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 2011-11-23: Simon Goldschmidt
73 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
76 2011-11-22: Simon Goldschmidt
77 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
80 2011-10-28: Simon Goldschmidt
81 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
83 2011-10-23: Simon Goldschmidt
84 * mem.c: fixed bug #34429: possible memory corruption with
85 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
87 2011-10-18: Simon Goldschmidt
88 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
91 2011-10-18: Simon Goldschmidt
92 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
93 windows (bug #34176 select after non-blocking send times out)
95 2011-10-18: Simon Goldschmidt
96 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
97 consider netif->mtu, causes slow network
99 2011-10-18: Simon Goldschmidt
100 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
102 2011-10-18: Simon Goldschmidt
103 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
105 2011-10-17: Simon Goldschmidt
106 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
108 2011-10-13: Simon Goldschmidt
109 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
110 zero window is received) by starting the persist timer when a zero window is
111 received, not when we have more data queued for sending than fits into the
114 2011-10-13: Simon Goldschmidt
115 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
117 2011-10-13: Simon Goldschmidt
118 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
119 used and not all protocols are enabled
121 2011-10-12: Simon Goldschmidt
122 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
124 2011-10-09: Simon Goldschmidt
125 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
126 byte value when pcb->unacked != NULL
128 2011-10-09: Simon Goldschmidt
129 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
131 2011-09-27: Simon Goldschmidt
132 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
134 2011-09-27: Simon Goldschmidt
135 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
137 2011-09-27: Simon Goldschmidt
138 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
140 2011-09-24: Simon Goldschmidt
141 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
143 2011-09-23: Simon Goldschmidt
144 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
145 the last packet including FIN can lose data
147 2011-09-22: Simon Goldschmidt
148 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
151 2011-09-21: Simon Goldschmidt
152 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
155 2011-09-20: Simon Goldschmidt
156 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
158 2011-09-11: Simon Goldschmidt
159 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
162 2011-09-09: Simon Goldschmidt
163 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
166 2011-09-03: Simon Goldschmidt
167 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
168 is aggregated and sent to application
170 2011-09-01: Simon Goldschmidt
171 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
174 2011-09-01: Simon Goldschmidt
175 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
177 2011-08-24: Simon Goldschmidt
178 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
180 2011-08-24: Simon Goldschmidt
181 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
182 accept() on UDP connections
184 2011-08-24: Simon Goldschmidt
185 * sockets.h: fixed bug #34057 socklen_t should be a typedef
187 2011-08-24: Simon Goldschmidt
188 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
190 2011-08-24: Simon Goldschmidt
191 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
193 2011-08-24: Simon Goldschmidt
194 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
196 2011-08-22: Simon Goldschmidt
197 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
198 merely prevents nagle from not transmitting fast after closing.)
200 2011-07-22: Simon Goldschmidt
201 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
202 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
203 lwip_send() sends as much as possible for non-blocking sockets
205 2011-07-22: Simon Goldschmidt
206 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
207 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
208 at regular intervals from main level.
210 2011-07-21: Simon Goldschmidt
211 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
212 sending an ARP request when an ARP entry is used in the last minute before
215 2011-07-04: Simon Goldschmidt
216 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
218 2011-06-26: Simon Goldschmidt
219 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
220 updating its documentation only.
222 2011-06-26: Simon Goldschmidt
223 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
226 2011-06-26: Simon Goldschmidt
227 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
235 2011-03-27: Simon Goldschmidt
236 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
237 calculate it in tcp_zero_window_probe (the only place where it was used).
239 2010-11-21: Simon Goldschmidt
240 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
243 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
244 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
245 IP_MULTICAST_LOOP at socket- and raw-API level.
247 2010-06-16: Simon Goldschmidt
248 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
249 link-layer-addressed UDP traffic to be received while a netif is down (just
250 like DHCP during configuration)
252 2010-05-22: Simon Goldschmidt
253 * many many files: bug #27352: removed packing from ip_addr_t, the packed
254 version is now only used in protocol headers. Added global storage for
255 current src/dest IP address while in input functions.
257 2010-05-16: Simon Goldschmidt
258 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
259 calculation (and use them throughout the stack where applicable)
261 2010-05-16: Simon Goldschmidt
262 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
263 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
265 2010-05-16: Simon Goldschmidt
266 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
267 MEMP pool instead of the heap
269 2010-05-13: Simon Goldschmidt
270 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
271 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
272 packets to more than one pcb.
274 2010-05-02: Simon Goldschmidt
275 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
276 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
278 2010-04-30: Simon Goldschmidt
279 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
280 take a precalculated checksum, added pbuf_fill_chksum() to copy data
281 into a pbuf and at the same time calculating the checksum for that data
283 2010-04-29: Simon Goldschmidt
284 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
285 2-byte-aligned IP addresses and MAC addresses
287 2010-04-28: Patch by Bill Auerbach
288 * ip.c: Inline generating IP checksum to save a function call
290 2010-04-14: Simon Goldschmidt
291 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
292 tcpip_thread processes messages or timeouts to implement a watchdog.
294 2010-03-28: Simon Goldschmidt
295 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
296 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
298 2010-03-27: Simon Goldschmidt
299 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
300 etharp_query to prevent unnecessary function calls (inspired by
303 2010-03-20: Simon Goldschmidt
304 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
305 since the linker cannot do this automatically to save space.
307 2010-03-20: Simon Goldschmidt
308 * opt.h, etharp.c/.h: Added support for static ARP table entries
310 2010-03-14: Simon Goldschmidt
311 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
312 when creating TCP segments, not when (re-)transmitting them.
314 2010-03-07: Simon Goldschmidt
315 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
316 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
317 This should speed up receiving data on sockets as the select code in
318 event_callback is only executed when select is waiting.
320 2010-03-06: Simon Goldschmidt
321 * tcp_out.c: task #7013 (Create option to have all packets delivered to
322 netif->output in one piece): Always copy to try to create single pbufs
325 2010-03-06: Simon Goldschmidt
326 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
327 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
328 for tcp netconns to receive pbufs, not netbufs; use that function
331 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
332 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
333 Work on tcp_enqueue: Don't waste memory when chaining segments,
334 added option TCP_OVERSIZE to prevent creating many small pbufs when
335 calling tcp_write with many small blocks of data. Instead, pbufs are
336 allocated larger than needed and the space is used for later calls to
339 2010-02-21: Simon Goldschmidt
340 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
343 2010-02-21: Simon Goldschmidt
344 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
345 implementation of tcp to make API usage cleare to application programmers
347 2010-02-14: Simon Goldschmidt/Stephane Lesage
348 * ip_addr.h: Improved some defines working on ip addresses, added faster
349 macro to copy addresses that cannot be NULL
351 2010-02-13: Simon Goldschmidt
352 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
353 blocking send operation)
355 2010-02-12: Simon Goldschmidt
356 * sockets.c/.h: Added a minimal version of posix fctl() to have a
357 standardised way to set O_NONBLOCK for nonblocking sockets.
359 2010-02-12: Simon Goldschmidt
360 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
361 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
362 and dhcp work with user-allocated structs instead of callin mem_malloc
364 2010-02-12: Simon Goldschmidt/Jeff Barber
365 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
366 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
368 2010-02-12: Simon Goldschmidt
369 * sys layer: task #10139 (Prefer statically allocated memory): converted
370 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
371 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
372 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
373 to let sys.h use binary semaphores instead of mutexes - as before)
375 2010-02-09: Simon Goldschmidt (Simon Kallweit)
376 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
377 (Restart system timeout handling)
379 2010-02-09: Simon Goldschmidt
380 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
381 netif.c) - loopif does not have to be created by the port any more,
382 just define LWIP_HAVE_LOOPIF to 1.
