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 2011-10-12: Simon Goldschmidt
73 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
75 2011-10-09: Simon Goldschmidt
76 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
77 byte value when pcb->unacked != NULL
79 2011-10-09: Simon Goldschmidt
80 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
82 2011-09-27: Simon Goldschmidt
83 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
85 2011-09-27: Simon Goldschmidt
86 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
88 2011-09-27: Simon Goldschmidt
89 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
91 2011-09-24: Simon Goldschmidt
92 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
94 2011-09-23: Simon Goldschmidt
95 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
96 the last packet including FIN can lose data
98 2011-09-22: Simon Goldschmidt
99 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
102 2011-09-21: Simon Goldschmidt
103 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
106 2011-09-20: Simon Goldschmidt
107 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
109 2011-09-11: Simon Goldschmidt
110 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
113 2011-09-09: Simon Goldschmidt
114 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
117 2011-09-03: Simon Goldschmidt
118 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
119 is aggregated and sent to application
121 2011-09-01: Simon Goldschmidt
122 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
125 2011-09-01: Simon Goldschmidt
126 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
128 2011-08-24: Simon Goldschmidt
129 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
131 2011-08-24: Simon Goldschmidt
132 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
133 accept() on UDP connections
135 2011-08-24: Simon Goldschmidt
136 * sockets.h: fixed bug #34057 socklen_t should be a typedef
138 2011-08-24: Simon Goldschmidt
139 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
141 2011-08-24: Simon Goldschmidt
142 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
144 2011-08-24: Simon Goldschmidt
145 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
147 2011-08-22: Simon Goldschmidt
148 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
149 merely prevents nagle from not transmitting fast after closing.)
151 2011-07-22: Simon Goldschmidt
152 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
153 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
154 lwip_send() sends as much as possible for non-blocking sockets
156 2011-07-22: Simon Goldschmidt
157 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
158 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
159 at regular intervals from main level.
161 2011-07-21: Simon Goldschmidt
162 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
163 sending an ARP request when an ARP entry is used in the last minute before
166 2011-07-04: Simon Goldschmidt
167 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
169 2011-06-26: Simon Goldschmidt
170 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
171 updating its documentation only.
173 2011-06-26: Simon Goldschmidt
174 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
177 2011-06-26: Simon Goldschmidt
178 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
186 2011-03-27: Simon Goldschmidt
187 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
188 calculate it in tcp_zero_window_probe (the only place where it was used).
190 2010-11-21: Simon Goldschmidt
191 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
194 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
195 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
196 IP_MULTICAST_LOOP at socket- and raw-API level.
198 2010-06-16: Simon Goldschmidt
199 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
200 link-layer-addressed UDP traffic to be received while a netif is down (just
201 like DHCP during configuration)
203 2010-05-22: Simon Goldschmidt
204 * many many files: bug #27352: removed packing from ip_addr_t, the packed
205 version is now only used in protocol headers. Added global storage for
206 current src/dest IP address while in input functions.
208 2010-05-16: Simon Goldschmidt
209 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
210 calculation (and use them throughout the stack where applicable)
212 2010-05-16: Simon Goldschmidt
213 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
214 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
216 2010-05-16: Simon Goldschmidt
217 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
218 MEMP pool instead of the heap
220 2010-05-13: Simon Goldschmidt
221 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
222 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
223 packets to more than one pcb.
225 2010-05-02: Simon Goldschmidt
226 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
227 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
229 2010-04-30: Simon Goldschmidt
230 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
231 take a precalculated checksum, added pbuf_fill_chksum() to copy data
232 into a pbuf and at the same time calculating the checksum for that data
234 2010-04-29: Simon Goldschmidt
235 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
236 2-byte-aligned IP addresses and MAC addresses
238 2010-04-28: Patch by Bill Auerbach
239 * ip.c: Inline generating IP checksum to save a function call
241 2010-04-14: Simon Goldschmidt
242 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
243 tcpip_thread processes messages or timeouts to implement a watchdog.
245 2010-03-28: Simon Goldschmidt
246 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
247 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
249 2010-03-27: Simon Goldschmidt
250 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
251 etharp_query to prevent unnecessary function calls (inspired by
254 2010-03-20: Simon Goldschmidt
255 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
256 since the linker cannot do this automatically to save space.
258 2010-03-20: Simon Goldschmidt
259 * opt.h, etharp.c/.h: Added support for static ARP table entries
261 2010-03-14: Simon Goldschmidt
262 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
263 when creating TCP segments, not when (re-)transmitting them.
265 2010-03-07: Simon Goldschmidt
266 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
267 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
268 This should speed up receiving data on sockets as the select code in
269 event_callback is only executed when select is waiting.
271 2010-03-06: Simon Goldschmidt
272 * tcp_out.c: task #7013 (Create option to have all packets delivered to
273 netif->output in one piece): Always copy to try to create single pbufs
276 2010-03-06: Simon Goldschmidt
277 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
278 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
279 for tcp netconns to receive pbufs, not netbufs; use that function
282 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
283 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
284 Work on tcp_enqueue: Don't waste memory when chaining segments,
285 added option TCP_OVERSIZE to prevent creating many small pbufs when
286 calling tcp_write with many small blocks of data. Instead, pbufs are
287 allocated larger than needed and the space is used for later calls to
290 2010-02-21: Simon Goldschmidt
291 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
294 2010-02-21: Simon Goldschmidt
295 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
296 implementation of tcp to make API usage cleare to application programmers
298 2010-02-14: Simon Goldschmidt/Stephane Lesage
299 * ip_addr.h: Improved some defines working on ip addresses, added faster
300 macro to copy addresses that cannot be NULL
302 2010-02-13: Simon Goldschmidt
303 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
304 blocking send operation)
306 2010-02-12: Simon Goldschmidt
307 * sockets.c/.h: Added a minimal version of posix fctl() to have a
308 standardised way to set O_NONBLOCK for nonblocking sockets.
310 2010-02-12: Simon Goldschmidt
311 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
312 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
313 and dhcp work with user-allocated structs instead of callin mem_malloc
315 2010-02-12: Simon Goldschmidt/Jeff Barber
316 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
317 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
319 2010-02-12: Simon Goldschmidt
320 * sys layer: task #10139 (Prefer statically allocated memory): converted
321 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
322 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
323 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
324 to let sys.h use binary semaphores instead of mutexes - as before)
326 2010-02-09: Simon Goldschmidt (Simon Kallweit)
327 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
328 (Restart system timeout handling)
330 2010-02-09: Simon Goldschmidt
331 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
332 netif.c) - loopif does not have to be created by the port any more,
333 just define LWIP_HAVE_LOOPIF to 1.
335 2010-02-08: Simon Goldschmidt
336 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
337 inet_ntoa_r/ipaddr_ntoa_r
339 2010-02-08: Simon Goldschmidt
340 * netif.h: Added netif_s/get_igmp_mac_filter() macros
342 2010-02-05: Simon Goldschmidt
343 * netif.h: Added function-like macros to get/set the hostname on a netif
345 2010-02-04: Simon Goldschmidt
346 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
347 make changing the actual implementation behind the typedef easier.
349 2010-02-01: Simon Goldschmidt
350 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
351 for allocating memory when getaddrinfo() is called.
353 2010-01-31: Simon Goldschmidt
354 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
355 them once instead of parsing for every option. This also removes
356 the need for mem_malloc from dhcp_recv and makes it possible to
357 correctly retrieve the BOOTP file.
359 2010-01-30: simon Goldschmidt
360 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
363 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
364 * api.h, api_msg.c, sockets.c: Added except set support in select
367 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
368 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
369 Add non-blocking support for connect (partly from patch #6860),
370 plus many cleanups in socket & netconn API.
372 2010-01-27: Simon Goldschmidt
373 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
374 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
376 2010-01-26: Simon Goldschmidt
377 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
379 2010-01-14: Simon Goldschmidt
380 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
381 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
383 2010-01-13: Simon Goldschmidt
384 * mem.c: The heap now may be moved to user-defined memory by defining
385 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
386 (patch #6966 and bug #26133)
388 2010-01-10: Simon Goldschmidt (Bill Auerbach)
389 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
392 2010-01-10: Simon Goldschmidt
393 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
394 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
396 2009-12-31: Simon Goldschmidt
397 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
398 added timers.c/.h: Separated timer implementation from semaphore/mbox
399 implementation, moved timer implementation to timers.c/.h, timers are
400 now only called from tcpip_thread or by explicitly checking them.
403 2009-12-27: Simon Goldschmidt
404 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
405 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
410 2011-04-20: Simon Goldschmidt
411 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
413 2011-04-13: Simon Goldschmidt
414 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
415 using ports in the IANA private/dynamic range (49152 through 65535).
417 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
418 * etharp.h/.c: Fixed broken VLAN support.
420 2011-03-27: Simon Goldschmidt
421 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
422 pcbs) by checking if the pcb was bound (local_port != 0).
424 2011-03-27: Simon Goldschmidt
425 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
427 2011-03-27: Simon Goldschmidt
428 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
429 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
431 2011-03-27: Simon Goldschmidt
432 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
433 is present never times out) by starting retransmission timer before checking
436 2011-03-22: Simon Goldschmidt
437 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
438 calling sio_read_abort() if the file descriptor is valid.
440 2011-03-14: Simon Goldschmidt
441 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
442 more than once can render a socket useless) since it mainly involves changing
443 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
445 2011-03-13: Simon Goldschmidt
446 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
447 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
448 use EALRADY instead of -1
450 2011-03-13: Simon Goldschmidt
451 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
452 connection has been aborted by err_tcp (since this is not a normal closing
455 2011-03-13: Simon Goldschmidt
456 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
457 with pcb->state != CLOSED
459 2011-02-17: Simon Goldschmidt
460 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
463 2011-02-17: Simon Goldschmidt
464 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
466 2011-01-24: Simon Goldschmidt
467 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
469 2010-12-02: Simon Goldschmidt
470 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
472 2010-11-23: Simon Goldschmidt
473 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
474 LWIP_SO_RCVBUF and ioctl/FIONREAD.
476 2010-11-23: Simon Goldschmidt
477 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
478 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
480 2010-11-23: Simon Goldschmidt
481 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
482 refusing 'refused_data' again.
