5 * [Enter new changes just after this line - do not remove this line]
9 2011-09-27: Simon Goldschmidt
10 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
11 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
13 2011-09-21: Simon Goldschmidt
14 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
15 send (TCP only, bug #33820)
17 2011-09-21: Simon Goldschmidt
18 * init.c: Converted runtime-sanity-checks into compile-time checks that can
19 be disabled (since runtime checks can often not be seen on embedded targets)
21 2011-09-11: Simon Goldschmidt
22 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
23 to get a clear separation of which functions an application or port may use
26 2011-09-11: Simon Goldschmidt
27 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
28 initial local TCP/UDP ports (so that different port ranges are used after
29 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
31 2011-09-03: Simon Goldschmidt
32 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
34 2011-08-24: Simon Goldschmidt
35 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
37 2011-07-26: Simon Goldschmidt
38 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
39 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
41 2011-07-21: Simon Goldschmidt (patch by hanhui)
42 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
43 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
44 Also added code to allow ip_forward() to forward non-broadcast packets to
45 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
47 2011-07-21: Simon Goldschmidt
48 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
49 ioctl/FIONREAD return the size of the next pending datagram.
51 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
52 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
55 2011-05-25: Simon Goldschmidt
56 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
57 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
58 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
59 code so that the code is more readable.
61 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
62 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
63 Ivan! (this is work in progress: we're just post release anyway :-)
65 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
66 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
72 2011-10-18: Simon Goldschmidt
73 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
76 2011-10-18: Simon Goldschmidt
77 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
78 windows (bug #34176 select after non-blocking send times out)
80 2011-10-18: Simon Goldschmidt
81 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
82 consider netif->mtu, causes slow network
84 2011-10-18: Simon Goldschmidt
85 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
87 2011-10-18: Simon Goldschmidt
88 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
90 2011-10-17: Simon Goldschmidt
91 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
93 2011-10-13: Simon Goldschmidt
94 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
95 zero window is received) by starting the persist timer when a zero window is
96 received, not when we have more data queued for sending than fits into the
99 2011-10-13: Simon Goldschmidt
100 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
102 2011-10-13: Simon Goldschmidt
103 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
104 used and not all protocols are enabled
106 2011-10-12: Simon Goldschmidt
107 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
109 2011-10-09: Simon Goldschmidt
110 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
111 byte value when pcb->unacked != NULL
113 2011-10-09: Simon Goldschmidt
114 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
116 2011-09-27: Simon Goldschmidt
117 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
119 2011-09-27: Simon Goldschmidt
120 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
122 2011-09-27: Simon Goldschmidt
123 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
125 2011-09-24: Simon Goldschmidt
126 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
128 2011-09-23: Simon Goldschmidt
129 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
130 the last packet including FIN can lose data
132 2011-09-22: Simon Goldschmidt
133 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
136 2011-09-21: Simon Goldschmidt
137 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
140 2011-09-20: Simon Goldschmidt
141 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
143 2011-09-11: Simon Goldschmidt
144 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
147 2011-09-09: Simon Goldschmidt
148 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
151 2011-09-03: Simon Goldschmidt
152 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
153 is aggregated and sent to application
155 2011-09-01: Simon Goldschmidt
156 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
159 2011-09-01: Simon Goldschmidt
160 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
162 2011-08-24: Simon Goldschmidt
163 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
165 2011-08-24: Simon Goldschmidt
166 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
167 accept() on UDP connections
169 2011-08-24: Simon Goldschmidt
170 * sockets.h: fixed bug #34057 socklen_t should be a typedef
172 2011-08-24: Simon Goldschmidt
173 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
175 2011-08-24: Simon Goldschmidt
176 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
178 2011-08-24: Simon Goldschmidt
179 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
181 2011-08-22: Simon Goldschmidt
182 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
183 merely prevents nagle from not transmitting fast after closing.)
185 2011-07-22: Simon Goldschmidt
186 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
187 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
188 lwip_send() sends as much as possible for non-blocking sockets
190 2011-07-22: Simon Goldschmidt
191 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
192 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
193 at regular intervals from main level.
195 2011-07-21: Simon Goldschmidt
196 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
197 sending an ARP request when an ARP entry is used in the last minute before
200 2011-07-04: Simon Goldschmidt
201 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
203 2011-06-26: Simon Goldschmidt
204 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
205 updating its documentation only.
207 2011-06-26: Simon Goldschmidt
208 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
211 2011-06-26: Simon Goldschmidt
212 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
220 2011-03-27: Simon Goldschmidt
221 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
222 calculate it in tcp_zero_window_probe (the only place where it was used).
224 2010-11-21: Simon Goldschmidt
225 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
228 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
229 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
230 IP_MULTICAST_LOOP at socket- and raw-API level.
232 2010-06-16: Simon Goldschmidt
233 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
234 link-layer-addressed UDP traffic to be received while a netif is down (just
235 like DHCP during configuration)
237 2010-05-22: Simon Goldschmidt
238 * many many files: bug #27352: removed packing from ip_addr_t, the packed
239 version is now only used in protocol headers. Added global storage for
240 current src/dest IP address while in input functions.
242 2010-05-16: Simon Goldschmidt
243 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
244 calculation (and use them throughout the stack where applicable)
246 2010-05-16: Simon Goldschmidt
247 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
248 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
250 2010-05-16: Simon Goldschmidt
251 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
252 MEMP pool instead of the heap
254 2010-05-13: Simon Goldschmidt
255 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
256 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
257 packets to more than one pcb.
259 2010-05-02: Simon Goldschmidt
260 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
261 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
263 2010-04-30: Simon Goldschmidt
264 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
265 take a precalculated checksum, added pbuf_fill_chksum() to copy data
266 into a pbuf and at the same time calculating the checksum for that data
268 2010-04-29: Simon Goldschmidt
269 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
270 2-byte-aligned IP addresses and MAC addresses
272 2010-04-28: Patch by Bill Auerbach
273 * ip.c: Inline generating IP checksum to save a function call
275 2010-04-14: Simon Goldschmidt
276 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
277 tcpip_thread processes messages or timeouts to implement a watchdog.
279 2010-03-28: Simon Goldschmidt
280 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
281 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
283 2010-03-27: Simon Goldschmidt
284 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
285 etharp_query to prevent unnecessary function calls (inspired by
288 2010-03-20: Simon Goldschmidt
289 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
290 since the linker cannot do this automatically to save space.
292 2010-03-20: Simon Goldschmidt
293 * opt.h, etharp.c/.h: Added support for static ARP table entries
295 2010-03-14: Simon Goldschmidt
296 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
297 when creating TCP segments, not when (re-)transmitting them.
299 2010-03-07: Simon Goldschmidt
300 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
301 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
302 This should speed up receiving data on sockets as the select code in
303 event_callback is only executed when select is waiting.
305 2010-03-06: Simon Goldschmidt
306 * tcp_out.c: task #7013 (Create option to have all packets delivered to
307 netif->output in one piece): Always copy to try to create single pbufs
310 2010-03-06: Simon Goldschmidt
311 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
312 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
313 for tcp netconns to receive pbufs, not netbufs; use that function
316 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
317 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
318 Work on tcp_enqueue: Don't waste memory when chaining segments,
319 added option TCP_OVERSIZE to prevent creating many small pbufs when
320 calling tcp_write with many small blocks of data. Instead, pbufs are
321 allocated larger than needed and the space is used for later calls to
324 2010-02-21: Simon Goldschmidt
325 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
328 2010-02-21: Simon Goldschmidt
329 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
330 implementation of tcp to make API usage cleare to application programmers
332 2010-02-14: Simon Goldschmidt/Stephane Lesage
333 * ip_addr.h: Improved some defines working on ip addresses, added faster
334 macro to copy addresses that cannot be NULL
336 2010-02-13: Simon Goldschmidt
337 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
338 blocking send operation)
340 2010-02-12: Simon Goldschmidt
341 * sockets.c/.h: Added a minimal version of posix fctl() to have a
342 standardised way to set O_NONBLOCK for nonblocking sockets.
344 2010-02-12: Simon Goldschmidt
345 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
346 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
347 and dhcp work with user-allocated structs instead of callin mem_malloc
349 2010-02-12: Simon Goldschmidt/Jeff Barber
350 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
351 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
353 2010-02-12: Simon Goldschmidt
354 * sys layer: task #10139 (Prefer statically allocated memory): converted
355 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
356 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
357 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
358 to let sys.h use binary semaphores instead of mutexes - as before)
360 2010-02-09: Simon Goldschmidt (Simon Kallweit)
361 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
362 (Restart system timeout handling)
364 2010-02-09: Simon Goldschmidt
365 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
366 netif.c) - loopif does not have to be created by the port any more,
367 just define LWIP_HAVE_LOOPIF to 1.
369 2010-02-08: Simon Goldschmidt
370 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
371 inet_ntoa_r/ipaddr_ntoa_r
373 2010-02-08: Simon Goldschmidt
374 * netif.h: Added netif_s/get_igmp_mac_filter() macros
376 2010-02-05: Simon Goldschmidt
377 * netif.h: Added function-like macros to get/set the hostname on a netif
379 2010-02-04: Simon Goldschmidt
380 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
381 make changing the actual implementation behind the typedef easier.
383 2010-02-01: Simon Goldschmidt
384 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
385 for allocating memory when getaddrinfo() is called.
387 2010-01-31: Simon Goldschmidt
388 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
389 them once instead of parsing for every option. This also removes
390 the need for mem_malloc from dhcp_recv and makes it possible to
391 correctly retrieve the BOOTP file.
393 2010-01-30: simon Goldschmidt
394 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
397 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
398 * api.h, api_msg.c, sockets.c: Added except set support in select
401 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
402 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
403 Add non-blocking support for connect (partly from patch #6860),
404 plus many cleanups in socket & netconn API.