384 2010-02-08: Simon Goldschmidt
385 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
386 inet_ntoa_r/ipaddr_ntoa_r
388 2010-02-08: Simon Goldschmidt
389 * netif.h: Added netif_s/get_igmp_mac_filter() macros
391 2010-02-05: Simon Goldschmidt
392 * netif.h: Added function-like macros to get/set the hostname on a netif
394 2010-02-04: Simon Goldschmidt
395 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
396 make changing the actual implementation behind the typedef easier.
398 2010-02-01: Simon Goldschmidt
399 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
400 for allocating memory when getaddrinfo() is called.
402 2010-01-31: Simon Goldschmidt
403 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
404 them once instead of parsing for every option. This also removes
405 the need for mem_malloc from dhcp_recv and makes it possible to
406 correctly retrieve the BOOTP file.
408 2010-01-30: simon Goldschmidt
409 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
412 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
413 * api.h, api_msg.c, sockets.c: Added except set support in select
416 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
417 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
418 Add non-blocking support for connect (partly from patch #6860),
419 plus many cleanups in socket & netconn API.
421 2010-01-27: Simon Goldschmidt
422 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
423 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
425 2010-01-26: Simon Goldschmidt
426 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
428 2010-01-14: Simon Goldschmidt
429 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
430 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
432 2010-01-13: Simon Goldschmidt
433 * mem.c: The heap now may be moved to user-defined memory by defining
434 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
435 (patch #6966 and bug #26133)
437 2010-01-10: Simon Goldschmidt (Bill Auerbach)
438 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
441 2010-01-10: Simon Goldschmidt
442 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
443 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
445 2009-12-31: Simon Goldschmidt
446 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
447 added timers.c/.h: Separated timer implementation from semaphore/mbox
448 implementation, moved timer implementation to timers.c/.h, timers are
449 now only called from tcpip_thread or by explicitly checking them.
452 2009-12-27: Simon Goldschmidt
453 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
454 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
459 2011-04-20: Simon Goldschmidt
460 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
462 2011-04-13: Simon Goldschmidt
463 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
464 using ports in the IANA private/dynamic range (49152 through 65535).
466 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
467 * etharp.h/.c: Fixed broken VLAN support.
469 2011-03-27: Simon Goldschmidt
470 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
471 pcbs) by checking if the pcb was bound (local_port != 0).
473 2011-03-27: Simon Goldschmidt
474 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
476 2011-03-27: Simon Goldschmidt
477 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
478 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
480 2011-03-27: Simon Goldschmidt
481 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
482 is present never times out) by starting retransmission timer before checking
485 2011-03-22: Simon Goldschmidt
486 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
487 calling sio_read_abort() if the file descriptor is valid.
489 2011-03-14: Simon Goldschmidt
490 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
491 more than once can render a socket useless) since it mainly involves changing
492 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
494 2011-03-13: Simon Goldschmidt
495 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
496 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
497 use EALRADY instead of -1
499 2011-03-13: Simon Goldschmidt
500 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
501 connection has been aborted by err_tcp (since this is not a normal closing
504 2011-03-13: Simon Goldschmidt
505 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
506 with pcb->state != CLOSED
508 2011-02-17: Simon Goldschmidt
509 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
512 2011-02-17: Simon Goldschmidt
513 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
515 2011-01-24: Simon Goldschmidt
516 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
518 2010-12-02: Simon Goldschmidt
519 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
521 2010-11-23: Simon Goldschmidt
522 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
523 LWIP_SO_RCVBUF and ioctl/FIONREAD.
525 2010-11-23: Simon Goldschmidt
526 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
527 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
529 2010-11-23: Simon Goldschmidt
530 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
531 refusing 'refused_data' again.
533 2010-11-22: Simon Goldschmidt
534 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
535 after a successful nonblocking connection.
537 2010-11-22: Simon Goldschmidt
538 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
539 must be sent link-local
541 2010-11-22: Simon Goldschmidt
542 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
545 2010-11-20: Simon Goldschmidt
546 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
548 2010-11-20: Simon Goldschmidt
549 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
550 resemble other stacks.
552 2010-11-20: Simon Goldschmidt
553 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
554 no-copy TCP writes will never succeed.
556 2010-11-20: Simon Goldschmidt
557 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
558 not match documentation: return ERR_ARG instead of ERR_VAL if not
559 initialized or wrong argument.
561 2010-10-20: Simon Goldschmidt
562 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
564 2010-10-05: Simon Goldschmidt
565 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
566 replugging the network cable after an AutoIP address was assigned.
568 2010-08-10: Simon Goldschmidt
569 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
571 2010-08-03: Simon Goldschmidt
572 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
574 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
575 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
576 endian architectures)
578 2010-07-28: Simon Goldschmidt
579 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
582 2010-07-27: Simon Goldschmidt
583 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
584 harm but never did anything
586 2010-07-21: Simon Goldschmidt
587 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
590 2010-07-16: Kieran Mansley
591 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
593 2010-07-10: Simon Goldschmidt
594 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
596 2010-06-30: Simon Goldschmidt
597 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
600 2010-06-28: Kieran Mansley
601 * timers.c remove unportable printing of C function pointers
603 2010-06-24: Simon Goldschmidt
604 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
605 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
607 2010-06-24: Simon Goldschmidt
608 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
609 implemented shutdown at socket level.
611 2010-06-21: Simon Goldschmidt
612 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
613 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
614 custom pbufs that reference other (original) pbufs. Additionally set
615 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
617 2010-06-15: Simon Goldschmidt
618 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
620 2010-06-14: Simon Goldschmidt
621 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
623 2010-06-12: Simon Goldschmidt
624 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
627 2010-05-17: Simon Goldschmidt
628 * netdb.c: Correctly NULL-terminate h_addr_list
630 2010-05-16: Simon Goldschmidt
631 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
632 "symbol already defined" i.e. when linking to winsock
634 2010-05-05: Simon Goldschmidt
635 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
638 2010-04-21: Simon Goldschmidt
639 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
642 2010-03-28: Luca Ceresoli
643 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
645 2010-03-27: Luca Ceresoli
646 * mib2.c: patch #7130: remove meaningless const qualifiers
648 2010-03-26: Simon Goldschmidt
649 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
651 2010-03-26: Simon Goldschmidt
652 * various files: Fixed compiling with different options disabled (TCP/UDP),
653 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
655 2010-03-25: Simon Goldschmidt
656 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
658 2010-03-25: Simon Goldschmidt
659 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
660 overrunning our rcv_wnd in ooseq case.
662 2010-03-22: Simon Goldschmidt
663 * tcp.c: tcp_listen() did not copy the pcb's prio.
665 2010-03-19: Simon Goldschmidt
666 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
668 2010-03-14: Simon Goldschmidt
669 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
670 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
671 and basing PBUF_LINK_HLEN on it.
673 2010-03-08: Simon Goldschmidt
674 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
675 when assiging routable address): when checking incoming packets and
676 aborting existing connection on address change, filter out link-local
679 2010-03-06: Simon Goldschmidt
680 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
682 2010-03-06: Simon Goldschmidt
683 * ipv4/ip.c: Don't try to forward link-local addresses
685 2010-03-06: Simon Goldschmidt
686 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
689 2010-03-05: Simon Goldschmidt
690 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
693 2010-03-05: Simon Goldschmidt
694 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
695 into multiple calls to tcp_write.
