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 2012-09-26: patch by Henrik Persson
84 * dhcp.c: patch #7843 Fix corner case with dhcp timeouts
86 2012-09-26: patch by Henrik Persson
87 * dhcp.c: patch #7840 Segfault in dhcp_parse_reply if no end marker in dhcp packet
89 2012-08-22: Simon Goldschmidt
90 * memp.c: fixed bug #37166: memp_sanity check loops itself
92 2012-08-13: Simon Goldschmidt
93 * dhcp.c: fixed bug #36645: Calling dhcp_release before dhcp_start
96 2012-08-13: Simon Goldschmidt
97 * msg_out.c: fixed bug #36840 snmp_send_trap() NULL de-reference if traps
98 configured but no interfaces available
100 2012-08-13: Simon Goldschmidt
101 * dns.c: fixed bug #36899 DNS TTL 0 is cached for a long time
103 2012-05-11: Simon Goldschmidt (patch by Marty)
104 * memp.c: fixed bug #36412: memp.c does not compile when
105 MEMP_OVERFLOW_CHECK > zero and MEMP_SEPARATE_POOLS == 1
107 2012-05-08: Simon Goldschmidt
108 * tcp_out.c: fixed bug #36380: unsent_oversize mismatch in 1.4.1RC1 (this was
109 a debug-check issue only)
111 2012-05-03: Simon Goldschmidt (patch by Sylvain Rochet)
112 * ppp.c: fixed bug #36283 (PPP struct used on header size computation and
115 2012-05-03: Simon Goldschmidt (patch by David Empson)
116 * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with
119 2012-03-27: Simon Goldschmidt
120 * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
122 2012-03-27: Simon Goldschmidt (patch by Mason)
123 * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
126 2012-03-25: Simon Goldschmidt
127 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
128 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
130 2012-03-25: Simon Goldschmidt
131 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
132 pollution in api_msg.c and netifapi.c
134 2012-03-22: Simon Goldschmidt
135 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
137 2012-03-20: Simon Goldschmidt (patch by Mason)
138 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
140 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
141 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
142 possible bug on little endian system
144 2012-02-23: Simon Goldschmidt
145 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
146 (introduced when fixing bug# 33551)
148 2012-02-16: Simon Goldschmidt
149 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
150 (bug #35541: PPP Memory Leak)
152 2012-02-16: Simon Goldschmidt
153 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
154 (introduced when fixing bug# 33551)
156 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
157 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
159 2012-02-15: Simon Goldschmidt
160 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
163 2012-02-12: Simon Goldschmidt
164 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
165 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
167 2012-02-11: Simon Goldschmidt
168 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
171 2012-01-22: Simon Goldschmidt
172 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
174 2012-01-21: Simon Goldschmidt
175 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
177 2012-01-20: Simon Goldschmidt
178 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
180 2012-01-20: Simon Goldschmidt
181 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
183 2011-11-25: Simon Goldschmidt
184 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
185 tcp_active_pcbs in some cases
187 2011-11-23: Simon Goldschmidt
188 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
191 2011-11-22: Simon Goldschmidt
192 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
193 netif is brought down
195 2011-10-28: Simon Goldschmidt
196 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
198 2011-10-23: Simon Goldschmidt
199 * mem.c: fixed bug #34429: possible memory corruption with
200 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
202 2011-10-18: Simon Goldschmidt
203 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
206 2011-10-18: Simon Goldschmidt
207 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
208 windows (bug #34176 select after non-blocking send times out)
210 2011-10-18: Simon Goldschmidt
211 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
212 consider netif->mtu, causes slow network
214 2011-10-18: Simon Goldschmidt
215 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
217 2011-10-18: Simon Goldschmidt
218 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
220 2011-10-17: Simon Goldschmidt
221 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
223 2011-10-13: Simon Goldschmidt
224 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
225 zero window is received) by starting the persist timer when a zero window is
226 received, not when we have more data queued for sending than fits into the
229 2011-10-13: Simon Goldschmidt
230 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
232 2011-10-13: Simon Goldschmidt
233 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
234 used and not all protocols are enabled
236 2011-10-12: Simon Goldschmidt
237 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
239 2011-10-09: Simon Goldschmidt
240 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
241 byte value when pcb->unacked != NULL
243 2011-10-09: Simon Goldschmidt
244 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
246 2011-09-27: Simon Goldschmidt
247 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
249 2011-09-27: Simon Goldschmidt
250 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
252 2011-09-27: Simon Goldschmidt
253 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
255 2011-09-24: Simon Goldschmidt
256 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
258 2011-09-23: Simon Goldschmidt
259 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
260 the last packet including FIN can lose data
262 2011-09-22: Simon Goldschmidt
263 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
266 2011-09-21: Simon Goldschmidt
267 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
270 2011-09-20: Simon Goldschmidt
271 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
273 2011-09-11: Simon Goldschmidt
274 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
277 2011-09-09: Simon Goldschmidt
278 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
281 2011-09-03: Simon Goldschmidt
282 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
283 is aggregated and sent to application
285 2011-09-01: Simon Goldschmidt
286 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
289 2011-09-01: Simon Goldschmidt
290 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
292 2011-08-24: Simon Goldschmidt
293 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
295 2011-08-24: Simon Goldschmidt
296 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
297 accept() on UDP connections
299 2011-08-24: Simon Goldschmidt
300 * sockets.h: fixed bug #34057 socklen_t should be a typedef
302 2011-08-24: Simon Goldschmidt
303 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
305 2011-08-24: Simon Goldschmidt
306 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
308 2011-08-24: Simon Goldschmidt
309 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
311 2011-08-22: Simon Goldschmidt
312 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
313 merely prevents nagle from not transmitting fast after closing.)
315 2011-07-22: Simon Goldschmidt
316 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
317 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
318 lwip_send() sends as much as possible for non-blocking sockets
320 2011-07-22: Simon Goldschmidt
321 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
322 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
323 at regular intervals from main level.
325 2011-07-21: Simon Goldschmidt
326 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
327 sending an ARP request when an ARP entry is used in the last minute before
330 2011-07-04: Simon Goldschmidt
331 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
333 2011-06-26: Simon Goldschmidt
334 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
335 updating its documentation only.
337 2011-06-26: Simon Goldschmidt
338 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
341 2011-06-26: Simon Goldschmidt
342 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
350 2011-03-27: Simon Goldschmidt
351 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
352 calculate it in tcp_zero_window_probe (the only place where it was used).
354 2010-11-21: Simon Goldschmidt
355 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
358 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
359 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
360 IP_MULTICAST_LOOP at socket- and raw-API level.
362 2010-06-16: Simon Goldschmidt
363 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
364 link-layer-addressed UDP traffic to be received while a netif is down (just
365 like DHCP during configuration)
367 2010-05-22: Simon Goldschmidt
368 * many many files: bug #27352: removed packing from ip_addr_t, the packed
369 version is now only used in protocol headers. Added global storage for
370 current src/dest IP address while in input functions.
372 2010-05-16: Simon Goldschmidt
373 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
374 calculation (and use them throughout the stack where applicable)
376 2010-05-16: Simon Goldschmidt
377 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
378 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
380 2010-05-16: Simon Goldschmidt
381 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
382 MEMP pool instead of the heap
384 2010-05-13: Simon Goldschmidt
385 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
386 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
387 packets to more than one pcb.
389 2010-05-02: Simon Goldschmidt
390 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
391 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
393 2010-04-30: Simon Goldschmidt
394 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
395 take a precalculated checksum, added pbuf_fill_chksum() to copy data
396 into a pbuf and at the same time calculating the checksum for that data
398 2010-04-29: Simon Goldschmidt
399 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
400 2-byte-aligned IP addresses and MAC addresses
402 2010-04-28: Patch by Bill Auerbach
403 * ip.c: Inline generating IP checksum to save a function call
405 2010-04-14: Simon Goldschmidt
406 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
407 tcpip_thread processes messages or timeouts to implement a watchdog.
409 2010-03-28: Simon Goldschmidt
410 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
411 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
413 2010-03-27: Simon Goldschmidt
414 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
415 etharp_query to prevent unnecessary function calls (inspired by
418 2010-03-20: Simon Goldschmidt
419 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
420 since the linker cannot do this automatically to save space.
422 2010-03-20: Simon Goldschmidt
423 * opt.h, etharp.c/.h: Added support for static ARP table entries
425 2010-03-14: Simon Goldschmidt
426 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
427 when creating TCP segments, not when (re-)transmitting them.
429 2010-03-07: Simon Goldschmidt
430 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
431 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
432 This should speed up receiving data on sockets as the select code in
433 event_callback is only executed when select is waiting.
435 2010-03-06: Simon Goldschmidt
436 * tcp_out.c: task #7013 (Create option to have all packets delivered to
437 netif->output in one piece): Always copy to try to create single pbufs
440 2010-03-06: Simon Goldschmidt
441 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
442 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
443 for tcp netconns to receive pbufs, not netbufs; use that function
446 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
447 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
448 Work on tcp_enqueue: Don't waste memory when chaining segments,
449 added option TCP_OVERSIZE to prevent creating many small pbufs when
450 calling tcp_write with many small blocks of data. Instead, pbufs are
451 allocated larger than needed and the space is used for later calls to
454 2010-02-21: Simon Goldschmidt
455 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
458 2010-02-21: Simon Goldschmidt
459 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
460 implementation of tcp to make API usage cleare to application programmers
462 2010-02-14: Simon Goldschmidt/Stephane Lesage
463 * ip_addr.h: Improved some defines working on ip addresses, added faster
464 macro to copy addresses that cannot be NULL
466 2010-02-13: Simon Goldschmidt
467 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
468 blocking send operation)
470 2010-02-12: Simon Goldschmidt
471 * sockets.c/.h: Added a minimal version of posix fctl() to have a
472 standardised way to set O_NONBLOCK for nonblocking sockets.
474 2010-02-12: Simon Goldschmidt
475 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
476 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
477 and dhcp work with user-allocated structs instead of callin mem_malloc
479 2010-02-12: Simon Goldschmidt/Jeff Barber
480 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
481 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
483 2010-02-12: Simon Goldschmidt
484 * sys layer: task #10139 (Prefer statically allocated memory): converted
485 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
486 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
487 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
488 to let sys.h use binary semaphores instead of mutexes - as before)
490 2010-02-09: Simon Goldschmidt (Simon Kallweit)
491 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
492 (Restart system timeout handling)
494 2010-02-09: Simon Goldschmidt
495 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
496 netif.c) - loopif does not have to be created by the port any more,
497 just define LWIP_HAVE_LOOPIF to 1.
