 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2810 * udp.c: UDP pcb->recv() was called even when it was NULL.
2814 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2815 * etharp.*: Disabled multiple packets on the ARP queue.
2816 This clashes with TCP queueing.
2818 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2819 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2820 Halved the ARP period, doubled the period counts.
2821 ETHARP_MAX_PENDING now should be at least 2. This prevents
2822 the counter from reaching 0 right away (which would allow
2823 too little time for ARP responses to be received).
2825 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2826 * dhcp.c: Decline messages were not multicast but unicast.
2827 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2828 Do not try hard to insert arbitrary packet's source address,
2829 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2830 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2831 querying an address will see it appear in the cache (DHCP could
2832 suffer from this when a server invalidly gave an in-use address.)
2833 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2834 comparing network addresses (identifiers), not the network masks
2836 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2837 IP address actually belongs to the network of the given interface.
2839 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2840 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2844 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2845 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2846 even if one is already pending, if the rcv_wnd is above a threshold
2847 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2848 delayed ACK in order to open the window if the stack is only receiving data.
2850 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2851 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2853 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2854 * etharp.c: Make sure the first pbuf queued on an ARP entry
2855 is properly ref counted.
2857 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2858 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2859 warnings about comparison.
2860 * pbuf.c: Stopped compiler complaining of empty if statement
2861 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2862 * tcp.c: Stopped compiler complaining of empty if statement
2863 when LWIP_DEBUGF() empty.
2864 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2865 * inet.c: Added a couple of casts to quiet the compiler.
2866 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2868 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2869 * inet.c: Made data types consistent in inet_ntoa().
2870 Added casts for return values of checksum routines, to pacify compiler.
2871 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2872 Small corrections to some debugging statements, to pacify compiler.
2874 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2875 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2876 * ethernetif.c Updated low_level_output() to match prototype for
2877 netif->linkoutput and changed low_level_input() similarly for consistency.
2878 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2879 of raw_recv() in raw.h and so avoid compiler error.
2880 * sockets.c: Added trivial (int) cast to keep compiler happier.
2881 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2887 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2888 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2889 your cc.h file defines this either 1 or 0. If non-defined,
2891 * .c: Added <string.h> and <errno.h> includes where used.
2892 * etharp.c: Made some array indices unsigned.
2894 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2895 * netif.*: Added netif_set_up()/down().
2896 * dhcp.c: Changes to restart program flow.
2898 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2899 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2900 single-pass lookup for different candidates. Should exploit locality.
2902 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2903 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2904 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2905 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2906 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2910 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2911 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2912 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2913 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2914 is to prefix the 14-bit Ethernet headers with two padding bytes.
2916 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2917 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2918 * etharp.c: Fixed the case where the packet that initiates the ARP request
2919 is not queued, and gets lost. Fixed the case where the packets destination
2920 address is already known; we now always queue the packet and perform an ARP
2927 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2928 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2929 * Fixed two possible NULL references in rare cases.
2935 * Fixed DHCP which did not include the IP address in DECLINE messages.
2939 * etharp.c has been hauled over a bit.
2945 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2946 * Packets sent from ARP queue had invalid source hardware address.
2950 * Pass-by ARP requests do now update the cache.
2954 * No longer dependent on ctype.h.
2955 * New socket options.
2956 * Raw IP pcb support.
2962 * Some debug formatters and casts fixed.
2963 * Numereous fixes in PPP.
2967 * DEBUGF now is LWIP_DEBUGF
2968 * pbuf_dechain() has been re-enabled.
2969 * Mentioned the changed use of CVS branches in README.
2975 * Fixed pool pbuf memory leak in pbuf_alloc().
2976 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2977 Reported by Savin Zlobec.
2979 * PBUF_POOL chains had their tot_len field not set for non-first
2980 pbufs. Fixed in pbuf_alloc().
2984 * Added PPP stack contributed by Marc Boucher
2988 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2990 * ARP queueuing now queues the latest packet instead of the first.
2991 This is the RFC recommended behaviour, but can be overridden in
2998 * TCP has been fixed to deal with the new use of the pbuf->ref
3001 * DHCP dhcp_inform() crash bug fixed.
