5 * [Enter new changes just after this line - do not remove this line]
9 2011-09-27: Simon Goldschmidt
10 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
11 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
13 2011-09-21: Simon Goldschmidt
14 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
15 send (TCP only, bug #33820)
17 2011-09-21: Simon Goldschmidt
18 * init.c: Converted runtime-sanity-checks into compile-time checks that can
19 be disabled (since runtime checks can often not be seen on embedded targets)
21 2011-09-11: Simon Goldschmidt
22 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
23 to get a clear separation of which functions an application or port may use
26 2011-09-11: Simon Goldschmidt
27 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
28 initial local TCP/UDP ports (so that different port ranges are used after
29 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
31 2011-09-03: Simon Goldschmidt
32 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
34 2011-08-24: Simon Goldschmidt
35 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
37 2011-07-26: Simon Goldschmidt
38 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
39 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
41 2011-07-21: Simon Goldschmidt (patch by hanhui)
42 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
43 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
44 Also added code to allow ip_forward() to forward non-broadcast packets to
45 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
47 2011-07-21: Simon Goldschmidt
48 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
49 ioctl/FIONREAD return the size of the next pending datagram.
51 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
52 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
55 2011-05-25: Simon Goldschmidt
56 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
57 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
58 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
59 code so that the code is more readable.
61 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
62 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
63 Ivan! (this is work in progress: we're just post release anyway :-)
65 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
66 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
72 2011-10-13: Simon Goldschmidt
73 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
74 used and not all protocols are enabled
76 2011-10-12: Simon Goldschmidt
77 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
79 2011-10-09: Simon Goldschmidt
80 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
81 byte value when pcb->unacked != NULL
83 2011-10-09: Simon Goldschmidt
84 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
86 2011-09-27: Simon Goldschmidt
87 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
89 2011-09-27: Simon Goldschmidt
90 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
92 2011-09-27: Simon Goldschmidt
93 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
95 2011-09-24: Simon Goldschmidt
96 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
98 2011-09-23: Simon Goldschmidt
99 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
100 the last packet including FIN can lose data
102 2011-09-22: Simon Goldschmidt
103 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
106 2011-09-21: Simon Goldschmidt
107 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
110 2011-09-20: Simon Goldschmidt
111 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
113 2011-09-11: Simon Goldschmidt
114 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
117 2011-09-09: Simon Goldschmidt
118 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
121 2011-09-03: Simon Goldschmidt
122 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
123 is aggregated and sent to application
125 2011-09-01: Simon Goldschmidt
126 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
129 2011-09-01: Simon Goldschmidt
130 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
132 2011-08-24: Simon Goldschmidt
133 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
135 2011-08-24: Simon Goldschmidt
136 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
137 accept() on UDP connections
139 2011-08-24: Simon Goldschmidt
140 * sockets.h: fixed bug #34057 socklen_t should be a typedef
142 2011-08-24: Simon Goldschmidt
143 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
145 2011-08-24: Simon Goldschmidt
146 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
148 2011-08-24: Simon Goldschmidt
149 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
151 2011-08-22: Simon Goldschmidt
152 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
153 merely prevents nagle from not transmitting fast after closing.)
155 2011-07-22: Simon Goldschmidt
156 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
157 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
158 lwip_send() sends as much as possible for non-blocking sockets
160 2011-07-22: Simon Goldschmidt
161 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
162 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
163 at regular intervals from main level.
165 2011-07-21: Simon Goldschmidt
166 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
167 sending an ARP request when an ARP entry is used in the last minute before
170 2011-07-04: Simon Goldschmidt
171 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
173 2011-06-26: Simon Goldschmidt
174 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
175 updating its documentation only.
177 2011-06-26: Simon Goldschmidt
178 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
181 2011-06-26: Simon Goldschmidt
182 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
190 2011-03-27: Simon Goldschmidt
191 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
192 calculate it in tcp_zero_window_probe (the only place where it was used).
194 2010-11-21: Simon Goldschmidt
195 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
198 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
199 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
200 IP_MULTICAST_LOOP at socket- and raw-API level.
202 2010-06-16: Simon Goldschmidt
203 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
204 link-layer-addressed UDP traffic to be received while a netif is down (just
205 like DHCP during configuration)
207 2010-05-22: Simon Goldschmidt
208 * many many files: bug #27352: removed packing from ip_addr_t, the packed
209 version is now only used in protocol headers. Added global storage for
210 current src/dest IP address while in input functions.
212 2010-05-16: Simon Goldschmidt
213 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
214 calculation (and use them throughout the stack where applicable)
216 2010-05-16: Simon Goldschmidt
217 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
218 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
220 2010-05-16: Simon Goldschmidt
221 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
222 MEMP pool instead of the heap
224 2010-05-13: Simon Goldschmidt
225 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
226 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
227 packets to more than one pcb.
229 2010-05-02: Simon Goldschmidt
230 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
231 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
233 2010-04-30: Simon Goldschmidt
234 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
235 take a precalculated checksum, added pbuf_fill_chksum() to copy data
236 into a pbuf and at the same time calculating the checksum for that data
238 2010-04-29: Simon Goldschmidt
239 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
240 2-byte-aligned IP addresses and MAC addresses
242 2010-04-28: Patch by Bill Auerbach
243 * ip.c: Inline generating IP checksum to save a function call
245 2010-04-14: Simon Goldschmidt
246 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
247 tcpip_thread processes messages or timeouts to implement a watchdog.
249 2010-03-28: Simon Goldschmidt
250 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
251 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
253 2010-03-27: Simon Goldschmidt
254 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
255 etharp_query to prevent unnecessary function calls (inspired by
258 2010-03-20: Simon Goldschmidt
259 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
260 since the linker cannot do this automatically to save space.
262 2010-03-20: Simon Goldschmidt
263 * opt.h, etharp.c/.h: Added support for static ARP table entries
265 2010-03-14: Simon Goldschmidt
266 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
267 when creating TCP segments, not when (re-)transmitting them.
269 2010-03-07: Simon Goldschmidt
270 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
271 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
272 This should speed up receiving data on sockets as the select code in
273 event_callback is only executed when select is waiting.
275 2010-03-06: Simon Goldschmidt
276 * tcp_out.c: task #7013 (Create option to have all packets delivered to
277 netif->output in one piece): Always copy to try to create single pbufs
280 2010-03-06: Simon Goldschmidt
281 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
282 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
283 for tcp netconns to receive pbufs, not netbufs; use that function
286 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
287 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
288 Work on tcp_enqueue: Don't waste memory when chaining segments,
289 added option TCP_OVERSIZE to prevent creating many small pbufs when
290 calling tcp_write with many small blocks of data. Instead, pbufs are
291 allocated larger than needed and the space is used for later calls to
294 2010-02-21: Simon Goldschmidt
295 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
298 2010-02-21: Simon Goldschmidt
299 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
300 implementation of tcp to make API usage cleare to application programmers
302 2010-02-14: Simon Goldschmidt/Stephane Lesage
303 * ip_addr.h: Improved some defines working on ip addresses, added faster
304 macro to copy addresses that cannot be NULL
306 2010-02-13: Simon Goldschmidt
307 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
308 blocking send operation)
310 2010-02-12: Simon Goldschmidt
311 * sockets.c/.h: Added a minimal version of posix fctl() to have a
312 standardised way to set O_NONBLOCK for nonblocking sockets.
314 2010-02-12: Simon Goldschmidt
315 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
316 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
317 and dhcp work with user-allocated structs instead of callin mem_malloc
319 2010-02-12: Simon Goldschmidt/Jeff Barber
320 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
321 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
323 2010-02-12: Simon Goldschmidt
324 * sys layer: task #10139 (Prefer statically allocated memory): converted
325 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
326 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
327 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
328 to let sys.h use binary semaphores instead of mutexes - as before)
330 2010-02-09: Simon Goldschmidt (Simon Kallweit)
331 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
332 (Restart system timeout handling)
334 2010-02-09: Simon Goldschmidt
335 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
336 netif.c) - loopif does not have to be created by the port any more,
337 just define LWIP_HAVE_LOOPIF to 1.
339 2010-02-08: Simon Goldschmidt
340 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
341 inet_ntoa_r/ipaddr_ntoa_r
343 2010-02-08: Simon Goldschmidt
344 * netif.h: Added netif_s/get_igmp_mac_filter() macros
346 2010-02-05: Simon Goldschmidt
347 * netif.h: Added function-like macros to get/set the hostname on a netif
349 2010-02-04: Simon Goldschmidt
350 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
351 make changing the actual implementation behind the typedef easier.
353 2010-02-01: Simon Goldschmidt
354 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
355 for allocating memory when getaddrinfo() is called.
357 2010-01-31: Simon Goldschmidt
358 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
359 them once instead of parsing for every option. This also removes
360 the need for mem_malloc from dhcp_recv and makes it possible to
361 correctly retrieve the BOOTP file.
363 2010-01-30: simon Goldschmidt
364 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
367 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
368 * api.h, api_msg.c, sockets.c: Added except set support in select
371 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
372 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
373 Add non-blocking support for connect (partly from patch #6860),
374 plus many cleanups in socket & netconn API.
376 2010-01-27: Simon Goldschmidt
377 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
378 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
380 2010-01-26: Simon Goldschmidt
381 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
383 2010-01-14: Simon Goldschmidt
384 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
385 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
387 2010-01-13: Simon Goldschmidt
388 * mem.c: The heap now may be moved to user-defined memory by defining
389 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
390 (patch #6966 and bug #26133)
392 2010-01-10: Simon Goldschmidt (Bill Auerbach)
393 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
396 2010-01-10: Simon Goldschmidt
397 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
398 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
400 2009-12-31: Simon Goldschmidt
401 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
402 added timers.c/.h: Separated timer implementation from semaphore/mbox
403 implementation, moved timer implementation to timers.c/.h, timers are
404 now only called from tcpip_thread or by explicitly checking them.