484 2010-11-22: Simon Goldschmidt
485 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
486 after a successful nonblocking connection.
488 2010-11-22: Simon Goldschmidt
489 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
490 must be sent link-local
492 2010-11-22: Simon Goldschmidt
493 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
496 2010-11-20: Simon Goldschmidt
497 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
499 2010-11-20: Simon Goldschmidt
500 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
501 resemble other stacks.
503 2010-11-20: Simon Goldschmidt
504 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
505 no-copy TCP writes will never succeed.
507 2010-11-20: Simon Goldschmidt
508 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
509 not match documentation: return ERR_ARG instead of ERR_VAL if not
510 initialized or wrong argument.
512 2010-10-20: Simon Goldschmidt
513 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
515 2010-10-05: Simon Goldschmidt
516 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
517 replugging the network cable after an AutoIP address was assigned.
519 2010-08-10: Simon Goldschmidt
520 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
522 2010-08-03: Simon Goldschmidt
523 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
525 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
526 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
527 endian architectures)
529 2010-07-28: Simon Goldschmidt
530 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
533 2010-07-27: Simon Goldschmidt
534 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
535 harm but never did anything
537 2010-07-21: Simon Goldschmidt
538 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
541 2010-07-16: Kieran Mansley
542 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
544 2010-07-10: Simon Goldschmidt
545 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
547 2010-06-30: Simon Goldschmidt
548 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
551 2010-06-28: Kieran Mansley
552 * timers.c remove unportable printing of C function pointers
554 2010-06-24: Simon Goldschmidt
555 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
556 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
558 2010-06-24: Simon Goldschmidt
559 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
560 implemented shutdown at socket level.
562 2010-06-21: Simon Goldschmidt
563 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
564 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
565 custom pbufs that reference other (original) pbufs. Additionally set
566 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
568 2010-06-15: Simon Goldschmidt
569 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
571 2010-06-14: Simon Goldschmidt
572 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
574 2010-06-12: Simon Goldschmidt
575 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
578 2010-05-17: Simon Goldschmidt
579 * netdb.c: Correctly NULL-terminate h_addr_list
581 2010-05-16: Simon Goldschmidt
582 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
583 "symbol already defined" i.e. when linking to winsock
585 2010-05-05: Simon Goldschmidt
586 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
589 2010-04-21: Simon Goldschmidt
590 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
593 2010-03-28: Luca Ceresoli
594 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
596 2010-03-27: Luca Ceresoli
597 * mib2.c: patch #7130: remove meaningless const qualifiers
599 2010-03-26: Simon Goldschmidt
600 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
602 2010-03-26: Simon Goldschmidt
603 * various files: Fixed compiling with different options disabled (TCP/UDP),
604 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
606 2010-03-25: Simon Goldschmidt
607 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
609 2010-03-25: Simon Goldschmidt
610 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
611 overrunning our rcv_wnd in ooseq case.
613 2010-03-22: Simon Goldschmidt
614 * tcp.c: tcp_listen() did not copy the pcb's prio.
616 2010-03-19: Simon Goldschmidt
617 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
619 2010-03-14: Simon Goldschmidt
620 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
621 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
622 and basing PBUF_LINK_HLEN on it.
624 2010-03-08: Simon Goldschmidt
625 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
626 when assiging routable address): when checking incoming packets and
627 aborting existing connection on address change, filter out link-local
630 2010-03-06: Simon Goldschmidt
631 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
633 2010-03-06: Simon Goldschmidt
634 * ipv4/ip.c: Don't try to forward link-local addresses
636 2010-03-06: Simon Goldschmidt
637 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
640 2010-03-05: Simon Goldschmidt
641 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
644 2010-03-05: Simon Goldschmidt
645 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
646 into multiple calls to tcp_write.
648 2010-02-21: Simon Goldschmidt
649 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
650 the implementation of DNS_USES_STATIC_BUF==1)
652 2010-02-20: Simon Goldschmidt
653 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
654 close() vs. shutdown(). Now the application does not get any more
655 recv callbacks after calling tcp_close(). Added tcp_shutdown().
657 2010-02-19: Simon Goldschmidt
658 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
659 confusion with realloc()
661 2010-02-15: Simon Goldschmidt/Stephane Lesage
662 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
665 2010-02-14: Simon Goldschmidt
666 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
667 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
668 admin-status of a netif are up
670 2010-02-14: Simon Goldschmidt
671 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
672 reception and is not really necessary
674 2010-02-14: Simon Goldschmidt
675 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
676 request was directed as us (RFC 826, Packet Reception), otherwise
677 only update existing entries; internalized some functions
679 2010-02-14: Simon Goldschmidt
680 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
681 disabled on netif used for PPPoE) by adding a new netif flag
682 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
683 device but prevents usage of ARP (so that ethernet_input can be used
686 2010-02-12: Simon Goldschmidt
687 * netif.c: netif_set_link_up/down: only do something if the link state
690 2010-02-12: Simon Goldschmidt/Stephane Lesage
691 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
694 2010-02-12: Simon Goldschmidt
695 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
697 2010-02-09: Simon Goldschmidt
698 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
699 (recv() makes receive window update for data that wasn't received by
702 2010-02-09: Simon Goldschmidt/Stephane Lesage
703 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
704 or any netconn_recv() error)
706 2010-02-09: Simon Goldschmidt
707 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
709 2010-02-09: Simon Goldschmidt
710 * netif.c: For loopback packets, adjust the stats- and snmp-counters
711 for the loopback netif.
713 2010-02-08: Simon Goldschmidt
714 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
715 since they are not used anywhere else.
717 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
718 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
719 (patch from bug #28798)
721 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
722 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
723 another bug when LWIP_RAND() returns zero.
725 2010-02-04: Simon Goldschmidt
726 * nearly every file: Use macros defined in ip_addr.h (some of them new)
727 to work with IP addresses (preparation for bug #27352 - Change ip_addr
728 from struct to typedef (u32_t) - and better code).
730 2010-01-31: Simon Goldschmidt
731 * netif.c: Don't call the link-callback from netif_set_up/down() since
732 this invalidly retriggers DHCP.
734 2010-01-29: Simon Goldschmidt
735 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
736 portability file inet.h and its contents from the stack: moved htonX-
737 functions to def.h (and the new def.c - they are not ipv4 dependent),
738 let inet.h depend on ip_addr.h and not the other way round.
739 This fixes bug #28732.
741 2010-01-28: Kieran Mansley
742 * tcp.c: Ensure ssthresh >= 2*MSS
744 2010-01-27: Simon Goldschmidt
745 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
746 callback can lead to accessing unallocated memory. As a consequence,
747 ERR_ABRT means the application has called tcp_abort()!
749 2010-01-25: Simon Goldschmidt
750 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
751 not implemented in SNMP): write-only or not-accessible are still
752 returned by getnext (though not by get)
754 2010-01-24: Simon Goldschmidt
755 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
756 not use reserved C/C++ keywords
758 2010-01-23: Simon Goldschmidt
759 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
762 2010-01-21: Simon Goldschmidt
763 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
764 if tcp_enqueue fails) both in raw- and netconn-API
766 2010-01-19: Simon Goldschmidt
767 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
769 2010-01-18: Iordan Neshev/Simon Goldschmidt
770 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
771 bugfix backports from 2.4.x.
773 2010-01-18: Simon Goldschmidt
774 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
776 2010-01-17: Simon Goldschmidt
777 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
778 task #10102: "netconn: clean up conn->err threading issues" by adding
779 error return value to struct api_msg_msg
781 2010-01-17: Simon Goldschmidt
782 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
783 to return err_t (bugs #27709 and #28087)
785 2010-01-14: Simon Goldschmidt
786 * ...: Use typedef for function prototypes throughout the stack.
788 2010-01-13: Simon Goldschmidt
789 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
790 window = 0) by correctly draining recvmbox/acceptmbox
792 2010-01-11: Simon Goldschmidt
793 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
794 erroneous callbacks) by copying the code from recent pppd
796 2010-01-10: Simon Goldschmidt
797 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
799 2010-01-10: Simon Goldschmidt
800 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
802 2010-01-08: Simon Goldschmidt
803 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
805 2010-01-08: Simon Goldschmidt
806 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
807 passed to dns_local_addhost() might be volatile
809 2010-01-07: Simon Goldschmidt
810 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
812 2010-01-06: Simon Goldschmidt
813 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
815 2009-12-31: Simon Goldschmidt
816 * many ppp files: Reorganised PPP source code from ucip structure to pppd
817 structure to easily compare our code against the pppd code (around v2.3.1)
819 2009-12-27: Simon Goldschmidt
820 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
828 2009-10-27 Simon Goldschmidt/Stephan Lesage
829 * netifapi.c/.h: Added netifapi_netif_set_addr()
831 2009-10-07 Simon Goldschmidt/Fabian Koch
832 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
833 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
835 2009-08-26 Simon Goldschmidt/Simon Kallweit
836 * slipif.c/.h: bug #26397: SLIP polling support
838 2009-08-25 Simon Goldschmidt
839 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
840 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
842 2009-08-25 Simon Goldschmidt
843 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
845 2009-08-24 Jakob Stoklund Olesen
846 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
847 to netif_set_link_up().
849 2009-08-23 Simon Goldschmidt
850 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
851 to a human-readable string.
