5 * [Enter new changes just after this line - do not remove this line]
9 2011-09-21: Simon Goldschmidt
10 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
11 send (TCP only, bug #33820)
13 2011-09-21: Simon Goldschmidt
14 * init.c: Converted runtime-sanity-checks into compile-time checks that can
15 be disabled (since runtime checks can often not be seen on embedded targets)
17 2011-09-11: Simon Goldschmidt
18 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
19 to get a clear separation of which functions an application or port may use
22 2011-09-11: Simon Goldschmidt
23 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
24 initial local TCP/UDP ports (so that different port ranges are used after
25 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
27 2011-09-03: Simon Goldschmidt
28 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
30 2011-08-24: Simon Goldschmidt
31 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
33 2011-07-26: Simon Goldschmidt
34 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
35 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
37 2011-07-21: Simon Goldschmidt (patch by hanhui)
38 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
39 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
40 Also added code to allow ip_forward() to forward non-broadcast packets to
41 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
43 2011-07-21: Simon Goldschmidt
44 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
45 ioctl/FIONREAD return the size of the next pending datagram.
47 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
48 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
51 2011-05-25: Simon Goldschmidt
52 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
53 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
54 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
55 code so that the code is more readable.
57 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
58 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
59 Ivan! (this is work in progress: we're just post release anyway :-)
61 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
62 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
68 2011-09-27: Simon Goldschmidt
69 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
71 2011-09-24: Simon Goldschmidt
72 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
74 2011-09-23: Simon Goldschmidt
75 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
76 the last packet including FIN can lose data
78 2011-09-22: Simon Goldschmidt
79 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
82 2011-09-21: Simon Goldschmidt
83 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
86 2011-09-20: Simon Goldschmidt
87 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
89 2011-09-11: Simon Goldschmidt
90 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
93 2011-09-09: Simon Goldschmidt
94 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
97 2011-09-03: Simon Goldschmidt
98 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
99 is aggregated and sent to application
101 2011-09-01: Simon Goldschmidt
102 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
105 2011-09-01: Simon Goldschmidt
106 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
108 2011-08-24: Simon Goldschmidt
109 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
111 2011-08-24: Simon Goldschmidt
112 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
113 accept() on UDP connections
115 2011-08-24: Simon Goldschmidt
116 * sockets.h: fixed bug #34057 socklen_t should be a typedef
118 2011-08-24: Simon Goldschmidt
119 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
121 2011-08-24: Simon Goldschmidt
122 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
124 2011-08-24: Simon Goldschmidt
125 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
127 2011-08-22: Simon Goldschmidt
128 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
129 merely prevents nagle from not transmitting fast after closing.)
131 2011-07-22: Simon Goldschmidt
132 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
133 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
134 lwip_send() sends as much as possible for non-blocking sockets
136 2011-07-22: Simon Goldschmidt
137 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
138 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
139 at regular intervals from main level.
141 2011-07-21: Simon Goldschmidt
142 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
143 sending an ARP request when an ARP entry is used in the last minute before
146 2011-07-04: Simon Goldschmidt
147 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
149 2011-06-26: Simon Goldschmidt
150 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
151 updating its documentation only.
153 2011-06-26: Simon Goldschmidt
154 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
157 2011-06-26: Simon Goldschmidt
158 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
166 2011-03-27: Simon Goldschmidt
167 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
168 calculate it in tcp_zero_window_probe (the only place where it was used).
170 2010-11-21: Simon Goldschmidt
171 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
174 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
175 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
176 IP_MULTICAST_LOOP at socket- and raw-API level.
178 2010-06-16: Simon Goldschmidt
179 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
180 link-layer-addressed UDP traffic to be received while a netif is down (just
181 like DHCP during configuration)
183 2010-05-22: Simon Goldschmidt
184 * many many files: bug #27352: removed packing from ip_addr_t, the packed
185 version is now only used in protocol headers. Added global storage for
186 current src/dest IP address while in input functions.
188 2010-05-16: Simon Goldschmidt
189 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
190 calculation (and use them throughout the stack where applicable)
192 2010-05-16: Simon Goldschmidt
193 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
194 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
196 2010-05-16: Simon Goldschmidt
197 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
198 MEMP pool instead of the heap
200 2010-05-13: Simon Goldschmidt
201 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
202 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
203 packets to more than one pcb.
205 2010-05-02: Simon Goldschmidt
206 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
207 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
209 2010-04-30: Simon Goldschmidt
210 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
211 take a precalculated checksum, added pbuf_fill_chksum() to copy data
212 into a pbuf and at the same time calculating the checksum for that data
214 2010-04-29: Simon Goldschmidt
215 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
216 2-byte-aligned IP addresses and MAC addresses
218 2010-04-28: Patch by Bill Auerbach
219 * ip.c: Inline generating IP checksum to save a function call
221 2010-04-14: Simon Goldschmidt
222 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
223 tcpip_thread processes messages or timeouts to implement a watchdog.
225 2010-03-28: Simon Goldschmidt
226 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
227 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
229 2010-03-27: Simon Goldschmidt
230 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
231 etharp_query to prevent unnecessary function calls (inspired by
234 2010-03-20: Simon Goldschmidt
235 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
236 since the linker cannot do this automatically to save space.
238 2010-03-20: Simon Goldschmidt
239 * opt.h, etharp.c/.h: Added support for static ARP table entries
241 2010-03-14: Simon Goldschmidt
242 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
243 when creating TCP segments, not when (re-)transmitting them.
245 2010-03-07: Simon Goldschmidt
246 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
247 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
248 This should speed up receiving data on sockets as the select code in
249 event_callback is only executed when select is waiting.
251 2010-03-06: Simon Goldschmidt
252 * tcp_out.c: task #7013 (Create option to have all packets delivered to
253 netif->output in one piece): Always copy to try to create single pbufs
256 2010-03-06: Simon Goldschmidt
257 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
258 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
259 for tcp netconns to receive pbufs, not netbufs; use that function
262 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
263 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
264 Work on tcp_enqueue: Don't waste memory when chaining segments,
265 added option TCP_OVERSIZE to prevent creating many small pbufs when
266 calling tcp_write with many small blocks of data. Instead, pbufs are
267 allocated larger than needed and the space is used for later calls to
270 2010-02-21: Simon Goldschmidt
271 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
274 2010-02-21: Simon Goldschmidt
275 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
276 implementation of tcp to make API usage cleare to application programmers
278 2010-02-14: Simon Goldschmidt/Stephane Lesage
279 * ip_addr.h: Improved some defines working on ip addresses, added faster
280 macro to copy addresses that cannot be NULL
282 2010-02-13: Simon Goldschmidt
283 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
284 blocking send operation)
286 2010-02-12: Simon Goldschmidt
287 * sockets.c/.h: Added a minimal version of posix fctl() to have a
288 standardised way to set O_NONBLOCK for nonblocking sockets.
290 2010-02-12: Simon Goldschmidt
291 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
292 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
293 and dhcp work with user-allocated structs instead of callin mem_malloc
295 2010-02-12: Simon Goldschmidt/Jeff Barber
296 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
297 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
299 2010-02-12: Simon Goldschmidt
300 * sys layer: task #10139 (Prefer statically allocated memory): converted
301 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
302 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
303 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
304 to let sys.h use binary semaphores instead of mutexes - as before)
306 2010-02-09: Simon Goldschmidt (Simon Kallweit)
307 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
308 (Restart system timeout handling)
310 2010-02-09: Simon Goldschmidt
311 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
312 netif.c) - loopif does not have to be created by the port any more,
313 just define LWIP_HAVE_LOOPIF to 1.
315 2010-02-08: Simon Goldschmidt
316 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
317 inet_ntoa_r/ipaddr_ntoa_r
319 2010-02-08: Simon Goldschmidt
320 * netif.h: Added netif_s/get_igmp_mac_filter() macros
322 2010-02-05: Simon Goldschmidt
323 * netif.h: Added function-like macros to get/set the hostname on a netif
325 2010-02-04: Simon Goldschmidt
326 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
327 make changing the actual implementation behind the typedef easier.
329 2010-02-01: Simon Goldschmidt
330 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
331 for allocating memory when getaddrinfo() is called.
333 2010-01-31: Simon Goldschmidt
334 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
335 them once instead of parsing for every option. This also removes
336 the need for mem_malloc from dhcp_recv and makes it possible to
337 correctly retrieve the BOOTP file.
339 2010-01-30: simon Goldschmidt
340 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
343 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
344 * api.h, api_msg.c, sockets.c: Added except set support in select
347 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
348 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
349 Add non-blocking support for connect (partly from patch #6860),
350 plus many cleanups in socket & netconn API.
352 2010-01-27: Simon Goldschmidt
353 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
354 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
356 2010-01-26: Simon Goldschmidt
357 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
359 2010-01-14: Simon Goldschmidt
360 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
361 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
363 2010-01-13: Simon Goldschmidt
364 * mem.c: The heap now may be moved to user-defined memory by defining
365 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
366 (patch #6966 and bug #26133)
368 2010-01-10: Simon Goldschmidt (Bill Auerbach)
369 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
372 2010-01-10: Simon Goldschmidt
373 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
374 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
376 2009-12-31: Simon Goldschmidt
377 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
378 added timers.c/.h: Separated timer implementation from semaphore/mbox
379 implementation, moved timer implementation to timers.c/.h, timers are
380 now only called from tcpip_thread or by explicitly checking them.
383 2009-12-27: Simon Goldschmidt
384 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
385 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
390 2011-04-20: Simon Goldschmidt
391 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
393 2011-04-13: Simon Goldschmidt
394 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
395 using ports in the IANA private/dynamic range (49152 through 65535).
397 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
398 * etharp.h/.c: Fixed broken VLAN support.
400 2011-03-27: Simon Goldschmidt
401 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
402 pcbs) by checking if the pcb was bound (local_port != 0).
