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 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
71 2011-09-27: Simon Goldschmidt
72 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
74 2011-09-24: Simon Goldschmidt
75 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
77 2011-09-23: Simon Goldschmidt
78 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
79 the last packet including FIN can lose data
81 2011-09-22: Simon Goldschmidt
82 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
85 2011-09-21: Simon Goldschmidt
86 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
89 2011-09-20: Simon Goldschmidt
90 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
92 2011-09-11: Simon Goldschmidt
93 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
96 2011-09-09: Simon Goldschmidt
97 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
100 2011-09-03: Simon Goldschmidt
101 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
102 is aggregated and sent to application
104 2011-09-01: Simon Goldschmidt
105 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
108 2011-09-01: Simon Goldschmidt
109 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
111 2011-08-24: Simon Goldschmidt
112 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
114 2011-08-24: Simon Goldschmidt
115 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
116 accept() on UDP connections
118 2011-08-24: Simon Goldschmidt
119 * sockets.h: fixed bug #34057 socklen_t should be a typedef
121 2011-08-24: Simon Goldschmidt
122 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
124 2011-08-24: Simon Goldschmidt
125 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
127 2011-08-24: Simon Goldschmidt
128 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
130 2011-08-22: Simon Goldschmidt
131 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
132 merely prevents nagle from not transmitting fast after closing.)
134 2011-07-22: Simon Goldschmidt
135 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
136 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
137 lwip_send() sends as much as possible for non-blocking sockets
139 2011-07-22: Simon Goldschmidt
140 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
141 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
142 at regular intervals from main level.
144 2011-07-21: Simon Goldschmidt
145 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
146 sending an ARP request when an ARP entry is used in the last minute before
149 2011-07-04: Simon Goldschmidt
150 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
152 2011-06-26: Simon Goldschmidt
153 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
154 updating its documentation only.
156 2011-06-26: Simon Goldschmidt
157 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
160 2011-06-26: Simon Goldschmidt
161 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
169 2011-03-27: Simon Goldschmidt
170 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
171 calculate it in tcp_zero_window_probe (the only place where it was used).
173 2010-11-21: Simon Goldschmidt
174 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
177 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
178 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
179 IP_MULTICAST_LOOP at socket- and raw-API level.
181 2010-06-16: Simon Goldschmidt
182 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
183 link-layer-addressed UDP traffic to be received while a netif is down (just
184 like DHCP during configuration)
186 2010-05-22: Simon Goldschmidt
187 * many many files: bug #27352: removed packing from ip_addr_t, the packed
188 version is now only used in protocol headers. Added global storage for
189 current src/dest IP address while in input functions.
191 2010-05-16: Simon Goldschmidt
192 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
193 calculation (and use them throughout the stack where applicable)
195 2010-05-16: Simon Goldschmidt
196 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
197 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
199 2010-05-16: Simon Goldschmidt
200 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
201 MEMP pool instead of the heap
203 2010-05-13: Simon Goldschmidt
204 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
205 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
206 packets to more than one pcb.
208 2010-05-02: Simon Goldschmidt
209 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
210 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
212 2010-04-30: Simon Goldschmidt
213 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
214 take a precalculated checksum, added pbuf_fill_chksum() to copy data
215 into a pbuf and at the same time calculating the checksum for that data
217 2010-04-29: Simon Goldschmidt
218 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
219 2-byte-aligned IP addresses and MAC addresses
221 2010-04-28: Patch by Bill Auerbach
222 * ip.c: Inline generating IP checksum to save a function call
224 2010-04-14: Simon Goldschmidt
225 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
226 tcpip_thread processes messages or timeouts to implement a watchdog.
228 2010-03-28: Simon Goldschmidt
229 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
230 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
232 2010-03-27: Simon Goldschmidt
233 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
234 etharp_query to prevent unnecessary function calls (inspired by
237 2010-03-20: Simon Goldschmidt
238 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
239 since the linker cannot do this automatically to save space.
241 2010-03-20: Simon Goldschmidt
242 * opt.h, etharp.c/.h: Added support for static ARP table entries
244 2010-03-14: Simon Goldschmidt
245 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
246 when creating TCP segments, not when (re-)transmitting them.
248 2010-03-07: Simon Goldschmidt
249 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
250 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
251 This should speed up receiving data on sockets as the select code in
252 event_callback is only executed when select is waiting.
254 2010-03-06: Simon Goldschmidt
255 * tcp_out.c: task #7013 (Create option to have all packets delivered to
256 netif->output in one piece): Always copy to try to create single pbufs
259 2010-03-06: Simon Goldschmidt
260 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
261 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
262 for tcp netconns to receive pbufs, not netbufs; use that function
265 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
266 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
267 Work on tcp_enqueue: Don't waste memory when chaining segments,
268 added option TCP_OVERSIZE to prevent creating many small pbufs when
269 calling tcp_write with many small blocks of data. Instead, pbufs are
270 allocated larger than needed and the space is used for later calls to
273 2010-02-21: Simon Goldschmidt
274 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
277 2010-02-21: Simon Goldschmidt
278 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
279 implementation of tcp to make API usage cleare to application programmers
281 2010-02-14: Simon Goldschmidt/Stephane Lesage
282 * ip_addr.h: Improved some defines working on ip addresses, added faster
283 macro to copy addresses that cannot be NULL
285 2010-02-13: Simon Goldschmidt
286 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
287 blocking send operation)
289 2010-02-12: Simon Goldschmidt
290 * sockets.c/.h: Added a minimal version of posix fctl() to have a
291 standardised way to set O_NONBLOCK for nonblocking sockets.
293 2010-02-12: Simon Goldschmidt
294 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
295 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
296 and dhcp work with user-allocated structs instead of callin mem_malloc
298 2010-02-12: Simon Goldschmidt/Jeff Barber
299 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
300 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
302 2010-02-12: Simon Goldschmidt
303 * sys layer: task #10139 (Prefer statically allocated memory): converted
304 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
305 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
306 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
307 to let sys.h use binary semaphores instead of mutexes - as before)
309 2010-02-09: Simon Goldschmidt (Simon Kallweit)
310 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
311 (Restart system timeout handling)
313 2010-02-09: Simon Goldschmidt
314 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
315 netif.c) - loopif does not have to be created by the port any more,
316 just define LWIP_HAVE_LOOPIF to 1.
318 2010-02-08: Simon Goldschmidt
319 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
320 inet_ntoa_r/ipaddr_ntoa_r
322 2010-02-08: Simon Goldschmidt
323 * netif.h: Added netif_s/get_igmp_mac_filter() macros
325 2010-02-05: Simon Goldschmidt
326 * netif.h: Added function-like macros to get/set the hostname on a netif
328 2010-02-04: Simon Goldschmidt
329 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
330 make changing the actual implementation behind the typedef easier.
332 2010-02-01: Simon Goldschmidt
333 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
334 for allocating memory when getaddrinfo() is called.
336 2010-01-31: Simon Goldschmidt
337 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
338 them once instead of parsing for every option. This also removes
339 the need for mem_malloc from dhcp_recv and makes it possible to
340 correctly retrieve the BOOTP file.
342 2010-01-30: simon Goldschmidt
343 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
346 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
347 * api.h, api_msg.c, sockets.c: Added except set support in select
350 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
351 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
352 Add non-blocking support for connect (partly from patch #6860),
353 plus many cleanups in socket & netconn API.
355 2010-01-27: Simon Goldschmidt
356 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
357 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
359 2010-01-26: Simon Goldschmidt
360 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
362 2010-01-14: Simon Goldschmidt
363 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
364 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
366 2010-01-13: Simon Goldschmidt
367 * mem.c: The heap now may be moved to user-defined memory by defining
368 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
369 (patch #6966 and bug #26133)
371 2010-01-10: Simon Goldschmidt (Bill Auerbach)
372 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
375 2010-01-10: Simon Goldschmidt
376 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
377 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
379 2009-12-31: Simon Goldschmidt
380 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
381 added timers.c/.h: Separated timer implementation from semaphore/mbox
382 implementation, moved timer implementation to timers.c/.h, timers are
383 now only called from tcpip_thread or by explicitly checking them.
386 2009-12-27: Simon Goldschmidt
387 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
388 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
393 2011-04-20: Simon Goldschmidt
394 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
396 2011-04-13: Simon Goldschmidt
397 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
398 using ports in the IANA private/dynamic range (49152 through 65535).
400 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
401 * etharp.h/.c: Fixed broken VLAN support.
403 2011-03-27: Simon Goldschmidt
404 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
405 pcbs) by checking if the pcb was bound (local_port != 0).
407 2011-03-27: Simon Goldschmidt
408 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
410 2011-03-27: Simon Goldschmidt
411 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
412 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
414 2011-03-27: Simon Goldschmidt
415 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
416 is present never times out) by starting retransmission timer before checking
419 2011-03-22: Simon Goldschmidt
420 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
421 calling sio_read_abort() if the file descriptor is valid.
423 2011-03-14: Simon Goldschmidt
424 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
425 more than once can render a socket useless) since it mainly involves changing
426 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
428 2011-03-13: Simon Goldschmidt
429 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
430 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
431 use EALRADY instead of -1
433 2011-03-13: Simon Goldschmidt
434 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
435 connection has been aborted by err_tcp (since this is not a normal closing
438 2011-03-13: Simon Goldschmidt
439 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
440 with pcb->state != CLOSED
442 2011-02-17: Simon Goldschmidt
443 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
446 2011-02-17: Simon Goldschmidt
447 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
449 2011-01-24: Simon Goldschmidt
450 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
452 2010-12-02: Simon Goldschmidt
453 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
455 2010-11-23: Simon Goldschmidt
456 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
457 LWIP_SO_RCVBUF and ioctl/FIONREAD.
459 2010-11-23: Simon Goldschmidt
460 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
461 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
463 2010-11-23: Simon Goldschmidt
464 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
465 refusing 'refused_data' again.