499 2010-02-08: Simon Goldschmidt
500 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
501 inet_ntoa_r/ipaddr_ntoa_r
503 2010-02-08: Simon Goldschmidt
504 * netif.h: Added netif_s/get_igmp_mac_filter() macros
506 2010-02-05: Simon Goldschmidt
507 * netif.h: Added function-like macros to get/set the hostname on a netif
509 2010-02-04: Simon Goldschmidt
510 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
511 make changing the actual implementation behind the typedef easier.
513 2010-02-01: Simon Goldschmidt
514 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
515 for allocating memory when getaddrinfo() is called.
517 2010-01-31: Simon Goldschmidt
518 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
519 them once instead of parsing for every option. This also removes
520 the need for mem_malloc from dhcp_recv and makes it possible to
521 correctly retrieve the BOOTP file.
523 2010-01-30: simon Goldschmidt
524 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
527 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
528 * api.h, api_msg.c, sockets.c: Added except set support in select
531 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
532 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
533 Add non-blocking support for connect (partly from patch #6860),
534 plus many cleanups in socket & netconn API.
536 2010-01-27: Simon Goldschmidt
537 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
538 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
540 2010-01-26: Simon Goldschmidt
541 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
543 2010-01-14: Simon Goldschmidt
544 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
545 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
547 2010-01-13: Simon Goldschmidt
548 * mem.c: The heap now may be moved to user-defined memory by defining
549 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
550 (patch #6966 and bug #26133)
552 2010-01-10: Simon Goldschmidt (Bill Auerbach)
553 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
556 2010-01-10: Simon Goldschmidt
557 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
558 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
560 2009-12-31: Simon Goldschmidt
561 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
562 added timers.c/.h: Separated timer implementation from semaphore/mbox
563 implementation, moved timer implementation to timers.c/.h, timers are
564 now only called from tcpip_thread or by explicitly checking them.
567 2009-12-27: Simon Goldschmidt
568 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
569 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
574 2011-04-20: Simon Goldschmidt
575 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
577 2011-04-13: Simon Goldschmidt
578 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
579 using ports in the IANA private/dynamic range (49152 through 65535).
581 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
582 * etharp.h/.c: Fixed broken VLAN support.
584 2011-03-27: Simon Goldschmidt
585 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
586 pcbs) by checking if the pcb was bound (local_port != 0).
588 2011-03-27: Simon Goldschmidt
589 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
591 2011-03-27: Simon Goldschmidt
592 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
593 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
595 2011-03-27: Simon Goldschmidt
596 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
597 is present never times out) by starting retransmission timer before checking
600 2011-03-22: Simon Goldschmidt
601 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
602 calling sio_read_abort() if the file descriptor is valid.
604 2011-03-14: Simon Goldschmidt
605 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
606 more than once can render a socket useless) since it mainly involves changing
607 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
609 2011-03-13: Simon Goldschmidt
610 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
611 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
612 use EALRADY instead of -1
614 2011-03-13: Simon Goldschmidt
615 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
616 connection has been aborted by err_tcp (since this is not a normal closing
619 2011-03-13: Simon Goldschmidt
620 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
621 with pcb->state != CLOSED
623 2011-02-17: Simon Goldschmidt
624 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
627 2011-02-17: Simon Goldschmidt
628 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
630 2011-01-24: Simon Goldschmidt
631 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
633 2010-12-02: Simon Goldschmidt
634 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
636 2010-11-23: Simon Goldschmidt
637 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
638 LWIP_SO_RCVBUF and ioctl/FIONREAD.
640 2010-11-23: Simon Goldschmidt
641 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
642 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
644 2010-11-23: Simon Goldschmidt
645 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
646 refusing 'refused_data' again.
648 2010-11-22: Simon Goldschmidt
649 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
650 after a successful nonblocking connection.
652 2010-11-22: Simon Goldschmidt
653 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
654 must be sent link-local
656 2010-11-22: Simon Goldschmidt
657 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
660 2010-11-20: Simon Goldschmidt
661 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
663 2010-11-20: Simon Goldschmidt
664 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
665 resemble other stacks.
667 2010-11-20: Simon Goldschmidt
668 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
669 no-copy TCP writes will never succeed.
671 2010-11-20: Simon Goldschmidt
672 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
673 not match documentation: return ERR_ARG instead of ERR_VAL if not
674 initialized or wrong argument.
676 2010-10-20: Simon Goldschmidt
677 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
679 2010-10-05: Simon Goldschmidt
680 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
681 replugging the network cable after an AutoIP address was assigned.
683 2010-08-10: Simon Goldschmidt
684 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
686 2010-08-03: Simon Goldschmidt
687 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
689 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
690 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
691 endian architectures)
693 2010-07-28: Simon Goldschmidt
694 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
697 2010-07-27: Simon Goldschmidt
698 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
699 harm but never did anything
701 2010-07-21: Simon Goldschmidt
702 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
705 2010-07-16: Kieran Mansley
706 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
708 2010-07-10: Simon Goldschmidt
709 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
711 2010-06-30: Simon Goldschmidt
712 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
715 2010-06-28: Kieran Mansley
716 * timers.c remove unportable printing of C function pointers
718 2010-06-24: Simon Goldschmidt
719 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
720 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
722 2010-06-24: Simon Goldschmidt
723 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
724 implemented shutdown at socket level.
726 2010-06-21: Simon Goldschmidt
727 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
728 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
729 custom pbufs that reference other (original) pbufs. Additionally set
730 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
732 2010-06-15: Simon Goldschmidt
733 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
735 2010-06-14: Simon Goldschmidt
736 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
738 2010-06-12: Simon Goldschmidt
739 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
742 2010-05-17: Simon Goldschmidt
743 * netdb.c: Correctly NULL-terminate h_addr_list
745 2010-05-16: Simon Goldschmidt
746 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
747 "symbol already defined" i.e. when linking to winsock
749 2010-05-05: Simon Goldschmidt
750 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
753 2010-04-21: Simon Goldschmidt
754 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
757 2010-03-28: Luca Ceresoli
758 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
760 2010-03-27: Luca Ceresoli
761 * mib2.c: patch #7130: remove meaningless const qualifiers
763 2010-03-26: Simon Goldschmidt
764 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
766 2010-03-26: Simon Goldschmidt
767 * various files: Fixed compiling with different options disabled (TCP/UDP),
768 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
770 2010-03-25: Simon Goldschmidt
771 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
773 2010-03-25: Simon Goldschmidt
774 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
775 overrunning our rcv_wnd in ooseq case.
777 2010-03-22: Simon Goldschmidt
778 * tcp.c: tcp_listen() did not copy the pcb's prio.
780 2010-03-19: Simon Goldschmidt
781 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
783 2010-03-14: Simon Goldschmidt
784 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
785 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
786 and basing PBUF_LINK_HLEN on it.
788 2010-03-08: Simon Goldschmidt
789 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
790 when assiging routable address): when checking incoming packets and
791 aborting existing connection on address change, filter out link-local
794 2010-03-06: Simon Goldschmidt
795 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
797 2010-03-06: Simon Goldschmidt
798 * ipv4/ip.c: Don't try to forward link-local addresses
800 2010-03-06: Simon Goldschmidt
801 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
804 2010-03-05: Simon Goldschmidt
805 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
808 2010-03-05: Simon Goldschmidt
809 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
810 into multiple calls to tcp_write.
812 2010-02-21: Simon Goldschmidt
813 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
814 the implementation of DNS_USES_STATIC_BUF==1)
816 2010-02-20: Simon Goldschmidt
817 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
818 close() vs. shutdown(). Now the application does not get any more
819 recv callbacks after calling tcp_close(). Added tcp_shutdown().
821 2010-02-19: Simon Goldschmidt
822 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
823 confusion with realloc()
825 2010-02-15: Simon Goldschmidt/Stephane Lesage
826 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
829 2010-02-14: Simon Goldschmidt
830 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
831 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
832 admin-status of a netif are up
834 2010-02-14: Simon Goldschmidt
835 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
836 reception and is not really necessary
838 2010-02-14: Simon Goldschmidt
839 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
840 request was directed as us (RFC 826, Packet Reception), otherwise
841 only update existing entries; internalized some functions
843 2010-02-14: Simon Goldschmidt
844 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
845 disabled on netif used for PPPoE) by adding a new netif flag
846 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
847 device but prevents usage of ARP (so that ethernet_input can be used
850 2010-02-12: Simon Goldschmidt
851 * netif.c: netif_set_link_up/down: only do something if the link state
854 2010-02-12: Simon Goldschmidt/Stephane Lesage
855 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
858 2010-02-12: Simon Goldschmidt
859 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
861 2010-02-09: Simon Goldschmidt
862 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
863 (recv() makes receive window update for data that wasn't received by
866 2010-02-09: Simon Goldschmidt/Stephane Lesage
867 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
868 or any netconn_recv() error)
870 2010-02-09: Simon Goldschmidt
871 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
873 2010-02-09: Simon Goldschmidt
874 * netif.c: For loopback packets, adjust the stats- and snmp-counters
875 for the loopback netif.
877 2010-02-08: Simon Goldschmidt
878 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
879 since they are not used anywhere else.
881 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
882 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
883 (patch from bug #28798)
885 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
886 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
887 another bug when LWIP_RAND() returns zero.
889 2010-02-04: Simon Goldschmidt
890 * nearly every file: Use macros defined in ip_addr.h (some of them new)
891 to work with IP addresses (preparation for bug #27352 - Change ip_addr
892 from struct to typedef (u32_t) - and better code).
894 2010-01-31: Simon Goldschmidt
895 * netif.c: Don't call the link-callback from netif_set_up/down() since
896 this invalidly retriggers DHCP.
898 2010-01-29: Simon Goldschmidt
899 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
900 portability file inet.h and its contents from the stack: moved htonX-
901 functions to def.h (and the new def.c - they are not ipv4 dependent),
902 let inet.h depend on ip_addr.h and not the other way round.
