5 * [Enter new changes just after this line - do not remove this line]
9 2011-09-21: Simon Goldschmidt
10 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
11 send (TCP only, bug #33820)
13 2011-09-21: Simon Goldschmidt
14 * init.c: Converted runtime-sanity-checks into compile-time checks that can
15 be disabled (since runtime checks can often not be seen on embedded targets)
17 2011-09-11: Simon Goldschmidt
18 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
19 to get a clear separation of which functions an application or port may use
22 2011-09-11: Simon Goldschmidt
23 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
24 initial local TCP/UDP ports (so that different port ranges are used after
25 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
27 2011-09-03: Simon Goldschmidt
28 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
30 2011-08-24: Simon Goldschmidt
31 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
33 2011-07-26: Simon Goldschmidt
34 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
35 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
37 2011-07-21: Simon Goldschmidt (patch by hanhui)
38 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
39 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
40 Also added code to allow ip_forward() to forward non-broadcast packets to
41 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
43 2011-07-21: Simon Goldschmidt
44 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
45 ioctl/FIONREAD return the size of the next pending datagram.
47 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
48 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
51 2011-05-25: Simon Goldschmidt
52 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
53 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
54 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
55 code so that the code is more readable.
57 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
58 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
59 Ivan! (this is work in progress: we're just post release anyway :-)
61 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
62 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
68 2011-09-23: Simon Goldschmidt
69 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
70 the last packet including FIN can lose data
72 2011-09-22: Simon Goldschmidt
73 * tcp.c: fixed bug #34360 tcp_shutdown: RST on unacked is not send when
74 shutting down both rx AND tx
76 2011-09-22: Simon Goldschmidt
77 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
80 2011-09-21: Simon Goldschmidt
81 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
84 2011-09-20: Simon Goldschmidt
85 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
87 2011-09-11: Simon Goldschmidt
88 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
91 2011-09-09: Simon Goldschmidt
92 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
95 2011-09-03: Simon Goldschmidt
96 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
97 is aggregated and sent to application
99 2011-09-01: Simon Goldschmidt
100 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
103 2011-09-01: Simon Goldschmidt
104 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
106 2011-08-24: Simon Goldschmidt
107 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
109 2011-08-24: Simon Goldschmidt
110 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
111 accept() on UDP connections
113 2011-08-24: Simon Goldschmidt
114 * sockets.h: fixed bug #34057 socklen_t should be a typedef
116 2011-08-24: Simon Goldschmidt
117 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
119 2011-08-24: Simon Goldschmidt
120 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
122 2011-08-24: Simon Goldschmidt
123 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
125 2011-08-22: Simon Goldschmidt
126 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
127 merely prevents nagle from not transmitting fast after closing.)
129 2011-07-22: Simon Goldschmidt
130 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
131 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
132 lwip_send() sends as much as possible for non-blocking sockets
134 2011-07-22: Simon Goldschmidt
135 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
136 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
137 at regular intervals from main level.
139 2011-07-21: Simon Goldschmidt
140 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
141 sending an ARP request when an ARP entry is used in the last minute before
144 2011-07-04: Simon Goldschmidt
145 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
147 2011-06-26: Simon Goldschmidt
148 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
149 updating its documentation only.
151 2011-06-26: Simon Goldschmidt
152 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
155 2011-06-26: Simon Goldschmidt
156 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
164 2011-03-27: Simon Goldschmidt
165 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
166 calculate it in tcp_zero_window_probe (the only place where it was used).
168 2010-11-21: Simon Goldschmidt
169 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
172 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
173 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
174 IP_MULTICAST_LOOP at socket- and raw-API level.
176 2010-06-16: Simon Goldschmidt
177 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
178 link-layer-addressed UDP traffic to be received while a netif is down (just
179 like DHCP during configuration)
181 2010-05-22: Simon Goldschmidt
182 * many many files: bug #27352: removed packing from ip_addr_t, the packed
183 version is now only used in protocol headers. Added global storage for
184 current src/dest IP address while in input functions.
186 2010-05-16: Simon Goldschmidt
187 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
188 calculation (and use them throughout the stack where applicable)
190 2010-05-16: Simon Goldschmidt
191 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
192 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
194 2010-05-16: Simon Goldschmidt
195 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
196 MEMP pool instead of the heap
198 2010-05-13: Simon Goldschmidt
199 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
200 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
201 packets to more than one pcb.
203 2010-05-02: Simon Goldschmidt
204 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
205 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
207 2010-04-30: Simon Goldschmidt
208 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
209 take a precalculated checksum, added pbuf_fill_chksum() to copy data
210 into a pbuf and at the same time calculating the checksum for that data
212 2010-04-29: Simon Goldschmidt
213 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
214 2-byte-aligned IP addresses and MAC addresses
216 2010-04-28: Patch by Bill Auerbach
217 * ip.c: Inline generating IP checksum to save a function call
219 2010-04-14: Simon Goldschmidt
220 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
221 tcpip_thread processes messages or timeouts to implement a watchdog.
223 2010-03-28: Simon Goldschmidt
224 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
225 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
227 2010-03-27: Simon Goldschmidt
228 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
229 etharp_query to prevent unnecessary function calls (inspired by
232 2010-03-20: Simon Goldschmidt
233 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
234 since the linker cannot do this automatically to save space.
236 2010-03-20: Simon Goldschmidt
237 * opt.h, etharp.c/.h: Added support for static ARP table entries
239 2010-03-14: Simon Goldschmidt
240 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
241 when creating TCP segments, not when (re-)transmitting them.
243 2010-03-07: Simon Goldschmidt
244 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
245 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
246 This should speed up receiving data on sockets as the select code in
247 event_callback is only executed when select is waiting.
249 2010-03-06: Simon Goldschmidt
250 * tcp_out.c: task #7013 (Create option to have all packets delivered to
251 netif->output in one piece): Always copy to try to create single pbufs
254 2010-03-06: Simon Goldschmidt
255 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
256 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
257 for tcp netconns to receive pbufs, not netbufs; use that function
260 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
261 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
262 Work on tcp_enqueue: Don't waste memory when chaining segments,
263 added option TCP_OVERSIZE to prevent creating many small pbufs when
264 calling tcp_write with many small blocks of data. Instead, pbufs are
265 allocated larger than needed and the space is used for later calls to
268 2010-02-21: Simon Goldschmidt
269 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
272 2010-02-21: Simon Goldschmidt
273 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
274 implementation of tcp to make API usage cleare to application programmers
276 2010-02-14: Simon Goldschmidt/Stephane Lesage
277 * ip_addr.h: Improved some defines working on ip addresses, added faster
278 macro to copy addresses that cannot be NULL
280 2010-02-13: Simon Goldschmidt
281 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
282 blocking send operation)
284 2010-02-12: Simon Goldschmidt
285 * sockets.c/.h: Added a minimal version of posix fctl() to have a
286 standardised way to set O_NONBLOCK for nonblocking sockets.
288 2010-02-12: Simon Goldschmidt
289 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
290 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
291 and dhcp work with user-allocated structs instead of callin mem_malloc
293 2010-02-12: Simon Goldschmidt/Jeff Barber
294 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
295 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
297 2010-02-12: Simon Goldschmidt
298 * sys layer: task #10139 (Prefer statically allocated memory): converted
299 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
300 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
301 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
302 to let sys.h use binary semaphores instead of mutexes - as before)
304 2010-02-09: Simon Goldschmidt (Simon Kallweit)
305 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
306 (Restart system timeout handling)
308 2010-02-09: Simon Goldschmidt
309 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
310 netif.c) - loopif does not have to be created by the port any more,
311 just define LWIP_HAVE_LOOPIF to 1.
313 2010-02-08: Simon Goldschmidt
314 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
315 inet_ntoa_r/ipaddr_ntoa_r
317 2010-02-08: Simon Goldschmidt
318 * netif.h: Added netif_s/get_igmp_mac_filter() macros
320 2010-02-05: Simon Goldschmidt
321 * netif.h: Added function-like macros to get/set the hostname on a netif
323 2010-02-04: Simon Goldschmidt
324 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
325 make changing the actual implementation behind the typedef easier.
327 2010-02-01: Simon Goldschmidt
328 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
329 for allocating memory when getaddrinfo() is called.
331 2010-01-31: Simon Goldschmidt
332 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
333 them once instead of parsing for every option. This also removes
334 the need for mem_malloc from dhcp_recv and makes it possible to
335 correctly retrieve the BOOTP file.
337 2010-01-30: simon Goldschmidt
338 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
341 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
342 * api.h, api_msg.c, sockets.c: Added except set support in select
345 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
346 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
347 Add non-blocking support for connect (partly from patch #6860),
348 plus many cleanups in socket & netconn API.
350 2010-01-27: Simon Goldschmidt
351 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
352 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
354 2010-01-26: Simon Goldschmidt
355 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
357 2010-01-14: Simon Goldschmidt
358 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
359 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
361 2010-01-13: Simon Goldschmidt
362 * mem.c: The heap now may be moved to user-defined memory by defining
363 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
364 (patch #6966 and bug #26133)
366 2010-01-10: Simon Goldschmidt (Bill Auerbach)
367 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
370 2010-01-10: Simon Goldschmidt
371 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
372 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
374 2009-12-31: Simon Goldschmidt
375 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
376 added timers.c/.h: Separated timer implementation from semaphore/mbox
377 implementation, moved timer implementation to timers.c/.h, timers are
378 now only called from tcpip_thread or by explicitly checking them.
381 2009-12-27: Simon Goldschmidt
382 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
383 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
388 2011-04-20: Simon Goldschmidt
389 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
391 2011-04-13: Simon Goldschmidt
392 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
393 using ports in the IANA private/dynamic range (49152 through 65535).
395 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
396 * etharp.h/.c: Fixed broken VLAN support.
398 2011-03-27: Simon Goldschmidt
399 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
400 pcbs) by checking if the pcb was bound (local_port != 0).
