5 * [Enter new changes just after this line - do not remove this line]
9 2012-03-25: Simon Goldschmidt (idea by Mason)
10 * posix/*: added posix-compatibility include files posix/netdb.h and posix/sys/socket.h
11 which are a simple wrapper to the correct lwIP include files.
13 2012-01-16: Simon Goldschmidt
14 * opt.h, icmp.c: Added option CHECKSUM_GEN_ICMP
16 2011-12-17: Simon Goldschmidt
17 * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW)
20 2011-09-27: Simon Goldschmidt
21 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
22 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
24 2011-09-21: Simon Goldschmidt
25 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
26 send (TCP only, bug #33820)
28 2011-09-21: Simon Goldschmidt
29 * init.c: Converted runtime-sanity-checks into compile-time checks that can
30 be disabled (since runtime checks can often not be seen on embedded targets)
32 2011-09-11: Simon Goldschmidt
33 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
34 to get a clear separation of which functions an application or port may use
37 2011-09-11: Simon Goldschmidt
38 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
39 initial local TCP/UDP ports (so that different port ranges are used after
40 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
42 2011-09-03: Simon Goldschmidt
43 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
45 2011-08-24: Simon Goldschmidt
46 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
48 2011-07-26: Simon Goldschmidt
49 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
50 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
52 2011-07-21: Simon Goldschmidt (patch by hanhui)
53 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
54 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
55 Also added code to allow ip_forward() to forward non-broadcast packets to
56 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
58 2011-07-21: Simon Goldschmidt
59 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
60 ioctl/FIONREAD return the size of the next pending datagram.
62 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
63 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
66 2011-05-25: Simon Goldschmidt
67 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
68 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
69 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
70 code so that the code is more readable.
72 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
73 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
74 Ivan! (this is work in progress: we're just post release anyway :-)
76 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
77 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
83 2013-04-26: Sylvain Rochet
84 * ip6.h, cleared compilation warning, C++ style comments are not allowed in ISO C90
86 2013-04-24: patch by Liam <morepork>
87 * api_msg.c: patch #8008 Fix a potential null pointer dereference in assert
89 2013-04-24: Simon Goldschmidt
90 * igmp.c: fixed possible division by zero
92 2013-04-24: Simon Goldschmidt
93 * ip6.h, some ipv6 C files: fixed bug #38526 Coverity: Recursive Header Inclusion in ip6.h
95 2013-04-24: Simon Goldschmidt (patch by Emil Ljungdahl):
96 * netif.c: fixed bug #38586 netif_loop_output() "deadlocks"
98 2013-01-15: Simon Goldschmidt
99 * ip4.c: fixed bug #37665 ip_canforward operates on address in wrong byte order
101 2013-01-15: Simon Goldschmidt
102 * pbuf.h: fixed bug #38097 pbuf_free_ooseq() warning
104 2013-01-14: Simon Goldschmidt
105 * dns.c: fixed bug #37705 Possible memory corruption in DNS query
107 2013-01-11: Simon Goldschmidt
108 * raw.c: fixed bug #38066 Raw pcbs can alter packet without eating it
110 2012-09-26: Simon Goldschmidt
111 * api_msg.c: fixed bug #37405 'err_tcp()' uses already freed 'netconn' object
113 2012-09-26: patch by Henrik Persson
114 * dhcp.c: patch #7843 Fix corner case with dhcp timeouts
116 2012-09-26: patch by Henrik Persson
117 * dhcp.c: patch #7840 Segfault in dhcp_parse_reply if no end marker in dhcp packet
119 2012-08-22: Simon Goldschmidt
120 * memp.c: fixed bug #37166: memp_sanity check loops itself
122 2012-08-13: Simon Goldschmidt
123 * dhcp.c: fixed bug #36645: Calling dhcp_release before dhcp_start
126 2012-08-13: Simon Goldschmidt
127 * msg_out.c: fixed bug #36840 snmp_send_trap() NULL de-reference if traps
128 configured but no interfaces available
130 2012-08-13: Simon Goldschmidt
131 * dns.c: fixed bug #36899 DNS TTL 0 is cached for a long time
133 2012-05-11: Simon Goldschmidt (patch by Marty)
134 * memp.c: fixed bug #36412: memp.c does not compile when
135 MEMP_OVERFLOW_CHECK > zero and MEMP_SEPARATE_POOLS == 1
137 2012-05-08: Simon Goldschmidt
138 * tcp_out.c: fixed bug #36380: unsent_oversize mismatch in 1.4.1RC1 (this was
139 a debug-check issue only)
141 2012-05-03: Simon Goldschmidt (patch by Sylvain Rochet)
142 * ppp.c: fixed bug #36283 (PPP struct used on header size computation and
145 2012-05-03: Simon Goldschmidt (patch by David Empson)
146 * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with
149 2012-03-27: Simon Goldschmidt
150 * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
152 2012-03-27: Simon Goldschmidt (patch by Mason)
153 * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
156 2012-03-25: Simon Goldschmidt
157 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
158 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
160 2012-03-25: Simon Goldschmidt
161 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
162 pollution in api_msg.c and netifapi.c
164 2012-03-22: Simon Goldschmidt
165 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
167 2012-03-20: Simon Goldschmidt (patch by Mason)
168 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
170 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
171 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
172 possible bug on little endian system
174 2012-02-23: Simon Goldschmidt
175 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
176 (introduced when fixing bug# 33551)
178 2012-02-16: Simon Goldschmidt
179 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
180 (bug #35541: PPP Memory Leak)
182 2012-02-16: Simon Goldschmidt
183 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
184 (introduced when fixing bug# 33551)
186 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
187 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
189 2012-02-15: Simon Goldschmidt
190 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
193 2012-02-12: Simon Goldschmidt
194 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
195 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
197 2012-02-11: Simon Goldschmidt
198 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
201 2012-01-22: Simon Goldschmidt
202 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
204 2012-01-21: Simon Goldschmidt
205 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
207 2012-01-20: Simon Goldschmidt
208 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
210 2012-01-20: Simon Goldschmidt
211 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
213 2011-11-25: Simon Goldschmidt
214 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
215 tcp_active_pcbs in some cases
217 2011-11-23: Simon Goldschmidt
218 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
221 2011-11-22: Simon Goldschmidt
222 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
223 netif is brought down
225 2011-10-28: Simon Goldschmidt
226 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
228 2011-10-23: Simon Goldschmidt
229 * mem.c: fixed bug #34429: possible memory corruption with
230 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
232 2011-10-18: Simon Goldschmidt
233 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
236 2011-10-18: Simon Goldschmidt
237 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
238 windows (bug #34176 select after non-blocking send times out)
240 2011-10-18: Simon Goldschmidt
241 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
242 consider netif->mtu, causes slow network
244 2011-10-18: Simon Goldschmidt
245 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
247 2011-10-18: Simon Goldschmidt
248 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
250 2011-10-17: Simon Goldschmidt
251 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
253 2011-10-13: Simon Goldschmidt
254 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
255 zero window is received) by starting the persist timer when a zero window is
256 received, not when we have more data queued for sending than fits into the
259 2011-10-13: Simon Goldschmidt
260 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
262 2011-10-13: Simon Goldschmidt
263 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
264 used and not all protocols are enabled
266 2011-10-12: Simon Goldschmidt
267 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
269 2011-10-09: Simon Goldschmidt
270 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
271 byte value when pcb->unacked != NULL
273 2011-10-09: Simon Goldschmidt
274 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
276 2011-09-27: Simon Goldschmidt
277 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
279 2011-09-27: Simon Goldschmidt
280 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
282 2011-09-27: Simon Goldschmidt
283 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
285 2011-09-24: Simon Goldschmidt
286 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
288 2011-09-23: Simon Goldschmidt
289 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
290 the last packet including FIN can lose data
292 2011-09-22: Simon Goldschmidt
293 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
296 2011-09-21: Simon Goldschmidt
297 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
300 2011-09-20: Simon Goldschmidt
301 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
303 2011-09-11: Simon Goldschmidt
304 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
307 2011-09-09: Simon Goldschmidt
308 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
311 2011-09-03: Simon Goldschmidt
312 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
313 is aggregated and sent to application
315 2011-09-01: Simon Goldschmidt
316 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
319 2011-09-01: Simon Goldschmidt
320 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
322 2011-08-24: Simon Goldschmidt
323 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
325 2011-08-24: Simon Goldschmidt
326 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
327 accept() on UDP connections
329 2011-08-24: Simon Goldschmidt
330 * sockets.h: fixed bug #34057 socklen_t should be a typedef
332 2011-08-24: Simon Goldschmidt
333 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
335 2011-08-24: Simon Goldschmidt
336 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
338 2011-08-24: Simon Goldschmidt
339 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
341 2011-08-22: Simon Goldschmidt
342 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
343 merely prevents nagle from not transmitting fast after closing.)
345 2011-07-22: Simon Goldschmidt
346 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
347 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
348 lwip_send() sends as much as possible for non-blocking sockets
350 2011-07-22: Simon Goldschmidt
351 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
352 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
353 at regular intervals from main level.
355 2011-07-21: Simon Goldschmidt
356 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
357 sending an ARP request when an ARP entry is used in the last minute before
360 2011-07-04: Simon Goldschmidt
361 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
363 2011-06-26: Simon Goldschmidt
364 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
365 updating its documentation only.
367 2011-06-26: Simon Goldschmidt
368 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
371 2011-06-26: Simon Goldschmidt
372 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
380 2011-03-27: Simon Goldschmidt
381 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
382 calculate it in tcp_zero_window_probe (the only place where it was used).
384 2010-11-21: Simon Goldschmidt
385 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
388 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
389 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
390 IP_MULTICAST_LOOP at socket- and raw-API level.
392 2010-06-16: Simon Goldschmidt
393 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
394 link-layer-addressed UDP traffic to be received while a netif is down (just
395 like DHCP during configuration)
397 2010-05-22: Simon Goldschmidt
398 * many many files: bug #27352: removed packing from ip_addr_t, the packed
399 version is now only used in protocol headers. Added global storage for
400 current src/dest IP address while in input functions.
402 2010-05-16: Simon Goldschmidt
403 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
404 calculation (and use them throughout the stack where applicable)
406 2010-05-16: Simon Goldschmidt
407 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
408 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
410 2010-05-16: Simon Goldschmidt
411 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
412 MEMP pool instead of the heap
414 2010-05-13: Simon Goldschmidt
415 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
416 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
417 packets to more than one pcb.