404 2011-03-27: Simon Goldschmidt
405 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
407 2011-03-27: Simon Goldschmidt
408 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
409 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
411 2011-03-27: Simon Goldschmidt
412 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
413 is present never times out) by starting retransmission timer before checking
416 2011-03-22: Simon Goldschmidt
417 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
418 calling sio_read_abort() if the file descriptor is valid.
420 2011-03-14: Simon Goldschmidt
421 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
422 more than once can render a socket useless) since it mainly involves changing
423 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
425 2011-03-13: Simon Goldschmidt
426 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
427 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
428 use EALRADY instead of -1
430 2011-03-13: Simon Goldschmidt
431 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
432 connection has been aborted by err_tcp (since this is not a normal closing
435 2011-03-13: Simon Goldschmidt
436 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
437 with pcb->state != CLOSED
439 2011-02-17: Simon Goldschmidt
440 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
443 2011-02-17: Simon Goldschmidt
444 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
446 2011-01-24: Simon Goldschmidt
447 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
449 2010-12-02: Simon Goldschmidt
450 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
452 2010-11-23: Simon Goldschmidt
453 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
454 LWIP_SO_RCVBUF and ioctl/FIONREAD.
456 2010-11-23: Simon Goldschmidt
457 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
458 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
460 2010-11-23: Simon Goldschmidt
461 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
462 refusing 'refused_data' again.
464 2010-11-22: Simon Goldschmidt
465 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
466 after a successful nonblocking connection.
468 2010-11-22: Simon Goldschmidt
469 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
470 must be sent link-local
472 2010-11-22: Simon Goldschmidt
473 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
476 2010-11-20: Simon Goldschmidt
477 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
479 2010-11-20: Simon Goldschmidt
480 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
481 resemble other stacks.
483 2010-11-20: Simon Goldschmidt
484 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
485 no-copy TCP writes will never succeed.
487 2010-11-20: Simon Goldschmidt
488 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
489 not match documentation: return ERR_ARG instead of ERR_VAL if not
490 initialized or wrong argument.
492 2010-10-20: Simon Goldschmidt
493 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
495 2010-10-05: Simon Goldschmidt
496 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
497 replugging the network cable after an AutoIP address was assigned.
499 2010-08-10: Simon Goldschmidt
500 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
502 2010-08-03: Simon Goldschmidt
503 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
505 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
506 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
507 endian architectures)
509 2010-07-28: Simon Goldschmidt
510 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
513 2010-07-27: Simon Goldschmidt
514 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
515 harm but never did anything
517 2010-07-21: Simon Goldschmidt
518 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
521 2010-07-16: Kieran Mansley
522 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
524 2010-07-10: Simon Goldschmidt
525 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
527 2010-06-30: Simon Goldschmidt
528 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
531 2010-06-28: Kieran Mansley
532 * timers.c remove unportable printing of C function pointers
534 2010-06-24: Simon Goldschmidt
535 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
536 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
538 2010-06-24: Simon Goldschmidt
539 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
540 implemented shutdown at socket level.
542 2010-06-21: Simon Goldschmidt
543 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
544 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
545 custom pbufs that reference other (original) pbufs. Additionally set
546 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
548 2010-06-15: Simon Goldschmidt
549 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
551 2010-06-14: Simon Goldschmidt
552 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
554 2010-06-12: Simon Goldschmidt
555 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
558 2010-05-17: Simon Goldschmidt
559 * netdb.c: Correctly NULL-terminate h_addr_list
561 2010-05-16: Simon Goldschmidt
562 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
563 "symbol already defined" i.e. when linking to winsock
565 2010-05-05: Simon Goldschmidt
566 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
569 2010-04-21: Simon Goldschmidt
570 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
573 2010-03-28: Luca Ceresoli
574 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
576 2010-03-27: Luca Ceresoli
577 * mib2.c: patch #7130: remove meaningless const qualifiers
579 2010-03-26: Simon Goldschmidt
580 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
582 2010-03-26: Simon Goldschmidt
583 * various files: Fixed compiling with different options disabled (TCP/UDP),
584 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
586 2010-03-25: Simon Goldschmidt
587 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
589 2010-03-25: Simon Goldschmidt
590 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
591 overrunning our rcv_wnd in ooseq case.
593 2010-03-22: Simon Goldschmidt
594 * tcp.c: tcp_listen() did not copy the pcb's prio.
596 2010-03-19: Simon Goldschmidt
597 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
599 2010-03-14: Simon Goldschmidt
600 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
601 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
602 and basing PBUF_LINK_HLEN on it.
604 2010-03-08: Simon Goldschmidt
605 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
606 when assiging routable address): when checking incoming packets and
607 aborting existing connection on address change, filter out link-local
610 2010-03-06: Simon Goldschmidt
611 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
613 2010-03-06: Simon Goldschmidt
614 * ipv4/ip.c: Don't try to forward link-local addresses
616 2010-03-06: Simon Goldschmidt
617 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
620 2010-03-05: Simon Goldschmidt
621 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
624 2010-03-05: Simon Goldschmidt
625 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
626 into multiple calls to tcp_write.
628 2010-02-21: Simon Goldschmidt
629 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
630 the implementation of DNS_USES_STATIC_BUF==1)
632 2010-02-20: Simon Goldschmidt
633 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
634 close() vs. shutdown(). Now the application does not get any more
635 recv callbacks after calling tcp_close(). Added tcp_shutdown().
637 2010-02-19: Simon Goldschmidt
638 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
639 confusion with realloc()
641 2010-02-15: Simon Goldschmidt/Stephane Lesage
642 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
645 2010-02-14: Simon Goldschmidt
646 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
647 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
648 admin-status of a netif are up
650 2010-02-14: Simon Goldschmidt
651 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
652 reception and is not really necessary
654 2010-02-14: Simon Goldschmidt
655 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
656 request was directed as us (RFC 826, Packet Reception), otherwise
657 only update existing entries; internalized some functions
659 2010-02-14: Simon Goldschmidt
660 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
661 disabled on netif used for PPPoE) by adding a new netif flag
662 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
663 device but prevents usage of ARP (so that ethernet_input can be used
666 2010-02-12: Simon Goldschmidt
667 * netif.c: netif_set_link_up/down: only do something if the link state
670 2010-02-12: Simon Goldschmidt/Stephane Lesage
671 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
674 2010-02-12: Simon Goldschmidt
675 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
677 2010-02-09: Simon Goldschmidt
678 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
679 (recv() makes receive window update for data that wasn't received by
682 2010-02-09: Simon Goldschmidt/Stephane Lesage
683 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
684 or any netconn_recv() error)
686 2010-02-09: Simon Goldschmidt
687 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
689 2010-02-09: Simon Goldschmidt
690 * netif.c: For loopback packets, adjust the stats- and snmp-counters
691 for the loopback netif.
693 2010-02-08: Simon Goldschmidt
694 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
695 since they are not used anywhere else.
697 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
698 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
699 (patch from bug #28798)
701 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
702 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
703 another bug when LWIP_RAND() returns zero.
705 2010-02-04: Simon Goldschmidt
706 * nearly every file: Use macros defined in ip_addr.h (some of them new)
707 to work with IP addresses (preparation for bug #27352 - Change ip_addr
708 from struct to typedef (u32_t) - and better code).
710 2010-01-31: Simon Goldschmidt
711 * netif.c: Don't call the link-callback from netif_set_up/down() since
712 this invalidly retriggers DHCP.
714 2010-01-29: Simon Goldschmidt
715 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
716 portability file inet.h and its contents from the stack: moved htonX-
717 functions to def.h (and the new def.c - they are not ipv4 dependent),
718 let inet.h depend on ip_addr.h and not the other way round.
719 This fixes bug #28732.
721 2010-01-28: Kieran Mansley
722 * tcp.c: Ensure ssthresh >= 2*MSS
724 2010-01-27: Simon Goldschmidt
725 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
726 callback can lead to accessing unallocated memory. As a consequence,
727 ERR_ABRT means the application has called tcp_abort()!
729 2010-01-25: Simon Goldschmidt
730 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
731 not implemented in SNMP): write-only or not-accessible are still
732 returned by getnext (though not by get)
734 2010-01-24: Simon Goldschmidt
735 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
736 not use reserved C/C++ keywords
738 2010-01-23: Simon Goldschmidt
739 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
742 2010-01-21: Simon Goldschmidt
743 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
744 if tcp_enqueue fails) both in raw- and netconn-API
746 2010-01-19: Simon Goldschmidt
747 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
749 2010-01-18: Iordan Neshev/Simon Goldschmidt
750 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
751 bugfix backports from 2.4.x.
753 2010-01-18: Simon Goldschmidt
754 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
756 2010-01-17: Simon Goldschmidt
757 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
758 task #10102: "netconn: clean up conn->err threading issues" by adding
759 error return value to struct api_msg_msg
761 2010-01-17: Simon Goldschmidt
762 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
763 to return err_t (bugs #27709 and #28087)
765 2010-01-14: Simon Goldschmidt
766 * ...: Use typedef for function prototypes throughout the stack.
768 2010-01-13: Simon Goldschmidt
769 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
770 window = 0) by correctly draining recvmbox/acceptmbox
772 2010-01-11: Simon Goldschmidt
773 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
774 erroneous callbacks) by copying the code from recent pppd
776 2010-01-10: Simon Goldschmidt
777 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
779 2010-01-10: Simon Goldschmidt
780 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
782 2010-01-08: Simon Goldschmidt
783 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
785 2010-01-08: Simon Goldschmidt
786 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
787 passed to dns_local_addhost() might be volatile
789 2010-01-07: Simon Goldschmidt
790 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
792 2010-01-06: Simon Goldschmidt
793 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
795 2009-12-31: Simon Goldschmidt
796 * many ppp files: Reorganised PPP source code from ucip structure to pppd
797 structure to easily compare our code against the pppd code (around v2.3.1)
799 2009-12-27: Simon Goldschmidt
800 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
808 2009-10-27 Simon Goldschmidt/Stephan Lesage
809 * netifapi.c/.h: Added netifapi_netif_set_addr()
811 2009-10-07 Simon Goldschmidt/Fabian Koch
812 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
813 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
815 2009-08-26 Simon Goldschmidt/Simon Kallweit
816 * slipif.c/.h: bug #26397: SLIP polling support
818 2009-08-25 Simon Goldschmidt
819 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
820 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
822 2009-08-25 Simon Goldschmidt
823 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
825 2009-08-24 Jakob Stoklund Olesen
826 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
827 to netif_set_link_up().