406 2010-01-27: Simon Goldschmidt
407 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
408 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
410 2010-01-26: Simon Goldschmidt
411 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
413 2010-01-14: Simon Goldschmidt
414 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
415 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
417 2010-01-13: Simon Goldschmidt
418 * mem.c: The heap now may be moved to user-defined memory by defining
419 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
420 (patch #6966 and bug #26133)
422 2010-01-10: Simon Goldschmidt (Bill Auerbach)
423 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
426 2010-01-10: Simon Goldschmidt
427 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
428 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
430 2009-12-31: Simon Goldschmidt
431 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
432 added timers.c/.h: Separated timer implementation from semaphore/mbox
433 implementation, moved timer implementation to timers.c/.h, timers are
434 now only called from tcpip_thread or by explicitly checking them.
437 2009-12-27: Simon Goldschmidt
438 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
439 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
444 2011-04-20: Simon Goldschmidt
445 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
447 2011-04-13: Simon Goldschmidt
448 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
449 using ports in the IANA private/dynamic range (49152 through 65535).
451 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
452 * etharp.h/.c: Fixed broken VLAN support.
454 2011-03-27: Simon Goldschmidt
455 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
456 pcbs) by checking if the pcb was bound (local_port != 0).
458 2011-03-27: Simon Goldschmidt
459 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
461 2011-03-27: Simon Goldschmidt
462 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
463 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
465 2011-03-27: Simon Goldschmidt
466 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
467 is present never times out) by starting retransmission timer before checking
470 2011-03-22: Simon Goldschmidt
471 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
472 calling sio_read_abort() if the file descriptor is valid.
474 2011-03-14: Simon Goldschmidt
475 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
476 more than once can render a socket useless) since it mainly involves changing
477 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
479 2011-03-13: Simon Goldschmidt
480 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
481 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
482 use EALRADY instead of -1
484 2011-03-13: Simon Goldschmidt
485 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
486 connection has been aborted by err_tcp (since this is not a normal closing
489 2011-03-13: Simon Goldschmidt
490 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
491 with pcb->state != CLOSED
493 2011-02-17: Simon Goldschmidt
494 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
497 2011-02-17: Simon Goldschmidt
498 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
500 2011-01-24: Simon Goldschmidt
501 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
503 2010-12-02: Simon Goldschmidt
504 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
506 2010-11-23: Simon Goldschmidt
507 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
508 LWIP_SO_RCVBUF and ioctl/FIONREAD.
510 2010-11-23: Simon Goldschmidt
511 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
512 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
514 2010-11-23: Simon Goldschmidt
515 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
516 refusing 'refused_data' again.
518 2010-11-22: Simon Goldschmidt
519 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
520 after a successful nonblocking connection.
522 2010-11-22: Simon Goldschmidt
523 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
524 must be sent link-local
526 2010-11-22: Simon Goldschmidt
527 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
530 2010-11-20: Simon Goldschmidt
531 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
533 2010-11-20: Simon Goldschmidt
534 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
535 resemble other stacks.
537 2010-11-20: Simon Goldschmidt
538 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
539 no-copy TCP writes will never succeed.
541 2010-11-20: Simon Goldschmidt
542 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
543 not match documentation: return ERR_ARG instead of ERR_VAL if not
544 initialized or wrong argument.
546 2010-10-20: Simon Goldschmidt
547 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
549 2010-10-05: Simon Goldschmidt
550 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
551 replugging the network cable after an AutoIP address was assigned.
553 2010-08-10: Simon Goldschmidt
554 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
556 2010-08-03: Simon Goldschmidt
557 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
559 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
560 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
561 endian architectures)
563 2010-07-28: Simon Goldschmidt
564 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
567 2010-07-27: Simon Goldschmidt
568 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
569 harm but never did anything
571 2010-07-21: Simon Goldschmidt
572 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
575 2010-07-16: Kieran Mansley
576 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
578 2010-07-10: Simon Goldschmidt
579 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
581 2010-06-30: Simon Goldschmidt
582 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
585 2010-06-28: Kieran Mansley
586 * timers.c remove unportable printing of C function pointers
588 2010-06-24: Simon Goldschmidt
589 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
590 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
592 2010-06-24: Simon Goldschmidt
593 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
594 implemented shutdown at socket level.
596 2010-06-21: Simon Goldschmidt
597 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
598 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
599 custom pbufs that reference other (original) pbufs. Additionally set
600 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
602 2010-06-15: Simon Goldschmidt
603 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
605 2010-06-14: Simon Goldschmidt
606 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
608 2010-06-12: Simon Goldschmidt
609 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
612 2010-05-17: Simon Goldschmidt
613 * netdb.c: Correctly NULL-terminate h_addr_list
615 2010-05-16: Simon Goldschmidt
616 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
617 "symbol already defined" i.e. when linking to winsock
619 2010-05-05: Simon Goldschmidt
620 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
623 2010-04-21: Simon Goldschmidt
624 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
627 2010-03-28: Luca Ceresoli
628 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
630 2010-03-27: Luca Ceresoli
631 * mib2.c: patch #7130: remove meaningless const qualifiers
633 2010-03-26: Simon Goldschmidt
634 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
636 2010-03-26: Simon Goldschmidt
637 * various files: Fixed compiling with different options disabled (TCP/UDP),
638 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
640 2010-03-25: Simon Goldschmidt
641 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
643 2010-03-25: Simon Goldschmidt
644 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
645 overrunning our rcv_wnd in ooseq case.
647 2010-03-22: Simon Goldschmidt
648 * tcp.c: tcp_listen() did not copy the pcb's prio.
650 2010-03-19: Simon Goldschmidt
651 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
653 2010-03-14: Simon Goldschmidt
654 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
655 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
656 and basing PBUF_LINK_HLEN on it.
658 2010-03-08: Simon Goldschmidt
659 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
660 when assiging routable address): when checking incoming packets and
661 aborting existing connection on address change, filter out link-local
664 2010-03-06: Simon Goldschmidt
665 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
667 2010-03-06: Simon Goldschmidt
668 * ipv4/ip.c: Don't try to forward link-local addresses
670 2010-03-06: Simon Goldschmidt
671 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
674 2010-03-05: Simon Goldschmidt
675 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
678 2010-03-05: Simon Goldschmidt
679 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
680 into multiple calls to tcp_write.
682 2010-02-21: Simon Goldschmidt
683 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
684 the implementation of DNS_USES_STATIC_BUF==1)
686 2010-02-20: Simon Goldschmidt
687 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
688 close() vs. shutdown(). Now the application does not get any more
689 recv callbacks after calling tcp_close(). Added tcp_shutdown().
691 2010-02-19: Simon Goldschmidt
692 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
693 confusion with realloc()
695 2010-02-15: Simon Goldschmidt/Stephane Lesage
696 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
699 2010-02-14: Simon Goldschmidt
700 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
701 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
702 admin-status of a netif are up
704 2010-02-14: Simon Goldschmidt
705 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
706 reception and is not really necessary
708 2010-02-14: Simon Goldschmidt
709 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
710 request was directed as us (RFC 826, Packet Reception), otherwise
711 only update existing entries; internalized some functions
713 2010-02-14: Simon Goldschmidt
714 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
715 disabled on netif used for PPPoE) by adding a new netif flag
716 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
717 device but prevents usage of ARP (so that ethernet_input can be used
720 2010-02-12: Simon Goldschmidt
721 * netif.c: netif_set_link_up/down: only do something if the link state
724 2010-02-12: Simon Goldschmidt/Stephane Lesage
725 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
728 2010-02-12: Simon Goldschmidt
729 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
731 2010-02-09: Simon Goldschmidt
732 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
733 (recv() makes receive window update for data that wasn't received by
736 2010-02-09: Simon Goldschmidt/Stephane Lesage
737 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
738 or any netconn_recv() error)
740 2010-02-09: Simon Goldschmidt
741 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
743 2010-02-09: Simon Goldschmidt
744 * netif.c: For loopback packets, adjust the stats- and snmp-counters
745 for the loopback netif.
747 2010-02-08: Simon Goldschmidt
748 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
749 since they are not used anywhere else.
751 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
752 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
753 (patch from bug #28798)
755 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
756 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
757 another bug when LWIP_RAND() returns zero.
759 2010-02-04: Simon Goldschmidt
760 * nearly every file: Use macros defined in ip_addr.h (some of them new)
761 to work with IP addresses (preparation for bug #27352 - Change ip_addr
762 from struct to typedef (u32_t) - and better code).
764 2010-01-31: Simon Goldschmidt
765 * netif.c: Don't call the link-callback from netif_set_up/down() since
766 this invalidly retriggers DHCP.
768 2010-01-29: Simon Goldschmidt
769 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
770 portability file inet.h and its contents from the stack: moved htonX-
771 functions to def.h (and the new def.c - they are not ipv4 dependent),
772 let inet.h depend on ip_addr.h and not the other way round.
773 This fixes bug #28732.
775 2010-01-28: Kieran Mansley
776 * tcp.c: Ensure ssthresh >= 2*MSS
778 2010-01-27: Simon Goldschmidt
779 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
780 callback can lead to accessing unallocated memory. As a consequence,
781 ERR_ABRT means the application has called tcp_abort()!
783 2010-01-25: Simon Goldschmidt
784 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
785 not implemented in SNMP): write-only or not-accessible are still
786 returned by getnext (though not by get)
788 2010-01-24: Simon Goldschmidt
789 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
790 not use reserved C/C++ keywords
792 2010-01-23: Simon Goldschmidt
793 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
796 2010-01-21: Simon Goldschmidt
797 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
798 if tcp_enqueue fails) both in raw- and netconn-API
800 2010-01-19: Simon Goldschmidt
801 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
803 2010-01-18: Iordan Neshev/Simon Goldschmidt
804 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
805 bugfix backports from 2.4.x.
807 2010-01-18: Simon Goldschmidt
808 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
810 2010-01-17: Simon Goldschmidt
811 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
812 task #10102: "netconn: clean up conn->err threading issues" by adding
813 error return value to struct api_msg_msg
815 2010-01-17: Simon Goldschmidt
816 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
817 to return err_t (bugs #27709 and #28087)
819 2010-01-14: Simon Goldschmidt
820 * ...: Use typedef for function prototypes throughout the stack.