855 2009-12-24: Kieran Mansley
856 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
859 2009-12-06: Simon Goldschmidt
860 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
861 be statically allocated (like in ucip)
863 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
864 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
866 2009-12-03: Simon Goldschmidt
867 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
868 could have non-zero length
870 2009-12-02: Simon Goldschmidt
871 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
872 tcp_input_pcb until after calling the pcb's callbacks
874 2009-11-29: Simon Goldschmidt
875 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
876 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
878 2009-11-29: Simon Goldschmidt
879 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
880 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
882 2009-11-26: Simon Goldschmidt
883 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
886 2009-11-26: Simon Goldschmidt
887 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
888 algorithm at PCB level
890 2009-11-22: Simon Goldschmidt
891 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
893 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
894 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
895 reusing time-wait pcb
897 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
898 * sockets.c: Fixed bug #28062: Data received directly after accepting
899 does not wake up select
901 2009-11-11: Simon Goldschmidt
902 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
904 2009-10-30: Simon Goldschmidt
905 * opt.h: Increased default value for TCP_MSS to 536, updated default
906 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
908 2009-10-28: Kieran Mansley
909 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
910 to follow algorithm from TCP/IP Illustrated
912 2009-10-27: Kieran Mansley
913 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
915 2009-10-25: Simon Goldschmidt
916 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
917 pcb->recv is NULL to keep rcv_wnd correct)
919 2009-10-25: Simon Goldschmidt
920 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
922 2009-10-23: Simon Goldschmidt (David Empson)
923 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
925 2009-10-21: Simon Goldschmidt
926 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
927 trailing 1 byte len (SYN/FIN)
929 2009-10-21: Simon Goldschmidt
930 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
932 2009-10-19: Simon Goldschmidt
933 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
934 conditional code to assert where applicable), check pbuf length before
935 testing for valid reply
937 2009-10-19: Simon Goldschmidt
938 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
939 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
941 2009-10-16: Simon Goldschmidt
942 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
943 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
946 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
947 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
949 2009-10-15: Simon Goldschmidt
950 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
953 2009-10-15: Simon Goldschmidt
954 * autoip.c: Fixed bug #27704: autoip starts with wrong address
955 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
956 of network byte order
958 2009-10-11 Simon Goldschmidt (Jörg Kesten)
959 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
960 which are not consecutive when retransmitting unacked segments
962 2009-10-09 Simon Goldschmidt
963 * opt.h: Fixed default values of some stats to only be enabled if used
964 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
966 2009-08-30 Simon Goldschmidt
967 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
968 function" by checking for loopback before calling ip_frag
970 2009-08-25 Simon Goldschmidt
971 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
973 2009-08-23 Simon Goldschmidt
974 * ppp.c: bug #27078: Possible memory leak in pppInit()
976 2009-08-23 Simon Goldschmidt
977 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
980 2009-08-23 Simon Goldschmidt
981 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
982 Fixed wrong parenthesis, added check in init.c
984 2009-08-23 Simon Goldschmidt
985 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
987 2009-08-23 Simon Goldschmidt
988 * many ppp files: bug #27267: Added include to string.h where needed
990 2009-08-23 Simon Goldschmidt
991 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
998 2009-05-10 Simon Goldschmidt
999 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1000 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1001 one pbuf to help MACs that don't support scatter-gather DMA.
1003 2009-05-09 Simon Goldschmidt
1004 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1005 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1007 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1008 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1009 extended info about the currently received packet.
1011 2009-04-27 Simon Goldschmidt
1012 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1014 2009-04-25 Simon Goldschmidt
1015 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1016 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1018 2009-04-21 Simon Goldschmidt
1019 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1020 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1021 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1022 as an external function for lookup.
1024 2009-04-15 Simon Goldschmidt
1025 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1027 2009-03-31 Kieran Mansley
1028 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1029 TCP timestamp options, off by default. Rework tcp_enqueue() to
1030 take option flags rather than specified option data
1032 2009-02-18 Simon Goldschmidt
1033 * cc.h: Added printf formatter for size_t: SZT_F
1035 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1036 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1039 2009-02-12 Simon Goldschmidt
1040 * init.h: Added LWIP_VERSION to get the current version of the stack
1042 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1043 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1044 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1047 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1048 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1049 is only used by UDPLITE at present, so conditionalise it.
1051 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1052 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1053 "seed" address. This should reduce AUTOIP conflicts if
1054 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1056 2008-10-02 Jonathan Larmour and Rishi Khan
1057 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1060 2008-06-30 Simon Goldschmidt
1061 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1062 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1063 mem_free to run between mem_malloc iterations. Added illegal counter for
1066 2008-06-27 Simon Goldschmidt
1067 * stats.h/.c, some other files: patch #6483: stats module improvement:
1068 Added defines to display each module's statistic individually, added stats
1069 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1071 2008-06-17 Simon Goldschmidt
1072 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1073 (define LWIP_ERR_T in cc.h)
1075 2008-06-17 Simon Goldschmidt
1076 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1079 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1080 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1081 modified version of patch # 6370: Moved loopif code to netif.c so that
1082 loopback traffic is supported on all netifs (all local IPs).
1083 Added option to limit loopback packets for each netifs.
1087 2009-08-12 Kieran Mansley
1088 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1089 out of window or out of order properly
1091 2009-08-12 Kieran Mansley
1092 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1094 2009-07-28 Simon Goldschmidt
1095 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1097 2009-07-27 Kieran Mansley
1098 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1100 2009-07-09 Kieran Mansley
1101 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1102 recv_avail and don't increment counters until message successfully
1105 2009-06-25 Kieran Mansley
1106 * api_msg.c api.h: BUG26722: initialise netconn write variables
1109 2009-06-25 Kieran Mansley
1110 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1112 2009-06-25 Kieran Mansley
1113 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1114 simultaneous close behaviour, and make snd_nxt have the same meaning
1117 2009-05-12 Simon Goldschmidt
1118 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1119 arp_table / uses etharp_query" by adding etharp_gratuitous()
1121 2009-05-12 Simon Goldschmidt
1122 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1123 to the IP header (used by igmp_ip_output_if)
1125 2009-05-06 Simon Goldschmidt
1126 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1127 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1129 2009-05-05 Simon Goldschmidt
1130 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1133 2009-05-04 Simon Goldschmidt
1134 * init.c: snmp was not initialized in lwip_init()
1136 2009-05-04 Frédéric Bernon
1137 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1139 2009-05-03 Simon Goldschmidt
1140 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1141 (and unsent->next == NULL)
1143 2009-05-02 Simon Goldschmidt
1144 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1145 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1147 2009-05-02 Simon Goldschmidt
1148 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1150 2009-05-01 Simon Goldschmidt
1151 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1153 2009-05-01 Simon Goldschmidt
1154 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1156 2009-04-29 Frédéric Bernon
1157 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1158 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1159 of broadcast packets even when this option wasn't set. Port maintainers
1160 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1161 If you want this option also filter broadcast on recv operations, you also
1162 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1164 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1165 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1166 DHCP/AUTOIP cooperation
1168 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1169 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1170 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1171 right place in tcp_output and tcp_rexmit).
1173 2009-04-25 Simon Goldschmidt
1174 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1175 when debugging": memp_sizes contained the wrong sizes (including sanity
1176 regions); memp pools for MEM_USE_POOLS were too small
1178 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1179 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1180 behavior, with with ip address string not ended by a '\0', a space or a
1183 2009-04-19 Simon Goldschmidt
1184 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1185 pcb->err is called, not pcb->connected (with an error code).
1187 2009-04-19 Simon Goldschmidt
1188 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1189 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1191 2009-04-19 Simon Goldschmidt
1192 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1193 in the header pbuf, not the data pbuf)
1195 2009-04-18 Simon Goldschmidt
1196 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1198 2009-04-15 Simon Goldschmidt
1199 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1201 2009-04-15 Simon Goldschmidt
1202 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1204 2009-04-15 Simon Goldschmidt
1205 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1206 ip_hinted_output() (for smaller code mainly)
1208 2009-04-15 Simon Goldschmidt
1209 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1211 2009-04-15 Simon Goldschmidt
1212 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1213 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1214 is big enough in dhcp_start
1216 2009-04-15 Simon Goldschmidt
1217 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1219 2009-04-15 Simon Goldschmidt
1220 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1222 2009-04-15 Simon Goldschmidt
1223 * sockets.c: bug #26121: set_errno can be overridden
1225 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1226 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1229 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1230 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1233 2009-03-31 Kieran Mansley
1234 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1235 updates are calculated and sent (BUG20515)
1237 * tcp_in.c: cope with SYN packets received during established states,
1238 and retransmission of initial SYN.
1240 * tcp_out.c: set push bit correctly when tcp segments are merged
1242 2009-03-27 Kieran Mansley
1243 * tcp_out.c set window correctly on probes (correcting change made
1246 2009-03-26 Kieran Mansley
1247 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1248 connections where no reset required (bug #25622)
1250 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1253 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1254 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1255 too small depending on MEM_ALIGNMENT
1257 2009-02-16 Simon Goldschmidt
1258 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1259 converted size argument of netconn_write to 'size_t'
1261 2009-02-16 Simon Goldschmidt
1262 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1263 by moving accept callback function pointer to TCP_PCB_COMMON
1265 2009-02-12 Simon Goldschmidt
1266 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1269 2009-02-11 Simon Goldschmidt
1270 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1272 2009-02-11 Simon Goldschmidt
1273 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1274 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1276 2009-02-10 Simon Goldschmidt
1277 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1278 Accepts_pending is decrease on a corresponding listen pcb when a connection
1279 in state SYN_RCVD is close.
1281 2009-01-28 Jonathan Larmour
1282 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1285 2008-12-19 Simon Goldschmidt
1286 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1288 2008-12-10 Tamas Somogyi, Frédéric Bernon
1289 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1290 port uses deleted netbuf.