697 2010-02-21: Simon Goldschmidt
698 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
699 the implementation of DNS_USES_STATIC_BUF==1)
701 2010-02-20: Simon Goldschmidt
702 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
703 close() vs. shutdown(). Now the application does not get any more
704 recv callbacks after calling tcp_close(). Added tcp_shutdown().
706 2010-02-19: Simon Goldschmidt
707 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
708 confusion with realloc()
710 2010-02-15: Simon Goldschmidt/Stephane Lesage
711 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
714 2010-02-14: Simon Goldschmidt
715 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
716 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
717 admin-status of a netif are up
719 2010-02-14: Simon Goldschmidt
720 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
721 reception and is not really necessary
723 2010-02-14: Simon Goldschmidt
724 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
725 request was directed as us (RFC 826, Packet Reception), otherwise
726 only update existing entries; internalized some functions
728 2010-02-14: Simon Goldschmidt
729 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
730 disabled on netif used for PPPoE) by adding a new netif flag
731 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
732 device but prevents usage of ARP (so that ethernet_input can be used
735 2010-02-12: Simon Goldschmidt
736 * netif.c: netif_set_link_up/down: only do something if the link state
739 2010-02-12: Simon Goldschmidt/Stephane Lesage
740 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
743 2010-02-12: Simon Goldschmidt
744 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
746 2010-02-09: Simon Goldschmidt
747 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
748 (recv() makes receive window update for data that wasn't received by
751 2010-02-09: Simon Goldschmidt/Stephane Lesage
752 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
753 or any netconn_recv() error)
755 2010-02-09: Simon Goldschmidt
756 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
758 2010-02-09: Simon Goldschmidt
759 * netif.c: For loopback packets, adjust the stats- and snmp-counters
760 for the loopback netif.
762 2010-02-08: Simon Goldschmidt
763 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
764 since they are not used anywhere else.
766 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
767 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
768 (patch from bug #28798)
770 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
771 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
772 another bug when LWIP_RAND() returns zero.
774 2010-02-04: Simon Goldschmidt
775 * nearly every file: Use macros defined in ip_addr.h (some of them new)
776 to work with IP addresses (preparation for bug #27352 - Change ip_addr
777 from struct to typedef (u32_t) - and better code).
779 2010-01-31: Simon Goldschmidt
780 * netif.c: Don't call the link-callback from netif_set_up/down() since
781 this invalidly retriggers DHCP.
783 2010-01-29: Simon Goldschmidt
784 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
785 portability file inet.h and its contents from the stack: moved htonX-
786 functions to def.h (and the new def.c - they are not ipv4 dependent),
787 let inet.h depend on ip_addr.h and not the other way round.
788 This fixes bug #28732.
790 2010-01-28: Kieran Mansley
791 * tcp.c: Ensure ssthresh >= 2*MSS
793 2010-01-27: Simon Goldschmidt
794 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
795 callback can lead to accessing unallocated memory. As a consequence,
796 ERR_ABRT means the application has called tcp_abort()!
798 2010-01-25: Simon Goldschmidt
799 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
800 not implemented in SNMP): write-only or not-accessible are still
801 returned by getnext (though not by get)
803 2010-01-24: Simon Goldschmidt
804 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
805 not use reserved C/C++ keywords
807 2010-01-23: Simon Goldschmidt
808 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
811 2010-01-21: Simon Goldschmidt
812 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
813 if tcp_enqueue fails) both in raw- and netconn-API
815 2010-01-19: Simon Goldschmidt
816 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
818 2010-01-18: Iordan Neshev/Simon Goldschmidt
819 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
820 bugfix backports from 2.4.x.
822 2010-01-18: Simon Goldschmidt
823 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
825 2010-01-17: Simon Goldschmidt
826 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
827 task #10102: "netconn: clean up conn->err threading issues" by adding
828 error return value to struct api_msg_msg
830 2010-01-17: Simon Goldschmidt
831 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
832 to return err_t (bugs #27709 and #28087)
834 2010-01-14: Simon Goldschmidt
835 * ...: Use typedef for function prototypes throughout the stack.
837 2010-01-13: Simon Goldschmidt
838 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
839 window = 0) by correctly draining recvmbox/acceptmbox
841 2010-01-11: Simon Goldschmidt
842 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
843 erroneous callbacks) by copying the code from recent pppd
845 2010-01-10: Simon Goldschmidt
846 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
848 2010-01-10: Simon Goldschmidt
849 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
851 2010-01-08: Simon Goldschmidt
852 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
854 2010-01-08: Simon Goldschmidt
855 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
856 passed to dns_local_addhost() might be volatile
858 2010-01-07: Simon Goldschmidt
859 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
861 2010-01-06: Simon Goldschmidt
862 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
864 2009-12-31: Simon Goldschmidt
865 * many ppp files: Reorganised PPP source code from ucip structure to pppd
866 structure to easily compare our code against the pppd code (around v2.3.1)
868 2009-12-27: Simon Goldschmidt
869 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
877 2009-10-27 Simon Goldschmidt/Stephan Lesage
878 * netifapi.c/.h: Added netifapi_netif_set_addr()
880 2009-10-07 Simon Goldschmidt/Fabian Koch
881 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
882 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
884 2009-08-26 Simon Goldschmidt/Simon Kallweit
885 * slipif.c/.h: bug #26397: SLIP polling support
887 2009-08-25 Simon Goldschmidt
888 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
889 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
891 2009-08-25 Simon Goldschmidt
892 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
894 2009-08-24 Jakob Stoklund Olesen
895 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
896 to netif_set_link_up().
898 2009-08-23 Simon Goldschmidt
899 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
900 to a human-readable string.
904 2009-12-24: Kieran Mansley
905 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
908 2009-12-06: Simon Goldschmidt
909 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
910 be statically allocated (like in ucip)
912 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
913 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
915 2009-12-03: Simon Goldschmidt
916 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
917 could have non-zero length
919 2009-12-02: Simon Goldschmidt
920 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
921 tcp_input_pcb until after calling the pcb's callbacks
923 2009-11-29: Simon Goldschmidt
924 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
925 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
927 2009-11-29: Simon Goldschmidt
928 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
929 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
931 2009-11-26: Simon Goldschmidt
932 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
935 2009-11-26: Simon Goldschmidt
936 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
937 algorithm at PCB level
939 2009-11-22: Simon Goldschmidt
940 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
942 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
943 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
944 reusing time-wait pcb
946 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
947 * sockets.c: Fixed bug #28062: Data received directly after accepting
948 does not wake up select
950 2009-11-11: Simon Goldschmidt
951 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
953 2009-10-30: Simon Goldschmidt
954 * opt.h: Increased default value for TCP_MSS to 536, updated default
955 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
957 2009-10-28: Kieran Mansley
958 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
959 to follow algorithm from TCP/IP Illustrated
961 2009-10-27: Kieran Mansley
962 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
964 2009-10-25: Simon Goldschmidt
965 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
966 pcb->recv is NULL to keep rcv_wnd correct)
968 2009-10-25: Simon Goldschmidt
969 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
971 2009-10-23: Simon Goldschmidt (David Empson)
972 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
974 2009-10-21: Simon Goldschmidt
975 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
976 trailing 1 byte len (SYN/FIN)
978 2009-10-21: Simon Goldschmidt
979 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
981 2009-10-19: Simon Goldschmidt
982 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
983 conditional code to assert where applicable), check pbuf length before
984 testing for valid reply
986 2009-10-19: Simon Goldschmidt
987 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
988 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
990 2009-10-16: Simon Goldschmidt
991 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
992 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
995 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
996 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
998 2009-10-15: Simon Goldschmidt
999 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1002 2009-10-15: Simon Goldschmidt
1003 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1004 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1005 of network byte order
1007 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1008 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1009 which are not consecutive when retransmitting unacked segments
1011 2009-10-09 Simon Goldschmidt
1012 * opt.h: Fixed default values of some stats to only be enabled if used
1013 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1015 2009-08-30 Simon Goldschmidt
1016 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1017 function" by checking for loopback before calling ip_frag
1019 2009-08-25 Simon Goldschmidt
1020 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1022 2009-08-23 Simon Goldschmidt
1023 * ppp.c: bug #27078: Possible memory leak in pppInit()
1025 2009-08-23 Simon Goldschmidt
1026 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1029 2009-08-23 Simon Goldschmidt
1030 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1031 Fixed wrong parenthesis, added check in init.c
1033 2009-08-23 Simon Goldschmidt
1034 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1036 2009-08-23 Simon Goldschmidt
1037 * many ppp files: bug #27267: Added include to string.h where needed
1039 2009-08-23 Simon Goldschmidt
1040 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1047 2009-05-10 Simon Goldschmidt
1048 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1049 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1050 one pbuf to help MACs that don't support scatter-gather DMA.