822 2010-01-13: Simon Goldschmidt
823 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
824 window = 0) by correctly draining recvmbox/acceptmbox
826 2010-01-11: Simon Goldschmidt
827 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
828 erroneous callbacks) by copying the code from recent pppd
830 2010-01-10: Simon Goldschmidt
831 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
833 2010-01-10: Simon Goldschmidt
834 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
836 2010-01-08: Simon Goldschmidt
837 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
839 2010-01-08: Simon Goldschmidt
840 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
841 passed to dns_local_addhost() might be volatile
843 2010-01-07: Simon Goldschmidt
844 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
846 2010-01-06: Simon Goldschmidt
847 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
849 2009-12-31: Simon Goldschmidt
850 * many ppp files: Reorganised PPP source code from ucip structure to pppd
851 structure to easily compare our code against the pppd code (around v2.3.1)
853 2009-12-27: Simon Goldschmidt
854 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
862 2009-10-27 Simon Goldschmidt/Stephan Lesage
863 * netifapi.c/.h: Added netifapi_netif_set_addr()
865 2009-10-07 Simon Goldschmidt/Fabian Koch
866 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
867 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
869 2009-08-26 Simon Goldschmidt/Simon Kallweit
870 * slipif.c/.h: bug #26397: SLIP polling support
872 2009-08-25 Simon Goldschmidt
873 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
874 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
876 2009-08-25 Simon Goldschmidt
877 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
879 2009-08-24 Jakob Stoklund Olesen
880 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
881 to netif_set_link_up().
883 2009-08-23 Simon Goldschmidt
884 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
885 to a human-readable string.
889 2009-12-24: Kieran Mansley
890 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
893 2009-12-06: Simon Goldschmidt
894 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
895 be statically allocated (like in ucip)
897 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
898 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
900 2009-12-03: Simon Goldschmidt
901 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
902 could have non-zero length
904 2009-12-02: Simon Goldschmidt
905 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
906 tcp_input_pcb until after calling the pcb's callbacks
908 2009-11-29: Simon Goldschmidt
909 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
910 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
912 2009-11-29: Simon Goldschmidt
913 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
914 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
916 2009-11-26: Simon Goldschmidt
917 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
920 2009-11-26: Simon Goldschmidt
921 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
922 algorithm at PCB level
924 2009-11-22: Simon Goldschmidt
925 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
927 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
928 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
929 reusing time-wait pcb
931 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
932 * sockets.c: Fixed bug #28062: Data received directly after accepting
933 does not wake up select
935 2009-11-11: Simon Goldschmidt
936 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
938 2009-10-30: Simon Goldschmidt
939 * opt.h: Increased default value for TCP_MSS to 536, updated default
940 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
942 2009-10-28: Kieran Mansley
943 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
944 to follow algorithm from TCP/IP Illustrated
946 2009-10-27: Kieran Mansley
947 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
949 2009-10-25: Simon Goldschmidt
950 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
951 pcb->recv is NULL to keep rcv_wnd correct)
953 2009-10-25: Simon Goldschmidt
954 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
956 2009-10-23: Simon Goldschmidt (David Empson)
957 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
959 2009-10-21: Simon Goldschmidt
960 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
961 trailing 1 byte len (SYN/FIN)
963 2009-10-21: Simon Goldschmidt
964 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
966 2009-10-19: Simon Goldschmidt
967 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
968 conditional code to assert where applicable), check pbuf length before
969 testing for valid reply
971 2009-10-19: Simon Goldschmidt
972 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
973 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
975 2009-10-16: Simon Goldschmidt
976 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
977 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
980 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
981 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
983 2009-10-15: Simon Goldschmidt
984 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
987 2009-10-15: Simon Goldschmidt
988 * autoip.c: Fixed bug #27704: autoip starts with wrong address
989 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
990 of network byte order
992 2009-10-11 Simon Goldschmidt (Jörg Kesten)
993 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
994 which are not consecutive when retransmitting unacked segments
996 2009-10-09 Simon Goldschmidt
997 * opt.h: Fixed default values of some stats to only be enabled if used
998 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1000 2009-08-30 Simon Goldschmidt
1001 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1002 function" by checking for loopback before calling ip_frag
1004 2009-08-25 Simon Goldschmidt
1005 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1007 2009-08-23 Simon Goldschmidt
1008 * ppp.c: bug #27078: Possible memory leak in pppInit()
1010 2009-08-23 Simon Goldschmidt
1011 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1014 2009-08-23 Simon Goldschmidt
1015 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1016 Fixed wrong parenthesis, added check in init.c
1018 2009-08-23 Simon Goldschmidt
1019 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1021 2009-08-23 Simon Goldschmidt
1022 * many ppp files: bug #27267: Added include to string.h where needed
1024 2009-08-23 Simon Goldschmidt
1025 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1032 2009-05-10 Simon Goldschmidt
1033 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1034 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1035 one pbuf to help MACs that don't support scatter-gather DMA.
1037 2009-05-09 Simon Goldschmidt
1038 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1039 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1041 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1042 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1043 extended info about the currently received packet.
1045 2009-04-27 Simon Goldschmidt
1046 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1048 2009-04-25 Simon Goldschmidt
1049 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1050 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1052 2009-04-21 Simon Goldschmidt
1053 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1054 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1055 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1056 as an external function for lookup.
1058 2009-04-15 Simon Goldschmidt
1059 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1061 2009-03-31 Kieran Mansley
1062 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1063 TCP timestamp options, off by default. Rework tcp_enqueue() to
1064 take option flags rather than specified option data
1066 2009-02-18 Simon Goldschmidt
1067 * cc.h: Added printf formatter for size_t: SZT_F
1069 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1070 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1073 2009-02-12 Simon Goldschmidt
1074 * init.h: Added LWIP_VERSION to get the current version of the stack
1076 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1077 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1078 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1081 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1082 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1083 is only used by UDPLITE at present, so conditionalise it.
1085 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1086 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1087 "seed" address. This should reduce AUTOIP conflicts if
1088 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1090 2008-10-02 Jonathan Larmour and Rishi Khan
1091 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1094 2008-06-30 Simon Goldschmidt
1095 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1096 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1097 mem_free to run between mem_malloc iterations. Added illegal counter for
1100 2008-06-27 Simon Goldschmidt
1101 * stats.h/.c, some other files: patch #6483: stats module improvement:
1102 Added defines to display each module's statistic individually, added stats
1103 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1105 2008-06-17 Simon Goldschmidt
1106 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1107 (define LWIP_ERR_T in cc.h)
1109 2008-06-17 Simon Goldschmidt
1110 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1113 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1114 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1115 modified version of patch # 6370: Moved loopif code to netif.c so that
1116 loopback traffic is supported on all netifs (all local IPs).
1117 Added option to limit loopback packets for each netifs.
1121 2009-08-12 Kieran Mansley
1122 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1123 out of window or out of order properly
1125 2009-08-12 Kieran Mansley
1126 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1128 2009-07-28 Simon Goldschmidt
1129 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1131 2009-07-27 Kieran Mansley
1132 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1134 2009-07-09 Kieran Mansley
1135 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1136 recv_avail and don't increment counters until message successfully
1139 2009-06-25 Kieran Mansley
1140 * api_msg.c api.h: BUG26722: initialise netconn write variables
1143 2009-06-25 Kieran Mansley
1144 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1146 2009-06-25 Kieran Mansley
1147 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1148 simultaneous close behaviour, and make snd_nxt have the same meaning
1151 2009-05-12 Simon Goldschmidt
1152 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1153 arp_table / uses etharp_query" by adding etharp_gratuitous()
1155 2009-05-12 Simon Goldschmidt
1156 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1157 to the IP header (used by igmp_ip_output_if)
1159 2009-05-06 Simon Goldschmidt
1160 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1161 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1163 2009-05-05 Simon Goldschmidt
1164 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1167 2009-05-04 Simon Goldschmidt
1168 * init.c: snmp was not initialized in lwip_init()
1170 2009-05-04 Frédéric Bernon
1171 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1173 2009-05-03 Simon Goldschmidt
1174 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1175 (and unsent->next == NULL)
1177 2009-05-02 Simon Goldschmidt
1178 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1179 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1181 2009-05-02 Simon Goldschmidt
1182 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1184 2009-05-01 Simon Goldschmidt
1185 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1187 2009-05-01 Simon Goldschmidt
1188 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1190 2009-04-29 Frédéric Bernon
1191 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1192 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1193 of broadcast packets even when this option wasn't set. Port maintainers
1194 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1195 If you want this option also filter broadcast on recv operations, you also
1196 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1198 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1199 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1200 DHCP/AUTOIP cooperation
1202 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1203 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1204 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1205 right place in tcp_output and tcp_rexmit).
1207 2009-04-25 Simon Goldschmidt
1208 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1209 when debugging": memp_sizes contained the wrong sizes (including sanity
1210 regions); memp pools for MEM_USE_POOLS were too small
1212 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1213 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1214 behavior, with with ip address string not ended by a '\0', a space or a
1217 2009-04-19 Simon Goldschmidt
1218 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1219 pcb->err is called, not pcb->connected (with an error code).
1221 2009-04-19 Simon Goldschmidt
1222 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1223 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1225 2009-04-19 Simon Goldschmidt
1226 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1227 in the header pbuf, not the data pbuf)
1229 2009-04-18 Simon Goldschmidt
1230 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1232 2009-04-15 Simon Goldschmidt
1233 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1235 2009-04-15 Simon Goldschmidt
1236 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1238 2009-04-15 Simon Goldschmidt
1239 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1240 ip_hinted_output() (for smaller code mainly)
1242 2009-04-15 Simon Goldschmidt
1243 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1245 2009-04-15 Simon Goldschmidt
1246 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1247 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1248 is big enough in dhcp_start
1250 2009-04-15 Simon Goldschmidt
1251 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1253 2009-04-15 Simon Goldschmidt
1254 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1256 2009-04-15 Simon Goldschmidt
1257 * sockets.c: bug #26121: set_errno can be overridden
1259 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1260 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1263 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1264 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1267 2009-03-31 Kieran Mansley
1268 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1269 updates are calculated and sent (BUG20515)
1271 * tcp_in.c: cope with SYN packets received during established states,
1272 and retransmission of initial SYN.
