5 * [Enter new changes just after this line - do not remove this line]
9 2011-09-11: Simon Goldschmidt
10 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
11 to get a clear separation of which functions an application or port may use
14 2011-09-11: Simon Goldschmidt
15 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
16 initial local TCP/UDP ports (so that different port ranges are used after
17 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
19 2011-09-03: Simon Goldschmidt
20 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
22 2011-08-24: Simon Goldschmidt
23 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
25 2011-07-26: Simon Goldschmidt
26 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
27 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
29 2011-07-21: Simon Goldschmidt (patch by hanhui)
30 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
31 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
32 Also added code to allow ip_forward() to forward non-broadcast packets to
33 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
35 2011-07-21: Simon Goldschmidt
36 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
37 ioctl/FIONREAD return the size of the next pending datagram.
39 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
40 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
43 2011-05-25: Simon Goldschmidt
44 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
45 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
46 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
47 code so that the code is more readable.
49 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
50 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
51 Ivan! (this is work in progress: we're just post release anyway :-)
53 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
54 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
60 2011-09-11: Simon Goldschmidt
61 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
64 2011-09-09: Simon Goldschmidt
65 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
68 2011-09-03: Simon Goldschmidt
69 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
70 is aggregated and sent to application
72 2011-09-01: Simon Goldschmidt
73 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
76 2011-09-01: Simon Goldschmidt
77 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
79 2011-08-24: Simon Goldschmidt
80 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
82 2011-08-24: Simon Goldschmidt
83 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
84 accept() on UDP connections
86 2011-08-24: Simon Goldschmidt
87 * sockets.h: fixed bug #34057 socklen_t should be a typedef
89 2011-08-24: Simon Goldschmidt
90 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
92 2011-08-24: Simon Goldschmidt
93 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
95 2011-08-24: Simon Goldschmidt
96 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
98 2011-08-22: Simon Goldschmidt
99 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
100 merely prevents nagle from not transmitting fast after closing.)
102 2011-07-22: Simon Goldschmidt
103 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
104 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
105 lwip_send() sends as much as possible for non-blocking sockets
107 2011-07-22: Simon Goldschmidt
108 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
109 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
110 at regular intervals from main level.
112 2011-07-21: Simon Goldschmidt
113 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
114 sending an ARP request when an ARP entry is used in the last minute before
117 2011-07-04: Simon Goldschmidt
118 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
120 2011-06-26: Simon Goldschmidt
121 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
122 updating its documentation only.
124 2011-06-26: Simon Goldschmidt
125 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
128 2011-06-26: Simon Goldschmidt
129 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
137 2011-03-27: Simon Goldschmidt
138 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
139 calculate it in tcp_zero_window_probe (the only place where it was used).
141 2010-11-21: Simon Goldschmidt
142 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
145 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
146 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
147 IP_MULTICAST_LOOP at socket- and raw-API level.
149 2010-06-16: Simon Goldschmidt
150 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
151 link-layer-addressed UDP traffic to be received while a netif is down (just
152 like DHCP during configuration)
154 2010-05-22: Simon Goldschmidt
155 * many many files: bug #27352: removed packing from ip_addr_t, the packed
156 version is now only used in protocol headers. Added global storage for
157 current src/dest IP address while in input functions.
159 2010-05-16: Simon Goldschmidt
160 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
161 calculation (and use them throughout the stack where applicable)
163 2010-05-16: Simon Goldschmidt
164 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
165 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
167 2010-05-16: Simon Goldschmidt
168 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
169 MEMP pool instead of the heap
171 2010-05-13: Simon Goldschmidt
172 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
173 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
174 packets to more than one pcb.
176 2010-05-02: Simon Goldschmidt
177 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
178 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
180 2010-04-30: Simon Goldschmidt
181 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
182 take a precalculated checksum, added pbuf_fill_chksum() to copy data
183 into a pbuf and at the same time calculating the checksum for that data
185 2010-04-29: Simon Goldschmidt
186 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
187 2-byte-aligned IP addresses and MAC addresses
189 2010-04-28: Patch by Bill Auerbach
190 * ip.c: Inline generating IP checksum to save a function call
192 2010-04-14: Simon Goldschmidt
193 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
194 tcpip_thread processes messages or timeouts to implement a watchdog.
196 2010-03-28: Simon Goldschmidt
197 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
198 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
200 2010-03-27: Simon Goldschmidt
201 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
202 etharp_query to prevent unnecessary function calls (inspired by
205 2010-03-20: Simon Goldschmidt
206 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
207 since the linker cannot do this automatically to save space.
209 2010-03-20: Simon Goldschmidt
210 * opt.h, etharp.c/.h: Added support for static ARP table entries
212 2010-03-14: Simon Goldschmidt
213 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
214 when creating TCP segments, not when (re-)transmitting them.
216 2010-03-07: Simon Goldschmidt
217 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
218 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
219 This should speed up receiving data on sockets as the select code in
220 event_callback is only executed when select is waiting.
222 2010-03-06: Simon Goldschmidt
223 * tcp_out.c: task #7013 (Create option to have all packets delivered to
224 netif->output in one piece): Always copy to try to create single pbufs
227 2010-03-06: Simon Goldschmidt
228 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
229 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
230 for tcp netconns to receive pbufs, not netbufs; use that function
233 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
234 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
235 Work on tcp_enqueue: Don't waste memory when chaining segments,
236 added option TCP_OVERSIZE to prevent creating many small pbufs when
237 calling tcp_write with many small blocks of data. Instead, pbufs are
238 allocated larger than needed and the space is used for later calls to
241 2010-02-21: Simon Goldschmidt
242 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
245 2010-02-21: Simon Goldschmidt
246 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
247 implementation of tcp to make API usage cleare to application programmers
249 2010-02-14: Simon Goldschmidt/Stephane Lesage
250 * ip_addr.h: Improved some defines working on ip addresses, added faster
251 macro to copy addresses that cannot be NULL
253 2010-02-13: Simon Goldschmidt
254 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
255 blocking send operation)
257 2010-02-12: Simon Goldschmidt
258 * sockets.c/.h: Added a minimal version of posix fctl() to have a
259 standardised way to set O_NONBLOCK for nonblocking sockets.
261 2010-02-12: Simon Goldschmidt
262 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
263 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
264 and dhcp work with user-allocated structs instead of callin mem_malloc
266 2010-02-12: Simon Goldschmidt/Jeff Barber
267 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
268 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
270 2010-02-12: Simon Goldschmidt
271 * sys layer: task #10139 (Prefer statically allocated memory): converted
272 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
273 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
274 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
275 to let sys.h use binary semaphores instead of mutexes - as before)
277 2010-02-09: Simon Goldschmidt (Simon Kallweit)
278 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
279 (Restart system timeout handling)
281 2010-02-09: Simon Goldschmidt
282 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
283 netif.c) - loopif does not have to be created by the port any more,
284 just define LWIP_HAVE_LOOPIF to 1.
286 2010-02-08: Simon Goldschmidt
287 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
288 inet_ntoa_r/ipaddr_ntoa_r
290 2010-02-08: Simon Goldschmidt
291 * netif.h: Added netif_s/get_igmp_mac_filter() macros
293 2010-02-05: Simon Goldschmidt
294 * netif.h: Added function-like macros to get/set the hostname on a netif
296 2010-02-04: Simon Goldschmidt
297 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
298 make changing the actual implementation behind the typedef easier.
300 2010-02-01: Simon Goldschmidt
301 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
302 for allocating memory when getaddrinfo() is called.
304 2010-01-31: Simon Goldschmidt
305 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
306 them once instead of parsing for every option. This also removes
307 the need for mem_malloc from dhcp_recv and makes it possible to
308 correctly retrieve the BOOTP file.
310 2010-01-30: simon Goldschmidt
311 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
314 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
315 * api.h, api_msg.c, sockets.c: Added except set support in select
318 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
319 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
320 Add non-blocking support for connect (partly from patch #6860),
321 plus many cleanups in socket & netconn API.
323 2010-01-27: Simon Goldschmidt
324 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
325 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
327 2010-01-26: Simon Goldschmidt
328 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
330 2010-01-14: Simon Goldschmidt
331 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
332 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
334 2010-01-13: Simon Goldschmidt
335 * mem.c: The heap now may be moved to user-defined memory by defining
336 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
337 (patch #6966 and bug #26133)
339 2010-01-10: Simon Goldschmidt (Bill Auerbach)
340 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
343 2010-01-10: Simon Goldschmidt
344 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
345 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
347 2009-12-31: Simon Goldschmidt
348 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
349 added timers.c/.h: Separated timer implementation from semaphore/mbox
350 implementation, moved timer implementation to timers.c/.h, timers are
351 now only called from tcpip_thread or by explicitly checking them.
354 2009-12-27: Simon Goldschmidt
355 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
356 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
361 2011-04-20: Simon Goldschmidt
362 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
364 2011-04-13: Simon Goldschmidt
365 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
366 using ports in the IANA private/dynamic range (49152 through 65535).
368 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
369 * etharp.h/.c: Fixed broken VLAN support.
371 2011-03-27: Simon Goldschmidt
372 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
373 pcbs) by checking if the pcb was bound (local_port != 0).
375 2011-03-27: Simon Goldschmidt
376 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
378 2011-03-27: Simon Goldschmidt
379 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
380 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
382 2011-03-27: Simon Goldschmidt
383 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
384 is present never times out) by starting retransmission timer before checking
387 2011-03-22: Simon Goldschmidt
388 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
389 calling sio_read_abort() if the file descriptor is valid.