1292 2008-10-18 Simon Goldschmidt
1293 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1296 2008-10-15 Simon Goldschmidt
1297 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1298 by packing the struct ip_reass_helper.
1300 2008-10-03 David Woodhouse, Jonathan Larmour
1301 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1303 2008-10-02 Jonathan Larmour
1304 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1305 padding is included.
1307 2008-09-30 Jonathan Larmour
1308 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1309 assertion check that addrlen isn't NULL.
1311 2008-09-30 Jonathan Larmour
1312 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1314 2008-08-26 Simon Goldschmidt
1315 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1316 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1318 2008-08-14 Simon Goldschmidt
1319 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1320 tcp_close returns != ERR_OK)
1322 2008-07-08 Frédéric Bernon
1323 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1324 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1326 2008-06-24 Jonathan Larmour
1327 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1328 if tcp_seg_copy fails.
1330 2008-06-17 Simon Goldschmidt
1331 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1332 and created defines for swapping bytes and folding u32 to u16.
1334 2008-05-30 Kieran Mansley
1335 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1336 rather than rcv_ann_wnd when deciding if packets are in-window.
1337 Contributed by <arasmussen@consultant.datasys.swri.edu>
1339 2008-05-30 Kieran Mansley
1340 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1341 passing as function pointers when MEM_LIBC_MALLOC is defined.
1343 2008-05-09 Jonathan Larmour
1344 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1345 stop it being treated as a fatal error.
1347 2008-04-15 Simon Goldschmidt
1348 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1351 2008-03-27 Simon Goldschmidt
1352 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1353 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1354 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1355 or heap memory from interrupt context
1357 2008-03-26 Simon Goldschmidt
1358 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1359 host sent a zero mss as TCP option.
1366 2008-03-10 Jonathan Larmour
1367 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1368 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1370 2008-01-22 Frédéric Bernon
1371 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1372 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1374 2008-01-14 Frédéric Bernon
1375 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1376 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1377 tcp_recv callback (see rawapi.txt).
1379 2008-01-14 Frédéric Bernon, Marc Chaland
1380 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1382 2008-01-12 Frédéric Bernon
1383 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1384 netconn::sem per netconn::op_completed like suggested for the task #7490
1385 "Add return value to sys_mbox_post".
1387 2008-01-12 Frédéric Bernon
1388 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1389 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1390 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1392 2008-01-10 Frédéric Bernon
1393 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1394 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1395 "blocking" ("block" parameter = 1).
1397 2008-01-10 Frédéric Bernon
1398 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1399 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1400 "Add return value to sys_mbox_post".
1402 2008-01-05 Frédéric Bernon
1403 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1404 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1405 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1406 indicate the number of pointers query by the mailbox. There is three defines
1407 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1408 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1409 parameter in your implementation, but to ignore it to keep the previous behavior.
1410 The new sys_mbox_trypost function return a value to know if the mailbox is
1411 full or if the message is posted. Take a look to sys_arch.txt for more details.
1412 This new function is used in tcpip_input (so, can be called in an interrupt
1413 context since the function is not blocking), and in recv_udp and recv_raw.
1415 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1416 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1417 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1418 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1419 documentation in the rawapi.txt file.
1421 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1422 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1424 2007-12-31 Frédéric Bernon, Luca Ceresoli
1425 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1426 in autoip". The change in etharp_raw could be removed, since all calls to
1427 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1428 wrong in the future.
1430 2007-12-30 Frédéric Bernon, Tom Evans
1431 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1432 Filtering" reported by Tom Evans.
1434 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1435 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1436 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1437 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1438 keep accepting new connections.
1440 2007-12-13 Frédéric Bernon
1441 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1442 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1444 2007-12-12 Frédéric Bernon
1445 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1446 are the one which have ram usage.
1448 2007-12-05 Frédéric Bernon
1449 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1450 set of variables (=0) or a local one (=1). In this last case, your port should
1451 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1452 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1454 2007-12-03 Simon Goldschmidt
1455 * ip.c: ip_input: check if a packet is for inp first before checking all other
1456 netifs on netif_list (speeds up packet receiving in most cases)
1458 2007-11-30 Simon Goldschmidt
1459 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1460 UDP: move a (connected) pcb selected for input to the front of the list of
1461 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1464 2007-11-28 Simon Goldschmidt
1465 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1467 2007-11-25 Simon Goldschmidt
1468 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1471 2007-11-24 Simon Goldschmidt
1472 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1473 to the new file netdb.c; included lwip_getaddrinfo.
1475 2007-11-21 Simon Goldschmidt
1476 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1477 based on the MTU of the netif used to send. Enabled by default. Disable by
1478 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1480 2007-11-19 Frédéric Bernon
1481 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1482 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1483 copy dns payload to parse the response), return an error if there is no place
1484 for a new query, and fix some minor problems.
1486 2007-11-16 Simon Goldschmidt
1487 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1488 removed files: core/inet.c, core/inet6.c
1489 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1490 inet and chksum part; changed includes in all lwIP files as appropriate
1492 2007-11-16 Simon Goldschmidt
1493 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1494 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1495 (gethostbyname/gethostbyname_r).
1497 2007-11-15 Jim Pettinato, Frédéric Bernon
1498 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1499 requests with RAW api interface. Initialization is done in lwip_init() with
1500 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1501 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1502 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1503 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1504 list with points to improve.
1506 2007-11-06 Simon Goldschmidt
1507 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1508 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1509 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1511 2007-11-06 Simon Goldschmidt
1512 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1513 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1514 implementation from netconn api applications.
1516 2007-11-03 Frédéric Bernon
1517 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1518 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1519 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1520 it. This is a first release which have to be improve for TCP. Note it used the
1521 netconn::recv_avail which need to be more "thread-safe" (note there is already
1522 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1524 2007-11-01 Frédéric Bernon, Marc Chaland
1525 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1526 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1527 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1528 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1529 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1531 2007-10-24 Frédéric Bernon
1532 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1533 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1534 some code (like we have talk in "patch #5919 : Create compile switch to remove
1535 select code"), but it could be done later.
1537 2007-10-08 Simon Goldschmidt
1538 * many files: Changed initialization: many init functions are not needed any
1539 more since we now rely on the compiler initializing global and static
1542 2007-10-06 Simon Goldschmidt
1543 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1544 to enqueue the received pbufs so that multiple packets can be reassembled
1545 simultaneously and no static reassembly buffer is needed.
1547 2007-10-05 Simon Goldschmidt
1548 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1549 all netifs (or ports) can use it.
1551 2007-10-05 Frédéric Bernon
1552 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1553 common function to reduce a little bit the footprint (for all functions using
1554 only the "netif" parameter).
1556 2007-10-03 Frédéric Bernon
1557 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1558 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1559 a little bit the footprint (for all functions using only the "netif" parameter).
1561 2007-09-15 Frédéric Bernon
1562 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1563 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1564 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1565 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1567 2007-09-10 Frédéric Bernon
1568 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1569 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1570 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1571 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1572 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1573 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1574 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1575 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1576 when it's queried (any direct call to "sysuptime" is changed by a call to
1577 snmp_get_sysuptime).
1579 2007-09-09 Frédéric Bernon, Bill Florac
1580 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1581 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1582 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1583 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1584 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1585 the next query message to receive the matching multicast streams).
1587 2007-09-08 Frédéric Bernon
1588 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1589 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1590 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1591 Enable to access to these fields with LWIP_TCP=0.
1593 2007-09-05 Frédéric Bernon
1594 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1595 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1596 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1597 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1598 help to reduce footprint, and to reduce "visibility" on the Internet.
1600 2007-09-05 Frédéric Bernon, Bill Florac
1601 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1602 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1603 parameters have to be provided: a task name, and a task stack size. For this
1604 one, since it's platform dependant, you could define the best one for you in
1605 your lwipopts.h. For port maintainers, you can just add these new parameters
1606 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1609 2007-09-05 Frédéric Bernon
1610 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1611 inside init.c for task #7142 "Sanity check user-configurable values".
1613 2007-09-04 Frédéric Bernon, Bill Florac
1614 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1615 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1616 value). It will avoid potential fragmentation problems, use a counter to know
1617 how many times a group is used on an netif, and free it when all applications
1618 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1619 check if LWIP_IGMP!=0).
1621 2007-09-03 Frédéric Bernon
1622 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1623 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1624 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1625 and/or the "interface" field (for netconn layer), for join/leave operations.
1626 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1627 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1629 2007-08-30 Frédéric Bernon
1630 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1631 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1632 with other API (application based on raw API, or future "socket2" API). Ports
1633 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1635 2007-08-30 Frédéric Bernon, Jonathan Larmour
1636 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1637 user-configurable values".
1639 2007-08-29 Frédéric Bernon
1640 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1641 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1642 spirit than the others modules. Modify some IGMP debug traces.
1644 2007-08-29 Frédéric Bernon
1645 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1646 Add lwip_init function to regroup all modules initializations, and to provide
1647 a place to add code for task #7142 "Sanity check user-configurable values".
1648 Ports maintainers should remove direct initializations calls from their code,
1649 and add init.c in their makefiles. Note that lwip_init() function is called
1650 inside tcpip_init, but can also be used by raw api users since all calls are
1651 disabled when matching options are disabled. Also note that their is new options
1652 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1654 2007-08-26 Marc Boucher
1655 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1656 since they can under certain circumstances be called with an invalid conn
1657 pointer after the connection has been closed (and conn has been freed).
1659 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1660 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1661 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1663 2007-08-22 Frédéric Bernon
1664 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1665 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1667 2007-08-22 Frédéric Bernon
1668 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1669 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1670 name is tcpip_input (we keep the name of 1.2.0 function).