419 2010-05-02: Simon Goldschmidt
420 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
421 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
423 2010-04-30: Simon Goldschmidt
424 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
425 take a precalculated checksum, added pbuf_fill_chksum() to copy data
426 into a pbuf and at the same time calculating the checksum for that data
428 2010-04-29: Simon Goldschmidt
429 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
430 2-byte-aligned IP addresses and MAC addresses
432 2010-04-28: Patch by Bill Auerbach
433 * ip.c: Inline generating IP checksum to save a function call
435 2010-04-14: Simon Goldschmidt
436 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
437 tcpip_thread processes messages or timeouts to implement a watchdog.
439 2010-03-28: Simon Goldschmidt
440 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
441 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
443 2010-03-27: Simon Goldschmidt
444 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
445 etharp_query to prevent unnecessary function calls (inspired by
448 2010-03-20: Simon Goldschmidt
449 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
450 since the linker cannot do this automatically to save space.
452 2010-03-20: Simon Goldschmidt
453 * opt.h, etharp.c/.h: Added support for static ARP table entries
455 2010-03-14: Simon Goldschmidt
456 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
457 when creating TCP segments, not when (re-)transmitting them.
459 2010-03-07: Simon Goldschmidt
460 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
461 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
462 This should speed up receiving data on sockets as the select code in
463 event_callback is only executed when select is waiting.
465 2010-03-06: Simon Goldschmidt
466 * tcp_out.c: task #7013 (Create option to have all packets delivered to
467 netif->output in one piece): Always copy to try to create single pbufs
470 2010-03-06: Simon Goldschmidt
471 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
472 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
473 for tcp netconns to receive pbufs, not netbufs; use that function
476 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
477 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
478 Work on tcp_enqueue: Don't waste memory when chaining segments,
479 added option TCP_OVERSIZE to prevent creating many small pbufs when
480 calling tcp_write with many small blocks of data. Instead, pbufs are
481 allocated larger than needed and the space is used for later calls to
484 2010-02-21: Simon Goldschmidt
485 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
488 2010-02-21: Simon Goldschmidt
489 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
490 implementation of tcp to make API usage cleare to application programmers
492 2010-02-14: Simon Goldschmidt/Stephane Lesage
493 * ip_addr.h: Improved some defines working on ip addresses, added faster
494 macro to copy addresses that cannot be NULL
496 2010-02-13: Simon Goldschmidt
497 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
498 blocking send operation)
500 2010-02-12: Simon Goldschmidt
501 * sockets.c/.h: Added a minimal version of posix fctl() to have a
502 standardised way to set O_NONBLOCK for nonblocking sockets.
504 2010-02-12: Simon Goldschmidt
505 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
506 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
507 and dhcp work with user-allocated structs instead of callin mem_malloc
509 2010-02-12: Simon Goldschmidt/Jeff Barber
510 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
511 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
513 2010-02-12: Simon Goldschmidt
514 * sys layer: task #10139 (Prefer statically allocated memory): converted
515 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
516 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
517 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
518 to let sys.h use binary semaphores instead of mutexes - as before)
520 2010-02-09: Simon Goldschmidt (Simon Kallweit)
521 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
522 (Restart system timeout handling)
524 2010-02-09: Simon Goldschmidt
525 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
526 netif.c) - loopif does not have to be created by the port any more,
527 just define LWIP_HAVE_LOOPIF to 1.
529 2010-02-08: Simon Goldschmidt
530 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
531 inet_ntoa_r/ipaddr_ntoa_r
533 2010-02-08: Simon Goldschmidt
534 * netif.h: Added netif_s/get_igmp_mac_filter() macros
536 2010-02-05: Simon Goldschmidt
537 * netif.h: Added function-like macros to get/set the hostname on a netif
539 2010-02-04: Simon Goldschmidt
540 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
541 make changing the actual implementation behind the typedef easier.
543 2010-02-01: Simon Goldschmidt
544 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
545 for allocating memory when getaddrinfo() is called.
547 2010-01-31: Simon Goldschmidt
548 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
549 them once instead of parsing for every option. This also removes
550 the need for mem_malloc from dhcp_recv and makes it possible to
551 correctly retrieve the BOOTP file.
553 2010-01-30: simon Goldschmidt
554 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
557 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
558 * api.h, api_msg.c, sockets.c: Added except set support in select
561 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
562 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
563 Add non-blocking support for connect (partly from patch #6860),
564 plus many cleanups in socket & netconn API.
566 2010-01-27: Simon Goldschmidt
567 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
568 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
570 2010-01-26: Simon Goldschmidt
571 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
573 2010-01-14: Simon Goldschmidt
574 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
575 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
577 2010-01-13: Simon Goldschmidt
578 * mem.c: The heap now may be moved to user-defined memory by defining
579 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
580 (patch #6966 and bug #26133)
582 2010-01-10: Simon Goldschmidt (Bill Auerbach)
583 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
586 2010-01-10: Simon Goldschmidt
587 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
588 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
590 2009-12-31: Simon Goldschmidt
591 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
592 added timers.c/.h: Separated timer implementation from semaphore/mbox
593 implementation, moved timer implementation to timers.c/.h, timers are
594 now only called from tcpip_thread or by explicitly checking them.
597 2009-12-27: Simon Goldschmidt
598 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
599 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
604 2011-04-20: Simon Goldschmidt
605 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
607 2011-04-13: Simon Goldschmidt
608 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
609 using ports in the IANA private/dynamic range (49152 through 65535).
611 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
612 * etharp.h/.c: Fixed broken VLAN support.
614 2011-03-27: Simon Goldschmidt
615 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
616 pcbs) by checking if the pcb was bound (local_port != 0).
618 2011-03-27: Simon Goldschmidt
619 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
621 2011-03-27: Simon Goldschmidt
622 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
623 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
625 2011-03-27: Simon Goldschmidt
626 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
627 is present never times out) by starting retransmission timer before checking
630 2011-03-22: Simon Goldschmidt
631 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
632 calling sio_read_abort() if the file descriptor is valid.
634 2011-03-14: Simon Goldschmidt
635 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
636 more than once can render a socket useless) since it mainly involves changing
637 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
639 2011-03-13: Simon Goldschmidt
640 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
641 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
642 use EALRADY instead of -1
644 2011-03-13: Simon Goldschmidt
645 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
646 connection has been aborted by err_tcp (since this is not a normal closing
649 2011-03-13: Simon Goldschmidt
650 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
651 with pcb->state != CLOSED
653 2011-02-17: Simon Goldschmidt
654 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
657 2011-02-17: Simon Goldschmidt
658 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
660 2011-01-24: Simon Goldschmidt
661 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
663 2010-12-02: Simon Goldschmidt
664 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
666 2010-11-23: Simon Goldschmidt
667 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
668 LWIP_SO_RCVBUF and ioctl/FIONREAD.
670 2010-11-23: Simon Goldschmidt
671 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
672 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
674 2010-11-23: Simon Goldschmidt
675 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
676 refusing 'refused_data' again.
678 2010-11-22: Simon Goldschmidt
679 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
680 after a successful nonblocking connection.
682 2010-11-22: Simon Goldschmidt
683 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
684 must be sent link-local
686 2010-11-22: Simon Goldschmidt
687 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
690 2010-11-20: Simon Goldschmidt
691 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
693 2010-11-20: Simon Goldschmidt
694 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
695 resemble other stacks.
697 2010-11-20: Simon Goldschmidt
698 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
699 no-copy TCP writes will never succeed.
701 2010-11-20: Simon Goldschmidt
702 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
703 not match documentation: return ERR_ARG instead of ERR_VAL if not
704 initialized or wrong argument.
706 2010-10-20: Simon Goldschmidt
707 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
709 2010-10-05: Simon Goldschmidt
710 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
711 replugging the network cable after an AutoIP address was assigned.
713 2010-08-10: Simon Goldschmidt
714 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
716 2010-08-03: Simon Goldschmidt
717 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
719 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
720 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
721 endian architectures)
723 2010-07-28: Simon Goldschmidt
724 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
727 2010-07-27: Simon Goldschmidt
728 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
729 harm but never did anything
731 2010-07-21: Simon Goldschmidt
732 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
735 2010-07-16: Kieran Mansley
736 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
738 2010-07-10: Simon Goldschmidt
739 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
741 2010-06-30: Simon Goldschmidt
742 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
745 2010-06-28: Kieran Mansley
746 * timers.c remove unportable printing of C function pointers
748 2010-06-24: Simon Goldschmidt
749 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
750 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
752 2010-06-24: Simon Goldschmidt
753 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
754 implemented shutdown at socket level.
756 2010-06-21: Simon Goldschmidt
757 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
758 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
759 custom pbufs that reference other (original) pbufs. Additionally set
760 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
762 2010-06-15: Simon Goldschmidt
763 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
765 2010-06-14: Simon Goldschmidt
766 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
768 2010-06-12: Simon Goldschmidt
769 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
772 2010-05-17: Simon Goldschmidt
773 * netdb.c: Correctly NULL-terminate h_addr_list
775 2010-05-16: Simon Goldschmidt
776 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
777 "symbol already defined" i.e. when linking to winsock
779 2010-05-05: Simon Goldschmidt
780 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
783 2010-04-21: Simon Goldschmidt
784 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
787 2010-03-28: Luca Ceresoli
788 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
790 2010-03-27: Luca Ceresoli
791 * mib2.c: patch #7130: remove meaningless const qualifiers
793 2010-03-26: Simon Goldschmidt
794 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
796 2010-03-26: Simon Goldschmidt
797 * various files: Fixed compiling with different options disabled (TCP/UDP),
798 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
800 2010-03-25: Simon Goldschmidt
801 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
803 2010-03-25: Simon Goldschmidt
804 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
805 overrunning our rcv_wnd in ooseq case.
807 2010-03-22: Simon Goldschmidt
808 * tcp.c: tcp_listen() did not copy the pcb's prio.
810 2010-03-19: Simon Goldschmidt
811 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
813 2010-03-14: Simon Goldschmidt
814 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
815 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
816 and basing PBUF_LINK_HLEN on it.
818 2010-03-08: Simon Goldschmidt
819 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
820 when assiging routable address): when checking incoming packets and
821 aborting existing connection on address change, filter out link-local
824 2010-03-06: Simon Goldschmidt
825 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
827 2010-03-06: Simon Goldschmidt
828 * ipv4/ip.c: Don't try to forward link-local addresses
830 2010-03-06: Simon Goldschmidt
831 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
834 2010-03-05: Simon Goldschmidt
835 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
838 2010-03-05: Simon Goldschmidt
839 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
840 into multiple calls to tcp_write.
842 2010-02-21: Simon Goldschmidt
843 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
844 the implementation of DNS_USES_STATIC_BUF==1)
846 2010-02-20: Simon Goldschmidt
847 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
848 close() vs. shutdown(). Now the application does not get any more
849 recv callbacks after calling tcp_close(). Added tcp_shutdown().