467 2010-11-22: Simon Goldschmidt
468 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
469 after a successful nonblocking connection.
471 2010-11-22: Simon Goldschmidt
472 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
473 must be sent link-local
475 2010-11-22: Simon Goldschmidt
476 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
479 2010-11-20: Simon Goldschmidt
480 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
482 2010-11-20: Simon Goldschmidt
483 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
484 resemble other stacks.
486 2010-11-20: Simon Goldschmidt
487 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
488 no-copy TCP writes will never succeed.
490 2010-11-20: Simon Goldschmidt
491 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
492 not match documentation: return ERR_ARG instead of ERR_VAL if not
493 initialized or wrong argument.
495 2010-10-20: Simon Goldschmidt
496 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
498 2010-10-05: Simon Goldschmidt
499 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
500 replugging the network cable after an AutoIP address was assigned.
502 2010-08-10: Simon Goldschmidt
503 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
505 2010-08-03: Simon Goldschmidt
506 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
508 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
509 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
510 endian architectures)
512 2010-07-28: Simon Goldschmidt
513 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
516 2010-07-27: Simon Goldschmidt
517 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
518 harm but never did anything
520 2010-07-21: Simon Goldschmidt
521 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
524 2010-07-16: Kieran Mansley
525 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
527 2010-07-10: Simon Goldschmidt
528 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
530 2010-06-30: Simon Goldschmidt
531 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
534 2010-06-28: Kieran Mansley
535 * timers.c remove unportable printing of C function pointers
537 2010-06-24: Simon Goldschmidt
538 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
539 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
541 2010-06-24: Simon Goldschmidt
542 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
543 implemented shutdown at socket level.
545 2010-06-21: Simon Goldschmidt
546 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
547 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
548 custom pbufs that reference other (original) pbufs. Additionally set
549 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
551 2010-06-15: Simon Goldschmidt
552 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
554 2010-06-14: Simon Goldschmidt
555 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
557 2010-06-12: Simon Goldschmidt
558 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
561 2010-05-17: Simon Goldschmidt
562 * netdb.c: Correctly NULL-terminate h_addr_list
564 2010-05-16: Simon Goldschmidt
565 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
566 "symbol already defined" i.e. when linking to winsock
568 2010-05-05: Simon Goldschmidt
569 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
572 2010-04-21: Simon Goldschmidt
573 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
576 2010-03-28: Luca Ceresoli
577 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
579 2010-03-27: Luca Ceresoli
580 * mib2.c: patch #7130: remove meaningless const qualifiers
582 2010-03-26: Simon Goldschmidt
583 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
585 2010-03-26: Simon Goldschmidt
586 * various files: Fixed compiling with different options disabled (TCP/UDP),
587 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
589 2010-03-25: Simon Goldschmidt
590 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
592 2010-03-25: Simon Goldschmidt
593 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
594 overrunning our rcv_wnd in ooseq case.
596 2010-03-22: Simon Goldschmidt
597 * tcp.c: tcp_listen() did not copy the pcb's prio.
599 2010-03-19: Simon Goldschmidt
600 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
602 2010-03-14: Simon Goldschmidt
603 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
604 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
605 and basing PBUF_LINK_HLEN on it.
607 2010-03-08: Simon Goldschmidt
608 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
609 when assiging routable address): when checking incoming packets and
610 aborting existing connection on address change, filter out link-local
613 2010-03-06: Simon Goldschmidt
614 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
616 2010-03-06: Simon Goldschmidt
617 * ipv4/ip.c: Don't try to forward link-local addresses
619 2010-03-06: Simon Goldschmidt
620 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
623 2010-03-05: Simon Goldschmidt
624 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
627 2010-03-05: Simon Goldschmidt
628 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
629 into multiple calls to tcp_write.
631 2010-02-21: Simon Goldschmidt
632 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
633 the implementation of DNS_USES_STATIC_BUF==1)
635 2010-02-20: Simon Goldschmidt
636 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
637 close() vs. shutdown(). Now the application does not get any more
638 recv callbacks after calling tcp_close(). Added tcp_shutdown().
640 2010-02-19: Simon Goldschmidt
641 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
642 confusion with realloc()
644 2010-02-15: Simon Goldschmidt/Stephane Lesage
645 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
648 2010-02-14: Simon Goldschmidt
649 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
650 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
651 admin-status of a netif are up
653 2010-02-14: Simon Goldschmidt
654 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
655 reception and is not really necessary
657 2010-02-14: Simon Goldschmidt
658 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
659 request was directed as us (RFC 826, Packet Reception), otherwise
660 only update existing entries; internalized some functions
662 2010-02-14: Simon Goldschmidt
663 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
664 disabled on netif used for PPPoE) by adding a new netif flag
665 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
666 device but prevents usage of ARP (so that ethernet_input can be used
669 2010-02-12: Simon Goldschmidt
670 * netif.c: netif_set_link_up/down: only do something if the link state
673 2010-02-12: Simon Goldschmidt/Stephane Lesage
674 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
677 2010-02-12: Simon Goldschmidt
678 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
680 2010-02-09: Simon Goldschmidt
681 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
682 (recv() makes receive window update for data that wasn't received by
685 2010-02-09: Simon Goldschmidt/Stephane Lesage
686 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
687 or any netconn_recv() error)
689 2010-02-09: Simon Goldschmidt
690 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
692 2010-02-09: Simon Goldschmidt
693 * netif.c: For loopback packets, adjust the stats- and snmp-counters
694 for the loopback netif.
696 2010-02-08: Simon Goldschmidt
697 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
698 since they are not used anywhere else.
700 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
701 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
702 (patch from bug #28798)
704 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
705 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
706 another bug when LWIP_RAND() returns zero.
708 2010-02-04: Simon Goldschmidt
709 * nearly every file: Use macros defined in ip_addr.h (some of them new)
710 to work with IP addresses (preparation for bug #27352 - Change ip_addr
711 from struct to typedef (u32_t) - and better code).
713 2010-01-31: Simon Goldschmidt
714 * netif.c: Don't call the link-callback from netif_set_up/down() since
715 this invalidly retriggers DHCP.
717 2010-01-29: Simon Goldschmidt
718 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
719 portability file inet.h and its contents from the stack: moved htonX-
720 functions to def.h (and the new def.c - they are not ipv4 dependent),
721 let inet.h depend on ip_addr.h and not the other way round.
722 This fixes bug #28732.
724 2010-01-28: Kieran Mansley
725 * tcp.c: Ensure ssthresh >= 2*MSS
727 2010-01-27: Simon Goldschmidt
728 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
729 callback can lead to accessing unallocated memory. As a consequence,
730 ERR_ABRT means the application has called tcp_abort()!
732 2010-01-25: Simon Goldschmidt
733 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
734 not implemented in SNMP): write-only or not-accessible are still
735 returned by getnext (though not by get)
737 2010-01-24: Simon Goldschmidt
738 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
739 not use reserved C/C++ keywords
741 2010-01-23: Simon Goldschmidt
742 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
745 2010-01-21: Simon Goldschmidt
746 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
747 if tcp_enqueue fails) both in raw- and netconn-API
749 2010-01-19: Simon Goldschmidt
750 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
752 2010-01-18: Iordan Neshev/Simon Goldschmidt
753 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
754 bugfix backports from 2.4.x.
756 2010-01-18: Simon Goldschmidt
757 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
759 2010-01-17: Simon Goldschmidt
760 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
761 task #10102: "netconn: clean up conn->err threading issues" by adding
762 error return value to struct api_msg_msg
764 2010-01-17: Simon Goldschmidt
765 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
766 to return err_t (bugs #27709 and #28087)
768 2010-01-14: Simon Goldschmidt
769 * ...: Use typedef for function prototypes throughout the stack.
771 2010-01-13: Simon Goldschmidt
772 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
773 window = 0) by correctly draining recvmbox/acceptmbox
775 2010-01-11: Simon Goldschmidt
776 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
777 erroneous callbacks) by copying the code from recent pppd
779 2010-01-10: Simon Goldschmidt
780 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
782 2010-01-10: Simon Goldschmidt
783 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
785 2010-01-08: Simon Goldschmidt
786 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
788 2010-01-08: Simon Goldschmidt
789 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
790 passed to dns_local_addhost() might be volatile
792 2010-01-07: Simon Goldschmidt
793 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
795 2010-01-06: Simon Goldschmidt
796 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
798 2009-12-31: Simon Goldschmidt
799 * many ppp files: Reorganised PPP source code from ucip structure to pppd
800 structure to easily compare our code against the pppd code (around v2.3.1)
802 2009-12-27: Simon Goldschmidt
803 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
811 2009-10-27 Simon Goldschmidt/Stephan Lesage
812 * netifapi.c/.h: Added netifapi_netif_set_addr()
814 2009-10-07 Simon Goldschmidt/Fabian Koch
815 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
816 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
818 2009-08-26 Simon Goldschmidt/Simon Kallweit
819 * slipif.c/.h: bug #26397: SLIP polling support
821 2009-08-25 Simon Goldschmidt
822 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
823 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
825 2009-08-25 Simon Goldschmidt
826 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
828 2009-08-24 Jakob Stoklund Olesen
829 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
830 to netif_set_link_up().
832 2009-08-23 Simon Goldschmidt
833 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
834 to a human-readable string.