391 2011-03-14: Simon Goldschmidt
392 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
393 more than once can render a socket useless) since it mainly involves changing
394 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
396 2011-03-13: Simon Goldschmidt
397 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
398 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
399 use EALRADY instead of -1
401 2011-03-13: Simon Goldschmidt
402 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
403 connection has been aborted by err_tcp (since this is not a normal closing
406 2011-03-13: Simon Goldschmidt
407 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
408 with pcb->state != CLOSED
410 2011-02-17: Simon Goldschmidt
411 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
414 2011-02-17: Simon Goldschmidt
415 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
417 2011-01-24: Simon Goldschmidt
418 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
420 2010-12-02: Simon Goldschmidt
421 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
423 2010-11-23: Simon Goldschmidt
424 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
425 LWIP_SO_RCVBUF and ioctl/FIONREAD.
427 2010-11-23: Simon Goldschmidt
428 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
429 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
431 2010-11-23: Simon Goldschmidt
432 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
433 refusing 'refused_data' again.
435 2010-11-22: Simon Goldschmidt
436 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
437 after a successful nonblocking connection.
439 2010-11-22: Simon Goldschmidt
440 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
441 must be sent link-local
443 2010-11-22: Simon Goldschmidt
444 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
447 2010-11-20: Simon Goldschmidt
448 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
450 2010-11-20: Simon Goldschmidt
451 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
452 resemble other stacks.
454 2010-11-20: Simon Goldschmidt
455 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
456 no-copy TCP writes will never succeed.
458 2010-11-20: Simon Goldschmidt
459 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
460 not match documentation: return ERR_ARG instead of ERR_VAL if not
461 initialized or wrong argument.
463 2010-10-20: Simon Goldschmidt
464 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
466 2010-10-05: Simon Goldschmidt
467 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
468 replugging the network cable after an AutoIP address was assigned.
470 2010-08-10: Simon Goldschmidt
471 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
473 2010-08-03: Simon Goldschmidt
474 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
476 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
477 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
478 endian architectures)
480 2010-07-28: Simon Goldschmidt
481 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
484 2010-07-27: Simon Goldschmidt
485 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
486 harm but never did anything
488 2010-07-21: Simon Goldschmidt
489 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
492 2010-07-16: Kieran Mansley
493 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
495 2010-07-10: Simon Goldschmidt
496 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
498 2010-06-30: Simon Goldschmidt
499 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
502 2010-06-28: Kieran Mansley
503 * timers.c remove unportable printing of C function pointers
505 2010-06-24: Simon Goldschmidt
506 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
507 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
509 2010-06-24: Simon Goldschmidt
510 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
511 implemented shutdown at socket level.
513 2010-06-21: Simon Goldschmidt
514 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
515 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
516 custom pbufs that reference other (original) pbufs. Additionally set
517 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
519 2010-06-15: Simon Goldschmidt
520 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
522 2010-06-14: Simon Goldschmidt
523 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
525 2010-06-12: Simon Goldschmidt
526 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
529 2010-05-17: Simon Goldschmidt
530 * netdb.c: Correctly NULL-terminate h_addr_list
532 2010-05-16: Simon Goldschmidt
533 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
534 "symbol already defined" i.e. when linking to winsock
536 2010-05-05: Simon Goldschmidt
537 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
540 2010-04-21: Simon Goldschmidt
541 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
544 2010-03-28: Luca Ceresoli
545 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
547 2010-03-27: Luca Ceresoli
548 * mib2.c: patch #7130: remove meaningless const qualifiers
550 2010-03-26: Simon Goldschmidt
551 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
553 2010-03-26: Simon Goldschmidt
554 * various files: Fixed compiling with different options disabled (TCP/UDP),
555 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
557 2010-03-25: Simon Goldschmidt
558 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
560 2010-03-25: Simon Goldschmidt
561 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
562 overrunning our rcv_wnd in ooseq case.
564 2010-03-22: Simon Goldschmidt
565 * tcp.c: tcp_listen() did not copy the pcb's prio.
567 2010-03-19: Simon Goldschmidt
568 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
570 2010-03-14: Simon Goldschmidt
571 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
572 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
573 and basing PBUF_LINK_HLEN on it.
575 2010-03-08: Simon Goldschmidt
576 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
577 when assiging routable address): when checking incoming packets and
578 aborting existing connection on address change, filter out link-local
581 2010-03-06: Simon Goldschmidt
582 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
584 2010-03-06: Simon Goldschmidt
585 * ipv4/ip.c: Don't try to forward link-local addresses
587 2010-03-06: Simon Goldschmidt
588 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
591 2010-03-05: Simon Goldschmidt
592 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
595 2010-03-05: Simon Goldschmidt
596 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
597 into multiple calls to tcp_write.
599 2010-02-21: Simon Goldschmidt
600 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
601 the implementation of DNS_USES_STATIC_BUF==1)
603 2010-02-20: Simon Goldschmidt
604 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
605 close() vs. shutdown(). Now the application does not get any more
606 recv callbacks after calling tcp_close(). Added tcp_shutdown().
608 2010-02-19: Simon Goldschmidt
609 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
610 confusion with realloc()
612 2010-02-15: Simon Goldschmidt/Stephane Lesage
613 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
616 2010-02-14: Simon Goldschmidt
617 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
618 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
619 admin-status of a netif are up
621 2010-02-14: Simon Goldschmidt
622 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
623 reception and is not really necessary
625 2010-02-14: Simon Goldschmidt
626 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
627 request was directed as us (RFC 826, Packet Reception), otherwise
628 only update existing entries; internalized some functions
630 2010-02-14: Simon Goldschmidt
631 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
632 disabled on netif used for PPPoE) by adding a new netif flag
633 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
634 device but prevents usage of ARP (so that ethernet_input can be used
637 2010-02-12: Simon Goldschmidt
638 * netif.c: netif_set_link_up/down: only do something if the link state
641 2010-02-12: Simon Goldschmidt/Stephane Lesage
642 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
645 2010-02-12: Simon Goldschmidt
646 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
648 2010-02-09: Simon Goldschmidt
649 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
650 (recv() makes receive window update for data that wasn't received by
653 2010-02-09: Simon Goldschmidt/Stephane Lesage
654 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
655 or any netconn_recv() error)
657 2010-02-09: Simon Goldschmidt
658 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
660 2010-02-09: Simon Goldschmidt
661 * netif.c: For loopback packets, adjust the stats- and snmp-counters
662 for the loopback netif.
664 2010-02-08: Simon Goldschmidt
665 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
666 since they are not used anywhere else.
668 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
669 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
670 (patch from bug #28798)
672 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
673 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
674 another bug when LWIP_RAND() returns zero.
676 2010-02-04: Simon Goldschmidt
677 * nearly every file: Use macros defined in ip_addr.h (some of them new)
678 to work with IP addresses (preparation for bug #27352 - Change ip_addr
679 from struct to typedef (u32_t) - and better code).
681 2010-01-31: Simon Goldschmidt
682 * netif.c: Don't call the link-callback from netif_set_up/down() since
683 this invalidly retriggers DHCP.
685 2010-01-29: Simon Goldschmidt
686 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
687 portability file inet.h and its contents from the stack: moved htonX-
688 functions to def.h (and the new def.c - they are not ipv4 dependent),
689 let inet.h depend on ip_addr.h and not the other way round.
690 This fixes bug #28732.
692 2010-01-28: Kieran Mansley
693 * tcp.c: Ensure ssthresh >= 2*MSS
695 2010-01-27: Simon Goldschmidt
696 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
697 callback can lead to accessing unallocated memory. As a consequence,
698 ERR_ABRT means the application has called tcp_abort()!
700 2010-01-25: Simon Goldschmidt
701 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
702 not implemented in SNMP): write-only or not-accessible are still
703 returned by getnext (though not by get)
705 2010-01-24: Simon Goldschmidt
706 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
707 not use reserved C/C++ keywords
709 2010-01-23: Simon Goldschmidt
710 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
713 2010-01-21: Simon Goldschmidt
714 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
715 if tcp_enqueue fails) both in raw- and netconn-API
717 2010-01-19: Simon Goldschmidt
718 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
720 2010-01-18: Iordan Neshev/Simon Goldschmidt
721 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
722 bugfix backports from 2.4.x.
724 2010-01-18: Simon Goldschmidt
725 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
727 2010-01-17: Simon Goldschmidt
728 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
729 task #10102: "netconn: clean up conn->err threading issues" by adding
730 error return value to struct api_msg_msg
732 2010-01-17: Simon Goldschmidt
733 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
734 to return err_t (bugs #27709 and #28087)
736 2010-01-14: Simon Goldschmidt
737 * ...: Use typedef for function prototypes throughout the stack.
739 2010-01-13: Simon Goldschmidt
740 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
741 window = 0) by correctly draining recvmbox/acceptmbox
743 2010-01-11: Simon Goldschmidt
744 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
745 erroneous callbacks) by copying the code from recent pppd
747 2010-01-10: Simon Goldschmidt
748 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
750 2010-01-10: Simon Goldschmidt
751 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
753 2010-01-08: Simon Goldschmidt
754 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
756 2010-01-08: Simon Goldschmidt
757 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
758 passed to dns_local_addhost() might be volatile
760 2010-01-07: Simon Goldschmidt
761 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
763 2010-01-06: Simon Goldschmidt
764 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
766 2009-12-31: Simon Goldschmidt
767 * many ppp files: Reorganised PPP source code from ucip structure to pppd
768 structure to easily compare our code against the pppd code (around v2.3.1)
770 2009-12-27: Simon Goldschmidt
771 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
779 2009-10-27 Simon Goldschmidt/Stephan Lesage
780 * netifapi.c/.h: Added netifapi_netif_set_addr()
782 2009-10-07 Simon Goldschmidt/Fabian Koch
783 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
784 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
786 2009-08-26 Simon Goldschmidt/Simon Kallweit
787 * slipif.c/.h: bug #26397: SLIP polling support
789 2009-08-25 Simon Goldschmidt
790 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
791 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
793 2009-08-25 Simon Goldschmidt
794 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
796 2009-08-24 Jakob Stoklund Olesen
797 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
798 to netif_set_link_up().