851 2010-02-19: Simon Goldschmidt
852 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
853 confusion with realloc()
855 2010-02-15: Simon Goldschmidt/Stephane Lesage
856 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
859 2010-02-14: Simon Goldschmidt
860 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
861 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
862 admin-status of a netif are up
864 2010-02-14: Simon Goldschmidt
865 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
866 reception and is not really necessary
868 2010-02-14: Simon Goldschmidt
869 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
870 request was directed as us (RFC 826, Packet Reception), otherwise
871 only update existing entries; internalized some functions
873 2010-02-14: Simon Goldschmidt
874 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
875 disabled on netif used for PPPoE) by adding a new netif flag
876 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
877 device but prevents usage of ARP (so that ethernet_input can be used
880 2010-02-12: Simon Goldschmidt
881 * netif.c: netif_set_link_up/down: only do something if the link state
884 2010-02-12: Simon Goldschmidt/Stephane Lesage
885 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
888 2010-02-12: Simon Goldschmidt
889 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
891 2010-02-09: Simon Goldschmidt
892 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
893 (recv() makes receive window update for data that wasn't received by
896 2010-02-09: Simon Goldschmidt/Stephane Lesage
897 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
898 or any netconn_recv() error)
900 2010-02-09: Simon Goldschmidt
901 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
903 2010-02-09: Simon Goldschmidt
904 * netif.c: For loopback packets, adjust the stats- and snmp-counters
905 for the loopback netif.
907 2010-02-08: Simon Goldschmidt
908 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
909 since they are not used anywhere else.
911 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
912 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
913 (patch from bug #28798)
915 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
916 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
917 another bug when LWIP_RAND() returns zero.
919 2010-02-04: Simon Goldschmidt
920 * nearly every file: Use macros defined in ip_addr.h (some of them new)
921 to work with IP addresses (preparation for bug #27352 - Change ip_addr
922 from struct to typedef (u32_t) - and better code).
924 2010-01-31: Simon Goldschmidt
925 * netif.c: Don't call the link-callback from netif_set_up/down() since
926 this invalidly retriggers DHCP.
928 2010-01-29: Simon Goldschmidt
929 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
930 portability file inet.h and its contents from the stack: moved htonX-
931 functions to def.h (and the new def.c - they are not ipv4 dependent),
932 let inet.h depend on ip_addr.h and not the other way round.
933 This fixes bug #28732.
935 2010-01-28: Kieran Mansley
936 * tcp.c: Ensure ssthresh >= 2*MSS
938 2010-01-27: Simon Goldschmidt
939 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
940 callback can lead to accessing unallocated memory. As a consequence,
941 ERR_ABRT means the application has called tcp_abort()!
943 2010-01-25: Simon Goldschmidt
944 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
945 not implemented in SNMP): write-only or not-accessible are still
946 returned by getnext (though not by get)
948 2010-01-24: Simon Goldschmidt
949 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
950 not use reserved C/C++ keywords
952 2010-01-23: Simon Goldschmidt
953 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
956 2010-01-21: Simon Goldschmidt
957 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
958 if tcp_enqueue fails) both in raw- and netconn-API
960 2010-01-19: Simon Goldschmidt
961 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
963 2010-01-18: Iordan Neshev/Simon Goldschmidt
964 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
965 bugfix backports from 2.4.x.
967 2010-01-18: Simon Goldschmidt
968 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
970 2010-01-17: Simon Goldschmidt
971 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
972 task #10102: "netconn: clean up conn->err threading issues" by adding
973 error return value to struct api_msg_msg
975 2010-01-17: Simon Goldschmidt
976 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
977 to return err_t (bugs #27709 and #28087)
979 2010-01-14: Simon Goldschmidt
980 * ...: Use typedef for function prototypes throughout the stack.
982 2010-01-13: Simon Goldschmidt
983 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
984 window = 0) by correctly draining recvmbox/acceptmbox
986 2010-01-11: Simon Goldschmidt
987 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
988 erroneous callbacks) by copying the code from recent pppd
990 2010-01-10: Simon Goldschmidt
991 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
993 2010-01-10: Simon Goldschmidt
994 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
996 2010-01-08: Simon Goldschmidt
997 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
999 2010-01-08: Simon Goldschmidt
1000 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
1001 passed to dns_local_addhost() might be volatile
1003 2010-01-07: Simon Goldschmidt
1004 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
1006 2010-01-06: Simon Goldschmidt
1007 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
1009 2009-12-31: Simon Goldschmidt
1010 * many ppp files: Reorganised PPP source code from ucip structure to pppd
1011 structure to easily compare our code against the pppd code (around v2.3.1)
1013 2009-12-27: Simon Goldschmidt
1014 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
1022 2009-10-27 Simon Goldschmidt/Stephan Lesage
1023 * netifapi.c/.h: Added netifapi_netif_set_addr()
1025 2009-10-07 Simon Goldschmidt/Fabian Koch
1026 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
1027 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
1029 2009-08-26 Simon Goldschmidt/Simon Kallweit
1030 * slipif.c/.h: bug #26397: SLIP polling support
1032 2009-08-25 Simon Goldschmidt
1033 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
1034 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
1036 2009-08-25 Simon Goldschmidt
1037 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
1039 2009-08-24 Jakob Stoklund Olesen
1040 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
1041 to netif_set_link_up().
1043 2009-08-23 Simon Goldschmidt
1044 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
1045 to a human-readable string.
1049 2009-12-24: Kieran Mansley
1050 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
1053 2009-12-06: Simon Goldschmidt
1054 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
1055 be statically allocated (like in ucip)
1057 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
1058 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
1060 2009-12-03: Simon Goldschmidt
1061 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
1062 could have non-zero length
1064 2009-12-02: Simon Goldschmidt
1065 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
1066 tcp_input_pcb until after calling the pcb's callbacks
1068 2009-11-29: Simon Goldschmidt
1069 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
1070 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
1072 2009-11-29: Simon Goldschmidt
1073 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1074 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1076 2009-11-26: Simon Goldschmidt
1077 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1080 2009-11-26: Simon Goldschmidt
1081 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1082 algorithm at PCB level
1084 2009-11-22: Simon Goldschmidt
1085 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1087 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1088 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1089 reusing time-wait pcb
1091 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1092 * sockets.c: Fixed bug #28062: Data received directly after accepting
1093 does not wake up select
1095 2009-11-11: Simon Goldschmidt
1096 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1098 2009-10-30: Simon Goldschmidt
1099 * opt.h: Increased default value for TCP_MSS to 536, updated default
1100 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1102 2009-10-28: Kieran Mansley
1103 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1104 to follow algorithm from TCP/IP Illustrated
1106 2009-10-27: Kieran Mansley
1107 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1109 2009-10-25: Simon Goldschmidt
1110 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1111 pcb->recv is NULL to keep rcv_wnd correct)
1113 2009-10-25: Simon Goldschmidt
1114 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1116 2009-10-23: Simon Goldschmidt (David Empson)
1117 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1119 2009-10-21: Simon Goldschmidt
1120 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1121 trailing 1 byte len (SYN/FIN)
1123 2009-10-21: Simon Goldschmidt
1124 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1126 2009-10-19: Simon Goldschmidt
1127 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1128 conditional code to assert where applicable), check pbuf length before
1129 testing for valid reply
1131 2009-10-19: Simon Goldschmidt
1132 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1133 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1135 2009-10-16: Simon Goldschmidt
1136 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1137 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1140 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1141 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1143 2009-10-15: Simon Goldschmidt
1144 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1147 2009-10-15: Simon Goldschmidt
1148 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1149 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1150 of network byte order
1152 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1153 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1154 which are not consecutive when retransmitting unacked segments
1156 2009-10-09 Simon Goldschmidt
1157 * opt.h: Fixed default values of some stats to only be enabled if used
1158 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1160 2009-08-30 Simon Goldschmidt
1161 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1162 function" by checking for loopback before calling ip_frag
1164 2009-08-25 Simon Goldschmidt
1165 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1167 2009-08-23 Simon Goldschmidt
1168 * ppp.c: bug #27078: Possible memory leak in pppInit()
1170 2009-08-23 Simon Goldschmidt
1171 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1174 2009-08-23 Simon Goldschmidt
1175 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1176 Fixed wrong parenthesis, added check in init.c
1178 2009-08-23 Simon Goldschmidt
1179 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1181 2009-08-23 Simon Goldschmidt
1182 * many ppp files: bug #27267: Added include to string.h where needed
1184 2009-08-23 Simon Goldschmidt
1185 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1192 2009-05-10 Simon Goldschmidt
1193 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1194 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1195 one pbuf to help MACs that don't support scatter-gather DMA.
1197 2009-05-09 Simon Goldschmidt
1198 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1199 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1201 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1202 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1203 extended info about the currently received packet.
1205 2009-04-27 Simon Goldschmidt
1206 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1208 2009-04-25 Simon Goldschmidt
1209 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1210 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1212 2009-04-21 Simon Goldschmidt
1213 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1214 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1215 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1216 as an external function for lookup.
1218 2009-04-15 Simon Goldschmidt
1219 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1221 2009-03-31 Kieran Mansley
1222 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1223 TCP timestamp options, off by default. Rework tcp_enqueue() to
1224 take option flags rather than specified option data
1226 2009-02-18 Simon Goldschmidt
1227 * cc.h: Added printf formatter for size_t: SZT_F
1229 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1230 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1233 2009-02-12 Simon Goldschmidt
1234 * init.h: Added LWIP_VERSION to get the current version of the stack
1236 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1237 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1238 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1241 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1242 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1243 is only used by UDPLITE at present, so conditionalise it.
1245 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1246 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1247 "seed" address. This should reduce AUTOIP conflicts if
1248 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1250 2008-10-02 Jonathan Larmour and Rishi Khan
1251 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1254 2008-06-30 Simon Goldschmidt
1255 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1256 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1257 mem_free to run between mem_malloc iterations. Added illegal counter for
1260 2008-06-27 Simon Goldschmidt
1261 * stats.h/.c, some other files: patch #6483: stats module improvement:
1262 Added defines to display each module's statistic individually, added stats
1263 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1265 2008-06-17 Simon Goldschmidt
1266 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1267 (define LWIP_ERR_T in cc.h)
1269 2008-06-17 Simon Goldschmidt
1270 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1273 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1274 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1275 modified version of patch # 6370: Moved loopif code to netif.c so that
1276 loopback traffic is supported on all netifs (all local IPs).