903 This fixes bug #28732.
905 2010-01-28: Kieran Mansley
906 * tcp.c: Ensure ssthresh >= 2*MSS
908 2010-01-27: Simon Goldschmidt
909 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
910 callback can lead to accessing unallocated memory. As a consequence,
911 ERR_ABRT means the application has called tcp_abort()!
913 2010-01-25: Simon Goldschmidt
914 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
915 not implemented in SNMP): write-only or not-accessible are still
916 returned by getnext (though not by get)
918 2010-01-24: Simon Goldschmidt
919 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
920 not use reserved C/C++ keywords
922 2010-01-23: Simon Goldschmidt
923 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
926 2010-01-21: Simon Goldschmidt
927 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
928 if tcp_enqueue fails) both in raw- and netconn-API
930 2010-01-19: Simon Goldschmidt
931 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
933 2010-01-18: Iordan Neshev/Simon Goldschmidt
934 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
935 bugfix backports from 2.4.x.
937 2010-01-18: Simon Goldschmidt
938 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
940 2010-01-17: Simon Goldschmidt
941 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
942 task #10102: "netconn: clean up conn->err threading issues" by adding
943 error return value to struct api_msg_msg
945 2010-01-17: Simon Goldschmidt
946 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
947 to return err_t (bugs #27709 and #28087)
949 2010-01-14: Simon Goldschmidt
950 * ...: Use typedef for function prototypes throughout the stack.
952 2010-01-13: Simon Goldschmidt
953 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
954 window = 0) by correctly draining recvmbox/acceptmbox
956 2010-01-11: Simon Goldschmidt
957 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
958 erroneous callbacks) by copying the code from recent pppd
960 2010-01-10: Simon Goldschmidt
961 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
963 2010-01-10: Simon Goldschmidt
964 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
966 2010-01-08: Simon Goldschmidt
967 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
969 2010-01-08: Simon Goldschmidt
970 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
971 passed to dns_local_addhost() might be volatile
973 2010-01-07: Simon Goldschmidt
974 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
976 2010-01-06: Simon Goldschmidt
977 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
979 2009-12-31: Simon Goldschmidt
980 * many ppp files: Reorganised PPP source code from ucip structure to pppd
981 structure to easily compare our code against the pppd code (around v2.3.1)
983 2009-12-27: Simon Goldschmidt
984 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
992 2009-10-27 Simon Goldschmidt/Stephan Lesage
993 * netifapi.c/.h: Added netifapi_netif_set_addr()
995 2009-10-07 Simon Goldschmidt/Fabian Koch
996 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
997 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
999 2009-08-26 Simon Goldschmidt/Simon Kallweit
1000 * slipif.c/.h: bug #26397: SLIP polling support
1002 2009-08-25 Simon Goldschmidt
1003 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
1004 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
1006 2009-08-25 Simon Goldschmidt
1007 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
1009 2009-08-24 Jakob Stoklund Olesen
1010 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
1011 to netif_set_link_up().
1013 2009-08-23 Simon Goldschmidt
1014 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
1015 to a human-readable string.
1019 2009-12-24: Kieran Mansley
1020 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
1023 2009-12-06: Simon Goldschmidt
1024 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
1025 be statically allocated (like in ucip)
1027 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
1028 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
1030 2009-12-03: Simon Goldschmidt
1031 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
1032 could have non-zero length
1034 2009-12-02: Simon Goldschmidt
1035 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
1036 tcp_input_pcb until after calling the pcb's callbacks
1038 2009-11-29: Simon Goldschmidt
1039 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
1040 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
1042 2009-11-29: Simon Goldschmidt
1043 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1044 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1046 2009-11-26: Simon Goldschmidt
1047 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1050 2009-11-26: Simon Goldschmidt
1051 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1052 algorithm at PCB level
1054 2009-11-22: Simon Goldschmidt
1055 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1057 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1058 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1059 reusing time-wait pcb
1061 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1062 * sockets.c: Fixed bug #28062: Data received directly after accepting
1063 does not wake up select
1065 2009-11-11: Simon Goldschmidt
1066 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1068 2009-10-30: Simon Goldschmidt
1069 * opt.h: Increased default value for TCP_MSS to 536, updated default
1070 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1072 2009-10-28: Kieran Mansley
1073 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1074 to follow algorithm from TCP/IP Illustrated
1076 2009-10-27: Kieran Mansley
1077 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1079 2009-10-25: Simon Goldschmidt
1080 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1081 pcb->recv is NULL to keep rcv_wnd correct)
1083 2009-10-25: Simon Goldschmidt
1084 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1086 2009-10-23: Simon Goldschmidt (David Empson)
1087 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1089 2009-10-21: Simon Goldschmidt
1090 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1091 trailing 1 byte len (SYN/FIN)
1093 2009-10-21: Simon Goldschmidt
1094 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1096 2009-10-19: Simon Goldschmidt
1097 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1098 conditional code to assert where applicable), check pbuf length before
1099 testing for valid reply
1101 2009-10-19: Simon Goldschmidt
1102 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1103 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1105 2009-10-16: Simon Goldschmidt
1106 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1107 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1110 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1111 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1113 2009-10-15: Simon Goldschmidt
1114 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1117 2009-10-15: Simon Goldschmidt
1118 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1119 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1120 of network byte order
1122 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1123 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1124 which are not consecutive when retransmitting unacked segments
1126 2009-10-09 Simon Goldschmidt
1127 * opt.h: Fixed default values of some stats to only be enabled if used
1128 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1130 2009-08-30 Simon Goldschmidt
1131 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1132 function" by checking for loopback before calling ip_frag
1134 2009-08-25 Simon Goldschmidt
1135 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1137 2009-08-23 Simon Goldschmidt
1138 * ppp.c: bug #27078: Possible memory leak in pppInit()
1140 2009-08-23 Simon Goldschmidt
1141 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1144 2009-08-23 Simon Goldschmidt
1145 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1146 Fixed wrong parenthesis, added check in init.c
1148 2009-08-23 Simon Goldschmidt
1149 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1151 2009-08-23 Simon Goldschmidt
1152 * many ppp files: bug #27267: Added include to string.h where needed
1154 2009-08-23 Simon Goldschmidt
1155 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1162 2009-05-10 Simon Goldschmidt
1163 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1164 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1165 one pbuf to help MACs that don't support scatter-gather DMA.
1167 2009-05-09 Simon Goldschmidt
1168 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1169 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1171 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1172 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1173 extended info about the currently received packet.
1175 2009-04-27 Simon Goldschmidt
1176 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1178 2009-04-25 Simon Goldschmidt
1179 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1180 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1182 2009-04-21 Simon Goldschmidt
1183 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1184 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1185 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1186 as an external function for lookup.
1188 2009-04-15 Simon Goldschmidt
1189 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1191 2009-03-31 Kieran Mansley
1192 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1193 TCP timestamp options, off by default. Rework tcp_enqueue() to
1194 take option flags rather than specified option data
1196 2009-02-18 Simon Goldschmidt
1197 * cc.h: Added printf formatter for size_t: SZT_F
1199 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1200 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1203 2009-02-12 Simon Goldschmidt
1204 * init.h: Added LWIP_VERSION to get the current version of the stack
1206 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1207 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1208 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1211 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1212 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1213 is only used by UDPLITE at present, so conditionalise it.
1215 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1216 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1217 "seed" address. This should reduce AUTOIP conflicts if
1218 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1220 2008-10-02 Jonathan Larmour and Rishi Khan
1221 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1224 2008-06-30 Simon Goldschmidt
1225 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1226 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1227 mem_free to run between mem_malloc iterations. Added illegal counter for
1230 2008-06-27 Simon Goldschmidt
1231 * stats.h/.c, some other files: patch #6483: stats module improvement:
1232 Added defines to display each module's statistic individually, added stats
1233 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1235 2008-06-17 Simon Goldschmidt
1236 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1237 (define LWIP_ERR_T in cc.h)
1239 2008-06-17 Simon Goldschmidt
1240 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1243 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1244 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1245 modified version of patch # 6370: Moved loopif code to netif.c so that
1246 loopback traffic is supported on all netifs (all local IPs).
1247 Added option to limit loopback packets for each netifs.
1251 2009-08-12 Kieran Mansley
1252 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1253 out of window or out of order properly
1255 2009-08-12 Kieran Mansley
1256 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1258 2009-07-28 Simon Goldschmidt
1259 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1261 2009-07-27 Kieran Mansley
1262 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1264 2009-07-09 Kieran Mansley
1265 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1266 recv_avail and don't increment counters until message successfully
1269 2009-06-25 Kieran Mansley
1270 * api_msg.c api.h: BUG26722: initialise netconn write variables
1273 2009-06-25 Kieran Mansley
1274 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1276 2009-06-25 Kieran Mansley
1277 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1278 simultaneous close behaviour, and make snd_nxt have the same meaning
1281 2009-05-12 Simon Goldschmidt
1282 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1283 arp_table / uses etharp_query" by adding etharp_gratuitous()
1285 2009-05-12 Simon Goldschmidt
1286 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1287 to the IP header (used by igmp_ip_output_if)
1289 2009-05-06 Simon Goldschmidt
1290 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1291 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1293 2009-05-05 Simon Goldschmidt
1294 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1297 2009-05-04 Simon Goldschmidt
1298 * init.c: snmp was not initialized in lwip_init()
1300 2009-05-04 Frédéric Bernon
1301 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1303 2009-05-03 Simon Goldschmidt
1304 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1305 (and unsent->next == NULL)
1307 2009-05-02 Simon Goldschmidt
1308 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1309 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1311 2009-05-02 Simon Goldschmidt
1312 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1314 2009-05-01 Simon Goldschmidt
1315 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1317 2009-05-01 Simon Goldschmidt
1318 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1320 2009-04-29 Frédéric Bernon
1321 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1322 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1323 of broadcast packets even when this option wasn't set. Port maintainers
1324 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1325 If you want this option also filter broadcast on recv operations, you also
1326 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1328 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1329 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1330 DHCP/AUTOIP cooperation
1332 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1333 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1334 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1335 right place in tcp_output and tcp_rexmit).
1337 2009-04-25 Simon Goldschmidt
1338 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1339 when debugging": memp_sizes contained the wrong sizes (including sanity
1340 regions); memp pools for MEM_USE_POOLS were too small
1342 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1343 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1344 behavior, with with ip address string not ended by a '\0', a space or a
1347 2009-04-19 Simon Goldschmidt
1348 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1349 pcb->err is called, not pcb->connected (with an error code).