407 2009-12-27: Simon Goldschmidt
408 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
409 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
414 2011-04-20: Simon Goldschmidt
415 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
417 2011-04-13: Simon Goldschmidt
418 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
419 using ports in the IANA private/dynamic range (49152 through 65535).
421 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
422 * etharp.h/.c: Fixed broken VLAN support.
424 2011-03-27: Simon Goldschmidt
425 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
426 pcbs) by checking if the pcb was bound (local_port != 0).
428 2011-03-27: Simon Goldschmidt
429 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
431 2011-03-27: Simon Goldschmidt
432 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
433 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
435 2011-03-27: Simon Goldschmidt
436 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
437 is present never times out) by starting retransmission timer before checking
440 2011-03-22: Simon Goldschmidt
441 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
442 calling sio_read_abort() if the file descriptor is valid.
444 2011-03-14: Simon Goldschmidt
445 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
446 more than once can render a socket useless) since it mainly involves changing
447 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
449 2011-03-13: Simon Goldschmidt
450 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
451 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
452 use EALRADY instead of -1
454 2011-03-13: Simon Goldschmidt
455 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
456 connection has been aborted by err_tcp (since this is not a normal closing
459 2011-03-13: Simon Goldschmidt
460 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
461 with pcb->state != CLOSED
463 2011-02-17: Simon Goldschmidt
464 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
467 2011-02-17: Simon Goldschmidt
468 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
470 2011-01-24: Simon Goldschmidt
471 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
473 2010-12-02: Simon Goldschmidt
474 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
476 2010-11-23: Simon Goldschmidt
477 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
478 LWIP_SO_RCVBUF and ioctl/FIONREAD.
480 2010-11-23: Simon Goldschmidt
481 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
482 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
484 2010-11-23: Simon Goldschmidt
485 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
486 refusing 'refused_data' again.
488 2010-11-22: Simon Goldschmidt
489 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
490 after a successful nonblocking connection.
492 2010-11-22: Simon Goldschmidt
493 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
494 must be sent link-local
496 2010-11-22: Simon Goldschmidt
497 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
500 2010-11-20: Simon Goldschmidt
501 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
503 2010-11-20: Simon Goldschmidt
504 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
505 resemble other stacks.
507 2010-11-20: Simon Goldschmidt
508 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
509 no-copy TCP writes will never succeed.
511 2010-11-20: Simon Goldschmidt
512 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
513 not match documentation: return ERR_ARG instead of ERR_VAL if not
514 initialized or wrong argument.
516 2010-10-20: Simon Goldschmidt
517 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
519 2010-10-05: Simon Goldschmidt
520 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
521 replugging the network cable after an AutoIP address was assigned.
523 2010-08-10: Simon Goldschmidt
524 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
526 2010-08-03: Simon Goldschmidt
527 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
529 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
530 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
531 endian architectures)
533 2010-07-28: Simon Goldschmidt
534 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
537 2010-07-27: Simon Goldschmidt
538 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
539 harm but never did anything
541 2010-07-21: Simon Goldschmidt
542 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
545 2010-07-16: Kieran Mansley
546 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
548 2010-07-10: Simon Goldschmidt
549 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
551 2010-06-30: Simon Goldschmidt
552 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
555 2010-06-28: Kieran Mansley
556 * timers.c remove unportable printing of C function pointers
558 2010-06-24: Simon Goldschmidt
559 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
560 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
562 2010-06-24: Simon Goldschmidt
563 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
564 implemented shutdown at socket level.
566 2010-06-21: Simon Goldschmidt
567 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
568 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
569 custom pbufs that reference other (original) pbufs. Additionally set
570 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
572 2010-06-15: Simon Goldschmidt
573 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
575 2010-06-14: Simon Goldschmidt
576 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
578 2010-06-12: Simon Goldschmidt
579 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
582 2010-05-17: Simon Goldschmidt
583 * netdb.c: Correctly NULL-terminate h_addr_list
585 2010-05-16: Simon Goldschmidt
586 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
587 "symbol already defined" i.e. when linking to winsock
589 2010-05-05: Simon Goldschmidt
590 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
593 2010-04-21: Simon Goldschmidt
594 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
597 2010-03-28: Luca Ceresoli
598 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
600 2010-03-27: Luca Ceresoli
601 * mib2.c: patch #7130: remove meaningless const qualifiers
603 2010-03-26: Simon Goldschmidt
604 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
606 2010-03-26: Simon Goldschmidt
607 * various files: Fixed compiling with different options disabled (TCP/UDP),
608 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
610 2010-03-25: Simon Goldschmidt
611 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
613 2010-03-25: Simon Goldschmidt
614 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
615 overrunning our rcv_wnd in ooseq case.
617 2010-03-22: Simon Goldschmidt
618 * tcp.c: tcp_listen() did not copy the pcb's prio.
620 2010-03-19: Simon Goldschmidt
621 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
623 2010-03-14: Simon Goldschmidt
624 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
625 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
626 and basing PBUF_LINK_HLEN on it.
628 2010-03-08: Simon Goldschmidt
629 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
630 when assiging routable address): when checking incoming packets and
631 aborting existing connection on address change, filter out link-local
634 2010-03-06: Simon Goldschmidt
635 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
637 2010-03-06: Simon Goldschmidt
638 * ipv4/ip.c: Don't try to forward link-local addresses
640 2010-03-06: Simon Goldschmidt
641 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
644 2010-03-05: Simon Goldschmidt
645 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
648 2010-03-05: Simon Goldschmidt
649 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
650 into multiple calls to tcp_write.
652 2010-02-21: Simon Goldschmidt
653 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
654 the implementation of DNS_USES_STATIC_BUF==1)
656 2010-02-20: Simon Goldschmidt
657 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
658 close() vs. shutdown(). Now the application does not get any more
659 recv callbacks after calling tcp_close(). Added tcp_shutdown().
661 2010-02-19: Simon Goldschmidt
662 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
663 confusion with realloc()
665 2010-02-15: Simon Goldschmidt/Stephane Lesage
666 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
669 2010-02-14: Simon Goldschmidt
670 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
671 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
672 admin-status of a netif are up
674 2010-02-14: Simon Goldschmidt
675 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
676 reception and is not really necessary
678 2010-02-14: Simon Goldschmidt
679 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
680 request was directed as us (RFC 826, Packet Reception), otherwise
681 only update existing entries; internalized some functions
683 2010-02-14: Simon Goldschmidt
684 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
685 disabled on netif used for PPPoE) by adding a new netif flag
686 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
687 device but prevents usage of ARP (so that ethernet_input can be used
690 2010-02-12: Simon Goldschmidt
691 * netif.c: netif_set_link_up/down: only do something if the link state
694 2010-02-12: Simon Goldschmidt/Stephane Lesage
695 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
698 2010-02-12: Simon Goldschmidt
699 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
701 2010-02-09: Simon Goldschmidt
702 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
703 (recv() makes receive window update for data that wasn't received by
706 2010-02-09: Simon Goldschmidt/Stephane Lesage
707 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
708 or any netconn_recv() error)
710 2010-02-09: Simon Goldschmidt
711 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
713 2010-02-09: Simon Goldschmidt
714 * netif.c: For loopback packets, adjust the stats- and snmp-counters
715 for the loopback netif.
717 2010-02-08: Simon Goldschmidt
718 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
719 since they are not used anywhere else.
721 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
722 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
723 (patch from bug #28798)
725 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
726 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
727 another bug when LWIP_RAND() returns zero.
729 2010-02-04: Simon Goldschmidt
730 * nearly every file: Use macros defined in ip_addr.h (some of them new)
731 to work with IP addresses (preparation for bug #27352 - Change ip_addr
732 from struct to typedef (u32_t) - and better code).
734 2010-01-31: Simon Goldschmidt
735 * netif.c: Don't call the link-callback from netif_set_up/down() since
736 this invalidly retriggers DHCP.
738 2010-01-29: Simon Goldschmidt
739 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
740 portability file inet.h and its contents from the stack: moved htonX-
741 functions to def.h (and the new def.c - they are not ipv4 dependent),
742 let inet.h depend on ip_addr.h and not the other way round.
743 This fixes bug #28732.
745 2010-01-28: Kieran Mansley
746 * tcp.c: Ensure ssthresh >= 2*MSS
748 2010-01-27: Simon Goldschmidt
749 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
750 callback can lead to accessing unallocated memory. As a consequence,
751 ERR_ABRT means the application has called tcp_abort()!
753 2010-01-25: Simon Goldschmidt
754 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
755 not implemented in SNMP): write-only or not-accessible are still
756 returned by getnext (though not by get)
758 2010-01-24: Simon Goldschmidt
759 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
760 not use reserved C/C++ keywords
762 2010-01-23: Simon Goldschmidt
763 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
766 2010-01-21: Simon Goldschmidt
767 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
768 if tcp_enqueue fails) both in raw- and netconn-API
770 2010-01-19: Simon Goldschmidt
771 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
773 2010-01-18: Iordan Neshev/Simon Goldschmidt
774 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
775 bugfix backports from 2.4.x.
777 2010-01-18: Simon Goldschmidt
778 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
780 2010-01-17: Simon Goldschmidt
781 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
782 task #10102: "netconn: clean up conn->err threading issues" by adding
783 error return value to struct api_msg_msg
785 2010-01-17: Simon Goldschmidt
786 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
787 to return err_t (bugs #27709 and #28087)
789 2010-01-14: Simon Goldschmidt
790 * ...: Use typedef for function prototypes throughout the stack.