838 2009-12-24: Kieran Mansley
839 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
842 2009-12-06: Simon Goldschmidt
843 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
844 be statically allocated (like in ucip)
846 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
847 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
849 2009-12-03: Simon Goldschmidt
850 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
851 could have non-zero length
853 2009-12-02: Simon Goldschmidt
854 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
855 tcp_input_pcb until after calling the pcb's callbacks
857 2009-11-29: Simon Goldschmidt
858 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
859 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
861 2009-11-29: Simon Goldschmidt
862 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
863 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
865 2009-11-26: Simon Goldschmidt
866 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
869 2009-11-26: Simon Goldschmidt
870 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
871 algorithm at PCB level
873 2009-11-22: Simon Goldschmidt
874 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
876 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
877 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
878 reusing time-wait pcb
880 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
881 * sockets.c: Fixed bug #28062: Data received directly after accepting
882 does not wake up select
884 2009-11-11: Simon Goldschmidt
885 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
887 2009-10-30: Simon Goldschmidt
888 * opt.h: Increased default value for TCP_MSS to 536, updated default
889 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
891 2009-10-28: Kieran Mansley
892 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
893 to follow algorithm from TCP/IP Illustrated
895 2009-10-27: Kieran Mansley
896 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
898 2009-10-25: Simon Goldschmidt
899 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
900 pcb->recv is NULL to keep rcv_wnd correct)
902 2009-10-25: Simon Goldschmidt
903 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
905 2009-10-23: Simon Goldschmidt (David Empson)
906 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
908 2009-10-21: Simon Goldschmidt
909 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
910 trailing 1 byte len (SYN/FIN)
912 2009-10-21: Simon Goldschmidt
913 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
915 2009-10-19: Simon Goldschmidt
916 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
917 conditional code to assert where applicable), check pbuf length before
918 testing for valid reply
920 2009-10-19: Simon Goldschmidt
921 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
922 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
924 2009-10-16: Simon Goldschmidt
925 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
926 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
929 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
930 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
932 2009-10-15: Simon Goldschmidt
933 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
936 2009-10-15: Simon Goldschmidt
937 * autoip.c: Fixed bug #27704: autoip starts with wrong address
938 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
939 of network byte order
941 2009-10-11 Simon Goldschmidt (Jörg Kesten)
942 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
943 which are not consecutive when retransmitting unacked segments
945 2009-10-09 Simon Goldschmidt
946 * opt.h: Fixed default values of some stats to only be enabled if used
947 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
949 2009-08-30 Simon Goldschmidt
950 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
951 function" by checking for loopback before calling ip_frag
953 2009-08-25 Simon Goldschmidt
954 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
956 2009-08-23 Simon Goldschmidt
957 * ppp.c: bug #27078: Possible memory leak in pppInit()
959 2009-08-23 Simon Goldschmidt
960 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
963 2009-08-23 Simon Goldschmidt
964 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
965 Fixed wrong parenthesis, added check in init.c
967 2009-08-23 Simon Goldschmidt
968 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
970 2009-08-23 Simon Goldschmidt
971 * many ppp files: bug #27267: Added include to string.h where needed
973 2009-08-23 Simon Goldschmidt
974 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
981 2009-05-10 Simon Goldschmidt
982 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
983 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
984 one pbuf to help MACs that don't support scatter-gather DMA.
986 2009-05-09 Simon Goldschmidt
987 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
988 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
990 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
991 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
992 extended info about the currently received packet.
994 2009-04-27 Simon Goldschmidt
995 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
997 2009-04-25 Simon Goldschmidt
998 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
999 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1001 2009-04-21 Simon Goldschmidt
1002 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1003 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1004 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1005 as an external function for lookup.
1007 2009-04-15 Simon Goldschmidt
1008 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1010 2009-03-31 Kieran Mansley
1011 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1012 TCP timestamp options, off by default. Rework tcp_enqueue() to
1013 take option flags rather than specified option data
1015 2009-02-18 Simon Goldschmidt
1016 * cc.h: Added printf formatter for size_t: SZT_F
1018 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1019 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1022 2009-02-12 Simon Goldschmidt
1023 * init.h: Added LWIP_VERSION to get the current version of the stack
1025 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1026 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1027 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1030 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1031 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1032 is only used by UDPLITE at present, so conditionalise it.
1034 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1035 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1036 "seed" address. This should reduce AUTOIP conflicts if
1037 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1039 2008-10-02 Jonathan Larmour and Rishi Khan
1040 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1043 2008-06-30 Simon Goldschmidt
1044 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1045 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1046 mem_free to run between mem_malloc iterations. Added illegal counter for
1049 2008-06-27 Simon Goldschmidt
1050 * stats.h/.c, some other files: patch #6483: stats module improvement:
1051 Added defines to display each module's statistic individually, added stats
1052 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1054 2008-06-17 Simon Goldschmidt
1055 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1056 (define LWIP_ERR_T in cc.h)
1058 2008-06-17 Simon Goldschmidt
1059 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1062 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1063 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1064 modified version of patch # 6370: Moved loopif code to netif.c so that
1065 loopback traffic is supported on all netifs (all local IPs).
1066 Added option to limit loopback packets for each netifs.
1070 2009-08-12 Kieran Mansley
1071 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1072 out of window or out of order properly
1074 2009-08-12 Kieran Mansley
1075 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1077 2009-07-28 Simon Goldschmidt
1078 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1080 2009-07-27 Kieran Mansley
1081 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1083 2009-07-09 Kieran Mansley
1084 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1085 recv_avail and don't increment counters until message successfully
1088 2009-06-25 Kieran Mansley
1089 * api_msg.c api.h: BUG26722: initialise netconn write variables
1092 2009-06-25 Kieran Mansley
1093 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1095 2009-06-25 Kieran Mansley
1096 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1097 simultaneous close behaviour, and make snd_nxt have the same meaning
1100 2009-05-12 Simon Goldschmidt
1101 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1102 arp_table / uses etharp_query" by adding etharp_gratuitous()
1104 2009-05-12 Simon Goldschmidt
1105 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1106 to the IP header (used by igmp_ip_output_if)
1108 2009-05-06 Simon Goldschmidt
1109 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1110 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1112 2009-05-05 Simon Goldschmidt
1113 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1116 2009-05-04 Simon Goldschmidt
1117 * init.c: snmp was not initialized in lwip_init()
1119 2009-05-04 Frédéric Bernon
1120 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1122 2009-05-03 Simon Goldschmidt
1123 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1124 (and unsent->next == NULL)
1126 2009-05-02 Simon Goldschmidt
1127 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1128 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1130 2009-05-02 Simon Goldschmidt
1131 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1133 2009-05-01 Simon Goldschmidt
1134 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1136 2009-05-01 Simon Goldschmidt
1137 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1139 2009-04-29 Frédéric Bernon
1140 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1141 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1142 of broadcast packets even when this option wasn't set. Port maintainers
1143 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1144 If you want this option also filter broadcast on recv operations, you also
1145 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1147 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1148 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1149 DHCP/AUTOIP cooperation
1151 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1152 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1153 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1154 right place in tcp_output and tcp_rexmit).
1156 2009-04-25 Simon Goldschmidt
1157 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1158 when debugging": memp_sizes contained the wrong sizes (including sanity
1159 regions); memp pools for MEM_USE_POOLS were too small
1161 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1162 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1163 behavior, with with ip address string not ended by a '\0', a space or a
1166 2009-04-19 Simon Goldschmidt
1167 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1168 pcb->err is called, not pcb->connected (with an error code).
1170 2009-04-19 Simon Goldschmidt
1171 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1172 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1174 2009-04-19 Simon Goldschmidt
1175 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1176 in the header pbuf, not the data pbuf)
1178 2009-04-18 Simon Goldschmidt
1179 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1181 2009-04-15 Simon Goldschmidt
1182 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1184 2009-04-15 Simon Goldschmidt
1185 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1187 2009-04-15 Simon Goldschmidt
1188 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1189 ip_hinted_output() (for smaller code mainly)
1191 2009-04-15 Simon Goldschmidt
1192 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1194 2009-04-15 Simon Goldschmidt
1195 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1196 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1197 is big enough in dhcp_start
1199 2009-04-15 Simon Goldschmidt
1200 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1202 2009-04-15 Simon Goldschmidt
1203 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1205 2009-04-15 Simon Goldschmidt
1206 * sockets.c: bug #26121: set_errno can be overridden
1208 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1209 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1212 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1213 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1216 2009-03-31 Kieran Mansley
1217 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1218 updates are calculated and sent (BUG20515)
1220 * tcp_in.c: cope with SYN packets received during established states,
1221 and retransmission of initial SYN.
1223 * tcp_out.c: set push bit correctly when tcp segments are merged
1225 2009-03-27 Kieran Mansley
1226 * tcp_out.c set window correctly on probes (correcting change made
1229 2009-03-26 Kieran Mansley
1230 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1231 connections where no reset required (bug #25622)
1233 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1236 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1237 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1238 too small depending on MEM_ALIGNMENT
1240 2009-02-16 Simon Goldschmidt
1241 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1242 converted size argument of netconn_write to 'size_t'
1244 2009-02-16 Simon Goldschmidt
1245 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1246 by moving accept callback function pointer to TCP_PCB_COMMON
1248 2009-02-12 Simon Goldschmidt
1249 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1252 2009-02-11 Simon Goldschmidt
1253 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1255 2009-02-11 Simon Goldschmidt
1256 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1257 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1259 2009-02-10 Simon Goldschmidt
1260 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1261 Accepts_pending is decrease on a corresponding listen pcb when a connection
1262 in state SYN_RCVD is close.
1264 2009-01-28 Jonathan Larmour
1265 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1268 2008-12-19 Simon Goldschmidt
1269 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1271 2008-12-10 Tamas Somogyi, Frédéric Bernon
1272 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1273 port uses deleted netbuf.
1275 2008-10-18 Simon Goldschmidt
1276 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1279 2008-10-15 Simon Goldschmidt
1280 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1281 by packing the struct ip_reass_helper.