3005 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3006 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3007 Implemented by David Haas.
3013 * The packet buffer implementation has been enhanced to support
3014 zero-copy and copy-on-demand for packet buffers which have their
3015 payloads in application-managed memory.
3016 Implemented by David Haas.
3018 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3019 if an outgoing packet can be directly sent on the link, or perform
3020 a copy-on-demand when necessary.
3022 The application can safely assume the packet is sent, and the RAM
3023 is available to the application directly after calling udp_send()
3024 or similar function.
3028 * ARP_QUEUEING should now correctly work for all cases, including
3030 Implemented by Leon Woestenberg.
3034 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3035 to a '0.0.0.0' IP address.
3037 * The packet buffer implementation is changed. The pbuf->ref counter
3038 meaning has changed, and several pbuf functions have been
3039 adapted accordingly.
3041 * netif drivers have to be changed to set the hardware address length field
3042 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3043 See the contrib/ports/c16x cs8900 driver as a driver example.
3045 * netif's have a dhcp field that must be initialized to NULL by the driver.
3046 See the contrib/ports/c16x cs8900 driver as a driver example.
3048 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3049 logged in CVS but have not been explained here.
3051 (0.5.3) Changes since version 0.5.2
3055 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3056 threads because it wasn't protected by semaphores.
3060 * struct ip_addr now packed.
3062 * The name of the time variable in arp.c has been changed to ctime
3063 to avoid conflicts with the time() function.
3065 (0.5.2) Changes since version 0.5.1
3069 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3073 * A bug in tcp_parseopt() could cause the stack to hang because of a
3074 malformed TCP option.
3076 * The address of new connections in the accept() function in the BSD
3077 socket library was not handled correctly.
3079 * pbuf_dechain() did not update the ->tot_len field of the tail.
3081 * Aborted TCP connections were not handled correctly in all
3086 * All protocol header structs are now packed.
3088 * The ->len field in the tcp_seg structure now counts the actual
3089 amount of data, and does not add one for SYN and FIN segments.
3091 (0.5.1) Changes since version 0.5.0
3095 * Possible to run as a user process under Linux.
3097 * Preliminary support for cross platform packed structs.
3099 * ARP timer now implemented.
3103 * TCP output queue length was badly initialized when opening
3106 * TCP delayed ACKs were not sent correctly.
3108 * Explicit initialization of BSS segment variables.
3110 * read() in BSD socket library could drop data.
3112 * Problems with memory alignment.
3114 * Situations when all TCP buffers were used could lead to
3117 * TCP MSS option wasn't parsed correctly.
3119 * Problems with UDP checksum calculation.
3121 * IP multicast address tests had endianess problems.
3123 * ARP requests had wrong destination hardware address.
3127 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3129 * A ->linkoutput() member was added to struct netif.
3131 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3133 * ntoh* macros are now null definitions for big endian CPUs.
3135 (0.5.0) Changes since version 0.4.2
3139 * Redesigned operating system emulation layer to make porting easier.
3141 * Better control over TCP output buffers.
3143 * Documenation added.
3147 * Locking issues in buffer management.
3149 * Bugfixes in the sequential API.
3151 * IP forwarding could cause memory leakage. This has been fixed.
3155 * Directory structure somewhat changed; the core/ tree has been
3158 (0.4.2) Changes since version 0.4.1
3162 * Experimental ARP implementation added.
3164 * Skeleton Ethernet driver added.
3166 * Experimental BSD socket API library added.
3170 * In very intense situations, memory leakage could occur. This has
3175 * Variables named "data" and "code" have been renamed in order to
3176 avoid name conflicts in certain compilers.
3178 * Variable++ have in appliciable cases been translated to ++variable
3179 since some compilers generate better code in the latter case.
3181 (0.4.1) Changes since version 0.4
3185 * TCP: Connection attempts time out earlier than data
3186 transmissions. Nagle algorithm implemented. Push flag set on the
3187 last segment in a burst.
3189 * UDP: experimental support for UDP-Lite extensions.
3193 * TCP: out of order segments were in some cases handled incorrectly,
3194 and this has now been fixed. Delayed acknowledgements was broken
3195 in 0.4, has now been fixed. Binding to an address that is in use
3196 now results in an error. Reset connections sometimes hung an
3197 application; this has been fixed.