829 2009-08-23 Simon Goldschmidt
830 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
831 to a human-readable string.
835 2009-12-24: Kieran Mansley
836 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
839 2009-12-06: Simon Goldschmidt
840 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
841 be statically allocated (like in ucip)
843 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
844 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
846 2009-12-03: Simon Goldschmidt
847 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
848 could have non-zero length
850 2009-12-02: Simon Goldschmidt
851 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
852 tcp_input_pcb until after calling the pcb's callbacks
854 2009-11-29: Simon Goldschmidt
855 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
856 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
858 2009-11-29: Simon Goldschmidt
859 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
860 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
862 2009-11-26: Simon Goldschmidt
863 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
866 2009-11-26: Simon Goldschmidt
867 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
868 algorithm at PCB level
870 2009-11-22: Simon Goldschmidt
871 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
873 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
874 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
875 reusing time-wait pcb
877 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
878 * sockets.c: Fixed bug #28062: Data received directly after accepting
879 does not wake up select
881 2009-11-11: Simon Goldschmidt
882 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
884 2009-10-30: Simon Goldschmidt
885 * opt.h: Increased default value for TCP_MSS to 536, updated default
886 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
888 2009-10-28: Kieran Mansley
889 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
890 to follow algorithm from TCP/IP Illustrated
892 2009-10-27: Kieran Mansley
893 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
895 2009-10-25: Simon Goldschmidt
896 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
897 pcb->recv is NULL to keep rcv_wnd correct)
899 2009-10-25: Simon Goldschmidt
900 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
902 2009-10-23: Simon Goldschmidt (David Empson)
903 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
905 2009-10-21: Simon Goldschmidt
906 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
907 trailing 1 byte len (SYN/FIN)
909 2009-10-21: Simon Goldschmidt
910 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
912 2009-10-19: Simon Goldschmidt
913 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
914 conditional code to assert where applicable), check pbuf length before
915 testing for valid reply
917 2009-10-19: Simon Goldschmidt
918 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
919 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
921 2009-10-16: Simon Goldschmidt
922 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
923 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
926 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
927 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
929 2009-10-15: Simon Goldschmidt
930 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
933 2009-10-15: Simon Goldschmidt
934 * autoip.c: Fixed bug #27704: autoip starts with wrong address
935 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
936 of network byte order
938 2009-10-11 Simon Goldschmidt (Jörg Kesten)
939 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
940 which are not consecutive when retransmitting unacked segments
942 2009-10-09 Simon Goldschmidt
943 * opt.h: Fixed default values of some stats to only be enabled if used
944 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
946 2009-08-30 Simon Goldschmidt
947 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
948 function" by checking for loopback before calling ip_frag
950 2009-08-25 Simon Goldschmidt
951 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
953 2009-08-23 Simon Goldschmidt
954 * ppp.c: bug #27078: Possible memory leak in pppInit()
956 2009-08-23 Simon Goldschmidt
957 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
960 2009-08-23 Simon Goldschmidt
961 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
962 Fixed wrong parenthesis, added check in init.c
964 2009-08-23 Simon Goldschmidt
965 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
967 2009-08-23 Simon Goldschmidt
968 * many ppp files: bug #27267: Added include to string.h where needed
970 2009-08-23 Simon Goldschmidt
971 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
978 2009-05-10 Simon Goldschmidt
979 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
980 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
981 one pbuf to help MACs that don't support scatter-gather DMA.
983 2009-05-09 Simon Goldschmidt
984 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
985 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
987 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
988 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
989 extended info about the currently received packet.
991 2009-04-27 Simon Goldschmidt
992 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
994 2009-04-25 Simon Goldschmidt
995 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
996 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
998 2009-04-21 Simon Goldschmidt
999 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1000 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1001 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1002 as an external function for lookup.
1004 2009-04-15 Simon Goldschmidt
1005 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1007 2009-03-31 Kieran Mansley
1008 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1009 TCP timestamp options, off by default. Rework tcp_enqueue() to
1010 take option flags rather than specified option data
1012 2009-02-18 Simon Goldschmidt
1013 * cc.h: Added printf formatter for size_t: SZT_F
1015 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1016 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1019 2009-02-12 Simon Goldschmidt
1020 * init.h: Added LWIP_VERSION to get the current version of the stack
1022 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1023 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1024 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1027 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1028 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1029 is only used by UDPLITE at present, so conditionalise it.
1031 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1032 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1033 "seed" address. This should reduce AUTOIP conflicts if
1034 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1036 2008-10-02 Jonathan Larmour and Rishi Khan
1037 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1040 2008-06-30 Simon Goldschmidt
1041 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1042 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1043 mem_free to run between mem_malloc iterations. Added illegal counter for
1046 2008-06-27 Simon Goldschmidt
1047 * stats.h/.c, some other files: patch #6483: stats module improvement:
1048 Added defines to display each module's statistic individually, added stats
1049 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1051 2008-06-17 Simon Goldschmidt
1052 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1053 (define LWIP_ERR_T in cc.h)
1055 2008-06-17 Simon Goldschmidt
1056 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1059 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1060 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1061 modified version of patch # 6370: Moved loopif code to netif.c so that
1062 loopback traffic is supported on all netifs (all local IPs).
1063 Added option to limit loopback packets for each netifs.
1067 2009-08-12 Kieran Mansley
1068 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1069 out of window or out of order properly
1071 2009-08-12 Kieran Mansley
1072 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1074 2009-07-28 Simon Goldschmidt
1075 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1077 2009-07-27 Kieran Mansley
1078 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1080 2009-07-09 Kieran Mansley
1081 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1082 recv_avail and don't increment counters until message successfully
1085 2009-06-25 Kieran Mansley
1086 * api_msg.c api.h: BUG26722: initialise netconn write variables
1089 2009-06-25 Kieran Mansley
1090 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1092 2009-06-25 Kieran Mansley
1093 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1094 simultaneous close behaviour, and make snd_nxt have the same meaning
1097 2009-05-12 Simon Goldschmidt
1098 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1099 arp_table / uses etharp_query" by adding etharp_gratuitous()
1101 2009-05-12 Simon Goldschmidt
1102 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1103 to the IP header (used by igmp_ip_output_if)
1105 2009-05-06 Simon Goldschmidt
1106 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1107 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1109 2009-05-05 Simon Goldschmidt
1110 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1113 2009-05-04 Simon Goldschmidt
1114 * init.c: snmp was not initialized in lwip_init()
1116 2009-05-04 Frédéric Bernon
1117 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1119 2009-05-03 Simon Goldschmidt
1120 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1121 (and unsent->next == NULL)
1123 2009-05-02 Simon Goldschmidt
1124 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1125 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1127 2009-05-02 Simon Goldschmidt
1128 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1130 2009-05-01 Simon Goldschmidt
1131 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1133 2009-05-01 Simon Goldschmidt
1134 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1136 2009-04-29 Frédéric Bernon
1137 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1138 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1139 of broadcast packets even when this option wasn't set. Port maintainers
1140 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1141 If you want this option also filter broadcast on recv operations, you also
1142 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1144 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1145 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1146 DHCP/AUTOIP cooperation
1148 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1149 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1150 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1151 right place in tcp_output and tcp_rexmit).
1153 2009-04-25 Simon Goldschmidt
1154 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1155 when debugging": memp_sizes contained the wrong sizes (including sanity
1156 regions); memp pools for MEM_USE_POOLS were too small
1158 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1159 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1160 behavior, with with ip address string not ended by a '\0', a space or a
1163 2009-04-19 Simon Goldschmidt
1164 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1165 pcb->err is called, not pcb->connected (with an error code).
1167 2009-04-19 Simon Goldschmidt
1168 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1169 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1171 2009-04-19 Simon Goldschmidt
1172 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1173 in the header pbuf, not the data pbuf)
1175 2009-04-18 Simon Goldschmidt
1176 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1178 2009-04-15 Simon Goldschmidt
1179 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1181 2009-04-15 Simon Goldschmidt
1182 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1184 2009-04-15 Simon Goldschmidt
1185 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1186 ip_hinted_output() (for smaller code mainly)
1188 2009-04-15 Simon Goldschmidt
1189 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1191 2009-04-15 Simon Goldschmidt
1192 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1193 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1194 is big enough in dhcp_start
1196 2009-04-15 Simon Goldschmidt
1197 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1199 2009-04-15 Simon Goldschmidt
1200 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1202 2009-04-15 Simon Goldschmidt
1203 * sockets.c: bug #26121: set_errno can be overridden
1205 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1206 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1209 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1210 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1213 2009-03-31 Kieran Mansley
1214 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1215 updates are calculated and sent (BUG20515)
1217 * tcp_in.c: cope with SYN packets received during established states,
1218 and retransmission of initial SYN.
1220 * tcp_out.c: set push bit correctly when tcp segments are merged
1222 2009-03-27 Kieran Mansley
1223 * tcp_out.c set window correctly on probes (correcting change made
1226 2009-03-26 Kieran Mansley
1227 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1228 connections where no reset required (bug #25622)
1230 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1233 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1234 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1235 too small depending on MEM_ALIGNMENT
1237 2009-02-16 Simon Goldschmidt
1238 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1239 converted size argument of netconn_write to 'size_t'
1241 2009-02-16 Simon Goldschmidt
1242 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1243 by moving accept callback function pointer to TCP_PCB_COMMON
1245 2009-02-12 Simon Goldschmidt
1246 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1249 2009-02-11 Simon Goldschmidt
1250 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1252 2009-02-11 Simon Goldschmidt
1253 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1254 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1256 2009-02-10 Simon Goldschmidt
1257 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1258 Accepts_pending is decrease on a corresponding listen pcb when a connection
1259 in state SYN_RCVD is close.