1283 2008-10-03 David Woodhouse, Jonathan Larmour
1284 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1286 2008-10-02 Jonathan Larmour
1287 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1288 padding is included.
1290 2008-09-30 Jonathan Larmour
1291 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1292 assertion check that addrlen isn't NULL.
1294 2008-09-30 Jonathan Larmour
1295 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1297 2008-08-26 Simon Goldschmidt
1298 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1299 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1301 2008-08-14 Simon Goldschmidt
1302 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1303 tcp_close returns != ERR_OK)
1305 2008-07-08 Frédéric Bernon
1306 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1307 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1309 2008-06-24 Jonathan Larmour
1310 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1311 if tcp_seg_copy fails.
1313 2008-06-17 Simon Goldschmidt
1314 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1315 and created defines for swapping bytes and folding u32 to u16.
1317 2008-05-30 Kieran Mansley
1318 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1319 rather than rcv_ann_wnd when deciding if packets are in-window.
1320 Contributed by <arasmussen@consultant.datasys.swri.edu>
1322 2008-05-30 Kieran Mansley
1323 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1324 passing as function pointers when MEM_LIBC_MALLOC is defined.
1326 2008-05-09 Jonathan Larmour
1327 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1328 stop it being treated as a fatal error.
1330 2008-04-15 Simon Goldschmidt
1331 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1334 2008-03-27 Simon Goldschmidt
1335 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1336 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1337 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1338 or heap memory from interrupt context
1340 2008-03-26 Simon Goldschmidt
1341 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1342 host sent a zero mss as TCP option.
1349 2008-03-10 Jonathan Larmour
1350 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1351 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1353 2008-01-22 Frédéric Bernon
1354 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1355 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1357 2008-01-14 Frédéric Bernon
1358 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1359 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1360 tcp_recv callback (see rawapi.txt).
1362 2008-01-14 Frédéric Bernon, Marc Chaland
1363 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1365 2008-01-12 Frédéric Bernon
1366 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1367 netconn::sem per netconn::op_completed like suggested for the task #7490
1368 "Add return value to sys_mbox_post".
1370 2008-01-12 Frédéric Bernon
1371 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1372 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1373 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1375 2008-01-10 Frédéric Bernon
1376 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1377 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1378 "blocking" ("block" parameter = 1).
1380 2008-01-10 Frédéric Bernon
1381 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1382 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1383 "Add return value to sys_mbox_post".
1385 2008-01-05 Frédéric Bernon
1386 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1387 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1388 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1389 indicate the number of pointers query by the mailbox. There is three defines
1390 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1391 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1392 parameter in your implementation, but to ignore it to keep the previous behavior.
1393 The new sys_mbox_trypost function return a value to know if the mailbox is
1394 full or if the message is posted. Take a look to sys_arch.txt for more details.
1395 This new function is used in tcpip_input (so, can be called in an interrupt
1396 context since the function is not blocking), and in recv_udp and recv_raw.
1398 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1399 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1400 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1401 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1402 documentation in the rawapi.txt file.
1404 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1405 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1407 2007-12-31 Frédéric Bernon, Luca Ceresoli
1408 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1409 in autoip". The change in etharp_raw could be removed, since all calls to
1410 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1411 wrong in the future.
1413 2007-12-30 Frédéric Bernon, Tom Evans
1414 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1415 Filtering" reported by Tom Evans.
1417 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1418 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1419 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1420 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1421 keep accepting new connections.
1423 2007-12-13 Frédéric Bernon
1424 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1425 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1427 2007-12-12 Frédéric Bernon
1428 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1429 are the one which have ram usage.
1431 2007-12-05 Frédéric Bernon
1432 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1433 set of variables (=0) or a local one (=1). In this last case, your port should
1434 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1435 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1437 2007-12-03 Simon Goldschmidt
1438 * ip.c: ip_input: check if a packet is for inp first before checking all other
1439 netifs on netif_list (speeds up packet receiving in most cases)
1441 2007-11-30 Simon Goldschmidt
1442 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1443 UDP: move a (connected) pcb selected for input to the front of the list of
1444 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1447 2007-11-28 Simon Goldschmidt
1448 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1450 2007-11-25 Simon Goldschmidt
1451 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1454 2007-11-24 Simon Goldschmidt
1455 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1456 to the new file netdb.c; included lwip_getaddrinfo.
1458 2007-11-21 Simon Goldschmidt
1459 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1460 based on the MTU of the netif used to send. Enabled by default. Disable by
1461 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1463 2007-11-19 Frédéric Bernon
1464 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1465 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1466 copy dns payload to parse the response), return an error if there is no place
1467 for a new query, and fix some minor problems.
1469 2007-11-16 Simon Goldschmidt
1470 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1471 removed files: core/inet.c, core/inet6.c
1472 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1473 inet and chksum part; changed includes in all lwIP files as appropriate
1475 2007-11-16 Simon Goldschmidt
1476 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1477 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1478 (gethostbyname/gethostbyname_r).
1480 2007-11-15 Jim Pettinato, Frédéric Bernon
1481 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1482 requests with RAW api interface. Initialization is done in lwip_init() with
1483 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1484 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1485 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1486 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1487 list with points to improve.
1489 2007-11-06 Simon Goldschmidt
1490 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1491 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1492 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1494 2007-11-06 Simon Goldschmidt
1495 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1496 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1497 implementation from netconn api applications.
1499 2007-11-03 Frédéric Bernon
1500 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1501 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1502 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1503 it. This is a first release which have to be improve for TCP. Note it used the
1504 netconn::recv_avail which need to be more "thread-safe" (note there is already
1505 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1507 2007-11-01 Frédéric Bernon, Marc Chaland
1508 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1509 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1510 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1511 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1512 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1514 2007-10-24 Frédéric Bernon
1515 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1516 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1517 some code (like we have talk in "patch #5919 : Create compile switch to remove
1518 select code"), but it could be done later.
1520 2007-10-08 Simon Goldschmidt
1521 * many files: Changed initialization: many init functions are not needed any
1522 more since we now rely on the compiler initializing global and static
1525 2007-10-06 Simon Goldschmidt
1526 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1527 to enqueue the received pbufs so that multiple packets can be reassembled
1528 simultaneously and no static reassembly buffer is needed.
1530 2007-10-05 Simon Goldschmidt
1531 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1532 all netifs (or ports) can use it.
1534 2007-10-05 Frédéric Bernon
1535 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1536 common function to reduce a little bit the footprint (for all functions using
1537 only the "netif" parameter).
1539 2007-10-03 Frédéric Bernon
1540 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1541 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1542 a little bit the footprint (for all functions using only the "netif" parameter).
1544 2007-09-15 Frédéric Bernon
1545 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1546 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1547 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1548 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1550 2007-09-10 Frédéric Bernon
1551 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1552 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1553 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1554 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1555 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1556 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1557 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1558 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1559 when it's queried (any direct call to "sysuptime" is changed by a call to
1560 snmp_get_sysuptime).
1562 2007-09-09 Frédéric Bernon, Bill Florac
1563 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1564 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1565 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1566 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1567 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1568 the next query message to receive the matching multicast streams).
1570 2007-09-08 Frédéric Bernon
1571 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1572 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1573 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1574 Enable to access to these fields with LWIP_TCP=0.
1576 2007-09-05 Frédéric Bernon
1577 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1578 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1579 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1580 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1581 help to reduce footprint, and to reduce "visibility" on the Internet.
1583 2007-09-05 Frédéric Bernon, Bill Florac
1584 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1585 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1586 parameters have to be provided: a task name, and a task stack size. For this
1587 one, since it's platform dependant, you could define the best one for you in
1588 your lwipopts.h. For port maintainers, you can just add these new parameters
1589 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1592 2007-09-05 Frédéric Bernon
1593 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1594 inside init.c for task #7142 "Sanity check user-configurable values".
1596 2007-09-04 Frédéric Bernon, Bill Florac
1597 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1598 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1599 value). It will avoid potential fragmentation problems, use a counter to know
1600 how many times a group is used on an netif, and free it when all applications
1601 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1602 check if LWIP_IGMP!=0).
1604 2007-09-03 Frédéric Bernon
1605 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1606 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1607 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1608 and/or the "interface" field (for netconn layer), for join/leave operations.
1609 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1610 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1612 2007-08-30 Frédéric Bernon
1613 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1614 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1615 with other API (application based on raw API, or future "socket2" API). Ports
1616 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1618 2007-08-30 Frédéric Bernon, Jonathan Larmour
1619 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1620 user-configurable values".
1622 2007-08-29 Frédéric Bernon
1623 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1624 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1625 spirit than the others modules. Modify some IGMP debug traces.
1627 2007-08-29 Frédéric Bernon
1628 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1629 Add lwip_init function to regroup all modules initializations, and to provide
1630 a place to add code for task #7142 "Sanity check user-configurable values".
1631 Ports maintainers should remove direct initializations calls from their code,
1632 and add init.c in their makefiles. Note that lwip_init() function is called
1633 inside tcpip_init, but can also be used by raw api users since all calls are
1634 disabled when matching options are disabled. Also note that their is new options
1635 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1637 2007-08-26 Marc Boucher
1638 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1639 since they can under certain circumstances be called with an invalid conn
1640 pointer after the connection has been closed (and conn has been freed).
1642 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1643 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1644 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1646 2007-08-22 Frédéric Bernon
1647 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1648 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1650 2007-08-22 Frédéric Bernon
1651 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1652 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1653 name is tcpip_input (we keep the name of 1.2.0 function).
1655 2007-08-17 Jared Grubb
1656 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1657 settings into new memp_std.h and optional user file lwippools.h. This adds
1658 more dynamic mempools, and allows the user to create an arbitrary number of
1659 mempools for mem_malloc.