1277 Added option to limit loopback packets for each netifs.
1281 2009-08-12 Kieran Mansley
1282 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1283 out of window or out of order properly
1285 2009-08-12 Kieran Mansley
1286 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1288 2009-07-28 Simon Goldschmidt
1289 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1291 2009-07-27 Kieran Mansley
1292 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1294 2009-07-09 Kieran Mansley
1295 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1296 recv_avail and don't increment counters until message successfully
1299 2009-06-25 Kieran Mansley
1300 * api_msg.c api.h: BUG26722: initialise netconn write variables
1303 2009-06-25 Kieran Mansley
1304 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1306 2009-06-25 Kieran Mansley
1307 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1308 simultaneous close behaviour, and make snd_nxt have the same meaning
1311 2009-05-12 Simon Goldschmidt
1312 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1313 arp_table / uses etharp_query" by adding etharp_gratuitous()
1315 2009-05-12 Simon Goldschmidt
1316 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1317 to the IP header (used by igmp_ip_output_if)
1319 2009-05-06 Simon Goldschmidt
1320 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1321 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1323 2009-05-05 Simon Goldschmidt
1324 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1327 2009-05-04 Simon Goldschmidt
1328 * init.c: snmp was not initialized in lwip_init()
1330 2009-05-04 Frédéric Bernon
1331 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1333 2009-05-03 Simon Goldschmidt
1334 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1335 (and unsent->next == NULL)
1337 2009-05-02 Simon Goldschmidt
1338 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1339 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1341 2009-05-02 Simon Goldschmidt
1342 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1344 2009-05-01 Simon Goldschmidt
1345 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1347 2009-05-01 Simon Goldschmidt
1348 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1350 2009-04-29 Frédéric Bernon
1351 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1352 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1353 of broadcast packets even when this option wasn't set. Port maintainers
1354 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1355 If you want this option also filter broadcast on recv operations, you also
1356 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1358 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1359 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1360 DHCP/AUTOIP cooperation
1362 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1363 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1364 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1365 right place in tcp_output and tcp_rexmit).
1367 2009-04-25 Simon Goldschmidt
1368 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1369 when debugging": memp_sizes contained the wrong sizes (including sanity
1370 regions); memp pools for MEM_USE_POOLS were too small
1372 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1373 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1374 behavior, with with ip address string not ended by a '\0', a space or a
1377 2009-04-19 Simon Goldschmidt
1378 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1379 pcb->err is called, not pcb->connected (with an error code).
1381 2009-04-19 Simon Goldschmidt
1382 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1383 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1385 2009-04-19 Simon Goldschmidt
1386 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1387 in the header pbuf, not the data pbuf)
1389 2009-04-18 Simon Goldschmidt
1390 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1392 2009-04-15 Simon Goldschmidt
1393 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1395 2009-04-15 Simon Goldschmidt
1396 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1398 2009-04-15 Simon Goldschmidt
1399 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1400 ip_hinted_output() (for smaller code mainly)
1402 2009-04-15 Simon Goldschmidt
1403 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1405 2009-04-15 Simon Goldschmidt
1406 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1407 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1408 is big enough in dhcp_start
1410 2009-04-15 Simon Goldschmidt
1411 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1413 2009-04-15 Simon Goldschmidt
1414 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1416 2009-04-15 Simon Goldschmidt
1417 * sockets.c: bug #26121: set_errno can be overridden
1419 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1420 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1423 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1424 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1427 2009-03-31 Kieran Mansley
1428 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1429 updates are calculated and sent (BUG20515)
1431 * tcp_in.c: cope with SYN packets received during established states,
1432 and retransmission of initial SYN.
1434 * tcp_out.c: set push bit correctly when tcp segments are merged
1436 2009-03-27 Kieran Mansley
1437 * tcp_out.c set window correctly on probes (correcting change made
1440 2009-03-26 Kieran Mansley
1441 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1442 connections where no reset required (bug #25622)
1444 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1447 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1448 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1449 too small depending on MEM_ALIGNMENT
1451 2009-02-16 Simon Goldschmidt
1452 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1453 converted size argument of netconn_write to 'size_t'
1455 2009-02-16 Simon Goldschmidt
1456 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1457 by moving accept callback function pointer to TCP_PCB_COMMON
1459 2009-02-12 Simon Goldschmidt
1460 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1463 2009-02-11 Simon Goldschmidt
1464 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1466 2009-02-11 Simon Goldschmidt
1467 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1468 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1470 2009-02-10 Simon Goldschmidt
1471 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1472 Accepts_pending is decrease on a corresponding listen pcb when a connection
1473 in state SYN_RCVD is close.
1475 2009-01-28 Jonathan Larmour
1476 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1479 2008-12-19 Simon Goldschmidt
1480 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1482 2008-12-10 Tamas Somogyi, Frédéric Bernon
1483 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1484 port uses deleted netbuf.
1486 2008-10-18 Simon Goldschmidt
1487 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1490 2008-10-15 Simon Goldschmidt
1491 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1492 by packing the struct ip_reass_helper.
1494 2008-10-03 David Woodhouse, Jonathan Larmour
1495 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1497 2008-10-02 Jonathan Larmour
1498 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1499 padding is included.
1501 2008-09-30 Jonathan Larmour
1502 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1503 assertion check that addrlen isn't NULL.
1505 2008-09-30 Jonathan Larmour
1506 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1508 2008-08-26 Simon Goldschmidt
1509 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1510 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1512 2008-08-14 Simon Goldschmidt
1513 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1514 tcp_close returns != ERR_OK)
1516 2008-07-08 Frédéric Bernon
1517 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1518 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1520 2008-06-24 Jonathan Larmour
1521 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1522 if tcp_seg_copy fails.
1524 2008-06-17 Simon Goldschmidt
1525 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1526 and created defines for swapping bytes and folding u32 to u16.
1528 2008-05-30 Kieran Mansley
1529 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1530 rather than rcv_ann_wnd when deciding if packets are in-window.
1531 Contributed by <arasmussen@consultant.datasys.swri.edu>
1533 2008-05-30 Kieran Mansley
1534 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1535 passing as function pointers when MEM_LIBC_MALLOC is defined.
1537 2008-05-09 Jonathan Larmour
1538 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1539 stop it being treated as a fatal error.
1541 2008-04-15 Simon Goldschmidt
1542 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1545 2008-03-27 Simon Goldschmidt
1546 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1547 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1548 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1549 or heap memory from interrupt context
1551 2008-03-26 Simon Goldschmidt
1552 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1553 host sent a zero mss as TCP option.
1560 2008-03-10 Jonathan Larmour
1561 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1562 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1564 2008-01-22 Frédéric Bernon
1565 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1566 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1568 2008-01-14 Frédéric Bernon
1569 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1570 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1571 tcp_recv callback (see rawapi.txt).
1573 2008-01-14 Frédéric Bernon, Marc Chaland
1574 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1576 2008-01-12 Frédéric Bernon
1577 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1578 netconn::sem per netconn::op_completed like suggested for the task #7490
1579 "Add return value to sys_mbox_post".
1581 2008-01-12 Frédéric Bernon
1582 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1583 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1584 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1586 2008-01-10 Frédéric Bernon
1587 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1588 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1589 "blocking" ("block" parameter = 1).
1591 2008-01-10 Frédéric Bernon
1592 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1593 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1594 "Add return value to sys_mbox_post".
1596 2008-01-05 Frédéric Bernon
1597 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1598 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1599 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1600 indicate the number of pointers query by the mailbox. There is three defines
1601 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1602 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1603 parameter in your implementation, but to ignore it to keep the previous behavior.
1604 The new sys_mbox_trypost function return a value to know if the mailbox is
1605 full or if the message is posted. Take a look to sys_arch.txt for more details.
1606 This new function is used in tcpip_input (so, can be called in an interrupt
1607 context since the function is not blocking), and in recv_udp and recv_raw.
1609 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1610 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1611 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1612 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1613 documentation in the rawapi.txt file.
1615 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1616 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1618 2007-12-31 Frédéric Bernon, Luca Ceresoli
1619 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1620 in autoip". The change in etharp_raw could be removed, since all calls to
1621 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1622 wrong in the future.
1624 2007-12-30 Frédéric Bernon, Tom Evans
1625 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1626 Filtering" reported by Tom Evans.
1628 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1629 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1630 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1631 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1632 keep accepting new connections.
1634 2007-12-13 Frédéric Bernon
1635 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1636 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1638 2007-12-12 Frédéric Bernon
1639 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1640 are the one which have ram usage.
1642 2007-12-05 Frédéric Bernon
1643 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1644 set of variables (=0) or a local one (=1). In this last case, your port should
1645 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1646 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1648 2007-12-03 Simon Goldschmidt
1649 * ip.c: ip_input: check if a packet is for inp first before checking all other
1650 netifs on netif_list (speeds up packet receiving in most cases)
1652 2007-11-30 Simon Goldschmidt
1653 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1654 UDP: move a (connected) pcb selected for input to the front of the list of
1655 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1658 2007-11-28 Simon Goldschmidt
1659 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1661 2007-11-25 Simon Goldschmidt
1662 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1665 2007-11-24 Simon Goldschmidt
1666 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1667 to the new file netdb.c; included lwip_getaddrinfo.
1669 2007-11-21 Simon Goldschmidt
1670 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1671 based on the MTU of the netif used to send. Enabled by default. Disable by
1672 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1674 2007-11-19 Frédéric Bernon
1675 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1676 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1677 copy dns payload to parse the response), return an error if there is no place
1678 for a new query, and fix some minor problems.
1680 2007-11-16 Simon Goldschmidt
1681 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1682 removed files: core/inet.c, core/inet6.c
1683 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1684 inet and chksum part; changed includes in all lwIP files as appropriate
1686 2007-11-16 Simon Goldschmidt
1687 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1688 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1689 (gethostbyname/gethostbyname_r).
1691 2007-11-15 Jim Pettinato, Frédéric Bernon
1692 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1693 requests with RAW api interface. Initialization is done in lwip_init() with
1694 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1695 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1696 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1697 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1698 list with points to improve.
1700 2007-11-06 Simon Goldschmidt
1701 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1702 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1703 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1705 2007-11-06 Simon Goldschmidt
1706 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1707 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1708 implementation from netconn api applications.
1710 2007-11-03 Frédéric Bernon
1711 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1712 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1713 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1714 it. This is a first release which have to be improve for TCP. Note it used the
1715 netconn::recv_avail which need to be more "thread-safe" (note there is already
1716 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1718 2007-11-01 Frédéric Bernon, Marc Chaland
1719 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1720 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1721 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1722 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1723 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1725 2007-10-24 Frédéric Bernon
1726 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1727 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1728 some code (like we have talk in "patch #5919 : Create compile switch to remove
1729 select code"), but it could be done later.
1731 2007-10-08 Simon Goldschmidt
1732 * many files: Changed initialization: many init functions are not needed any
1733 more since we now rely on the compiler initializing global and static
1736 2007-10-06 Simon Goldschmidt
1737 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1738 to enqueue the received pbufs so that multiple packets can be reassembled
1739 simultaneously and no static reassembly buffer is needed.