1351 2009-04-19 Simon Goldschmidt
1352 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1353 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1355 2009-04-19 Simon Goldschmidt
1356 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1357 in the header pbuf, not the data pbuf)
1359 2009-04-18 Simon Goldschmidt
1360 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1362 2009-04-15 Simon Goldschmidt
1363 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1365 2009-04-15 Simon Goldschmidt
1366 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1368 2009-04-15 Simon Goldschmidt
1369 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1370 ip_hinted_output() (for smaller code mainly)
1372 2009-04-15 Simon Goldschmidt
1373 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1375 2009-04-15 Simon Goldschmidt
1376 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1377 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1378 is big enough in dhcp_start
1380 2009-04-15 Simon Goldschmidt
1381 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1383 2009-04-15 Simon Goldschmidt
1384 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1386 2009-04-15 Simon Goldschmidt
1387 * sockets.c: bug #26121: set_errno can be overridden
1389 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1390 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1393 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1394 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1397 2009-03-31 Kieran Mansley
1398 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1399 updates are calculated and sent (BUG20515)
1401 * tcp_in.c: cope with SYN packets received during established states,
1402 and retransmission of initial SYN.
1404 * tcp_out.c: set push bit correctly when tcp segments are merged
1406 2009-03-27 Kieran Mansley
1407 * tcp_out.c set window correctly on probes (correcting change made
1410 2009-03-26 Kieran Mansley
1411 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1412 connections where no reset required (bug #25622)
1414 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1417 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1418 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1419 too small depending on MEM_ALIGNMENT
1421 2009-02-16 Simon Goldschmidt
1422 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1423 converted size argument of netconn_write to 'size_t'
1425 2009-02-16 Simon Goldschmidt
1426 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1427 by moving accept callback function pointer to TCP_PCB_COMMON
1429 2009-02-12 Simon Goldschmidt
1430 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1433 2009-02-11 Simon Goldschmidt
1434 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1436 2009-02-11 Simon Goldschmidt
1437 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1438 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1440 2009-02-10 Simon Goldschmidt
1441 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1442 Accepts_pending is decrease on a corresponding listen pcb when a connection
1443 in state SYN_RCVD is close.
1445 2009-01-28 Jonathan Larmour
1446 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1449 2008-12-19 Simon Goldschmidt
1450 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1452 2008-12-10 Tamas Somogyi, Frédéric Bernon
1453 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1454 port uses deleted netbuf.
1456 2008-10-18 Simon Goldschmidt
1457 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1460 2008-10-15 Simon Goldschmidt
1461 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1462 by packing the struct ip_reass_helper.
1464 2008-10-03 David Woodhouse, Jonathan Larmour
1465 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1467 2008-10-02 Jonathan Larmour
1468 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1469 padding is included.
1471 2008-09-30 Jonathan Larmour
1472 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1473 assertion check that addrlen isn't NULL.
1475 2008-09-30 Jonathan Larmour
1476 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1478 2008-08-26 Simon Goldschmidt
1479 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1480 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1482 2008-08-14 Simon Goldschmidt
1483 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1484 tcp_close returns != ERR_OK)
1486 2008-07-08 Frédéric Bernon
1487 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1488 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1490 2008-06-24 Jonathan Larmour
1491 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1492 if tcp_seg_copy fails.
1494 2008-06-17 Simon Goldschmidt
1495 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1496 and created defines for swapping bytes and folding u32 to u16.
1498 2008-05-30 Kieran Mansley
1499 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1500 rather than rcv_ann_wnd when deciding if packets are in-window.
1501 Contributed by <arasmussen@consultant.datasys.swri.edu>
1503 2008-05-30 Kieran Mansley
1504 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1505 passing as function pointers when MEM_LIBC_MALLOC is defined.
1507 2008-05-09 Jonathan Larmour
1508 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1509 stop it being treated as a fatal error.
1511 2008-04-15 Simon Goldschmidt
1512 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1515 2008-03-27 Simon Goldschmidt
1516 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1517 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1518 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1519 or heap memory from interrupt context
1521 2008-03-26 Simon Goldschmidt
1522 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1523 host sent a zero mss as TCP option.
1530 2008-03-10 Jonathan Larmour
1531 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1532 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1534 2008-01-22 Frédéric Bernon
1535 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1536 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1538 2008-01-14 Frédéric Bernon
1539 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1540 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1541 tcp_recv callback (see rawapi.txt).
1543 2008-01-14 Frédéric Bernon, Marc Chaland
1544 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1546 2008-01-12 Frédéric Bernon
1547 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1548 netconn::sem per netconn::op_completed like suggested for the task #7490
1549 "Add return value to sys_mbox_post".
1551 2008-01-12 Frédéric Bernon
1552 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1553 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1554 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1556 2008-01-10 Frédéric Bernon
1557 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1558 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1559 "blocking" ("block" parameter = 1).
1561 2008-01-10 Frédéric Bernon
1562 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1563 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1564 "Add return value to sys_mbox_post".
1566 2008-01-05 Frédéric Bernon
1567 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1568 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1569 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1570 indicate the number of pointers query by the mailbox. There is three defines
1571 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1572 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1573 parameter in your implementation, but to ignore it to keep the previous behavior.
1574 The new sys_mbox_trypost function return a value to know if the mailbox is
1575 full or if the message is posted. Take a look to sys_arch.txt for more details.
1576 This new function is used in tcpip_input (so, can be called in an interrupt
1577 context since the function is not blocking), and in recv_udp and recv_raw.
1579 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1580 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1581 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1582 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1583 documentation in the rawapi.txt file.
1585 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1586 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1588 2007-12-31 Frédéric Bernon, Luca Ceresoli
1589 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1590 in autoip". The change in etharp_raw could be removed, since all calls to
1591 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1592 wrong in the future.
1594 2007-12-30 Frédéric Bernon, Tom Evans
1595 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1596 Filtering" reported by Tom Evans.
1598 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1599 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1600 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1601 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1602 keep accepting new connections.
1604 2007-12-13 Frédéric Bernon
1605 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1606 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1608 2007-12-12 Frédéric Bernon
1609 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1610 are the one which have ram usage.
1612 2007-12-05 Frédéric Bernon
1613 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1614 set of variables (=0) or a local one (=1). In this last case, your port should
1615 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1616 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1618 2007-12-03 Simon Goldschmidt
1619 * ip.c: ip_input: check if a packet is for inp first before checking all other
1620 netifs on netif_list (speeds up packet receiving in most cases)
1622 2007-11-30 Simon Goldschmidt
1623 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1624 UDP: move a (connected) pcb selected for input to the front of the list of
1625 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1628 2007-11-28 Simon Goldschmidt
1629 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1631 2007-11-25 Simon Goldschmidt
1632 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1635 2007-11-24 Simon Goldschmidt
1636 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1637 to the new file netdb.c; included lwip_getaddrinfo.
1639 2007-11-21 Simon Goldschmidt
1640 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1641 based on the MTU of the netif used to send. Enabled by default. Disable by
1642 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1644 2007-11-19 Frédéric Bernon
1645 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1646 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1647 copy dns payload to parse the response), return an error if there is no place
1648 for a new query, and fix some minor problems.
1650 2007-11-16 Simon Goldschmidt
1651 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1652 removed files: core/inet.c, core/inet6.c
1653 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1654 inet and chksum part; changed includes in all lwIP files as appropriate
1656 2007-11-16 Simon Goldschmidt
1657 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1658 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1659 (gethostbyname/gethostbyname_r).
1661 2007-11-15 Jim Pettinato, Frédéric Bernon
1662 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1663 requests with RAW api interface. Initialization is done in lwip_init() with
1664 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1665 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1666 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1667 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1668 list with points to improve.
1670 2007-11-06 Simon Goldschmidt
1671 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1672 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1673 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1675 2007-11-06 Simon Goldschmidt
1676 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1677 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1678 implementation from netconn api applications.
1680 2007-11-03 Frédéric Bernon
1681 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1682 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1683 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1684 it. This is a first release which have to be improve for TCP. Note it used the
1685 netconn::recv_avail which need to be more "thread-safe" (note there is already
1686 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1688 2007-11-01 Frédéric Bernon, Marc Chaland
1689 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1690 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1691 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1692 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1693 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1695 2007-10-24 Frédéric Bernon
1696 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1697 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1698 some code (like we have talk in "patch #5919 : Create compile switch to remove
1699 select code"), but it could be done later.
1701 2007-10-08 Simon Goldschmidt
1702 * many files: Changed initialization: many init functions are not needed any
1703 more since we now rely on the compiler initializing global and static
1706 2007-10-06 Simon Goldschmidt
1707 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1708 to enqueue the received pbufs so that multiple packets can be reassembled
1709 simultaneously and no static reassembly buffer is needed.
1711 2007-10-05 Simon Goldschmidt
1712 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1713 all netifs (or ports) can use it.
1715 2007-10-05 Frédéric Bernon
1716 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1717 common function to reduce a little bit the footprint (for all functions using
1718 only the "netif" parameter).
1720 2007-10-03 Frédéric Bernon
1721 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1722 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1723 a little bit the footprint (for all functions using only the "netif" parameter).
1725 2007-09-15 Frédéric Bernon
1726 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1727 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1728 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1729 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1731 2007-09-10 Frédéric Bernon
1732 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1733 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1734 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1735 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1736 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1737 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1738 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1739 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1740 when it's queried (any direct call to "sysuptime" is changed by a call to
1741 snmp_get_sysuptime).
1743 2007-09-09 Frédéric Bernon, Bill Florac
1744 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1745 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1746 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1747 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1748 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1749 the next query message to receive the matching multicast streams).
1751 2007-09-08 Frédéric Bernon
1752 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1753 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1754 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1755 Enable to access to these fields with LWIP_TCP=0.
1757 2007-09-05 Frédéric Bernon
1758 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1759 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1760 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1761 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1762 help to reduce footprint, and to reduce "visibility" on the Internet.
1764 2007-09-05 Frédéric Bernon, Bill Florac
1765 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1766 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1767 parameters have to be provided: a task name, and a task stack size. For this
1768 one, since it's platform dependant, you could define the best one for you in
1769 your lwipopts.h. For port maintainers, you can just add these new parameters
1770 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1773 2007-09-05 Frédéric Bernon
1774 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1775 inside init.c for task #7142 "Sanity check user-configurable values".