1661 2007-08-16 Marc Boucher
1662 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1663 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1664 close the connection.
1666 2007-08-16 Marc Boucher
1667 * sockets.c: lwip_accept(): check netconn_peer() error return.
1669 2007-08-16 Marc Boucher
1670 * mem.c, mem.h: Added mem_calloc().
1672 2007-08-16 Marc Boucher
1673 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1674 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1675 and starving other message types.
1676 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1678 2007-08-16 Marc Boucher
1679 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1680 type and flgs (later renamed to flags).
1681 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1682 Improved lwip_recvfrom(). TCP push now propagated.
1684 2007-08-16 Marc Boucher
1685 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1688 2007-08-16 Marc Boucher
1689 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1690 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1691 Added PPPoE support and various PPP improvements.
1693 2007-07-25 Simon Goldschmidt
1694 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1695 making netbuf_copy_partial use this function.
1697 2007-07-25 Simon Goldschmidt
1698 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1699 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1702 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1703 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1704 a link callback in the netif struct, and functions to handle it. Be carefull
1705 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1706 if you want to be sure to be compatible with future changes...
1708 2007-06-30 Frédéric Bernon
1709 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1711 2007-06-21 Simon Goldschmidt
1712 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1713 LWIP_AUTOIP =0 and =1 to remove redundant code.
1715 2007-06-21 Simon Goldschmidt
1716 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1717 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1718 heap. This both prevents memory fragmentation and gives a higher speed
1719 at the cost of more memory consumption. Turned off by default.
1721 2007-06-21 Simon Goldschmidt
1722 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1723 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1724 int to be able to send a bigger buffer than 64K with one time (mainly
1725 used from lwip_send).
1727 2007-06-21 Simon Goldschmidt
1728 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1729 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1731 2007-06-21 Simon Goldschmidt
1732 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1733 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1734 changes on low memory or empty send-buffer.
1736 2007-06-18 Simon Goldschmidt
1737 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1738 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1739 used for ethernet and struct eth_addr already had a defined length of 6).
1741 2007-06-17 Simon Goldschmidt
1742 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1743 to disable UDP checksum generation on transmit.
1745 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1746 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1747 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1748 this macro to check "conn" parameter in api_msg.c functions.
1750 2007-06-11 Simon Goldschmidt
1751 * sockets.c, sockets.h: Added UDP lite support for sockets
1753 2007-06-10 Simon Goldschmidt
1754 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1755 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1758 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1759 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1760 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1761 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1762 (see TODO mark in the source code).
1764 2007-06-09 Simon Goldschmidt
1765 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1766 etharp_output() to match netif->output so etharp_output() can be used
1767 directly as netif->output to save one function call.
1769 2007-06-08 Simon Goldschmidt
1770 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1771 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1772 added initialization of those to ethernetif, slipif and loopif.
1774 2007-05-18 Simon Goldschmidt
1775 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1776 (defaulting to off for now) that can be set to 0 to send fragmented
1777 packets by passing PBUF_REFs down the stack.
1779 2007-05-23 Frédéric Bernon
1780 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1781 connections, such present in patch #5959.
1783 2007-05-23 Frédéric Bernon
1784 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1785 code in only one part...
1787 2007-05-18 Simon Goldschmidt
1788 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1789 elements to overflow. This is achieved by adding some bytes before and after
1790 each pool element (increasing their size, of course), filling them with a
1791 prominent value and checking them on freeing the element.
1792 Set it to 2 to also check every element in every pool each time memp_malloc()
1793 or memp_free() is called (slower but more helpful).
1795 2007-05-10 Simon Goldschmidt
1796 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1797 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1800 2007-05-11 Frédéric Bernon
1801 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1802 Include a function pointer instead of a table index in the message to reduce
1803 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1804 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1806 2007-05-10 Simon Goldschmidt
1807 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1808 \ extern "C" {' in all header files. Now you can write your application using
1809 the lwIP stack in C++ and simply #include the core files. Note I have left
1810 out the netif/ppp/*h header files for now, since I don't know which files are
1811 included by applications and which are for internal use only.
1813 2007-05-09 Simon Goldschmidt
1814 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1815 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1816 situations where some compilers might inline the copy and save a function
1817 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1819 2007-05-08 Simon Goldschmidt
1820 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1821 to be overriden in case the C-library malloc implementation is not protected
1822 against concurrent access.
1824 2007-05-04 Simon Goldschmidt (Atte Kojo)
1825 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1826 multiple packets to the same host.
1828 2007-05-04 Frédéric Bernon, Jonathan Larmour
1829 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1830 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1831 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1832 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1833 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1834 these fields are now renamed "addr" & "port".
1836 2007-04-11 Jonathan Larmour
1837 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1838 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1839 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1840 by the port in sys_arch.h if desired.
1842 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1843 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1844 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1845 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1847 2007-04-05 Frédéric Bernon
1848 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1850 2007-04-04 Simon Goldschmidt
1851 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1852 use this for and architecture-independent form to tell the compiler you intentionally
1853 are not using this variable. Can be overriden in cc.h.
1855 2007-03-28 Frédéric Bernon
1856 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1857 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1858 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1859 It will be used by DHCP to register a client hostname, but can also be use when you call
1862 2007-03-28 Frédéric Bernon
1863 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1864 initialize a network interface's flag with. It tell this interface is an ethernet
1865 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1866 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1868 2007-03-26 Frédéric Bernon, Jonathan Larmour
1869 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1870 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1871 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1872 is done in tcpip_init function.
1874 2007-03-22 Frédéric Bernon
1875 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1876 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1877 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1878 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1879 but never used. Fix msg_in.c with the correct #if test for a stat display.
1881 2007-03-21 Kieran Mansley
1882 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1883 Provides callback on netif up/down state change.
1885 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1886 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1887 ip.c, netif.h, tcpip.c, opt.h:
1888 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1889 filter per all network interfaces. Declare a new function in netif to enable to
1890 control the MAC filter (to reduce lwIP traffic processing).
1892 2007-03-11 Frédéric Bernon
1893 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1894 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1895 unless you know what you're doing (default are RFC1122 compliant). Note
1896 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1898 2007-03-08 Frédéric Bernon
1899 * tcp.h: Keepalive values can be configured at compile time, but don't change
1900 this unless you know what you're doing (default are RFC1122 compliant).
1902 2007-03-08 Frédéric Bernon
1903 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1904 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1905 on UDP sockets/netconn.
1907 2007-03-08 Simon Goldschmidt
1908 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1910 2007-03-06 Frédéric Bernon
1911 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1912 Implement SO_RCVTIMEO on UDP sockets/netconn.
1914 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1915 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1916 on the stack and remove the API msg type from memp
1918 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1919 * sockets.h, sockets.c: Move socket initialization to new
1920 lwip_socket_init() function.
1921 NOTE: this changes the API with ports. Ports will have to be
1922 updated to call lwip_socket_init() now.
1924 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1925 * api_lib.c: Use memcpy in netbuf_copy_partial.
1930 2008-03-17 Frédéric Bernon, Ed Kerekes
1931 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1932 some problems to fill the IP header on some targets, use now the
1933 ip.h macros to do it).
1935 2008-03-13 Frédéric Bernon
1936 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1937 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1938 TCP connection caused a crash. Note that using (lwip_)recvfrom
1939 like this is a bit slow and that using (lwip)getpeername is the
1940 good lwip way to do it (so, using recv is faster on tcp sockets).
1942 2008-03-12 Frédéric Bernon, Jonathan Larmour
1943 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1944 recv_raw() does not consume data", and the ping sample (with
1945 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1946 returned the IP payload, without the IP header).
1948 2008-03-04 Jonathan Larmour
1949 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1950 and/or warnings on some systems where mem_size_t and size_t differ.
1951 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1953 2008-03-04 Kieran Mansley (contributions by others)
1954 * Numerous small compiler error/warning fixes from contributions to
1955 mailing list after 1.3.0 release candidate made.
1957 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1958 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1960 2008-01-15 Kieran Mansley
1961 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1962 prevented from sending by a small send window, not just a zero
1965 2008-01-09 Jonathan Larmour
1966 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1967 conflict with Linux system headers.
1969 2008-01-06 Jonathan Larmour
1970 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1971 address entirely on receiving a DHCPNAK, and restarting discovery.
1973 2007-12-21 Simon Goldschmidt
1974 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1975 is not protected" by using new macros for interlocked access to modify/test
1976 netconn->recv_avail.
1978 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1979 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1981 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1982 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1983 of silly window avoidance and prevent lwIP from shrinking the window)
1985 2007-12-04 Simon Goldschmidt
1986 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1987 data packet was lost): add assert that all segment lists are empty in
1988 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1989 state from LAST_ACK in tcp_process
1991 2007-12-02 Simon Goldschmidt
1992 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1993 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1994 has to be set to 0 in lwipopts.h
1996 2007-12-02 Simon Goldschmidt
1997 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1998 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1999 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2000 This is a fix for thread-safety and allocates all items needed for a netconn
2001 when the netconn is created.
2003 2007-11-30 Simon Goldschmidt
2004 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2005 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2006 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2007 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2009 2007-11-27 Simon Goldschmidt
2010 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2011 letting ip_route only use netifs that are up.
2013 2007-11-27 Simon Goldschmidt
2014 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2015 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2016 sockets block most operations once they have seen a fatal error.
2018 2007-11-27 Simon Goldschmidt
2019 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2020 netif to send as an argument (to be able to send on netifs that are down).
2022 2007-11-26 Simon Goldschmidt
2023 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2026 2007-11-21 Simon Goldschmidt
2027 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2028 Fixed the nagle algorithm; nagle now also works for all raw API applications
2029 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2031 2007-11-12 Frédéric Bernon
2032 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2033 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2034 context in do_getaddr.