800 2009-08-23 Simon Goldschmidt
801 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
802 to a human-readable string.
806 2009-12-24: Kieran Mansley
807 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
810 2009-12-06: Simon Goldschmidt
811 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
812 be statically allocated (like in ucip)
814 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
815 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
817 2009-12-03: Simon Goldschmidt
818 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
819 could have non-zero length
821 2009-12-02: Simon Goldschmidt
822 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
823 tcp_input_pcb until after calling the pcb's callbacks
825 2009-11-29: Simon Goldschmidt
826 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
827 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
829 2009-11-29: Simon Goldschmidt
830 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
831 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
833 2009-11-26: Simon Goldschmidt
834 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
837 2009-11-26: Simon Goldschmidt
838 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
839 algorithm at PCB level
841 2009-11-22: Simon Goldschmidt
842 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
844 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
845 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
846 reusing time-wait pcb
848 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
849 * sockets.c: Fixed bug #28062: Data received directly after accepting
850 does not wake up select
852 2009-11-11: Simon Goldschmidt
853 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
855 2009-10-30: Simon Goldschmidt
856 * opt.h: Increased default value for TCP_MSS to 536, updated default
857 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
859 2009-10-28: Kieran Mansley
860 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
861 to follow algorithm from TCP/IP Illustrated
863 2009-10-27: Kieran Mansley
864 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
866 2009-10-25: Simon Goldschmidt
867 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
868 pcb->recv is NULL to keep rcv_wnd correct)
870 2009-10-25: Simon Goldschmidt
871 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
873 2009-10-23: Simon Goldschmidt (David Empson)
874 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
876 2009-10-21: Simon Goldschmidt
877 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
878 trailing 1 byte len (SYN/FIN)
880 2009-10-21: Simon Goldschmidt
881 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
883 2009-10-19: Simon Goldschmidt
884 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
885 conditional code to assert where applicable), check pbuf length before
886 testing for valid reply
888 2009-10-19: Simon Goldschmidt
889 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
890 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
892 2009-10-16: Simon Goldschmidt
893 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
894 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
897 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
898 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
900 2009-10-15: Simon Goldschmidt
901 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
904 2009-10-15: Simon Goldschmidt
905 * autoip.c: Fixed bug #27704: autoip starts with wrong address
906 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
907 of network byte order
909 2009-10-11 Simon Goldschmidt (Jörg Kesten)
910 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
911 which are not consecutive when retransmitting unacked segments
913 2009-10-09 Simon Goldschmidt
914 * opt.h: Fixed default values of some stats to only be enabled if used
915 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
917 2009-08-30 Simon Goldschmidt
918 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
919 function" by checking for loopback before calling ip_frag
921 2009-08-25 Simon Goldschmidt
922 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
924 2009-08-23 Simon Goldschmidt
925 * ppp.c: bug #27078: Possible memory leak in pppInit()
927 2009-08-23 Simon Goldschmidt
928 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
931 2009-08-23 Simon Goldschmidt
932 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
933 Fixed wrong parenthesis, added check in init.c
935 2009-08-23 Simon Goldschmidt
936 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
938 2009-08-23 Simon Goldschmidt
939 * many ppp files: bug #27267: Added include to string.h where needed
941 2009-08-23 Simon Goldschmidt
942 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
949 2009-05-10 Simon Goldschmidt
950 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
951 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
952 one pbuf to help MACs that don't support scatter-gather DMA.
954 2009-05-09 Simon Goldschmidt
955 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
956 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
958 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
959 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
960 extended info about the currently received packet.
962 2009-04-27 Simon Goldschmidt
963 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
965 2009-04-25 Simon Goldschmidt
966 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
967 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
969 2009-04-21 Simon Goldschmidt
970 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
971 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
972 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
973 as an external function for lookup.
975 2009-04-15 Simon Goldschmidt
976 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
978 2009-03-31 Kieran Mansley
979 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
980 TCP timestamp options, off by default. Rework tcp_enqueue() to
981 take option flags rather than specified option data
983 2009-02-18 Simon Goldschmidt
984 * cc.h: Added printf formatter for size_t: SZT_F
986 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
987 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
990 2009-02-12 Simon Goldschmidt
991 * init.h: Added LWIP_VERSION to get the current version of the stack
993 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
994 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
995 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
998 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
999 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1000 is only used by UDPLITE at present, so conditionalise it.
1002 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1003 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1004 "seed" address. This should reduce AUTOIP conflicts if
1005 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1007 2008-10-02 Jonathan Larmour and Rishi Khan
1008 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1011 2008-06-30 Simon Goldschmidt
1012 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1013 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1014 mem_free to run between mem_malloc iterations. Added illegal counter for
1017 2008-06-27 Simon Goldschmidt
1018 * stats.h/.c, some other files: patch #6483: stats module improvement:
1019 Added defines to display each module's statistic individually, added stats
1020 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1022 2008-06-17 Simon Goldschmidt
1023 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1024 (define LWIP_ERR_T in cc.h)
1026 2008-06-17 Simon Goldschmidt
1027 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1030 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1031 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1032 modified version of patch # 6370: Moved loopif code to netif.c so that
1033 loopback traffic is supported on all netifs (all local IPs).
1034 Added option to limit loopback packets for each netifs.
1038 2009-08-12 Kieran Mansley
1039 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1040 out of window or out of order properly
1042 2009-08-12 Kieran Mansley
1043 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1045 2009-07-28 Simon Goldschmidt
1046 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1048 2009-07-27 Kieran Mansley
1049 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1051 2009-07-09 Kieran Mansley
1052 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1053 recv_avail and don't increment counters until message successfully
1056 2009-06-25 Kieran Mansley
1057 * api_msg.c api.h: BUG26722: initialise netconn write variables
1060 2009-06-25 Kieran Mansley
1061 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1063 2009-06-25 Kieran Mansley
1064 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1065 simultaneous close behaviour, and make snd_nxt have the same meaning
1068 2009-05-12 Simon Goldschmidt
1069 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1070 arp_table / uses etharp_query" by adding etharp_gratuitous()
1072 2009-05-12 Simon Goldschmidt
1073 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1074 to the IP header (used by igmp_ip_output_if)
1076 2009-05-06 Simon Goldschmidt
1077 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1078 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1080 2009-05-05 Simon Goldschmidt
1081 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1084 2009-05-04 Simon Goldschmidt
1085 * init.c: snmp was not initialized in lwip_init()
1087 2009-05-04 Frédéric Bernon
1088 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1090 2009-05-03 Simon Goldschmidt
1091 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1092 (and unsent->next == NULL)
1094 2009-05-02 Simon Goldschmidt
1095 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1096 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1098 2009-05-02 Simon Goldschmidt
1099 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1101 2009-05-01 Simon Goldschmidt
1102 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1104 2009-05-01 Simon Goldschmidt
1105 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1107 2009-04-29 Frédéric Bernon
1108 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1109 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1110 of broadcast packets even when this option wasn't set. Port maintainers
1111 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1112 If you want this option also filter broadcast on recv operations, you also
1113 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1115 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1116 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1117 DHCP/AUTOIP cooperation
1119 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1120 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1121 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1122 right place in tcp_output and tcp_rexmit).
1124 2009-04-25 Simon Goldschmidt
1125 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1126 when debugging": memp_sizes contained the wrong sizes (including sanity
1127 regions); memp pools for MEM_USE_POOLS were too small
1129 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1130 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1131 behavior, with with ip address string not ended by a '\0', a space or a
1134 2009-04-19 Simon Goldschmidt
1135 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1136 pcb->err is called, not pcb->connected (with an error code).
1138 2009-04-19 Simon Goldschmidt
1139 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1140 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1142 2009-04-19 Simon Goldschmidt
1143 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1144 in the header pbuf, not the data pbuf)
1146 2009-04-18 Simon Goldschmidt
1147 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1149 2009-04-15 Simon Goldschmidt
1150 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1152 2009-04-15 Simon Goldschmidt
1153 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1155 2009-04-15 Simon Goldschmidt
1156 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1157 ip_hinted_output() (for smaller code mainly)
1159 2009-04-15 Simon Goldschmidt
1160 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1162 2009-04-15 Simon Goldschmidt
1163 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1164 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1165 is big enough in dhcp_start
1167 2009-04-15 Simon Goldschmidt
1168 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1170 2009-04-15 Simon Goldschmidt
1171 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1173 2009-04-15 Simon Goldschmidt
1174 * sockets.c: bug #26121: set_errno can be overridden
1176 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1177 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1180 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1181 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1184 2009-03-31 Kieran Mansley
1185 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1186 updates are calculated and sent (BUG20515)
1188 * tcp_in.c: cope with SYN packets received during established states,
1189 and retransmission of initial SYN.
1191 * tcp_out.c: set push bit correctly when tcp segments are merged
1193 2009-03-27 Kieran Mansley
1194 * tcp_out.c set window correctly on probes (correcting change made
1197 2009-03-26 Kieran Mansley
1198 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1199 connections where no reset required (bug #25622)
1201 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1204 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1205 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1206 too small depending on MEM_ALIGNMENT
1208 2009-02-16 Simon Goldschmidt
1209 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1210 converted size argument of netconn_write to 'size_t'
1212 2009-02-16 Simon Goldschmidt
1213 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1214 by moving accept callback function pointer to TCP_PCB_COMMON
1216 2009-02-12 Simon Goldschmidt
1217 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1220 2009-02-11 Simon Goldschmidt
1221 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1223 2009-02-11 Simon Goldschmidt
1224 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1225 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1227 2009-02-10 Simon Goldschmidt
1228 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1229 Accepts_pending is decrease on a corresponding listen pcb when a connection
1230 in state SYN_RCVD is close.