1741 2007-10-05 Simon Goldschmidt
1742 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1743 all netifs (or ports) can use it.
1745 2007-10-05 Frédéric Bernon
1746 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1747 common function to reduce a little bit the footprint (for all functions using
1748 only the "netif" parameter).
1750 2007-10-03 Frédéric Bernon
1751 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1752 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1753 a little bit the footprint (for all functions using only the "netif" parameter).
1755 2007-09-15 Frédéric Bernon
1756 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1757 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1758 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1759 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1761 2007-09-10 Frédéric Bernon
1762 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1763 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1764 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1765 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1766 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1767 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1768 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1769 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1770 when it's queried (any direct call to "sysuptime" is changed by a call to
1771 snmp_get_sysuptime).
1773 2007-09-09 Frédéric Bernon, Bill Florac
1774 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1775 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1776 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1777 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1778 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1779 the next query message to receive the matching multicast streams).
1781 2007-09-08 Frédéric Bernon
1782 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1783 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1784 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1785 Enable to access to these fields with LWIP_TCP=0.
1787 2007-09-05 Frédéric Bernon
1788 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1789 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1790 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1791 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1792 help to reduce footprint, and to reduce "visibility" on the Internet.
1794 2007-09-05 Frédéric Bernon, Bill Florac
1795 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1796 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1797 parameters have to be provided: a task name, and a task stack size. For this
1798 one, since it's platform dependant, you could define the best one for you in
1799 your lwipopts.h. For port maintainers, you can just add these new parameters
1800 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1803 2007-09-05 Frédéric Bernon
1804 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1805 inside init.c for task #7142 "Sanity check user-configurable values".
1807 2007-09-04 Frédéric Bernon, Bill Florac
1808 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1809 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1810 value). It will avoid potential fragmentation problems, use a counter to know
1811 how many times a group is used on an netif, and free it when all applications
1812 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1813 check if LWIP_IGMP!=0).
1815 2007-09-03 Frédéric Bernon
1816 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1817 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1818 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1819 and/or the "interface" field (for netconn layer), for join/leave operations.
1820 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1821 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1823 2007-08-30 Frédéric Bernon
1824 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1825 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1826 with other API (application based on raw API, or future "socket2" API). Ports
1827 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1829 2007-08-30 Frédéric Bernon, Jonathan Larmour
1830 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1831 user-configurable values".
1833 2007-08-29 Frédéric Bernon
1834 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1835 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1836 spirit than the others modules. Modify some IGMP debug traces.
1838 2007-08-29 Frédéric Bernon
1839 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1840 Add lwip_init function to regroup all modules initializations, and to provide
1841 a place to add code for task #7142 "Sanity check user-configurable values".
1842 Ports maintainers should remove direct initializations calls from their code,
1843 and add init.c in their makefiles. Note that lwip_init() function is called
1844 inside tcpip_init, but can also be used by raw api users since all calls are
1845 disabled when matching options are disabled. Also note that their is new options
1846 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1848 2007-08-26 Marc Boucher
1849 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1850 since they can under certain circumstances be called with an invalid conn
1851 pointer after the connection has been closed (and conn has been freed).
1853 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1854 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1855 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1857 2007-08-22 Frédéric Bernon
1858 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1859 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1861 2007-08-22 Frédéric Bernon
1862 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1863 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1864 name is tcpip_input (we keep the name of 1.2.0 function).
1866 2007-08-17 Jared Grubb
1867 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1868 settings into new memp_std.h and optional user file lwippools.h. This adds
1869 more dynamic mempools, and allows the user to create an arbitrary number of
1870 mempools for mem_malloc.
1872 2007-08-16 Marc Boucher
1873 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1874 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1875 close the connection.
1877 2007-08-16 Marc Boucher
1878 * sockets.c: lwip_accept(): check netconn_peer() error return.
1880 2007-08-16 Marc Boucher
1881 * mem.c, mem.h: Added mem_calloc().
1883 2007-08-16 Marc Boucher
1884 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1885 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1886 and starving other message types.
1887 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1889 2007-08-16 Marc Boucher
1890 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1891 type and flgs (later renamed to flags).
1892 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1893 Improved lwip_recvfrom(). TCP push now propagated.
1895 2007-08-16 Marc Boucher
1896 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1899 2007-08-16 Marc Boucher
1900 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1901 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1902 Added PPPoE support and various PPP improvements.
1904 2007-07-25 Simon Goldschmidt
1905 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1906 making netbuf_copy_partial use this function.
1908 2007-07-25 Simon Goldschmidt
1909 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1910 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1913 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1914 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1915 a link callback in the netif struct, and functions to handle it. Be carefull
1916 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1917 if you want to be sure to be compatible with future changes...
1919 2007-06-30 Frédéric Bernon
1920 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1922 2007-06-21 Simon Goldschmidt
1923 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1924 LWIP_AUTOIP =0 and =1 to remove redundant code.
1926 2007-06-21 Simon Goldschmidt
1927 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1928 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1929 heap. This both prevents memory fragmentation and gives a higher speed
1930 at the cost of more memory consumption. Turned off by default.
1932 2007-06-21 Simon Goldschmidt
1933 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1934 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1935 int to be able to send a bigger buffer than 64K with one time (mainly
1936 used from lwip_send).
1938 2007-06-21 Simon Goldschmidt
1939 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1940 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1942 2007-06-21 Simon Goldschmidt
1943 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1944 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1945 changes on low memory or empty send-buffer.
1947 2007-06-18 Simon Goldschmidt
1948 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1949 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1950 used for ethernet and struct eth_addr already had a defined length of 6).
1952 2007-06-17 Simon Goldschmidt
1953 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1954 to disable UDP checksum generation on transmit.
1956 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1957 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1958 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1959 this macro to check "conn" parameter in api_msg.c functions.
1961 2007-06-11 Simon Goldschmidt
1962 * sockets.c, sockets.h: Added UDP lite support for sockets
1964 2007-06-10 Simon Goldschmidt
1965 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1966 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1969 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1970 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1971 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1972 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1973 (see TODO mark in the source code).
1975 2007-06-09 Simon Goldschmidt
1976 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1977 etharp_output() to match netif->output so etharp_output() can be used
1978 directly as netif->output to save one function call.
1980 2007-06-08 Simon Goldschmidt
1981 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1982 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1983 added initialization of those to ethernetif, slipif and loopif.
1985 2007-05-18 Simon Goldschmidt
1986 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1987 (defaulting to off for now) that can be set to 0 to send fragmented
1988 packets by passing PBUF_REFs down the stack.
1990 2007-05-23 Frédéric Bernon
1991 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1992 connections, such present in patch #5959.
1994 2007-05-23 Frédéric Bernon
1995 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1996 code in only one part...
1998 2007-05-18 Simon Goldschmidt
1999 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
2000 elements to overflow. This is achieved by adding some bytes before and after
2001 each pool element (increasing their size, of course), filling them with a
2002 prominent value and checking them on freeing the element.
2003 Set it to 2 to also check every element in every pool each time memp_malloc()
2004 or memp_free() is called (slower but more helpful).
2006 2007-05-10 Simon Goldschmidt
2007 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
2008 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
2011 2007-05-11 Frédéric Bernon
2012 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
2013 Include a function pointer instead of a table index in the message to reduce
2014 footprint. Disable some part of lwip_send and lwip_sendto if some options are
2015 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
2017 2007-05-10 Simon Goldschmidt
2018 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
2019 \ extern "C" {' in all header files. Now you can write your application using
2020 the lwIP stack in C++ and simply #include the core files. Note I have left
2021 out the netif/ppp/*h header files for now, since I don't know which files are
2022 included by applications and which are for internal use only.
2024 2007-05-09 Simon Goldschmidt
2025 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
2026 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
2027 situations where some compilers might inline the copy and save a function
2028 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
2030 2007-05-08 Simon Goldschmidt
2031 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
2032 to be overriden in case the C-library malloc implementation is not protected
2033 against concurrent access.
2035 2007-05-04 Simon Goldschmidt (Atte Kojo)
2036 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
2037 multiple packets to the same host.
2039 2007-05-04 Frédéric Bernon, Jonathan Larmour
2040 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
2041 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
2042 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
2043 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
2044 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
2045 these fields are now renamed "addr" & "port".
2047 2007-04-11 Jonathan Larmour
2048 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
2049 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
2050 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
2051 by the port in sys_arch.h if desired.
2053 2007-04-06 Frédéric Bernon, Simon Goldschmidt
2054 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
2055 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
2056 clients, using new functions from netifapi.h. Disable as default (no port change to do).
2058 2007-04-05 Frédéric Bernon
2059 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
2061 2007-04-04 Simon Goldschmidt
2062 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
2063 use this for and architecture-independent form to tell the compiler you intentionally
2064 are not using this variable. Can be overriden in cc.h.
2066 2007-03-28 Frédéric Bernon
2067 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
2068 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
2069 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
2070 It will be used by DHCP to register a client hostname, but can also be use when you call
2073 2007-03-28 Frédéric Bernon
2074 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2075 initialize a network interface's flag with. It tell this interface is an ethernet
2076 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2077 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2079 2007-03-26 Frédéric Bernon, Jonathan Larmour
2080 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2081 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2082 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2083 is done in tcpip_init function.
2085 2007-03-22 Frédéric Bernon
2086 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2087 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2088 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2089 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2090 but never used. Fix msg_in.c with the correct #if test for a stat display.
2092 2007-03-21 Kieran Mansley
2093 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2094 Provides callback on netif up/down state change.
2096 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2097 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2098 ip.c, netif.h, tcpip.c, opt.h:
2099 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2100 filter per all network interfaces. Declare a new function in netif to enable to
2101 control the MAC filter (to reduce lwIP traffic processing).
2103 2007-03-11 Frédéric Bernon
2104 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2105 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2106 unless you know what you're doing (default are RFC1122 compliant). Note
2107 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2109 2007-03-08 Frédéric Bernon
2110 * tcp.h: Keepalive values can be configured at compile time, but don't change
2111 this unless you know what you're doing (default are RFC1122 compliant).
2113 2007-03-08 Frédéric Bernon
2114 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2115 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2116 on UDP sockets/netconn.
2118 2007-03-08 Simon Goldschmidt
2119 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2121 2007-03-06 Frédéric Bernon
2122 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2123 Implement SO_RCVTIMEO on UDP sockets/netconn.
2125 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2126 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2127 on the stack and remove the API msg type from memp
2129 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2130 * sockets.h, sockets.c: Move socket initialization to new
2131 lwip_socket_init() function.
2132 NOTE: this changes the API with ports. Ports will have to be
2133 updated to call lwip_socket_init() now.