1052 2009-05-09 Simon Goldschmidt
1053 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1054 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1056 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1057 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1058 extended info about the currently received packet.
1060 2009-04-27 Simon Goldschmidt
1061 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1063 2009-04-25 Simon Goldschmidt
1064 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1065 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1067 2009-04-21 Simon Goldschmidt
1068 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1069 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1070 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1071 as an external function for lookup.
1073 2009-04-15 Simon Goldschmidt
1074 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1076 2009-03-31 Kieran Mansley
1077 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1078 TCP timestamp options, off by default. Rework tcp_enqueue() to
1079 take option flags rather than specified option data
1081 2009-02-18 Simon Goldschmidt
1082 * cc.h: Added printf formatter for size_t: SZT_F
1084 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1085 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1088 2009-02-12 Simon Goldschmidt
1089 * init.h: Added LWIP_VERSION to get the current version of the stack
1091 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1092 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1093 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1096 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1097 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1098 is only used by UDPLITE at present, so conditionalise it.
1100 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1101 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1102 "seed" address. This should reduce AUTOIP conflicts if
1103 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1105 2008-10-02 Jonathan Larmour and Rishi Khan
1106 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1109 2008-06-30 Simon Goldschmidt
1110 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1111 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1112 mem_free to run between mem_malloc iterations. Added illegal counter for
1115 2008-06-27 Simon Goldschmidt
1116 * stats.h/.c, some other files: patch #6483: stats module improvement:
1117 Added defines to display each module's statistic individually, added stats
1118 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1120 2008-06-17 Simon Goldschmidt
1121 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1122 (define LWIP_ERR_T in cc.h)
1124 2008-06-17 Simon Goldschmidt
1125 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1128 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1129 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1130 modified version of patch # 6370: Moved loopif code to netif.c so that
1131 loopback traffic is supported on all netifs (all local IPs).
1132 Added option to limit loopback packets for each netifs.
1136 2009-08-12 Kieran Mansley
1137 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1138 out of window or out of order properly
1140 2009-08-12 Kieran Mansley
1141 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1143 2009-07-28 Simon Goldschmidt
1144 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1146 2009-07-27 Kieran Mansley
1147 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1149 2009-07-09 Kieran Mansley
1150 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1151 recv_avail and don't increment counters until message successfully
1154 2009-06-25 Kieran Mansley
1155 * api_msg.c api.h: BUG26722: initialise netconn write variables
1158 2009-06-25 Kieran Mansley
1159 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1161 2009-06-25 Kieran Mansley
1162 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1163 simultaneous close behaviour, and make snd_nxt have the same meaning
1166 2009-05-12 Simon Goldschmidt
1167 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1168 arp_table / uses etharp_query" by adding etharp_gratuitous()
1170 2009-05-12 Simon Goldschmidt
1171 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1172 to the IP header (used by igmp_ip_output_if)
1174 2009-05-06 Simon Goldschmidt
1175 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1176 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1178 2009-05-05 Simon Goldschmidt
1179 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1182 2009-05-04 Simon Goldschmidt
1183 * init.c: snmp was not initialized in lwip_init()
1185 2009-05-04 Frédéric Bernon
1186 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1188 2009-05-03 Simon Goldschmidt
1189 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1190 (and unsent->next == NULL)
1192 2009-05-02 Simon Goldschmidt
1193 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1194 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1196 2009-05-02 Simon Goldschmidt
1197 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1199 2009-05-01 Simon Goldschmidt
1200 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1202 2009-05-01 Simon Goldschmidt
1203 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1205 2009-04-29 Frédéric Bernon
1206 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1207 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1208 of broadcast packets even when this option wasn't set. Port maintainers
1209 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1210 If you want this option also filter broadcast on recv operations, you also
1211 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1213 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1214 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1215 DHCP/AUTOIP cooperation
1217 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1218 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1219 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1220 right place in tcp_output and tcp_rexmit).
1222 2009-04-25 Simon Goldschmidt
1223 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1224 when debugging": memp_sizes contained the wrong sizes (including sanity
1225 regions); memp pools for MEM_USE_POOLS were too small
1227 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1228 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1229 behavior, with with ip address string not ended by a '\0', a space or a
1232 2009-04-19 Simon Goldschmidt
1233 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1234 pcb->err is called, not pcb->connected (with an error code).
1236 2009-04-19 Simon Goldschmidt
1237 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1238 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1240 2009-04-19 Simon Goldschmidt
1241 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1242 in the header pbuf, not the data pbuf)
1244 2009-04-18 Simon Goldschmidt
1245 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1247 2009-04-15 Simon Goldschmidt
1248 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1250 2009-04-15 Simon Goldschmidt
1251 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1253 2009-04-15 Simon Goldschmidt
1254 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1255 ip_hinted_output() (for smaller code mainly)
1257 2009-04-15 Simon Goldschmidt
1258 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1260 2009-04-15 Simon Goldschmidt
1261 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1262 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1263 is big enough in dhcp_start
1265 2009-04-15 Simon Goldschmidt
1266 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1268 2009-04-15 Simon Goldschmidt
1269 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1271 2009-04-15 Simon Goldschmidt
1272 * sockets.c: bug #26121: set_errno can be overridden
1274 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1275 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1278 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1279 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1282 2009-03-31 Kieran Mansley
1283 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1284 updates are calculated and sent (BUG20515)
1286 * tcp_in.c: cope with SYN packets received during established states,
1287 and retransmission of initial SYN.
1289 * tcp_out.c: set push bit correctly when tcp segments are merged
1291 2009-03-27 Kieran Mansley
1292 * tcp_out.c set window correctly on probes (correcting change made
1295 2009-03-26 Kieran Mansley
1296 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1297 connections where no reset required (bug #25622)
1299 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1302 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1303 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1304 too small depending on MEM_ALIGNMENT
1306 2009-02-16 Simon Goldschmidt
1307 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1308 converted size argument of netconn_write to 'size_t'
1310 2009-02-16 Simon Goldschmidt
1311 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1312 by moving accept callback function pointer to TCP_PCB_COMMON
1314 2009-02-12 Simon Goldschmidt
1315 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1318 2009-02-11 Simon Goldschmidt
1319 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1321 2009-02-11 Simon Goldschmidt
1322 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1323 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1325 2009-02-10 Simon Goldschmidt
1326 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1327 Accepts_pending is decrease on a corresponding listen pcb when a connection
1328 in state SYN_RCVD is close.