1274 * tcp_out.c: set push bit correctly when tcp segments are merged
1276 2009-03-27 Kieran Mansley
1277 * tcp_out.c set window correctly on probes (correcting change made
1280 2009-03-26 Kieran Mansley
1281 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1282 connections where no reset required (bug #25622)
1284 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1287 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1288 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1289 too small depending on MEM_ALIGNMENT
1291 2009-02-16 Simon Goldschmidt
1292 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1293 converted size argument of netconn_write to 'size_t'
1295 2009-02-16 Simon Goldschmidt
1296 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1297 by moving accept callback function pointer to TCP_PCB_COMMON
1299 2009-02-12 Simon Goldschmidt
1300 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1303 2009-02-11 Simon Goldschmidt
1304 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1306 2009-02-11 Simon Goldschmidt
1307 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1308 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1310 2009-02-10 Simon Goldschmidt
1311 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1312 Accepts_pending is decrease on a corresponding listen pcb when a connection
1313 in state SYN_RCVD is close.
1315 2009-01-28 Jonathan Larmour
1316 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1319 2008-12-19 Simon Goldschmidt
1320 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1322 2008-12-10 Tamas Somogyi, Frédéric Bernon
1323 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1324 port uses deleted netbuf.
1326 2008-10-18 Simon Goldschmidt
1327 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1330 2008-10-15 Simon Goldschmidt
1331 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1332 by packing the struct ip_reass_helper.
1334 2008-10-03 David Woodhouse, Jonathan Larmour
1335 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1337 2008-10-02 Jonathan Larmour
1338 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1339 padding is included.
1341 2008-09-30 Jonathan Larmour
1342 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1343 assertion check that addrlen isn't NULL.
1345 2008-09-30 Jonathan Larmour
1346 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1348 2008-08-26 Simon Goldschmidt
1349 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1350 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1352 2008-08-14 Simon Goldschmidt
1353 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1354 tcp_close returns != ERR_OK)
1356 2008-07-08 Frédéric Bernon
1357 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1358 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1360 2008-06-24 Jonathan Larmour
1361 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1362 if tcp_seg_copy fails.
1364 2008-06-17 Simon Goldschmidt
1365 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1366 and created defines for swapping bytes and folding u32 to u16.
1368 2008-05-30 Kieran Mansley
1369 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1370 rather than rcv_ann_wnd when deciding if packets are in-window.
1371 Contributed by <arasmussen@consultant.datasys.swri.edu>
1373 2008-05-30 Kieran Mansley
1374 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1375 passing as function pointers when MEM_LIBC_MALLOC is defined.
1377 2008-05-09 Jonathan Larmour
1378 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1379 stop it being treated as a fatal error.
1381 2008-04-15 Simon Goldschmidt
1382 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1385 2008-03-27 Simon Goldschmidt
1386 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1387 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1388 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1389 or heap memory from interrupt context
1391 2008-03-26 Simon Goldschmidt
1392 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1393 host sent a zero mss as TCP option.
1400 2008-03-10 Jonathan Larmour
1401 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1402 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1404 2008-01-22 Frédéric Bernon
1405 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1406 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1408 2008-01-14 Frédéric Bernon
1409 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1410 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1411 tcp_recv callback (see rawapi.txt).
1413 2008-01-14 Frédéric Bernon, Marc Chaland
1414 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1416 2008-01-12 Frédéric Bernon
1417 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1418 netconn::sem per netconn::op_completed like suggested for the task #7490
1419 "Add return value to sys_mbox_post".
1421 2008-01-12 Frédéric Bernon
1422 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1423 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1424 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1426 2008-01-10 Frédéric Bernon
1427 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1428 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1429 "blocking" ("block" parameter = 1).
1431 2008-01-10 Frédéric Bernon
1432 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1433 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1434 "Add return value to sys_mbox_post".
1436 2008-01-05 Frédéric Bernon
1437 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1438 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1439 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1440 indicate the number of pointers query by the mailbox. There is three defines
1441 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1442 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1443 parameter in your implementation, but to ignore it to keep the previous behavior.
1444 The new sys_mbox_trypost function return a value to know if the mailbox is
1445 full or if the message is posted. Take a look to sys_arch.txt for more details.
1446 This new function is used in tcpip_input (so, can be called in an interrupt
1447 context since the function is not blocking), and in recv_udp and recv_raw.
1449 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1450 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1451 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1452 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1453 documentation in the rawapi.txt file.
1455 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1456 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1458 2007-12-31 Frédéric Bernon, Luca Ceresoli
1459 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1460 in autoip". The change in etharp_raw could be removed, since all calls to
1461 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1462 wrong in the future.
1464 2007-12-30 Frédéric Bernon, Tom Evans
1465 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1466 Filtering" reported by Tom Evans.
1468 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1469 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1470 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1471 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1472 keep accepting new connections.
1474 2007-12-13 Frédéric Bernon
1475 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1476 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1478 2007-12-12 Frédéric Bernon
1479 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1480 are the one which have ram usage.
1482 2007-12-05 Frédéric Bernon
1483 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1484 set of variables (=0) or a local one (=1). In this last case, your port should
1485 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1486 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1488 2007-12-03 Simon Goldschmidt
1489 * ip.c: ip_input: check if a packet is for inp first before checking all other
1490 netifs on netif_list (speeds up packet receiving in most cases)
1492 2007-11-30 Simon Goldschmidt
1493 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1494 UDP: move a (connected) pcb selected for input to the front of the list of
1495 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1498 2007-11-28 Simon Goldschmidt
1499 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1501 2007-11-25 Simon Goldschmidt
1502 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1505 2007-11-24 Simon Goldschmidt
1506 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1507 to the new file netdb.c; included lwip_getaddrinfo.
1509 2007-11-21 Simon Goldschmidt
1510 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1511 based on the MTU of the netif used to send. Enabled by default. Disable by
1512 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1514 2007-11-19 Frédéric Bernon
1515 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1516 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1517 copy dns payload to parse the response), return an error if there is no place
1518 for a new query, and fix some minor problems.
1520 2007-11-16 Simon Goldschmidt
1521 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1522 removed files: core/inet.c, core/inet6.c
1523 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1524 inet and chksum part; changed includes in all lwIP files as appropriate
1526 2007-11-16 Simon Goldschmidt
1527 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1528 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1529 (gethostbyname/gethostbyname_r).
1531 2007-11-15 Jim Pettinato, Frédéric Bernon
1532 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1533 requests with RAW api interface. Initialization is done in lwip_init() with
1534 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1535 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1536 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1537 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1538 list with points to improve.
1540 2007-11-06 Simon Goldschmidt
1541 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1542 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1543 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1545 2007-11-06 Simon Goldschmidt
1546 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1547 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1548 implementation from netconn api applications.
1550 2007-11-03 Frédéric Bernon
1551 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1552 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1553 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1554 it. This is a first release which have to be improve for TCP. Note it used the
1555 netconn::recv_avail which need to be more "thread-safe" (note there is already
1556 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1558 2007-11-01 Frédéric Bernon, Marc Chaland
1559 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1560 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1561 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1562 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1563 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1565 2007-10-24 Frédéric Bernon
1566 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1567 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1568 some code (like we have talk in "patch #5919 : Create compile switch to remove
1569 select code"), but it could be done later.
1571 2007-10-08 Simon Goldschmidt
1572 * many files: Changed initialization: many init functions are not needed any
1573 more since we now rely on the compiler initializing global and static
1576 2007-10-06 Simon Goldschmidt
1577 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1578 to enqueue the received pbufs so that multiple packets can be reassembled
1579 simultaneously and no static reassembly buffer is needed.
1581 2007-10-05 Simon Goldschmidt
1582 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1583 all netifs (or ports) can use it.
1585 2007-10-05 Frédéric Bernon
1586 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1587 common function to reduce a little bit the footprint (for all functions using
1588 only the "netif" parameter).
1590 2007-10-03 Frédéric Bernon
1591 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1592 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1593 a little bit the footprint (for all functions using only the "netif" parameter).
1595 2007-09-15 Frédéric Bernon
1596 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1597 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1598 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1599 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1601 2007-09-10 Frédéric Bernon
1602 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1603 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1604 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1605 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1606 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1607 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1608 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1609 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1610 when it's queried (any direct call to "sysuptime" is changed by a call to
1611 snmp_get_sysuptime).
1613 2007-09-09 Frédéric Bernon, Bill Florac
1614 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1615 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1616 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1617 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1618 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1619 the next query message to receive the matching multicast streams).
1621 2007-09-08 Frédéric Bernon
1622 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1623 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1624 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1625 Enable to access to these fields with LWIP_TCP=0.
1627 2007-09-05 Frédéric Bernon
1628 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1629 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1630 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1631 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1632 help to reduce footprint, and to reduce "visibility" on the Internet.
1634 2007-09-05 Frédéric Bernon, Bill Florac
1635 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1636 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1637 parameters have to be provided: a task name, and a task stack size. For this
1638 one, since it's platform dependant, you could define the best one for you in
1639 your lwipopts.h. For port maintainers, you can just add these new parameters
1640 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1643 2007-09-05 Frédéric Bernon
1644 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1645 inside init.c for task #7142 "Sanity check user-configurable values".
1647 2007-09-04 Frédéric Bernon, Bill Florac
1648 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1649 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1650 value). It will avoid potential fragmentation problems, use a counter to know
1651 how many times a group is used on an netif, and free it when all applications
1652 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1653 check if LWIP_IGMP!=0).
1655 2007-09-03 Frédéric Bernon
1656 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1657 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1658 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1659 and/or the "interface" field (for netconn layer), for join/leave operations.
1660 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1661 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1663 2007-08-30 Frédéric Bernon
1664 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1665 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1666 with other API (application based on raw API, or future "socket2" API). Ports
1667 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1669 2007-08-30 Frédéric Bernon, Jonathan Larmour
1670 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1671 user-configurable values".