792 2010-01-13: Simon Goldschmidt
793 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
794 window = 0) by correctly draining recvmbox/acceptmbox
796 2010-01-11: Simon Goldschmidt
797 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
798 erroneous callbacks) by copying the code from recent pppd
800 2010-01-10: Simon Goldschmidt
801 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
803 2010-01-10: Simon Goldschmidt
804 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
806 2010-01-08: Simon Goldschmidt
807 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
809 2010-01-08: Simon Goldschmidt
810 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
811 passed to dns_local_addhost() might be volatile
813 2010-01-07: Simon Goldschmidt
814 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
816 2010-01-06: Simon Goldschmidt
817 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
819 2009-12-31: Simon Goldschmidt
820 * many ppp files: Reorganised PPP source code from ucip structure to pppd
821 structure to easily compare our code against the pppd code (around v2.3.1)
823 2009-12-27: Simon Goldschmidt
824 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
832 2009-10-27 Simon Goldschmidt/Stephan Lesage
833 * netifapi.c/.h: Added netifapi_netif_set_addr()
835 2009-10-07 Simon Goldschmidt/Fabian Koch
836 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
837 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
839 2009-08-26 Simon Goldschmidt/Simon Kallweit
840 * slipif.c/.h: bug #26397: SLIP polling support
842 2009-08-25 Simon Goldschmidt
843 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
844 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
846 2009-08-25 Simon Goldschmidt
847 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
849 2009-08-24 Jakob Stoklund Olesen
850 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
851 to netif_set_link_up().
853 2009-08-23 Simon Goldschmidt
854 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
855 to a human-readable string.
859 2009-12-24: Kieran Mansley
860 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
863 2009-12-06: Simon Goldschmidt
864 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
865 be statically allocated (like in ucip)
867 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
868 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
870 2009-12-03: Simon Goldschmidt
871 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
872 could have non-zero length
874 2009-12-02: Simon Goldschmidt
875 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
876 tcp_input_pcb until after calling the pcb's callbacks
878 2009-11-29: Simon Goldschmidt
879 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
880 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
882 2009-11-29: Simon Goldschmidt
883 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
884 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
886 2009-11-26: Simon Goldschmidt
887 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
890 2009-11-26: Simon Goldschmidt
891 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
892 algorithm at PCB level
894 2009-11-22: Simon Goldschmidt
895 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
897 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
898 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
899 reusing time-wait pcb
901 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
902 * sockets.c: Fixed bug #28062: Data received directly after accepting
903 does not wake up select
905 2009-11-11: Simon Goldschmidt
906 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
908 2009-10-30: Simon Goldschmidt
909 * opt.h: Increased default value for TCP_MSS to 536, updated default
910 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
912 2009-10-28: Kieran Mansley
913 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
914 to follow algorithm from TCP/IP Illustrated
916 2009-10-27: Kieran Mansley
917 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
919 2009-10-25: Simon Goldschmidt
920 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
921 pcb->recv is NULL to keep rcv_wnd correct)
923 2009-10-25: Simon Goldschmidt
924 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
926 2009-10-23: Simon Goldschmidt (David Empson)
927 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
929 2009-10-21: Simon Goldschmidt
930 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
931 trailing 1 byte len (SYN/FIN)
933 2009-10-21: Simon Goldschmidt
934 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
936 2009-10-19: Simon Goldschmidt
937 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
938 conditional code to assert where applicable), check pbuf length before
939 testing for valid reply
941 2009-10-19: Simon Goldschmidt
942 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
943 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
945 2009-10-16: Simon Goldschmidt
946 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
947 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
950 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
951 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
953 2009-10-15: Simon Goldschmidt
954 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
957 2009-10-15: Simon Goldschmidt
958 * autoip.c: Fixed bug #27704: autoip starts with wrong address
959 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
960 of network byte order
962 2009-10-11 Simon Goldschmidt (Jörg Kesten)
963 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
964 which are not consecutive when retransmitting unacked segments
966 2009-10-09 Simon Goldschmidt
967 * opt.h: Fixed default values of some stats to only be enabled if used
968 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
970 2009-08-30 Simon Goldschmidt
971 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
972 function" by checking for loopback before calling ip_frag
974 2009-08-25 Simon Goldschmidt
975 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
977 2009-08-23 Simon Goldschmidt
978 * ppp.c: bug #27078: Possible memory leak in pppInit()
980 2009-08-23 Simon Goldschmidt
981 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
984 2009-08-23 Simon Goldschmidt
985 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
986 Fixed wrong parenthesis, added check in init.c
988 2009-08-23 Simon Goldschmidt
989 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
991 2009-08-23 Simon Goldschmidt
992 * many ppp files: bug #27267: Added include to string.h where needed
994 2009-08-23 Simon Goldschmidt
995 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1002 2009-05-10 Simon Goldschmidt
1003 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1004 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1005 one pbuf to help MACs that don't support scatter-gather DMA.
1007 2009-05-09 Simon Goldschmidt
1008 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1009 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1011 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1012 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1013 extended info about the currently received packet.
1015 2009-04-27 Simon Goldschmidt
1016 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1018 2009-04-25 Simon Goldschmidt
1019 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1020 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1022 2009-04-21 Simon Goldschmidt
1023 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1024 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1025 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1026 as an external function for lookup.
1028 2009-04-15 Simon Goldschmidt
1029 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1031 2009-03-31 Kieran Mansley
1032 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1033 TCP timestamp options, off by default. Rework tcp_enqueue() to
1034 take option flags rather than specified option data
1036 2009-02-18 Simon Goldschmidt
1037 * cc.h: Added printf formatter for size_t: SZT_F
1039 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1040 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1043 2009-02-12 Simon Goldschmidt
1044 * init.h: Added LWIP_VERSION to get the current version of the stack
1046 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1047 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1048 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1051 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1052 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1053 is only used by UDPLITE at present, so conditionalise it.
1055 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1056 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1057 "seed" address. This should reduce AUTOIP conflicts if
1058 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1060 2008-10-02 Jonathan Larmour and Rishi Khan
1061 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1064 2008-06-30 Simon Goldschmidt
1065 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1066 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1067 mem_free to run between mem_malloc iterations. Added illegal counter for
1070 2008-06-27 Simon Goldschmidt
1071 * stats.h/.c, some other files: patch #6483: stats module improvement:
1072 Added defines to display each module's statistic individually, added stats
1073 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1075 2008-06-17 Simon Goldschmidt
1076 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1077 (define LWIP_ERR_T in cc.h)
1079 2008-06-17 Simon Goldschmidt
1080 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1083 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1084 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1085 modified version of patch # 6370: Moved loopif code to netif.c so that
1086 loopback traffic is supported on all netifs (all local IPs).
1087 Added option to limit loopback packets for each netifs.
1091 2009-08-12 Kieran Mansley
1092 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1093 out of window or out of order properly
1095 2009-08-12 Kieran Mansley
1096 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1098 2009-07-28 Simon Goldschmidt
1099 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1101 2009-07-27 Kieran Mansley
1102 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1104 2009-07-09 Kieran Mansley
1105 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1106 recv_avail and don't increment counters until message successfully
1109 2009-06-25 Kieran Mansley
1110 * api_msg.c api.h: BUG26722: initialise netconn write variables
1113 2009-06-25 Kieran Mansley
1114 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1116 2009-06-25 Kieran Mansley
1117 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1118 simultaneous close behaviour, and make snd_nxt have the same meaning
1121 2009-05-12 Simon Goldschmidt
1122 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1123 arp_table / uses etharp_query" by adding etharp_gratuitous()
1125 2009-05-12 Simon Goldschmidt
1126 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1127 to the IP header (used by igmp_ip_output_if)
1129 2009-05-06 Simon Goldschmidt
1130 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1131 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1133 2009-05-05 Simon Goldschmidt
1134 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1137 2009-05-04 Simon Goldschmidt
1138 * init.c: snmp was not initialized in lwip_init()
1140 2009-05-04 Frédéric Bernon
1141 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1143 2009-05-03 Simon Goldschmidt
1144 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1145 (and unsent->next == NULL)
1147 2009-05-02 Simon Goldschmidt
1148 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1149 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1151 2009-05-02 Simon Goldschmidt
1152 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1154 2009-05-01 Simon Goldschmidt
1155 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1157 2009-05-01 Simon Goldschmidt
1158 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1160 2009-04-29 Frédéric Bernon
1161 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1162 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1163 of broadcast packets even when this option wasn't set. Port maintainers
1164 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1165 If you want this option also filter broadcast on recv operations, you also
1166 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1168 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1169 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1170 DHCP/AUTOIP cooperation
1172 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1173 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1174 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1175 right place in tcp_output and tcp_rexmit).
1177 2009-04-25 Simon Goldschmidt
1178 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1179 when debugging": memp_sizes contained the wrong sizes (including sanity
1180 regions); memp pools for MEM_USE_POOLS were too small
1182 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1183 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1184 behavior, with with ip address string not ended by a '\0', a space or a
1187 2009-04-19 Simon Goldschmidt
1188 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1189 pcb->err is called, not pcb->connected (with an error code).
1191 2009-04-19 Simon Goldschmidt
1192 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1193 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1195 2009-04-19 Simon Goldschmidt
1196 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1197 in the header pbuf, not the data pbuf)
1199 2009-04-18 Simon Goldschmidt
1200 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1202 2009-04-15 Simon Goldschmidt
1203 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1205 2009-04-15 Simon Goldschmidt
1206 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1208 2009-04-15 Simon Goldschmidt
1209 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1210 ip_hinted_output() (for smaller code mainly)
1212 2009-04-15 Simon Goldschmidt
1213 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1215 2009-04-15 Simon Goldschmidt
1216 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1217 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1218 is big enough in dhcp_start
1220 2009-04-15 Simon Goldschmidt
1221 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1223 2009-04-15 Simon Goldschmidt
1224 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1226 2009-04-15 Simon Goldschmidt
1227 * sockets.c: bug #26121: set_errno can be overridden
1229 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1230 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1233 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1234 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1237 2009-03-31 Kieran Mansley
1238 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1239 updates are calculated and sent (BUG20515)
1241 * tcp_in.c: cope with SYN packets received during established states,
1242 and retransmission of initial SYN.