1672 2007-08-17 Jared Grubb
1673 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1674 settings into new memp_std.h and optional user file lwippools.h. This adds
1675 more dynamic mempools, and allows the user to create an arbitrary number of
1676 mempools for mem_malloc.
1678 2007-08-16 Marc Boucher
1679 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1680 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1681 close the connection.
1683 2007-08-16 Marc Boucher
1684 * sockets.c: lwip_accept(): check netconn_peer() error return.
1686 2007-08-16 Marc Boucher
1687 * mem.c, mem.h: Added mem_calloc().
1689 2007-08-16 Marc Boucher
1690 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1691 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1692 and starving other message types.
1693 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1695 2007-08-16 Marc Boucher
1696 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1697 type and flgs (later renamed to flags).
1698 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1699 Improved lwip_recvfrom(). TCP push now propagated.
1701 2007-08-16 Marc Boucher
1702 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1705 2007-08-16 Marc Boucher
1706 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1707 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1708 Added PPPoE support and various PPP improvements.
1710 2007-07-25 Simon Goldschmidt
1711 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1712 making netbuf_copy_partial use this function.
1714 2007-07-25 Simon Goldschmidt
1715 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1716 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1719 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1720 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1721 a link callback in the netif struct, and functions to handle it. Be carefull
1722 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1723 if you want to be sure to be compatible with future changes...
1725 2007-06-30 Frédéric Bernon
1726 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1728 2007-06-21 Simon Goldschmidt
1729 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1730 LWIP_AUTOIP =0 and =1 to remove redundant code.
1732 2007-06-21 Simon Goldschmidt
1733 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1734 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1735 heap. This both prevents memory fragmentation and gives a higher speed
1736 at the cost of more memory consumption. Turned off by default.
1738 2007-06-21 Simon Goldschmidt
1739 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1740 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1741 int to be able to send a bigger buffer than 64K with one time (mainly
1742 used from lwip_send).
1744 2007-06-21 Simon Goldschmidt
1745 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1746 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1748 2007-06-21 Simon Goldschmidt
1749 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1750 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1751 changes on low memory or empty send-buffer.
1753 2007-06-18 Simon Goldschmidt
1754 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1755 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1756 used for ethernet and struct eth_addr already had a defined length of 6).
1758 2007-06-17 Simon Goldschmidt
1759 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1760 to disable UDP checksum generation on transmit.
1762 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1763 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1764 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1765 this macro to check "conn" parameter in api_msg.c functions.
1767 2007-06-11 Simon Goldschmidt
1768 * sockets.c, sockets.h: Added UDP lite support for sockets
1770 2007-06-10 Simon Goldschmidt
1771 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1772 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1775 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1776 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1777 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1778 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1779 (see TODO mark in the source code).
1781 2007-06-09 Simon Goldschmidt
1782 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1783 etharp_output() to match netif->output so etharp_output() can be used
1784 directly as netif->output to save one function call.
1786 2007-06-08 Simon Goldschmidt
1787 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1788 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1789 added initialization of those to ethernetif, slipif and loopif.
1791 2007-05-18 Simon Goldschmidt
1792 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1793 (defaulting to off for now) that can be set to 0 to send fragmented
1794 packets by passing PBUF_REFs down the stack.
1796 2007-05-23 Frédéric Bernon
1797 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1798 connections, such present in patch #5959.
1800 2007-05-23 Frédéric Bernon
1801 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1802 code in only one part...
1804 2007-05-18 Simon Goldschmidt
1805 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1806 elements to overflow. This is achieved by adding some bytes before and after
1807 each pool element (increasing their size, of course), filling them with a
1808 prominent value and checking them on freeing the element.
1809 Set it to 2 to also check every element in every pool each time memp_malloc()
1810 or memp_free() is called (slower but more helpful).
1812 2007-05-10 Simon Goldschmidt
1813 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1814 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1817 2007-05-11 Frédéric Bernon
1818 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1819 Include a function pointer instead of a table index in the message to reduce
1820 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1821 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1823 2007-05-10 Simon Goldschmidt
1824 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1825 \ extern "C" {' in all header files. Now you can write your application using
1826 the lwIP stack in C++ and simply #include the core files. Note I have left
1827 out the netif/ppp/*h header files for now, since I don't know which files are
1828 included by applications and which are for internal use only.
1830 2007-05-09 Simon Goldschmidt
1831 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1832 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1833 situations where some compilers might inline the copy and save a function
1834 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1836 2007-05-08 Simon Goldschmidt
1837 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1838 to be overriden in case the C-library malloc implementation is not protected
1839 against concurrent access.
1841 2007-05-04 Simon Goldschmidt (Atte Kojo)
1842 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1843 multiple packets to the same host.
1845 2007-05-04 Frédéric Bernon, Jonathan Larmour
1846 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1847 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1848 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1849 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1850 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1851 these fields are now renamed "addr" & "port".
1853 2007-04-11 Jonathan Larmour
1854 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1855 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1856 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1857 by the port in sys_arch.h if desired.
1859 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1860 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1861 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1862 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1864 2007-04-05 Frédéric Bernon
1865 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1867 2007-04-04 Simon Goldschmidt
1868 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1869 use this for and architecture-independent form to tell the compiler you intentionally
1870 are not using this variable. Can be overriden in cc.h.
1872 2007-03-28 Frédéric Bernon
1873 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1874 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1875 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1876 It will be used by DHCP to register a client hostname, but can also be use when you call
1879 2007-03-28 Frédéric Bernon
1880 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1881 initialize a network interface's flag with. It tell this interface is an ethernet
1882 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1883 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1885 2007-03-26 Frédéric Bernon, Jonathan Larmour
1886 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1887 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1888 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1889 is done in tcpip_init function.
1891 2007-03-22 Frédéric Bernon
1892 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1893 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1894 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1895 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1896 but never used. Fix msg_in.c with the correct #if test for a stat display.
1898 2007-03-21 Kieran Mansley
1899 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1900 Provides callback on netif up/down state change.
1902 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1903 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1904 ip.c, netif.h, tcpip.c, opt.h:
1905 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1906 filter per all network interfaces. Declare a new function in netif to enable to
1907 control the MAC filter (to reduce lwIP traffic processing).
1909 2007-03-11 Frédéric Bernon
1910 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1911 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1912 unless you know what you're doing (default are RFC1122 compliant). Note
1913 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1915 2007-03-08 Frédéric Bernon
1916 * tcp.h: Keepalive values can be configured at compile time, but don't change
1917 this unless you know what you're doing (default are RFC1122 compliant).
1919 2007-03-08 Frédéric Bernon
1920 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1921 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1922 on UDP sockets/netconn.
1924 2007-03-08 Simon Goldschmidt
1925 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1927 2007-03-06 Frédéric Bernon
1928 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1929 Implement SO_RCVTIMEO on UDP sockets/netconn.
1931 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1932 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1933 on the stack and remove the API msg type from memp
1935 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1936 * sockets.h, sockets.c: Move socket initialization to new
1937 lwip_socket_init() function.
1938 NOTE: this changes the API with ports. Ports will have to be
1939 updated to call lwip_socket_init() now.
1941 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1942 * api_lib.c: Use memcpy in netbuf_copy_partial.
1947 2008-03-17 Frédéric Bernon, Ed Kerekes
1948 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1949 some problems to fill the IP header on some targets, use now the
1950 ip.h macros to do it).
1952 2008-03-13 Frédéric Bernon
1953 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1954 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1955 TCP connection caused a crash. Note that using (lwip_)recvfrom
1956 like this is a bit slow and that using (lwip)getpeername is the
1957 good lwip way to do it (so, using recv is faster on tcp sockets).
1959 2008-03-12 Frédéric Bernon, Jonathan Larmour
1960 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1961 recv_raw() does not consume data", and the ping sample (with
1962 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1963 returned the IP payload, without the IP header).
1965 2008-03-04 Jonathan Larmour
1966 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1967 and/or warnings on some systems where mem_size_t and size_t differ.
1968 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1970 2008-03-04 Kieran Mansley (contributions by others)
1971 * Numerous small compiler error/warning fixes from contributions to
1972 mailing list after 1.3.0 release candidate made.
1974 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1975 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1977 2008-01-15 Kieran Mansley
1978 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1979 prevented from sending by a small send window, not just a zero
1982 2008-01-09 Jonathan Larmour
1983 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1984 conflict with Linux system headers.
1986 2008-01-06 Jonathan Larmour
1987 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1988 address entirely on receiving a DHCPNAK, and restarting discovery.
1990 2007-12-21 Simon Goldschmidt
1991 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1992 is not protected" by using new macros for interlocked access to modify/test
1993 netconn->recv_avail.
1995 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1996 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1998 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1999 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2000 of silly window avoidance and prevent lwIP from shrinking the window)
2002 2007-12-04 Simon Goldschmidt
2003 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2004 data packet was lost): add assert that all segment lists are empty in
2005 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2006 state from LAST_ACK in tcp_process
2008 2007-12-02 Simon Goldschmidt
2009 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2010 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2011 has to be set to 0 in lwipopts.h
2013 2007-12-02 Simon Goldschmidt
2014 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2015 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2016 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2017 This is a fix for thread-safety and allocates all items needed for a netconn
2018 when the netconn is created.
2020 2007-11-30 Simon Goldschmidt
2021 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2022 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2023 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2024 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2026 2007-11-27 Simon Goldschmidt
2027 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2028 letting ip_route only use netifs that are up.
2030 2007-11-27 Simon Goldschmidt
2031 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2032 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2033 sockets block most operations once they have seen a fatal error.
2035 2007-11-27 Simon Goldschmidt
2036 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2037 netif to send as an argument (to be able to send on netifs that are down).
2039 2007-11-26 Simon Goldschmidt
2040 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2043 2007-11-21 Simon Goldschmidt
2044 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2045 Fixed the nagle algorithm; nagle now also works for all raw API applications
2046 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2048 2007-11-12 Frédéric Bernon
2049 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2050 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2051 context in do_getaddr.