402 2011-03-27: Simon Goldschmidt
403 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
405 2011-03-27: Simon Goldschmidt
406 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
407 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
409 2011-03-27: Simon Goldschmidt
410 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
411 is present never times out) by starting retransmission timer before checking
414 2011-03-22: Simon Goldschmidt
415 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
416 calling sio_read_abort() if the file descriptor is valid.
418 2011-03-14: Simon Goldschmidt
419 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
420 more than once can render a socket useless) since it mainly involves changing
421 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
423 2011-03-13: Simon Goldschmidt
424 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
425 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
426 use EALRADY instead of -1
428 2011-03-13: Simon Goldschmidt
429 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
430 connection has been aborted by err_tcp (since this is not a normal closing
433 2011-03-13: Simon Goldschmidt
434 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
435 with pcb->state != CLOSED
437 2011-02-17: Simon Goldschmidt
438 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
441 2011-02-17: Simon Goldschmidt
442 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
444 2011-01-24: Simon Goldschmidt
445 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
447 2010-12-02: Simon Goldschmidt
448 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
450 2010-11-23: Simon Goldschmidt
451 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
452 LWIP_SO_RCVBUF and ioctl/FIONREAD.
454 2010-11-23: Simon Goldschmidt
455 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
456 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
458 2010-11-23: Simon Goldschmidt
459 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
460 refusing 'refused_data' again.
462 2010-11-22: Simon Goldschmidt
463 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
464 after a successful nonblocking connection.
466 2010-11-22: Simon Goldschmidt
467 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
468 must be sent link-local
470 2010-11-22: Simon Goldschmidt
471 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
474 2010-11-20: Simon Goldschmidt
475 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
477 2010-11-20: Simon Goldschmidt
478 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
479 resemble other stacks.
481 2010-11-20: Simon Goldschmidt
482 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
483 no-copy TCP writes will never succeed.
485 2010-11-20: Simon Goldschmidt
486 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
487 not match documentation: return ERR_ARG instead of ERR_VAL if not
488 initialized or wrong argument.
490 2010-10-20: Simon Goldschmidt
491 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
493 2010-10-05: Simon Goldschmidt
494 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
495 replugging the network cable after an AutoIP address was assigned.
497 2010-08-10: Simon Goldschmidt
498 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
500 2010-08-03: Simon Goldschmidt
501 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
503 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
504 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
505 endian architectures)
507 2010-07-28: Simon Goldschmidt
508 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
511 2010-07-27: Simon Goldschmidt
512 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
513 harm but never did anything
515 2010-07-21: Simon Goldschmidt
516 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
519 2010-07-16: Kieran Mansley
520 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
522 2010-07-10: Simon Goldschmidt
523 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
525 2010-06-30: Simon Goldschmidt
526 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
529 2010-06-28: Kieran Mansley
530 * timers.c remove unportable printing of C function pointers
532 2010-06-24: Simon Goldschmidt
533 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
534 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
536 2010-06-24: Simon Goldschmidt
537 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
538 implemented shutdown at socket level.
540 2010-06-21: Simon Goldschmidt
541 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
542 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
543 custom pbufs that reference other (original) pbufs. Additionally set
544 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
546 2010-06-15: Simon Goldschmidt
547 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
549 2010-06-14: Simon Goldschmidt
550 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
552 2010-06-12: Simon Goldschmidt
553 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
556 2010-05-17: Simon Goldschmidt
557 * netdb.c: Correctly NULL-terminate h_addr_list
559 2010-05-16: Simon Goldschmidt
560 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
561 "symbol already defined" i.e. when linking to winsock
563 2010-05-05: Simon Goldschmidt
564 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
567 2010-04-21: Simon Goldschmidt
568 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
571 2010-03-28: Luca Ceresoli
572 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
574 2010-03-27: Luca Ceresoli
575 * mib2.c: patch #7130: remove meaningless const qualifiers
577 2010-03-26: Simon Goldschmidt
578 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
580 2010-03-26: Simon Goldschmidt
581 * various files: Fixed compiling with different options disabled (TCP/UDP),
582 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
584 2010-03-25: Simon Goldschmidt
585 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
587 2010-03-25: Simon Goldschmidt
588 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
589 overrunning our rcv_wnd in ooseq case.
591 2010-03-22: Simon Goldschmidt
592 * tcp.c: tcp_listen() did not copy the pcb's prio.
594 2010-03-19: Simon Goldschmidt
595 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
597 2010-03-14: Simon Goldschmidt
598 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
599 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
600 and basing PBUF_LINK_HLEN on it.
602 2010-03-08: Simon Goldschmidt
603 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
604 when assiging routable address): when checking incoming packets and
605 aborting existing connection on address change, filter out link-local
608 2010-03-06: Simon Goldschmidt
609 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
611 2010-03-06: Simon Goldschmidt
612 * ipv4/ip.c: Don't try to forward link-local addresses
614 2010-03-06: Simon Goldschmidt
615 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
618 2010-03-05: Simon Goldschmidt
619 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
622 2010-03-05: Simon Goldschmidt
623 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
624 into multiple calls to tcp_write.
626 2010-02-21: Simon Goldschmidt
627 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
628 the implementation of DNS_USES_STATIC_BUF==1)
630 2010-02-20: Simon Goldschmidt
631 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
632 close() vs. shutdown(). Now the application does not get any more
633 recv callbacks after calling tcp_close(). Added tcp_shutdown().
635 2010-02-19: Simon Goldschmidt
636 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
637 confusion with realloc()
639 2010-02-15: Simon Goldschmidt/Stephane Lesage
640 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
643 2010-02-14: Simon Goldschmidt
644 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
645 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
646 admin-status of a netif are up
648 2010-02-14: Simon Goldschmidt
649 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
650 reception and is not really necessary
652 2010-02-14: Simon Goldschmidt
653 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
654 request was directed as us (RFC 826, Packet Reception), otherwise
655 only update existing entries; internalized some functions
657 2010-02-14: Simon Goldschmidt
658 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
659 disabled on netif used for PPPoE) by adding a new netif flag
660 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
661 device but prevents usage of ARP (so that ethernet_input can be used
664 2010-02-12: Simon Goldschmidt
665 * netif.c: netif_set_link_up/down: only do something if the link state
668 2010-02-12: Simon Goldschmidt/Stephane Lesage
669 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
672 2010-02-12: Simon Goldschmidt
673 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
675 2010-02-09: Simon Goldschmidt
676 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
677 (recv() makes receive window update for data that wasn't received by
680 2010-02-09: Simon Goldschmidt/Stephane Lesage
681 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
682 or any netconn_recv() error)
684 2010-02-09: Simon Goldschmidt
685 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
687 2010-02-09: Simon Goldschmidt
688 * netif.c: For loopback packets, adjust the stats- and snmp-counters
689 for the loopback netif.
691 2010-02-08: Simon Goldschmidt
692 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
693 since they are not used anywhere else.
695 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
696 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
697 (patch from bug #28798)
699 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
700 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
701 another bug when LWIP_RAND() returns zero.
703 2010-02-04: Simon Goldschmidt
704 * nearly every file: Use macros defined in ip_addr.h (some of them new)
705 to work with IP addresses (preparation for bug #27352 - Change ip_addr
706 from struct to typedef (u32_t) - and better code).
708 2010-01-31: Simon Goldschmidt
709 * netif.c: Don't call the link-callback from netif_set_up/down() since
710 this invalidly retriggers DHCP.
712 2010-01-29: Simon Goldschmidt
713 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
714 portability file inet.h and its contents from the stack: moved htonX-
715 functions to def.h (and the new def.c - they are not ipv4 dependent),
716 let inet.h depend on ip_addr.h and not the other way round.
717 This fixes bug #28732.
719 2010-01-28: Kieran Mansley
720 * tcp.c: Ensure ssthresh >= 2*MSS
722 2010-01-27: Simon Goldschmidt
723 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
724 callback can lead to accessing unallocated memory. As a consequence,
725 ERR_ABRT means the application has called tcp_abort()!
727 2010-01-25: Simon Goldschmidt
728 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
729 not implemented in SNMP): write-only or not-accessible are still
730 returned by getnext (though not by get)
732 2010-01-24: Simon Goldschmidt
733 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
734 not use reserved C/C++ keywords
736 2010-01-23: Simon Goldschmidt
737 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
740 2010-01-21: Simon Goldschmidt
741 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
742 if tcp_enqueue fails) both in raw- and netconn-API
744 2010-01-19: Simon Goldschmidt
745 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
747 2010-01-18: Iordan Neshev/Simon Goldschmidt
748 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
749 bugfix backports from 2.4.x.
751 2010-01-18: Simon Goldschmidt
752 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
754 2010-01-17: Simon Goldschmidt
755 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
756 task #10102: "netconn: clean up conn->err threading issues" by adding
757 error return value to struct api_msg_msg
759 2010-01-17: Simon Goldschmidt
760 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
761 to return err_t (bugs #27709 and #28087)
763 2010-01-14: Simon Goldschmidt
764 * ...: Use typedef for function prototypes throughout the stack.
766 2010-01-13: Simon Goldschmidt
767 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
768 window = 0) by correctly draining recvmbox/acceptmbox
770 2010-01-11: Simon Goldschmidt
771 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
772 erroneous callbacks) by copying the code from recent pppd
774 2010-01-10: Simon Goldschmidt
775 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
777 2010-01-10: Simon Goldschmidt
778 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
780 2010-01-08: Simon Goldschmidt
781 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
783 2010-01-08: Simon Goldschmidt
784 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
785 passed to dns_local_addhost() might be volatile
787 2010-01-07: Simon Goldschmidt
788 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
790 2010-01-06: Simon Goldschmidt
791 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
793 2009-12-31: Simon Goldschmidt
794 * many ppp files: Reorganised PPP source code from ucip structure to pppd
795 structure to easily compare our code against the pppd code (around v2.3.1)
797 2009-12-27: Simon Goldschmidt
798 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
806 2009-10-27 Simon Goldschmidt/Stephan Lesage
807 * netifapi.c/.h: Added netifapi_netif_set_addr()
809 2009-10-07 Simon Goldschmidt/Fabian Koch
810 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
811 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
813 2009-08-26 Simon Goldschmidt/Simon Kallweit
814 * slipif.c/.h: bug #26397: SLIP polling support
816 2009-08-25 Simon Goldschmidt
817 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
818 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
820 2009-08-25 Simon Goldschmidt
821 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
823 2009-08-24 Jakob Stoklund Olesen
824 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
825 to netif_set_link_up().