2036 2007-11-10 Simon Goldschmidt
2037 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2038 happen any time). Now the packet simply isn't enqueued when out of memory.
2040 2007-11-01 Simon Goldschmidt
2041 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2042 TCP_MSS if that is smaller) as long as no MSS option is received from the
2045 2007-11-01 Simon Goldschmidt
2046 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2047 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2048 sending our configured TCP_MSS instead of the one received).
2050 2007-11-01 Simon Goldschmidt
2051 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2052 calculated based on the configured TCP_MSS, not on the MSS option received
2055 2007-10-09 Simon Goldschmidt
2056 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2057 short and also was generated wrong if checksum coverage != tot_len;
2058 receive: checksum was calculated wrong if checksum coverage != tot_len
2060 2007-10-08 Simon Goldschmidt
2061 * mem.c: lfree was not updated in mem_realloc!
2063 2007-10-07 Frédéric Bernon
2064 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2065 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2066 this change cause an API breakage for netconn_addr, since a parameter
2067 type change. Any compiler should cause an error without any changes in
2068 yours netconn_peer calls (so, it can't be a "silent change"). It also
2069 reduce a little bit the footprint for socket layer (lwip_getpeername &
2070 lwip_getsockname use now a common lwip_getaddrname function since
2071 netconn_peer & netconn_addr have the same parameters).
2073 2007-09-20 Simon Goldschmidt
2074 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2075 by checking tcp_tw_pcbs also
2077 2007-09-19 Simon Goldschmidt
2078 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2080 2007-09-15 Mike Kleshov
2081 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2083 2007-09-06 Frédéric Bernon
2084 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2085 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2086 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2087 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2089 2007-08-30 Frédéric Bernon
2090 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2091 and fix some coding style.
2093 2007-08-28 Frédéric Bernon
2094 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2095 kind of packets. These packets are considered like Ethernet packets (payload
2096 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2097 are considered like IP packets (payload pointing to iphdr).
2099 2007-08-27 Frédéric Bernon
2100 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2101 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2102 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2104 2007-08-24 Kieran Mansley
2105 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2106 compiler (Paradigm C++)
2108 2007-08-09 Frédéric Bernon, Bill Florac
2109 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2110 Introduce IGMP_STATS to centralize statistics management.
2112 2007-08-09 Frédéric Bernon, Bill Florac
2113 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2114 packet on a udp pcb binded on an netif's IP address, and not on "any".
2116 2007-08-09 Frédéric Bernon, Bill Florac
2117 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2118 This is mainly on using lookup/lookfor, and some coding styles...
2120 2007-07-26 Frédéric Bernon (and "thedoctor")
2121 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2123 2007-07-25 Simon Goldschmidt
2124 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2125 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2126 (tcp_output is called again later from tcp timers).
2128 2007-07-25 Simon Goldschmidt
2129 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2130 copy_from_pbuf, which illegally modified the given pbuf.
2132 2007-07-25 Simon Goldschmidt
2133 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2134 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2136 2007-07-24 Simon Goldschmidt
2137 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2138 correct state (must be CLOSED).
2140 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2141 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2142 allocation. It now returns NULL.
2144 2007-07-13 Frédéric Bernon
2145 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2148 2007-07-13 Frédéric Bernon
2149 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2150 because current code doesn't follow rawapi.txt documentation.
2152 2007-07-13 Kieran Mansley
2153 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2154 out of sequence processing of received packets
2156 2007-07-03 Simon Goldschmidt
2157 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2158 assumption is made that this pbuf is in one piece (i.e. not chained). These
2159 assumptions clash with the possibility of converting to fully pool-based
2160 pbuf implementations, where PBUF_RAM pbufs might be chained.
2162 2007-07-03 Simon Goldschmidt
2163 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2164 when closing tcp netconns: removed conn->sem, less context switches when
2165 closing, both netconn_close and netconn_delete should safely close tcp
2168 2007-07-02 Simon Goldschmidt
2169 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2170 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2171 to cache ARP table indices with each pcb instead of single-entry cache for
2174 2007-07-02 Simon Goldschmidt
2175 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2176 warnings when assigning to smaller types.
2178 2007-06-28 Simon Goldschmidt
2179 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2181 2007-06-28 Simon Goldschmidt
2182 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2183 a segment contained chained pbufs)
2185 2007-06-28 Frédéric Bernon
2186 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2187 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2188 possible to define this macro in your own lwipopts.h to always use C library's
2189 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2191 2007-06-28 Frédéric Bernon
2192 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2193 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2194 in api_lib/api_msg (use pointers and not type with table, etc...)
2196 2007-06-26 Simon Goldschmidt
2197 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2199 2007-06-25 Simon Goldschmidt
2200 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2201 for udp packets with no matching pcb.
2203 2007-06-25 Simon Goldschmidt
2204 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2205 could get udp input packets if the remote side matched.
2207 2007-06-13 Simon Goldschmidt
2208 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2209 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2211 2007-06-13 Simon Goldschmidt
2212 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2213 -> netconn_new_..() does not allocate a new connection for unsupported
2216 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2217 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2218 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2220 2007-06-13 Frédéric Bernon, Matthias Weisser
2221 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2222 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2223 some macro names collision with some OS macros.
2225 2007-06-11 Simon Goldschmidt
2226 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2227 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2228 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2231 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2232 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2233 where TCP flags wasn't initialized in tcp_keepalive.
2235 2007-06-03 Simon Goldschmidt
2236 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2237 registered, p->payload was modified without modifying p->len if sending
2238 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2240 2007-06-03 Simon Goldschmidt
2241 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2242 re-used the input pbuf even if that didn't have enough space to include the
2243 link headers. Now the space is tested and a new pbuf is allocated for the
2244 echo response packet if the echo request pbuf isn't big enough.
2246 2007-06-01 Simon Goldschmidt
2247 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2249 2007-05-23 Frédéric Bernon
2250 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2251 allocated by do_listen if success) and netconn_accept errors handling. In
2252 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2253 by ASSERT, except for netconn_delete.
2255 2007-05-23 Frédéric Bernon
2256 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2257 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2258 directly close the recvmbox).
2260 2007-05-22 Simon Goldschmidt
2261 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2262 bound but unconnected (and non-listening) tcp_pcbs.
2264 2007-05-22 Frédéric Bernon
2265 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2266 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2267 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2268 like "sys_timeout" in their application threads.
2270 2007-05-22 Frédéric Bernon
2271 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2272 which parameters are used by which do_xxx function, and to avoid "misusing"
2273 parameters (patch #5938).
2275 2007-05-22 Simon Goldschmidt
2276 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2277 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2278 is only 8 bits wide. This affects the api, as there, the protocol was
2281 2007-05-18 Simon Goldschmidt
2282 * memp.c: addition to patch #5913: smaller pointer was returned but
2283 memp_memory was the same size -> did not save memory.
2285 2007-05-16 Simon Goldschmidt
2286 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2289 2007-05-16 Simon Goldschmidt
2290 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2291 as the one of the netif used for sending to prevent sending from old
2292 addresses after a netif address gets changed (partly fixes bug #3168).
2294 2007-05-16 Frédéric Bernon
2295 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2296 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2297 tcpip_init) because we have to be sure that network interfaces are already
2298 added (mac filter is updated only in igmp_init for the moment).
2300 2007-05-16 Simon Goldschmidt
2301 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2302 into sys_arch_sem_wait calls to prevent timers from running while waiting
2303 for the heap. This fixes bug #19167.
2305 2007-05-13 Simon Goldschmidt
2306 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2307 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2310 2007-05-07 Simon Goldschmidt
2311 * mem.c: Another attempt to fix bug #17922.
2313 2007-05-04 Simon Goldschmidt
2314 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2315 implementation so that it can be reused (don't allocate the target
2316 pbuf inside pbuf_copy()).
2318 2007-05-04 Simon Goldschmidt
2319 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2320 to save a little RAM (next pointer of memp is not used while not in pool).
2323 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2326 2007-04-23 Simon Goldschmidt
2327 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2328 in NULL reference for incoming TCP packets". Loopif has to be configured
2329 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2330 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2331 putting packets on a list that is fed to the stack by calling loopif_poll()
2332 (single-thread / NO_SYS / polling environment where e.g.
2333 netif->input() = ip_input).
2335 2007-04-17 Jonathan Larmour
2336 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2337 the difference between two u16_t's.
2338 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2339 MEMP_NUM_NETCONN in sockets.c right now.
2341 2007-04-12 Jonathan Larmour
2342 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2344 2007-04-12 Kieran Mansley
2345 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2346 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2348 2007-04-11 Simon Goldschmidt
2349 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2350 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2351 pbuf.c: removed functions no needed any more (by etharp).
2353 2007-04-11 Kieran Mansley
2354 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2355 "Constant is long" warnings with 16bit compilers. Contributed by
2356 avatar@mmlab.cse.yzu.edu.tw
2358 2007-04-05 Frédéric Bernon, Jonathan Larmour
2359 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2360 the mailbox is active". Now, the post is only done during a connect, and do_send,
2361 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2363 2007-04-03 Frédéric Bernon
2364 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2365 packets. See patch #5834.
2367 2007-03-30 Frédéric Bernon
2368 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2369 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2371 2007-03-30 Frédéric Bernon
2372 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2373 others environment defines (these were too "generic").
2375 2007-03-28 Frédéric Bernon
2376 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2377 result and can cause a crash. lwip_send now check netbuf_ref result.
2379 2007-03-28 Simon Goldschmidt
2380 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2381 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2382 defined. This is the way it should have been already (looking at
2385 2007-03-28 Kieran Mansley
2386 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2387 IP and TCP headers *and* physical link headers
2389 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2390 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2391 to send some garbage. It is not a definitive solution, but the patch does solve
2392 the problem for most cases.