1673 2007-08-29 Frédéric Bernon
1674 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1675 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1676 spirit than the others modules. Modify some IGMP debug traces.
1678 2007-08-29 Frédéric Bernon
1679 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1680 Add lwip_init function to regroup all modules initializations, and to provide
1681 a place to add code for task #7142 "Sanity check user-configurable values".
1682 Ports maintainers should remove direct initializations calls from their code,
1683 and add init.c in their makefiles. Note that lwip_init() function is called
1684 inside tcpip_init, but can also be used by raw api users since all calls are
1685 disabled when matching options are disabled. Also note that their is new options
1686 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1688 2007-08-26 Marc Boucher
1689 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1690 since they can under certain circumstances be called with an invalid conn
1691 pointer after the connection has been closed (and conn has been freed).
1693 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1694 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1695 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1697 2007-08-22 Frédéric Bernon
1698 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1699 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1701 2007-08-22 Frédéric Bernon
1702 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1703 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1704 name is tcpip_input (we keep the name of 1.2.0 function).
1706 2007-08-17 Jared Grubb
1707 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1708 settings into new memp_std.h and optional user file lwippools.h. This adds
1709 more dynamic mempools, and allows the user to create an arbitrary number of
1710 mempools for mem_malloc.
1712 2007-08-16 Marc Boucher
1713 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1714 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1715 close the connection.
1717 2007-08-16 Marc Boucher
1718 * sockets.c: lwip_accept(): check netconn_peer() error return.
1720 2007-08-16 Marc Boucher
1721 * mem.c, mem.h: Added mem_calloc().
1723 2007-08-16 Marc Boucher
1724 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1725 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1726 and starving other message types.
1727 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1729 2007-08-16 Marc Boucher
1730 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1731 type and flgs (later renamed to flags).
1732 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1733 Improved lwip_recvfrom(). TCP push now propagated.
1735 2007-08-16 Marc Boucher
1736 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1739 2007-08-16 Marc Boucher
1740 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1741 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1742 Added PPPoE support and various PPP improvements.
1744 2007-07-25 Simon Goldschmidt
1745 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1746 making netbuf_copy_partial use this function.
1748 2007-07-25 Simon Goldschmidt
1749 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1750 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1753 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1754 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1755 a link callback in the netif struct, and functions to handle it. Be carefull
1756 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1757 if you want to be sure to be compatible with future changes...
1759 2007-06-30 Frédéric Bernon
1760 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1762 2007-06-21 Simon Goldschmidt
1763 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1764 LWIP_AUTOIP =0 and =1 to remove redundant code.
1766 2007-06-21 Simon Goldschmidt
1767 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1768 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1769 heap. This both prevents memory fragmentation and gives a higher speed
1770 at the cost of more memory consumption. Turned off by default.
1772 2007-06-21 Simon Goldschmidt
1773 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1774 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1775 int to be able to send a bigger buffer than 64K with one time (mainly
1776 used from lwip_send).
1778 2007-06-21 Simon Goldschmidt
1779 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1780 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1782 2007-06-21 Simon Goldschmidt
1783 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1784 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1785 changes on low memory or empty send-buffer.
1787 2007-06-18 Simon Goldschmidt
1788 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1789 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1790 used for ethernet and struct eth_addr already had a defined length of 6).
1792 2007-06-17 Simon Goldschmidt
1793 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1794 to disable UDP checksum generation on transmit.
1796 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1797 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1798 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1799 this macro to check "conn" parameter in api_msg.c functions.
1801 2007-06-11 Simon Goldschmidt
1802 * sockets.c, sockets.h: Added UDP lite support for sockets
1804 2007-06-10 Simon Goldschmidt
1805 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1806 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1809 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1810 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1811 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1812 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1813 (see TODO mark in the source code).
1815 2007-06-09 Simon Goldschmidt
1816 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1817 etharp_output() to match netif->output so etharp_output() can be used
1818 directly as netif->output to save one function call.
1820 2007-06-08 Simon Goldschmidt
1821 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1822 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1823 added initialization of those to ethernetif, slipif and loopif.
1825 2007-05-18 Simon Goldschmidt
1826 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1827 (defaulting to off for now) that can be set to 0 to send fragmented
1828 packets by passing PBUF_REFs down the stack.
1830 2007-05-23 Frédéric Bernon
1831 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1832 connections, such present in patch #5959.
1834 2007-05-23 Frédéric Bernon
1835 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1836 code in only one part...
1838 2007-05-18 Simon Goldschmidt
1839 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1840 elements to overflow. This is achieved by adding some bytes before and after
1841 each pool element (increasing their size, of course), filling them with a
1842 prominent value and checking them on freeing the element.
1843 Set it to 2 to also check every element in every pool each time memp_malloc()
1844 or memp_free() is called (slower but more helpful).
1846 2007-05-10 Simon Goldschmidt
1847 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1848 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1851 2007-05-11 Frédéric Bernon
1852 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1853 Include a function pointer instead of a table index in the message to reduce
1854 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1855 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1857 2007-05-10 Simon Goldschmidt
1858 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1859 \ extern "C" {' in all header files. Now you can write your application using
1860 the lwIP stack in C++ and simply #include the core files. Note I have left
1861 out the netif/ppp/*h header files for now, since I don't know which files are
1862 included by applications and which are for internal use only.
1864 2007-05-09 Simon Goldschmidt
1865 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1866 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1867 situations where some compilers might inline the copy and save a function
1868 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1870 2007-05-08 Simon Goldschmidt
1871 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1872 to be overriden in case the C-library malloc implementation is not protected
1873 against concurrent access.
1875 2007-05-04 Simon Goldschmidt (Atte Kojo)
1876 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1877 multiple packets to the same host.
1879 2007-05-04 Frédéric Bernon, Jonathan Larmour
1880 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1881 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1882 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1883 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1884 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1885 these fields are now renamed "addr" & "port".
1887 2007-04-11 Jonathan Larmour
1888 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1889 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1890 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1891 by the port in sys_arch.h if desired.
1893 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1894 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1895 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1896 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1898 2007-04-05 Frédéric Bernon
1899 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1901 2007-04-04 Simon Goldschmidt
1902 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1903 use this for and architecture-independent form to tell the compiler you intentionally
1904 are not using this variable. Can be overriden in cc.h.
1906 2007-03-28 Frédéric Bernon
1907 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1908 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1909 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1910 It will be used by DHCP to register a client hostname, but can also be use when you call
1913 2007-03-28 Frédéric Bernon
1914 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1915 initialize a network interface's flag with. It tell this interface is an ethernet
1916 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1917 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1919 2007-03-26 Frédéric Bernon, Jonathan Larmour
1920 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1921 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1922 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1923 is done in tcpip_init function.
1925 2007-03-22 Frédéric Bernon
1926 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1927 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1928 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1929 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1930 but never used. Fix msg_in.c with the correct #if test for a stat display.
1932 2007-03-21 Kieran Mansley
1933 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1934 Provides callback on netif up/down state change.
1936 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1937 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1938 ip.c, netif.h, tcpip.c, opt.h:
1939 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1940 filter per all network interfaces. Declare a new function in netif to enable to
1941 control the MAC filter (to reduce lwIP traffic processing).
1943 2007-03-11 Frédéric Bernon
1944 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1945 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1946 unless you know what you're doing (default are RFC1122 compliant). Note
1947 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1949 2007-03-08 Frédéric Bernon
1950 * tcp.h: Keepalive values can be configured at compile time, but don't change
1951 this unless you know what you're doing (default are RFC1122 compliant).
1953 2007-03-08 Frédéric Bernon
1954 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1955 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1956 on UDP sockets/netconn.
1958 2007-03-08 Simon Goldschmidt
1959 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1961 2007-03-06 Frédéric Bernon
1962 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1963 Implement SO_RCVTIMEO on UDP sockets/netconn.
1965 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1966 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1967 on the stack and remove the API msg type from memp
1969 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1970 * sockets.h, sockets.c: Move socket initialization to new
1971 lwip_socket_init() function.
1972 NOTE: this changes the API with ports. Ports will have to be
1973 updated to call lwip_socket_init() now.
1975 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1976 * api_lib.c: Use memcpy in netbuf_copy_partial.
1981 2008-03-17 Frédéric Bernon, Ed Kerekes
1982 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1983 some problems to fill the IP header on some targets, use now the
1984 ip.h macros to do it).
1986 2008-03-13 Frédéric Bernon
1987 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1988 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1989 TCP connection caused a crash. Note that using (lwip_)recvfrom
1990 like this is a bit slow and that using (lwip)getpeername is the
1991 good lwip way to do it (so, using recv is faster on tcp sockets).
1993 2008-03-12 Frédéric Bernon, Jonathan Larmour
1994 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1995 recv_raw() does not consume data", and the ping sample (with
1996 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1997 returned the IP payload, without the IP header).
1999 2008-03-04 Jonathan Larmour
2000 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2001 and/or warnings on some systems where mem_size_t and size_t differ.
2002 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2004 2008-03-04 Kieran Mansley (contributions by others)
2005 * Numerous small compiler error/warning fixes from contributions to
2006 mailing list after 1.3.0 release candidate made.
2008 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2009 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2011 2008-01-15 Kieran Mansley
2012 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2013 prevented from sending by a small send window, not just a zero
2016 2008-01-09 Jonathan Larmour
2017 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2018 conflict with Linux system headers.
2020 2008-01-06 Jonathan Larmour
2021 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2022 address entirely on receiving a DHCPNAK, and restarting discovery.
2024 2007-12-21 Simon Goldschmidt
2025 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2026 is not protected" by using new macros for interlocked access to modify/test
2027 netconn->recv_avail.
2029 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2030 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2032 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2033 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2034 of silly window avoidance and prevent lwIP from shrinking the window)
2036 2007-12-04 Simon Goldschmidt
2037 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2038 data packet was lost): add assert that all segment lists are empty in
2039 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2040 state from LAST_ACK in tcp_process
2042 2007-12-02 Simon Goldschmidt
2043 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2044 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2045 has to be set to 0 in lwipopts.h
2047 2007-12-02 Simon Goldschmidt
2048 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2049 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2050 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2051 This is a fix for thread-safety and allocates all items needed for a netconn
2052 when the netconn is created.