1261 2009-01-28 Jonathan Larmour
1262 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1265 2008-12-19 Simon Goldschmidt
1266 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1268 2008-12-10 Tamas Somogyi, Frédéric Bernon
1269 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1270 port uses deleted netbuf.
1272 2008-10-18 Simon Goldschmidt
1273 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1276 2008-10-15 Simon Goldschmidt
1277 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1278 by packing the struct ip_reass_helper.
1280 2008-10-03 David Woodhouse, Jonathan Larmour
1281 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1283 2008-10-02 Jonathan Larmour
1284 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1285 padding is included.
1287 2008-09-30 Jonathan Larmour
1288 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1289 assertion check that addrlen isn't NULL.
1291 2008-09-30 Jonathan Larmour
1292 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1294 2008-08-26 Simon Goldschmidt
1295 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1296 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1298 2008-08-14 Simon Goldschmidt
1299 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1300 tcp_close returns != ERR_OK)
1302 2008-07-08 Frédéric Bernon
1303 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1304 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1306 2008-06-24 Jonathan Larmour
1307 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1308 if tcp_seg_copy fails.
1310 2008-06-17 Simon Goldschmidt
1311 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1312 and created defines for swapping bytes and folding u32 to u16.
1314 2008-05-30 Kieran Mansley
1315 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1316 rather than rcv_ann_wnd when deciding if packets are in-window.
1317 Contributed by <arasmussen@consultant.datasys.swri.edu>
1319 2008-05-30 Kieran Mansley
1320 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1321 passing as function pointers when MEM_LIBC_MALLOC is defined.
1323 2008-05-09 Jonathan Larmour
1324 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1325 stop it being treated as a fatal error.
1327 2008-04-15 Simon Goldschmidt
1328 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1331 2008-03-27 Simon Goldschmidt
1332 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1333 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1334 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1335 or heap memory from interrupt context
1337 2008-03-26 Simon Goldschmidt
1338 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1339 host sent a zero mss as TCP option.
1346 2008-03-10 Jonathan Larmour
1347 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1348 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1350 2008-01-22 Frédéric Bernon
1351 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1352 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1354 2008-01-14 Frédéric Bernon
1355 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1356 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1357 tcp_recv callback (see rawapi.txt).
1359 2008-01-14 Frédéric Bernon, Marc Chaland
1360 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1362 2008-01-12 Frédéric Bernon
1363 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1364 netconn::sem per netconn::op_completed like suggested for the task #7490
1365 "Add return value to sys_mbox_post".
1367 2008-01-12 Frédéric Bernon
1368 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1369 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1370 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1372 2008-01-10 Frédéric Bernon
1373 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1374 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1375 "blocking" ("block" parameter = 1).
1377 2008-01-10 Frédéric Bernon
1378 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1379 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1380 "Add return value to sys_mbox_post".
1382 2008-01-05 Frédéric Bernon
1383 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1384 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1385 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1386 indicate the number of pointers query by the mailbox. There is three defines
1387 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1388 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1389 parameter in your implementation, but to ignore it to keep the previous behavior.
1390 The new sys_mbox_trypost function return a value to know if the mailbox is
1391 full or if the message is posted. Take a look to sys_arch.txt for more details.
1392 This new function is used in tcpip_input (so, can be called in an interrupt
1393 context since the function is not blocking), and in recv_udp and recv_raw.
1395 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1396 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1397 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1398 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1399 documentation in the rawapi.txt file.
1401 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1402 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1404 2007-12-31 Frédéric Bernon, Luca Ceresoli
1405 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1406 in autoip". The change in etharp_raw could be removed, since all calls to
1407 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1408 wrong in the future.
1410 2007-12-30 Frédéric Bernon, Tom Evans
1411 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1412 Filtering" reported by Tom Evans.
1414 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1415 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1416 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1417 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1418 keep accepting new connections.
1420 2007-12-13 Frédéric Bernon
1421 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1422 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1424 2007-12-12 Frédéric Bernon
1425 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1426 are the one which have ram usage.
1428 2007-12-05 Frédéric Bernon
1429 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1430 set of variables (=0) or a local one (=1). In this last case, your port should
1431 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1432 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1434 2007-12-03 Simon Goldschmidt
1435 * ip.c: ip_input: check if a packet is for inp first before checking all other
1436 netifs on netif_list (speeds up packet receiving in most cases)
1438 2007-11-30 Simon Goldschmidt
1439 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1440 UDP: move a (connected) pcb selected for input to the front of the list of
1441 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1444 2007-11-28 Simon Goldschmidt
1445 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1447 2007-11-25 Simon Goldschmidt
1448 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1451 2007-11-24 Simon Goldschmidt
1452 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1453 to the new file netdb.c; included lwip_getaddrinfo.
1455 2007-11-21 Simon Goldschmidt
1456 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1457 based on the MTU of the netif used to send. Enabled by default. Disable by
1458 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1460 2007-11-19 Frédéric Bernon
1461 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1462 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1463 copy dns payload to parse the response), return an error if there is no place
1464 for a new query, and fix some minor problems.
1466 2007-11-16 Simon Goldschmidt
1467 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1468 removed files: core/inet.c, core/inet6.c
1469 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1470 inet and chksum part; changed includes in all lwIP files as appropriate
1472 2007-11-16 Simon Goldschmidt
1473 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1474 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1475 (gethostbyname/gethostbyname_r).
1477 2007-11-15 Jim Pettinato, Frédéric Bernon
1478 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1479 requests with RAW api interface. Initialization is done in lwip_init() with
1480 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1481 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1482 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1483 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1484 list with points to improve.
1486 2007-11-06 Simon Goldschmidt
1487 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1488 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1489 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1491 2007-11-06 Simon Goldschmidt
1492 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1493 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1494 implementation from netconn api applications.
1496 2007-11-03 Frédéric Bernon
1497 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1498 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1499 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1500 it. This is a first release which have to be improve for TCP. Note it used the
1501 netconn::recv_avail which need to be more "thread-safe" (note there is already
1502 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1504 2007-11-01 Frédéric Bernon, Marc Chaland
1505 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1506 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1507 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1508 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1509 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1511 2007-10-24 Frédéric Bernon
1512 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1513 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1514 some code (like we have talk in "patch #5919 : Create compile switch to remove
1515 select code"), but it could be done later.
1517 2007-10-08 Simon Goldschmidt
1518 * many files: Changed initialization: many init functions are not needed any
1519 more since we now rely on the compiler initializing global and static
1522 2007-10-06 Simon Goldschmidt
1523 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1524 to enqueue the received pbufs so that multiple packets can be reassembled
1525 simultaneously and no static reassembly buffer is needed.
1527 2007-10-05 Simon Goldschmidt
1528 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1529 all netifs (or ports) can use it.
1531 2007-10-05 Frédéric Bernon
1532 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1533 common function to reduce a little bit the footprint (for all functions using
1534 only the "netif" parameter).
1536 2007-10-03 Frédéric Bernon
1537 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1538 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1539 a little bit the footprint (for all functions using only the "netif" parameter).
1541 2007-09-15 Frédéric Bernon
1542 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1543 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1544 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1545 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1547 2007-09-10 Frédéric Bernon
1548 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1549 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1550 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1551 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1552 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1553 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1554 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1555 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1556 when it's queried (any direct call to "sysuptime" is changed by a call to
1557 snmp_get_sysuptime).
1559 2007-09-09 Frédéric Bernon, Bill Florac
1560 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1561 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1562 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1563 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1564 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1565 the next query message to receive the matching multicast streams).
1567 2007-09-08 Frédéric Bernon
1568 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1569 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1570 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1571 Enable to access to these fields with LWIP_TCP=0.
1573 2007-09-05 Frédéric Bernon
1574 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1575 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1576 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1577 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1578 help to reduce footprint, and to reduce "visibility" on the Internet.
1580 2007-09-05 Frédéric Bernon, Bill Florac
1581 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1582 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1583 parameters have to be provided: a task name, and a task stack size. For this
1584 one, since it's platform dependant, you could define the best one for you in
1585 your lwipopts.h. For port maintainers, you can just add these new parameters
1586 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1589 2007-09-05 Frédéric Bernon
1590 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1591 inside init.c for task #7142 "Sanity check user-configurable values".
1593 2007-09-04 Frédéric Bernon, Bill Florac
1594 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1595 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1596 value). It will avoid potential fragmentation problems, use a counter to know
1597 how many times a group is used on an netif, and free it when all applications
1598 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1599 check if LWIP_IGMP!=0).
1601 2007-09-03 Frédéric Bernon
1602 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1603 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1604 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1605 and/or the "interface" field (for netconn layer), for join/leave operations.
1606 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1607 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1609 2007-08-30 Frédéric Bernon
1610 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1611 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1612 with other API (application based on raw API, or future "socket2" API). Ports
1613 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1615 2007-08-30 Frédéric Bernon, Jonathan Larmour
1616 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1617 user-configurable values".
1619 2007-08-29 Frédéric Bernon
1620 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1621 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1622 spirit than the others modules. Modify some IGMP debug traces.
1624 2007-08-29 Frédéric Bernon
1625 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1626 Add lwip_init function to regroup all modules initializations, and to provide
1627 a place to add code for task #7142 "Sanity check user-configurable values".
1628 Ports maintainers should remove direct initializations calls from their code,
1629 and add init.c in their makefiles. Note that lwip_init() function is called
1630 inside tcpip_init, but can also be used by raw api users since all calls are
1631 disabled when matching options are disabled. Also note that their is new options
1632 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1634 2007-08-26 Marc Boucher
1635 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1636 since they can under certain circumstances be called with an invalid conn
1637 pointer after the connection has been closed (and conn has been freed).