827 2009-08-23 Simon Goldschmidt
828 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
829 to a human-readable string.
833 2009-12-24: Kieran Mansley
834 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
837 2009-12-06: Simon Goldschmidt
838 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
839 be statically allocated (like in ucip)
841 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
842 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
844 2009-12-03: Simon Goldschmidt
845 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
846 could have non-zero length
848 2009-12-02: Simon Goldschmidt
849 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
850 tcp_input_pcb until after calling the pcb's callbacks
852 2009-11-29: Simon Goldschmidt
853 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
854 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
856 2009-11-29: Simon Goldschmidt
857 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
858 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
860 2009-11-26: Simon Goldschmidt
861 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
864 2009-11-26: Simon Goldschmidt
865 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
866 algorithm at PCB level
868 2009-11-22: Simon Goldschmidt
869 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
871 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
872 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
873 reusing time-wait pcb
875 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
876 * sockets.c: Fixed bug #28062: Data received directly after accepting
877 does not wake up select
879 2009-11-11: Simon Goldschmidt
880 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
882 2009-10-30: Simon Goldschmidt
883 * opt.h: Increased default value for TCP_MSS to 536, updated default
884 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
886 2009-10-28: Kieran Mansley
887 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
888 to follow algorithm from TCP/IP Illustrated
890 2009-10-27: Kieran Mansley
891 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
893 2009-10-25: Simon Goldschmidt
894 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
895 pcb->recv is NULL to keep rcv_wnd correct)
897 2009-10-25: Simon Goldschmidt
898 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
900 2009-10-23: Simon Goldschmidt (David Empson)
901 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
903 2009-10-21: Simon Goldschmidt
904 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
905 trailing 1 byte len (SYN/FIN)
907 2009-10-21: Simon Goldschmidt
908 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
910 2009-10-19: Simon Goldschmidt
911 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
912 conditional code to assert where applicable), check pbuf length before
913 testing for valid reply
915 2009-10-19: Simon Goldschmidt
916 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
917 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
919 2009-10-16: Simon Goldschmidt
920 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
921 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
924 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
925 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
927 2009-10-15: Simon Goldschmidt
928 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
931 2009-10-15: Simon Goldschmidt
932 * autoip.c: Fixed bug #27704: autoip starts with wrong address
933 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
934 of network byte order
936 2009-10-11 Simon Goldschmidt (Jörg Kesten)
937 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
938 which are not consecutive when retransmitting unacked segments
940 2009-10-09 Simon Goldschmidt
941 * opt.h: Fixed default values of some stats to only be enabled if used
942 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
944 2009-08-30 Simon Goldschmidt
945 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
946 function" by checking for loopback before calling ip_frag
948 2009-08-25 Simon Goldschmidt
949 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
951 2009-08-23 Simon Goldschmidt
952 * ppp.c: bug #27078: Possible memory leak in pppInit()
954 2009-08-23 Simon Goldschmidt
955 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
958 2009-08-23 Simon Goldschmidt
959 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
960 Fixed wrong parenthesis, added check in init.c
962 2009-08-23 Simon Goldschmidt
963 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
965 2009-08-23 Simon Goldschmidt
966 * many ppp files: bug #27267: Added include to string.h where needed
968 2009-08-23 Simon Goldschmidt
969 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
976 2009-05-10 Simon Goldschmidt
977 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
978 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
979 one pbuf to help MACs that don't support scatter-gather DMA.
981 2009-05-09 Simon Goldschmidt
982 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
983 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
985 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
986 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
987 extended info about the currently received packet.
989 2009-04-27 Simon Goldschmidt
990 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
992 2009-04-25 Simon Goldschmidt
993 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
994 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
996 2009-04-21 Simon Goldschmidt
997 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
998 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
999 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1000 as an external function for lookup.
1002 2009-04-15 Simon Goldschmidt
1003 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1005 2009-03-31 Kieran Mansley
1006 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1007 TCP timestamp options, off by default. Rework tcp_enqueue() to
1008 take option flags rather than specified option data
1010 2009-02-18 Simon Goldschmidt
1011 * cc.h: Added printf formatter for size_t: SZT_F
1013 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1014 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1017 2009-02-12 Simon Goldschmidt
1018 * init.h: Added LWIP_VERSION to get the current version of the stack
1020 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1021 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1022 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1025 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1026 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1027 is only used by UDPLITE at present, so conditionalise it.
1029 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1030 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1031 "seed" address. This should reduce AUTOIP conflicts if
1032 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1034 2008-10-02 Jonathan Larmour and Rishi Khan
1035 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1038 2008-06-30 Simon Goldschmidt
1039 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1040 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1041 mem_free to run between mem_malloc iterations. Added illegal counter for
1044 2008-06-27 Simon Goldschmidt
1045 * stats.h/.c, some other files: patch #6483: stats module improvement:
1046 Added defines to display each module's statistic individually, added stats
1047 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1049 2008-06-17 Simon Goldschmidt
1050 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1051 (define LWIP_ERR_T in cc.h)
1053 2008-06-17 Simon Goldschmidt
1054 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1057 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1058 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1059 modified version of patch # 6370: Moved loopif code to netif.c so that
1060 loopback traffic is supported on all netifs (all local IPs).
1061 Added option to limit loopback packets for each netifs.
1065 2009-08-12 Kieran Mansley
1066 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1067 out of window or out of order properly
1069 2009-08-12 Kieran Mansley
1070 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1072 2009-07-28 Simon Goldschmidt
1073 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1075 2009-07-27 Kieran Mansley
1076 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1078 2009-07-09 Kieran Mansley
1079 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1080 recv_avail and don't increment counters until message successfully
1083 2009-06-25 Kieran Mansley
1084 * api_msg.c api.h: BUG26722: initialise netconn write variables
1087 2009-06-25 Kieran Mansley
1088 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1090 2009-06-25 Kieran Mansley
1091 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1092 simultaneous close behaviour, and make snd_nxt have the same meaning
1095 2009-05-12 Simon Goldschmidt
1096 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1097 arp_table / uses etharp_query" by adding etharp_gratuitous()
1099 2009-05-12 Simon Goldschmidt
1100 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1101 to the IP header (used by igmp_ip_output_if)
1103 2009-05-06 Simon Goldschmidt
1104 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1105 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1107 2009-05-05 Simon Goldschmidt
1108 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1111 2009-05-04 Simon Goldschmidt
1112 * init.c: snmp was not initialized in lwip_init()
1114 2009-05-04 Frédéric Bernon
1115 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1117 2009-05-03 Simon Goldschmidt
1118 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1119 (and unsent->next == NULL)
1121 2009-05-02 Simon Goldschmidt
1122 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1123 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1125 2009-05-02 Simon Goldschmidt
1126 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1128 2009-05-01 Simon Goldschmidt
1129 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1131 2009-05-01 Simon Goldschmidt
1132 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1134 2009-04-29 Frédéric Bernon
1135 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1136 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1137 of broadcast packets even when this option wasn't set. Port maintainers
1138 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1139 If you want this option also filter broadcast on recv operations, you also
1140 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1142 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1143 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1144 DHCP/AUTOIP cooperation
1146 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1147 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1148 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1149 right place in tcp_output and tcp_rexmit).
1151 2009-04-25 Simon Goldschmidt
1152 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1153 when debugging": memp_sizes contained the wrong sizes (including sanity
1154 regions); memp pools for MEM_USE_POOLS were too small
1156 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1157 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1158 behavior, with with ip address string not ended by a '\0', a space or a
1161 2009-04-19 Simon Goldschmidt
1162 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1163 pcb->err is called, not pcb->connected (with an error code).
1165 2009-04-19 Simon Goldschmidt
1166 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1167 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1169 2009-04-19 Simon Goldschmidt
1170 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1171 in the header pbuf, not the data pbuf)
1173 2009-04-18 Simon Goldschmidt
1174 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1176 2009-04-15 Simon Goldschmidt
1177 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1179 2009-04-15 Simon Goldschmidt
1180 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1182 2009-04-15 Simon Goldschmidt
1183 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1184 ip_hinted_output() (for smaller code mainly)
1186 2009-04-15 Simon Goldschmidt
1187 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1189 2009-04-15 Simon Goldschmidt
1190 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1191 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1192 is big enough in dhcp_start
1194 2009-04-15 Simon Goldschmidt
1195 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1197 2009-04-15 Simon Goldschmidt
1198 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1200 2009-04-15 Simon Goldschmidt
1201 * sockets.c: bug #26121: set_errno can be overridden
1203 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1204 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1207 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1208 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1211 2009-03-31 Kieran Mansley
1212 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1213 updates are calculated and sent (BUG20515)
1215 * tcp_in.c: cope with SYN packets received during established states,
1216 and retransmission of initial SYN.
1218 * tcp_out.c: set push bit correctly when tcp segments are merged
1220 2009-03-27 Kieran Mansley
1221 * tcp_out.c set window correctly on probes (correcting change made
1224 2009-03-26 Kieran Mansley
1225 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1226 connections where no reset required (bug #25622)
1228 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1231 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1232 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1233 too small depending on MEM_ALIGNMENT
1235 2009-02-16 Simon Goldschmidt
1236 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1237 converted size argument of netconn_write to 'size_t'
1239 2009-02-16 Simon Goldschmidt
1240 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1241 by moving accept callback function pointer to TCP_PCB_COMMON
1243 2009-02-12 Simon Goldschmidt
1244 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1247 2009-02-11 Simon Goldschmidt
1248 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1250 2009-02-11 Simon Goldschmidt
1251 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1252 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1254 2009-02-10 Simon Goldschmidt
1255 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1256 Accepts_pending is decrease on a corresponding listen pcb when a connection
1257 in state SYN_RCVD is close.