1330 2009-01-28 Jonathan Larmour
1331 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1334 2008-12-19 Simon Goldschmidt
1335 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1337 2008-12-10 Tamas Somogyi, Frédéric Bernon
1338 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1339 port uses deleted netbuf.
1341 2008-10-18 Simon Goldschmidt
1342 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1345 2008-10-15 Simon Goldschmidt
1346 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1347 by packing the struct ip_reass_helper.
1349 2008-10-03 David Woodhouse, Jonathan Larmour
1350 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1352 2008-10-02 Jonathan Larmour
1353 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1354 padding is included.
1356 2008-09-30 Jonathan Larmour
1357 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1358 assertion check that addrlen isn't NULL.
1360 2008-09-30 Jonathan Larmour
1361 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1363 2008-08-26 Simon Goldschmidt
1364 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1365 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1367 2008-08-14 Simon Goldschmidt
1368 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1369 tcp_close returns != ERR_OK)
1371 2008-07-08 Frédéric Bernon
1372 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1373 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1375 2008-06-24 Jonathan Larmour
1376 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1377 if tcp_seg_copy fails.
1379 2008-06-17 Simon Goldschmidt
1380 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1381 and created defines for swapping bytes and folding u32 to u16.
1383 2008-05-30 Kieran Mansley
1384 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1385 rather than rcv_ann_wnd when deciding if packets are in-window.
1386 Contributed by <arasmussen@consultant.datasys.swri.edu>
1388 2008-05-30 Kieran Mansley
1389 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1390 passing as function pointers when MEM_LIBC_MALLOC is defined.
1392 2008-05-09 Jonathan Larmour
1393 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1394 stop it being treated as a fatal error.
1396 2008-04-15 Simon Goldschmidt
1397 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1400 2008-03-27 Simon Goldschmidt
1401 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1402 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1403 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1404 or heap memory from interrupt context
1406 2008-03-26 Simon Goldschmidt
1407 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1408 host sent a zero mss as TCP option.
1415 2008-03-10 Jonathan Larmour
1416 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1417 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1419 2008-01-22 Frédéric Bernon
1420 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1421 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1423 2008-01-14 Frédéric Bernon
1424 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1425 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1426 tcp_recv callback (see rawapi.txt).
1428 2008-01-14 Frédéric Bernon, Marc Chaland
1429 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1431 2008-01-12 Frédéric Bernon
1432 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1433 netconn::sem per netconn::op_completed like suggested for the task #7490
1434 "Add return value to sys_mbox_post".
1436 2008-01-12 Frédéric Bernon
1437 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1438 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1439 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1441 2008-01-10 Frédéric Bernon
1442 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1443 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1444 "blocking" ("block" parameter = 1).
1446 2008-01-10 Frédéric Bernon
1447 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1448 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1449 "Add return value to sys_mbox_post".
1451 2008-01-05 Frédéric Bernon
1452 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1453 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1454 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1455 indicate the number of pointers query by the mailbox. There is three defines
1456 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1457 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1458 parameter in your implementation, but to ignore it to keep the previous behavior.
1459 The new sys_mbox_trypost function return a value to know if the mailbox is
1460 full or if the message is posted. Take a look to sys_arch.txt for more details.
1461 This new function is used in tcpip_input (so, can be called in an interrupt
1462 context since the function is not blocking), and in recv_udp and recv_raw.
1464 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1465 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1466 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1467 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1468 documentation in the rawapi.txt file.
1470 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1471 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1473 2007-12-31 Frédéric Bernon, Luca Ceresoli
1474 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1475 in autoip". The change in etharp_raw could be removed, since all calls to
1476 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1477 wrong in the future.
1479 2007-12-30 Frédéric Bernon, Tom Evans
1480 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1481 Filtering" reported by Tom Evans.
1483 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1484 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1485 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1486 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1487 keep accepting new connections.
1489 2007-12-13 Frédéric Bernon
1490 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1491 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1493 2007-12-12 Frédéric Bernon
1494 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1495 are the one which have ram usage.
1497 2007-12-05 Frédéric Bernon
1498 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1499 set of variables (=0) or a local one (=1). In this last case, your port should
1500 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1501 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1503 2007-12-03 Simon Goldschmidt
1504 * ip.c: ip_input: check if a packet is for inp first before checking all other
1505 netifs on netif_list (speeds up packet receiving in most cases)
1507 2007-11-30 Simon Goldschmidt
1508 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1509 UDP: move a (connected) pcb selected for input to the front of the list of
1510 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1513 2007-11-28 Simon Goldschmidt
1514 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1516 2007-11-25 Simon Goldschmidt
1517 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1520 2007-11-24 Simon Goldschmidt
1521 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1522 to the new file netdb.c; included lwip_getaddrinfo.
1524 2007-11-21 Simon Goldschmidt
1525 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1526 based on the MTU of the netif used to send. Enabled by default. Disable by
1527 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1529 2007-11-19 Frédéric Bernon
1530 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1531 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1532 copy dns payload to parse the response), return an error if there is no place
1533 for a new query, and fix some minor problems.
1535 2007-11-16 Simon Goldschmidt
1536 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1537 removed files: core/inet.c, core/inet6.c
1538 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1539 inet and chksum part; changed includes in all lwIP files as appropriate
1541 2007-11-16 Simon Goldschmidt
1542 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1543 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1544 (gethostbyname/gethostbyname_r).
1546 2007-11-15 Jim Pettinato, Frédéric Bernon
1547 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1548 requests with RAW api interface. Initialization is done in lwip_init() with
1549 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1550 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1551 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1552 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1553 list with points to improve.
1555 2007-11-06 Simon Goldschmidt
1556 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1557 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1558 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1560 2007-11-06 Simon Goldschmidt
1561 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1562 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1563 implementation from netconn api applications.
1565 2007-11-03 Frédéric Bernon
1566 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1567 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1568 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1569 it. This is a first release which have to be improve for TCP. Note it used the
1570 netconn::recv_avail which need to be more "thread-safe" (note there is already
1571 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1573 2007-11-01 Frédéric Bernon, Marc Chaland
1574 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1575 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1576 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1577 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1578 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1580 2007-10-24 Frédéric Bernon
1581 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1582 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1583 some code (like we have talk in "patch #5919 : Create compile switch to remove
1584 select code"), but it could be done later.
1586 2007-10-08 Simon Goldschmidt
1587 * many files: Changed initialization: many init functions are not needed any
1588 more since we now rely on the compiler initializing global and static
1591 2007-10-06 Simon Goldschmidt
1592 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1593 to enqueue the received pbufs so that multiple packets can be reassembled
1594 simultaneously and no static reassembly buffer is needed.
1596 2007-10-05 Simon Goldschmidt
1597 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1598 all netifs (or ports) can use it.
1600 2007-10-05 Frédéric Bernon
1601 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1602 common function to reduce a little bit the footprint (for all functions using
1603 only the "netif" parameter).
1605 2007-10-03 Frédéric Bernon
1606 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1607 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1608 a little bit the footprint (for all functions using only the "netif" parameter).
1610 2007-09-15 Frédéric Bernon
1611 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1612 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1613 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1614 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1616 2007-09-10 Frédéric Bernon
1617 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1618 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1619 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1620 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1621 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1622 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1623 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1624 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1625 when it's queried (any direct call to "sysuptime" is changed by a call to
1626 snmp_get_sysuptime).
1628 2007-09-09 Frédéric Bernon, Bill Florac
1629 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1630 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1631 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1632 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1633 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1634 the next query message to receive the matching multicast streams).