1244 * tcp_out.c: set push bit correctly when tcp segments are merged
1246 2009-03-27 Kieran Mansley
1247 * tcp_out.c set window correctly on probes (correcting change made
1250 2009-03-26 Kieran Mansley
1251 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1252 connections where no reset required (bug #25622)
1254 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1257 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1258 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1259 too small depending on MEM_ALIGNMENT
1261 2009-02-16 Simon Goldschmidt
1262 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1263 converted size argument of netconn_write to 'size_t'
1265 2009-02-16 Simon Goldschmidt
1266 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1267 by moving accept callback function pointer to TCP_PCB_COMMON
1269 2009-02-12 Simon Goldschmidt
1270 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1273 2009-02-11 Simon Goldschmidt
1274 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1276 2009-02-11 Simon Goldschmidt
1277 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1278 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1280 2009-02-10 Simon Goldschmidt
1281 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1282 Accepts_pending is decrease on a corresponding listen pcb when a connection
1283 in state SYN_RCVD is close.
1285 2009-01-28 Jonathan Larmour
1286 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1289 2008-12-19 Simon Goldschmidt
1290 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1292 2008-12-10 Tamas Somogyi, Frédéric Bernon
1293 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1294 port uses deleted netbuf.
1296 2008-10-18 Simon Goldschmidt
1297 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1300 2008-10-15 Simon Goldschmidt
1301 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1302 by packing the struct ip_reass_helper.
1304 2008-10-03 David Woodhouse, Jonathan Larmour
1305 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1307 2008-10-02 Jonathan Larmour
1308 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1309 padding is included.
1311 2008-09-30 Jonathan Larmour
1312 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1313 assertion check that addrlen isn't NULL.
1315 2008-09-30 Jonathan Larmour
1316 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1318 2008-08-26 Simon Goldschmidt
1319 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1320 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1322 2008-08-14 Simon Goldschmidt
1323 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1324 tcp_close returns != ERR_OK)
1326 2008-07-08 Frédéric Bernon
1327 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1328 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1330 2008-06-24 Jonathan Larmour
1331 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1332 if tcp_seg_copy fails.
1334 2008-06-17 Simon Goldschmidt
1335 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1336 and created defines for swapping bytes and folding u32 to u16.
1338 2008-05-30 Kieran Mansley
1339 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1340 rather than rcv_ann_wnd when deciding if packets are in-window.
1341 Contributed by <arasmussen@consultant.datasys.swri.edu>
1343 2008-05-30 Kieran Mansley
1344 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1345 passing as function pointers when MEM_LIBC_MALLOC is defined.
1347 2008-05-09 Jonathan Larmour
1348 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1349 stop it being treated as a fatal error.
1351 2008-04-15 Simon Goldschmidt
1352 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1355 2008-03-27 Simon Goldschmidt
1356 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1357 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1358 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1359 or heap memory from interrupt context
1361 2008-03-26 Simon Goldschmidt
1362 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1363 host sent a zero mss as TCP option.
1370 2008-03-10 Jonathan Larmour
1371 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1372 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1374 2008-01-22 Frédéric Bernon
1375 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1376 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1378 2008-01-14 Frédéric Bernon
1379 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1380 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1381 tcp_recv callback (see rawapi.txt).
1383 2008-01-14 Frédéric Bernon, Marc Chaland
1384 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1386 2008-01-12 Frédéric Bernon
1387 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1388 netconn::sem per netconn::op_completed like suggested for the task #7490
1389 "Add return value to sys_mbox_post".
1391 2008-01-12 Frédéric Bernon
1392 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1393 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1394 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1396 2008-01-10 Frédéric Bernon
1397 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1398 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1399 "blocking" ("block" parameter = 1).
1401 2008-01-10 Frédéric Bernon
1402 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1403 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1404 "Add return value to sys_mbox_post".
1406 2008-01-05 Frédéric Bernon
1407 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1408 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1409 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1410 indicate the number of pointers query by the mailbox. There is three defines
1411 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1412 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1413 parameter in your implementation, but to ignore it to keep the previous behavior.
1414 The new sys_mbox_trypost function return a value to know if the mailbox is
1415 full or if the message is posted. Take a look to sys_arch.txt for more details.
1416 This new function is used in tcpip_input (so, can be called in an interrupt
1417 context since the function is not blocking), and in recv_udp and recv_raw.
1419 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1420 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1421 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1422 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1423 documentation in the rawapi.txt file.
1425 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1426 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1428 2007-12-31 Frédéric Bernon, Luca Ceresoli
1429 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1430 in autoip". The change in etharp_raw could be removed, since all calls to
1431 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1432 wrong in the future.
1434 2007-12-30 Frédéric Bernon, Tom Evans
1435 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1436 Filtering" reported by Tom Evans.
1438 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1439 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1440 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1441 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1442 keep accepting new connections.
1444 2007-12-13 Frédéric Bernon
1445 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1446 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1448 2007-12-12 Frédéric Bernon
1449 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1450 are the one which have ram usage.
1452 2007-12-05 Frédéric Bernon
1453 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1454 set of variables (=0) or a local one (=1). In this last case, your port should
1455 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1456 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1458 2007-12-03 Simon Goldschmidt
1459 * ip.c: ip_input: check if a packet is for inp first before checking all other
1460 netifs on netif_list (speeds up packet receiving in most cases)
1462 2007-11-30 Simon Goldschmidt
1463 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1464 UDP: move a (connected) pcb selected for input to the front of the list of
1465 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1468 2007-11-28 Simon Goldschmidt
1469 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1471 2007-11-25 Simon Goldschmidt
1472 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1475 2007-11-24 Simon Goldschmidt
1476 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1477 to the new file netdb.c; included lwip_getaddrinfo.
1479 2007-11-21 Simon Goldschmidt
1480 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1481 based on the MTU of the netif used to send. Enabled by default. Disable by
1482 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1484 2007-11-19 Frédéric Bernon
1485 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1486 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1487 copy dns payload to parse the response), return an error if there is no place
1488 for a new query, and fix some minor problems.
1490 2007-11-16 Simon Goldschmidt
1491 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1492 removed files: core/inet.c, core/inet6.c
1493 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1494 inet and chksum part; changed includes in all lwIP files as appropriate
1496 2007-11-16 Simon Goldschmidt
1497 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1498 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1499 (gethostbyname/gethostbyname_r).
1501 2007-11-15 Jim Pettinato, Frédéric Bernon
1502 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1503 requests with RAW api interface. Initialization is done in lwip_init() with
1504 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1505 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1506 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1507 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1508 list with points to improve.
1510 2007-11-06 Simon Goldschmidt
1511 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1512 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1513 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1515 2007-11-06 Simon Goldschmidt
1516 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1517 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1518 implementation from netconn api applications.
1520 2007-11-03 Frédéric Bernon
1521 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1522 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1523 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1524 it. This is a first release which have to be improve for TCP. Note it used the
1525 netconn::recv_avail which need to be more "thread-safe" (note there is already
1526 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1528 2007-11-01 Frédéric Bernon, Marc Chaland
1529 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1530 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1531 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1532 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1533 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1535 2007-10-24 Frédéric Bernon
1536 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1537 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1538 some code (like we have talk in "patch #5919 : Create compile switch to remove
1539 select code"), but it could be done later.
1541 2007-10-08 Simon Goldschmidt
1542 * many files: Changed initialization: many init functions are not needed any
1543 more since we now rely on the compiler initializing global and static
1546 2007-10-06 Simon Goldschmidt
1547 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1548 to enqueue the received pbufs so that multiple packets can be reassembled
1549 simultaneously and no static reassembly buffer is needed.
1551 2007-10-05 Simon Goldschmidt
1552 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1553 all netifs (or ports) can use it.
1555 2007-10-05 Frédéric Bernon
1556 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1557 common function to reduce a little bit the footprint (for all functions using
1558 only the "netif" parameter).
1560 2007-10-03 Frédéric Bernon
1561 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1562 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1563 a little bit the footprint (for all functions using only the "netif" parameter).
1565 2007-09-15 Frédéric Bernon
1566 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1567 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1568 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1569 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1571 2007-09-10 Frédéric Bernon
1572 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1573 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1574 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1575 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1576 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1577 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1578 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1579 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1580 when it's queried (any direct call to "sysuptime" is changed by a call to
1581 snmp_get_sysuptime).
1583 2007-09-09 Frédéric Bernon, Bill Florac
1584 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1585 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1586 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1587 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1588 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1589 the next query message to receive the matching multicast streams).
1591 2007-09-08 Frédéric Bernon
1592 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1593 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1594 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1595 Enable to access to these fields with LWIP_TCP=0.
1597 2007-09-05 Frédéric Bernon
1598 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1599 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1600 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1601 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1602 help to reduce footprint, and to reduce "visibility" on the Internet.
1604 2007-09-05 Frédéric Bernon, Bill Florac
1605 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1606 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1607 parameters have to be provided: a task name, and a task stack size. For this
1608 one, since it's platform dependant, you could define the best one for you in
1609 your lwipopts.h. For port maintainers, you can just add these new parameters
1610 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1613 2007-09-05 Frédéric Bernon
1614 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1615 inside init.c for task #7142 "Sanity check user-configurable values".
1617 2007-09-04 Frédéric Bernon, Bill Florac
1618 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1619 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1620 value). It will avoid potential fragmentation problems, use a counter to know
1621 how many times a group is used on an netif, and free it when all applications
1622 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1623 check if LWIP_IGMP!=0).
1625 2007-09-03 Frédéric Bernon
1626 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1627 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1628 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1629 and/or the "interface" field (for netconn layer), for join/leave operations.
1630 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1631 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1633 2007-08-30 Frédéric Bernon
1634 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1635 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1636 with other API (application based on raw API, or future "socket2" API). Ports
1637 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1639 2007-08-30 Frédéric Bernon, Jonathan Larmour
1640 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1641 user-configurable values".
1643 2007-08-29 Frédéric Bernon
1644 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1645 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1646 spirit than the others modules. Modify some IGMP debug traces.
1648 2007-08-29 Frédéric Bernon
1649 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1650 Add lwip_init function to regroup all modules initializations, and to provide
1651 a place to add code for task #7142 "Sanity check user-configurable values".