2394 2007-03-22 Frédéric Bernon
2395 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2397 2007-03-22 Frédéric Bernon
2398 * api_lib.c: somes resources couldn't be freed if there was errors during
2399 netconn_new_with_proto_and_callback.
2401 2007-03-22 Frédéric Bernon
2402 * ethernetif.c: update netif->input calls to check return value. In older ports,
2403 it's a good idea to upgrade them, even if before, there could be another problem
2404 (access to an uninitialized mailbox).
2406 2007-03-21 Simon Goldschmidt
2407 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2408 by casting to unsigned).
2410 2007-03-21 Frédéric Bernon
2411 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2412 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2413 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2414 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2415 faster and more reliable communication between api_lib and tcpip.
2417 2007-03-21 Frédéric Bernon
2418 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2420 2007-03-21 Frédéric Bernon
2421 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2423 2007-03-21 Kieran Mansley
2424 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2427 2007-03-21 Kieran Mansley
2428 * Fix all uses of pbuf_header to check the return value. In some
2429 cases just assert if it fails as I'm not sure how to fix them, but
2430 this is no worse than before when they would carry on regardless
2433 2007-03-21 Kieran Mansley
2434 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2435 comment out missing header include in icmp.c
2437 2007-03-20 Frédéric Bernon
2438 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2439 synchronized with memp.h.
2441 2007-03-20 Frédéric Bernon
2442 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2443 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2444 network interfaces. Also fix a compiler warning.
2446 2007-03-20 Kieran Mansley
2447 * udp.c: Only try and use pbuf_header() to make space for headers if
2448 not a ROM or REF pbuf.
2450 2007-03-19 Frédéric Bernon
2451 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2454 2007-03-19 Frédéric Bernon
2455 * Remove unimplemented "memp_realloc" function from memp.h.
2457 2007-03-11 Simon Goldschmidt
2458 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2461 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2462 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2463 (missing `const' qualifier in socket functions), to get more compatible to
2464 standard POSIX sockets.
2466 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2467 * sockets.c: Add asserts inside bind, connect and sendto to check input
2468 parameters. Remove excessive set_errno() calls after get_socket(), because
2469 errno is set inside of get_socket(). Move last sock_set_errno() inside
2472 2007-03-09 Simon Goldschmidt
2473 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2474 was allocated too small.
2476 2007-03-06 Simon Goldschmidt
2477 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2478 the stack from concurrent access.
2480 2007-03-06 Frédéric Bernon, Dmitry Potapov
2481 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2482 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2484 2007-03-06 Simon Goldschmidt
2485 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2486 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2488 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2489 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2490 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2491 Allow to do ARP processing for incoming packets inside tcpip_thread
2492 (protecting ARP layer against concurrent access). You can also disable
2493 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2494 Older ports have to use tcpip_ethinput.
2496 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2497 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2498 from pointer target type"
2500 2007-03-05 Frédéric Bernon
2501 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2502 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2504 2007-03-04 Frédéric Bernon
2505 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2508 2007-03-04 Frédéric Bernon
2509 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2511 The api_msg struct stay on the stack (not moved to netconn struct).
2513 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2514 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2515 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2516 Also fixed cast warning in pbuf_alloc()
2518 2007-03-04 Simon Goldschmidt
2519 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2520 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2522 2007-03-03 Frédéric Bernon
2523 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2524 It is static, and never used in udp.c except udp_init().
2526 2007-03-02 Simon Goldschmidt
2527 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2528 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2529 initialized before tcpip_thread is running (e.g. before OS is started)
2531 2007-03-02 Frédéric Bernon
2532 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2535 2007-02-28 Kieran Mansley
2536 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2537 outside the region of the pbuf by pbuf_header()
2539 2007-02-28 Kieran Mansley
2540 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2541 when supplied timeout is also non-zero
2545 2006-12-05 Leon Woestenberg
2546 * CHANGELOG: Mention STABLE-1.2.0 release.
2550 2006-12-01 Christiaan Simons
2551 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2552 Note this is a workaround. Currently I have no other options left.
2554 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2555 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2556 to include/lwip/opt.h.
2557 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2558 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2559 * opt.h: Add above new options.
2561 2006-08-18 Christiaan Simons
2562 * tcp_{in,out}.c: added SNMP counters.
2563 * ipv4/ip.c: added SNMP counters.
2564 * ipv4/ip_frag.c: added SNMP counters.
2566 2006-08-08 Christiaan Simons
2567 * etharp.{c,h}: added etharp_find_addr() to read
2568 (stable) ethernet/IP address pair from ARP table
2570 2006-07-14 Christiaan Simons
2571 * mib_structs.c: added
2572 * include/lwip/snmp_structs.h: added
2573 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2575 2006-07-06 Christiaan Simons
2576 * snmp/asn1_{enc,dec}.c added
2578 * snmp/msg_{in,out}.c added
2579 * include/lwip/snmp_asn1.h added
2580 * include/lwip/snmp_msg.h added
2581 * doc/snmp_agent.txt added
2583 2006-03-29 Christiaan Simons
2584 * inet.c, inet.h: Added platform byteswap support.
2585 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2586 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2590 2006-11-30 Christiaan Simons
2591 * dhcp.c: Fixed false triggers of request_timeout.
2593 2006-11-28 Christiaan Simons
2594 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2596 2006-10-11 Christiaan Simons
2597 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2598 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2599 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2600 identifier from 170 to 136 (bug #17574).
2602 2006-10-10 Christiaan Simons
2603 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2605 2006-08-17 Christiaan Simons
2606 * udp.c: Fixed bug #17200, added check for broadcast
2607 destinations for PCBs bound to a unicast address.
2609 2006-08-07 Christiaan Simons
2610 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2612 2006-06-27 Christiaan Simons
2613 * api_msg.c: Applied patch for cold case (bug #11135).
2614 In accept_function() ensure newconn->callback is always initialized.
2616 2006-06-15 Christiaan Simons
2617 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2618 facilitate printing of mem_size_t and u16_t statistics.
2620 2006-06-14 Christiaan Simons
2621 * api_msg.c: Applied patch #5146 to handle allocation failures
2622 in accept() by Kevin Lawson.
2624 2006-05-26 Christiaan Simons
2625 * api_lib.c: Removed conn->sem creation and destruction
2626 from netconn_write() and added sys_sem_new to netconn_new_*.
2630 2006-03-03 Christiaan Simons
2631 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2632 access and added pbuf_alloc() return value checks.
2634 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2635 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2636 now handled by the checksum routine properly.
2638 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2639 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2640 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2642 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2643 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2644 submitted by Mitrani Hiroshi.
2646 2005-12-15 Christiaan Simons
2647 * inet.c: Disabled the added summing routine to preserve code space.
2649 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2650 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2651 Added Curt McDowell's optimized checksumming routine for future
2652 inclusion. Need to create test case for unaliged, aligned, odd,
2653 even length combination of cases on various endianess machines.
2655 2005-12-09 Christiaan Simons
2656 * inet.c: Rewrote standard checksum routine in proper portable C.
2658 2005-11-25 Christiaan Simons
2659 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2660 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2661 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2663 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2664 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2665 routine by Peter Jolasson.
2666 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2668 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2669 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2670 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2672 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2673 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2675 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2676 * udp.c: UDP pcb->recv() was called even when it was NULL.
2680 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2681 * etharp.*: Disabled multiple packets on the ARP queue.
2682 This clashes with TCP queueing.
2684 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2685 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2686 Halved the ARP period, doubled the period counts.
2687 ETHARP_MAX_PENDING now should be at least 2. This prevents
2688 the counter from reaching 0 right away (which would allow
2689 too little time for ARP responses to be received).
2691 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2692 * dhcp.c: Decline messages were not multicast but unicast.
2693 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2694 Do not try hard to insert arbitrary packet's source address,
2695 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2696 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2697 querying an address will see it appear in the cache (DHCP could
2698 suffer from this when a server invalidly gave an in-use address.)
2699 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2700 comparing network addresses (identifiers), not the network masks
2702 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2703 IP address actually belongs to the network of the given interface.
2705 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2706 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2710 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2711 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2712 even if one is already pending, if the rcv_wnd is above a threshold
2713 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2714 delayed ACK in order to open the window if the stack is only receiving data.
2716 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2717 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2719 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2720 * etharp.c: Make sure the first pbuf queued on an ARP entry
2721 is properly ref counted.
2723 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2724 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2725 warnings about comparison.
2726 * pbuf.c: Stopped compiler complaining of empty if statement
2727 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2728 * tcp.c: Stopped compiler complaining of empty if statement
2729 when LWIP_DEBUGF() empty.
2730 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2731 * inet.c: Added a couple of casts to quiet the compiler.
2732 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2734 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2735 * inet.c: Made data types consistent in inet_ntoa().
2736 Added casts for return values of checksum routines, to pacify compiler.
2737 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2738 Small corrections to some debugging statements, to pacify compiler.
2740 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2741 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2742 * ethernetif.c Updated low_level_output() to match prototype for
2743 netif->linkoutput and changed low_level_input() similarly for consistency.
2744 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2745 of raw_recv() in raw.h and so avoid compiler error.
2746 * sockets.c: Added trivial (int) cast to keep compiler happier.
2747 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2753 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2754 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2755 your cc.h file defines this either 1 or 0. If non-defined,
2757 * .c: Added <string.h> and <errno.h> includes where used.
2758 * etharp.c: Made some array indices unsigned.
2760 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2761 * netif.*: Added netif_set_up()/down().
2762 * dhcp.c: Changes to restart program flow.
2764 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2765 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2766 single-pass lookup for different candidates. Should exploit locality.
2768 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2769 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2770 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2771 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2772 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2776 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2777 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2778 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2779 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2780 is to prefix the 14-bit Ethernet headers with two padding bytes.