1636 2007-09-08 Frédéric Bernon
1637 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1638 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1639 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1640 Enable to access to these fields with LWIP_TCP=0.
1642 2007-09-05 Frédéric Bernon
1643 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1644 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1645 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1646 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1647 help to reduce footprint, and to reduce "visibility" on the Internet.
1649 2007-09-05 Frédéric Bernon, Bill Florac
1650 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1651 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1652 parameters have to be provided: a task name, and a task stack size. For this
1653 one, since it's platform dependant, you could define the best one for you in
1654 your lwipopts.h. For port maintainers, you can just add these new parameters
1655 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1658 2007-09-05 Frédéric Bernon
1659 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1660 inside init.c for task #7142 "Sanity check user-configurable values".
1662 2007-09-04 Frédéric Bernon, Bill Florac
1663 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1664 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1665 value). It will avoid potential fragmentation problems, use a counter to know
1666 how many times a group is used on an netif, and free it when all applications
1667 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1668 check if LWIP_IGMP!=0).
1670 2007-09-03 Frédéric Bernon
1671 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1672 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1673 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1674 and/or the "interface" field (for netconn layer), for join/leave operations.
1675 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1676 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1678 2007-08-30 Frédéric Bernon
1679 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1680 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1681 with other API (application based on raw API, or future "socket2" API). Ports
1682 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1684 2007-08-30 Frédéric Bernon, Jonathan Larmour
1685 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1686 user-configurable values".
1688 2007-08-29 Frédéric Bernon
1689 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1690 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1691 spirit than the others modules. Modify some IGMP debug traces.
1693 2007-08-29 Frédéric Bernon
1694 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1695 Add lwip_init function to regroup all modules initializations, and to provide
1696 a place to add code for task #7142 "Sanity check user-configurable values".
1697 Ports maintainers should remove direct initializations calls from their code,
1698 and add init.c in their makefiles. Note that lwip_init() function is called
1699 inside tcpip_init, but can also be used by raw api users since all calls are
1700 disabled when matching options are disabled. Also note that their is new options
1701 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1703 2007-08-26 Marc Boucher
1704 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1705 since they can under certain circumstances be called with an invalid conn
1706 pointer after the connection has been closed (and conn has been freed).
1708 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1709 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1710 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1712 2007-08-22 Frédéric Bernon
1713 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1714 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1716 2007-08-22 Frédéric Bernon
1717 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1718 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1719 name is tcpip_input (we keep the name of 1.2.0 function).
1721 2007-08-17 Jared Grubb
1722 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1723 settings into new memp_std.h and optional user file lwippools.h. This adds
1724 more dynamic mempools, and allows the user to create an arbitrary number of
1725 mempools for mem_malloc.
1727 2007-08-16 Marc Boucher
1728 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1729 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1730 close the connection.
1732 2007-08-16 Marc Boucher
1733 * sockets.c: lwip_accept(): check netconn_peer() error return.
1735 2007-08-16 Marc Boucher
1736 * mem.c, mem.h: Added mem_calloc().
1738 2007-08-16 Marc Boucher
1739 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1740 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1741 and starving other message types.
1742 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1744 2007-08-16 Marc Boucher
1745 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1746 type and flgs (later renamed to flags).
1747 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1748 Improved lwip_recvfrom(). TCP push now propagated.
1750 2007-08-16 Marc Boucher
1751 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1754 2007-08-16 Marc Boucher
1755 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1756 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1757 Added PPPoE support and various PPP improvements.
1759 2007-07-25 Simon Goldschmidt
1760 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1761 making netbuf_copy_partial use this function.
1763 2007-07-25 Simon Goldschmidt
1764 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1765 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1768 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1769 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1770 a link callback in the netif struct, and functions to handle it. Be carefull
1771 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1772 if you want to be sure to be compatible with future changes...
1774 2007-06-30 Frédéric Bernon
1775 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1777 2007-06-21 Simon Goldschmidt
1778 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1779 LWIP_AUTOIP =0 and =1 to remove redundant code.
1781 2007-06-21 Simon Goldschmidt
1782 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1783 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1784 heap. This both prevents memory fragmentation and gives a higher speed
1785 at the cost of more memory consumption. Turned off by default.
1787 2007-06-21 Simon Goldschmidt
1788 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1789 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1790 int to be able to send a bigger buffer than 64K with one time (mainly
1791 used from lwip_send).
1793 2007-06-21 Simon Goldschmidt
1794 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1795 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1797 2007-06-21 Simon Goldschmidt
1798 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1799 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1800 changes on low memory or empty send-buffer.
1802 2007-06-18 Simon Goldschmidt
1803 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1804 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1805 used for ethernet and struct eth_addr already had a defined length of 6).
1807 2007-06-17 Simon Goldschmidt
1808 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1809 to disable UDP checksum generation on transmit.
1811 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1812 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1813 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1814 this macro to check "conn" parameter in api_msg.c functions.
1816 2007-06-11 Simon Goldschmidt
1817 * sockets.c, sockets.h: Added UDP lite support for sockets
1819 2007-06-10 Simon Goldschmidt
1820 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1821 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1824 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1825 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1826 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1827 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1828 (see TODO mark in the source code).
1830 2007-06-09 Simon Goldschmidt
1831 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1832 etharp_output() to match netif->output so etharp_output() can be used
1833 directly as netif->output to save one function call.
1835 2007-06-08 Simon Goldschmidt
1836 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1837 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1838 added initialization of those to ethernetif, slipif and loopif.
1840 2007-05-18 Simon Goldschmidt
1841 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1842 (defaulting to off for now) that can be set to 0 to send fragmented
1843 packets by passing PBUF_REFs down the stack.
1845 2007-05-23 Frédéric Bernon
1846 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1847 connections, such present in patch #5959.
1849 2007-05-23 Frédéric Bernon
1850 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1851 code in only one part...
1853 2007-05-18 Simon Goldschmidt
1854 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1855 elements to overflow. This is achieved by adding some bytes before and after
1856 each pool element (increasing their size, of course), filling them with a
1857 prominent value and checking them on freeing the element.
1858 Set it to 2 to also check every element in every pool each time memp_malloc()
1859 or memp_free() is called (slower but more helpful).
1861 2007-05-10 Simon Goldschmidt
1862 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1863 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1866 2007-05-11 Frédéric Bernon
1867 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1868 Include a function pointer instead of a table index in the message to reduce
1869 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1870 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1872 2007-05-10 Simon Goldschmidt
1873 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1874 \ extern "C" {' in all header files. Now you can write your application using
1875 the lwIP stack in C++ and simply #include the core files. Note I have left
1876 out the netif/ppp/*h header files for now, since I don't know which files are
1877 included by applications and which are for internal use only.
1879 2007-05-09 Simon Goldschmidt
1880 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1881 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1882 situations where some compilers might inline the copy and save a function
1883 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1885 2007-05-08 Simon Goldschmidt
1886 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1887 to be overriden in case the C-library malloc implementation is not protected
1888 against concurrent access.
1890 2007-05-04 Simon Goldschmidt (Atte Kojo)
1891 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1892 multiple packets to the same host.
1894 2007-05-04 Frédéric Bernon, Jonathan Larmour
1895 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1896 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1897 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1898 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1899 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1900 these fields are now renamed "addr" & "port".
1902 2007-04-11 Jonathan Larmour
1903 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1904 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1905 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1906 by the port in sys_arch.h if desired.