2053 2007-11-10 Simon Goldschmidt
2054 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2055 happen any time). Now the packet simply isn't enqueued when out of memory.
2057 2007-11-01 Simon Goldschmidt
2058 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2059 TCP_MSS if that is smaller) as long as no MSS option is received from the
2062 2007-11-01 Simon Goldschmidt
2063 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2064 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2065 sending our configured TCP_MSS instead of the one received).
2067 2007-11-01 Simon Goldschmidt
2068 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2069 calculated based on the configured TCP_MSS, not on the MSS option received
2072 2007-10-09 Simon Goldschmidt
2073 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2074 short and also was generated wrong if checksum coverage != tot_len;
2075 receive: checksum was calculated wrong if checksum coverage != tot_len
2077 2007-10-08 Simon Goldschmidt
2078 * mem.c: lfree was not updated in mem_realloc!
2080 2007-10-07 Frédéric Bernon
2081 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2082 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2083 this change cause an API breakage for netconn_addr, since a parameter
2084 type change. Any compiler should cause an error without any changes in
2085 yours netconn_peer calls (so, it can't be a "silent change"). It also
2086 reduce a little bit the footprint for socket layer (lwip_getpeername &
2087 lwip_getsockname use now a common lwip_getaddrname function since
2088 netconn_peer & netconn_addr have the same parameters).
2090 2007-09-20 Simon Goldschmidt
2091 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2092 by checking tcp_tw_pcbs also
2094 2007-09-19 Simon Goldschmidt
2095 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2097 2007-09-15 Mike Kleshov
2098 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2100 2007-09-06 Frédéric Bernon
2101 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2102 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2103 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2104 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2106 2007-08-30 Frédéric Bernon
2107 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2108 and fix some coding style.
2110 2007-08-28 Frédéric Bernon
2111 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2112 kind of packets. These packets are considered like Ethernet packets (payload
2113 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2114 are considered like IP packets (payload pointing to iphdr).
2116 2007-08-27 Frédéric Bernon
2117 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2118 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2119 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2121 2007-08-24 Kieran Mansley
2122 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2123 compiler (Paradigm C++)
2125 2007-08-09 Frédéric Bernon, Bill Florac
2126 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2127 Introduce IGMP_STATS to centralize statistics management.
2129 2007-08-09 Frédéric Bernon, Bill Florac
2130 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2131 packet on a udp pcb binded on an netif's IP address, and not on "any".
2133 2007-08-09 Frédéric Bernon, Bill Florac
2134 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2135 This is mainly on using lookup/lookfor, and some coding styles...
2137 2007-07-26 Frédéric Bernon (and "thedoctor")
2138 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2140 2007-07-25 Simon Goldschmidt
2141 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2142 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2143 (tcp_output is called again later from tcp timers).
2145 2007-07-25 Simon Goldschmidt
2146 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2147 copy_from_pbuf, which illegally modified the given pbuf.
2149 2007-07-25 Simon Goldschmidt
2150 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2151 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2153 2007-07-24 Simon Goldschmidt
2154 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2155 correct state (must be CLOSED).
2157 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2158 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2159 allocation. It now returns NULL.
2161 2007-07-13 Frédéric Bernon
2162 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2165 2007-07-13 Frédéric Bernon
2166 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2167 because current code doesn't follow rawapi.txt documentation.
2169 2007-07-13 Kieran Mansley
2170 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2171 out of sequence processing of received packets
2173 2007-07-03 Simon Goldschmidt
2174 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2175 assumption is made that this pbuf is in one piece (i.e. not chained). These
2176 assumptions clash with the possibility of converting to fully pool-based
2177 pbuf implementations, where PBUF_RAM pbufs might be chained.
2179 2007-07-03 Simon Goldschmidt
2180 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2181 when closing tcp netconns: removed conn->sem, less context switches when
2182 closing, both netconn_close and netconn_delete should safely close tcp
2185 2007-07-02 Simon Goldschmidt
2186 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2187 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2188 to cache ARP table indices with each pcb instead of single-entry cache for
2191 2007-07-02 Simon Goldschmidt
2192 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2193 warnings when assigning to smaller types.
2195 2007-06-28 Simon Goldschmidt
2196 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2198 2007-06-28 Simon Goldschmidt
2199 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2200 a segment contained chained pbufs)
2202 2007-06-28 Frédéric Bernon
2203 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2204 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2205 possible to define this macro in your own lwipopts.h to always use C library's
2206 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2208 2007-06-28 Frédéric Bernon
2209 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2210 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2211 in api_lib/api_msg (use pointers and not type with table, etc...)
2213 2007-06-26 Simon Goldschmidt
2214 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2216 2007-06-25 Simon Goldschmidt
2217 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2218 for udp packets with no matching pcb.
2220 2007-06-25 Simon Goldschmidt
2221 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2222 could get udp input packets if the remote side matched.
2224 2007-06-13 Simon Goldschmidt
2225 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2226 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2228 2007-06-13 Simon Goldschmidt
2229 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2230 -> netconn_new_..() does not allocate a new connection for unsupported
2233 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2234 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2235 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2237 2007-06-13 Frédéric Bernon, Matthias Weisser
2238 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2239 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2240 some macro names collision with some OS macros.
2242 2007-06-11 Simon Goldschmidt
2243 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2244 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2245 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2248 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2249 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2250 where TCP flags wasn't initialized in tcp_keepalive.
2252 2007-06-03 Simon Goldschmidt
2253 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2254 registered, p->payload was modified without modifying p->len if sending
2255 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2257 2007-06-03 Simon Goldschmidt
2258 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2259 re-used the input pbuf even if that didn't have enough space to include the
2260 link headers. Now the space is tested and a new pbuf is allocated for the
2261 echo response packet if the echo request pbuf isn't big enough.
2263 2007-06-01 Simon Goldschmidt
2264 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2266 2007-05-23 Frédéric Bernon
2267 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2268 allocated by do_listen if success) and netconn_accept errors handling. In
2269 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2270 by ASSERT, except for netconn_delete.
2272 2007-05-23 Frédéric Bernon
2273 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2274 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2275 directly close the recvmbox).
2277 2007-05-22 Simon Goldschmidt
2278 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2279 bound but unconnected (and non-listening) tcp_pcbs.
2281 2007-05-22 Frédéric Bernon
2282 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2283 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2284 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2285 like "sys_timeout" in their application threads.
2287 2007-05-22 Frédéric Bernon
2288 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2289 which parameters are used by which do_xxx function, and to avoid "misusing"
2290 parameters (patch #5938).
2292 2007-05-22 Simon Goldschmidt
2293 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2294 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2295 is only 8 bits wide. This affects the api, as there, the protocol was
2298 2007-05-18 Simon Goldschmidt
2299 * memp.c: addition to patch #5913: smaller pointer was returned but
2300 memp_memory was the same size -> did not save memory.
2302 2007-05-16 Simon Goldschmidt
2303 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2306 2007-05-16 Simon Goldschmidt
2307 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2308 as the one of the netif used for sending to prevent sending from old
2309 addresses after a netif address gets changed (partly fixes bug #3168).
2311 2007-05-16 Frédéric Bernon
2312 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2313 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2314 tcpip_init) because we have to be sure that network interfaces are already
2315 added (mac filter is updated only in igmp_init for the moment).
2317 2007-05-16 Simon Goldschmidt
2318 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2319 into sys_arch_sem_wait calls to prevent timers from running while waiting
2320 for the heap. This fixes bug #19167.
2322 2007-05-13 Simon Goldschmidt
2323 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2324 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2327 2007-05-07 Simon Goldschmidt
2328 * mem.c: Another attempt to fix bug #17922.
2330 2007-05-04 Simon Goldschmidt
2331 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2332 implementation so that it can be reused (don't allocate the target
2333 pbuf inside pbuf_copy()).
2335 2007-05-04 Simon Goldschmidt
2336 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2337 to save a little RAM (next pointer of memp is not used while not in pool).
2340 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2343 2007-04-23 Simon Goldschmidt
2344 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2345 in NULL reference for incoming TCP packets". Loopif has to be configured
2346 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2347 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2348 putting packets on a list that is fed to the stack by calling loopif_poll()
2349 (single-thread / NO_SYS / polling environment where e.g.
2350 netif->input() = ip_input).
2352 2007-04-17 Jonathan Larmour
2353 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2354 the difference between two u16_t's.
2355 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2356 MEMP_NUM_NETCONN in sockets.c right now.
2358 2007-04-12 Jonathan Larmour
2359 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2361 2007-04-12 Kieran Mansley
2362 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2363 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2365 2007-04-11 Simon Goldschmidt
2366 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2367 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2368 pbuf.c: removed functions no needed any more (by etharp).
2370 2007-04-11 Kieran Mansley
2371 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2372 "Constant is long" warnings with 16bit compilers. Contributed by
2373 avatar@mmlab.cse.yzu.edu.tw
2375 2007-04-05 Frédéric Bernon, Jonathan Larmour
2376 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2377 the mailbox is active". Now, the post is only done during a connect, and do_send,
2378 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2380 2007-04-03 Frédéric Bernon
2381 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2382 packets. See patch #5834.
2384 2007-03-30 Frédéric Bernon
2385 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2386 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2388 2007-03-30 Frédéric Bernon
2389 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2390 others environment defines (these were too "generic").
2392 2007-03-28 Frédéric Bernon
2393 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2394 result and can cause a crash. lwip_send now check netbuf_ref result.
2396 2007-03-28 Simon Goldschmidt
2397 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2398 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2399 defined. This is the way it should have been already (looking at
2402 2007-03-28 Kieran Mansley
2403 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2404 IP and TCP headers *and* physical link headers
2406 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2407 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2408 to send some garbage. It is not a definitive solution, but the patch does solve
2409 the problem for most cases.