1639 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1640 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1641 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1643 2007-08-22 Frédéric Bernon
1644 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1645 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1647 2007-08-22 Frédéric Bernon
1648 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1649 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1650 name is tcpip_input (we keep the name of 1.2.0 function).
1652 2007-08-17 Jared Grubb
1653 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1654 settings into new memp_std.h and optional user file lwippools.h. This adds
1655 more dynamic mempools, and allows the user to create an arbitrary number of
1656 mempools for mem_malloc.
1658 2007-08-16 Marc Boucher
1659 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1660 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1661 close the connection.
1663 2007-08-16 Marc Boucher
1664 * sockets.c: lwip_accept(): check netconn_peer() error return.
1666 2007-08-16 Marc Boucher
1667 * mem.c, mem.h: Added mem_calloc().
1669 2007-08-16 Marc Boucher
1670 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1671 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1672 and starving other message types.
1673 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1675 2007-08-16 Marc Boucher
1676 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1677 type and flgs (later renamed to flags).
1678 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1679 Improved lwip_recvfrom(). TCP push now propagated.
1681 2007-08-16 Marc Boucher
1682 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1685 2007-08-16 Marc Boucher
1686 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1687 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1688 Added PPPoE support and various PPP improvements.
1690 2007-07-25 Simon Goldschmidt
1691 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1692 making netbuf_copy_partial use this function.
1694 2007-07-25 Simon Goldschmidt
1695 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1696 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1699 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1700 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1701 a link callback in the netif struct, and functions to handle it. Be carefull
1702 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1703 if you want to be sure to be compatible with future changes...
1705 2007-06-30 Frédéric Bernon
1706 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1708 2007-06-21 Simon Goldschmidt
1709 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1710 LWIP_AUTOIP =0 and =1 to remove redundant code.
1712 2007-06-21 Simon Goldschmidt
1713 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1714 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1715 heap. This both prevents memory fragmentation and gives a higher speed
1716 at the cost of more memory consumption. Turned off by default.
1718 2007-06-21 Simon Goldschmidt
1719 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1720 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1721 int to be able to send a bigger buffer than 64K with one time (mainly
1722 used from lwip_send).
1724 2007-06-21 Simon Goldschmidt
1725 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1726 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1728 2007-06-21 Simon Goldschmidt
1729 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1730 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1731 changes on low memory or empty send-buffer.
1733 2007-06-18 Simon Goldschmidt
1734 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1735 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1736 used for ethernet and struct eth_addr already had a defined length of 6).
1738 2007-06-17 Simon Goldschmidt
1739 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1740 to disable UDP checksum generation on transmit.
1742 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1743 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1744 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1745 this macro to check "conn" parameter in api_msg.c functions.
1747 2007-06-11 Simon Goldschmidt
1748 * sockets.c, sockets.h: Added UDP lite support for sockets
1750 2007-06-10 Simon Goldschmidt
1751 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1752 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1755 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1756 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1757 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1758 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1759 (see TODO mark in the source code).
1761 2007-06-09 Simon Goldschmidt
1762 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1763 etharp_output() to match netif->output so etharp_output() can be used
1764 directly as netif->output to save one function call.
1766 2007-06-08 Simon Goldschmidt
1767 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1768 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1769 added initialization of those to ethernetif, slipif and loopif.
1771 2007-05-18 Simon Goldschmidt
1772 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1773 (defaulting to off for now) that can be set to 0 to send fragmented
1774 packets by passing PBUF_REFs down the stack.
1776 2007-05-23 Frédéric Bernon
1777 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1778 connections, such present in patch #5959.
1780 2007-05-23 Frédéric Bernon
1781 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1782 code in only one part...
1784 2007-05-18 Simon Goldschmidt
1785 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1786 elements to overflow. This is achieved by adding some bytes before and after
1787 each pool element (increasing their size, of course), filling them with a
1788 prominent value and checking them on freeing the element.
1789 Set it to 2 to also check every element in every pool each time memp_malloc()
1790 or memp_free() is called (slower but more helpful).
1792 2007-05-10 Simon Goldschmidt
1793 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1794 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1797 2007-05-11 Frédéric Bernon
1798 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1799 Include a function pointer instead of a table index in the message to reduce
1800 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1801 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1803 2007-05-10 Simon Goldschmidt
1804 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1805 \ extern "C" {' in all header files. Now you can write your application using
1806 the lwIP stack in C++ and simply #include the core files. Note I have left
1807 out the netif/ppp/*h header files for now, since I don't know which files are
1808 included by applications and which are for internal use only.
1810 2007-05-09 Simon Goldschmidt
1811 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1812 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1813 situations where some compilers might inline the copy and save a function
1814 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1816 2007-05-08 Simon Goldschmidt
1817 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1818 to be overriden in case the C-library malloc implementation is not protected
1819 against concurrent access.
1821 2007-05-04 Simon Goldschmidt (Atte Kojo)
1822 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1823 multiple packets to the same host.
1825 2007-05-04 Frédéric Bernon, Jonathan Larmour
1826 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1827 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1828 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1829 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1830 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1831 these fields are now renamed "addr" & "port".
1833 2007-04-11 Jonathan Larmour
1834 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1835 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1836 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1837 by the port in sys_arch.h if desired.
1839 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1840 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1841 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1842 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1844 2007-04-05 Frédéric Bernon
1845 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1847 2007-04-04 Simon Goldschmidt
1848 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1849 use this for and architecture-independent form to tell the compiler you intentionally
1850 are not using this variable. Can be overriden in cc.h.
1852 2007-03-28 Frédéric Bernon
1853 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1854 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1855 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1856 It will be used by DHCP to register a client hostname, but can also be use when you call
1859 2007-03-28 Frédéric Bernon
1860 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1861 initialize a network interface's flag with. It tell this interface is an ethernet
1862 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1863 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1865 2007-03-26 Frédéric Bernon, Jonathan Larmour
1866 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1867 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1868 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1869 is done in tcpip_init function.
1871 2007-03-22 Frédéric Bernon
1872 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1873 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1874 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1875 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1876 but never used. Fix msg_in.c with the correct #if test for a stat display.
1878 2007-03-21 Kieran Mansley
1879 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1880 Provides callback on netif up/down state change.
1882 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1883 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1884 ip.c, netif.h, tcpip.c, opt.h:
1885 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1886 filter per all network interfaces. Declare a new function in netif to enable to
1887 control the MAC filter (to reduce lwIP traffic processing).
1889 2007-03-11 Frédéric Bernon
1890 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1891 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1892 unless you know what you're doing (default are RFC1122 compliant). Note
1893 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1895 2007-03-08 Frédéric Bernon
1896 * tcp.h: Keepalive values can be configured at compile time, but don't change
1897 this unless you know what you're doing (default are RFC1122 compliant).
1899 2007-03-08 Frédéric Bernon
1900 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1901 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1902 on UDP sockets/netconn.
1904 2007-03-08 Simon Goldschmidt
1905 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1907 2007-03-06 Frédéric Bernon
1908 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1909 Implement SO_RCVTIMEO on UDP sockets/netconn.
1911 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1912 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1913 on the stack and remove the API msg type from memp
1915 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1916 * sockets.h, sockets.c: Move socket initialization to new
1917 lwip_socket_init() function.
1918 NOTE: this changes the API with ports. Ports will have to be
1919 updated to call lwip_socket_init() now.
1921 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1922 * api_lib.c: Use memcpy in netbuf_copy_partial.
1927 2008-03-17 Frédéric Bernon, Ed Kerekes
1928 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1929 some problems to fill the IP header on some targets, use now the
1930 ip.h macros to do it).
1932 2008-03-13 Frédéric Bernon
1933 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1934 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1935 TCP connection caused a crash. Note that using (lwip_)recvfrom
1936 like this is a bit slow and that using (lwip)getpeername is the
1937 good lwip way to do it (so, using recv is faster on tcp sockets).
1939 2008-03-12 Frédéric Bernon, Jonathan Larmour
1940 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1941 recv_raw() does not consume data", and the ping sample (with
1942 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1943 returned the IP payload, without the IP header).
1945 2008-03-04 Jonathan Larmour
1946 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1947 and/or warnings on some systems where mem_size_t and size_t differ.
1948 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1950 2008-03-04 Kieran Mansley (contributions by others)
1951 * Numerous small compiler error/warning fixes from contributions to
1952 mailing list after 1.3.0 release candidate made.
1954 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1955 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1957 2008-01-15 Kieran Mansley
1958 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1959 prevented from sending by a small send window, not just a zero
1962 2008-01-09 Jonathan Larmour
1963 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1964 conflict with Linux system headers.
1966 2008-01-06 Jonathan Larmour
1967 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1968 address entirely on receiving a DHCPNAK, and restarting discovery.
1970 2007-12-21 Simon Goldschmidt
1971 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1972 is not protected" by using new macros for interlocked access to modify/test
1973 netconn->recv_avail.
1975 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1976 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1978 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1979 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1980 of silly window avoidance and prevent lwIP from shrinking the window)
1982 2007-12-04 Simon Goldschmidt
1983 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1984 data packet was lost): add assert that all segment lists are empty in
1985 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1986 state from LAST_ACK in tcp_process
1988 2007-12-02 Simon Goldschmidt
1989 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1990 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1991 has to be set to 0 in lwipopts.h
1993 2007-12-02 Simon Goldschmidt
1994 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1995 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1996 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1997 This is a fix for thread-safety and allocates all items needed for a netconn
1998 when the netconn is created.
2000 2007-11-30 Simon Goldschmidt
2001 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2002 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2003 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2004 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2006 2007-11-27 Simon Goldschmidt
2007 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2008 letting ip_route only use netifs that are up.
2010 2007-11-27 Simon Goldschmidt
2011 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2012 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2013 sockets block most operations once they have seen a fatal error.