1908 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1909 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1910 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1911 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1913 2007-04-05 Frédéric Bernon
1914 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1916 2007-04-04 Simon Goldschmidt
1917 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1918 use this for and architecture-independent form to tell the compiler you intentionally
1919 are not using this variable. Can be overriden in cc.h.
1921 2007-03-28 Frédéric Bernon
1922 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1923 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1924 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1925 It will be used by DHCP to register a client hostname, but can also be use when you call
1928 2007-03-28 Frédéric Bernon
1929 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1930 initialize a network interface's flag with. It tell this interface is an ethernet
1931 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1932 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1934 2007-03-26 Frédéric Bernon, Jonathan Larmour
1935 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1936 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1937 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1938 is done in tcpip_init function.
1940 2007-03-22 Frédéric Bernon
1941 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1942 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1943 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1944 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1945 but never used. Fix msg_in.c with the correct #if test for a stat display.
1947 2007-03-21 Kieran Mansley
1948 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1949 Provides callback on netif up/down state change.
1951 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1952 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1953 ip.c, netif.h, tcpip.c, opt.h:
1954 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1955 filter per all network interfaces. Declare a new function in netif to enable to
1956 control the MAC filter (to reduce lwIP traffic processing).
1958 2007-03-11 Frédéric Bernon
1959 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1960 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1961 unless you know what you're doing (default are RFC1122 compliant). Note
1962 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1964 2007-03-08 Frédéric Bernon
1965 * tcp.h: Keepalive values can be configured at compile time, but don't change
1966 this unless you know what you're doing (default are RFC1122 compliant).
1968 2007-03-08 Frédéric Bernon
1969 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1970 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1971 on UDP sockets/netconn.
1973 2007-03-08 Simon Goldschmidt
1974 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1976 2007-03-06 Frédéric Bernon
1977 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1978 Implement SO_RCVTIMEO on UDP sockets/netconn.
1980 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1981 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1982 on the stack and remove the API msg type from memp
1984 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1985 * sockets.h, sockets.c: Move socket initialization to new
1986 lwip_socket_init() function.
1987 NOTE: this changes the API with ports. Ports will have to be
1988 updated to call lwip_socket_init() now.
1990 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1991 * api_lib.c: Use memcpy in netbuf_copy_partial.
1996 2008-03-17 Frédéric Bernon, Ed Kerekes
1997 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1998 some problems to fill the IP header on some targets, use now the
1999 ip.h macros to do it).
2001 2008-03-13 Frédéric Bernon
2002 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2003 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2004 TCP connection caused a crash. Note that using (lwip_)recvfrom
2005 like this is a bit slow and that using (lwip)getpeername is the
2006 good lwip way to do it (so, using recv is faster on tcp sockets).
2008 2008-03-12 Frédéric Bernon, Jonathan Larmour
2009 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2010 recv_raw() does not consume data", and the ping sample (with
2011 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2012 returned the IP payload, without the IP header).
2014 2008-03-04 Jonathan Larmour
2015 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2016 and/or warnings on some systems where mem_size_t and size_t differ.
2017 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2019 2008-03-04 Kieran Mansley (contributions by others)
2020 * Numerous small compiler error/warning fixes from contributions to
2021 mailing list after 1.3.0 release candidate made.
2023 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2024 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2026 2008-01-15 Kieran Mansley
2027 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2028 prevented from sending by a small send window, not just a zero
2031 2008-01-09 Jonathan Larmour
2032 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2033 conflict with Linux system headers.
2035 2008-01-06 Jonathan Larmour
2036 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2037 address entirely on receiving a DHCPNAK, and restarting discovery.
2039 2007-12-21 Simon Goldschmidt
2040 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2041 is not protected" by using new macros for interlocked access to modify/test
2042 netconn->recv_avail.
2044 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2045 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2047 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2048 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2049 of silly window avoidance and prevent lwIP from shrinking the window)
2051 2007-12-04 Simon Goldschmidt
2052 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2053 data packet was lost): add assert that all segment lists are empty in
2054 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2055 state from LAST_ACK in tcp_process
2057 2007-12-02 Simon Goldschmidt
2058 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2059 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2060 has to be set to 0 in lwipopts.h
2062 2007-12-02 Simon Goldschmidt
2063 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2064 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2065 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2066 This is a fix for thread-safety and allocates all items needed for a netconn
2067 when the netconn is created.
2069 2007-11-30 Simon Goldschmidt
2070 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2071 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2072 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2073 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2075 2007-11-27 Simon Goldschmidt
2076 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2077 letting ip_route only use netifs that are up.
2079 2007-11-27 Simon Goldschmidt
2080 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2081 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2082 sockets block most operations once they have seen a fatal error.
2084 2007-11-27 Simon Goldschmidt
2085 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2086 netif to send as an argument (to be able to send on netifs that are down).
2088 2007-11-26 Simon Goldschmidt
2089 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2092 2007-11-21 Simon Goldschmidt
2093 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2094 Fixed the nagle algorithm; nagle now also works for all raw API applications
2095 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2097 2007-11-12 Frédéric Bernon
2098 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2099 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2100 context in do_getaddr.
2102 2007-11-10 Simon Goldschmidt
2103 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2104 happen any time). Now the packet simply isn't enqueued when out of memory.
2106 2007-11-01 Simon Goldschmidt
2107 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2108 TCP_MSS if that is smaller) as long as no MSS option is received from the
2111 2007-11-01 Simon Goldschmidt
2112 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2113 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2114 sending our configured TCP_MSS instead of the one received).
2116 2007-11-01 Simon Goldschmidt
2117 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2118 calculated based on the configured TCP_MSS, not on the MSS option received
2121 2007-10-09 Simon Goldschmidt
2122 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2123 short and also was generated wrong if checksum coverage != tot_len;
2124 receive: checksum was calculated wrong if checksum coverage != tot_len
2126 2007-10-08 Simon Goldschmidt
2127 * mem.c: lfree was not updated in mem_realloc!
2129 2007-10-07 Frédéric Bernon
2130 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2131 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2132 this change cause an API breakage for netconn_addr, since a parameter
2133 type change. Any compiler should cause an error without any changes in
2134 yours netconn_peer calls (so, it can't be a "silent change"). It also
2135 reduce a little bit the footprint for socket layer (lwip_getpeername &
2136 lwip_getsockname use now a common lwip_getaddrname function since
2137 netconn_peer & netconn_addr have the same parameters).
2139 2007-09-20 Simon Goldschmidt
2140 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2141 by checking tcp_tw_pcbs also
2143 2007-09-19 Simon Goldschmidt
2144 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2146 2007-09-15 Mike Kleshov
2147 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2149 2007-09-06 Frédéric Bernon
2150 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2151 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2152 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2153 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2155 2007-08-30 Frédéric Bernon
2156 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2157 and fix some coding style.
2159 2007-08-28 Frédéric Bernon
2160 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2161 kind of packets. These packets are considered like Ethernet packets (payload
2162 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2163 are considered like IP packets (payload pointing to iphdr).
2165 2007-08-27 Frédéric Bernon
2166 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2167 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2168 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2170 2007-08-24 Kieran Mansley
2171 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2172 compiler (Paradigm C++)
2174 2007-08-09 Frédéric Bernon, Bill Florac
2175 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2176 Introduce IGMP_STATS to centralize statistics management.
2178 2007-08-09 Frédéric Bernon, Bill Florac
2179 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2180 packet on a udp pcb binded on an netif's IP address, and not on "any".
2182 2007-08-09 Frédéric Bernon, Bill Florac
2183 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2184 This is mainly on using lookup/lookfor, and some coding styles...