1259 2009-01-28 Jonathan Larmour
1260 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1263 2008-12-19 Simon Goldschmidt
1264 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1266 2008-12-10 Tamas Somogyi, Frédéric Bernon
1267 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1268 port uses deleted netbuf.
1270 2008-10-18 Simon Goldschmidt
1271 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1274 2008-10-15 Simon Goldschmidt
1275 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1276 by packing the struct ip_reass_helper.
1278 2008-10-03 David Woodhouse, Jonathan Larmour
1279 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1281 2008-10-02 Jonathan Larmour
1282 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1283 padding is included.
1285 2008-09-30 Jonathan Larmour
1286 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1287 assertion check that addrlen isn't NULL.
1289 2008-09-30 Jonathan Larmour
1290 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1292 2008-08-26 Simon Goldschmidt
1293 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1294 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1296 2008-08-14 Simon Goldschmidt
1297 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1298 tcp_close returns != ERR_OK)
1300 2008-07-08 Frédéric Bernon
1301 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1302 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1304 2008-06-24 Jonathan Larmour
1305 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1306 if tcp_seg_copy fails.
1308 2008-06-17 Simon Goldschmidt
1309 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1310 and created defines for swapping bytes and folding u32 to u16.
1312 2008-05-30 Kieran Mansley
1313 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1314 rather than rcv_ann_wnd when deciding if packets are in-window.
1315 Contributed by <arasmussen@consultant.datasys.swri.edu>
1317 2008-05-30 Kieran Mansley
1318 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1319 passing as function pointers when MEM_LIBC_MALLOC is defined.
1321 2008-05-09 Jonathan Larmour
1322 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1323 stop it being treated as a fatal error.
1325 2008-04-15 Simon Goldschmidt
1326 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1329 2008-03-27 Simon Goldschmidt
1330 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1331 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1332 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1333 or heap memory from interrupt context
1335 2008-03-26 Simon Goldschmidt
1336 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1337 host sent a zero mss as TCP option.
1344 2008-03-10 Jonathan Larmour
1345 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1346 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1348 2008-01-22 Frédéric Bernon
1349 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1350 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1352 2008-01-14 Frédéric Bernon
1353 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1354 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1355 tcp_recv callback (see rawapi.txt).
1357 2008-01-14 Frédéric Bernon, Marc Chaland
1358 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1360 2008-01-12 Frédéric Bernon
1361 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1362 netconn::sem per netconn::op_completed like suggested for the task #7490
1363 "Add return value to sys_mbox_post".
1365 2008-01-12 Frédéric Bernon
1366 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1367 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1368 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1370 2008-01-10 Frédéric Bernon
1371 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1372 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1373 "blocking" ("block" parameter = 1).
1375 2008-01-10 Frédéric Bernon
1376 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1377 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1378 "Add return value to sys_mbox_post".
1380 2008-01-05 Frédéric Bernon
1381 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1382 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1383 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1384 indicate the number of pointers query by the mailbox. There is three defines
1385 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1386 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1387 parameter in your implementation, but to ignore it to keep the previous behavior.
1388 The new sys_mbox_trypost function return a value to know if the mailbox is
1389 full or if the message is posted. Take a look to sys_arch.txt for more details.
1390 This new function is used in tcpip_input (so, can be called in an interrupt
1391 context since the function is not blocking), and in recv_udp and recv_raw.
1393 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1394 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1395 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1396 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1397 documentation in the rawapi.txt file.
1399 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1400 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1402 2007-12-31 Frédéric Bernon, Luca Ceresoli
1403 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1404 in autoip". The change in etharp_raw could be removed, since all calls to
1405 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1406 wrong in the future.
1408 2007-12-30 Frédéric Bernon, Tom Evans
1409 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1410 Filtering" reported by Tom Evans.
1412 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1413 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1414 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1415 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1416 keep accepting new connections.
1418 2007-12-13 Frédéric Bernon
1419 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1420 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1422 2007-12-12 Frédéric Bernon
1423 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1424 are the one which have ram usage.
1426 2007-12-05 Frédéric Bernon
1427 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1428 set of variables (=0) or a local one (=1). In this last case, your port should
1429 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1430 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1432 2007-12-03 Simon Goldschmidt
1433 * ip.c: ip_input: check if a packet is for inp first before checking all other
1434 netifs on netif_list (speeds up packet receiving in most cases)
1436 2007-11-30 Simon Goldschmidt
1437 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1438 UDP: move a (connected) pcb selected for input to the front of the list of
1439 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1442 2007-11-28 Simon Goldschmidt
1443 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1445 2007-11-25 Simon Goldschmidt
1446 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1449 2007-11-24 Simon Goldschmidt
1450 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1451 to the new file netdb.c; included lwip_getaddrinfo.
1453 2007-11-21 Simon Goldschmidt
1454 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1455 based on the MTU of the netif used to send. Enabled by default. Disable by
1456 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1458 2007-11-19 Frédéric Bernon
1459 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1460 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1461 copy dns payload to parse the response), return an error if there is no place
1462 for a new query, and fix some minor problems.
1464 2007-11-16 Simon Goldschmidt
1465 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1466 removed files: core/inet.c, core/inet6.c
1467 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1468 inet and chksum part; changed includes in all lwIP files as appropriate
1470 2007-11-16 Simon Goldschmidt
1471 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1472 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1473 (gethostbyname/gethostbyname_r).
1475 2007-11-15 Jim Pettinato, Frédéric Bernon
1476 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1477 requests with RAW api interface. Initialization is done in lwip_init() with
1478 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1479 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1480 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1481 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1482 list with points to improve.
1484 2007-11-06 Simon Goldschmidt
1485 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1486 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1487 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1489 2007-11-06 Simon Goldschmidt
1490 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1491 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1492 implementation from netconn api applications.
1494 2007-11-03 Frédéric Bernon
1495 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1496 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1497 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1498 it. This is a first release which have to be improve for TCP. Note it used the
1499 netconn::recv_avail which need to be more "thread-safe" (note there is already
1500 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1502 2007-11-01 Frédéric Bernon, Marc Chaland
1503 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1504 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1505 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1506 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1507 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1509 2007-10-24 Frédéric Bernon
1510 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1511 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1512 some code (like we have talk in "patch #5919 : Create compile switch to remove
1513 select code"), but it could be done later.
1515 2007-10-08 Simon Goldschmidt
1516 * many files: Changed initialization: many init functions are not needed any
1517 more since we now rely on the compiler initializing global and static
1520 2007-10-06 Simon Goldschmidt
1521 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1522 to enqueue the received pbufs so that multiple packets can be reassembled
1523 simultaneously and no static reassembly buffer is needed.
1525 2007-10-05 Simon Goldschmidt
1526 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1527 all netifs (or ports) can use it.
1529 2007-10-05 Frédéric Bernon
1530 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1531 common function to reduce a little bit the footprint (for all functions using
1532 only the "netif" parameter).
1534 2007-10-03 Frédéric Bernon
1535 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1536 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1537 a little bit the footprint (for all functions using only the "netif" parameter).
1539 2007-09-15 Frédéric Bernon
1540 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1541 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1542 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1543 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1545 2007-09-10 Frédéric Bernon
1546 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1547 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1548 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1549 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1550 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1551 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1552 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1553 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1554 when it's queried (any direct call to "sysuptime" is changed by a call to
1555 snmp_get_sysuptime).
1557 2007-09-09 Frédéric Bernon, Bill Florac
1558 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1559 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1560 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1561 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1562 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1563 the next query message to receive the matching multicast streams).
1565 2007-09-08 Frédéric Bernon
1566 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1567 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1568 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1569 Enable to access to these fields with LWIP_TCP=0.
1571 2007-09-05 Frédéric Bernon
1572 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1573 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1574 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1575 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1576 help to reduce footprint, and to reduce "visibility" on the Internet.
1578 2007-09-05 Frédéric Bernon, Bill Florac
1579 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1580 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1581 parameters have to be provided: a task name, and a task stack size. For this
1582 one, since it's platform dependant, you could define the best one for you in
1583 your lwipopts.h. For port maintainers, you can just add these new parameters
1584 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1587 2007-09-05 Frédéric Bernon
1588 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1589 inside init.c for task #7142 "Sanity check user-configurable values".
1591 2007-09-04 Frédéric Bernon, Bill Florac
1592 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1593 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1594 value). It will avoid potential fragmentation problems, use a counter to know
1595 how many times a group is used on an netif, and free it when all applications
1596 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1597 check if LWIP_IGMP!=0).
1599 2007-09-03 Frédéric Bernon
1600 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1601 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1602 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1603 and/or the "interface" field (for netconn layer), for join/leave operations.
1604 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1605 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1607 2007-08-30 Frédéric Bernon
1608 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1609 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1610 with other API (application based on raw API, or future "socket2" API). Ports
1611 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1613 2007-08-30 Frédéric Bernon, Jonathan Larmour
1614 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1615 user-configurable values".
1617 2007-08-29 Frédéric Bernon
1618 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1619 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1620 spirit than the others modules. Modify some IGMP debug traces.
1622 2007-08-29 Frédéric Bernon
1623 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1624 Add lwip_init function to regroup all modules initializations, and to provide
1625 a place to add code for task #7142 "Sanity check user-configurable values".
1626 Ports maintainers should remove direct initializations calls from their code,
1627 and add init.c in their makefiles. Note that lwip_init() function is called
1628 inside tcpip_init, but can also be used by raw api users since all calls are
1629 disabled when matching options are disabled. Also note that their is new options
1630 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1632 2007-08-26 Marc Boucher
1633 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1634 since they can under certain circumstances be called with an invalid conn
1635 pointer after the connection has been closed (and conn has been freed).