1652 Ports maintainers should remove direct initializations calls from their code,
1653 and add init.c in their makefiles. Note that lwip_init() function is called
1654 inside tcpip_init, but can also be used by raw api users since all calls are
1655 disabled when matching options are disabled. Also note that their is new options
1656 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1658 2007-08-26 Marc Boucher
1659 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1660 since they can under certain circumstances be called with an invalid conn
1661 pointer after the connection has been closed (and conn has been freed).
1663 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1664 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1665 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1667 2007-08-22 Frédéric Bernon
1668 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1669 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1671 2007-08-22 Frédéric Bernon
1672 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1673 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1674 name is tcpip_input (we keep the name of 1.2.0 function).
1676 2007-08-17 Jared Grubb
1677 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1678 settings into new memp_std.h and optional user file lwippools.h. This adds
1679 more dynamic mempools, and allows the user to create an arbitrary number of
1680 mempools for mem_malloc.
1682 2007-08-16 Marc Boucher
1683 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1684 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1685 close the connection.
1687 2007-08-16 Marc Boucher
1688 * sockets.c: lwip_accept(): check netconn_peer() error return.
1690 2007-08-16 Marc Boucher
1691 * mem.c, mem.h: Added mem_calloc().
1693 2007-08-16 Marc Boucher
1694 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1695 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1696 and starving other message types.
1697 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1699 2007-08-16 Marc Boucher
1700 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1701 type and flgs (later renamed to flags).
1702 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1703 Improved lwip_recvfrom(). TCP push now propagated.
1705 2007-08-16 Marc Boucher
1706 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1709 2007-08-16 Marc Boucher
1710 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1711 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1712 Added PPPoE support and various PPP improvements.
1714 2007-07-25 Simon Goldschmidt
1715 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1716 making netbuf_copy_partial use this function.
1718 2007-07-25 Simon Goldschmidt
1719 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1720 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1723 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1724 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1725 a link callback in the netif struct, and functions to handle it. Be carefull
1726 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1727 if you want to be sure to be compatible with future changes...
1729 2007-06-30 Frédéric Bernon
1730 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1732 2007-06-21 Simon Goldschmidt
1733 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1734 LWIP_AUTOIP =0 and =1 to remove redundant code.
1736 2007-06-21 Simon Goldschmidt
1737 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1738 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1739 heap. This both prevents memory fragmentation and gives a higher speed
1740 at the cost of more memory consumption. Turned off by default.
1742 2007-06-21 Simon Goldschmidt
1743 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1744 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1745 int to be able to send a bigger buffer than 64K with one time (mainly
1746 used from lwip_send).
1748 2007-06-21 Simon Goldschmidt
1749 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1750 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1752 2007-06-21 Simon Goldschmidt
1753 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1754 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1755 changes on low memory or empty send-buffer.
1757 2007-06-18 Simon Goldschmidt
1758 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1759 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1760 used for ethernet and struct eth_addr already had a defined length of 6).
1762 2007-06-17 Simon Goldschmidt
1763 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1764 to disable UDP checksum generation on transmit.
1766 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1767 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1768 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1769 this macro to check "conn" parameter in api_msg.c functions.
1771 2007-06-11 Simon Goldschmidt
1772 * sockets.c, sockets.h: Added UDP lite support for sockets
1774 2007-06-10 Simon Goldschmidt
1775 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1776 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1779 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1780 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1781 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1782 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1783 (see TODO mark in the source code).
1785 2007-06-09 Simon Goldschmidt
1786 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1787 etharp_output() to match netif->output so etharp_output() can be used
1788 directly as netif->output to save one function call.
1790 2007-06-08 Simon Goldschmidt
1791 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1792 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1793 added initialization of those to ethernetif, slipif and loopif.
1795 2007-05-18 Simon Goldschmidt
1796 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1797 (defaulting to off for now) that can be set to 0 to send fragmented
1798 packets by passing PBUF_REFs down the stack.
1800 2007-05-23 Frédéric Bernon
1801 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1802 connections, such present in patch #5959.
1804 2007-05-23 Frédéric Bernon
1805 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1806 code in only one part...
1808 2007-05-18 Simon Goldschmidt
1809 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1810 elements to overflow. This is achieved by adding some bytes before and after
1811 each pool element (increasing their size, of course), filling them with a
1812 prominent value and checking them on freeing the element.
1813 Set it to 2 to also check every element in every pool each time memp_malloc()
1814 or memp_free() is called (slower but more helpful).
1816 2007-05-10 Simon Goldschmidt
1817 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1818 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1821 2007-05-11 Frédéric Bernon
1822 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1823 Include a function pointer instead of a table index in the message to reduce
1824 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1825 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1827 2007-05-10 Simon Goldschmidt
1828 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1829 \ extern "C" {' in all header files. Now you can write your application using
1830 the lwIP stack in C++ and simply #include the core files. Note I have left
1831 out the netif/ppp/*h header files for now, since I don't know which files are
1832 included by applications and which are for internal use only.
1834 2007-05-09 Simon Goldschmidt
1835 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1836 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1837 situations where some compilers might inline the copy and save a function
1838 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1840 2007-05-08 Simon Goldschmidt
1841 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1842 to be overriden in case the C-library malloc implementation is not protected
1843 against concurrent access.
1845 2007-05-04 Simon Goldschmidt (Atte Kojo)
1846 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1847 multiple packets to the same host.
1849 2007-05-04 Frédéric Bernon, Jonathan Larmour
1850 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1851 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1852 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1853 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1854 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1855 these fields are now renamed "addr" & "port".
1857 2007-04-11 Jonathan Larmour
1858 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1859 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1860 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1861 by the port in sys_arch.h if desired.
1863 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1864 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1865 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1866 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1868 2007-04-05 Frédéric Bernon
1869 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1871 2007-04-04 Simon Goldschmidt
1872 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1873 use this for and architecture-independent form to tell the compiler you intentionally
1874 are not using this variable. Can be overriden in cc.h.
1876 2007-03-28 Frédéric Bernon
1877 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1878 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1879 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1880 It will be used by DHCP to register a client hostname, but can also be use when you call
1883 2007-03-28 Frédéric Bernon
1884 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1885 initialize a network interface's flag with. It tell this interface is an ethernet
1886 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1887 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1889 2007-03-26 Frédéric Bernon, Jonathan Larmour
1890 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1891 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1892 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1893 is done in tcpip_init function.
1895 2007-03-22 Frédéric Bernon
1896 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1897 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1898 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1899 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1900 but never used. Fix msg_in.c with the correct #if test for a stat display.
1902 2007-03-21 Kieran Mansley
1903 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1904 Provides callback on netif up/down state change.
1906 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1907 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1908 ip.c, netif.h, tcpip.c, opt.h:
1909 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1910 filter per all network interfaces. Declare a new function in netif to enable to
1911 control the MAC filter (to reduce lwIP traffic processing).
1913 2007-03-11 Frédéric Bernon
1914 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1915 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1916 unless you know what you're doing (default are RFC1122 compliant). Note
1917 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1919 2007-03-08 Frédéric Bernon
1920 * tcp.h: Keepalive values can be configured at compile time, but don't change
1921 this unless you know what you're doing (default are RFC1122 compliant).
1923 2007-03-08 Frédéric Bernon
1924 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1925 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1926 on UDP sockets/netconn.
1928 2007-03-08 Simon Goldschmidt
1929 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1931 2007-03-06 Frédéric Bernon
1932 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1933 Implement SO_RCVTIMEO on UDP sockets/netconn.
1935 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1936 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1937 on the stack and remove the API msg type from memp
1939 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1940 * sockets.h, sockets.c: Move socket initialization to new
1941 lwip_socket_init() function.
1942 NOTE: this changes the API with ports. Ports will have to be
1943 updated to call lwip_socket_init() now.
1945 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1946 * api_lib.c: Use memcpy in netbuf_copy_partial.
1951 2008-03-17 Frédéric Bernon, Ed Kerekes
1952 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1953 some problems to fill the IP header on some targets, use now the
1954 ip.h macros to do it).
1956 2008-03-13 Frédéric Bernon
1957 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1958 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1959 TCP connection caused a crash. Note that using (lwip_)recvfrom
1960 like this is a bit slow and that using (lwip)getpeername is the
1961 good lwip way to do it (so, using recv is faster on tcp sockets).
1963 2008-03-12 Frédéric Bernon, Jonathan Larmour
1964 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1965 recv_raw() does not consume data", and the ping sample (with
1966 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1967 returned the IP payload, without the IP header).
1969 2008-03-04 Jonathan Larmour
1970 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1971 and/or warnings on some systems where mem_size_t and size_t differ.
1972 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1974 2008-03-04 Kieran Mansley (contributions by others)
1975 * Numerous small compiler error/warning fixes from contributions to
1976 mailing list after 1.3.0 release candidate made.
1978 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1979 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1981 2008-01-15 Kieran Mansley
1982 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1983 prevented from sending by a small send window, not just a zero
1986 2008-01-09 Jonathan Larmour
1987 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1988 conflict with Linux system headers.
1990 2008-01-06 Jonathan Larmour
1991 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1992 address entirely on receiving a DHCPNAK, and restarting discovery.
1994 2007-12-21 Simon Goldschmidt
1995 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1996 is not protected" by using new macros for interlocked access to modify/test
1997 netconn->recv_avail.
1999 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2000 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2002 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2003 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2004 of silly window avoidance and prevent lwIP from shrinking the window)
2006 2007-12-04 Simon Goldschmidt
2007 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2008 data packet was lost): add assert that all segment lists are empty in
2009 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2010 state from LAST_ACK in tcp_process
2012 2007-12-02 Simon Goldschmidt
2013 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2014 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2015 has to be set to 0 in lwipopts.h
2017 2007-12-02 Simon Goldschmidt
2018 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2019 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2020 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2021 This is a fix for thread-safety and allocates all items needed for a netconn
2022 when the netconn is created.
2024 2007-11-30 Simon Goldschmidt
2025 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2026 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2027 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2028 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2030 2007-11-27 Simon Goldschmidt
2031 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2032 letting ip_route only use netifs that are up.