1232 2009-01-28 Jonathan Larmour
1233 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1236 2008-12-19 Simon Goldschmidt
1237 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1239 2008-12-10 Tamas Somogyi, Frédéric Bernon
1240 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1241 port uses deleted netbuf.
1243 2008-10-18 Simon Goldschmidt
1244 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1247 2008-10-15 Simon Goldschmidt
1248 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1249 by packing the struct ip_reass_helper.
1251 2008-10-03 David Woodhouse, Jonathan Larmour
1252 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1254 2008-10-02 Jonathan Larmour
1255 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1256 padding is included.
1258 2008-09-30 Jonathan Larmour
1259 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1260 assertion check that addrlen isn't NULL.
1262 2008-09-30 Jonathan Larmour
1263 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1265 2008-08-26 Simon Goldschmidt
1266 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1267 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1269 2008-08-14 Simon Goldschmidt
1270 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1271 tcp_close returns != ERR_OK)
1273 2008-07-08 Frédéric Bernon
1274 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1275 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1277 2008-06-24 Jonathan Larmour
1278 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1279 if tcp_seg_copy fails.
1281 2008-06-17 Simon Goldschmidt
1282 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1283 and created defines for swapping bytes and folding u32 to u16.
1285 2008-05-30 Kieran Mansley
1286 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1287 rather than rcv_ann_wnd when deciding if packets are in-window.
1288 Contributed by <arasmussen@consultant.datasys.swri.edu>
1290 2008-05-30 Kieran Mansley
1291 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1292 passing as function pointers when MEM_LIBC_MALLOC is defined.
1294 2008-05-09 Jonathan Larmour
1295 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1296 stop it being treated as a fatal error.
1298 2008-04-15 Simon Goldschmidt
1299 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1302 2008-03-27 Simon Goldschmidt
1303 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1304 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1305 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1306 or heap memory from interrupt context
1308 2008-03-26 Simon Goldschmidt
1309 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1310 host sent a zero mss as TCP option.
1317 2008-03-10 Jonathan Larmour
1318 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1319 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1321 2008-01-22 Frédéric Bernon
1322 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1323 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1325 2008-01-14 Frédéric Bernon
1326 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1327 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1328 tcp_recv callback (see rawapi.txt).
1330 2008-01-14 Frédéric Bernon, Marc Chaland
1331 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1333 2008-01-12 Frédéric Bernon
1334 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1335 netconn::sem per netconn::op_completed like suggested for the task #7490
1336 "Add return value to sys_mbox_post".
1338 2008-01-12 Frédéric Bernon
1339 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1340 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1341 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1343 2008-01-10 Frédéric Bernon
1344 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1345 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1346 "blocking" ("block" parameter = 1).
1348 2008-01-10 Frédéric Bernon
1349 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1350 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1351 "Add return value to sys_mbox_post".
1353 2008-01-05 Frédéric Bernon
1354 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1355 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1356 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1357 indicate the number of pointers query by the mailbox. There is three defines
1358 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1359 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1360 parameter in your implementation, but to ignore it to keep the previous behavior.
1361 The new sys_mbox_trypost function return a value to know if the mailbox is
1362 full or if the message is posted. Take a look to sys_arch.txt for more details.
1363 This new function is used in tcpip_input (so, can be called in an interrupt
1364 context since the function is not blocking), and in recv_udp and recv_raw.
1366 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1367 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1368 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1369 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1370 documentation in the rawapi.txt file.
1372 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1373 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1375 2007-12-31 Frédéric Bernon, Luca Ceresoli
1376 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1377 in autoip". The change in etharp_raw could be removed, since all calls to
1378 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1379 wrong in the future.
1381 2007-12-30 Frédéric Bernon, Tom Evans
1382 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1383 Filtering" reported by Tom Evans.
1385 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1386 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1387 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1388 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1389 keep accepting new connections.
1391 2007-12-13 Frédéric Bernon
1392 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1393 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1395 2007-12-12 Frédéric Bernon
1396 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1397 are the one which have ram usage.
1399 2007-12-05 Frédéric Bernon
1400 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1401 set of variables (=0) or a local one (=1). In this last case, your port should
1402 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1403 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1405 2007-12-03 Simon Goldschmidt
1406 * ip.c: ip_input: check if a packet is for inp first before checking all other
1407 netifs on netif_list (speeds up packet receiving in most cases)
1409 2007-11-30 Simon Goldschmidt
1410 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1411 UDP: move a (connected) pcb selected for input to the front of the list of
1412 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1415 2007-11-28 Simon Goldschmidt
1416 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1418 2007-11-25 Simon Goldschmidt
1419 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1422 2007-11-24 Simon Goldschmidt
1423 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1424 to the new file netdb.c; included lwip_getaddrinfo.
1426 2007-11-21 Simon Goldschmidt
1427 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1428 based on the MTU of the netif used to send. Enabled by default. Disable by
1429 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1431 2007-11-19 Frédéric Bernon
1432 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1433 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1434 copy dns payload to parse the response), return an error if there is no place
1435 for a new query, and fix some minor problems.
1437 2007-11-16 Simon Goldschmidt
1438 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1439 removed files: core/inet.c, core/inet6.c
1440 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1441 inet and chksum part; changed includes in all lwIP files as appropriate
1443 2007-11-16 Simon Goldschmidt
1444 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1445 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1446 (gethostbyname/gethostbyname_r).
1448 2007-11-15 Jim Pettinato, Frédéric Bernon
1449 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1450 requests with RAW api interface. Initialization is done in lwip_init() with
1451 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1452 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1453 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1454 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1455 list with points to improve.
1457 2007-11-06 Simon Goldschmidt
1458 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1459 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1460 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1462 2007-11-06 Simon Goldschmidt
1463 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1464 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1465 implementation from netconn api applications.
1467 2007-11-03 Frédéric Bernon
1468 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1469 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1470 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1471 it. This is a first release which have to be improve for TCP. Note it used the
1472 netconn::recv_avail which need to be more "thread-safe" (note there is already
1473 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1475 2007-11-01 Frédéric Bernon, Marc Chaland
1476 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1477 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1478 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1479 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1480 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1482 2007-10-24 Frédéric Bernon
1483 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1484 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1485 some code (like we have talk in "patch #5919 : Create compile switch to remove
1486 select code"), but it could be done later.
1488 2007-10-08 Simon Goldschmidt
1489 * many files: Changed initialization: many init functions are not needed any
1490 more since we now rely on the compiler initializing global and static
1493 2007-10-06 Simon Goldschmidt
1494 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1495 to enqueue the received pbufs so that multiple packets can be reassembled
1496 simultaneously and no static reassembly buffer is needed.
1498 2007-10-05 Simon Goldschmidt
1499 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1500 all netifs (or ports) can use it.
1502 2007-10-05 Frédéric Bernon
1503 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1504 common function to reduce a little bit the footprint (for all functions using
1505 only the "netif" parameter).
1507 2007-10-03 Frédéric Bernon
1508 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1509 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1510 a little bit the footprint (for all functions using only the "netif" parameter).
1512 2007-09-15 Frédéric Bernon
1513 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1514 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1515 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1516 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1518 2007-09-10 Frédéric Bernon
1519 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1520 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1521 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1522 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1523 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1524 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1525 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1526 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1527 when it's queried (any direct call to "sysuptime" is changed by a call to
1528 snmp_get_sysuptime).
1530 2007-09-09 Frédéric Bernon, Bill Florac
1531 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1532 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1533 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1534 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1535 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1536 the next query message to receive the matching multicast streams).
1538 2007-09-08 Frédéric Bernon
1539 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1540 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1541 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1542 Enable to access to these fields with LWIP_TCP=0.
1544 2007-09-05 Frédéric Bernon
1545 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1546 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1547 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1548 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1549 help to reduce footprint, and to reduce "visibility" on the Internet.
1551 2007-09-05 Frédéric Bernon, Bill Florac
1552 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1553 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1554 parameters have to be provided: a task name, and a task stack size. For this
1555 one, since it's platform dependant, you could define the best one for you in
1556 your lwipopts.h. For port maintainers, you can just add these new parameters
1557 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1560 2007-09-05 Frédéric Bernon
1561 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1562 inside init.c for task #7142 "Sanity check user-configurable values".
1564 2007-09-04 Frédéric Bernon, Bill Florac
1565 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1566 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1567 value). It will avoid potential fragmentation problems, use a counter to know
1568 how many times a group is used on an netif, and free it when all applications
1569 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1570 check if LWIP_IGMP!=0).
1572 2007-09-03 Frédéric Bernon
1573 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1574 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1575 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1576 and/or the "interface" field (for netconn layer), for join/leave operations.
1577 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1578 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1580 2007-08-30 Frédéric Bernon
1581 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1582 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1583 with other API (application based on raw API, or future "socket2" API). Ports
1584 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1586 2007-08-30 Frédéric Bernon, Jonathan Larmour
1587 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1588 user-configurable values".
1590 2007-08-29 Frédéric Bernon
1591 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1592 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1593 spirit than the others modules. Modify some IGMP debug traces.
1595 2007-08-29 Frédéric Bernon
1596 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1597 Add lwip_init function to regroup all modules initializations, and to provide
1598 a place to add code for task #7142 "Sanity check user-configurable values".
1599 Ports maintainers should remove direct initializations calls from their code,
1600 and add init.c in their makefiles. Note that lwip_init() function is called
1601 inside tcpip_init, but can also be used by raw api users since all calls are
1602 disabled when matching options are disabled. Also note that their is new options
1603 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1605 2007-08-26 Marc Boucher
1606 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1607 since they can under certain circumstances be called with an invalid conn
1608 pointer after the connection has been closed (and conn has been freed).
1610 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1611 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1612 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1614 2007-08-22 Frédéric Bernon
1615 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1616 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1618 2007-08-22 Frédéric Bernon
1619 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1620 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1621 name is tcpip_input (we keep the name of 1.2.0 function).