1637 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1638 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1639 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1641 2007-08-22 Frédéric Bernon
1642 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1643 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1645 2007-08-22 Frédéric Bernon
1646 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1647 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1648 name is tcpip_input (we keep the name of 1.2.0 function).
1650 2007-08-17 Jared Grubb
1651 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1652 settings into new memp_std.h and optional user file lwippools.h. This adds
1653 more dynamic mempools, and allows the user to create an arbitrary number of
1654 mempools for mem_malloc.
1656 2007-08-16 Marc Boucher
1657 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1658 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1659 close the connection.
1661 2007-08-16 Marc Boucher
1662 * sockets.c: lwip_accept(): check netconn_peer() error return.
1664 2007-08-16 Marc Boucher
1665 * mem.c, mem.h: Added mem_calloc().
1667 2007-08-16 Marc Boucher
1668 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1669 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1670 and starving other message types.
1671 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1673 2007-08-16 Marc Boucher
1674 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1675 type and flgs (later renamed to flags).
1676 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1677 Improved lwip_recvfrom(). TCP push now propagated.
1679 2007-08-16 Marc Boucher
1680 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1683 2007-08-16 Marc Boucher
1684 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1685 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1686 Added PPPoE support and various PPP improvements.
1688 2007-07-25 Simon Goldschmidt
1689 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1690 making netbuf_copy_partial use this function.
1692 2007-07-25 Simon Goldschmidt
1693 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1694 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1697 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1698 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1699 a link callback in the netif struct, and functions to handle it. Be carefull
1700 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1701 if you want to be sure to be compatible with future changes...
1703 2007-06-30 Frédéric Bernon
1704 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1706 2007-06-21 Simon Goldschmidt
1707 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1708 LWIP_AUTOIP =0 and =1 to remove redundant code.
1710 2007-06-21 Simon Goldschmidt
1711 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1712 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1713 heap. This both prevents memory fragmentation and gives a higher speed
1714 at the cost of more memory consumption. Turned off by default.
1716 2007-06-21 Simon Goldschmidt
1717 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1718 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1719 int to be able to send a bigger buffer than 64K with one time (mainly
1720 used from lwip_send).
1722 2007-06-21 Simon Goldschmidt
1723 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1724 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1726 2007-06-21 Simon Goldschmidt
1727 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1728 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1729 changes on low memory or empty send-buffer.
1731 2007-06-18 Simon Goldschmidt
1732 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1733 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1734 used for ethernet and struct eth_addr already had a defined length of 6).
1736 2007-06-17 Simon Goldschmidt
1737 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1738 to disable UDP checksum generation on transmit.
1740 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1741 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1742 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1743 this macro to check "conn" parameter in api_msg.c functions.
1745 2007-06-11 Simon Goldschmidt
1746 * sockets.c, sockets.h: Added UDP lite support for sockets
1748 2007-06-10 Simon Goldschmidt
1749 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1750 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1753 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1754 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1755 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1756 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1757 (see TODO mark in the source code).
1759 2007-06-09 Simon Goldschmidt
1760 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1761 etharp_output() to match netif->output so etharp_output() can be used
1762 directly as netif->output to save one function call.
1764 2007-06-08 Simon Goldschmidt
1765 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1766 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1767 added initialization of those to ethernetif, slipif and loopif.
1769 2007-05-18 Simon Goldschmidt
1770 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1771 (defaulting to off for now) that can be set to 0 to send fragmented
1772 packets by passing PBUF_REFs down the stack.
1774 2007-05-23 Frédéric Bernon
1775 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1776 connections, such present in patch #5959.
1778 2007-05-23 Frédéric Bernon
1779 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1780 code in only one part...
1782 2007-05-18 Simon Goldschmidt
1783 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1784 elements to overflow. This is achieved by adding some bytes before and after
1785 each pool element (increasing their size, of course), filling them with a
1786 prominent value and checking them on freeing the element.
1787 Set it to 2 to also check every element in every pool each time memp_malloc()
1788 or memp_free() is called (slower but more helpful).
1790 2007-05-10 Simon Goldschmidt
1791 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1792 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1795 2007-05-11 Frédéric Bernon
1796 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1797 Include a function pointer instead of a table index in the message to reduce
1798 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1799 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1801 2007-05-10 Simon Goldschmidt
1802 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1803 \ extern "C" {' in all header files. Now you can write your application using
1804 the lwIP stack in C++ and simply #include the core files. Note I have left
1805 out the netif/ppp/*h header files for now, since I don't know which files are
1806 included by applications and which are for internal use only.
1808 2007-05-09 Simon Goldschmidt
1809 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1810 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1811 situations where some compilers might inline the copy and save a function
1812 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1814 2007-05-08 Simon Goldschmidt
1815 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1816 to be overriden in case the C-library malloc implementation is not protected
1817 against concurrent access.
1819 2007-05-04 Simon Goldschmidt (Atte Kojo)
1820 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1821 multiple packets to the same host.
1823 2007-05-04 Frédéric Bernon, Jonathan Larmour
1824 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1825 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1826 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1827 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1828 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1829 these fields are now renamed "addr" & "port".
1831 2007-04-11 Jonathan Larmour
1832 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1833 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1834 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1835 by the port in sys_arch.h if desired.
1837 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1838 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1839 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1840 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1842 2007-04-05 Frédéric Bernon
1843 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1845 2007-04-04 Simon Goldschmidt
1846 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1847 use this for and architecture-independent form to tell the compiler you intentionally
1848 are not using this variable. Can be overriden in cc.h.
1850 2007-03-28 Frédéric Bernon
1851 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1852 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1853 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1854 It will be used by DHCP to register a client hostname, but can also be use when you call
1857 2007-03-28 Frédéric Bernon
1858 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1859 initialize a network interface's flag with. It tell this interface is an ethernet
1860 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1861 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1863 2007-03-26 Frédéric Bernon, Jonathan Larmour
1864 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1865 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1866 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1867 is done in tcpip_init function.
1869 2007-03-22 Frédéric Bernon
1870 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1871 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1872 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1873 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1874 but never used. Fix msg_in.c with the correct #if test for a stat display.
1876 2007-03-21 Kieran Mansley
1877 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1878 Provides callback on netif up/down state change.
1880 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1881 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1882 ip.c, netif.h, tcpip.c, opt.h:
1883 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1884 filter per all network interfaces. Declare a new function in netif to enable to
1885 control the MAC filter (to reduce lwIP traffic processing).
1887 2007-03-11 Frédéric Bernon
1888 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1889 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1890 unless you know what you're doing (default are RFC1122 compliant). Note
1891 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1893 2007-03-08 Frédéric Bernon
1894 * tcp.h: Keepalive values can be configured at compile time, but don't change
1895 this unless you know what you're doing (default are RFC1122 compliant).
1897 2007-03-08 Frédéric Bernon
1898 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1899 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1900 on UDP sockets/netconn.
1902 2007-03-08 Simon Goldschmidt
1903 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1905 2007-03-06 Frédéric Bernon
1906 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1907 Implement SO_RCVTIMEO on UDP sockets/netconn.
1909 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1910 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1911 on the stack and remove the API msg type from memp
1913 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1914 * sockets.h, sockets.c: Move socket initialization to new
1915 lwip_socket_init() function.
1916 NOTE: this changes the API with ports. Ports will have to be
1917 updated to call lwip_socket_init() now.
1919 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1920 * api_lib.c: Use memcpy in netbuf_copy_partial.
1925 2008-03-17 Frédéric Bernon, Ed Kerekes
1926 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1927 some problems to fill the IP header on some targets, use now the
1928 ip.h macros to do it).
1930 2008-03-13 Frédéric Bernon
1931 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1932 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1933 TCP connection caused a crash. Note that using (lwip_)recvfrom
1934 like this is a bit slow and that using (lwip)getpeername is the
1935 good lwip way to do it (so, using recv is faster on tcp sockets).
1937 2008-03-12 Frédéric Bernon, Jonathan Larmour
1938 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1939 recv_raw() does not consume data", and the ping sample (with
1940 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1941 returned the IP payload, without the IP header).
1943 2008-03-04 Jonathan Larmour
1944 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1945 and/or warnings on some systems where mem_size_t and size_t differ.
1946 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1948 2008-03-04 Kieran Mansley (contributions by others)
1949 * Numerous small compiler error/warning fixes from contributions to
1950 mailing list after 1.3.0 release candidate made.
1952 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1953 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1955 2008-01-15 Kieran Mansley
1956 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1957 prevented from sending by a small send window, not just a zero
1960 2008-01-09 Jonathan Larmour
1961 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1962 conflict with Linux system headers.
1964 2008-01-06 Jonathan Larmour
1965 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1966 address entirely on receiving a DHCPNAK, and restarting discovery.
1968 2007-12-21 Simon Goldschmidt
1969 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1970 is not protected" by using new macros for interlocked access to modify/test
1971 netconn->recv_avail.
1973 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1974 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1976 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1977 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1978 of silly window avoidance and prevent lwIP from shrinking the window)
1980 2007-12-04 Simon Goldschmidt
1981 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1982 data packet was lost): add assert that all segment lists are empty in
1983 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1984 state from LAST_ACK in tcp_process
1986 2007-12-02 Simon Goldschmidt
1987 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1988 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1989 has to be set to 0 in lwipopts.h
1991 2007-12-02 Simon Goldschmidt
1992 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1993 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1994 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1995 This is a fix for thread-safety and allocates all items needed for a netconn
1996 when the netconn is created.
1998 2007-11-30 Simon Goldschmidt
1999 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2000 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2001 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2002 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2004 2007-11-27 Simon Goldschmidt
2005 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2006 letting ip_route only use netifs that are up.
2008 2007-11-27 Simon Goldschmidt
2009 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2010 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2011 sockets block most operations once they have seen a fatal error.