2034 2007-11-27 Simon Goldschmidt
2035 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2036 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2037 sockets block most operations once they have seen a fatal error.
2039 2007-11-27 Simon Goldschmidt
2040 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2041 netif to send as an argument (to be able to send on netifs that are down).
2043 2007-11-26 Simon Goldschmidt
2044 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2047 2007-11-21 Simon Goldschmidt
2048 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2049 Fixed the nagle algorithm; nagle now also works for all raw API applications
2050 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2052 2007-11-12 Frédéric Bernon
2053 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2054 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2055 context in do_getaddr.
2057 2007-11-10 Simon Goldschmidt
2058 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2059 happen any time). Now the packet simply isn't enqueued when out of memory.
2061 2007-11-01 Simon Goldschmidt
2062 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2063 TCP_MSS if that is smaller) as long as no MSS option is received from the
2066 2007-11-01 Simon Goldschmidt
2067 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2068 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2069 sending our configured TCP_MSS instead of the one received).
2071 2007-11-01 Simon Goldschmidt
2072 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2073 calculated based on the configured TCP_MSS, not on the MSS option received
2076 2007-10-09 Simon Goldschmidt
2077 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2078 short and also was generated wrong if checksum coverage != tot_len;
2079 receive: checksum was calculated wrong if checksum coverage != tot_len
2081 2007-10-08 Simon Goldschmidt
2082 * mem.c: lfree was not updated in mem_realloc!
2084 2007-10-07 Frédéric Bernon
2085 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2086 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2087 this change cause an API breakage for netconn_addr, since a parameter
2088 type change. Any compiler should cause an error without any changes in
2089 yours netconn_peer calls (so, it can't be a "silent change"). It also
2090 reduce a little bit the footprint for socket layer (lwip_getpeername &
2091 lwip_getsockname use now a common lwip_getaddrname function since
2092 netconn_peer & netconn_addr have the same parameters).
2094 2007-09-20 Simon Goldschmidt
2095 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2096 by checking tcp_tw_pcbs also
2098 2007-09-19 Simon Goldschmidt
2099 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2101 2007-09-15 Mike Kleshov
2102 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2104 2007-09-06 Frédéric Bernon
2105 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2106 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2107 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2108 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2110 2007-08-30 Frédéric Bernon
2111 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2112 and fix some coding style.
2114 2007-08-28 Frédéric Bernon
2115 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2116 kind of packets. These packets are considered like Ethernet packets (payload
2117 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2118 are considered like IP packets (payload pointing to iphdr).
2120 2007-08-27 Frédéric Bernon
2121 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2122 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2123 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2125 2007-08-24 Kieran Mansley
2126 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2127 compiler (Paradigm C++)
2129 2007-08-09 Frédéric Bernon, Bill Florac
2130 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2131 Introduce IGMP_STATS to centralize statistics management.
2133 2007-08-09 Frédéric Bernon, Bill Florac
2134 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2135 packet on a udp pcb binded on an netif's IP address, and not on "any".
2137 2007-08-09 Frédéric Bernon, Bill Florac
2138 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2139 This is mainly on using lookup/lookfor, and some coding styles...
2141 2007-07-26 Frédéric Bernon (and "thedoctor")
2142 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2144 2007-07-25 Simon Goldschmidt
2145 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2146 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2147 (tcp_output is called again later from tcp timers).
2149 2007-07-25 Simon Goldschmidt
2150 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2151 copy_from_pbuf, which illegally modified the given pbuf.
2153 2007-07-25 Simon Goldschmidt
2154 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2155 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2157 2007-07-24 Simon Goldschmidt
2158 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2159 correct state (must be CLOSED).
2161 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2162 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2163 allocation. It now returns NULL.
2165 2007-07-13 Frédéric Bernon
2166 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2169 2007-07-13 Frédéric Bernon
2170 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2171 because current code doesn't follow rawapi.txt documentation.
2173 2007-07-13 Kieran Mansley
2174 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2175 out of sequence processing of received packets
2177 2007-07-03 Simon Goldschmidt
2178 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2179 assumption is made that this pbuf is in one piece (i.e. not chained). These
2180 assumptions clash with the possibility of converting to fully pool-based
2181 pbuf implementations, where PBUF_RAM pbufs might be chained.
2183 2007-07-03 Simon Goldschmidt
2184 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2185 when closing tcp netconns: removed conn->sem, less context switches when
2186 closing, both netconn_close and netconn_delete should safely close tcp
2189 2007-07-02 Simon Goldschmidt
2190 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2191 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2192 to cache ARP table indices with each pcb instead of single-entry cache for
2195 2007-07-02 Simon Goldschmidt
2196 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2197 warnings when assigning to smaller types.
2199 2007-06-28 Simon Goldschmidt
2200 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2202 2007-06-28 Simon Goldschmidt
2203 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2204 a segment contained chained pbufs)
2206 2007-06-28 Frédéric Bernon
2207 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2208 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2209 possible to define this macro in your own lwipopts.h to always use C library's
2210 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2212 2007-06-28 Frédéric Bernon
2213 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2214 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2215 in api_lib/api_msg (use pointers and not type with table, etc...)
2217 2007-06-26 Simon Goldschmidt
2218 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2220 2007-06-25 Simon Goldschmidt
2221 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2222 for udp packets with no matching pcb.
2224 2007-06-25 Simon Goldschmidt
2225 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2226 could get udp input packets if the remote side matched.
2228 2007-06-13 Simon Goldschmidt
2229 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2230 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2232 2007-06-13 Simon Goldschmidt
2233 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2234 -> netconn_new_..() does not allocate a new connection for unsupported
2237 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2238 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2239 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2241 2007-06-13 Frédéric Bernon, Matthias Weisser
2242 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2243 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2244 some macro names collision with some OS macros.
2246 2007-06-11 Simon Goldschmidt
2247 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2248 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2249 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2252 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2253 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2254 where TCP flags wasn't initialized in tcp_keepalive.
2256 2007-06-03 Simon Goldschmidt
2257 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2258 registered, p->payload was modified without modifying p->len if sending
2259 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2261 2007-06-03 Simon Goldschmidt
2262 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2263 re-used the input pbuf even if that didn't have enough space to include the
2264 link headers. Now the space is tested and a new pbuf is allocated for the
2265 echo response packet if the echo request pbuf isn't big enough.
2267 2007-06-01 Simon Goldschmidt
2268 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2270 2007-05-23 Frédéric Bernon
2271 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2272 allocated by do_listen if success) and netconn_accept errors handling. In
2273 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2274 by ASSERT, except for netconn_delete.
2276 2007-05-23 Frédéric Bernon
2277 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2278 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2279 directly close the recvmbox).
2281 2007-05-22 Simon Goldschmidt
2282 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2283 bound but unconnected (and non-listening) tcp_pcbs.
2285 2007-05-22 Frédéric Bernon
2286 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2287 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2288 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2289 like "sys_timeout" in their application threads.
2291 2007-05-22 Frédéric Bernon
2292 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2293 which parameters are used by which do_xxx function, and to avoid "misusing"
2294 parameters (patch #5938).
2296 2007-05-22 Simon Goldschmidt
2297 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2298 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2299 is only 8 bits wide. This affects the api, as there, the protocol was
2302 2007-05-18 Simon Goldschmidt
2303 * memp.c: addition to patch #5913: smaller pointer was returned but
2304 memp_memory was the same size -> did not save memory.
2306 2007-05-16 Simon Goldschmidt
2307 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2310 2007-05-16 Simon Goldschmidt
2311 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2312 as the one of the netif used for sending to prevent sending from old
2313 addresses after a netif address gets changed (partly fixes bug #3168).
2315 2007-05-16 Frédéric Bernon
2316 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2317 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2318 tcpip_init) because we have to be sure that network interfaces are already
2319 added (mac filter is updated only in igmp_init for the moment).
2321 2007-05-16 Simon Goldschmidt
2322 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2323 into sys_arch_sem_wait calls to prevent timers from running while waiting
2324 for the heap. This fixes bug #19167.
2326 2007-05-13 Simon Goldschmidt
2327 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2328 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2331 2007-05-07 Simon Goldschmidt
2332 * mem.c: Another attempt to fix bug #17922.
2334 2007-05-04 Simon Goldschmidt
2335 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2336 implementation so that it can be reused (don't allocate the target
2337 pbuf inside pbuf_copy()).
2339 2007-05-04 Simon Goldschmidt
2340 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2341 to save a little RAM (next pointer of memp is not used while not in pool).
2344 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2347 2007-04-23 Simon Goldschmidt
2348 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2349 in NULL reference for incoming TCP packets". Loopif has to be configured
2350 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2351 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2352 putting packets on a list that is fed to the stack by calling loopif_poll()
2353 (single-thread / NO_SYS / polling environment where e.g.
2354 netif->input() = ip_input).
2356 2007-04-17 Jonathan Larmour
2357 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2358 the difference between two u16_t's.
2359 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2360 MEMP_NUM_NETCONN in sockets.c right now.
2362 2007-04-12 Jonathan Larmour
2363 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2365 2007-04-12 Kieran Mansley
2366 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2367 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2369 2007-04-11 Simon Goldschmidt
2370 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2371 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2372 pbuf.c: removed functions no needed any more (by etharp).
2374 2007-04-11 Kieran Mansley
2375 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2376 "Constant is long" warnings with 16bit compilers. Contributed by
2377 avatar@mmlab.cse.yzu.edu.tw
2379 2007-04-05 Frédéric Bernon, Jonathan Larmour
2380 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2381 the mailbox is active". Now, the post is only done during a connect, and do_send,
2382 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2384 2007-04-03 Frédéric Bernon
2385 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2386 packets. See patch #5834.
2388 2007-03-30 Frédéric Bernon
2389 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2390 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2392 2007-03-30 Frédéric Bernon
2393 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2394 others environment defines (these were too "generic").