1623 2007-08-17 Jared Grubb
1624 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1625 settings into new memp_std.h and optional user file lwippools.h. This adds
1626 more dynamic mempools, and allows the user to create an arbitrary number of
1627 mempools for mem_malloc.
1629 2007-08-16 Marc Boucher
1630 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1631 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1632 close the connection.
1634 2007-08-16 Marc Boucher
1635 * sockets.c: lwip_accept(): check netconn_peer() error return.
1637 2007-08-16 Marc Boucher
1638 * mem.c, mem.h: Added mem_calloc().
1640 2007-08-16 Marc Boucher
1641 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1642 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1643 and starving other message types.
1644 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1646 2007-08-16 Marc Boucher
1647 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1648 type and flgs (later renamed to flags).
1649 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1650 Improved lwip_recvfrom(). TCP push now propagated.
1652 2007-08-16 Marc Boucher
1653 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1656 2007-08-16 Marc Boucher
1657 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1658 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1659 Added PPPoE support and various PPP improvements.
1661 2007-07-25 Simon Goldschmidt
1662 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1663 making netbuf_copy_partial use this function.
1665 2007-07-25 Simon Goldschmidt
1666 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1667 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1670 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1671 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1672 a link callback in the netif struct, and functions to handle it. Be carefull
1673 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1674 if you want to be sure to be compatible with future changes...
1676 2007-06-30 Frédéric Bernon
1677 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1679 2007-06-21 Simon Goldschmidt
1680 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1681 LWIP_AUTOIP =0 and =1 to remove redundant code.
1683 2007-06-21 Simon Goldschmidt
1684 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1685 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1686 heap. This both prevents memory fragmentation and gives a higher speed
1687 at the cost of more memory consumption. Turned off by default.
1689 2007-06-21 Simon Goldschmidt
1690 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1691 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1692 int to be able to send a bigger buffer than 64K with one time (mainly
1693 used from lwip_send).
1695 2007-06-21 Simon Goldschmidt
1696 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1697 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1699 2007-06-21 Simon Goldschmidt
1700 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1701 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1702 changes on low memory or empty send-buffer.
1704 2007-06-18 Simon Goldschmidt
1705 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1706 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1707 used for ethernet and struct eth_addr already had a defined length of 6).
1709 2007-06-17 Simon Goldschmidt
1710 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1711 to disable UDP checksum generation on transmit.
1713 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1714 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1715 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1716 this macro to check "conn" parameter in api_msg.c functions.
1718 2007-06-11 Simon Goldschmidt
1719 * sockets.c, sockets.h: Added UDP lite support for sockets
1721 2007-06-10 Simon Goldschmidt
1722 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1723 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1726 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1727 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1728 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1729 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1730 (see TODO mark in the source code).
1732 2007-06-09 Simon Goldschmidt
1733 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1734 etharp_output() to match netif->output so etharp_output() can be used
1735 directly as netif->output to save one function call.
1737 2007-06-08 Simon Goldschmidt
1738 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1739 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1740 added initialization of those to ethernetif, slipif and loopif.
1742 2007-05-18 Simon Goldschmidt
1743 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1744 (defaulting to off for now) that can be set to 0 to send fragmented
1745 packets by passing PBUF_REFs down the stack.
1747 2007-05-23 Frédéric Bernon
1748 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1749 connections, such present in patch #5959.
1751 2007-05-23 Frédéric Bernon
1752 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1753 code in only one part...
1755 2007-05-18 Simon Goldschmidt
1756 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1757 elements to overflow. This is achieved by adding some bytes before and after
1758 each pool element (increasing their size, of course), filling them with a
1759 prominent value and checking them on freeing the element.
1760 Set it to 2 to also check every element in every pool each time memp_malloc()
1761 or memp_free() is called (slower but more helpful).
1763 2007-05-10 Simon Goldschmidt
1764 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1765 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1768 2007-05-11 Frédéric Bernon
1769 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1770 Include a function pointer instead of a table index in the message to reduce
1771 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1772 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1774 2007-05-10 Simon Goldschmidt
1775 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1776 \ extern "C" {' in all header files. Now you can write your application using
1777 the lwIP stack in C++ and simply #include the core files. Note I have left
1778 out the netif/ppp/*h header files for now, since I don't know which files are
1779 included by applications and which are for internal use only.
1781 2007-05-09 Simon Goldschmidt
1782 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1783 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1784 situations where some compilers might inline the copy and save a function
1785 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1787 2007-05-08 Simon Goldschmidt
1788 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1789 to be overriden in case the C-library malloc implementation is not protected
1790 against concurrent access.
1792 2007-05-04 Simon Goldschmidt (Atte Kojo)
1793 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1794 multiple packets to the same host.
1796 2007-05-04 Frédéric Bernon, Jonathan Larmour
1797 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1798 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1799 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1800 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1801 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1802 these fields are now renamed "addr" & "port".
1804 2007-04-11 Jonathan Larmour
1805 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1806 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1807 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1808 by the port in sys_arch.h if desired.
1810 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1811 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1812 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1813 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1815 2007-04-05 Frédéric Bernon
1816 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1818 2007-04-04 Simon Goldschmidt
1819 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1820 use this for and architecture-independent form to tell the compiler you intentionally
1821 are not using this variable. Can be overriden in cc.h.
1823 2007-03-28 Frédéric Bernon
1824 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1825 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1826 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1827 It will be used by DHCP to register a client hostname, but can also be use when you call
1830 2007-03-28 Frédéric Bernon
1831 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1832 initialize a network interface's flag with. It tell this interface is an ethernet
1833 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1834 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1836 2007-03-26 Frédéric Bernon, Jonathan Larmour
1837 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1838 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1839 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1840 is done in tcpip_init function.
1842 2007-03-22 Frédéric Bernon
1843 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1844 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1845 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1846 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1847 but never used. Fix msg_in.c with the correct #if test for a stat display.
1849 2007-03-21 Kieran Mansley
1850 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1851 Provides callback on netif up/down state change.
1853 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1854 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1855 ip.c, netif.h, tcpip.c, opt.h:
1856 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1857 filter per all network interfaces. Declare a new function in netif to enable to
1858 control the MAC filter (to reduce lwIP traffic processing).
1860 2007-03-11 Frédéric Bernon
1861 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1862 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1863 unless you know what you're doing (default are RFC1122 compliant). Note
1864 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1866 2007-03-08 Frédéric Bernon
1867 * tcp.h: Keepalive values can be configured at compile time, but don't change
1868 this unless you know what you're doing (default are RFC1122 compliant).
1870 2007-03-08 Frédéric Bernon
1871 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1872 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1873 on UDP sockets/netconn.
1875 2007-03-08 Simon Goldschmidt
1876 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1878 2007-03-06 Frédéric Bernon
1879 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1880 Implement SO_RCVTIMEO on UDP sockets/netconn.
1882 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1883 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1884 on the stack and remove the API msg type from memp
1886 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1887 * sockets.h, sockets.c: Move socket initialization to new
1888 lwip_socket_init() function.
1889 NOTE: this changes the API with ports. Ports will have to be
1890 updated to call lwip_socket_init() now.
1892 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1893 * api_lib.c: Use memcpy in netbuf_copy_partial.
1898 2008-03-17 Frédéric Bernon, Ed Kerekes
1899 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1900 some problems to fill the IP header on some targets, use now the
1901 ip.h macros to do it).
1903 2008-03-13 Frédéric Bernon
1904 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1905 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1906 TCP connection caused a crash. Note that using (lwip_)recvfrom
1907 like this is a bit slow and that using (lwip)getpeername is the
1908 good lwip way to do it (so, using recv is faster on tcp sockets).
1910 2008-03-12 Frédéric Bernon, Jonathan Larmour
1911 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1912 recv_raw() does not consume data", and the ping sample (with
1913 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1914 returned the IP payload, without the IP header).
1916 2008-03-04 Jonathan Larmour
1917 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1918 and/or warnings on some systems where mem_size_t and size_t differ.
1919 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1921 2008-03-04 Kieran Mansley (contributions by others)
1922 * Numerous small compiler error/warning fixes from contributions to
1923 mailing list after 1.3.0 release candidate made.
1925 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1926 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1928 2008-01-15 Kieran Mansley
1929 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1930 prevented from sending by a small send window, not just a zero
1933 2008-01-09 Jonathan Larmour
1934 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1935 conflict with Linux system headers.
1937 2008-01-06 Jonathan Larmour
1938 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1939 address entirely on receiving a DHCPNAK, and restarting discovery.
1941 2007-12-21 Simon Goldschmidt
1942 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1943 is not protected" by using new macros for interlocked access to modify/test
1944 netconn->recv_avail.
1946 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1947 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1949 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1950 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1951 of silly window avoidance and prevent lwIP from shrinking the window)
1953 2007-12-04 Simon Goldschmidt
1954 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1955 data packet was lost): add assert that all segment lists are empty in
1956 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1957 state from LAST_ACK in tcp_process
1959 2007-12-02 Simon Goldschmidt
1960 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1961 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1962 has to be set to 0 in lwipopts.h
1964 2007-12-02 Simon Goldschmidt
1965 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1966 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1967 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1968 This is a fix for thread-safety and allocates all items needed for a netconn
1969 when the netconn is created.
1971 2007-11-30 Simon Goldschmidt
1972 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1973 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1974 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1975 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1977 2007-11-27 Simon Goldschmidt
1978 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1979 letting ip_route only use netifs that are up.
1981 2007-11-27 Simon Goldschmidt
1982 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1983 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1984 sockets block most operations once they have seen a fatal error.
1986 2007-11-27 Simon Goldschmidt
1987 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1988 netif to send as an argument (to be able to send on netifs that are down).