2135 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2136 * api_lib.c: Use memcpy in netbuf_copy_partial.
2141 2008-03-17 Frédéric Bernon, Ed Kerekes
2142 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2143 some problems to fill the IP header on some targets, use now the
2144 ip.h macros to do it).
2146 2008-03-13 Frédéric Bernon
2147 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2148 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2149 TCP connection caused a crash. Note that using (lwip_)recvfrom
2150 like this is a bit slow and that using (lwip)getpeername is the
2151 good lwip way to do it (so, using recv is faster on tcp sockets).
2153 2008-03-12 Frédéric Bernon, Jonathan Larmour
2154 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2155 recv_raw() does not consume data", and the ping sample (with
2156 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2157 returned the IP payload, without the IP header).
2159 2008-03-04 Jonathan Larmour
2160 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2161 and/or warnings on some systems where mem_size_t and size_t differ.
2162 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2164 2008-03-04 Kieran Mansley (contributions by others)
2165 * Numerous small compiler error/warning fixes from contributions to
2166 mailing list after 1.3.0 release candidate made.
2168 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2169 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2171 2008-01-15 Kieran Mansley
2172 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2173 prevented from sending by a small send window, not just a zero
2176 2008-01-09 Jonathan Larmour
2177 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2178 conflict with Linux system headers.
2180 2008-01-06 Jonathan Larmour
2181 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2182 address entirely on receiving a DHCPNAK, and restarting discovery.
2184 2007-12-21 Simon Goldschmidt
2185 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2186 is not protected" by using new macros for interlocked access to modify/test
2187 netconn->recv_avail.
2189 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2190 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2192 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2193 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2194 of silly window avoidance and prevent lwIP from shrinking the window)
2196 2007-12-04 Simon Goldschmidt
2197 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2198 data packet was lost): add assert that all segment lists are empty in
2199 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2200 state from LAST_ACK in tcp_process
2202 2007-12-02 Simon Goldschmidt
2203 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2204 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2205 has to be set to 0 in lwipopts.h
2207 2007-12-02 Simon Goldschmidt
2208 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2209 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2210 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2211 This is a fix for thread-safety and allocates all items needed for a netconn
2212 when the netconn is created.
2214 2007-11-30 Simon Goldschmidt
2215 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2216 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2217 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2218 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2220 2007-11-27 Simon Goldschmidt
2221 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2222 letting ip_route only use netifs that are up.
2224 2007-11-27 Simon Goldschmidt
2225 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2226 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2227 sockets block most operations once they have seen a fatal error.
2229 2007-11-27 Simon Goldschmidt
2230 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2231 netif to send as an argument (to be able to send on netifs that are down).
2233 2007-11-26 Simon Goldschmidt
2234 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2237 2007-11-21 Simon Goldschmidt
2238 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2239 Fixed the nagle algorithm; nagle now also works for all raw API applications
2240 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2242 2007-11-12 Frédéric Bernon
2243 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2244 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2245 context in do_getaddr.
2247 2007-11-10 Simon Goldschmidt
2248 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2249 happen any time). Now the packet simply isn't enqueued when out of memory.
2251 2007-11-01 Simon Goldschmidt
2252 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2253 TCP_MSS if that is smaller) as long as no MSS option is received from the
2256 2007-11-01 Simon Goldschmidt
2257 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2258 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2259 sending our configured TCP_MSS instead of the one received).
2261 2007-11-01 Simon Goldschmidt
2262 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2263 calculated based on the configured TCP_MSS, not on the MSS option received
2266 2007-10-09 Simon Goldschmidt
2267 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2268 short and also was generated wrong if checksum coverage != tot_len;
2269 receive: checksum was calculated wrong if checksum coverage != tot_len
2271 2007-10-08 Simon Goldschmidt
2272 * mem.c: lfree was not updated in mem_realloc!
2274 2007-10-07 Frédéric Bernon
2275 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2276 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2277 this change cause an API breakage for netconn_addr, since a parameter
2278 type change. Any compiler should cause an error without any changes in
2279 yours netconn_peer calls (so, it can't be a "silent change"). It also
2280 reduce a little bit the footprint for socket layer (lwip_getpeername &
2281 lwip_getsockname use now a common lwip_getaddrname function since
2282 netconn_peer & netconn_addr have the same parameters).
2284 2007-09-20 Simon Goldschmidt
2285 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2286 by checking tcp_tw_pcbs also
2288 2007-09-19 Simon Goldschmidt
2289 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2291 2007-09-15 Mike Kleshov
2292 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2294 2007-09-06 Frédéric Bernon
2295 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2296 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2297 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2298 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2300 2007-08-30 Frédéric Bernon
2301 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2302 and fix some coding style.
2304 2007-08-28 Frédéric Bernon
2305 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2306 kind of packets. These packets are considered like Ethernet packets (payload
2307 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2308 are considered like IP packets (payload pointing to iphdr).
2310 2007-08-27 Frédéric Bernon
2311 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2312 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2313 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2315 2007-08-24 Kieran Mansley
2316 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2317 compiler (Paradigm C++)
2319 2007-08-09 Frédéric Bernon, Bill Florac
2320 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2321 Introduce IGMP_STATS to centralize statistics management.
2323 2007-08-09 Frédéric Bernon, Bill Florac
2324 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2325 packet on a udp pcb binded on an netif's IP address, and not on "any".
2327 2007-08-09 Frédéric Bernon, Bill Florac
2328 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2329 This is mainly on using lookup/lookfor, and some coding styles...
2331 2007-07-26 Frédéric Bernon (and "thedoctor")
2332 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2334 2007-07-25 Simon Goldschmidt
2335 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2336 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2337 (tcp_output is called again later from tcp timers).
2339 2007-07-25 Simon Goldschmidt
2340 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2341 copy_from_pbuf, which illegally modified the given pbuf.
2343 2007-07-25 Simon Goldschmidt
2344 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2345 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2347 2007-07-24 Simon Goldschmidt
2348 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2349 correct state (must be CLOSED).
2351 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2352 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2353 allocation. It now returns NULL.
2355 2007-07-13 Frédéric Bernon
2356 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2359 2007-07-13 Frédéric Bernon
2360 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2361 because current code doesn't follow rawapi.txt documentation.
2363 2007-07-13 Kieran Mansley
2364 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2365 out of sequence processing of received packets
2367 2007-07-03 Simon Goldschmidt
2368 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2369 assumption is made that this pbuf is in one piece (i.e. not chained). These
2370 assumptions clash with the possibility of converting to fully pool-based
2371 pbuf implementations, where PBUF_RAM pbufs might be chained.
2373 2007-07-03 Simon Goldschmidt
2374 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2375 when closing tcp netconns: removed conn->sem, less context switches when
2376 closing, both netconn_close and netconn_delete should safely close tcp
2379 2007-07-02 Simon Goldschmidt
2380 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2381 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2382 to cache ARP table indices with each pcb instead of single-entry cache for
2385 2007-07-02 Simon Goldschmidt
2386 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2387 warnings when assigning to smaller types.
2389 2007-06-28 Simon Goldschmidt
2390 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2392 2007-06-28 Simon Goldschmidt
2393 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2394 a segment contained chained pbufs)
2396 2007-06-28 Frédéric Bernon
2397 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2398 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2399 possible to define this macro in your own lwipopts.h to always use C library's
2400 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2402 2007-06-28 Frédéric Bernon
2403 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2404 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2405 in api_lib/api_msg (use pointers and not type with table, etc...)
2407 2007-06-26 Simon Goldschmidt
2408 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2410 2007-06-25 Simon Goldschmidt
2411 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2412 for udp packets with no matching pcb.
2414 2007-06-25 Simon Goldschmidt
2415 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2416 could get udp input packets if the remote side matched.
2418 2007-06-13 Simon Goldschmidt
2419 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2420 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2422 2007-06-13 Simon Goldschmidt
2423 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2424 -> netconn_new_..() does not allocate a new connection for unsupported
2427 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2428 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2429 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2431 2007-06-13 Frédéric Bernon, Matthias Weisser
2432 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2433 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2434 some macro names collision with some OS macros.
2436 2007-06-11 Simon Goldschmidt
2437 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2438 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2439 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2442 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2443 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2444 where TCP flags wasn't initialized in tcp_keepalive.
2446 2007-06-03 Simon Goldschmidt
2447 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2448 registered, p->payload was modified without modifying p->len if sending
2449 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2451 2007-06-03 Simon Goldschmidt
2452 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2453 re-used the input pbuf even if that didn't have enough space to include the
2454 link headers. Now the space is tested and a new pbuf is allocated for the
2455 echo response packet if the echo request pbuf isn't big enough.
2457 2007-06-01 Simon Goldschmidt
2458 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2460 2007-05-23 Frédéric Bernon
2461 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2462 allocated by do_listen if success) and netconn_accept errors handling. In
2463 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2464 by ASSERT, except for netconn_delete.
2466 2007-05-23 Frédéric Bernon
2467 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2468 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2469 directly close the recvmbox).
2471 2007-05-22 Simon Goldschmidt
2472 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2473 bound but unconnected (and non-listening) tcp_pcbs.
2475 2007-05-22 Frédéric Bernon
2476 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2477 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2478 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2479 like "sys_timeout" in their application threads.
2481 2007-05-22 Frédéric Bernon
2482 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2483 which parameters are used by which do_xxx function, and to avoid "misusing"
2484 parameters (patch #5938).
2486 2007-05-22 Simon Goldschmidt
2487 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2488 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2489 is only 8 bits wide. This affects the api, as there, the protocol was
2492 2007-05-18 Simon Goldschmidt
2493 * memp.c: addition to patch #5913: smaller pointer was returned but
2494 memp_memory was the same size -> did not save memory.
2496 2007-05-16 Simon Goldschmidt
2497 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2500 2007-05-16 Simon Goldschmidt
2501 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2502 as the one of the netif used for sending to prevent sending from old
2503 addresses after a netif address gets changed (partly fixes bug #3168).
2505 2007-05-16 Frédéric Bernon
2506 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2507 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2508 tcpip_init) because we have to be sure that network interfaces are already
2509 added (mac filter is updated only in igmp_init for the moment).
2511 2007-05-16 Simon Goldschmidt
2512 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2513 into sys_arch_sem_wait calls to prevent timers from running while waiting
2514 for the heap. This fixes bug #19167.
2516 2007-05-13 Simon Goldschmidt
2517 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2518 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2521 2007-05-07 Simon Goldschmidt
2522 * mem.c: Another attempt to fix bug #17922.
2524 2007-05-04 Simon Goldschmidt
2525 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2526 implementation so that it can be reused (don't allocate the target
2527 pbuf inside pbuf_copy()).