2013 2007-11-27 Simon Goldschmidt
2014 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2015 netif to send as an argument (to be able to send on netifs that are down).
2017 2007-11-26 Simon Goldschmidt
2018 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2021 2007-11-21 Simon Goldschmidt
2022 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2023 Fixed the nagle algorithm; nagle now also works for all raw API applications
2024 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2026 2007-11-12 Frédéric Bernon
2027 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2028 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2029 context in do_getaddr.
2031 2007-11-10 Simon Goldschmidt
2032 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2033 happen any time). Now the packet simply isn't enqueued when out of memory.
2035 2007-11-01 Simon Goldschmidt
2036 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2037 TCP_MSS if that is smaller) as long as no MSS option is received from the
2040 2007-11-01 Simon Goldschmidt
2041 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2042 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2043 sending our configured TCP_MSS instead of the one received).
2045 2007-11-01 Simon Goldschmidt
2046 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2047 calculated based on the configured TCP_MSS, not on the MSS option received
2050 2007-10-09 Simon Goldschmidt
2051 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2052 short and also was generated wrong if checksum coverage != tot_len;
2053 receive: checksum was calculated wrong if checksum coverage != tot_len
2055 2007-10-08 Simon Goldschmidt
2056 * mem.c: lfree was not updated in mem_realloc!
2058 2007-10-07 Frédéric Bernon
2059 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2060 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2061 this change cause an API breakage for netconn_addr, since a parameter
2062 type change. Any compiler should cause an error without any changes in
2063 yours netconn_peer calls (so, it can't be a "silent change"). It also
2064 reduce a little bit the footprint for socket layer (lwip_getpeername &
2065 lwip_getsockname use now a common lwip_getaddrname function since
2066 netconn_peer & netconn_addr have the same parameters).
2068 2007-09-20 Simon Goldschmidt
2069 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2070 by checking tcp_tw_pcbs also
2072 2007-09-19 Simon Goldschmidt
2073 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2075 2007-09-15 Mike Kleshov
2076 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2078 2007-09-06 Frédéric Bernon
2079 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2080 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2081 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2082 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2084 2007-08-30 Frédéric Bernon
2085 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2086 and fix some coding style.
2088 2007-08-28 Frédéric Bernon
2089 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2090 kind of packets. These packets are considered like Ethernet packets (payload
2091 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2092 are considered like IP packets (payload pointing to iphdr).
2094 2007-08-27 Frédéric Bernon
2095 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2096 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2097 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2099 2007-08-24 Kieran Mansley
2100 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2101 compiler (Paradigm C++)
2103 2007-08-09 Frédéric Bernon, Bill Florac
2104 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2105 Introduce IGMP_STATS to centralize statistics management.
2107 2007-08-09 Frédéric Bernon, Bill Florac
2108 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2109 packet on a udp pcb binded on an netif's IP address, and not on "any".
2111 2007-08-09 Frédéric Bernon, Bill Florac
2112 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2113 This is mainly on using lookup/lookfor, and some coding styles...
2115 2007-07-26 Frédéric Bernon (and "thedoctor")
2116 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2118 2007-07-25 Simon Goldschmidt
2119 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2120 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2121 (tcp_output is called again later from tcp timers).
2123 2007-07-25 Simon Goldschmidt
2124 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2125 copy_from_pbuf, which illegally modified the given pbuf.
2127 2007-07-25 Simon Goldschmidt
2128 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2129 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2131 2007-07-24 Simon Goldschmidt
2132 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2133 correct state (must be CLOSED).
2135 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2136 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2137 allocation. It now returns NULL.
2139 2007-07-13 Frédéric Bernon
2140 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2143 2007-07-13 Frédéric Bernon
2144 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2145 because current code doesn't follow rawapi.txt documentation.
2147 2007-07-13 Kieran Mansley
2148 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2149 out of sequence processing of received packets
2151 2007-07-03 Simon Goldschmidt
2152 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2153 assumption is made that this pbuf is in one piece (i.e. not chained). These
2154 assumptions clash with the possibility of converting to fully pool-based
2155 pbuf implementations, where PBUF_RAM pbufs might be chained.
2157 2007-07-03 Simon Goldschmidt
2158 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2159 when closing tcp netconns: removed conn->sem, less context switches when
2160 closing, both netconn_close and netconn_delete should safely close tcp
2163 2007-07-02 Simon Goldschmidt
2164 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2165 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2166 to cache ARP table indices with each pcb instead of single-entry cache for
2169 2007-07-02 Simon Goldschmidt
2170 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2171 warnings when assigning to smaller types.
2173 2007-06-28 Simon Goldschmidt
2174 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2176 2007-06-28 Simon Goldschmidt
2177 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2178 a segment contained chained pbufs)
2180 2007-06-28 Frédéric Bernon
2181 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2182 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2183 possible to define this macro in your own lwipopts.h to always use C library's
2184 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2186 2007-06-28 Frédéric Bernon
2187 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2188 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2189 in api_lib/api_msg (use pointers and not type with table, etc...)
2191 2007-06-26 Simon Goldschmidt
2192 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2194 2007-06-25 Simon Goldschmidt
2195 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2196 for udp packets with no matching pcb.
2198 2007-06-25 Simon Goldschmidt
2199 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2200 could get udp input packets if the remote side matched.
2202 2007-06-13 Simon Goldschmidt
2203 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2204 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2206 2007-06-13 Simon Goldschmidt
2207 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2208 -> netconn_new_..() does not allocate a new connection for unsupported
2211 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2212 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2213 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2215 2007-06-13 Frédéric Bernon, Matthias Weisser
2216 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2217 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2218 some macro names collision with some OS macros.
2220 2007-06-11 Simon Goldschmidt
2221 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2222 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2223 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2226 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2227 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2228 where TCP flags wasn't initialized in tcp_keepalive.
2230 2007-06-03 Simon Goldschmidt
2231 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2232 registered, p->payload was modified without modifying p->len if sending
2233 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2235 2007-06-03 Simon Goldschmidt
2236 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2237 re-used the input pbuf even if that didn't have enough space to include the
2238 link headers. Now the space is tested and a new pbuf is allocated for the
2239 echo response packet if the echo request pbuf isn't big enough.
2241 2007-06-01 Simon Goldschmidt
2242 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2244 2007-05-23 Frédéric Bernon
2245 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2246 allocated by do_listen if success) and netconn_accept errors handling. In
2247 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2248 by ASSERT, except for netconn_delete.
2250 2007-05-23 Frédéric Bernon
2251 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2252 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2253 directly close the recvmbox).
2255 2007-05-22 Simon Goldschmidt
2256 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2257 bound but unconnected (and non-listening) tcp_pcbs.
2259 2007-05-22 Frédéric Bernon
2260 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2261 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2262 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2263 like "sys_timeout" in their application threads.
2265 2007-05-22 Frédéric Bernon
2266 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2267 which parameters are used by which do_xxx function, and to avoid "misusing"
2268 parameters (patch #5938).
2270 2007-05-22 Simon Goldschmidt
2271 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2272 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2273 is only 8 bits wide. This affects the api, as there, the protocol was
2276 2007-05-18 Simon Goldschmidt
2277 * memp.c: addition to patch #5913: smaller pointer was returned but
2278 memp_memory was the same size -> did not save memory.
2280 2007-05-16 Simon Goldschmidt
2281 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2284 2007-05-16 Simon Goldschmidt
2285 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2286 as the one of the netif used for sending to prevent sending from old
2287 addresses after a netif address gets changed (partly fixes bug #3168).
2289 2007-05-16 Frédéric Bernon
2290 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2291 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2292 tcpip_init) because we have to be sure that network interfaces are already
2293 added (mac filter is updated only in igmp_init for the moment).
2295 2007-05-16 Simon Goldschmidt
2296 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2297 into sys_arch_sem_wait calls to prevent timers from running while waiting
2298 for the heap. This fixes bug #19167.
2300 2007-05-13 Simon Goldschmidt
2301 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2302 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2305 2007-05-07 Simon Goldschmidt
2306 * mem.c: Another attempt to fix bug #17922.
2308 2007-05-04 Simon Goldschmidt
2309 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2310 implementation so that it can be reused (don't allocate the target
2311 pbuf inside pbuf_copy()).
2313 2007-05-04 Simon Goldschmidt
2314 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2315 to save a little RAM (next pointer of memp is not used while not in pool).
2318 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2321 2007-04-23 Simon Goldschmidt
2322 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2323 in NULL reference for incoming TCP packets". Loopif has to be configured
2324 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2325 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2326 putting packets on a list that is fed to the stack by calling loopif_poll()
2327 (single-thread / NO_SYS / polling environment where e.g.
2328 netif->input() = ip_input).
2330 2007-04-17 Jonathan Larmour
2331 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2332 the difference between two u16_t's.
2333 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2334 MEMP_NUM_NETCONN in sockets.c right now.
2336 2007-04-12 Jonathan Larmour
2337 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2339 2007-04-12 Kieran Mansley
2340 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2341 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2343 2007-04-11 Simon Goldschmidt
2344 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2345 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2346 pbuf.c: removed functions no needed any more (by etharp).
2348 2007-04-11 Kieran Mansley
2349 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2350 "Constant is long" warnings with 16bit compilers. Contributed by
2351 avatar@mmlab.cse.yzu.edu.tw
2353 2007-04-05 Frédéric Bernon, Jonathan Larmour
2354 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2355 the mailbox is active". Now, the post is only done during a connect, and do_send,
2356 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2358 2007-04-03 Frédéric Bernon
2359 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2360 packets. See patch #5834.
2362 2007-03-30 Frédéric Bernon
2363 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2364 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2366 2007-03-30 Frédéric Bernon
2367 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2368 others environment defines (these were too "generic").
2370 2007-03-28 Frédéric Bernon
2371 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2372 result and can cause a crash. lwip_send now check netbuf_ref result.