1777 2007-09-04 Frédéric Bernon, Bill Florac
1778 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1779 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1780 value). It will avoid potential fragmentation problems, use a counter to know
1781 how many times a group is used on an netif, and free it when all applications
1782 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1783 check if LWIP_IGMP!=0).
1785 2007-09-03 Frédéric Bernon
1786 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1787 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1788 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1789 and/or the "interface" field (for netconn layer), for join/leave operations.
1790 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1791 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1793 2007-08-30 Frédéric Bernon
1794 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1795 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1796 with other API (application based on raw API, or future "socket2" API). Ports
1797 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1799 2007-08-30 Frédéric Bernon, Jonathan Larmour
1800 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1801 user-configurable values".
1803 2007-08-29 Frédéric Bernon
1804 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1805 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1806 spirit than the others modules. Modify some IGMP debug traces.
1808 2007-08-29 Frédéric Bernon
1809 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1810 Add lwip_init function to regroup all modules initializations, and to provide
1811 a place to add code for task #7142 "Sanity check user-configurable values".
1812 Ports maintainers should remove direct initializations calls from their code,
1813 and add init.c in their makefiles. Note that lwip_init() function is called
1814 inside tcpip_init, but can also be used by raw api users since all calls are
1815 disabled when matching options are disabled. Also note that their is new options
1816 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1818 2007-08-26 Marc Boucher
1819 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1820 since they can under certain circumstances be called with an invalid conn
1821 pointer after the connection has been closed (and conn has been freed).
1823 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1824 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1825 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1827 2007-08-22 Frédéric Bernon
1828 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1829 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1831 2007-08-22 Frédéric Bernon
1832 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1833 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1834 name is tcpip_input (we keep the name of 1.2.0 function).
1836 2007-08-17 Jared Grubb
1837 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1838 settings into new memp_std.h and optional user file lwippools.h. This adds
1839 more dynamic mempools, and allows the user to create an arbitrary number of
1840 mempools for mem_malloc.
1842 2007-08-16 Marc Boucher
1843 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1844 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1845 close the connection.
1847 2007-08-16 Marc Boucher
1848 * sockets.c: lwip_accept(): check netconn_peer() error return.
1850 2007-08-16 Marc Boucher
1851 * mem.c, mem.h: Added mem_calloc().
1853 2007-08-16 Marc Boucher
1854 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1855 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1856 and starving other message types.
1857 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1859 2007-08-16 Marc Boucher
1860 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1861 type and flgs (later renamed to flags).
1862 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1863 Improved lwip_recvfrom(). TCP push now propagated.
1865 2007-08-16 Marc Boucher
1866 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1869 2007-08-16 Marc Boucher
1870 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1871 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1872 Added PPPoE support and various PPP improvements.
1874 2007-07-25 Simon Goldschmidt
1875 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1876 making netbuf_copy_partial use this function.
1878 2007-07-25 Simon Goldschmidt
1879 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1880 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1883 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1884 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1885 a link callback in the netif struct, and functions to handle it. Be carefull
1886 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1887 if you want to be sure to be compatible with future changes...
1889 2007-06-30 Frédéric Bernon
1890 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1892 2007-06-21 Simon Goldschmidt
1893 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1894 LWIP_AUTOIP =0 and =1 to remove redundant code.
1896 2007-06-21 Simon Goldschmidt
1897 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1898 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1899 heap. This both prevents memory fragmentation and gives a higher speed
1900 at the cost of more memory consumption. Turned off by default.
1902 2007-06-21 Simon Goldschmidt
1903 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1904 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1905 int to be able to send a bigger buffer than 64K with one time (mainly
1906 used from lwip_send).
1908 2007-06-21 Simon Goldschmidt
1909 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1910 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1912 2007-06-21 Simon Goldschmidt
1913 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1914 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1915 changes on low memory or empty send-buffer.
1917 2007-06-18 Simon Goldschmidt
1918 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1919 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1920 used for ethernet and struct eth_addr already had a defined length of 6).
1922 2007-06-17 Simon Goldschmidt
1923 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1924 to disable UDP checksum generation on transmit.
1926 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1927 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1928 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1929 this macro to check "conn" parameter in api_msg.c functions.
1931 2007-06-11 Simon Goldschmidt
1932 * sockets.c, sockets.h: Added UDP lite support for sockets
1934 2007-06-10 Simon Goldschmidt
1935 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1936 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1939 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1940 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1941 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1942 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1943 (see TODO mark in the source code).
1945 2007-06-09 Simon Goldschmidt
1946 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1947 etharp_output() to match netif->output so etharp_output() can be used
1948 directly as netif->output to save one function call.
1950 2007-06-08 Simon Goldschmidt
1951 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1952 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1953 added initialization of those to ethernetif, slipif and loopif.
1955 2007-05-18 Simon Goldschmidt
1956 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1957 (defaulting to off for now) that can be set to 0 to send fragmented
1958 packets by passing PBUF_REFs down the stack.
1960 2007-05-23 Frédéric Bernon
1961 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1962 connections, such present in patch #5959.
1964 2007-05-23 Frédéric Bernon
1965 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1966 code in only one part...
1968 2007-05-18 Simon Goldschmidt
1969 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1970 elements to overflow. This is achieved by adding some bytes before and after
1971 each pool element (increasing their size, of course), filling them with a
1972 prominent value and checking them on freeing the element.
1973 Set it to 2 to also check every element in every pool each time memp_malloc()
1974 or memp_free() is called (slower but more helpful).
1976 2007-05-10 Simon Goldschmidt
1977 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1978 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1981 2007-05-11 Frédéric Bernon
1982 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1983 Include a function pointer instead of a table index in the message to reduce
1984 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1985 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1987 2007-05-10 Simon Goldschmidt
1988 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1989 \ extern "C" {' in all header files. Now you can write your application using
1990 the lwIP stack in C++ and simply #include the core files. Note I have left
1991 out the netif/ppp/*h header files for now, since I don't know which files are
1992 included by applications and which are for internal use only.
1994 2007-05-09 Simon Goldschmidt
1995 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1996 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1997 situations where some compilers might inline the copy and save a function
1998 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
2000 2007-05-08 Simon Goldschmidt
2001 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
2002 to be overriden in case the C-library malloc implementation is not protected
2003 against concurrent access.
2005 2007-05-04 Simon Goldschmidt (Atte Kojo)
2006 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
2007 multiple packets to the same host.
2009 2007-05-04 Frédéric Bernon, Jonathan Larmour
2010 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
2011 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
2012 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
2013 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
2014 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
2015 these fields are now renamed "addr" & "port".
2017 2007-04-11 Jonathan Larmour
2018 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
2019 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
2020 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
2021 by the port in sys_arch.h if desired.
2023 2007-04-06 Frédéric Bernon, Simon Goldschmidt
2024 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
2025 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
2026 clients, using new functions from netifapi.h. Disable as default (no port change to do).
2028 2007-04-05 Frédéric Bernon
2029 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
2031 2007-04-04 Simon Goldschmidt
2032 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
2033 use this for and architecture-independent form to tell the compiler you intentionally
2034 are not using this variable. Can be overriden in cc.h.
2036 2007-03-28 Frédéric Bernon
2037 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
2038 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
2039 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
2040 It will be used by DHCP to register a client hostname, but can also be use when you call
2043 2007-03-28 Frédéric Bernon
2044 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2045 initialize a network interface's flag with. It tell this interface is an ethernet
2046 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2047 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2049 2007-03-26 Frédéric Bernon, Jonathan Larmour
2050 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2051 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2052 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2053 is done in tcpip_init function.
2055 2007-03-22 Frédéric Bernon
2056 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2057 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2058 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2059 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2060 but never used. Fix msg_in.c with the correct #if test for a stat display.
2062 2007-03-21 Kieran Mansley
2063 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2064 Provides callback on netif up/down state change.
2066 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2067 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2068 ip.c, netif.h, tcpip.c, opt.h:
2069 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2070 filter per all network interfaces. Declare a new function in netif to enable to
2071 control the MAC filter (to reduce lwIP traffic processing).
2073 2007-03-11 Frédéric Bernon
2074 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2075 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2076 unless you know what you're doing (default are RFC1122 compliant). Note
2077 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2079 2007-03-08 Frédéric Bernon
2080 * tcp.h: Keepalive values can be configured at compile time, but don't change
2081 this unless you know what you're doing (default are RFC1122 compliant).
2083 2007-03-08 Frédéric Bernon
2084 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2085 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2086 on UDP sockets/netconn.
2088 2007-03-08 Simon Goldschmidt
2089 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2091 2007-03-06 Frédéric Bernon
2092 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2093 Implement SO_RCVTIMEO on UDP sockets/netconn.
2095 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2096 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2097 on the stack and remove the API msg type from memp
2099 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2100 * sockets.h, sockets.c: Move socket initialization to new
2101 lwip_socket_init() function.
2102 NOTE: this changes the API with ports. Ports will have to be
2103 updated to call lwip_socket_init() now.
2105 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2106 * api_lib.c: Use memcpy in netbuf_copy_partial.
2111 2008-03-17 Frédéric Bernon, Ed Kerekes
2112 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2113 some problems to fill the IP header on some targets, use now the
2114 ip.h macros to do it).
2116 2008-03-13 Frédéric Bernon
2117 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2118 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2119 TCP connection caused a crash. Note that using (lwip_)recvfrom
2120 like this is a bit slow and that using (lwip)getpeername is the
2121 good lwip way to do it (so, using recv is faster on tcp sockets).
2123 2008-03-12 Frédéric Bernon, Jonathan Larmour
2124 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2125 recv_raw() does not consume data", and the ping sample (with
2126 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2127 returned the IP payload, without the IP header).
2129 2008-03-04 Jonathan Larmour
2130 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2131 and/or warnings on some systems where mem_size_t and size_t differ.
2132 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2134 2008-03-04 Kieran Mansley (contributions by others)
2135 * Numerous small compiler error/warning fixes from contributions to
2136 mailing list after 1.3.0 release candidate made.
2138 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2139 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2141 2008-01-15 Kieran Mansley
2142 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2143 prevented from sending by a small send window, not just a zero
2146 2008-01-09 Jonathan Larmour
2147 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2148 conflict with Linux system headers.