1990 2007-11-26 Simon Goldschmidt
1991 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1994 2007-11-21 Simon Goldschmidt
1995 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1996 Fixed the nagle algorithm; nagle now also works for all raw API applications
1997 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1999 2007-11-12 Frédéric Bernon
2000 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2001 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2002 context in do_getaddr.
2004 2007-11-10 Simon Goldschmidt
2005 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2006 happen any time). Now the packet simply isn't enqueued when out of memory.
2008 2007-11-01 Simon Goldschmidt
2009 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2010 TCP_MSS if that is smaller) as long as no MSS option is received from the
2013 2007-11-01 Simon Goldschmidt
2014 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2015 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2016 sending our configured TCP_MSS instead of the one received).
2018 2007-11-01 Simon Goldschmidt
2019 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2020 calculated based on the configured TCP_MSS, not on the MSS option received
2023 2007-10-09 Simon Goldschmidt
2024 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2025 short and also was generated wrong if checksum coverage != tot_len;
2026 receive: checksum was calculated wrong if checksum coverage != tot_len
2028 2007-10-08 Simon Goldschmidt
2029 * mem.c: lfree was not updated in mem_realloc!
2031 2007-10-07 Frédéric Bernon
2032 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2033 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2034 this change cause an API breakage for netconn_addr, since a parameter
2035 type change. Any compiler should cause an error without any changes in
2036 yours netconn_peer calls (so, it can't be a "silent change"). It also
2037 reduce a little bit the footprint for socket layer (lwip_getpeername &
2038 lwip_getsockname use now a common lwip_getaddrname function since
2039 netconn_peer & netconn_addr have the same parameters).
2041 2007-09-20 Simon Goldschmidt
2042 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2043 by checking tcp_tw_pcbs also
2045 2007-09-19 Simon Goldschmidt
2046 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2048 2007-09-15 Mike Kleshov
2049 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2051 2007-09-06 Frédéric Bernon
2052 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2053 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2054 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2055 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2057 2007-08-30 Frédéric Bernon
2058 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2059 and fix some coding style.
2061 2007-08-28 Frédéric Bernon
2062 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2063 kind of packets. These packets are considered like Ethernet packets (payload
2064 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2065 are considered like IP packets (payload pointing to iphdr).
2067 2007-08-27 Frédéric Bernon
2068 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2069 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2070 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2072 2007-08-24 Kieran Mansley
2073 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2074 compiler (Paradigm C++)
2076 2007-08-09 Frédéric Bernon, Bill Florac
2077 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2078 Introduce IGMP_STATS to centralize statistics management.
2080 2007-08-09 Frédéric Bernon, Bill Florac
2081 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2082 packet on a udp pcb binded on an netif's IP address, and not on "any".
2084 2007-08-09 Frédéric Bernon, Bill Florac
2085 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2086 This is mainly on using lookup/lookfor, and some coding styles...
2088 2007-07-26 Frédéric Bernon (and "thedoctor")
2089 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2091 2007-07-25 Simon Goldschmidt
2092 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2093 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2094 (tcp_output is called again later from tcp timers).
2096 2007-07-25 Simon Goldschmidt
2097 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2098 copy_from_pbuf, which illegally modified the given pbuf.
2100 2007-07-25 Simon Goldschmidt
2101 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2102 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2104 2007-07-24 Simon Goldschmidt
2105 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2106 correct state (must be CLOSED).
2108 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2109 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2110 allocation. It now returns NULL.
2112 2007-07-13 Frédéric Bernon
2113 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2116 2007-07-13 Frédéric Bernon
2117 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2118 because current code doesn't follow rawapi.txt documentation.
2120 2007-07-13 Kieran Mansley
2121 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2122 out of sequence processing of received packets
2124 2007-07-03 Simon Goldschmidt
2125 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2126 assumption is made that this pbuf is in one piece (i.e. not chained). These
2127 assumptions clash with the possibility of converting to fully pool-based
2128 pbuf implementations, where PBUF_RAM pbufs might be chained.
2130 2007-07-03 Simon Goldschmidt
2131 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2132 when closing tcp netconns: removed conn->sem, less context switches when
2133 closing, both netconn_close and netconn_delete should safely close tcp
2136 2007-07-02 Simon Goldschmidt
2137 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2138 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2139 to cache ARP table indices with each pcb instead of single-entry cache for
2142 2007-07-02 Simon Goldschmidt
2143 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2144 warnings when assigning to smaller types.
2146 2007-06-28 Simon Goldschmidt
2147 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2149 2007-06-28 Simon Goldschmidt
2150 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2151 a segment contained chained pbufs)
2153 2007-06-28 Frédéric Bernon
2154 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2155 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2156 possible to define this macro in your own lwipopts.h to always use C library's
2157 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2159 2007-06-28 Frédéric Bernon
2160 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2161 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2162 in api_lib/api_msg (use pointers and not type with table, etc...)
2164 2007-06-26 Simon Goldschmidt
2165 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2167 2007-06-25 Simon Goldschmidt
2168 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2169 for udp packets with no matching pcb.
2171 2007-06-25 Simon Goldschmidt
2172 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2173 could get udp input packets if the remote side matched.
2175 2007-06-13 Simon Goldschmidt
2176 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2177 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2179 2007-06-13 Simon Goldschmidt
2180 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2181 -> netconn_new_..() does not allocate a new connection for unsupported
2184 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2185 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2186 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2188 2007-06-13 Frédéric Bernon, Matthias Weisser
2189 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2190 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2191 some macro names collision with some OS macros.
2193 2007-06-11 Simon Goldschmidt
2194 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2195 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2196 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2199 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2200 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2201 where TCP flags wasn't initialized in tcp_keepalive.
2203 2007-06-03 Simon Goldschmidt
2204 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2205 registered, p->payload was modified without modifying p->len if sending
2206 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2208 2007-06-03 Simon Goldschmidt
2209 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2210 re-used the input pbuf even if that didn't have enough space to include the
2211 link headers. Now the space is tested and a new pbuf is allocated for the
2212 echo response packet if the echo request pbuf isn't big enough.
2214 2007-06-01 Simon Goldschmidt
2215 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2217 2007-05-23 Frédéric Bernon
2218 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2219 allocated by do_listen if success) and netconn_accept errors handling. In
2220 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2221 by ASSERT, except for netconn_delete.
2223 2007-05-23 Frédéric Bernon
2224 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2225 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2226 directly close the recvmbox).
2228 2007-05-22 Simon Goldschmidt
2229 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2230 bound but unconnected (and non-listening) tcp_pcbs.
2232 2007-05-22 Frédéric Bernon
2233 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2234 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2235 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2236 like "sys_timeout" in their application threads.
2238 2007-05-22 Frédéric Bernon
2239 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2240 which parameters are used by which do_xxx function, and to avoid "misusing"
2241 parameters (patch #5938).
2243 2007-05-22 Simon Goldschmidt
2244 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2245 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2246 is only 8 bits wide. This affects the api, as there, the protocol was
2249 2007-05-18 Simon Goldschmidt
2250 * memp.c: addition to patch #5913: smaller pointer was returned but
2251 memp_memory was the same size -> did not save memory.
2253 2007-05-16 Simon Goldschmidt
2254 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2257 2007-05-16 Simon Goldschmidt
2258 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2259 as the one of the netif used for sending to prevent sending from old
2260 addresses after a netif address gets changed (partly fixes bug #3168).
2262 2007-05-16 Frédéric Bernon
2263 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2264 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2265 tcpip_init) because we have to be sure that network interfaces are already
2266 added (mac filter is updated only in igmp_init for the moment).
2268 2007-05-16 Simon Goldschmidt
2269 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2270 into sys_arch_sem_wait calls to prevent timers from running while waiting
2271 for the heap. This fixes bug #19167.
2273 2007-05-13 Simon Goldschmidt
2274 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2275 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2278 2007-05-07 Simon Goldschmidt
2279 * mem.c: Another attempt to fix bug #17922.
2281 2007-05-04 Simon Goldschmidt
2282 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2283 implementation so that it can be reused (don't allocate the target
2284 pbuf inside pbuf_copy()).
2286 2007-05-04 Simon Goldschmidt
2287 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2288 to save a little RAM (next pointer of memp is not used while not in pool).
2291 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2294 2007-04-23 Simon Goldschmidt
2295 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2296 in NULL reference for incoming TCP packets". Loopif has to be configured
2297 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2298 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2299 putting packets on a list that is fed to the stack by calling loopif_poll()
2300 (single-thread / NO_SYS / polling environment where e.g.
2301 netif->input() = ip_input).
2303 2007-04-17 Jonathan Larmour
2304 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2305 the difference between two u16_t's.
2306 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2307 MEMP_NUM_NETCONN in sockets.c right now.
2309 2007-04-12 Jonathan Larmour
2310 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2312 2007-04-12 Kieran Mansley
2313 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2314 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2316 2007-04-11 Simon Goldschmidt
2317 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2318 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2319 pbuf.c: removed functions no needed any more (by etharp).
2321 2007-04-11 Kieran Mansley
2322 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2323 "Constant is long" warnings with 16bit compilers. Contributed by
2324 avatar@mmlab.cse.yzu.edu.tw
2326 2007-04-05 Frédéric Bernon, Jonathan Larmour
2327 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2328 the mailbox is active". Now, the post is only done during a connect, and do_send,
2329 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2331 2007-04-03 Frédéric Bernon
2332 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2333 packets. See patch #5834.
2335 2007-03-30 Frédéric Bernon
2336 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2337 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2339 2007-03-30 Frédéric Bernon
2340 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2341 others environment defines (these were too "generic").
2343 2007-03-28 Frédéric Bernon
2344 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2345 result and can cause a crash. lwip_send now check netbuf_ref result.
2347 2007-03-28 Simon Goldschmidt
2348 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2349 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2350 defined. This is the way it should have been already (looking at
2353 2007-03-28 Kieran Mansley
2354 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2355 IP and TCP headers *and* physical link headers
2357 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2358 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2359 to send some garbage. It is not a definitive solution, but the patch does solve
2360 the problem for most cases.