2015 2007-11-27 Simon Goldschmidt
2016 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2017 netif to send as an argument (to be able to send on netifs that are down).
2019 2007-11-26 Simon Goldschmidt
2020 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2023 2007-11-21 Simon Goldschmidt
2024 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2025 Fixed the nagle algorithm; nagle now also works for all raw API applications
2026 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2028 2007-11-12 Frédéric Bernon
2029 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2030 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2031 context in do_getaddr.
2033 2007-11-10 Simon Goldschmidt
2034 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2035 happen any time). Now the packet simply isn't enqueued when out of memory.
2037 2007-11-01 Simon Goldschmidt
2038 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2039 TCP_MSS if that is smaller) as long as no MSS option is received from the
2042 2007-11-01 Simon Goldschmidt
2043 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2044 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2045 sending our configured TCP_MSS instead of the one received).
2047 2007-11-01 Simon Goldschmidt
2048 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2049 calculated based on the configured TCP_MSS, not on the MSS option received
2052 2007-10-09 Simon Goldschmidt
2053 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2054 short and also was generated wrong if checksum coverage != tot_len;
2055 receive: checksum was calculated wrong if checksum coverage != tot_len
2057 2007-10-08 Simon Goldschmidt
2058 * mem.c: lfree was not updated in mem_realloc!
2060 2007-10-07 Frédéric Bernon
2061 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2062 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2063 this change cause an API breakage for netconn_addr, since a parameter
2064 type change. Any compiler should cause an error without any changes in
2065 yours netconn_peer calls (so, it can't be a "silent change"). It also
2066 reduce a little bit the footprint for socket layer (lwip_getpeername &
2067 lwip_getsockname use now a common lwip_getaddrname function since
2068 netconn_peer & netconn_addr have the same parameters).
2070 2007-09-20 Simon Goldschmidt
2071 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2072 by checking tcp_tw_pcbs also
2074 2007-09-19 Simon Goldschmidt
2075 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2077 2007-09-15 Mike Kleshov
2078 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2080 2007-09-06 Frédéric Bernon
2081 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2082 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2083 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2084 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2086 2007-08-30 Frédéric Bernon
2087 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2088 and fix some coding style.
2090 2007-08-28 Frédéric Bernon
2091 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2092 kind of packets. These packets are considered like Ethernet packets (payload
2093 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2094 are considered like IP packets (payload pointing to iphdr).
2096 2007-08-27 Frédéric Bernon
2097 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2098 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2099 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2101 2007-08-24 Kieran Mansley
2102 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2103 compiler (Paradigm C++)
2105 2007-08-09 Frédéric Bernon, Bill Florac
2106 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2107 Introduce IGMP_STATS to centralize statistics management.
2109 2007-08-09 Frédéric Bernon, Bill Florac
2110 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2111 packet on a udp pcb binded on an netif's IP address, and not on "any".
2113 2007-08-09 Frédéric Bernon, Bill Florac
2114 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2115 This is mainly on using lookup/lookfor, and some coding styles...
2117 2007-07-26 Frédéric Bernon (and "thedoctor")
2118 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2120 2007-07-25 Simon Goldschmidt
2121 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2122 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2123 (tcp_output is called again later from tcp timers).
2125 2007-07-25 Simon Goldschmidt
2126 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2127 copy_from_pbuf, which illegally modified the given pbuf.
2129 2007-07-25 Simon Goldschmidt
2130 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2131 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2133 2007-07-24 Simon Goldschmidt
2134 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2135 correct state (must be CLOSED).
2137 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2138 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2139 allocation. It now returns NULL.
2141 2007-07-13 Frédéric Bernon
2142 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2145 2007-07-13 Frédéric Bernon
2146 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2147 because current code doesn't follow rawapi.txt documentation.
2149 2007-07-13 Kieran Mansley
2150 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2151 out of sequence processing of received packets
2153 2007-07-03 Simon Goldschmidt
2154 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2155 assumption is made that this pbuf is in one piece (i.e. not chained). These
2156 assumptions clash with the possibility of converting to fully pool-based
2157 pbuf implementations, where PBUF_RAM pbufs might be chained.
2159 2007-07-03 Simon Goldschmidt
2160 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2161 when closing tcp netconns: removed conn->sem, less context switches when
2162 closing, both netconn_close and netconn_delete should safely close tcp
2165 2007-07-02 Simon Goldschmidt
2166 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2167 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2168 to cache ARP table indices with each pcb instead of single-entry cache for
2171 2007-07-02 Simon Goldschmidt
2172 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2173 warnings when assigning to smaller types.
2175 2007-06-28 Simon Goldschmidt
2176 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2178 2007-06-28 Simon Goldschmidt
2179 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2180 a segment contained chained pbufs)
2182 2007-06-28 Frédéric Bernon
2183 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2184 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2185 possible to define this macro in your own lwipopts.h to always use C library's
2186 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2188 2007-06-28 Frédéric Bernon
2189 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2190 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2191 in api_lib/api_msg (use pointers and not type with table, etc...)
2193 2007-06-26 Simon Goldschmidt
2194 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2196 2007-06-25 Simon Goldschmidt
2197 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2198 for udp packets with no matching pcb.
2200 2007-06-25 Simon Goldschmidt
2201 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2202 could get udp input packets if the remote side matched.
2204 2007-06-13 Simon Goldschmidt
2205 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2206 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2208 2007-06-13 Simon Goldschmidt
2209 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2210 -> netconn_new_..() does not allocate a new connection for unsupported
2213 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2214 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2215 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2217 2007-06-13 Frédéric Bernon, Matthias Weisser
2218 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2219 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2220 some macro names collision with some OS macros.
2222 2007-06-11 Simon Goldschmidt
2223 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2224 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2225 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2228 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2229 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2230 where TCP flags wasn't initialized in tcp_keepalive.
2232 2007-06-03 Simon Goldschmidt
2233 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2234 registered, p->payload was modified without modifying p->len if sending
2235 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2237 2007-06-03 Simon Goldschmidt
2238 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2239 re-used the input pbuf even if that didn't have enough space to include the
2240 link headers. Now the space is tested and a new pbuf is allocated for the
2241 echo response packet if the echo request pbuf isn't big enough.
2243 2007-06-01 Simon Goldschmidt
2244 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2246 2007-05-23 Frédéric Bernon
2247 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2248 allocated by do_listen if success) and netconn_accept errors handling. In
2249 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2250 by ASSERT, except for netconn_delete.
2252 2007-05-23 Frédéric Bernon
2253 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2254 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2255 directly close the recvmbox).
2257 2007-05-22 Simon Goldschmidt
2258 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2259 bound but unconnected (and non-listening) tcp_pcbs.
2261 2007-05-22 Frédéric Bernon
2262 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2263 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2264 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2265 like "sys_timeout" in their application threads.
2267 2007-05-22 Frédéric Bernon
2268 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2269 which parameters are used by which do_xxx function, and to avoid "misusing"
2270 parameters (patch #5938).
2272 2007-05-22 Simon Goldschmidt
2273 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2274 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2275 is only 8 bits wide. This affects the api, as there, the protocol was
2278 2007-05-18 Simon Goldschmidt
2279 * memp.c: addition to patch #5913: smaller pointer was returned but
2280 memp_memory was the same size -> did not save memory.
2282 2007-05-16 Simon Goldschmidt
2283 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2286 2007-05-16 Simon Goldschmidt
2287 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2288 as the one of the netif used for sending to prevent sending from old
2289 addresses after a netif address gets changed (partly fixes bug #3168).
2291 2007-05-16 Frédéric Bernon
2292 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2293 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2294 tcpip_init) because we have to be sure that network interfaces are already
2295 added (mac filter is updated only in igmp_init for the moment).
2297 2007-05-16 Simon Goldschmidt
2298 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2299 into sys_arch_sem_wait calls to prevent timers from running while waiting
2300 for the heap. This fixes bug #19167.
2302 2007-05-13 Simon Goldschmidt
2303 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2304 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2307 2007-05-07 Simon Goldschmidt
2308 * mem.c: Another attempt to fix bug #17922.
2310 2007-05-04 Simon Goldschmidt
2311 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2312 implementation so that it can be reused (don't allocate the target
2313 pbuf inside pbuf_copy()).
2315 2007-05-04 Simon Goldschmidt
2316 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2317 to save a little RAM (next pointer of memp is not used while not in pool).
2320 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2323 2007-04-23 Simon Goldschmidt
2324 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2325 in NULL reference for incoming TCP packets". Loopif has to be configured
2326 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2327 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2328 putting packets on a list that is fed to the stack by calling loopif_poll()
2329 (single-thread / NO_SYS / polling environment where e.g.
2330 netif->input() = ip_input).
2332 2007-04-17 Jonathan Larmour
2333 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2334 the difference between two u16_t's.
2335 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2336 MEMP_NUM_NETCONN in sockets.c right now.
2338 2007-04-12 Jonathan Larmour
2339 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2341 2007-04-12 Kieran Mansley
2342 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2343 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2345 2007-04-11 Simon Goldschmidt
2346 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2347 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2348 pbuf.c: removed functions no needed any more (by etharp).
2350 2007-04-11 Kieran Mansley
2351 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2352 "Constant is long" warnings with 16bit compilers. Contributed by
2353 avatar@mmlab.cse.yzu.edu.tw
2355 2007-04-05 Frédéric Bernon, Jonathan Larmour
2356 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2357 the mailbox is active". Now, the post is only done during a connect, and do_send,
2358 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2360 2007-04-03 Frédéric Bernon
2361 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2362 packets. See patch #5834.
2364 2007-03-30 Frédéric Bernon
2365 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2366 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2368 2007-03-30 Frédéric Bernon
2369 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2370 others environment defines (these were too "generic").
2372 2007-03-28 Frédéric Bernon
2373 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2374 result and can cause a crash. lwip_send now check netbuf_ref result.