2782 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2783 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2784 * etharp.c: Fixed the case where the packet that initiates the ARP request
2785 is not queued, and gets lost. Fixed the case where the packets destination
2786 address is already known; we now always queue the packet and perform an ARP
2793 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2794 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2795 * Fixed two possible NULL references in rare cases.
2801 * Fixed DHCP which did not include the IP address in DECLINE messages.
2805 * etharp.c has been hauled over a bit.
2811 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2812 * Packets sent from ARP queue had invalid source hardware address.
2816 * Pass-by ARP requests do now update the cache.
2820 * No longer dependent on ctype.h.
2821 * New socket options.
2822 * Raw IP pcb support.
2828 * Some debug formatters and casts fixed.
2829 * Numereous fixes in PPP.
2833 * DEBUGF now is LWIP_DEBUGF
2834 * pbuf_dechain() has been re-enabled.
2835 * Mentioned the changed use of CVS branches in README.
2841 * Fixed pool pbuf memory leak in pbuf_alloc().
2842 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2843 Reported by Savin Zlobec.
2845 * PBUF_POOL chains had their tot_len field not set for non-first
2846 pbufs. Fixed in pbuf_alloc().
2850 * Added PPP stack contributed by Marc Boucher
2854 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2856 * ARP queueuing now queues the latest packet instead of the first.
2857 This is the RFC recommended behaviour, but can be overridden in
2864 * TCP has been fixed to deal with the new use of the pbuf->ref
2867 * DHCP dhcp_inform() crash bug fixed.
2871 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2872 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2873 Implemented by David Haas.
2879 * The packet buffer implementation has been enhanced to support
2880 zero-copy and copy-on-demand for packet buffers which have their
2881 payloads in application-managed memory.
2882 Implemented by David Haas.
2884 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2885 if an outgoing packet can be directly sent on the link, or perform
2886 a copy-on-demand when necessary.
2888 The application can safely assume the packet is sent, and the RAM
2889 is available to the application directly after calling udp_send()
2890 or similar function.
2894 * ARP_QUEUEING should now correctly work for all cases, including
2896 Implemented by Leon Woestenberg.
2900 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2901 to a '0.0.0.0' IP address.
2903 * The packet buffer implementation is changed. The pbuf->ref counter
2904 meaning has changed, and several pbuf functions have been
2905 adapted accordingly.
2907 * netif drivers have to be changed to set the hardware address length field
2908 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2909 See the contrib/ports/c16x cs8900 driver as a driver example.
2911 * netif's have a dhcp field that must be initialized to NULL by the driver.
2912 See the contrib/ports/c16x cs8900 driver as a driver example.
2914 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2915 logged in CVS but have not been explained here.
2917 (0.5.3) Changes since version 0.5.2
2921 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2922 threads because it wasn't protected by semaphores.
2926 * struct ip_addr now packed.
2928 * The name of the time variable in arp.c has been changed to ctime
2929 to avoid conflicts with the time() function.
2931 (0.5.2) Changes since version 0.5.1
2935 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2939 * A bug in tcp_parseopt() could cause the stack to hang because of a
2940 malformed TCP option.
2942 * The address of new connections in the accept() function in the BSD
2943 socket library was not handled correctly.
2945 * pbuf_dechain() did not update the ->tot_len field of the tail.
2947 * Aborted TCP connections were not handled correctly in all
2952 * All protocol header structs are now packed.
2954 * The ->len field in the tcp_seg structure now counts the actual
2955 amount of data, and does not add one for SYN and FIN segments.
2957 (0.5.1) Changes since version 0.5.0
2961 * Possible to run as a user process under Linux.
2963 * Preliminary support for cross platform packed structs.
2965 * ARP timer now implemented.
2969 * TCP output queue length was badly initialized when opening
2972 * TCP delayed ACKs were not sent correctly.
2974 * Explicit initialization of BSS segment variables.
2976 * read() in BSD socket library could drop data.
2978 * Problems with memory alignment.
2980 * Situations when all TCP buffers were used could lead to
2983 * TCP MSS option wasn't parsed correctly.
2985 * Problems with UDP checksum calculation.
2987 * IP multicast address tests had endianess problems.
2989 * ARP requests had wrong destination hardware address.
2993 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2995 * A ->linkoutput() member was added to struct netif.
2997 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2999 * ntoh* macros are now null definitions for big endian CPUs.
3001 (0.5.0) Changes since version 0.4.2
3005 * Redesigned operating system emulation layer to make porting easier.
3007 * Better control over TCP output buffers.
3009 * Documenation added.
3013 * Locking issues in buffer management.
3015 * Bugfixes in the sequential API.
3017 * IP forwarding could cause memory leakage. This has been fixed.
3021 * Directory structure somewhat changed; the core/ tree has been
3024 (0.4.2) Changes since version 0.4.1
3028 * Experimental ARP implementation added.
3030 * Skeleton Ethernet driver added.
3032 * Experimental BSD socket API library added.
3036 * In very intense situations, memory leakage could occur. This has
3041 * Variables named "data" and "code" have been renamed in order to
3042 avoid name conflicts in certain compilers.
3044 * Variable++ have in appliciable cases been translated to ++variable
3045 since some compilers generate better code in the latter case.
3047 (0.4.1) Changes since version 0.4
3051 * TCP: Connection attempts time out earlier than data
3052 transmissions. Nagle algorithm implemented. Push flag set on the
3053 last segment in a burst.
3055 * UDP: experimental support for UDP-Lite extensions.
3059 * TCP: out of order segments were in some cases handled incorrectly,
3060 and this has now been fixed. Delayed acknowledgements was broken
3061 in 0.4, has now been fixed. Binding to an address that is in use
3062 now results in an error. Reset connections sometimes hung an
3063 application; this has been fixed.
3065 * Checksum calculation sometimes failed for chained pbufs with odd
3066 lengths. This has been fixed.
3068 * API: a lot of bug fixes in the API. The UDP API has been improved
3069 and tested. Error reporting and handling has been
3070 improved. Logical flaws and race conditions for incoming TCP
3071 connections has been found and removed.
3073 * Memory manager: alignment issues. Reallocating memory sometimes
3074 failed, this has been fixed.
3076 * Generic library: bcopy was flawed and has been fixed.
3080 * API: all datatypes has been changed from generic ones such as
3081 ints, to specified ones such as u16_t. Functions that return
3082 errors now have the correct type (err_t).
3084 * General: A lot of code cleaned up and debugging code removed. Many
3085 portability issues have been fixed.
3087 * The license was changed; the advertising clause was removed.
3091 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3092 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3095 (0.4) Changes since version 0.3.1
3097 * Memory management has been radically changed; instead of
3098 allocating memory from a shared heap, memory for objects that are
3099 rapidly allocated and deallocated is now kept in pools. Allocation
3100 and deallocation from those memory pools is very fast. The shared
3101 heap is still present but is used less frequently.
3103 * The memory, memory pool, and packet buffer subsystems now support
3104 4-, 2-, or 1-byte alignment.
3106 * "Out of memory" situations are handled in a more robust way.
3108 * Stack usage has been reduced.
3110 * Easier configuration of lwIP parameters such as memory usage,
3111 TTLs, statistics gathering, etc. All configuration parameters are
3112 now kept in a single header file "lwipopts.h".
3114 * The directory structure has been changed slightly so that all
3115 architecture specific files are kept under the src/arch
3118 * Error propagation has been improved, both in the protocol modules
3121 * The code for the RTXC architecture has been implemented, tested
3124 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3125 the Internet checksum modules.
3127 * Bugs related to porting between a 32-bit and a 16-bit architecture
3128 have been found and corrected.
3130 * The license has been changed slightly to conform more with the
3131 original BSD license, including the advertisement clause.
3133 (0.3.1) Changes since version 0.3
3135 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3136 RAM never returned the RAM when the pbuf was deallocated.
3138 * TCP congestion control, window updates and retransmissions did not
3139 work correctly. This has now been fixed.
3141 * Bugfixes in the API.
3143 (0.3) Changes since version 0.2
3145 * New and improved directory structure. All include files are now
3146 kept in a dedicated include/ directory.
3148 * The API now has proper error handling. A new function,
3149 netconn_err(), now returns an error code for the connection in
3152 * Improvements in the memory management subsystem. The system now
3153 keeps a pointer to the lowest free memory block. A new function,
3154 mem_malloc2() tries to allocate memory once, and if it fails tries
3155 to free some memory and retry the allocation.
3157 * Much testing has been done with limited memory
3158 configurations. lwIP now does a better job when overloaded.
3160 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3162 * Many bugfixes in the TCP code:
3164 - Fixed a bug in tcp_close().
3166 - The TCP receive window was incorrectly closed when out of
3167 sequence segments was received. This has been fixed.
3169 - Connections are now timed-out of the FIN-WAIT-2 state.
3171 - The initial congestion window could in some cases be too
3172 large. This has been fixed.
3174 - The retransmission queue could in some cases be screwed up. This
3177 - TCP RST flag now handled correctly.
3179 - Out of sequence data was in some cases never delivered to the
3180 application. This has been fixed.
3182 - Retransmitted segments now contain the correct acknowledgment
3183 number and advertised window.
3185 - TCP retransmission timeout backoffs are not correctly computed
3186 (ala BSD). After a number of retransmissions, TCP now gives up
3189 * TCP connections now are kept on three lists, one for active
3190 connections, one for listening connections, and one for
3191 connections that are in TIME-WAIT. This greatly speeds up the fast
3192 timeout processing for sending delayed ACKs.
3194 * TCP now provides proper feedback to the application when a
3195 connection has been successfully set up.
3197 * More comments have been added to the code. The code has also been
3198 somewhat cleaned up.
3200 (0.2) Initial public release.