2529 2007-05-04 Simon Goldschmidt
2530 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2531 to save a little RAM (next pointer of memp is not used while not in pool).
2534 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2537 2007-04-23 Simon Goldschmidt
2538 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2539 in NULL reference for incoming TCP packets". Loopif has to be configured
2540 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2541 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2542 putting packets on a list that is fed to the stack by calling loopif_poll()
2543 (single-thread / NO_SYS / polling environment where e.g.
2544 netif->input() = ip_input).
2546 2007-04-17 Jonathan Larmour
2547 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2548 the difference between two u16_t's.
2549 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2550 MEMP_NUM_NETCONN in sockets.c right now.
2552 2007-04-12 Jonathan Larmour
2553 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2555 2007-04-12 Kieran Mansley
2556 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2557 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2559 2007-04-11 Simon Goldschmidt
2560 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2561 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2562 pbuf.c: removed functions no needed any more (by etharp).
2564 2007-04-11 Kieran Mansley
2565 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2566 "Constant is long" warnings with 16bit compilers. Contributed by
2567 avatar@mmlab.cse.yzu.edu.tw
2569 2007-04-05 Frédéric Bernon, Jonathan Larmour
2570 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2571 the mailbox is active". Now, the post is only done during a connect, and do_send,
2572 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2574 2007-04-03 Frédéric Bernon
2575 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2576 packets. See patch #5834.
2578 2007-03-30 Frédéric Bernon
2579 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2580 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2582 2007-03-30 Frédéric Bernon
2583 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2584 others environment defines (these were too "generic").
2586 2007-03-28 Frédéric Bernon
2587 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2588 result and can cause a crash. lwip_send now check netbuf_ref result.
2590 2007-03-28 Simon Goldschmidt
2591 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2592 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2593 defined. This is the way it should have been already (looking at
2596 2007-03-28 Kieran Mansley
2597 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2598 IP and TCP headers *and* physical link headers
2600 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2601 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2602 to send some garbage. It is not a definitive solution, but the patch does solve
2603 the problem for most cases.
2605 2007-03-22 Frédéric Bernon
2606 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2608 2007-03-22 Frédéric Bernon
2609 * api_lib.c: somes resources couldn't be freed if there was errors during
2610 netconn_new_with_proto_and_callback.
2612 2007-03-22 Frédéric Bernon
2613 * ethernetif.c: update netif->input calls to check return value. In older ports,
2614 it's a good idea to upgrade them, even if before, there could be another problem
2615 (access to an uninitialized mailbox).
2617 2007-03-21 Simon Goldschmidt
2618 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2619 by casting to unsigned).
2621 2007-03-21 Frédéric Bernon
2622 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2623 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2624 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2625 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2626 faster and more reliable communication between api_lib and tcpip.
2628 2007-03-21 Frédéric Bernon
2629 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2631 2007-03-21 Frédéric Bernon
2632 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2634 2007-03-21 Kieran Mansley
2635 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2638 2007-03-21 Kieran Mansley
2639 * Fix all uses of pbuf_header to check the return value. In some
2640 cases just assert if it fails as I'm not sure how to fix them, but
2641 this is no worse than before when they would carry on regardless
2644 2007-03-21 Kieran Mansley
2645 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2646 comment out missing header include in icmp.c
2648 2007-03-20 Frédéric Bernon
2649 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2650 synchronized with memp.h.
2652 2007-03-20 Frédéric Bernon
2653 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2654 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2655 network interfaces. Also fix a compiler warning.
2657 2007-03-20 Kieran Mansley
2658 * udp.c: Only try and use pbuf_header() to make space for headers if
2659 not a ROM or REF pbuf.
2661 2007-03-19 Frédéric Bernon
2662 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2665 2007-03-19 Frédéric Bernon
2666 * Remove unimplemented "memp_realloc" function from memp.h.
2668 2007-03-11 Simon Goldschmidt
2669 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2672 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2673 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2674 (missing `const' qualifier in socket functions), to get more compatible to
2675 standard POSIX sockets.
2677 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2678 * sockets.c: Add asserts inside bind, connect and sendto to check input
2679 parameters. Remove excessive set_errno() calls after get_socket(), because
2680 errno is set inside of get_socket(). Move last sock_set_errno() inside
2683 2007-03-09 Simon Goldschmidt
2684 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2685 was allocated too small.
2687 2007-03-06 Simon Goldschmidt
2688 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2689 the stack from concurrent access.
2691 2007-03-06 Frédéric Bernon, Dmitry Potapov
2692 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2693 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2695 2007-03-06 Simon Goldschmidt
2696 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2697 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2699 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2700 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2701 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2702 Allow to do ARP processing for incoming packets inside tcpip_thread
2703 (protecting ARP layer against concurrent access). You can also disable
2704 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2705 Older ports have to use tcpip_ethinput.
2707 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2708 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2709 from pointer target type"
2711 2007-03-05 Frédéric Bernon
2712 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2713 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2715 2007-03-04 Frédéric Bernon
2716 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2719 2007-03-04 Frédéric Bernon
2720 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2722 The api_msg struct stay on the stack (not moved to netconn struct).
2724 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2725 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2726 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2727 Also fixed cast warning in pbuf_alloc()
2729 2007-03-04 Simon Goldschmidt
2730 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2731 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2733 2007-03-03 Frédéric Bernon
2734 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2735 It is static, and never used in udp.c except udp_init().
2737 2007-03-02 Simon Goldschmidt
2738 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2739 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2740 initialized before tcpip_thread is running (e.g. before OS is started)
2742 2007-03-02 Frédéric Bernon
2743 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2746 2007-02-28 Kieran Mansley
2747 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2748 outside the region of the pbuf by pbuf_header()
2750 2007-02-28 Kieran Mansley
2751 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2752 when supplied timeout is also non-zero
2756 2006-12-05 Leon Woestenberg
2757 * CHANGELOG: Mention STABLE-1.2.0 release.
2761 2006-12-01 Christiaan Simons
2762 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2763 Note this is a workaround. Currently I have no other options left.
2765 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2766 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2767 to include/lwip/opt.h.
2768 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2769 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2770 * opt.h: Add above new options.
2772 2006-08-18 Christiaan Simons
2773 * tcp_{in,out}.c: added SNMP counters.
2774 * ipv4/ip.c: added SNMP counters.
2775 * ipv4/ip_frag.c: added SNMP counters.
2777 2006-08-08 Christiaan Simons
2778 * etharp.{c,h}: added etharp_find_addr() to read
2779 (stable) ethernet/IP address pair from ARP table
2781 2006-07-14 Christiaan Simons
2782 * mib_structs.c: added
2783 * include/lwip/snmp_structs.h: added
2784 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2786 2006-07-06 Christiaan Simons
2787 * snmp/asn1_{enc,dec}.c added
2789 * snmp/msg_{in,out}.c added
2790 * include/lwip/snmp_asn1.h added
2791 * include/lwip/snmp_msg.h added
2792 * doc/snmp_agent.txt added
2794 2006-03-29 Christiaan Simons
2795 * inet.c, inet.h: Added platform byteswap support.
2796 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2797 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2801 2006-11-30 Christiaan Simons
2802 * dhcp.c: Fixed false triggers of request_timeout.
2804 2006-11-28 Christiaan Simons
2805 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2807 2006-10-11 Christiaan Simons
2808 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2809 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2810 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2811 identifier from 170 to 136 (bug #17574).
2813 2006-10-10 Christiaan Simons
2814 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2816 2006-08-17 Christiaan Simons
2817 * udp.c: Fixed bug #17200, added check for broadcast
2818 destinations for PCBs bound to a unicast address.
2820 2006-08-07 Christiaan Simons
2821 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2823 2006-06-27 Christiaan Simons
2824 * api_msg.c: Applied patch for cold case (bug #11135).
2825 In accept_function() ensure newconn->callback is always initialized.
2827 2006-06-15 Christiaan Simons
2828 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2829 facilitate printing of mem_size_t and u16_t statistics.
2831 2006-06-14 Christiaan Simons
2832 * api_msg.c: Applied patch #5146 to handle allocation failures
2833 in accept() by Kevin Lawson.
2835 2006-05-26 Christiaan Simons
2836 * api_lib.c: Removed conn->sem creation and destruction
2837 from netconn_write() and added sys_sem_new to netconn_new_*.
2841 2006-03-03 Christiaan Simons
2842 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2843 access and added pbuf_alloc() return value checks.
2845 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2846 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2847 now handled by the checksum routine properly.
2849 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2850 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2851 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2853 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2854 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2855 submitted by Mitrani Hiroshi.
2857 2005-12-15 Christiaan Simons
2858 * inet.c: Disabled the added summing routine to preserve code space.
2860 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2861 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2862 Added Curt McDowell's optimized checksumming routine for future
2863 inclusion. Need to create test case for unaliged, aligned, odd,
2864 even length combination of cases on various endianess machines.
2866 2005-12-09 Christiaan Simons
2867 * inet.c: Rewrote standard checksum routine in proper portable C.
2869 2005-11-25 Christiaan Simons
2870 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2871 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2872 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2874 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2875 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2876 routine by Peter Jolasson.
2877 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2879 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2880 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2881 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2883 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2884 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2886 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2887 * udp.c: UDP pcb->recv() was called even when it was NULL.
2891 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2892 * etharp.*: Disabled multiple packets on the ARP queue.
2893 This clashes with TCP queueing.
2895 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2896 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2897 Halved the ARP period, doubled the period counts.
2898 ETHARP_MAX_PENDING now should be at least 2. This prevents
2899 the counter from reaching 0 right away (which would allow
2900 too little time for ARP responses to be received).
2902 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2903 * dhcp.c: Decline messages were not multicast but unicast.
2904 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2905 Do not try hard to insert arbitrary packet's source address,
2906 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2907 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2908 querying an address will see it appear in the cache (DHCP could
2909 suffer from this when a server invalidly gave an in-use address.)
2910 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2911 comparing network addresses (identifiers), not the network masks
2913 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2914 IP address actually belongs to the network of the given interface.
2916 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2917 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2921 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2922 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2923 even if one is already pending, if the rcv_wnd is above a threshold
2924 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2925 delayed ACK in order to open the window if the stack is only receiving data.
2927 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2928 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2930 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2931 * etharp.c: Make sure the first pbuf queued on an ARP entry
2932 is properly ref counted.
2934 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2935 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2936 warnings about comparison.
2937 * pbuf.c: Stopped compiler complaining of empty if statement
2938 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2939 * tcp.c: Stopped compiler complaining of empty if statement
2940 when LWIP_DEBUGF() empty.
2941 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2942 * inet.c: Added a couple of casts to quiet the compiler.
2943 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2945 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2946 * inet.c: Made data types consistent in inet_ntoa().