2376 2007-03-28 Simon Goldschmidt
2377 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2378 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2379 defined. This is the way it should have been already (looking at
2382 2007-03-28 Kieran Mansley
2383 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2384 IP and TCP headers *and* physical link headers
2386 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2387 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2388 to send some garbage. It is not a definitive solution, but the patch does solve
2389 the problem for most cases.
2391 2007-03-22 Frédéric Bernon
2392 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2394 2007-03-22 Frédéric Bernon
2395 * api_lib.c: somes resources couldn't be freed if there was errors during
2396 netconn_new_with_proto_and_callback.
2398 2007-03-22 Frédéric Bernon
2399 * ethernetif.c: update netif->input calls to check return value. In older ports,
2400 it's a good idea to upgrade them, even if before, there could be another problem
2401 (access to an uninitialized mailbox).
2403 2007-03-21 Simon Goldschmidt
2404 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2405 by casting to unsigned).
2407 2007-03-21 Frédéric Bernon
2408 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2409 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2410 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2411 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2412 faster and more reliable communication between api_lib and tcpip.
2414 2007-03-21 Frédéric Bernon
2415 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2417 2007-03-21 Frédéric Bernon
2418 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2420 2007-03-21 Kieran Mansley
2421 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2424 2007-03-21 Kieran Mansley
2425 * Fix all uses of pbuf_header to check the return value. In some
2426 cases just assert if it fails as I'm not sure how to fix them, but
2427 this is no worse than before when they would carry on regardless
2430 2007-03-21 Kieran Mansley
2431 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2432 comment out missing header include in icmp.c
2434 2007-03-20 Frédéric Bernon
2435 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2436 synchronized with memp.h.
2438 2007-03-20 Frédéric Bernon
2439 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2440 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2441 network interfaces. Also fix a compiler warning.
2443 2007-03-20 Kieran Mansley
2444 * udp.c: Only try and use pbuf_header() to make space for headers if
2445 not a ROM or REF pbuf.
2447 2007-03-19 Frédéric Bernon
2448 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2451 2007-03-19 Frédéric Bernon
2452 * Remove unimplemented "memp_realloc" function from memp.h.
2454 2007-03-11 Simon Goldschmidt
2455 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2458 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2459 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2460 (missing `const' qualifier in socket functions), to get more compatible to
2461 standard POSIX sockets.
2463 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2464 * sockets.c: Add asserts inside bind, connect and sendto to check input
2465 parameters. Remove excessive set_errno() calls after get_socket(), because
2466 errno is set inside of get_socket(). Move last sock_set_errno() inside
2469 2007-03-09 Simon Goldschmidt
2470 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2471 was allocated too small.
2473 2007-03-06 Simon Goldschmidt
2474 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2475 the stack from concurrent access.
2477 2007-03-06 Frédéric Bernon, Dmitry Potapov
2478 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2479 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2481 2007-03-06 Simon Goldschmidt
2482 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2483 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2485 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2486 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2487 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2488 Allow to do ARP processing for incoming packets inside tcpip_thread
2489 (protecting ARP layer against concurrent access). You can also disable
2490 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2491 Older ports have to use tcpip_ethinput.
2493 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2494 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2495 from pointer target type"
2497 2007-03-05 Frédéric Bernon
2498 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2499 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2501 2007-03-04 Frédéric Bernon
2502 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2505 2007-03-04 Frédéric Bernon
2506 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2508 The api_msg struct stay on the stack (not moved to netconn struct).
2510 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2511 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2512 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2513 Also fixed cast warning in pbuf_alloc()
2515 2007-03-04 Simon Goldschmidt
2516 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2517 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2519 2007-03-03 Frédéric Bernon
2520 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2521 It is static, and never used in udp.c except udp_init().
2523 2007-03-02 Simon Goldschmidt
2524 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2525 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2526 initialized before tcpip_thread is running (e.g. before OS is started)
2528 2007-03-02 Frédéric Bernon
2529 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2532 2007-02-28 Kieran Mansley
2533 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2534 outside the region of the pbuf by pbuf_header()
2536 2007-02-28 Kieran Mansley
2537 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2538 when supplied timeout is also non-zero
2542 2006-12-05 Leon Woestenberg
2543 * CHANGELOG: Mention STABLE-1.2.0 release.
2547 2006-12-01 Christiaan Simons
2548 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2549 Note this is a workaround. Currently I have no other options left.
2551 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2552 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2553 to include/lwip/opt.h.
2554 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2555 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2556 * opt.h: Add above new options.
2558 2006-08-18 Christiaan Simons
2559 * tcp_{in,out}.c: added SNMP counters.
2560 * ipv4/ip.c: added SNMP counters.
2561 * ipv4/ip_frag.c: added SNMP counters.
2563 2006-08-08 Christiaan Simons
2564 * etharp.{c,h}: added etharp_find_addr() to read
2565 (stable) ethernet/IP address pair from ARP table
2567 2006-07-14 Christiaan Simons
2568 * mib_structs.c: added
2569 * include/lwip/snmp_structs.h: added
2570 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2572 2006-07-06 Christiaan Simons
2573 * snmp/asn1_{enc,dec}.c added
2575 * snmp/msg_{in,out}.c added
2576 * include/lwip/snmp_asn1.h added
2577 * include/lwip/snmp_msg.h added
2578 * doc/snmp_agent.txt added
2580 2006-03-29 Christiaan Simons
2581 * inet.c, inet.h: Added platform byteswap support.
2582 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2583 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2587 2006-11-30 Christiaan Simons
2588 * dhcp.c: Fixed false triggers of request_timeout.
2590 2006-11-28 Christiaan Simons
2591 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2593 2006-10-11 Christiaan Simons
2594 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2595 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2596 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2597 identifier from 170 to 136 (bug #17574).
2599 2006-10-10 Christiaan Simons
2600 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2602 2006-08-17 Christiaan Simons
2603 * udp.c: Fixed bug #17200, added check for broadcast
2604 destinations for PCBs bound to a unicast address.
2606 2006-08-07 Christiaan Simons
2607 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2609 2006-06-27 Christiaan Simons
2610 * api_msg.c: Applied patch for cold case (bug #11135).
2611 In accept_function() ensure newconn->callback is always initialized.
2613 2006-06-15 Christiaan Simons
2614 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2615 facilitate printing of mem_size_t and u16_t statistics.
2617 2006-06-14 Christiaan Simons
2618 * api_msg.c: Applied patch #5146 to handle allocation failures
2619 in accept() by Kevin Lawson.
2621 2006-05-26 Christiaan Simons
2622 * api_lib.c: Removed conn->sem creation and destruction
2623 from netconn_write() and added sys_sem_new to netconn_new_*.
2627 2006-03-03 Christiaan Simons
2628 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2629 access and added pbuf_alloc() return value checks.
2631 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2632 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2633 now handled by the checksum routine properly.
2635 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2636 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2637 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2639 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2640 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2641 submitted by Mitrani Hiroshi.
2643 2005-12-15 Christiaan Simons
2644 * inet.c: Disabled the added summing routine to preserve code space.
2646 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2647 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2648 Added Curt McDowell's optimized checksumming routine for future
2649 inclusion. Need to create test case for unaliged, aligned, odd,
2650 even length combination of cases on various endianess machines.
2652 2005-12-09 Christiaan Simons
2653 * inet.c: Rewrote standard checksum routine in proper portable C.
2655 2005-11-25 Christiaan Simons
2656 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2657 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2658 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2660 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2661 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2662 routine by Peter Jolasson.
2663 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2665 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2666 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2667 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2669 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2670 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2672 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2673 * udp.c: UDP pcb->recv() was called even when it was NULL.
2677 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2678 * etharp.*: Disabled multiple packets on the ARP queue.
2679 This clashes with TCP queueing.
2681 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2682 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2683 Halved the ARP period, doubled the period counts.
2684 ETHARP_MAX_PENDING now should be at least 2. This prevents
2685 the counter from reaching 0 right away (which would allow
2686 too little time for ARP responses to be received).
2688 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2689 * dhcp.c: Decline messages were not multicast but unicast.
2690 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2691 Do not try hard to insert arbitrary packet's source address,
2692 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2693 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2694 querying an address will see it appear in the cache (DHCP could
2695 suffer from this when a server invalidly gave an in-use address.)
2696 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2697 comparing network addresses (identifiers), not the network masks
2699 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2700 IP address actually belongs to the network of the given interface.
2702 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2703 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2707 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2708 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2709 even if one is already pending, if the rcv_wnd is above a threshold
2710 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2711 delayed ACK in order to open the window if the stack is only receiving data.
2713 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2714 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2716 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2717 * etharp.c: Make sure the first pbuf queued on an ARP entry
2718 is properly ref counted.
2720 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2721 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2722 warnings about comparison.
2723 * pbuf.c: Stopped compiler complaining of empty if statement
2724 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2725 * tcp.c: Stopped compiler complaining of empty if statement
2726 when LWIP_DEBUGF() empty.
2727 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2728 * inet.c: Added a couple of casts to quiet the compiler.
2729 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2731 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2732 * inet.c: Made data types consistent in inet_ntoa().
2733 Added casts for return values of checksum routines, to pacify compiler.
2734 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2735 Small corrections to some debugging statements, to pacify compiler.
2737 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2738 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2739 * ethernetif.c Updated low_level_output() to match prototype for
2740 netif->linkoutput and changed low_level_input() similarly for consistency.
2741 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2742 of raw_recv() in raw.h and so avoid compiler error.
2743 * sockets.c: Added trivial (int) cast to keep compiler happier.
2744 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2750 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2751 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2752 your cc.h file defines this either 1 or 0. If non-defined,
2754 * .c: Added <string.h> and <errno.h> includes where used.
2755 * etharp.c: Made some array indices unsigned.
2757 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2758 * netif.*: Added netif_set_up()/down().
2759 * dhcp.c: Changes to restart program flow.
2761 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2762 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2763 single-pass lookup for different candidates. Should exploit locality.