2054 2007-11-30 Simon Goldschmidt
2055 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2056 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2057 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2058 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2060 2007-11-27 Simon Goldschmidt
2061 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2062 letting ip_route only use netifs that are up.
2064 2007-11-27 Simon Goldschmidt
2065 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2066 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2067 sockets block most operations once they have seen a fatal error.
2069 2007-11-27 Simon Goldschmidt
2070 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2071 netif to send as an argument (to be able to send on netifs that are down).
2073 2007-11-26 Simon Goldschmidt
2074 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2077 2007-11-21 Simon Goldschmidt
2078 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2079 Fixed the nagle algorithm; nagle now also works for all raw API applications
2080 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2082 2007-11-12 Frédéric Bernon
2083 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2084 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2085 context in do_getaddr.
2087 2007-11-10 Simon Goldschmidt
2088 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2089 happen any time). Now the packet simply isn't enqueued when out of memory.
2091 2007-11-01 Simon Goldschmidt
2092 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2093 TCP_MSS if that is smaller) as long as no MSS option is received from the
2096 2007-11-01 Simon Goldschmidt
2097 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2098 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2099 sending our configured TCP_MSS instead of the one received).
2101 2007-11-01 Simon Goldschmidt
2102 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2103 calculated based on the configured TCP_MSS, not on the MSS option received
2106 2007-10-09 Simon Goldschmidt
2107 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2108 short and also was generated wrong if checksum coverage != tot_len;
2109 receive: checksum was calculated wrong if checksum coverage != tot_len
2111 2007-10-08 Simon Goldschmidt
2112 * mem.c: lfree was not updated in mem_realloc!
2114 2007-10-07 Frédéric Bernon
2115 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2116 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2117 this change cause an API breakage for netconn_addr, since a parameter
2118 type change. Any compiler should cause an error without any changes in
2119 yours netconn_peer calls (so, it can't be a "silent change"). It also
2120 reduce a little bit the footprint for socket layer (lwip_getpeername &
2121 lwip_getsockname use now a common lwip_getaddrname function since
2122 netconn_peer & netconn_addr have the same parameters).
2124 2007-09-20 Simon Goldschmidt
2125 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2126 by checking tcp_tw_pcbs also
2128 2007-09-19 Simon Goldschmidt
2129 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2131 2007-09-15 Mike Kleshov
2132 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2134 2007-09-06 Frédéric Bernon
2135 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2136 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2137 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2138 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2140 2007-08-30 Frédéric Bernon
2141 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2142 and fix some coding style.
2144 2007-08-28 Frédéric Bernon
2145 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2146 kind of packets. These packets are considered like Ethernet packets (payload
2147 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2148 are considered like IP packets (payload pointing to iphdr).
2150 2007-08-27 Frédéric Bernon
2151 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2152 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2153 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2155 2007-08-24 Kieran Mansley
2156 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2157 compiler (Paradigm C++)
2159 2007-08-09 Frédéric Bernon, Bill Florac
2160 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2161 Introduce IGMP_STATS to centralize statistics management.
2163 2007-08-09 Frédéric Bernon, Bill Florac
2164 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2165 packet on a udp pcb binded on an netif's IP address, and not on "any".
2167 2007-08-09 Frédéric Bernon, Bill Florac
2168 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2169 This is mainly on using lookup/lookfor, and some coding styles...
2171 2007-07-26 Frédéric Bernon (and "thedoctor")
2172 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2174 2007-07-25 Simon Goldschmidt
2175 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2176 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2177 (tcp_output is called again later from tcp timers).
2179 2007-07-25 Simon Goldschmidt
2180 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2181 copy_from_pbuf, which illegally modified the given pbuf.
2183 2007-07-25 Simon Goldschmidt
2184 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2185 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2187 2007-07-24 Simon Goldschmidt
2188 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2189 correct state (must be CLOSED).
2191 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2192 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2193 allocation. It now returns NULL.
2195 2007-07-13 Frédéric Bernon
2196 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2199 2007-07-13 Frédéric Bernon
2200 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2201 because current code doesn't follow rawapi.txt documentation.
2203 2007-07-13 Kieran Mansley
2204 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2205 out of sequence processing of received packets
2207 2007-07-03 Simon Goldschmidt
2208 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2209 assumption is made that this pbuf is in one piece (i.e. not chained). These
2210 assumptions clash with the possibility of converting to fully pool-based
2211 pbuf implementations, where PBUF_RAM pbufs might be chained.
2213 2007-07-03 Simon Goldschmidt
2214 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2215 when closing tcp netconns: removed conn->sem, less context switches when
2216 closing, both netconn_close and netconn_delete should safely close tcp
2219 2007-07-02 Simon Goldschmidt
2220 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2221 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2222 to cache ARP table indices with each pcb instead of single-entry cache for
2225 2007-07-02 Simon Goldschmidt
2226 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2227 warnings when assigning to smaller types.
2229 2007-06-28 Simon Goldschmidt
2230 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2232 2007-06-28 Simon Goldschmidt
2233 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2234 a segment contained chained pbufs)
2236 2007-06-28 Frédéric Bernon
2237 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2238 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2239 possible to define this macro in your own lwipopts.h to always use C library's
2240 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2242 2007-06-28 Frédéric Bernon
2243 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2244 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2245 in api_lib/api_msg (use pointers and not type with table, etc...)
2247 2007-06-26 Simon Goldschmidt
2248 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2250 2007-06-25 Simon Goldschmidt
2251 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2252 for udp packets with no matching pcb.
2254 2007-06-25 Simon Goldschmidt
2255 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2256 could get udp input packets if the remote side matched.
2258 2007-06-13 Simon Goldschmidt
2259 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2260 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2262 2007-06-13 Simon Goldschmidt
2263 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2264 -> netconn_new_..() does not allocate a new connection for unsupported
2267 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2268 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2269 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2271 2007-06-13 Frédéric Bernon, Matthias Weisser
2272 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2273 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2274 some macro names collision with some OS macros.
2276 2007-06-11 Simon Goldschmidt
2277 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2278 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2279 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2282 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2283 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2284 where TCP flags wasn't initialized in tcp_keepalive.
2286 2007-06-03 Simon Goldschmidt
2287 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2288 registered, p->payload was modified without modifying p->len if sending
2289 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2291 2007-06-03 Simon Goldschmidt
2292 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2293 re-used the input pbuf even if that didn't have enough space to include the
2294 link headers. Now the space is tested and a new pbuf is allocated for the
2295 echo response packet if the echo request pbuf isn't big enough.
2297 2007-06-01 Simon Goldschmidt
2298 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2300 2007-05-23 Frédéric Bernon
2301 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2302 allocated by do_listen if success) and netconn_accept errors handling. In
2303 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2304 by ASSERT, except for netconn_delete.
2306 2007-05-23 Frédéric Bernon
2307 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2308 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2309 directly close the recvmbox).
2311 2007-05-22 Simon Goldschmidt
2312 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2313 bound but unconnected (and non-listening) tcp_pcbs.
2315 2007-05-22 Frédéric Bernon
2316 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2317 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2318 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2319 like "sys_timeout" in their application threads.
2321 2007-05-22 Frédéric Bernon
2322 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2323 which parameters are used by which do_xxx function, and to avoid "misusing"
2324 parameters (patch #5938).
2326 2007-05-22 Simon Goldschmidt
2327 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2328 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2329 is only 8 bits wide. This affects the api, as there, the protocol was
2332 2007-05-18 Simon Goldschmidt
2333 * memp.c: addition to patch #5913: smaller pointer was returned but
2334 memp_memory was the same size -> did not save memory.
2336 2007-05-16 Simon Goldschmidt
2337 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2340 2007-05-16 Simon Goldschmidt
2341 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2342 as the one of the netif used for sending to prevent sending from old
2343 addresses after a netif address gets changed (partly fixes bug #3168).
2345 2007-05-16 Frédéric Bernon
2346 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2347 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2348 tcpip_init) because we have to be sure that network interfaces are already
2349 added (mac filter is updated only in igmp_init for the moment).
2351 2007-05-16 Simon Goldschmidt
2352 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2353 into sys_arch_sem_wait calls to prevent timers from running while waiting
2354 for the heap. This fixes bug #19167.
2356 2007-05-13 Simon Goldschmidt
2357 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2358 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2361 2007-05-07 Simon Goldschmidt
2362 * mem.c: Another attempt to fix bug #17922.
2364 2007-05-04 Simon Goldschmidt
2365 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2366 implementation so that it can be reused (don't allocate the target
2367 pbuf inside pbuf_copy()).
2369 2007-05-04 Simon Goldschmidt
2370 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2371 to save a little RAM (next pointer of memp is not used while not in pool).
2374 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2377 2007-04-23 Simon Goldschmidt
2378 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2379 in NULL reference for incoming TCP packets". Loopif has to be configured
2380 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2381 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2382 putting packets on a list that is fed to the stack by calling loopif_poll()
2383 (single-thread / NO_SYS / polling environment where e.g.
2384 netif->input() = ip_input).
2386 2007-04-17 Jonathan Larmour
2387 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2388 the difference between two u16_t's.
2389 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2390 MEMP_NUM_NETCONN in sockets.c right now.
2392 2007-04-12 Jonathan Larmour
2393 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2395 2007-04-12 Kieran Mansley
2396 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2397 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2399 2007-04-11 Simon Goldschmidt
2400 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2401 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2402 pbuf.c: removed functions no needed any more (by etharp).
2404 2007-04-11 Kieran Mansley
2405 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2406 "Constant is long" warnings with 16bit compilers. Contributed by
2407 avatar@mmlab.cse.yzu.edu.tw
2409 2007-04-05 Frédéric Bernon, Jonathan Larmour
2410 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2411 the mailbox is active". Now, the post is only done during a connect, and do_send,
2412 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2414 2007-04-03 Frédéric Bernon
2415 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2416 packets. See patch #5834.