2396 2007-03-28 Frédéric Bernon
2397 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2398 result and can cause a crash. lwip_send now check netbuf_ref result.
2400 2007-03-28 Simon Goldschmidt
2401 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2402 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2403 defined. This is the way it should have been already (looking at
2406 2007-03-28 Kieran Mansley
2407 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2408 IP and TCP headers *and* physical link headers
2410 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2411 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2412 to send some garbage. It is not a definitive solution, but the patch does solve
2413 the problem for most cases.
2415 2007-03-22 Frédéric Bernon
2416 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2418 2007-03-22 Frédéric Bernon
2419 * api_lib.c: somes resources couldn't be freed if there was errors during
2420 netconn_new_with_proto_and_callback.
2422 2007-03-22 Frédéric Bernon
2423 * ethernetif.c: update netif->input calls to check return value. In older ports,
2424 it's a good idea to upgrade them, even if before, there could be another problem
2425 (access to an uninitialized mailbox).
2427 2007-03-21 Simon Goldschmidt
2428 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2429 by casting to unsigned).
2431 2007-03-21 Frédéric Bernon
2432 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2433 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2434 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2435 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2436 faster and more reliable communication between api_lib and tcpip.
2438 2007-03-21 Frédéric Bernon
2439 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2441 2007-03-21 Frédéric Bernon
2442 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2444 2007-03-21 Kieran Mansley
2445 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2448 2007-03-21 Kieran Mansley
2449 * Fix all uses of pbuf_header to check the return value. In some
2450 cases just assert if it fails as I'm not sure how to fix them, but
2451 this is no worse than before when they would carry on regardless
2454 2007-03-21 Kieran Mansley
2455 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2456 comment out missing header include in icmp.c
2458 2007-03-20 Frédéric Bernon
2459 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2460 synchronized with memp.h.
2462 2007-03-20 Frédéric Bernon
2463 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2464 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2465 network interfaces. Also fix a compiler warning.
2467 2007-03-20 Kieran Mansley
2468 * udp.c: Only try and use pbuf_header() to make space for headers if
2469 not a ROM or REF pbuf.
2471 2007-03-19 Frédéric Bernon
2472 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2475 2007-03-19 Frédéric Bernon
2476 * Remove unimplemented "memp_realloc" function from memp.h.
2478 2007-03-11 Simon Goldschmidt
2479 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2482 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2483 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2484 (missing `const' qualifier in socket functions), to get more compatible to
2485 standard POSIX sockets.
2487 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2488 * sockets.c: Add asserts inside bind, connect and sendto to check input
2489 parameters. Remove excessive set_errno() calls after get_socket(), because
2490 errno is set inside of get_socket(). Move last sock_set_errno() inside
2493 2007-03-09 Simon Goldschmidt
2494 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2495 was allocated too small.
2497 2007-03-06 Simon Goldschmidt
2498 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2499 the stack from concurrent access.
2501 2007-03-06 Frédéric Bernon, Dmitry Potapov
2502 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2503 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2505 2007-03-06 Simon Goldschmidt
2506 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2507 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2509 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2510 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2511 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2512 Allow to do ARP processing for incoming packets inside tcpip_thread
2513 (protecting ARP layer against concurrent access). You can also disable
2514 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2515 Older ports have to use tcpip_ethinput.
2517 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2518 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2519 from pointer target type"
2521 2007-03-05 Frédéric Bernon
2522 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2523 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2525 2007-03-04 Frédéric Bernon
2526 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2529 2007-03-04 Frédéric Bernon
2530 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2532 The api_msg struct stay on the stack (not moved to netconn struct).
2534 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2535 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2536 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2537 Also fixed cast warning in pbuf_alloc()
2539 2007-03-04 Simon Goldschmidt
2540 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2541 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2543 2007-03-03 Frédéric Bernon
2544 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2545 It is static, and never used in udp.c except udp_init().
2547 2007-03-02 Simon Goldschmidt
2548 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2549 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2550 initialized before tcpip_thread is running (e.g. before OS is started)
2552 2007-03-02 Frédéric Bernon
2553 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2556 2007-02-28 Kieran Mansley
2557 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2558 outside the region of the pbuf by pbuf_header()
2560 2007-02-28 Kieran Mansley
2561 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2562 when supplied timeout is also non-zero
2566 2006-12-05 Leon Woestenberg
2567 * CHANGELOG: Mention STABLE-1.2.0 release.
2571 2006-12-01 Christiaan Simons
2572 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2573 Note this is a workaround. Currently I have no other options left.
2575 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2576 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2577 to include/lwip/opt.h.
2578 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2579 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2580 * opt.h: Add above new options.
2582 2006-08-18 Christiaan Simons
2583 * tcp_{in,out}.c: added SNMP counters.
2584 * ipv4/ip.c: added SNMP counters.
2585 * ipv4/ip_frag.c: added SNMP counters.
2587 2006-08-08 Christiaan Simons
2588 * etharp.{c,h}: added etharp_find_addr() to read
2589 (stable) ethernet/IP address pair from ARP table
2591 2006-07-14 Christiaan Simons
2592 * mib_structs.c: added
2593 * include/lwip/snmp_structs.h: added
2594 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2596 2006-07-06 Christiaan Simons
2597 * snmp/asn1_{enc,dec}.c added
2599 * snmp/msg_{in,out}.c added
2600 * include/lwip/snmp_asn1.h added
2601 * include/lwip/snmp_msg.h added
2602 * doc/snmp_agent.txt added
2604 2006-03-29 Christiaan Simons
2605 * inet.c, inet.h: Added platform byteswap support.
2606 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2607 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2611 2006-11-30 Christiaan Simons
2612 * dhcp.c: Fixed false triggers of request_timeout.
2614 2006-11-28 Christiaan Simons
2615 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2617 2006-10-11 Christiaan Simons
2618 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2619 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2620 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2621 identifier from 170 to 136 (bug #17574).
2623 2006-10-10 Christiaan Simons
2624 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2626 2006-08-17 Christiaan Simons
2627 * udp.c: Fixed bug #17200, added check for broadcast
2628 destinations for PCBs bound to a unicast address.
2630 2006-08-07 Christiaan Simons
2631 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2633 2006-06-27 Christiaan Simons
2634 * api_msg.c: Applied patch for cold case (bug #11135).
2635 In accept_function() ensure newconn->callback is always initialized.
2637 2006-06-15 Christiaan Simons
2638 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2639 facilitate printing of mem_size_t and u16_t statistics.
2641 2006-06-14 Christiaan Simons
2642 * api_msg.c: Applied patch #5146 to handle allocation failures
2643 in accept() by Kevin Lawson.
2645 2006-05-26 Christiaan Simons
2646 * api_lib.c: Removed conn->sem creation and destruction
2647 from netconn_write() and added sys_sem_new to netconn_new_*.
2651 2006-03-03 Christiaan Simons
2652 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2653 access and added pbuf_alloc() return value checks.
2655 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2656 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2657 now handled by the checksum routine properly.
2659 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2660 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2661 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2663 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2664 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2665 submitted by Mitrani Hiroshi.
2667 2005-12-15 Christiaan Simons
2668 * inet.c: Disabled the added summing routine to preserve code space.
2670 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2671 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2672 Added Curt McDowell's optimized checksumming routine for future
2673 inclusion. Need to create test case for unaliged, aligned, odd,
2674 even length combination of cases on various endianess machines.
2676 2005-12-09 Christiaan Simons
2677 * inet.c: Rewrote standard checksum routine in proper portable C.
2679 2005-11-25 Christiaan Simons
2680 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2681 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2682 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2684 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2685 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2686 routine by Peter Jolasson.
2687 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2689 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2690 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2691 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2693 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2694 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2696 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2697 * udp.c: UDP pcb->recv() was called even when it was NULL.
2701 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2702 * etharp.*: Disabled multiple packets on the ARP queue.
2703 This clashes with TCP queueing.
2705 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2706 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2707 Halved the ARP period, doubled the period counts.
2708 ETHARP_MAX_PENDING now should be at least 2. This prevents
2709 the counter from reaching 0 right away (which would allow
2710 too little time for ARP responses to be received).
2712 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2713 * dhcp.c: Decline messages were not multicast but unicast.
2714 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2715 Do not try hard to insert arbitrary packet's source address,
2716 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2717 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2718 querying an address will see it appear in the cache (DHCP could
2719 suffer from this when a server invalidly gave an in-use address.)
2720 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2721 comparing network addresses (identifiers), not the network masks
2723 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2724 IP address actually belongs to the network of the given interface.
2726 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2727 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2731 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2732 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2733 even if one is already pending, if the rcv_wnd is above a threshold
2734 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2735 delayed ACK in order to open the window if the stack is only receiving data.
2737 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2738 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2740 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2741 * etharp.c: Make sure the first pbuf queued on an ARP entry
2742 is properly ref counted.
2744 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2745 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2746 warnings about comparison.
2747 * pbuf.c: Stopped compiler complaining of empty if statement
2748 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2749 * tcp.c: Stopped compiler complaining of empty if statement
2750 when LWIP_DEBUGF() empty.
2751 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2752 * inet.c: Added a couple of casts to quiet the compiler.
2753 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2755 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2756 * inet.c: Made data types consistent in inet_ntoa().
2757 Added casts for return values of checksum routines, to pacify compiler.
2758 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2759 Small corrections to some debugging statements, to pacify compiler.
2761 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2762 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2763 * ethernetif.c Updated low_level_output() to match prototype for
2764 netif->linkoutput and changed low_level_input() similarly for consistency.
2765 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2766 of raw_recv() in raw.h and so avoid compiler error.
2767 * sockets.c: Added trivial (int) cast to keep compiler happier.
2768 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2774 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2775 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2776 your cc.h file defines this either 1 or 0. If non-defined,
2778 * .c: Added <string.h> and <errno.h> includes where used.
2779 * etharp.c: Made some array indices unsigned.
2781 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2782 * netif.*: Added netif_set_up()/down().
2783 * dhcp.c: Changes to restart program flow.