2765 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2766 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2767 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2768 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2769 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2773 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2774 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2775 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2776 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2777 is to prefix the 14-bit Ethernet headers with two padding bytes.
2779 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2780 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2781 * etharp.c: Fixed the case where the packet that initiates the ARP request
2782 is not queued, and gets lost. Fixed the case where the packets destination
2783 address is already known; we now always queue the packet and perform an ARP
2790 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2791 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2792 * Fixed two possible NULL references in rare cases.
2798 * Fixed DHCP which did not include the IP address in DECLINE messages.
2802 * etharp.c has been hauled over a bit.
2808 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2809 * Packets sent from ARP queue had invalid source hardware address.
2813 * Pass-by ARP requests do now update the cache.
2817 * No longer dependent on ctype.h.
2818 * New socket options.
2819 * Raw IP pcb support.
2825 * Some debug formatters and casts fixed.
2826 * Numereous fixes in PPP.
2830 * DEBUGF now is LWIP_DEBUGF
2831 * pbuf_dechain() has been re-enabled.
2832 * Mentioned the changed use of CVS branches in README.
2838 * Fixed pool pbuf memory leak in pbuf_alloc().
2839 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2840 Reported by Savin Zlobec.
2842 * PBUF_POOL chains had their tot_len field not set for non-first
2843 pbufs. Fixed in pbuf_alloc().
2847 * Added PPP stack contributed by Marc Boucher
2851 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2853 * ARP queueuing now queues the latest packet instead of the first.
2854 This is the RFC recommended behaviour, but can be overridden in
2861 * TCP has been fixed to deal with the new use of the pbuf->ref
2864 * DHCP dhcp_inform() crash bug fixed.
2868 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2869 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2870 Implemented by David Haas.
2876 * The packet buffer implementation has been enhanced to support
2877 zero-copy and copy-on-demand for packet buffers which have their
2878 payloads in application-managed memory.
2879 Implemented by David Haas.
2881 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2882 if an outgoing packet can be directly sent on the link, or perform
2883 a copy-on-demand when necessary.
2885 The application can safely assume the packet is sent, and the RAM
2886 is available to the application directly after calling udp_send()
2887 or similar function.
2891 * ARP_QUEUEING should now correctly work for all cases, including
2893 Implemented by Leon Woestenberg.
2897 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2898 to a '0.0.0.0' IP address.
2900 * The packet buffer implementation is changed. The pbuf->ref counter
2901 meaning has changed, and several pbuf functions have been
2902 adapted accordingly.
2904 * netif drivers have to be changed to set the hardware address length field
2905 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2906 See the contrib/ports/c16x cs8900 driver as a driver example.
2908 * netif's have a dhcp field that must be initialized to NULL by the driver.
2909 See the contrib/ports/c16x cs8900 driver as a driver example.
2911 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2912 logged in CVS but have not been explained here.
2914 (0.5.3) Changes since version 0.5.2
2918 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2919 threads because it wasn't protected by semaphores.
2923 * struct ip_addr now packed.
2925 * The name of the time variable in arp.c has been changed to ctime
2926 to avoid conflicts with the time() function.
2928 (0.5.2) Changes since version 0.5.1
2932 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2936 * A bug in tcp_parseopt() could cause the stack to hang because of a
2937 malformed TCP option.
2939 * The address of new connections in the accept() function in the BSD
2940 socket library was not handled correctly.
2942 * pbuf_dechain() did not update the ->tot_len field of the tail.
2944 * Aborted TCP connections were not handled correctly in all
2949 * All protocol header structs are now packed.
2951 * The ->len field in the tcp_seg structure now counts the actual
2952 amount of data, and does not add one for SYN and FIN segments.
2954 (0.5.1) Changes since version 0.5.0
2958 * Possible to run as a user process under Linux.
2960 * Preliminary support for cross platform packed structs.
2962 * ARP timer now implemented.
2966 * TCP output queue length was badly initialized when opening
2969 * TCP delayed ACKs were not sent correctly.
2971 * Explicit initialization of BSS segment variables.
2973 * read() in BSD socket library could drop data.
2975 * Problems with memory alignment.
2977 * Situations when all TCP buffers were used could lead to
2980 * TCP MSS option wasn't parsed correctly.
2982 * Problems with UDP checksum calculation.
2984 * IP multicast address tests had endianess problems.
2986 * ARP requests had wrong destination hardware address.
2990 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2992 * A ->linkoutput() member was added to struct netif.
2994 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2996 * ntoh* macros are now null definitions for big endian CPUs.
2998 (0.5.0) Changes since version 0.4.2
3002 * Redesigned operating system emulation layer to make porting easier.
3004 * Better control over TCP output buffers.
3006 * Documenation added.
3010 * Locking issues in buffer management.
3012 * Bugfixes in the sequential API.
3014 * IP forwarding could cause memory leakage. This has been fixed.
3018 * Directory structure somewhat changed; the core/ tree has been
3021 (0.4.2) Changes since version 0.4.1
3025 * Experimental ARP implementation added.
3027 * Skeleton Ethernet driver added.
3029 * Experimental BSD socket API library added.
3033 * In very intense situations, memory leakage could occur. This has
3038 * Variables named "data" and "code" have been renamed in order to
3039 avoid name conflicts in certain compilers.
3041 * Variable++ have in appliciable cases been translated to ++variable
3042 since some compilers generate better code in the latter case.
3044 (0.4.1) Changes since version 0.4
3048 * TCP: Connection attempts time out earlier than data
3049 transmissions. Nagle algorithm implemented. Push flag set on the
3050 last segment in a burst.
3052 * UDP: experimental support for UDP-Lite extensions.
3056 * TCP: out of order segments were in some cases handled incorrectly,
3057 and this has now been fixed. Delayed acknowledgements was broken
3058 in 0.4, has now been fixed. Binding to an address that is in use
3059 now results in an error. Reset connections sometimes hung an
3060 application; this has been fixed.
3062 * Checksum calculation sometimes failed for chained pbufs with odd
3063 lengths. This has been fixed.
3065 * API: a lot of bug fixes in the API. The UDP API has been improved
3066 and tested. Error reporting and handling has been
3067 improved. Logical flaws and race conditions for incoming TCP
3068 connections has been found and removed.
3070 * Memory manager: alignment issues. Reallocating memory sometimes
3071 failed, this has been fixed.
3073 * Generic library: bcopy was flawed and has been fixed.
3077 * API: all datatypes has been changed from generic ones such as
3078 ints, to specified ones such as u16_t. Functions that return
3079 errors now have the correct type (err_t).
3081 * General: A lot of code cleaned up and debugging code removed. Many
3082 portability issues have been fixed.
3084 * The license was changed; the advertising clause was removed.
3088 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3089 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3092 (0.4) Changes since version 0.3.1
3094 * Memory management has been radically changed; instead of
3095 allocating memory from a shared heap, memory for objects that are
3096 rapidly allocated and deallocated is now kept in pools. Allocation
3097 and deallocation from those memory pools is very fast. The shared
3098 heap is still present but is used less frequently.
3100 * The memory, memory pool, and packet buffer subsystems now support
3101 4-, 2-, or 1-byte alignment.
3103 * "Out of memory" situations are handled in a more robust way.
3105 * Stack usage has been reduced.
3107 * Easier configuration of lwIP parameters such as memory usage,
3108 TTLs, statistics gathering, etc. All configuration parameters are
3109 now kept in a single header file "lwipopts.h".
3111 * The directory structure has been changed slightly so that all
3112 architecture specific files are kept under the src/arch
3115 * Error propagation has been improved, both in the protocol modules
3118 * The code for the RTXC architecture has been implemented, tested
3121 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3122 the Internet checksum modules.
3124 * Bugs related to porting between a 32-bit and a 16-bit architecture
3125 have been found and corrected.
3127 * The license has been changed slightly to conform more with the
3128 original BSD license, including the advertisement clause.
3130 (0.3.1) Changes since version 0.3
3132 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3133 RAM never returned the RAM when the pbuf was deallocated.
3135 * TCP congestion control, window updates and retransmissions did not
3136 work correctly. This has now been fixed.
3138 * Bugfixes in the API.
3140 (0.3) Changes since version 0.2
3142 * New and improved directory structure. All include files are now
3143 kept in a dedicated include/ directory.
3145 * The API now has proper error handling. A new function,
3146 netconn_err(), now returns an error code for the connection in
3149 * Improvements in the memory management subsystem. The system now
3150 keeps a pointer to the lowest free memory block. A new function,
3151 mem_malloc2() tries to allocate memory once, and if it fails tries
3152 to free some memory and retry the allocation.
3154 * Much testing has been done with limited memory
3155 configurations. lwIP now does a better job when overloaded.
3157 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3159 * Many bugfixes in the TCP code:
3161 - Fixed a bug in tcp_close().
3163 - The TCP receive window was incorrectly closed when out of
3164 sequence segments was received. This has been fixed.
3166 - Connections are now timed-out of the FIN-WAIT-2 state.
3168 - The initial congestion window could in some cases be too
3169 large. This has been fixed.
3171 - The retransmission queue could in some cases be screwed up. This
3174 - TCP RST flag now handled correctly.
3176 - Out of sequence data was in some cases never delivered to the
3177 application. This has been fixed.
3179 - Retransmitted segments now contain the correct acknowledgment
3180 number and advertised window.
3182 - TCP retransmission timeout backoffs are not correctly computed
3183 (ala BSD). After a number of retransmissions, TCP now gives up
3186 * TCP connections now are kept on three lists, one for active
3187 connections, one for listening connections, and one for
3188 connections that are in TIME-WAIT. This greatly speeds up the fast
3189 timeout processing for sending delayed ACKs.
3191 * TCP now provides proper feedback to the application when a
3192 connection has been successfully set up.
3194 * More comments have been added to the code. The code has also been
3195 somewhat cleaned up.
3197 (0.2) Initial public release.