2418 2007-03-30 Frédéric Bernon
2419 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2420 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2422 2007-03-30 Frédéric Bernon
2423 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2424 others environment defines (these were too "generic").
2426 2007-03-28 Frédéric Bernon
2427 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2428 result and can cause a crash. lwip_send now check netbuf_ref result.
2430 2007-03-28 Simon Goldschmidt
2431 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2432 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2433 defined. This is the way it should have been already (looking at
2436 2007-03-28 Kieran Mansley
2437 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2438 IP and TCP headers *and* physical link headers
2440 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2441 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2442 to send some garbage. It is not a definitive solution, but the patch does solve
2443 the problem for most cases.
2445 2007-03-22 Frédéric Bernon
2446 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2448 2007-03-22 Frédéric Bernon
2449 * api_lib.c: somes resources couldn't be freed if there was errors during
2450 netconn_new_with_proto_and_callback.
2452 2007-03-22 Frédéric Bernon
2453 * ethernetif.c: update netif->input calls to check return value. In older ports,
2454 it's a good idea to upgrade them, even if before, there could be another problem
2455 (access to an uninitialized mailbox).
2457 2007-03-21 Simon Goldschmidt
2458 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2459 by casting to unsigned).
2461 2007-03-21 Frédéric Bernon
2462 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2463 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2464 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2465 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2466 faster and more reliable communication between api_lib and tcpip.
2468 2007-03-21 Frédéric Bernon
2469 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2471 2007-03-21 Frédéric Bernon
2472 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2474 2007-03-21 Kieran Mansley
2475 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2478 2007-03-21 Kieran Mansley
2479 * Fix all uses of pbuf_header to check the return value. In some
2480 cases just assert if it fails as I'm not sure how to fix them, but
2481 this is no worse than before when they would carry on regardless
2484 2007-03-21 Kieran Mansley
2485 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2486 comment out missing header include in icmp.c
2488 2007-03-20 Frédéric Bernon
2489 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2490 synchronized with memp.h.
2492 2007-03-20 Frédéric Bernon
2493 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2494 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2495 network interfaces. Also fix a compiler warning.
2497 2007-03-20 Kieran Mansley
2498 * udp.c: Only try and use pbuf_header() to make space for headers if
2499 not a ROM or REF pbuf.
2501 2007-03-19 Frédéric Bernon
2502 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2505 2007-03-19 Frédéric Bernon
2506 * Remove unimplemented "memp_realloc" function from memp.h.
2508 2007-03-11 Simon Goldschmidt
2509 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2512 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2513 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2514 (missing `const' qualifier in socket functions), to get more compatible to
2515 standard POSIX sockets.
2517 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2518 * sockets.c: Add asserts inside bind, connect and sendto to check input
2519 parameters. Remove excessive set_errno() calls after get_socket(), because
2520 errno is set inside of get_socket(). Move last sock_set_errno() inside
2523 2007-03-09 Simon Goldschmidt
2524 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2525 was allocated too small.
2527 2007-03-06 Simon Goldschmidt
2528 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2529 the stack from concurrent access.
2531 2007-03-06 Frédéric Bernon, Dmitry Potapov
2532 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2533 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2535 2007-03-06 Simon Goldschmidt
2536 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2537 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2539 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2540 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2541 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2542 Allow to do ARP processing for incoming packets inside tcpip_thread
2543 (protecting ARP layer against concurrent access). You can also disable
2544 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2545 Older ports have to use tcpip_ethinput.
2547 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2548 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2549 from pointer target type"
2551 2007-03-05 Frédéric Bernon
2552 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2553 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2555 2007-03-04 Frédéric Bernon
2556 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2559 2007-03-04 Frédéric Bernon
2560 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2562 The api_msg struct stay on the stack (not moved to netconn struct).
2564 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2565 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2566 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2567 Also fixed cast warning in pbuf_alloc()
2569 2007-03-04 Simon Goldschmidt
2570 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2571 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2573 2007-03-03 Frédéric Bernon
2574 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2575 It is static, and never used in udp.c except udp_init().
2577 2007-03-02 Simon Goldschmidt
2578 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2579 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2580 initialized before tcpip_thread is running (e.g. before OS is started)
2582 2007-03-02 Frédéric Bernon
2583 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2586 2007-02-28 Kieran Mansley
2587 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2588 outside the region of the pbuf by pbuf_header()
2590 2007-02-28 Kieran Mansley
2591 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2592 when supplied timeout is also non-zero
2596 2006-12-05 Leon Woestenberg
2597 * CHANGELOG: Mention STABLE-1.2.0 release.
2601 2006-12-01 Christiaan Simons
2602 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2603 Note this is a workaround. Currently I have no other options left.
2605 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2606 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2607 to include/lwip/opt.h.
2608 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2609 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2610 * opt.h: Add above new options.
2612 2006-08-18 Christiaan Simons
2613 * tcp_{in,out}.c: added SNMP counters.
2614 * ipv4/ip.c: added SNMP counters.
2615 * ipv4/ip_frag.c: added SNMP counters.
2617 2006-08-08 Christiaan Simons
2618 * etharp.{c,h}: added etharp_find_addr() to read
2619 (stable) ethernet/IP address pair from ARP table
2621 2006-07-14 Christiaan Simons
2622 * mib_structs.c: added
2623 * include/lwip/snmp_structs.h: added
2624 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2626 2006-07-06 Christiaan Simons
2627 * snmp/asn1_{enc,dec}.c added
2629 * snmp/msg_{in,out}.c added
2630 * include/lwip/snmp_asn1.h added
2631 * include/lwip/snmp_msg.h added
2632 * doc/snmp_agent.txt added
2634 2006-03-29 Christiaan Simons
2635 * inet.c, inet.h: Added platform byteswap support.
2636 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2637 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2641 2006-11-30 Christiaan Simons
2642 * dhcp.c: Fixed false triggers of request_timeout.
2644 2006-11-28 Christiaan Simons
2645 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2647 2006-10-11 Christiaan Simons
2648 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2649 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2650 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2651 identifier from 170 to 136 (bug #17574).
2653 2006-10-10 Christiaan Simons
2654 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2656 2006-08-17 Christiaan Simons
2657 * udp.c: Fixed bug #17200, added check for broadcast
2658 destinations for PCBs bound to a unicast address.
2660 2006-08-07 Christiaan Simons
2661 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2663 2006-06-27 Christiaan Simons
2664 * api_msg.c: Applied patch for cold case (bug #11135).
2665 In accept_function() ensure newconn->callback is always initialized.
2667 2006-06-15 Christiaan Simons
2668 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2669 facilitate printing of mem_size_t and u16_t statistics.
2671 2006-06-14 Christiaan Simons
2672 * api_msg.c: Applied patch #5146 to handle allocation failures
2673 in accept() by Kevin Lawson.
2675 2006-05-26 Christiaan Simons
2676 * api_lib.c: Removed conn->sem creation and destruction
2677 from netconn_write() and added sys_sem_new to netconn_new_*.
2681 2006-03-03 Christiaan Simons
2682 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2683 access and added pbuf_alloc() return value checks.
2685 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2686 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2687 now handled by the checksum routine properly.
2689 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2690 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2691 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2693 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2694 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2695 submitted by Mitrani Hiroshi.
2697 2005-12-15 Christiaan Simons
2698 * inet.c: Disabled the added summing routine to preserve code space.
2700 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2701 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2702 Added Curt McDowell's optimized checksumming routine for future
2703 inclusion. Need to create test case for unaliged, aligned, odd,
2704 even length combination of cases on various endianess machines.
2706 2005-12-09 Christiaan Simons
2707 * inet.c: Rewrote standard checksum routine in proper portable C.
2709 2005-11-25 Christiaan Simons
2710 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2711 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2712 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2714 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2715 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2716 routine by Peter Jolasson.
2717 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2719 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2720 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2721 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2723 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2724 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2726 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2727 * udp.c: UDP pcb->recv() was called even when it was NULL.
2731 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2732 * etharp.*: Disabled multiple packets on the ARP queue.
2733 This clashes with TCP queueing.
2735 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2736 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2737 Halved the ARP period, doubled the period counts.
2738 ETHARP_MAX_PENDING now should be at least 2. This prevents
2739 the counter from reaching 0 right away (which would allow
2740 too little time for ARP responses to be received).
2742 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2743 * dhcp.c: Decline messages were not multicast but unicast.
2744 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2745 Do not try hard to insert arbitrary packet's source address,
2746 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2747 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2748 querying an address will see it appear in the cache (DHCP could
2749 suffer from this when a server invalidly gave an in-use address.)
2750 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2751 comparing network addresses (identifiers), not the network masks
2753 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2754 IP address actually belongs to the network of the given interface.
2756 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2757 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2761 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2762 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2763 even if one is already pending, if the rcv_wnd is above a threshold
2764 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2765 delayed ACK in order to open the window if the stack is only receiving data.
2767 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2768 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2770 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2771 * etharp.c: Make sure the first pbuf queued on an ARP entry
2772 is properly ref counted.
2774 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2775 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2776 warnings about comparison.
2777 * pbuf.c: Stopped compiler complaining of empty if statement
2778 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2779 * tcp.c: Stopped compiler complaining of empty if statement
2780 when LWIP_DEBUGF() empty.
2781 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2782 * inet.c: Added a couple of casts to quiet the compiler.
2783 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2785 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2786 * inet.c: Made data types consistent in inet_ntoa().
2787 Added casts for return values of checksum routines, to pacify compiler.
2788 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2789 Small corrections to some debugging statements, to pacify compiler.
2791 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2792 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2793 * ethernetif.c Updated low_level_output() to match prototype for
2794 netif->linkoutput and changed low_level_input() similarly for consistency.
2795 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2796 of raw_recv() in raw.h and so avoid compiler error.
2797 * sockets.c: Added trivial (int) cast to keep compiler happier.
2798 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2804 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2805 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2806 your cc.h file defines this either 1 or 0. If non-defined,
2808 * .c: Added <string.h> and <errno.h> includes where used.
2809 * etharp.c: Made some array indices unsigned.