2150 2008-01-06 Jonathan Larmour
2151 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2152 address entirely on receiving a DHCPNAK, and restarting discovery.
2154 2007-12-21 Simon Goldschmidt
2155 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2156 is not protected" by using new macros for interlocked access to modify/test
2157 netconn->recv_avail.
2159 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2160 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2162 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2163 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2164 of silly window avoidance and prevent lwIP from shrinking the window)
2166 2007-12-04 Simon Goldschmidt
2167 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2168 data packet was lost): add assert that all segment lists are empty in
2169 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2170 state from LAST_ACK in tcp_process
2172 2007-12-02 Simon Goldschmidt
2173 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2174 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2175 has to be set to 0 in lwipopts.h
2177 2007-12-02 Simon Goldschmidt
2178 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2179 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2180 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2181 This is a fix for thread-safety and allocates all items needed for a netconn
2182 when the netconn is created.
2184 2007-11-30 Simon Goldschmidt
2185 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2186 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2187 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2188 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2190 2007-11-27 Simon Goldschmidt
2191 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2192 letting ip_route only use netifs that are up.
2194 2007-11-27 Simon Goldschmidt
2195 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2196 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2197 sockets block most operations once they have seen a fatal error.
2199 2007-11-27 Simon Goldschmidt
2200 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2201 netif to send as an argument (to be able to send on netifs that are down).
2203 2007-11-26 Simon Goldschmidt
2204 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2207 2007-11-21 Simon Goldschmidt
2208 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2209 Fixed the nagle algorithm; nagle now also works for all raw API applications
2210 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2212 2007-11-12 Frédéric Bernon
2213 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2214 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2215 context in do_getaddr.
2217 2007-11-10 Simon Goldschmidt
2218 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2219 happen any time). Now the packet simply isn't enqueued when out of memory.
2221 2007-11-01 Simon Goldschmidt
2222 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2223 TCP_MSS if that is smaller) as long as no MSS option is received from the
2226 2007-11-01 Simon Goldschmidt
2227 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2228 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2229 sending our configured TCP_MSS instead of the one received).
2231 2007-11-01 Simon Goldschmidt
2232 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2233 calculated based on the configured TCP_MSS, not on the MSS option received
2236 2007-10-09 Simon Goldschmidt
2237 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2238 short and also was generated wrong if checksum coverage != tot_len;
2239 receive: checksum was calculated wrong if checksum coverage != tot_len
2241 2007-10-08 Simon Goldschmidt
2242 * mem.c: lfree was not updated in mem_realloc!
2244 2007-10-07 Frédéric Bernon
2245 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2246 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2247 this change cause an API breakage for netconn_addr, since a parameter
2248 type change. Any compiler should cause an error without any changes in
2249 yours netconn_peer calls (so, it can't be a "silent change"). It also
2250 reduce a little bit the footprint for socket layer (lwip_getpeername &
2251 lwip_getsockname use now a common lwip_getaddrname function since
2252 netconn_peer & netconn_addr have the same parameters).
2254 2007-09-20 Simon Goldschmidt
2255 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2256 by checking tcp_tw_pcbs also
2258 2007-09-19 Simon Goldschmidt
2259 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2261 2007-09-15 Mike Kleshov
2262 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2264 2007-09-06 Frédéric Bernon
2265 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2266 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2267 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2268 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2270 2007-08-30 Frédéric Bernon
2271 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2272 and fix some coding style.
2274 2007-08-28 Frédéric Bernon
2275 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2276 kind of packets. These packets are considered like Ethernet packets (payload
2277 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2278 are considered like IP packets (payload pointing to iphdr).
2280 2007-08-27 Frédéric Bernon
2281 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2282 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2283 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2285 2007-08-24 Kieran Mansley
2286 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2287 compiler (Paradigm C++)
2289 2007-08-09 Frédéric Bernon, Bill Florac
2290 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2291 Introduce IGMP_STATS to centralize statistics management.
2293 2007-08-09 Frédéric Bernon, Bill Florac
2294 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2295 packet on a udp pcb binded on an netif's IP address, and not on "any".
2297 2007-08-09 Frédéric Bernon, Bill Florac
2298 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2299 This is mainly on using lookup/lookfor, and some coding styles...
2301 2007-07-26 Frédéric Bernon (and "thedoctor")
2302 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2304 2007-07-25 Simon Goldschmidt
2305 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2306 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2307 (tcp_output is called again later from tcp timers).
2309 2007-07-25 Simon Goldschmidt
2310 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2311 copy_from_pbuf, which illegally modified the given pbuf.
2313 2007-07-25 Simon Goldschmidt
2314 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2315 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2317 2007-07-24 Simon Goldschmidt
2318 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2319 correct state (must be CLOSED).
2321 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2322 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2323 allocation. It now returns NULL.
2325 2007-07-13 Frédéric Bernon
2326 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2329 2007-07-13 Frédéric Bernon
2330 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2331 because current code doesn't follow rawapi.txt documentation.
2333 2007-07-13 Kieran Mansley
2334 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2335 out of sequence processing of received packets
2337 2007-07-03 Simon Goldschmidt
2338 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2339 assumption is made that this pbuf is in one piece (i.e. not chained). These
2340 assumptions clash with the possibility of converting to fully pool-based
2341 pbuf implementations, where PBUF_RAM pbufs might be chained.
2343 2007-07-03 Simon Goldschmidt
2344 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2345 when closing tcp netconns: removed conn->sem, less context switches when
2346 closing, both netconn_close and netconn_delete should safely close tcp
2349 2007-07-02 Simon Goldschmidt
2350 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2351 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2352 to cache ARP table indices with each pcb instead of single-entry cache for
2355 2007-07-02 Simon Goldschmidt
2356 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2357 warnings when assigning to smaller types.
2359 2007-06-28 Simon Goldschmidt
2360 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2362 2007-06-28 Simon Goldschmidt
2363 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2364 a segment contained chained pbufs)
2366 2007-06-28 Frédéric Bernon
2367 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2368 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2369 possible to define this macro in your own lwipopts.h to always use C library's
2370 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2372 2007-06-28 Frédéric Bernon
2373 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2374 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2375 in api_lib/api_msg (use pointers and not type with table, etc...)
2377 2007-06-26 Simon Goldschmidt
2378 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2380 2007-06-25 Simon Goldschmidt
2381 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2382 for udp packets with no matching pcb.
2384 2007-06-25 Simon Goldschmidt
2385 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2386 could get udp input packets if the remote side matched.
2388 2007-06-13 Simon Goldschmidt
2389 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2390 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2392 2007-06-13 Simon Goldschmidt
2393 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2394 -> netconn_new_..() does not allocate a new connection for unsupported
2397 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2398 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2399 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2401 2007-06-13 Frédéric Bernon, Matthias Weisser
2402 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2403 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2404 some macro names collision with some OS macros.
2406 2007-06-11 Simon Goldschmidt
2407 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2408 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2409 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2412 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2413 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2414 where TCP flags wasn't initialized in tcp_keepalive.
2416 2007-06-03 Simon Goldschmidt
2417 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2418 registered, p->payload was modified without modifying p->len if sending
2419 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2421 2007-06-03 Simon Goldschmidt
2422 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2423 re-used the input pbuf even if that didn't have enough space to include the
2424 link headers. Now the space is tested and a new pbuf is allocated for the
2425 echo response packet if the echo request pbuf isn't big enough.
2427 2007-06-01 Simon Goldschmidt
2428 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2430 2007-05-23 Frédéric Bernon
2431 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2432 allocated by do_listen if success) and netconn_accept errors handling. In
2433 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2434 by ASSERT, except for netconn_delete.
2436 2007-05-23 Frédéric Bernon
2437 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2438 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2439 directly close the recvmbox).
2441 2007-05-22 Simon Goldschmidt
2442 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2443 bound but unconnected (and non-listening) tcp_pcbs.
2445 2007-05-22 Frédéric Bernon
2446 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2447 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2448 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2449 like "sys_timeout" in their application threads.
2451 2007-05-22 Frédéric Bernon
2452 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2453 which parameters are used by which do_xxx function, and to avoid "misusing"
2454 parameters (patch #5938).
2456 2007-05-22 Simon Goldschmidt
2457 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2458 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2459 is only 8 bits wide. This affects the api, as there, the protocol was
2462 2007-05-18 Simon Goldschmidt
2463 * memp.c: addition to patch #5913: smaller pointer was returned but
2464 memp_memory was the same size -> did not save memory.
2466 2007-05-16 Simon Goldschmidt
2467 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2470 2007-05-16 Simon Goldschmidt
2471 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2472 as the one of the netif used for sending to prevent sending from old
2473 addresses after a netif address gets changed (partly fixes bug #3168).
2475 2007-05-16 Frédéric Bernon
2476 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2477 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2478 tcpip_init) because we have to be sure that network interfaces are already
2479 added (mac filter is updated only in igmp_init for the moment).
2481 2007-05-16 Simon Goldschmidt
2482 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2483 into sys_arch_sem_wait calls to prevent timers from running while waiting
2484 for the heap. This fixes bug #19167.
2486 2007-05-13 Simon Goldschmidt
2487 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2488 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2491 2007-05-07 Simon Goldschmidt
2492 * mem.c: Another attempt to fix bug #17922.
2494 2007-05-04 Simon Goldschmidt
2495 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2496 implementation so that it can be reused (don't allocate the target
2497 pbuf inside pbuf_copy()).
2499 2007-05-04 Simon Goldschmidt
2500 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2501 to save a little RAM (next pointer of memp is not used while not in pool).
2504 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2507 2007-04-23 Simon Goldschmidt
2508 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2509 in NULL reference for incoming TCP packets". Loopif has to be configured
2510 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2511 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2512 putting packets on a list that is fed to the stack by calling loopif_poll()
2513 (single-thread / NO_SYS / polling environment where e.g.
2514 netif->input() = ip_input).
2516 2007-04-17 Jonathan Larmour
2517 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2518 the difference between two u16_t's.
2519 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2520 MEMP_NUM_NETCONN in sockets.c right now.
2522 2007-04-12 Jonathan Larmour
2523 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2525 2007-04-12 Kieran Mansley
2526 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2527 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2529 2007-04-11 Simon Goldschmidt
2530 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2531 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2532 pbuf.c: removed functions no needed any more (by etharp).