3199 * Checksum calculation sometimes failed for chained pbufs with odd
3200 lengths. This has been fixed.
3202 * API: a lot of bug fixes in the API. The UDP API has been improved
3203 and tested. Error reporting and handling has been
3204 improved. Logical flaws and race conditions for incoming TCP
3205 connections has been found and removed.
3207 * Memory manager: alignment issues. Reallocating memory sometimes
3208 failed, this has been fixed.
3210 * Generic library: bcopy was flawed and has been fixed.
3214 * API: all datatypes has been changed from generic ones such as
3215 ints, to specified ones such as u16_t. Functions that return
3216 errors now have the correct type (err_t).
3218 * General: A lot of code cleaned up and debugging code removed. Many
3219 portability issues have been fixed.
3221 * The license was changed; the advertising clause was removed.
3225 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3226 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3229 (0.4) Changes since version 0.3.1
3231 * Memory management has been radically changed; instead of
3232 allocating memory from a shared heap, memory for objects that are
3233 rapidly allocated and deallocated is now kept in pools. Allocation
3234 and deallocation from those memory pools is very fast. The shared
3235 heap is still present but is used less frequently.
3237 * The memory, memory pool, and packet buffer subsystems now support
3238 4-, 2-, or 1-byte alignment.
3240 * "Out of memory" situations are handled in a more robust way.
3242 * Stack usage has been reduced.
3244 * Easier configuration of lwIP parameters such as memory usage,
3245 TTLs, statistics gathering, etc. All configuration parameters are
3246 now kept in a single header file "lwipopts.h".
3248 * The directory structure has been changed slightly so that all
3249 architecture specific files are kept under the src/arch
3252 * Error propagation has been improved, both in the protocol modules
3255 * The code for the RTXC architecture has been implemented, tested
3258 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3259 the Internet checksum modules.
3261 * Bugs related to porting between a 32-bit and a 16-bit architecture
3262 have been found and corrected.
3264 * The license has been changed slightly to conform more with the
3265 original BSD license, including the advertisement clause.
3267 (0.3.1) Changes since version 0.3
3269 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3270 RAM never returned the RAM when the pbuf was deallocated.
3272 * TCP congestion control, window updates and retransmissions did not
3273 work correctly. This has now been fixed.
3275 * Bugfixes in the API.
3277 (0.3) Changes since version 0.2
3279 * New and improved directory structure. All include files are now
3280 kept in a dedicated include/ directory.
3282 * The API now has proper error handling. A new function,
3283 netconn_err(), now returns an error code for the connection in
3286 * Improvements in the memory management subsystem. The system now
3287 keeps a pointer to the lowest free memory block. A new function,
3288 mem_malloc2() tries to allocate memory once, and if it fails tries
3289 to free some memory and retry the allocation.
3291 * Much testing has been done with limited memory
3292 configurations. lwIP now does a better job when overloaded.
3294 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3296 * Many bugfixes in the TCP code:
3298 - Fixed a bug in tcp_close().
3300 - The TCP receive window was incorrectly closed when out of
3301 sequence segments was received. This has been fixed.
3303 - Connections are now timed-out of the FIN-WAIT-2 state.
3305 - The initial congestion window could in some cases be too
3306 large. This has been fixed.
3308 - The retransmission queue could in some cases be screwed up. This
3311 - TCP RST flag now handled correctly.
3313 - Out of sequence data was in some cases never delivered to the
3314 application. This has been fixed.
3316 - Retransmitted segments now contain the correct acknowledgment
3317 number and advertised window.
3319 - TCP retransmission timeout backoffs are not correctly computed
3320 (ala BSD). After a number of retransmissions, TCP now gives up
3323 * TCP connections now are kept on three lists, one for active
3324 connections, one for listening connections, and one for
3325 connections that are in TIME-WAIT. This greatly speeds up the fast
3326 timeout processing for sending delayed ACKs.
3328 * TCP now provides proper feedback to the application when a
3329 connection has been successfully set up.
3331 * More comments have been added to the code. The code has also been
3332 somewhat cleaned up.
3334 (0.2) Initial public release.