2811 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2812 * netif.*: Added netif_set_up()/down().
2813 * dhcp.c: Changes to restart program flow.
2815 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2816 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2817 single-pass lookup for different candidates. Should exploit locality.
2819 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2820 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2821 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2822 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2823 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2827 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2828 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2829 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2830 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2831 is to prefix the 14-bit Ethernet headers with two padding bytes.
2833 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2834 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2835 * etharp.c: Fixed the case where the packet that initiates the ARP request
2836 is not queued, and gets lost. Fixed the case where the packets destination
2837 address is already known; we now always queue the packet and perform an ARP
2844 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2845 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2846 * Fixed two possible NULL references in rare cases.
2852 * Fixed DHCP which did not include the IP address in DECLINE messages.
2856 * etharp.c has been hauled over a bit.
2862 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2863 * Packets sent from ARP queue had invalid source hardware address.
2867 * Pass-by ARP requests do now update the cache.
2871 * No longer dependent on ctype.h.
2872 * New socket options.
2873 * Raw IP pcb support.
2879 * Some debug formatters and casts fixed.
2880 * Numereous fixes in PPP.
2884 * DEBUGF now is LWIP_DEBUGF
2885 * pbuf_dechain() has been re-enabled.
2886 * Mentioned the changed use of CVS branches in README.
2892 * Fixed pool pbuf memory leak in pbuf_alloc().
2893 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2894 Reported by Savin Zlobec.
2896 * PBUF_POOL chains had their tot_len field not set for non-first
2897 pbufs. Fixed in pbuf_alloc().
2901 * Added PPP stack contributed by Marc Boucher
2905 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2907 * ARP queueuing now queues the latest packet instead of the first.
2908 This is the RFC recommended behaviour, but can be overridden in
2915 * TCP has been fixed to deal with the new use of the pbuf->ref
2918 * DHCP dhcp_inform() crash bug fixed.
2922 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2923 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2924 Implemented by David Haas.
2930 * The packet buffer implementation has been enhanced to support
2931 zero-copy and copy-on-demand for packet buffers which have their
2932 payloads in application-managed memory.
2933 Implemented by David Haas.
2935 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2936 if an outgoing packet can be directly sent on the link, or perform
2937 a copy-on-demand when necessary.
2939 The application can safely assume the packet is sent, and the RAM
2940 is available to the application directly after calling udp_send()
2941 or similar function.
2945 * ARP_QUEUEING should now correctly work for all cases, including
2947 Implemented by Leon Woestenberg.
2951 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2952 to a '0.0.0.0' IP address.
2954 * The packet buffer implementation is changed. The pbuf->ref counter
2955 meaning has changed, and several pbuf functions have been
2956 adapted accordingly.
2958 * netif drivers have to be changed to set the hardware address length field
2959 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2960 See the contrib/ports/c16x cs8900 driver as a driver example.
2962 * netif's have a dhcp field that must be initialized to NULL by the driver.
2963 See the contrib/ports/c16x cs8900 driver as a driver example.
2965 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2966 logged in CVS but have not been explained here.
2968 (0.5.3) Changes since version 0.5.2
2972 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2973 threads because it wasn't protected by semaphores.
2977 * struct ip_addr now packed.
2979 * The name of the time variable in arp.c has been changed to ctime
2980 to avoid conflicts with the time() function.
2982 (0.5.2) Changes since version 0.5.1
2986 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2990 * A bug in tcp_parseopt() could cause the stack to hang because of a
2991 malformed TCP option.
2993 * The address of new connections in the accept() function in the BSD
2994 socket library was not handled correctly.
2996 * pbuf_dechain() did not update the ->tot_len field of the tail.
2998 * Aborted TCP connections were not handled correctly in all
3003 * All protocol header structs are now packed.
3005 * The ->len field in the tcp_seg structure now counts the actual
3006 amount of data, and does not add one for SYN and FIN segments.
3008 (0.5.1) Changes since version 0.5.0
3012 * Possible to run as a user process under Linux.
3014 * Preliminary support for cross platform packed structs.
3016 * ARP timer now implemented.
3020 * TCP output queue length was badly initialized when opening
3023 * TCP delayed ACKs were not sent correctly.
3025 * Explicit initialization of BSS segment variables.
3027 * read() in BSD socket library could drop data.
3029 * Problems with memory alignment.
3031 * Situations when all TCP buffers were used could lead to
3034 * TCP MSS option wasn't parsed correctly.
3036 * Problems with UDP checksum calculation.
3038 * IP multicast address tests had endianess problems.
3040 * ARP requests had wrong destination hardware address.
3044 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3046 * A ->linkoutput() member was added to struct netif.
3048 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3050 * ntoh* macros are now null definitions for big endian CPUs.
3052 (0.5.0) Changes since version 0.4.2
3056 * Redesigned operating system emulation layer to make porting easier.
3058 * Better control over TCP output buffers.
3060 * Documenation added.
3064 * Locking issues in buffer management.
3066 * Bugfixes in the sequential API.
3068 * IP forwarding could cause memory leakage. This has been fixed.
3072 * Directory structure somewhat changed; the core/ tree has been
3075 (0.4.2) Changes since version 0.4.1
3079 * Experimental ARP implementation added.
3081 * Skeleton Ethernet driver added.
3083 * Experimental BSD socket API library added.
3087 * In very intense situations, memory leakage could occur. This has
3092 * Variables named "data" and "code" have been renamed in order to
3093 avoid name conflicts in certain compilers.
3095 * Variable++ have in appliciable cases been translated to ++variable
3096 since some compilers generate better code in the latter case.
3098 (0.4.1) Changes since version 0.4
3102 * TCP: Connection attempts time out earlier than data
3103 transmissions. Nagle algorithm implemented. Push flag set on the
3104 last segment in a burst.
3106 * UDP: experimental support for UDP-Lite extensions.
3110 * TCP: out of order segments were in some cases handled incorrectly,
3111 and this has now been fixed. Delayed acknowledgements was broken
3112 in 0.4, has now been fixed. Binding to an address that is in use
3113 now results in an error. Reset connections sometimes hung an
3114 application; this has been fixed.
3116 * Checksum calculation sometimes failed for chained pbufs with odd
3117 lengths. This has been fixed.
3119 * API: a lot of bug fixes in the API. The UDP API has been improved
3120 and tested. Error reporting and handling has been
3121 improved. Logical flaws and race conditions for incoming TCP
3122 connections has been found and removed.
3124 * Memory manager: alignment issues. Reallocating memory sometimes
3125 failed, this has been fixed.
3127 * Generic library: bcopy was flawed and has been fixed.
3131 * API: all datatypes has been changed from generic ones such as
3132 ints, to specified ones such as u16_t. Functions that return
3133 errors now have the correct type (err_t).
3135 * General: A lot of code cleaned up and debugging code removed. Many
3136 portability issues have been fixed.
3138 * The license was changed; the advertising clause was removed.
3142 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3143 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3146 (0.4) Changes since version 0.3.1
3148 * Memory management has been radically changed; instead of
3149 allocating memory from a shared heap, memory for objects that are
3150 rapidly allocated and deallocated is now kept in pools. Allocation
3151 and deallocation from those memory pools is very fast. The shared
3152 heap is still present but is used less frequently.
3154 * The memory, memory pool, and packet buffer subsystems now support
3155 4-, 2-, or 1-byte alignment.
3157 * "Out of memory" situations are handled in a more robust way.
3159 * Stack usage has been reduced.
3161 * Easier configuration of lwIP parameters such as memory usage,
3162 TTLs, statistics gathering, etc. All configuration parameters are
3163 now kept in a single header file "lwipopts.h".
3165 * The directory structure has been changed slightly so that all
3166 architecture specific files are kept under the src/arch
3169 * Error propagation has been improved, both in the protocol modules
3172 * The code for the RTXC architecture has been implemented, tested
3175 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3176 the Internet checksum modules.
3178 * Bugs related to porting between a 32-bit and a 16-bit architecture
3179 have been found and corrected.
3181 * The license has been changed slightly to conform more with the
3182 original BSD license, including the advertisement clause.
3184 (0.3.1) Changes since version 0.3
3186 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3187 RAM never returned the RAM when the pbuf was deallocated.
3189 * TCP congestion control, window updates and retransmissions did not
3190 work correctly. This has now been fixed.
3192 * Bugfixes in the API.
3194 (0.3) Changes since version 0.2
3196 * New and improved directory structure. All include files are now
3197 kept in a dedicated include/ directory.
3199 * The API now has proper error handling. A new function,
3200 netconn_err(), now returns an error code for the connection in
3203 * Improvements in the memory management subsystem. The system now
3204 keeps a pointer to the lowest free memory block. A new function,
3205 mem_malloc2() tries to allocate memory once, and if it fails tries
3206 to free some memory and retry the allocation.
3208 * Much testing has been done with limited memory
3209 configurations. lwIP now does a better job when overloaded.
3211 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3213 * Many bugfixes in the TCP code:
3215 - Fixed a bug in tcp_close().
3217 - The TCP receive window was incorrectly closed when out of
3218 sequence segments was received. This has been fixed.
3220 - Connections are now timed-out of the FIN-WAIT-2 state.
3222 - The initial congestion window could in some cases be too
3223 large. This has been fixed.
3225 - The retransmission queue could in some cases be screwed up. This
3228 - TCP RST flag now handled correctly.
3230 - Out of sequence data was in some cases never delivered to the
3231 application. This has been fixed.
3233 - Retransmitted segments now contain the correct acknowledgment
3234 number and advertised window.
3236 - TCP retransmission timeout backoffs are not correctly computed
3237 (ala BSD). After a number of retransmissions, TCP now gives up
3240 * TCP connections now are kept on three lists, one for active
3241 connections, one for listening connections, and one for
3242 connections that are in TIME-WAIT. This greatly speeds up the fast
3243 timeout processing for sending delayed ACKs.
3245 * TCP now provides proper feedback to the application when a
3246 connection has been successfully set up.
3248 * More comments have been added to the code. The code has also been
3249 somewhat cleaned up.
3251 (0.2) Initial public release.