2534 2007-04-11 Kieran Mansley
2535 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2536 "Constant is long" warnings with 16bit compilers. Contributed by
2537 avatar@mmlab.cse.yzu.edu.tw
2539 2007-04-05 Frédéric Bernon, Jonathan Larmour
2540 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2541 the mailbox is active". Now, the post is only done during a connect, and do_send,
2542 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2544 2007-04-03 Frédéric Bernon
2545 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2546 packets. See patch #5834.
2548 2007-03-30 Frédéric Bernon
2549 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2550 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2552 2007-03-30 Frédéric Bernon
2553 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2554 others environment defines (these were too "generic").
2556 2007-03-28 Frédéric Bernon
2557 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2558 result and can cause a crash. lwip_send now check netbuf_ref result.
2560 2007-03-28 Simon Goldschmidt
2561 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2562 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2563 defined. This is the way it should have been already (looking at
2566 2007-03-28 Kieran Mansley
2567 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2568 IP and TCP headers *and* physical link headers
2570 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2571 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2572 to send some garbage. It is not a definitive solution, but the patch does solve
2573 the problem for most cases.
2575 2007-03-22 Frédéric Bernon
2576 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2578 2007-03-22 Frédéric Bernon
2579 * api_lib.c: somes resources couldn't be freed if there was errors during
2580 netconn_new_with_proto_and_callback.
2582 2007-03-22 Frédéric Bernon
2583 * ethernetif.c: update netif->input calls to check return value. In older ports,
2584 it's a good idea to upgrade them, even if before, there could be another problem
2585 (access to an uninitialized mailbox).
2587 2007-03-21 Simon Goldschmidt
2588 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2589 by casting to unsigned).
2591 2007-03-21 Frédéric Bernon
2592 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2593 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2594 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2595 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2596 faster and more reliable communication between api_lib and tcpip.
2598 2007-03-21 Frédéric Bernon
2599 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2601 2007-03-21 Frédéric Bernon
2602 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2604 2007-03-21 Kieran Mansley
2605 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2608 2007-03-21 Kieran Mansley
2609 * Fix all uses of pbuf_header to check the return value. In some
2610 cases just assert if it fails as I'm not sure how to fix them, but
2611 this is no worse than before when they would carry on regardless
2614 2007-03-21 Kieran Mansley
2615 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2616 comment out missing header include in icmp.c
2618 2007-03-20 Frédéric Bernon
2619 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2620 synchronized with memp.h.
2622 2007-03-20 Frédéric Bernon
2623 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2624 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2625 network interfaces. Also fix a compiler warning.
2627 2007-03-20 Kieran Mansley
2628 * udp.c: Only try and use pbuf_header() to make space for headers if
2629 not a ROM or REF pbuf.
2631 2007-03-19 Frédéric Bernon
2632 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2635 2007-03-19 Frédéric Bernon
2636 * Remove unimplemented "memp_realloc" function from memp.h.
2638 2007-03-11 Simon Goldschmidt
2639 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2642 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2643 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2644 (missing `const' qualifier in socket functions), to get more compatible to
2645 standard POSIX sockets.
2647 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2648 * sockets.c: Add asserts inside bind, connect and sendto to check input
2649 parameters. Remove excessive set_errno() calls after get_socket(), because
2650 errno is set inside of get_socket(). Move last sock_set_errno() inside
2653 2007-03-09 Simon Goldschmidt
2654 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2655 was allocated too small.
2657 2007-03-06 Simon Goldschmidt
2658 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2659 the stack from concurrent access.
2661 2007-03-06 Frédéric Bernon, Dmitry Potapov
2662 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2663 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2665 2007-03-06 Simon Goldschmidt
2666 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2667 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2669 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2670 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2671 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2672 Allow to do ARP processing for incoming packets inside tcpip_thread
2673 (protecting ARP layer against concurrent access). You can also disable
2674 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2675 Older ports have to use tcpip_ethinput.
2677 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2678 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2679 from pointer target type"
2681 2007-03-05 Frédéric Bernon
2682 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2683 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2685 2007-03-04 Frédéric Bernon
2686 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2689 2007-03-04 Frédéric Bernon
2690 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2692 The api_msg struct stay on the stack (not moved to netconn struct).
2694 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2695 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2696 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2697 Also fixed cast warning in pbuf_alloc()
2699 2007-03-04 Simon Goldschmidt
2700 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2701 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2703 2007-03-03 Frédéric Bernon
2704 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2705 It is static, and never used in udp.c except udp_init().
2707 2007-03-02 Simon Goldschmidt
2708 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2709 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2710 initialized before tcpip_thread is running (e.g. before OS is started)
2712 2007-03-02 Frédéric Bernon
2713 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2716 2007-02-28 Kieran Mansley
2717 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2718 outside the region of the pbuf by pbuf_header()
2720 2007-02-28 Kieran Mansley
2721 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2722 when supplied timeout is also non-zero
2726 2006-12-05 Leon Woestenberg
2727 * CHANGELOG: Mention STABLE-1.2.0 release.
2731 2006-12-01 Christiaan Simons
2732 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2733 Note this is a workaround. Currently I have no other options left.
2735 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2736 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2737 to include/lwip/opt.h.
2738 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2739 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2740 * opt.h: Add above new options.
2742 2006-08-18 Christiaan Simons
2743 * tcp_{in,out}.c: added SNMP counters.
2744 * ipv4/ip.c: added SNMP counters.
2745 * ipv4/ip_frag.c: added SNMP counters.
2747 2006-08-08 Christiaan Simons
2748 * etharp.{c,h}: added etharp_find_addr() to read
2749 (stable) ethernet/IP address pair from ARP table
2751 2006-07-14 Christiaan Simons
2752 * mib_structs.c: added
2753 * include/lwip/snmp_structs.h: added
2754 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2756 2006-07-06 Christiaan Simons
2757 * snmp/asn1_{enc,dec}.c added
2759 * snmp/msg_{in,out}.c added
2760 * include/lwip/snmp_asn1.h added
2761 * include/lwip/snmp_msg.h added
2762 * doc/snmp_agent.txt added
2764 2006-03-29 Christiaan Simons
2765 * inet.c, inet.h: Added platform byteswap support.
2766 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2767 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2771 2006-11-30 Christiaan Simons
2772 * dhcp.c: Fixed false triggers of request_timeout.
2774 2006-11-28 Christiaan Simons
2775 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2777 2006-10-11 Christiaan Simons
2778 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2779 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2780 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2781 identifier from 170 to 136 (bug #17574).
2783 2006-10-10 Christiaan Simons
2784 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2786 2006-08-17 Christiaan Simons
2787 * udp.c: Fixed bug #17200, added check for broadcast
2788 destinations for PCBs bound to a unicast address.
2790 2006-08-07 Christiaan Simons
2791 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2793 2006-06-27 Christiaan Simons
2794 * api_msg.c: Applied patch for cold case (bug #11135).
2795 In accept_function() ensure newconn->callback is always initialized.
2797 2006-06-15 Christiaan Simons
2798 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2799 facilitate printing of mem_size_t and u16_t statistics.
2801 2006-06-14 Christiaan Simons
2802 * api_msg.c: Applied patch #5146 to handle allocation failures
2803 in accept() by Kevin Lawson.
2805 2006-05-26 Christiaan Simons
2806 * api_lib.c: Removed conn->sem creation and destruction
2807 from netconn_write() and added sys_sem_new to netconn_new_*.
2811 2006-03-03 Christiaan Simons
2812 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2813 access and added pbuf_alloc() return value checks.
2815 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2816 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2817 now handled by the checksum routine properly.
2819 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2820 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2821 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2823 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2824 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2825 submitted by Mitrani Hiroshi.
2827 2005-12-15 Christiaan Simons
2828 * inet.c: Disabled the added summing routine to preserve code space.
2830 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2831 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2832 Added Curt McDowell's optimized checksumming routine for future
2833 inclusion. Need to create test case for unaliged, aligned, odd,
2834 even length combination of cases on various endianess machines.
2836 2005-12-09 Christiaan Simons
2837 * inet.c: Rewrote standard checksum routine in proper portable C.
2839 2005-11-25 Christiaan Simons
2840 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2841 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2842 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2844 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2845 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2846 routine by Peter Jolasson.
2847 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2849 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2850 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2851 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2853 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2854 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2856 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2857 * udp.c: UDP pcb->recv() was called even when it was NULL.
2861 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2862 * etharp.*: Disabled multiple packets on the ARP queue.
2863 This clashes with TCP queueing.
2865 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2866 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2867 Halved the ARP period, doubled the period counts.
2868 ETHARP_MAX_PENDING now should be at least 2. This prevents
2869 the counter from reaching 0 right away (which would allow
2870 too little time for ARP responses to be received).
2872 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2873 * dhcp.c: Decline messages were not multicast but unicast.
2874 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2875 Do not try hard to insert arbitrary packet's source address,
2876 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2877 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2878 querying an address will see it appear in the cache (DHCP could
2879 suffer from this when a server invalidly gave an in-use address.)
2880 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2881 comparing network addresses (identifiers), not the network masks
2883 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2884 IP address actually belongs to the network of the given interface.
2886 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2887 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2891 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2892 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2893 even if one is already pending, if the rcv_wnd is above a threshold
2894 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2895 delayed ACK in order to open the window if the stack is only receiving data.
2897 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2898 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2900 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2901 * etharp.c: Make sure the first pbuf queued on an ARP entry
2902 is properly ref counted.
2904 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2905 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2906 warnings about comparison.
2907 * pbuf.c: Stopped compiler complaining of empty if statement
2908 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2909 * tcp.c: Stopped compiler complaining of empty if statement
2910 when LWIP_DEBUGF() empty.
2911 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2912 * inet.c: Added a couple of casts to quiet the compiler.
2913 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2915 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2916 * inet.c: Made data types consistent in inet_ntoa().
2917 Added casts for return values of checksum routines, to pacify compiler.
2918 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2919 Small corrections to some debugging statements, to pacify compiler.
2921 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2922 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2923 * ethernetif.c Updated low_level_output() to match prototype for
2924 netif->linkoutput and changed low_level_input() similarly for consistency.
2925 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2926 of raw_recv() in raw.h and so avoid compiler error.
2927 * sockets.c: Added trivial (int) cast to keep compiler happier.