2947 Added casts for return values of checksum routines, to pacify compiler.
2948 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2949 Small corrections to some debugging statements, to pacify compiler.
2951 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2952 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2953 * ethernetif.c Updated low_level_output() to match prototype for
2954 netif->linkoutput and changed low_level_input() similarly for consistency.
2955 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2956 of raw_recv() in raw.h and so avoid compiler error.
2957 * sockets.c: Added trivial (int) cast to keep compiler happier.
2958 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2964 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2965 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2966 your cc.h file defines this either 1 or 0. If non-defined,
2968 * .c: Added <string.h> and <errno.h> includes where used.
2969 * etharp.c: Made some array indices unsigned.
2971 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2972 * netif.*: Added netif_set_up()/down().
2973 * dhcp.c: Changes to restart program flow.
2975 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2976 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2977 single-pass lookup for different candidates. Should exploit locality.
2979 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2980 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2981 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2982 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2983 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2987 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2988 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2989 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2990 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2991 is to prefix the 14-bit Ethernet headers with two padding bytes.
2993 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2994 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2995 * etharp.c: Fixed the case where the packet that initiates the ARP request
2996 is not queued, and gets lost. Fixed the case where the packets destination
2997 address is already known; we now always queue the packet and perform an ARP
3004 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
3005 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
3006 * Fixed two possible NULL references in rare cases.
3012 * Fixed DHCP which did not include the IP address in DECLINE messages.
3016 * etharp.c has been hauled over a bit.
3022 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
3023 * Packets sent from ARP queue had invalid source hardware address.
3027 * Pass-by ARP requests do now update the cache.
3031 * No longer dependent on ctype.h.
3032 * New socket options.
3033 * Raw IP pcb support.
3039 * Some debug formatters and casts fixed.
3040 * Numereous fixes in PPP.
3044 * DEBUGF now is LWIP_DEBUGF
3045 * pbuf_dechain() has been re-enabled.
3046 * Mentioned the changed use of CVS branches in README.
3052 * Fixed pool pbuf memory leak in pbuf_alloc().
3053 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
3054 Reported by Savin Zlobec.
3056 * PBUF_POOL chains had their tot_len field not set for non-first
3057 pbufs. Fixed in pbuf_alloc().
3061 * Added PPP stack contributed by Marc Boucher
3065 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
3067 * ARP queueuing now queues the latest packet instead of the first.
3068 This is the RFC recommended behaviour, but can be overridden in
3075 * TCP has been fixed to deal with the new use of the pbuf->ref
3078 * DHCP dhcp_inform() crash bug fixed.
3082 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3083 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3084 Implemented by David Haas.
3090 * The packet buffer implementation has been enhanced to support
3091 zero-copy and copy-on-demand for packet buffers which have their
3092 payloads in application-managed memory.
3093 Implemented by David Haas.
3095 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3096 if an outgoing packet can be directly sent on the link, or perform
3097 a copy-on-demand when necessary.
3099 The application can safely assume the packet is sent, and the RAM
3100 is available to the application directly after calling udp_send()
3101 or similar function.
3105 * ARP_QUEUEING should now correctly work for all cases, including
3107 Implemented by Leon Woestenberg.
3111 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3112 to a '0.0.0.0' IP address.
3114 * The packet buffer implementation is changed. The pbuf->ref counter
3115 meaning has changed, and several pbuf functions have been
3116 adapted accordingly.
3118 * netif drivers have to be changed to set the hardware address length field
3119 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3120 See the contrib/ports/c16x cs8900 driver as a driver example.
3122 * netif's have a dhcp field that must be initialized to NULL by the driver.
3123 See the contrib/ports/c16x cs8900 driver as a driver example.
3125 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3126 logged in CVS but have not been explained here.
3128 (0.5.3) Changes since version 0.5.2
3132 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3133 threads because it wasn't protected by semaphores.
3137 * struct ip_addr now packed.
3139 * The name of the time variable in arp.c has been changed to ctime
3140 to avoid conflicts with the time() function.
3142 (0.5.2) Changes since version 0.5.1
3146 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3150 * A bug in tcp_parseopt() could cause the stack to hang because of a
3151 malformed TCP option.
3153 * The address of new connections in the accept() function in the BSD
3154 socket library was not handled correctly.
3156 * pbuf_dechain() did not update the ->tot_len field of the tail.
3158 * Aborted TCP connections were not handled correctly in all
3163 * All protocol header structs are now packed.
3165 * The ->len field in the tcp_seg structure now counts the actual
3166 amount of data, and does not add one for SYN and FIN segments.
3168 (0.5.1) Changes since version 0.5.0
3172 * Possible to run as a user process under Linux.
3174 * Preliminary support for cross platform packed structs.
3176 * ARP timer now implemented.
3180 * TCP output queue length was badly initialized when opening
3183 * TCP delayed ACKs were not sent correctly.
3185 * Explicit initialization of BSS segment variables.
3187 * read() in BSD socket library could drop data.
3189 * Problems with memory alignment.
3191 * Situations when all TCP buffers were used could lead to
3194 * TCP MSS option wasn't parsed correctly.
3196 * Problems with UDP checksum calculation.
3198 * IP multicast address tests had endianess problems.
3200 * ARP requests had wrong destination hardware address.
3204 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3206 * A ->linkoutput() member was added to struct netif.
3208 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3210 * ntoh* macros are now null definitions for big endian CPUs.
3212 (0.5.0) Changes since version 0.4.2
3216 * Redesigned operating system emulation layer to make porting easier.
3218 * Better control over TCP output buffers.
3220 * Documenation added.
3224 * Locking issues in buffer management.
3226 * Bugfixes in the sequential API.
3228 * IP forwarding could cause memory leakage. This has been fixed.
3232 * Directory structure somewhat changed; the core/ tree has been
3235 (0.4.2) Changes since version 0.4.1
3239 * Experimental ARP implementation added.
3241 * Skeleton Ethernet driver added.
3243 * Experimental BSD socket API library added.
3247 * In very intense situations, memory leakage could occur. This has
3252 * Variables named "data" and "code" have been renamed in order to
3253 avoid name conflicts in certain compilers.
3255 * Variable++ have in appliciable cases been translated to ++variable
3256 since some compilers generate better code in the latter case.
3258 (0.4.1) Changes since version 0.4
3262 * TCP: Connection attempts time out earlier than data
3263 transmissions. Nagle algorithm implemented. Push flag set on the
3264 last segment in a burst.
3266 * UDP: experimental support for UDP-Lite extensions.
3270 * TCP: out of order segments were in some cases handled incorrectly,
3271 and this has now been fixed. Delayed acknowledgements was broken
3272 in 0.4, has now been fixed. Binding to an address that is in use
3273 now results in an error. Reset connections sometimes hung an
3274 application; this has been fixed.
3276 * Checksum calculation sometimes failed for chained pbufs with odd
3277 lengths. This has been fixed.
3279 * API: a lot of bug fixes in the API. The UDP API has been improved
3280 and tested. Error reporting and handling has been
3281 improved. Logical flaws and race conditions for incoming TCP
3282 connections has been found and removed.
3284 * Memory manager: alignment issues. Reallocating memory sometimes
3285 failed, this has been fixed.
3287 * Generic library: bcopy was flawed and has been fixed.
3291 * API: all datatypes has been changed from generic ones such as
3292 ints, to specified ones such as u16_t. Functions that return
3293 errors now have the correct type (err_t).
3295 * General: A lot of code cleaned up and debugging code removed. Many
3296 portability issues have been fixed.
3298 * The license was changed; the advertising clause was removed.
3302 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3303 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3306 (0.4) Changes since version 0.3.1
3308 * Memory management has been radically changed; instead of
3309 allocating memory from a shared heap, memory for objects that are
3310 rapidly allocated and deallocated is now kept in pools. Allocation
3311 and deallocation from those memory pools is very fast. The shared
3312 heap is still present but is used less frequently.
3314 * The memory, memory pool, and packet buffer subsystems now support
3315 4-, 2-, or 1-byte alignment.
3317 * "Out of memory" situations are handled in a more robust way.
3319 * Stack usage has been reduced.
3321 * Easier configuration of lwIP parameters such as memory usage,
3322 TTLs, statistics gathering, etc. All configuration parameters are
3323 now kept in a single header file "lwipopts.h".
3325 * The directory structure has been changed slightly so that all
3326 architecture specific files are kept under the src/arch
3329 * Error propagation has been improved, both in the protocol modules
3332 * The code for the RTXC architecture has been implemented, tested
3335 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3336 the Internet checksum modules.
3338 * Bugs related to porting between a 32-bit and a 16-bit architecture
3339 have been found and corrected.
3341 * The license has been changed slightly to conform more with the
3342 original BSD license, including the advertisement clause.
3344 (0.3.1) Changes since version 0.3
3346 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3347 RAM never returned the RAM when the pbuf was deallocated.
3349 * TCP congestion control, window updates and retransmissions did not
3350 work correctly. This has now been fixed.
3352 * Bugfixes in the API.
3354 (0.3) Changes since version 0.2
3356 * New and improved directory structure. All include files are now
3357 kept in a dedicated include/ directory.
3359 * The API now has proper error handling. A new function,
3360 netconn_err(), now returns an error code for the connection in
3363 * Improvements in the memory management subsystem. The system now
3364 keeps a pointer to the lowest free memory block. A new function,
3365 mem_malloc2() tries to allocate memory once, and if it fails tries
3366 to free some memory and retry the allocation.
3368 * Much testing has been done with limited memory
3369 configurations. lwIP now does a better job when overloaded.
3371 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3373 * Many bugfixes in the TCP code:
3375 - Fixed a bug in tcp_close().
3377 - The TCP receive window was incorrectly closed when out of
3378 sequence segments was received. This has been fixed.
3380 - Connections are now timed-out of the FIN-WAIT-2 state.
3382 - The initial congestion window could in some cases be too
3383 large. This has been fixed.
3385 - The retransmission queue could in some cases be screwed up. This
3388 - TCP RST flag now handled correctly.
3390 - Out of sequence data was in some cases never delivered to the
3391 application. This has been fixed.
3393 - Retransmitted segments now contain the correct acknowledgment
3394 number and advertised window.
3396 - TCP retransmission timeout backoffs are not correctly computed
3397 (ala BSD). After a number of retransmissions, TCP now gives up
3400 * TCP connections now are kept on three lists, one for active
3401 connections, one for listening connections, and one for
3402 connections that are in TIME-WAIT. This greatly speeds up the fast
3403 timeout processing for sending delayed ACKs.
3405 * TCP now provides proper feedback to the application when a
3406 connection has been successfully set up.
3408 * More comments have been added to the code. The code has also been
3409 somewhat cleaned up.
3411 (0.2) Initial public release.