2411 2007-03-22 Frédéric Bernon
2412 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2414 2007-03-22 Frédéric Bernon
2415 * api_lib.c: somes resources couldn't be freed if there was errors during
2416 netconn_new_with_proto_and_callback.
2418 2007-03-22 Frédéric Bernon
2419 * ethernetif.c: update netif->input calls to check return value. In older ports,
2420 it's a good idea to upgrade them, even if before, there could be another problem
2421 (access to an uninitialized mailbox).
2423 2007-03-21 Simon Goldschmidt
2424 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2425 by casting to unsigned).
2427 2007-03-21 Frédéric Bernon
2428 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2429 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2430 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2431 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2432 faster and more reliable communication between api_lib and tcpip.
2434 2007-03-21 Frédéric Bernon
2435 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2437 2007-03-21 Frédéric Bernon
2438 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2440 2007-03-21 Kieran Mansley
2441 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2444 2007-03-21 Kieran Mansley
2445 * Fix all uses of pbuf_header to check the return value. In some
2446 cases just assert if it fails as I'm not sure how to fix them, but
2447 this is no worse than before when they would carry on regardless
2450 2007-03-21 Kieran Mansley
2451 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2452 comment out missing header include in icmp.c
2454 2007-03-20 Frédéric Bernon
2455 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2456 synchronized with memp.h.
2458 2007-03-20 Frédéric Bernon
2459 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2460 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2461 network interfaces. Also fix a compiler warning.
2463 2007-03-20 Kieran Mansley
2464 * udp.c: Only try and use pbuf_header() to make space for headers if
2465 not a ROM or REF pbuf.
2467 2007-03-19 Frédéric Bernon
2468 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2471 2007-03-19 Frédéric Bernon
2472 * Remove unimplemented "memp_realloc" function from memp.h.
2474 2007-03-11 Simon Goldschmidt
2475 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2478 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2479 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2480 (missing `const' qualifier in socket functions), to get more compatible to
2481 standard POSIX sockets.
2483 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2484 * sockets.c: Add asserts inside bind, connect and sendto to check input
2485 parameters. Remove excessive set_errno() calls after get_socket(), because
2486 errno is set inside of get_socket(). Move last sock_set_errno() inside
2489 2007-03-09 Simon Goldschmidt
2490 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2491 was allocated too small.
2493 2007-03-06 Simon Goldschmidt
2494 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2495 the stack from concurrent access.
2497 2007-03-06 Frédéric Bernon, Dmitry Potapov
2498 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2499 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2501 2007-03-06 Simon Goldschmidt
2502 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2503 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2505 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2506 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2507 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2508 Allow to do ARP processing for incoming packets inside tcpip_thread
2509 (protecting ARP layer against concurrent access). You can also disable
2510 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2511 Older ports have to use tcpip_ethinput.
2513 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2514 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2515 from pointer target type"
2517 2007-03-05 Frédéric Bernon
2518 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2519 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2521 2007-03-04 Frédéric Bernon
2522 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2525 2007-03-04 Frédéric Bernon
2526 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2528 The api_msg struct stay on the stack (not moved to netconn struct).
2530 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2531 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2532 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2533 Also fixed cast warning in pbuf_alloc()
2535 2007-03-04 Simon Goldschmidt
2536 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2537 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2539 2007-03-03 Frédéric Bernon
2540 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2541 It is static, and never used in udp.c except udp_init().
2543 2007-03-02 Simon Goldschmidt
2544 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2545 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2546 initialized before tcpip_thread is running (e.g. before OS is started)
2548 2007-03-02 Frédéric Bernon
2549 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2552 2007-02-28 Kieran Mansley
2553 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2554 outside the region of the pbuf by pbuf_header()
2556 2007-02-28 Kieran Mansley
2557 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2558 when supplied timeout is also non-zero
2562 2006-12-05 Leon Woestenberg
2563 * CHANGELOG: Mention STABLE-1.2.0 release.
2567 2006-12-01 Christiaan Simons
2568 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2569 Note this is a workaround. Currently I have no other options left.
2571 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2572 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2573 to include/lwip/opt.h.
2574 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2575 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2576 * opt.h: Add above new options.
2578 2006-08-18 Christiaan Simons
2579 * tcp_{in,out}.c: added SNMP counters.
2580 * ipv4/ip.c: added SNMP counters.
2581 * ipv4/ip_frag.c: added SNMP counters.
2583 2006-08-08 Christiaan Simons
2584 * etharp.{c,h}: added etharp_find_addr() to read
2585 (stable) ethernet/IP address pair from ARP table
2587 2006-07-14 Christiaan Simons
2588 * mib_structs.c: added
2589 * include/lwip/snmp_structs.h: added
2590 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2592 2006-07-06 Christiaan Simons
2593 * snmp/asn1_{enc,dec}.c added
2595 * snmp/msg_{in,out}.c added
2596 * include/lwip/snmp_asn1.h added
2597 * include/lwip/snmp_msg.h added
2598 * doc/snmp_agent.txt added
2600 2006-03-29 Christiaan Simons
2601 * inet.c, inet.h: Added platform byteswap support.
2602 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2603 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2607 2006-11-30 Christiaan Simons
2608 * dhcp.c: Fixed false triggers of request_timeout.
2610 2006-11-28 Christiaan Simons
2611 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2613 2006-10-11 Christiaan Simons
2614 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2615 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2616 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2617 identifier from 170 to 136 (bug #17574).
2619 2006-10-10 Christiaan Simons
2620 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2622 2006-08-17 Christiaan Simons
2623 * udp.c: Fixed bug #17200, added check for broadcast
2624 destinations for PCBs bound to a unicast address.
2626 2006-08-07 Christiaan Simons
2627 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2629 2006-06-27 Christiaan Simons
2630 * api_msg.c: Applied patch for cold case (bug #11135).
2631 In accept_function() ensure newconn->callback is always initialized.
2633 2006-06-15 Christiaan Simons
2634 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2635 facilitate printing of mem_size_t and u16_t statistics.
2637 2006-06-14 Christiaan Simons
2638 * api_msg.c: Applied patch #5146 to handle allocation failures
2639 in accept() by Kevin Lawson.
2641 2006-05-26 Christiaan Simons
2642 * api_lib.c: Removed conn->sem creation and destruction
2643 from netconn_write() and added sys_sem_new to netconn_new_*.
2647 2006-03-03 Christiaan Simons
2648 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2649 access and added pbuf_alloc() return value checks.
2651 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2652 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2653 now handled by the checksum routine properly.
2655 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2656 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2657 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2659 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2660 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2661 submitted by Mitrani Hiroshi.
2663 2005-12-15 Christiaan Simons
2664 * inet.c: Disabled the added summing routine to preserve code space.
2666 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2667 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2668 Added Curt McDowell's optimized checksumming routine for future
2669 inclusion. Need to create test case for unaliged, aligned, odd,
2670 even length combination of cases on various endianess machines.
2672 2005-12-09 Christiaan Simons
2673 * inet.c: Rewrote standard checksum routine in proper portable C.
2675 2005-11-25 Christiaan Simons
2676 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2677 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2678 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2680 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2681 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2682 routine by Peter Jolasson.
2683 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2685 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2686 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2687 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2689 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2690 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2692 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2693 * udp.c: UDP pcb->recv() was called even when it was NULL.
2697 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2698 * etharp.*: Disabled multiple packets on the ARP queue.
2699 This clashes with TCP queueing.
2701 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2702 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2703 Halved the ARP period, doubled the period counts.
2704 ETHARP_MAX_PENDING now should be at least 2. This prevents
2705 the counter from reaching 0 right away (which would allow
2706 too little time for ARP responses to be received).
2708 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2709 * dhcp.c: Decline messages were not multicast but unicast.
2710 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2711 Do not try hard to insert arbitrary packet's source address,
2712 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2713 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2714 querying an address will see it appear in the cache (DHCP could
2715 suffer from this when a server invalidly gave an in-use address.)
2716 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2717 comparing network addresses (identifiers), not the network masks
2719 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2720 IP address actually belongs to the network of the given interface.
2722 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2723 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2727 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2728 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2729 even if one is already pending, if the rcv_wnd is above a threshold
2730 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2731 delayed ACK in order to open the window if the stack is only receiving data.
2733 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2734 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2736 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2737 * etharp.c: Make sure the first pbuf queued on an ARP entry
2738 is properly ref counted.
2740 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2741 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2742 warnings about comparison.
2743 * pbuf.c: Stopped compiler complaining of empty if statement
2744 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2745 * tcp.c: Stopped compiler complaining of empty if statement
2746 when LWIP_DEBUGF() empty.
2747 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2748 * inet.c: Added a couple of casts to quiet the compiler.
2749 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2751 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2752 * inet.c: Made data types consistent in inet_ntoa().
2753 Added casts for return values of checksum routines, to pacify compiler.
2754 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2755 Small corrections to some debugging statements, to pacify compiler.
2757 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2758 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2759 * ethernetif.c Updated low_level_output() to match prototype for
2760 netif->linkoutput and changed low_level_input() similarly for consistency.
2761 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2762 of raw_recv() in raw.h and so avoid compiler error.
2763 * sockets.c: Added trivial (int) cast to keep compiler happier.
2764 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2770 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2771 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2772 your cc.h file defines this either 1 or 0. If non-defined,
2774 * .c: Added <string.h> and <errno.h> includes where used.
2775 * etharp.c: Made some array indices unsigned.
2777 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2778 * netif.*: Added netif_set_up()/down().
2779 * dhcp.c: Changes to restart program flow.
2781 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2782 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2783 single-pass lookup for different candidates. Should exploit locality.
2785 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2786 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2787 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2788 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2789 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2793 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2794 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2795 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2796 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2797 is to prefix the 14-bit Ethernet headers with two padding bytes.