2362 2007-03-22 Frédéric Bernon
2363 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2365 2007-03-22 Frédéric Bernon
2366 * api_lib.c: somes resources couldn't be freed if there was errors during
2367 netconn_new_with_proto_and_callback.
2369 2007-03-22 Frédéric Bernon
2370 * ethernetif.c: update netif->input calls to check return value. In older ports,
2371 it's a good idea to upgrade them, even if before, there could be another problem
2372 (access to an uninitialized mailbox).
2374 2007-03-21 Simon Goldschmidt
2375 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2376 by casting to unsigned).
2378 2007-03-21 Frédéric Bernon
2379 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2380 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2381 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2382 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2383 faster and more reliable communication between api_lib and tcpip.
2385 2007-03-21 Frédéric Bernon
2386 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2388 2007-03-21 Frédéric Bernon
2389 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2391 2007-03-21 Kieran Mansley
2392 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2395 2007-03-21 Kieran Mansley
2396 * Fix all uses of pbuf_header to check the return value. In some
2397 cases just assert if it fails as I'm not sure how to fix them, but
2398 this is no worse than before when they would carry on regardless
2401 2007-03-21 Kieran Mansley
2402 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2403 comment out missing header include in icmp.c
2405 2007-03-20 Frédéric Bernon
2406 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2407 synchronized with memp.h.
2409 2007-03-20 Frédéric Bernon
2410 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2411 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2412 network interfaces. Also fix a compiler warning.
2414 2007-03-20 Kieran Mansley
2415 * udp.c: Only try and use pbuf_header() to make space for headers if
2416 not a ROM or REF pbuf.
2418 2007-03-19 Frédéric Bernon
2419 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2422 2007-03-19 Frédéric Bernon
2423 * Remove unimplemented "memp_realloc" function from memp.h.
2425 2007-03-11 Simon Goldschmidt
2426 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2429 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2430 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2431 (missing `const' qualifier in socket functions), to get more compatible to
2432 standard POSIX sockets.
2434 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2435 * sockets.c: Add asserts inside bind, connect and sendto to check input
2436 parameters. Remove excessive set_errno() calls after get_socket(), because
2437 errno is set inside of get_socket(). Move last sock_set_errno() inside
2440 2007-03-09 Simon Goldschmidt
2441 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2442 was allocated too small.
2444 2007-03-06 Simon Goldschmidt
2445 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2446 the stack from concurrent access.
2448 2007-03-06 Frédéric Bernon, Dmitry Potapov
2449 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2450 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2452 2007-03-06 Simon Goldschmidt
2453 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2454 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2456 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2457 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2458 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2459 Allow to do ARP processing for incoming packets inside tcpip_thread
2460 (protecting ARP layer against concurrent access). You can also disable
2461 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2462 Older ports have to use tcpip_ethinput.
2464 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2465 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2466 from pointer target type"
2468 2007-03-05 Frédéric Bernon
2469 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2470 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2472 2007-03-04 Frédéric Bernon
2473 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2476 2007-03-04 Frédéric Bernon
2477 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2479 The api_msg struct stay on the stack (not moved to netconn struct).
2481 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2482 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2483 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2484 Also fixed cast warning in pbuf_alloc()
2486 2007-03-04 Simon Goldschmidt
2487 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2488 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2490 2007-03-03 Frédéric Bernon
2491 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2492 It is static, and never used in udp.c except udp_init().
2494 2007-03-02 Simon Goldschmidt
2495 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2496 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2497 initialized before tcpip_thread is running (e.g. before OS is started)
2499 2007-03-02 Frédéric Bernon
2500 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2503 2007-02-28 Kieran Mansley
2504 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2505 outside the region of the pbuf by pbuf_header()
2507 2007-02-28 Kieran Mansley
2508 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2509 when supplied timeout is also non-zero
2513 2006-12-05 Leon Woestenberg
2514 * CHANGELOG: Mention STABLE-1.2.0 release.
2518 2006-12-01 Christiaan Simons
2519 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2520 Note this is a workaround. Currently I have no other options left.
2522 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2523 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2524 to include/lwip/opt.h.
2525 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2526 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2527 * opt.h: Add above new options.
2529 2006-08-18 Christiaan Simons
2530 * tcp_{in,out}.c: added SNMP counters.
2531 * ipv4/ip.c: added SNMP counters.
2532 * ipv4/ip_frag.c: added SNMP counters.
2534 2006-08-08 Christiaan Simons
2535 * etharp.{c,h}: added etharp_find_addr() to read
2536 (stable) ethernet/IP address pair from ARP table
2538 2006-07-14 Christiaan Simons
2539 * mib_structs.c: added
2540 * include/lwip/snmp_structs.h: added
2541 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2543 2006-07-06 Christiaan Simons
2544 * snmp/asn1_{enc,dec}.c added
2546 * snmp/msg_{in,out}.c added
2547 * include/lwip/snmp_asn1.h added
2548 * include/lwip/snmp_msg.h added
2549 * doc/snmp_agent.txt added
2551 2006-03-29 Christiaan Simons
2552 * inet.c, inet.h: Added platform byteswap support.
2553 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2554 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2558 2006-11-30 Christiaan Simons
2559 * dhcp.c: Fixed false triggers of request_timeout.
2561 2006-11-28 Christiaan Simons
2562 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2564 2006-10-11 Christiaan Simons
2565 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2566 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2567 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2568 identifier from 170 to 136 (bug #17574).
2570 2006-10-10 Christiaan Simons
2571 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2573 2006-08-17 Christiaan Simons
2574 * udp.c: Fixed bug #17200, added check for broadcast
2575 destinations for PCBs bound to a unicast address.
2577 2006-08-07 Christiaan Simons
2578 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2580 2006-06-27 Christiaan Simons
2581 * api_msg.c: Applied patch for cold case (bug #11135).
2582 In accept_function() ensure newconn->callback is always initialized.
2584 2006-06-15 Christiaan Simons
2585 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2586 facilitate printing of mem_size_t and u16_t statistics.
2588 2006-06-14 Christiaan Simons
2589 * api_msg.c: Applied patch #5146 to handle allocation failures
2590 in accept() by Kevin Lawson.
2592 2006-05-26 Christiaan Simons
2593 * api_lib.c: Removed conn->sem creation and destruction
2594 from netconn_write() and added sys_sem_new to netconn_new_*.
2598 2006-03-03 Christiaan Simons
2599 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2600 access and added pbuf_alloc() return value checks.
2602 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2603 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2604 now handled by the checksum routine properly.
2606 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2607 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2608 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2610 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2611 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2612 submitted by Mitrani Hiroshi.
2614 2005-12-15 Christiaan Simons
2615 * inet.c: Disabled the added summing routine to preserve code space.
2617 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2618 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2619 Added Curt McDowell's optimized checksumming routine for future
2620 inclusion. Need to create test case for unaliged, aligned, odd,
2621 even length combination of cases on various endianess machines.
2623 2005-12-09 Christiaan Simons
2624 * inet.c: Rewrote standard checksum routine in proper portable C.
2626 2005-11-25 Christiaan Simons
2627 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2628 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2629 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2631 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2632 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2633 routine by Peter Jolasson.
2634 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2636 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2637 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2638 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2640 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2641 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2643 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2644 * udp.c: UDP pcb->recv() was called even when it was NULL.
2648 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2649 * etharp.*: Disabled multiple packets on the ARP queue.
2650 This clashes with TCP queueing.
2652 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2653 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2654 Halved the ARP period, doubled the period counts.
2655 ETHARP_MAX_PENDING now should be at least 2. This prevents
2656 the counter from reaching 0 right away (which would allow
2657 too little time for ARP responses to be received).
2659 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2660 * dhcp.c: Decline messages were not multicast but unicast.
2661 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2662 Do not try hard to insert arbitrary packet's source address,
2663 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2664 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2665 querying an address will see it appear in the cache (DHCP could
2666 suffer from this when a server invalidly gave an in-use address.)
2667 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2668 comparing network addresses (identifiers), not the network masks
2670 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2671 IP address actually belongs to the network of the given interface.
2673 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2674 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2678 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2679 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2680 even if one is already pending, if the rcv_wnd is above a threshold
2681 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2682 delayed ACK in order to open the window if the stack is only receiving data.
2684 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2685 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2687 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2688 * etharp.c: Make sure the first pbuf queued on an ARP entry
2689 is properly ref counted.
2691 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2692 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2693 warnings about comparison.
2694 * pbuf.c: Stopped compiler complaining of empty if statement
2695 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2696 * tcp.c: Stopped compiler complaining of empty if statement
2697 when LWIP_DEBUGF() empty.
2698 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2699 * inet.c: Added a couple of casts to quiet the compiler.
2700 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2702 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2703 * inet.c: Made data types consistent in inet_ntoa().
2704 Added casts for return values of checksum routines, to pacify compiler.
2705 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2706 Small corrections to some debugging statements, to pacify compiler.
2708 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2709 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2710 * ethernetif.c Updated low_level_output() to match prototype for
2711 netif->linkoutput and changed low_level_input() similarly for consistency.
2712 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2713 of raw_recv() in raw.h and so avoid compiler error.
2714 * sockets.c: Added trivial (int) cast to keep compiler happier.
2715 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2721 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2722 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2723 your cc.h file defines this either 1 or 0. If non-defined,
2725 * .c: Added <string.h> and <errno.h> includes where used.
2726 * etharp.c: Made some array indices unsigned.
2728 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2729 * netif.*: Added netif_set_up()/down().
2730 * dhcp.c: Changes to restart program flow.
2732 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2733 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2734 single-pass lookup for different candidates. Should exploit locality.