2928 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2934 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2935 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2936 your cc.h file defines this either 1 or 0. If non-defined,
2938 * .c: Added <string.h> and <errno.h> includes where used.
2939 * etharp.c: Made some array indices unsigned.
2941 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2942 * netif.*: Added netif_set_up()/down().
2943 * dhcp.c: Changes to restart program flow.
2945 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2946 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2947 single-pass lookup for different candidates. Should exploit locality.
2949 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2950 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2951 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2952 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2953 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2957 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2958 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2959 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2960 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2961 is to prefix the 14-bit Ethernet headers with two padding bytes.
2963 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2964 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2965 * etharp.c: Fixed the case where the packet that initiates the ARP request
2966 is not queued, and gets lost. Fixed the case where the packets destination
2967 address is already known; we now always queue the packet and perform an ARP
2974 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2975 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2976 * Fixed two possible NULL references in rare cases.
2982 * Fixed DHCP which did not include the IP address in DECLINE messages.
2986 * etharp.c has been hauled over a bit.
2992 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2993 * Packets sent from ARP queue had invalid source hardware address.
2997 * Pass-by ARP requests do now update the cache.
3001 * No longer dependent on ctype.h.
3002 * New socket options.
3003 * Raw IP pcb support.
3009 * Some debug formatters and casts fixed.
3010 * Numereous fixes in PPP.
3014 * DEBUGF now is LWIP_DEBUGF
3015 * pbuf_dechain() has been re-enabled.
3016 * Mentioned the changed use of CVS branches in README.
3022 * Fixed pool pbuf memory leak in pbuf_alloc().
3023 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
3024 Reported by Savin Zlobec.
3026 * PBUF_POOL chains had their tot_len field not set for non-first
3027 pbufs. Fixed in pbuf_alloc().
3031 * Added PPP stack contributed by Marc Boucher
3035 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
3037 * ARP queueuing now queues the latest packet instead of the first.
3038 This is the RFC recommended behaviour, but can be overridden in
3045 * TCP has been fixed to deal with the new use of the pbuf->ref
3048 * DHCP dhcp_inform() crash bug fixed.
3052 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3053 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3054 Implemented by David Haas.
3060 * The packet buffer implementation has been enhanced to support
3061 zero-copy and copy-on-demand for packet buffers which have their
3062 payloads in application-managed memory.
3063 Implemented by David Haas.
3065 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3066 if an outgoing packet can be directly sent on the link, or perform
3067 a copy-on-demand when necessary.
3069 The application can safely assume the packet is sent, and the RAM
3070 is available to the application directly after calling udp_send()
3071 or similar function.
3075 * ARP_QUEUEING should now correctly work for all cases, including
3077 Implemented by Leon Woestenberg.
3081 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3082 to a '0.0.0.0' IP address.
3084 * The packet buffer implementation is changed. The pbuf->ref counter
3085 meaning has changed, and several pbuf functions have been
3086 adapted accordingly.
3088 * netif drivers have to be changed to set the hardware address length field
3089 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3090 See the contrib/ports/c16x cs8900 driver as a driver example.
3092 * netif's have a dhcp field that must be initialized to NULL by the driver.
3093 See the contrib/ports/c16x cs8900 driver as a driver example.
3095 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3096 logged in CVS but have not been explained here.
3098 (0.5.3) Changes since version 0.5.2
3102 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3103 threads because it wasn't protected by semaphores.
3107 * struct ip_addr now packed.
3109 * The name of the time variable in arp.c has been changed to ctime
3110 to avoid conflicts with the time() function.
3112 (0.5.2) Changes since version 0.5.1
3116 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3120 * A bug in tcp_parseopt() could cause the stack to hang because of a
3121 malformed TCP option.
3123 * The address of new connections in the accept() function in the BSD
3124 socket library was not handled correctly.
3126 * pbuf_dechain() did not update the ->tot_len field of the tail.
3128 * Aborted TCP connections were not handled correctly in all
3133 * All protocol header structs are now packed.
3135 * The ->len field in the tcp_seg structure now counts the actual
3136 amount of data, and does not add one for SYN and FIN segments.
3138 (0.5.1) Changes since version 0.5.0
3142 * Possible to run as a user process under Linux.
3144 * Preliminary support for cross platform packed structs.
3146 * ARP timer now implemented.
3150 * TCP output queue length was badly initialized when opening
3153 * TCP delayed ACKs were not sent correctly.
3155 * Explicit initialization of BSS segment variables.
3157 * read() in BSD socket library could drop data.
3159 * Problems with memory alignment.
3161 * Situations when all TCP buffers were used could lead to
3164 * TCP MSS option wasn't parsed correctly.
3166 * Problems with UDP checksum calculation.
3168 * IP multicast address tests had endianess problems.
3170 * ARP requests had wrong destination hardware address.
3174 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3176 * A ->linkoutput() member was added to struct netif.
3178 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3180 * ntoh* macros are now null definitions for big endian CPUs.
3182 (0.5.0) Changes since version 0.4.2
3186 * Redesigned operating system emulation layer to make porting easier.
3188 * Better control over TCP output buffers.
3190 * Documenation added.
3194 * Locking issues in buffer management.
3196 * Bugfixes in the sequential API.
3198 * IP forwarding could cause memory leakage. This has been fixed.
3202 * Directory structure somewhat changed; the core/ tree has been
3205 (0.4.2) Changes since version 0.4.1
3209 * Experimental ARP implementation added.
3211 * Skeleton Ethernet driver added.
3213 * Experimental BSD socket API library added.
3217 * In very intense situations, memory leakage could occur. This has
3222 * Variables named "data" and "code" have been renamed in order to
3223 avoid name conflicts in certain compilers.
3225 * Variable++ have in appliciable cases been translated to ++variable
3226 since some compilers generate better code in the latter case.
3228 (0.4.1) Changes since version 0.4
3232 * TCP: Connection attempts time out earlier than data
3233 transmissions. Nagle algorithm implemented. Push flag set on the
3234 last segment in a burst.
3236 * UDP: experimental support for UDP-Lite extensions.
3240 * TCP: out of order segments were in some cases handled incorrectly,
3241 and this has now been fixed. Delayed acknowledgements was broken
3242 in 0.4, has now been fixed. Binding to an address that is in use
3243 now results in an error. Reset connections sometimes hung an
3244 application; this has been fixed.
3246 * Checksum calculation sometimes failed for chained pbufs with odd
3247 lengths. This has been fixed.
3249 * API: a lot of bug fixes in the API. The UDP API has been improved
3250 and tested. Error reporting and handling has been
3251 improved. Logical flaws and race conditions for incoming TCP
3252 connections has been found and removed.
3254 * Memory manager: alignment issues. Reallocating memory sometimes
3255 failed, this has been fixed.
3257 * Generic library: bcopy was flawed and has been fixed.
3261 * API: all datatypes has been changed from generic ones such as
3262 ints, to specified ones such as u16_t. Functions that return
3263 errors now have the correct type (err_t).
3265 * General: A lot of code cleaned up and debugging code removed. Many
3266 portability issues have been fixed.
3268 * The license was changed; the advertising clause was removed.
3272 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3273 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3276 (0.4) Changes since version 0.3.1
3278 * Memory management has been radically changed; instead of
3279 allocating memory from a shared heap, memory for objects that are
3280 rapidly allocated and deallocated is now kept in pools. Allocation
3281 and deallocation from those memory pools is very fast. The shared
3282 heap is still present but is used less frequently.
3284 * The memory, memory pool, and packet buffer subsystems now support
3285 4-, 2-, or 1-byte alignment.
3287 * "Out of memory" situations are handled in a more robust way.
3289 * Stack usage has been reduced.
3291 * Easier configuration of lwIP parameters such as memory usage,
3292 TTLs, statistics gathering, etc. All configuration parameters are
3293 now kept in a single header file "lwipopts.h".
3295 * The directory structure has been changed slightly so that all
3296 architecture specific files are kept under the src/arch
3299 * Error propagation has been improved, both in the protocol modules
3302 * The code for the RTXC architecture has been implemented, tested
3305 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3306 the Internet checksum modules.
3308 * Bugs related to porting between a 32-bit and a 16-bit architecture
3309 have been found and corrected.
3311 * The license has been changed slightly to conform more with the
3312 original BSD license, including the advertisement clause.
3314 (0.3.1) Changes since version 0.3
3316 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3317 RAM never returned the RAM when the pbuf was deallocated.
3319 * TCP congestion control, window updates and retransmissions did not
3320 work correctly. This has now been fixed.
3322 * Bugfixes in the API.
3324 (0.3) Changes since version 0.2
3326 * New and improved directory structure. All include files are now
3327 kept in a dedicated include/ directory.
3329 * The API now has proper error handling. A new function,
3330 netconn_err(), now returns an error code for the connection in
3333 * Improvements in the memory management subsystem. The system now
3334 keeps a pointer to the lowest free memory block. A new function,
3335 mem_malloc2() tries to allocate memory once, and if it fails tries
3336 to free some memory and retry the allocation.
3338 * Much testing has been done with limited memory
3339 configurations. lwIP now does a better job when overloaded.
3341 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3343 * Many bugfixes in the TCP code:
3345 - Fixed a bug in tcp_close().
3347 - The TCP receive window was incorrectly closed when out of
3348 sequence segments was received. This has been fixed.
3350 - Connections are now timed-out of the FIN-WAIT-2 state.
3352 - The initial congestion window could in some cases be too
3353 large. This has been fixed.
3355 - The retransmission queue could in some cases be screwed up. This
3358 - TCP RST flag now handled correctly.
3360 - Out of sequence data was in some cases never delivered to the
3361 application. This has been fixed.
3363 - Retransmitted segments now contain the correct acknowledgment
3364 number and advertised window.
3366 - TCP retransmission timeout backoffs are not correctly computed
3367 (ala BSD). After a number of retransmissions, TCP now gives up
3370 * TCP connections now are kept on three lists, one for active
3371 connections, one for listening connections, and one for
3372 connections that are in TIME-WAIT. This greatly speeds up the fast
3373 timeout processing for sending delayed ACKs.
3375 * TCP now provides proper feedback to the application when a
3376 connection has been successfully set up.
3378 * More comments have been added to the code. The code has also been
3379 somewhat cleaned up.
3381 (0.2) Initial public release.