2799 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2800 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2801 * etharp.c: Fixed the case where the packet that initiates the ARP request
2802 is not queued, and gets lost. Fixed the case where the packets destination
2803 address is already known; we now always queue the packet and perform an ARP
2810 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2811 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2812 * Fixed two possible NULL references in rare cases.
2818 * Fixed DHCP which did not include the IP address in DECLINE messages.
2822 * etharp.c has been hauled over a bit.
2828 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2829 * Packets sent from ARP queue had invalid source hardware address.
2833 * Pass-by ARP requests do now update the cache.
2837 * No longer dependent on ctype.h.
2838 * New socket options.
2839 * Raw IP pcb support.
2845 * Some debug formatters and casts fixed.
2846 * Numereous fixes in PPP.
2850 * DEBUGF now is LWIP_DEBUGF
2851 * pbuf_dechain() has been re-enabled.
2852 * Mentioned the changed use of CVS branches in README.
2858 * Fixed pool pbuf memory leak in pbuf_alloc().
2859 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2860 Reported by Savin Zlobec.
2862 * PBUF_POOL chains had their tot_len field not set for non-first
2863 pbufs. Fixed in pbuf_alloc().
2867 * Added PPP stack contributed by Marc Boucher
2871 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2873 * ARP queueuing now queues the latest packet instead of the first.
2874 This is the RFC recommended behaviour, but can be overridden in
2881 * TCP has been fixed to deal with the new use of the pbuf->ref
2884 * DHCP dhcp_inform() crash bug fixed.
2888 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2889 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2890 Implemented by David Haas.
2896 * The packet buffer implementation has been enhanced to support
2897 zero-copy and copy-on-demand for packet buffers which have their
2898 payloads in application-managed memory.
2899 Implemented by David Haas.
2901 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2902 if an outgoing packet can be directly sent on the link, or perform
2903 a copy-on-demand when necessary.
2905 The application can safely assume the packet is sent, and the RAM
2906 is available to the application directly after calling udp_send()
2907 or similar function.
2911 * ARP_QUEUEING should now correctly work for all cases, including
2913 Implemented by Leon Woestenberg.
2917 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2918 to a '0.0.0.0' IP address.
2920 * The packet buffer implementation is changed. The pbuf->ref counter
2921 meaning has changed, and several pbuf functions have been
2922 adapted accordingly.
2924 * netif drivers have to be changed to set the hardware address length field
2925 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2926 See the contrib/ports/c16x cs8900 driver as a driver example.
2928 * netif's have a dhcp field that must be initialized to NULL by the driver.
2929 See the contrib/ports/c16x cs8900 driver as a driver example.
2931 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2932 logged in CVS but have not been explained here.
2934 (0.5.3) Changes since version 0.5.2
2938 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2939 threads because it wasn't protected by semaphores.
2943 * struct ip_addr now packed.
2945 * The name of the time variable in arp.c has been changed to ctime
2946 to avoid conflicts with the time() function.
2948 (0.5.2) Changes since version 0.5.1
2952 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2956 * A bug in tcp_parseopt() could cause the stack to hang because of a
2957 malformed TCP option.
2959 * The address of new connections in the accept() function in the BSD
2960 socket library was not handled correctly.
2962 * pbuf_dechain() did not update the ->tot_len field of the tail.
2964 * Aborted TCP connections were not handled correctly in all
2969 * All protocol header structs are now packed.
2971 * The ->len field in the tcp_seg structure now counts the actual
2972 amount of data, and does not add one for SYN and FIN segments.
2974 (0.5.1) Changes since version 0.5.0
2978 * Possible to run as a user process under Linux.
2980 * Preliminary support for cross platform packed structs.
2982 * ARP timer now implemented.
2986 * TCP output queue length was badly initialized when opening
2989 * TCP delayed ACKs were not sent correctly.
2991 * Explicit initialization of BSS segment variables.
2993 * read() in BSD socket library could drop data.
2995 * Problems with memory alignment.
2997 * Situations when all TCP buffers were used could lead to
3000 * TCP MSS option wasn't parsed correctly.
3002 * Problems with UDP checksum calculation.
3004 * IP multicast address tests had endianess problems.
3006 * ARP requests had wrong destination hardware address.
3010 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3012 * A ->linkoutput() member was added to struct netif.
3014 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3016 * ntoh* macros are now null definitions for big endian CPUs.
3018 (0.5.0) Changes since version 0.4.2
3022 * Redesigned operating system emulation layer to make porting easier.
3024 * Better control over TCP output buffers.
3026 * Documenation added.
3030 * Locking issues in buffer management.
3032 * Bugfixes in the sequential API.
3034 * IP forwarding could cause memory leakage. This has been fixed.
3038 * Directory structure somewhat changed; the core/ tree has been
3041 (0.4.2) Changes since version 0.4.1
3045 * Experimental ARP implementation added.
3047 * Skeleton Ethernet driver added.
3049 * Experimental BSD socket API library added.
3053 * In very intense situations, memory leakage could occur. This has
3058 * Variables named "data" and "code" have been renamed in order to
3059 avoid name conflicts in certain compilers.
3061 * Variable++ have in appliciable cases been translated to ++variable
3062 since some compilers generate better code in the latter case.
3064 (0.4.1) Changes since version 0.4
3068 * TCP: Connection attempts time out earlier than data
3069 transmissions. Nagle algorithm implemented. Push flag set on the
3070 last segment in a burst.
3072 * UDP: experimental support for UDP-Lite extensions.
3076 * TCP: out of order segments were in some cases handled incorrectly,
3077 and this has now been fixed. Delayed acknowledgements was broken
3078 in 0.4, has now been fixed. Binding to an address that is in use
3079 now results in an error. Reset connections sometimes hung an
3080 application; this has been fixed.
3082 * Checksum calculation sometimes failed for chained pbufs with odd
3083 lengths. This has been fixed.
3085 * API: a lot of bug fixes in the API. The UDP API has been improved
3086 and tested. Error reporting and handling has been
3087 improved. Logical flaws and race conditions for incoming TCP
3088 connections has been found and removed.
3090 * Memory manager: alignment issues. Reallocating memory sometimes
3091 failed, this has been fixed.
3093 * Generic library: bcopy was flawed and has been fixed.
3097 * API: all datatypes has been changed from generic ones such as
3098 ints, to specified ones such as u16_t. Functions that return
3099 errors now have the correct type (err_t).
3101 * General: A lot of code cleaned up and debugging code removed. Many
3102 portability issues have been fixed.
3104 * The license was changed; the advertising clause was removed.
3108 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3109 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3112 (0.4) Changes since version 0.3.1
3114 * Memory management has been radically changed; instead of
3115 allocating memory from a shared heap, memory for objects that are
3116 rapidly allocated and deallocated is now kept in pools. Allocation
3117 and deallocation from those memory pools is very fast. The shared
3118 heap is still present but is used less frequently.
3120 * The memory, memory pool, and packet buffer subsystems now support
3121 4-, 2-, or 1-byte alignment.
3123 * "Out of memory" situations are handled in a more robust way.
3125 * Stack usage has been reduced.
3127 * Easier configuration of lwIP parameters such as memory usage,
3128 TTLs, statistics gathering, etc. All configuration parameters are
3129 now kept in a single header file "lwipopts.h".
3131 * The directory structure has been changed slightly so that all
3132 architecture specific files are kept under the src/arch
3135 * Error propagation has been improved, both in the protocol modules
3138 * The code for the RTXC architecture has been implemented, tested
3141 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3142 the Internet checksum modules.
3144 * Bugs related to porting between a 32-bit and a 16-bit architecture
3145 have been found and corrected.
3147 * The license has been changed slightly to conform more with the
3148 original BSD license, including the advertisement clause.
3150 (0.3.1) Changes since version 0.3
3152 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3153 RAM never returned the RAM when the pbuf was deallocated.
3155 * TCP congestion control, window updates and retransmissions did not
3156 work correctly. This has now been fixed.
3158 * Bugfixes in the API.
3160 (0.3) Changes since version 0.2
3162 * New and improved directory structure. All include files are now
3163 kept in a dedicated include/ directory.
3165 * The API now has proper error handling. A new function,
3166 netconn_err(), now returns an error code for the connection in
3169 * Improvements in the memory management subsystem. The system now
3170 keeps a pointer to the lowest free memory block. A new function,
3171 mem_malloc2() tries to allocate memory once, and if it fails tries
3172 to free some memory and retry the allocation.
3174 * Much testing has been done with limited memory
3175 configurations. lwIP now does a better job when overloaded.
3177 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3179 * Many bugfixes in the TCP code:
3181 - Fixed a bug in tcp_close().
3183 - The TCP receive window was incorrectly closed when out of
3184 sequence segments was received. This has been fixed.
3186 - Connections are now timed-out of the FIN-WAIT-2 state.
3188 - The initial congestion window could in some cases be too
3189 large. This has been fixed.
3191 - The retransmission queue could in some cases be screwed up. This
3194 - TCP RST flag now handled correctly.
3196 - Out of sequence data was in some cases never delivered to the
3197 application. This has been fixed.
3199 - Retransmitted segments now contain the correct acknowledgment
3200 number and advertised window.
3202 - TCP retransmission timeout backoffs are not correctly computed
3203 (ala BSD). After a number of retransmissions, TCP now gives up
3206 * TCP connections now are kept on three lists, one for active
3207 connections, one for listening connections, and one for
3208 connections that are in TIME-WAIT. This greatly speeds up the fast
3209 timeout processing for sending delayed ACKs.
3211 * TCP now provides proper feedback to the application when a
3212 connection has been successfully set up.
3214 * More comments have been added to the code. The code has also been
3215 somewhat cleaned up.
3217 (0.2) Initial public release.