2736 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2737 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2738 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2739 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2740 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2744 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2745 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2746 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2747 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2748 is to prefix the 14-bit Ethernet headers with two padding bytes.
2750 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2751 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2752 * etharp.c: Fixed the case where the packet that initiates the ARP request
2753 is not queued, and gets lost. Fixed the case where the packets destination
2754 address is already known; we now always queue the packet and perform an ARP
2761 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2762 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2763 * Fixed two possible NULL references in rare cases.
2769 * Fixed DHCP which did not include the IP address in DECLINE messages.
2773 * etharp.c has been hauled over a bit.
2779 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2780 * Packets sent from ARP queue had invalid source hardware address.
2784 * Pass-by ARP requests do now update the cache.
2788 * No longer dependent on ctype.h.
2789 * New socket options.
2790 * Raw IP pcb support.
2796 * Some debug formatters and casts fixed.
2797 * Numereous fixes in PPP.
2801 * DEBUGF now is LWIP_DEBUGF
2802 * pbuf_dechain() has been re-enabled.
2803 * Mentioned the changed use of CVS branches in README.
2809 * Fixed pool pbuf memory leak in pbuf_alloc().
2810 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2811 Reported by Savin Zlobec.
2813 * PBUF_POOL chains had their tot_len field not set for non-first
2814 pbufs. Fixed in pbuf_alloc().
2818 * Added PPP stack contributed by Marc Boucher
2822 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2824 * ARP queueuing now queues the latest packet instead of the first.
2825 This is the RFC recommended behaviour, but can be overridden in
2832 * TCP has been fixed to deal with the new use of the pbuf->ref
2835 * DHCP dhcp_inform() crash bug fixed.
2839 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2840 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2841 Implemented by David Haas.
2847 * The packet buffer implementation has been enhanced to support
2848 zero-copy and copy-on-demand for packet buffers which have their
2849 payloads in application-managed memory.
2850 Implemented by David Haas.
2852 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2853 if an outgoing packet can be directly sent on the link, or perform
2854 a copy-on-demand when necessary.
2856 The application can safely assume the packet is sent, and the RAM
2857 is available to the application directly after calling udp_send()
2858 or similar function.
2862 * ARP_QUEUEING should now correctly work for all cases, including
2864 Implemented by Leon Woestenberg.
2868 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2869 to a '0.0.0.0' IP address.
2871 * The packet buffer implementation is changed. The pbuf->ref counter
2872 meaning has changed, and several pbuf functions have been
2873 adapted accordingly.
2875 * netif drivers have to be changed to set the hardware address length field
2876 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2877 See the contrib/ports/c16x cs8900 driver as a driver example.
2879 * netif's have a dhcp field that must be initialized to NULL by the driver.
2880 See the contrib/ports/c16x cs8900 driver as a driver example.
2882 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2883 logged in CVS but have not been explained here.
2885 (0.5.3) Changes since version 0.5.2
2889 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2890 threads because it wasn't protected by semaphores.
2894 * struct ip_addr now packed.
2896 * The name of the time variable in arp.c has been changed to ctime
2897 to avoid conflicts with the time() function.
2899 (0.5.2) Changes since version 0.5.1
2903 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2907 * A bug in tcp_parseopt() could cause the stack to hang because of a
2908 malformed TCP option.
2910 * The address of new connections in the accept() function in the BSD
2911 socket library was not handled correctly.
2913 * pbuf_dechain() did not update the ->tot_len field of the tail.
2915 * Aborted TCP connections were not handled correctly in all
2920 * All protocol header structs are now packed.
2922 * The ->len field in the tcp_seg structure now counts the actual
2923 amount of data, and does not add one for SYN and FIN segments.
2925 (0.5.1) Changes since version 0.5.0
2929 * Possible to run as a user process under Linux.
2931 * Preliminary support for cross platform packed structs.
2933 * ARP timer now implemented.
2937 * TCP output queue length was badly initialized when opening
2940 * TCP delayed ACKs were not sent correctly.
2942 * Explicit initialization of BSS segment variables.
2944 * read() in BSD socket library could drop data.
2946 * Problems with memory alignment.
2948 * Situations when all TCP buffers were used could lead to
2951 * TCP MSS option wasn't parsed correctly.
2953 * Problems with UDP checksum calculation.
2955 * IP multicast address tests had endianess problems.
2957 * ARP requests had wrong destination hardware address.
2961 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2963 * A ->linkoutput() member was added to struct netif.
2965 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2967 * ntoh* macros are now null definitions for big endian CPUs.
2969 (0.5.0) Changes since version 0.4.2
2973 * Redesigned operating system emulation layer to make porting easier.
2975 * Better control over TCP output buffers.
2977 * Documenation added.
2981 * Locking issues in buffer management.
2983 * Bugfixes in the sequential API.
2985 * IP forwarding could cause memory leakage. This has been fixed.
2989 * Directory structure somewhat changed; the core/ tree has been
2992 (0.4.2) Changes since version 0.4.1
2996 * Experimental ARP implementation added.
2998 * Skeleton Ethernet driver added.
3000 * Experimental BSD socket API library added.
3004 * In very intense situations, memory leakage could occur. This has
3009 * Variables named "data" and "code" have been renamed in order to
3010 avoid name conflicts in certain compilers.
3012 * Variable++ have in appliciable cases been translated to ++variable
3013 since some compilers generate better code in the latter case.
3015 (0.4.1) Changes since version 0.4
3019 * TCP: Connection attempts time out earlier than data
3020 transmissions. Nagle algorithm implemented. Push flag set on the
3021 last segment in a burst.
3023 * UDP: experimental support for UDP-Lite extensions.
3027 * TCP: out of order segments were in some cases handled incorrectly,
3028 and this has now been fixed. Delayed acknowledgements was broken
3029 in 0.4, has now been fixed. Binding to an address that is in use
3030 now results in an error. Reset connections sometimes hung an
3031 application; this has been fixed.
3033 * Checksum calculation sometimes failed for chained pbufs with odd
3034 lengths. This has been fixed.
3036 * API: a lot of bug fixes in the API. The UDP API has been improved
3037 and tested. Error reporting and handling has been
3038 improved. Logical flaws and race conditions for incoming TCP
3039 connections has been found and removed.
3041 * Memory manager: alignment issues. Reallocating memory sometimes
3042 failed, this has been fixed.
3044 * Generic library: bcopy was flawed and has been fixed.
3048 * API: all datatypes has been changed from generic ones such as
3049 ints, to specified ones such as u16_t. Functions that return
3050 errors now have the correct type (err_t).
3052 * General: A lot of code cleaned up and debugging code removed. Many
3053 portability issues have been fixed.
3055 * The license was changed; the advertising clause was removed.
3059 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3060 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3063 (0.4) Changes since version 0.3.1
3065 * Memory management has been radically changed; instead of
3066 allocating memory from a shared heap, memory for objects that are
3067 rapidly allocated and deallocated is now kept in pools. Allocation
3068 and deallocation from those memory pools is very fast. The shared
3069 heap is still present but is used less frequently.
3071 * The memory, memory pool, and packet buffer subsystems now support
3072 4-, 2-, or 1-byte alignment.
3074 * "Out of memory" situations are handled in a more robust way.
3076 * Stack usage has been reduced.
3078 * Easier configuration of lwIP parameters such as memory usage,
3079 TTLs, statistics gathering, etc. All configuration parameters are
3080 now kept in a single header file "lwipopts.h".
3082 * The directory structure has been changed slightly so that all
3083 architecture specific files are kept under the src/arch
3086 * Error propagation has been improved, both in the protocol modules
3089 * The code for the RTXC architecture has been implemented, tested
3092 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3093 the Internet checksum modules.
3095 * Bugs related to porting between a 32-bit and a 16-bit architecture
3096 have been found and corrected.
3098 * The license has been changed slightly to conform more with the
3099 original BSD license, including the advertisement clause.
3101 (0.3.1) Changes since version 0.3
3103 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3104 RAM never returned the RAM when the pbuf was deallocated.
3106 * TCP congestion control, window updates and retransmissions did not
3107 work correctly. This has now been fixed.
3109 * Bugfixes in the API.
3111 (0.3) Changes since version 0.2
3113 * New and improved directory structure. All include files are now
3114 kept in a dedicated include/ directory.
3116 * The API now has proper error handling. A new function,
3117 netconn_err(), now returns an error code for the connection in
3120 * Improvements in the memory management subsystem. The system now
3121 keeps a pointer to the lowest free memory block. A new function,
3122 mem_malloc2() tries to allocate memory once, and if it fails tries
3123 to free some memory and retry the allocation.
3125 * Much testing has been done with limited memory
3126 configurations. lwIP now does a better job when overloaded.
3128 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3130 * Many bugfixes in the TCP code:
3132 - Fixed a bug in tcp_close().
3134 - The TCP receive window was incorrectly closed when out of
3135 sequence segments was received. This has been fixed.
3137 - Connections are now timed-out of the FIN-WAIT-2 state.
3139 - The initial congestion window could in some cases be too
3140 large. This has been fixed.
3142 - The retransmission queue could in some cases be screwed up. This
3145 - TCP RST flag now handled correctly.
3147 - Out of sequence data was in some cases never delivered to the
3148 application. This has been fixed.
3150 - Retransmitted segments now contain the correct acknowledgment
3151 number and advertised window.
3153 - TCP retransmission timeout backoffs are not correctly computed
3154 (ala BSD). After a number of retransmissions, TCP now gives up
3157 * TCP connections now are kept on three lists, one for active
3158 connections, one for listening connections, and one for
3159 connections that are in TIME-WAIT. This greatly speeds up the fast
3160 timeout processing for sending delayed ACKs.
3162 * TCP now provides proper feedback to the application when a
3163 connection has been successfully set up.
3165 * More comments have been added to the code. The code has also been
3166 somewhat cleaned up.
3168 (0.2) Initial public release.