2374 2007-03-28 Simon Goldschmidt
2375 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2376 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2377 defined. This is the way it should have been already (looking at
2380 2007-03-28 Kieran Mansley
2381 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2382 IP and TCP headers *and* physical link headers
2384 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2385 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2386 to send some garbage. It is not a definitive solution, but the patch does solve
2387 the problem for most cases.
2389 2007-03-22 Frédéric Bernon
2390 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2392 2007-03-22 Frédéric Bernon
2393 * api_lib.c: somes resources couldn't be freed if there was errors during
2394 netconn_new_with_proto_and_callback.
2396 2007-03-22 Frédéric Bernon
2397 * ethernetif.c: update netif->input calls to check return value. In older ports,
2398 it's a good idea to upgrade them, even if before, there could be another problem
2399 (access to an uninitialized mailbox).
2401 2007-03-21 Simon Goldschmidt
2402 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2403 by casting to unsigned).
2405 2007-03-21 Frédéric Bernon
2406 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2407 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2408 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2409 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2410 faster and more reliable communication between api_lib and tcpip.
2412 2007-03-21 Frédéric Bernon
2413 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2415 2007-03-21 Frédéric Bernon
2416 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2418 2007-03-21 Kieran Mansley
2419 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2422 2007-03-21 Kieran Mansley
2423 * Fix all uses of pbuf_header to check the return value. In some
2424 cases just assert if it fails as I'm not sure how to fix them, but
2425 this is no worse than before when they would carry on regardless
2428 2007-03-21 Kieran Mansley
2429 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2430 comment out missing header include in icmp.c
2432 2007-03-20 Frédéric Bernon
2433 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2434 synchronized with memp.h.
2436 2007-03-20 Frédéric Bernon
2437 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2438 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2439 network interfaces. Also fix a compiler warning.
2441 2007-03-20 Kieran Mansley
2442 * udp.c: Only try and use pbuf_header() to make space for headers if
2443 not a ROM or REF pbuf.
2445 2007-03-19 Frédéric Bernon
2446 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2449 2007-03-19 Frédéric Bernon
2450 * Remove unimplemented "memp_realloc" function from memp.h.
2452 2007-03-11 Simon Goldschmidt
2453 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2456 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2457 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2458 (missing `const' qualifier in socket functions), to get more compatible to
2459 standard POSIX sockets.
2461 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2462 * sockets.c: Add asserts inside bind, connect and sendto to check input
2463 parameters. Remove excessive set_errno() calls after get_socket(), because
2464 errno is set inside of get_socket(). Move last sock_set_errno() inside
2467 2007-03-09 Simon Goldschmidt
2468 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2469 was allocated too small.
2471 2007-03-06 Simon Goldschmidt
2472 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2473 the stack from concurrent access.
2475 2007-03-06 Frédéric Bernon, Dmitry Potapov
2476 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2477 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2479 2007-03-06 Simon Goldschmidt
2480 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2481 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2483 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2484 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2485 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2486 Allow to do ARP processing for incoming packets inside tcpip_thread
2487 (protecting ARP layer against concurrent access). You can also disable
2488 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2489 Older ports have to use tcpip_ethinput.
2491 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2492 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2493 from pointer target type"
2495 2007-03-05 Frédéric Bernon
2496 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2497 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2499 2007-03-04 Frédéric Bernon
2500 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2503 2007-03-04 Frédéric Bernon
2504 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2506 The api_msg struct stay on the stack (not moved to netconn struct).
2508 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2509 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2510 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2511 Also fixed cast warning in pbuf_alloc()
2513 2007-03-04 Simon Goldschmidt
2514 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2515 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2517 2007-03-03 Frédéric Bernon
2518 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2519 It is static, and never used in udp.c except udp_init().
2521 2007-03-02 Simon Goldschmidt
2522 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2523 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2524 initialized before tcpip_thread is running (e.g. before OS is started)
2526 2007-03-02 Frédéric Bernon
2527 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2530 2007-02-28 Kieran Mansley
2531 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2532 outside the region of the pbuf by pbuf_header()
2534 2007-02-28 Kieran Mansley
2535 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2536 when supplied timeout is also non-zero
2540 2006-12-05 Leon Woestenberg
2541 * CHANGELOG: Mention STABLE-1.2.0 release.
2545 2006-12-01 Christiaan Simons
2546 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2547 Note this is a workaround. Currently I have no other options left.
2549 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2550 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2551 to include/lwip/opt.h.
2552 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2553 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2554 * opt.h: Add above new options.
2556 2006-08-18 Christiaan Simons
2557 * tcp_{in,out}.c: added SNMP counters.
2558 * ipv4/ip.c: added SNMP counters.
2559 * ipv4/ip_frag.c: added SNMP counters.
2561 2006-08-08 Christiaan Simons
2562 * etharp.{c,h}: added etharp_find_addr() to read
2563 (stable) ethernet/IP address pair from ARP table
2565 2006-07-14 Christiaan Simons
2566 * mib_structs.c: added
2567 * include/lwip/snmp_structs.h: added
2568 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2570 2006-07-06 Christiaan Simons
2571 * snmp/asn1_{enc,dec}.c added
2573 * snmp/msg_{in,out}.c added
2574 * include/lwip/snmp_asn1.h added
2575 * include/lwip/snmp_msg.h added
2576 * doc/snmp_agent.txt added
2578 2006-03-29 Christiaan Simons
2579 * inet.c, inet.h: Added platform byteswap support.
2580 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2581 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2585 2006-11-30 Christiaan Simons
2586 * dhcp.c: Fixed false triggers of request_timeout.
2588 2006-11-28 Christiaan Simons
2589 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2591 2006-10-11 Christiaan Simons
2592 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2593 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2594 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2595 identifier from 170 to 136 (bug #17574).
2597 2006-10-10 Christiaan Simons
2598 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2600 2006-08-17 Christiaan Simons
2601 * udp.c: Fixed bug #17200, added check for broadcast
2602 destinations for PCBs bound to a unicast address.
2604 2006-08-07 Christiaan Simons
2605 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2607 2006-06-27 Christiaan Simons
2608 * api_msg.c: Applied patch for cold case (bug #11135).
2609 In accept_function() ensure newconn->callback is always initialized.
2611 2006-06-15 Christiaan Simons
2612 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2613 facilitate printing of mem_size_t and u16_t statistics.
2615 2006-06-14 Christiaan Simons
2616 * api_msg.c: Applied patch #5146 to handle allocation failures
2617 in accept() by Kevin Lawson.
2619 2006-05-26 Christiaan Simons
2620 * api_lib.c: Removed conn->sem creation and destruction
2621 from netconn_write() and added sys_sem_new to netconn_new_*.
2625 2006-03-03 Christiaan Simons
2626 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2627 access and added pbuf_alloc() return value checks.
2629 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2630 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2631 now handled by the checksum routine properly.
2633 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2634 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2635 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2637 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2638 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2639 submitted by Mitrani Hiroshi.
2641 2005-12-15 Christiaan Simons
2642 * inet.c: Disabled the added summing routine to preserve code space.
2644 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2645 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2646 Added Curt McDowell's optimized checksumming routine for future
2647 inclusion. Need to create test case for unaliged, aligned, odd,
2648 even length combination of cases on various endianess machines.
2650 2005-12-09 Christiaan Simons
2651 * inet.c: Rewrote standard checksum routine in proper portable C.
2653 2005-11-25 Christiaan Simons
2654 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2655 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2656 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2658 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2659 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2660 routine by Peter Jolasson.
2661 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2663 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2664 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2665 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2667 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2668 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2670 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2671 * udp.c: UDP pcb->recv() was called even when it was NULL.
2675 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2676 * etharp.*: Disabled multiple packets on the ARP queue.
2677 This clashes with TCP queueing.
2679 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2680 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2681 Halved the ARP period, doubled the period counts.
2682 ETHARP_MAX_PENDING now should be at least 2. This prevents
2683 the counter from reaching 0 right away (which would allow
2684 too little time for ARP responses to be received).
2686 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2687 * dhcp.c: Decline messages were not multicast but unicast.
2688 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2689 Do not try hard to insert arbitrary packet's source address,
2690 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2691 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2692 querying an address will see it appear in the cache (DHCP could
2693 suffer from this when a server invalidly gave an in-use address.)
2694 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2695 comparing network addresses (identifiers), not the network masks
2697 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2698 IP address actually belongs to the network of the given interface.
2700 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2701 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2705 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2706 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2707 even if one is already pending, if the rcv_wnd is above a threshold
2708 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2709 delayed ACK in order to open the window if the stack is only receiving data.
2711 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2712 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2714 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2715 * etharp.c: Make sure the first pbuf queued on an ARP entry
2716 is properly ref counted.
2718 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2719 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2720 warnings about comparison.
2721 * pbuf.c: Stopped compiler complaining of empty if statement
2722 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2723 * tcp.c: Stopped compiler complaining of empty if statement
2724 when LWIP_DEBUGF() empty.
2725 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2726 * inet.c: Added a couple of casts to quiet the compiler.
2727 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2729 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2730 * inet.c: Made data types consistent in inet_ntoa().
2731 Added casts for return values of checksum routines, to pacify compiler.
2732 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2733 Small corrections to some debugging statements, to pacify compiler.
2735 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2736 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2737 * ethernetif.c Updated low_level_output() to match prototype for
2738 netif->linkoutput and changed low_level_input() similarly for consistency.
2739 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2740 of raw_recv() in raw.h and so avoid compiler error.
2741 * sockets.c: Added trivial (int) cast to keep compiler happier.
2742 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2748 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2749 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2750 your cc.h file defines this either 1 or 0. If non-defined,
2752 * .c: Added <string.h> and <errno.h> includes where used.
2753 * etharp.c: Made some array indices unsigned.
2755 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2756 * netif.*: Added netif_set_up()/down().
2757 * dhcp.c: Changes to restart program flow.
2759 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2760 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2761 single-pass lookup for different candidates. Should exploit locality.