2785 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2786 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2787 single-pass lookup for different candidates. Should exploit locality.
2789 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2790 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2791 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2792 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2793 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2797 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2798 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2799 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2800 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2801 is to prefix the 14-bit Ethernet headers with two padding bytes.
2803 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2804 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2805 * etharp.c: Fixed the case where the packet that initiates the ARP request
2806 is not queued, and gets lost. Fixed the case where the packets destination
2807 address is already known; we now always queue the packet and perform an ARP
2814 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2815 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2816 * Fixed two possible NULL references in rare cases.
2822 * Fixed DHCP which did not include the IP address in DECLINE messages.
2826 * etharp.c has been hauled over a bit.
2832 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2833 * Packets sent from ARP queue had invalid source hardware address.
2837 * Pass-by ARP requests do now update the cache.
2841 * No longer dependent on ctype.h.
2842 * New socket options.
2843 * Raw IP pcb support.
2849 * Some debug formatters and casts fixed.
2850 * Numereous fixes in PPP.
2854 * DEBUGF now is LWIP_DEBUGF
2855 * pbuf_dechain() has been re-enabled.
2856 * Mentioned the changed use of CVS branches in README.
2862 * Fixed pool pbuf memory leak in pbuf_alloc().
2863 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2864 Reported by Savin Zlobec.
2866 * PBUF_POOL chains had their tot_len field not set for non-first
2867 pbufs. Fixed in pbuf_alloc().
2871 * Added PPP stack contributed by Marc Boucher
2875 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2877 * ARP queueuing now queues the latest packet instead of the first.
2878 This is the RFC recommended behaviour, but can be overridden in
2885 * TCP has been fixed to deal with the new use of the pbuf->ref
2888 * DHCP dhcp_inform() crash bug fixed.
2892 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2893 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2894 Implemented by David Haas.
2900 * The packet buffer implementation has been enhanced to support
2901 zero-copy and copy-on-demand for packet buffers which have their
2902 payloads in application-managed memory.
2903 Implemented by David Haas.
2905 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2906 if an outgoing packet can be directly sent on the link, or perform
2907 a copy-on-demand when necessary.
2909 The application can safely assume the packet is sent, and the RAM
2910 is available to the application directly after calling udp_send()
2911 or similar function.
2915 * ARP_QUEUEING should now correctly work for all cases, including
2917 Implemented by Leon Woestenberg.
2921 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2922 to a '0.0.0.0' IP address.
2924 * The packet buffer implementation is changed. The pbuf->ref counter
2925 meaning has changed, and several pbuf functions have been
2926 adapted accordingly.
2928 * netif drivers have to be changed to set the hardware address length field
2929 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2930 See the contrib/ports/c16x cs8900 driver as a driver example.
2932 * netif's have a dhcp field that must be initialized to NULL by the driver.
2933 See the contrib/ports/c16x cs8900 driver as a driver example.
2935 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2936 logged in CVS but have not been explained here.
2938 (0.5.3) Changes since version 0.5.2
2942 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2943 threads because it wasn't protected by semaphores.
2947 * struct ip_addr now packed.
2949 * The name of the time variable in arp.c has been changed to ctime
2950 to avoid conflicts with the time() function.
2952 (0.5.2) Changes since version 0.5.1
2956 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2960 * A bug in tcp_parseopt() could cause the stack to hang because of a
2961 malformed TCP option.
2963 * The address of new connections in the accept() function in the BSD
2964 socket library was not handled correctly.
2966 * pbuf_dechain() did not update the ->tot_len field of the tail.
2968 * Aborted TCP connections were not handled correctly in all
2973 * All protocol header structs are now packed.
2975 * The ->len field in the tcp_seg structure now counts the actual
2976 amount of data, and does not add one for SYN and FIN segments.
2978 (0.5.1) Changes since version 0.5.0
2982 * Possible to run as a user process under Linux.
2984 * Preliminary support for cross platform packed structs.
2986 * ARP timer now implemented.
2990 * TCP output queue length was badly initialized when opening
2993 * TCP delayed ACKs were not sent correctly.
2995 * Explicit initialization of BSS segment variables.
2997 * read() in BSD socket library could drop data.
2999 * Problems with memory alignment.
3001 * Situations when all TCP buffers were used could lead to
3004 * TCP MSS option wasn't parsed correctly.
3006 * Problems with UDP checksum calculation.
3008 * IP multicast address tests had endianess problems.
3010 * ARP requests had wrong destination hardware address.
3014 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3016 * A ->linkoutput() member was added to struct netif.
3018 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3020 * ntoh* macros are now null definitions for big endian CPUs.
3022 (0.5.0) Changes since version 0.4.2
3026 * Redesigned operating system emulation layer to make porting easier.
3028 * Better control over TCP output buffers.
3030 * Documenation added.
3034 * Locking issues in buffer management.
3036 * Bugfixes in the sequential API.
3038 * IP forwarding could cause memory leakage. This has been fixed.
3042 * Directory structure somewhat changed; the core/ tree has been
3045 (0.4.2) Changes since version 0.4.1
3049 * Experimental ARP implementation added.
3051 * Skeleton Ethernet driver added.
3053 * Experimental BSD socket API library added.
3057 * In very intense situations, memory leakage could occur. This has
3062 * Variables named "data" and "code" have been renamed in order to
3063 avoid name conflicts in certain compilers.
3065 * Variable++ have in appliciable cases been translated to ++variable
3066 since some compilers generate better code in the latter case.
3068 (0.4.1) Changes since version 0.4
3072 * TCP: Connection attempts time out earlier than data
3073 transmissions. Nagle algorithm implemented. Push flag set on the
3074 last segment in a burst.
3076 * UDP: experimental support for UDP-Lite extensions.
3080 * TCP: out of order segments were in some cases handled incorrectly,
3081 and this has now been fixed. Delayed acknowledgements was broken
3082 in 0.4, has now been fixed. Binding to an address that is in use
3083 now results in an error. Reset connections sometimes hung an
3084 application; this has been fixed.
3086 * Checksum calculation sometimes failed for chained pbufs with odd
3087 lengths. This has been fixed.
3089 * API: a lot of bug fixes in the API. The UDP API has been improved
3090 and tested. Error reporting and handling has been
3091 improved. Logical flaws and race conditions for incoming TCP
3092 connections has been found and removed.
3094 * Memory manager: alignment issues. Reallocating memory sometimes
3095 failed, this has been fixed.
3097 * Generic library: bcopy was flawed and has been fixed.
3101 * API: all datatypes has been changed from generic ones such as
3102 ints, to specified ones such as u16_t. Functions that return
3103 errors now have the correct type (err_t).
3105 * General: A lot of code cleaned up and debugging code removed. Many
3106 portability issues have been fixed.
3108 * The license was changed; the advertising clause was removed.
3112 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3113 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3116 (0.4) Changes since version 0.3.1
3118 * Memory management has been radically changed; instead of
3119 allocating memory from a shared heap, memory for objects that are
3120 rapidly allocated and deallocated is now kept in pools. Allocation
3121 and deallocation from those memory pools is very fast. The shared
3122 heap is still present but is used less frequently.
3124 * The memory, memory pool, and packet buffer subsystems now support
3125 4-, 2-, or 1-byte alignment.
3127 * "Out of memory" situations are handled in a more robust way.
3129 * Stack usage has been reduced.
3131 * Easier configuration of lwIP parameters such as memory usage,
3132 TTLs, statistics gathering, etc. All configuration parameters are
3133 now kept in a single header file "lwipopts.h".
3135 * The directory structure has been changed slightly so that all
3136 architecture specific files are kept under the src/arch
3139 * Error propagation has been improved, both in the protocol modules
3142 * The code for the RTXC architecture has been implemented, tested
3145 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3146 the Internet checksum modules.
3148 * Bugs related to porting between a 32-bit and a 16-bit architecture
3149 have been found and corrected.
3151 * The license has been changed slightly to conform more with the
3152 original BSD license, including the advertisement clause.
3154 (0.3.1) Changes since version 0.3
3156 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3157 RAM never returned the RAM when the pbuf was deallocated.
3159 * TCP congestion control, window updates and retransmissions did not
3160 work correctly. This has now been fixed.
3162 * Bugfixes in the API.
3164 (0.3) Changes since version 0.2
3166 * New and improved directory structure. All include files are now
3167 kept in a dedicated include/ directory.
3169 * The API now has proper error handling. A new function,
3170 netconn_err(), now returns an error code for the connection in
3173 * Improvements in the memory management subsystem. The system now
3174 keeps a pointer to the lowest free memory block. A new function,
3175 mem_malloc2() tries to allocate memory once, and if it fails tries
3176 to free some memory and retry the allocation.
3178 * Much testing has been done with limited memory
3179 configurations. lwIP now does a better job when overloaded.
3181 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3183 * Many bugfixes in the TCP code:
3185 - Fixed a bug in tcp_close().
3187 - The TCP receive window was incorrectly closed when out of
3188 sequence segments was received. This has been fixed.
3190 - Connections are now timed-out of the FIN-WAIT-2 state.
3192 - The initial congestion window could in some cases be too
3193 large. This has been fixed.
3195 - The retransmission queue could in some cases be screwed up. This
3198 - TCP RST flag now handled correctly.
3200 - Out of sequence data was in some cases never delivered to the
3201 application. This has been fixed.
3203 - Retransmitted segments now contain the correct acknowledgment
3204 number and advertised window.
3206 - TCP retransmission timeout backoffs are not correctly computed
3207 (ala BSD). After a number of retransmissions, TCP now gives up
3210 * TCP connections now are kept on three lists, one for active
3211 connections, one for listening connections, and one for
3212 connections that are in TIME-WAIT. This greatly speeds up the fast
3213 timeout processing for sending delayed ACKs.
3215 * TCP now provides proper feedback to the application when a
3216 connection has been successfully set up.
3218 * More comments have been added to the code. The code has also been
3219 somewhat cleaned up.
3221 (0.2) Initial public release.