2763 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2764 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2765 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2766 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2767 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2771 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2772 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2773 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2774 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2775 is to prefix the 14-bit Ethernet headers with two padding bytes.
2777 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2778 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2779 * etharp.c: Fixed the case where the packet that initiates the ARP request
2780 is not queued, and gets lost. Fixed the case where the packets destination
2781 address is already known; we now always queue the packet and perform an ARP
2788 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2789 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2790 * Fixed two possible NULL references in rare cases.
2796 * Fixed DHCP which did not include the IP address in DECLINE messages.
2800 * etharp.c has been hauled over a bit.
2806 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2807 * Packets sent from ARP queue had invalid source hardware address.
2811 * Pass-by ARP requests do now update the cache.
2815 * No longer dependent on ctype.h.
2816 * New socket options.
2817 * Raw IP pcb support.
2823 * Some debug formatters and casts fixed.
2824 * Numereous fixes in PPP.
2828 * DEBUGF now is LWIP_DEBUGF
2829 * pbuf_dechain() has been re-enabled.
2830 * Mentioned the changed use of CVS branches in README.
2836 * Fixed pool pbuf memory leak in pbuf_alloc().
2837 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2838 Reported by Savin Zlobec.
2840 * PBUF_POOL chains had their tot_len field not set for non-first
2841 pbufs. Fixed in pbuf_alloc().
2845 * Added PPP stack contributed by Marc Boucher
2849 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2851 * ARP queueuing now queues the latest packet instead of the first.
2852 This is the RFC recommended behaviour, but can be overridden in
2859 * TCP has been fixed to deal with the new use of the pbuf->ref
2862 * DHCP dhcp_inform() crash bug fixed.
2866 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2867 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2868 Implemented by David Haas.
2874 * The packet buffer implementation has been enhanced to support
2875 zero-copy and copy-on-demand for packet buffers which have their
2876 payloads in application-managed memory.
2877 Implemented by David Haas.
2879 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2880 if an outgoing packet can be directly sent on the link, or perform
2881 a copy-on-demand when necessary.
2883 The application can safely assume the packet is sent, and the RAM
2884 is available to the application directly after calling udp_send()
2885 or similar function.
2889 * ARP_QUEUEING should now correctly work for all cases, including
2891 Implemented by Leon Woestenberg.
2895 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2896 to a '0.0.0.0' IP address.
2898 * The packet buffer implementation is changed. The pbuf->ref counter
2899 meaning has changed, and several pbuf functions have been
2900 adapted accordingly.
2902 * netif drivers have to be changed to set the hardware address length field
2903 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2904 See the contrib/ports/c16x cs8900 driver as a driver example.
2906 * netif's have a dhcp field that must be initialized to NULL by the driver.
2907 See the contrib/ports/c16x cs8900 driver as a driver example.
2909 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2910 logged in CVS but have not been explained here.
2912 (0.5.3) Changes since version 0.5.2
2916 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2917 threads because it wasn't protected by semaphores.
2921 * struct ip_addr now packed.
2923 * The name of the time variable in arp.c has been changed to ctime
2924 to avoid conflicts with the time() function.
2926 (0.5.2) Changes since version 0.5.1
2930 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2934 * A bug in tcp_parseopt() could cause the stack to hang because of a
2935 malformed TCP option.
2937 * The address of new connections in the accept() function in the BSD
2938 socket library was not handled correctly.
2940 * pbuf_dechain() did not update the ->tot_len field of the tail.
2942 * Aborted TCP connections were not handled correctly in all
2947 * All protocol header structs are now packed.
2949 * The ->len field in the tcp_seg structure now counts the actual
2950 amount of data, and does not add one for SYN and FIN segments.
2952 (0.5.1) Changes since version 0.5.0
2956 * Possible to run as a user process under Linux.
2958 * Preliminary support for cross platform packed structs.
2960 * ARP timer now implemented.
2964 * TCP output queue length was badly initialized when opening
2967 * TCP delayed ACKs were not sent correctly.
2969 * Explicit initialization of BSS segment variables.
2971 * read() in BSD socket library could drop data.
2973 * Problems with memory alignment.
2975 * Situations when all TCP buffers were used could lead to
2978 * TCP MSS option wasn't parsed correctly.
2980 * Problems with UDP checksum calculation.
2982 * IP multicast address tests had endianess problems.
2984 * ARP requests had wrong destination hardware address.
2988 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2990 * A ->linkoutput() member was added to struct netif.
2992 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2994 * ntoh* macros are now null definitions for big endian CPUs.
2996 (0.5.0) Changes since version 0.4.2
3000 * Redesigned operating system emulation layer to make porting easier.
3002 * Better control over TCP output buffers.
3004 * Documenation added.
3008 * Locking issues in buffer management.
3010 * Bugfixes in the sequential API.
3012 * IP forwarding could cause memory leakage. This has been fixed.
3016 * Directory structure somewhat changed; the core/ tree has been
3019 (0.4.2) Changes since version 0.4.1
3023 * Experimental ARP implementation added.
3025 * Skeleton Ethernet driver added.
3027 * Experimental BSD socket API library added.
3031 * In very intense situations, memory leakage could occur. This has
3036 * Variables named "data" and "code" have been renamed in order to
3037 avoid name conflicts in certain compilers.
3039 * Variable++ have in appliciable cases been translated to ++variable
3040 since some compilers generate better code in the latter case.
3042 (0.4.1) Changes since version 0.4
3046 * TCP: Connection attempts time out earlier than data
3047 transmissions. Nagle algorithm implemented. Push flag set on the
3048 last segment in a burst.
3050 * UDP: experimental support for UDP-Lite extensions.
3054 * TCP: out of order segments were in some cases handled incorrectly,
3055 and this has now been fixed. Delayed acknowledgements was broken
3056 in 0.4, has now been fixed. Binding to an address that is in use
3057 now results in an error. Reset connections sometimes hung an
3058 application; this has been fixed.
3060 * Checksum calculation sometimes failed for chained pbufs with odd
3061 lengths. This has been fixed.
3063 * API: a lot of bug fixes in the API. The UDP API has been improved
3064 and tested. Error reporting and handling has been
3065 improved. Logical flaws and race conditions for incoming TCP
3066 connections has been found and removed.
3068 * Memory manager: alignment issues. Reallocating memory sometimes
3069 failed, this has been fixed.
3071 * Generic library: bcopy was flawed and has been fixed.
3075 * API: all datatypes has been changed from generic ones such as
3076 ints, to specified ones such as u16_t. Functions that return
3077 errors now have the correct type (err_t).
3079 * General: A lot of code cleaned up and debugging code removed. Many
3080 portability issues have been fixed.
3082 * The license was changed; the advertising clause was removed.
3086 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3087 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3090 (0.4) Changes since version 0.3.1
3092 * Memory management has been radically changed; instead of
3093 allocating memory from a shared heap, memory for objects that are
3094 rapidly allocated and deallocated is now kept in pools. Allocation
3095 and deallocation from those memory pools is very fast. The shared
3096 heap is still present but is used less frequently.
3098 * The memory, memory pool, and packet buffer subsystems now support
3099 4-, 2-, or 1-byte alignment.
3101 * "Out of memory" situations are handled in a more robust way.
3103 * Stack usage has been reduced.
3105 * Easier configuration of lwIP parameters such as memory usage,
3106 TTLs, statistics gathering, etc. All configuration parameters are
3107 now kept in a single header file "lwipopts.h".
3109 * The directory structure has been changed slightly so that all
3110 architecture specific files are kept under the src/arch
3113 * Error propagation has been improved, both in the protocol modules
3116 * The code for the RTXC architecture has been implemented, tested
3119 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3120 the Internet checksum modules.
3122 * Bugs related to porting between a 32-bit and a 16-bit architecture
3123 have been found and corrected.
3125 * The license has been changed slightly to conform more with the
3126 original BSD license, including the advertisement clause.
3128 (0.3.1) Changes since version 0.3
3130 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3131 RAM never returned the RAM when the pbuf was deallocated.
3133 * TCP congestion control, window updates and retransmissions did not
3134 work correctly. This has now been fixed.
3136 * Bugfixes in the API.
3138 (0.3) Changes since version 0.2
3140 * New and improved directory structure. All include files are now
3141 kept in a dedicated include/ directory.
3143 * The API now has proper error handling. A new function,
3144 netconn_err(), now returns an error code for the connection in
3147 * Improvements in the memory management subsystem. The system now
3148 keeps a pointer to the lowest free memory block. A new function,
3149 mem_malloc2() tries to allocate memory once, and if it fails tries
3150 to free some memory and retry the allocation.
3152 * Much testing has been done with limited memory
3153 configurations. lwIP now does a better job when overloaded.
3155 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3157 * Many bugfixes in the TCP code:
3159 - Fixed a bug in tcp_close().
3161 - The TCP receive window was incorrectly closed when out of
3162 sequence segments was received. This has been fixed.
3164 - Connections are now timed-out of the FIN-WAIT-2 state.
3166 - The initial congestion window could in some cases be too
3167 large. This has been fixed.
3169 - The retransmission queue could in some cases be screwed up. This
3172 - TCP RST flag now handled correctly.
3174 - Out of sequence data was in some cases never delivered to the
3175 application. This has been fixed.
3177 - Retransmitted segments now contain the correct acknowledgment
3178 number and advertised window.
3180 - TCP retransmission timeout backoffs are not correctly computed
3181 (ala BSD). After a number of retransmissions, TCP now gives up
3184 * TCP connections now are kept on three lists, one for active
3185 connections, one for listening connections, and one for
3186 connections that are in TIME-WAIT. This greatly speeds up the fast
3187 timeout processing for sending delayed ACKs.
3189 * TCP now provides proper feedback to the application when a
3190 connection has been successfully set up.
3192 * More comments have been added to the code. The code has also been
3193 somewhat cleaned up.
3195 (0.2) Initial public release.