2186 2007-07-26 Frédéric Bernon (and "thedoctor")
2187 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2189 2007-07-25 Simon Goldschmidt
2190 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2191 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2192 (tcp_output is called again later from tcp timers).
2194 2007-07-25 Simon Goldschmidt
2195 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2196 copy_from_pbuf, which illegally modified the given pbuf.
2198 2007-07-25 Simon Goldschmidt
2199 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2200 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2202 2007-07-24 Simon Goldschmidt
2203 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2204 correct state (must be CLOSED).
2206 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2207 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2208 allocation. It now returns NULL.
2210 2007-07-13 Frédéric Bernon
2211 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2214 2007-07-13 Frédéric Bernon
2215 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2216 because current code doesn't follow rawapi.txt documentation.
2218 2007-07-13 Kieran Mansley
2219 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2220 out of sequence processing of received packets
2222 2007-07-03 Simon Goldschmidt
2223 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2224 assumption is made that this pbuf is in one piece (i.e. not chained). These
2225 assumptions clash with the possibility of converting to fully pool-based
2226 pbuf implementations, where PBUF_RAM pbufs might be chained.
2228 2007-07-03 Simon Goldschmidt
2229 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2230 when closing tcp netconns: removed conn->sem, less context switches when
2231 closing, both netconn_close and netconn_delete should safely close tcp
2234 2007-07-02 Simon Goldschmidt
2235 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2236 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2237 to cache ARP table indices with each pcb instead of single-entry cache for
2240 2007-07-02 Simon Goldschmidt
2241 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2242 warnings when assigning to smaller types.
2244 2007-06-28 Simon Goldschmidt
2245 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2247 2007-06-28 Simon Goldschmidt
2248 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2249 a segment contained chained pbufs)
2251 2007-06-28 Frédéric Bernon
2252 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2253 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2254 possible to define this macro in your own lwipopts.h to always use C library's
2255 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2257 2007-06-28 Frédéric Bernon
2258 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2259 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2260 in api_lib/api_msg (use pointers and not type with table, etc...)
2262 2007-06-26 Simon Goldschmidt
2263 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2265 2007-06-25 Simon Goldschmidt
2266 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2267 for udp packets with no matching pcb.
2269 2007-06-25 Simon Goldschmidt
2270 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2271 could get udp input packets if the remote side matched.
2273 2007-06-13 Simon Goldschmidt
2274 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2275 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2277 2007-06-13 Simon Goldschmidt
2278 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2279 -> netconn_new_..() does not allocate a new connection for unsupported
2282 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2283 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2284 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2286 2007-06-13 Frédéric Bernon, Matthias Weisser
2287 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2288 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2289 some macro names collision with some OS macros.
2291 2007-06-11 Simon Goldschmidt
2292 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2293 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2294 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2297 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2298 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2299 where TCP flags wasn't initialized in tcp_keepalive.
2301 2007-06-03 Simon Goldschmidt
2302 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2303 registered, p->payload was modified without modifying p->len if sending
2304 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2306 2007-06-03 Simon Goldschmidt
2307 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2308 re-used the input pbuf even if that didn't have enough space to include the
2309 link headers. Now the space is tested and a new pbuf is allocated for the
2310 echo response packet if the echo request pbuf isn't big enough.
2312 2007-06-01 Simon Goldschmidt
2313 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2315 2007-05-23 Frédéric Bernon
2316 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2317 allocated by do_listen if success) and netconn_accept errors handling. In
2318 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2319 by ASSERT, except for netconn_delete.
2321 2007-05-23 Frédéric Bernon
2322 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2323 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2324 directly close the recvmbox).
2326 2007-05-22 Simon Goldschmidt
2327 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2328 bound but unconnected (and non-listening) tcp_pcbs.
2330 2007-05-22 Frédéric Bernon
2331 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2332 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2333 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2334 like "sys_timeout" in their application threads.
2336 2007-05-22 Frédéric Bernon
2337 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2338 which parameters are used by which do_xxx function, and to avoid "misusing"
2339 parameters (patch #5938).
2341 2007-05-22 Simon Goldschmidt
2342 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2343 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2344 is only 8 bits wide. This affects the api, as there, the protocol was
2347 2007-05-18 Simon Goldschmidt
2348 * memp.c: addition to patch #5913: smaller pointer was returned but
2349 memp_memory was the same size -> did not save memory.
2351 2007-05-16 Simon Goldschmidt
2352 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2355 2007-05-16 Simon Goldschmidt
2356 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2357 as the one of the netif used for sending to prevent sending from old
2358 addresses after a netif address gets changed (partly fixes bug #3168).
2360 2007-05-16 Frédéric Bernon
2361 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2362 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2363 tcpip_init) because we have to be sure that network interfaces are already
2364 added (mac filter is updated only in igmp_init for the moment).
2366 2007-05-16 Simon Goldschmidt
2367 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2368 into sys_arch_sem_wait calls to prevent timers from running while waiting
2369 for the heap. This fixes bug #19167.
2371 2007-05-13 Simon Goldschmidt
2372 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2373 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2376 2007-05-07 Simon Goldschmidt
2377 * mem.c: Another attempt to fix bug #17922.
2379 2007-05-04 Simon Goldschmidt
2380 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2381 implementation so that it can be reused (don't allocate the target
2382 pbuf inside pbuf_copy()).
2384 2007-05-04 Simon Goldschmidt
2385 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2386 to save a little RAM (next pointer of memp is not used while not in pool).
2389 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2392 2007-04-23 Simon Goldschmidt
2393 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2394 in NULL reference for incoming TCP packets". Loopif has to be configured
2395 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2396 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2397 putting packets on a list that is fed to the stack by calling loopif_poll()
2398 (single-thread / NO_SYS / polling environment where e.g.
2399 netif->input() = ip_input).
2401 2007-04-17 Jonathan Larmour
2402 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2403 the difference between two u16_t's.
2404 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2405 MEMP_NUM_NETCONN in sockets.c right now.
2407 2007-04-12 Jonathan Larmour
2408 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2410 2007-04-12 Kieran Mansley
2411 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2412 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2414 2007-04-11 Simon Goldschmidt
2415 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2416 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2417 pbuf.c: removed functions no needed any more (by etharp).
2419 2007-04-11 Kieran Mansley
2420 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2421 "Constant is long" warnings with 16bit compilers. Contributed by
2422 avatar@mmlab.cse.yzu.edu.tw
2424 2007-04-05 Frédéric Bernon, Jonathan Larmour
2425 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2426 the mailbox is active". Now, the post is only done during a connect, and do_send,
2427 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2429 2007-04-03 Frédéric Bernon
2430 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2431 packets. See patch #5834.
2433 2007-03-30 Frédéric Bernon
2434 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2435 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2437 2007-03-30 Frédéric Bernon
2438 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2439 others environment defines (these were too "generic").
2441 2007-03-28 Frédéric Bernon
2442 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2443 result and can cause a crash. lwip_send now check netbuf_ref result.
2445 2007-03-28 Simon Goldschmidt
2446 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2447 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2448 defined. This is the way it should have been already (looking at
2451 2007-03-28 Kieran Mansley
2452 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2453 IP and TCP headers *and* physical link headers
2455 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2456 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2457 to send some garbage. It is not a definitive solution, but the patch does solve
2458 the problem for most cases.
2460 2007-03-22 Frédéric Bernon
2461 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2463 2007-03-22 Frédéric Bernon
2464 * api_lib.c: somes resources couldn't be freed if there was errors during
2465 netconn_new_with_proto_and_callback.
2467 2007-03-22 Frédéric Bernon
2468 * ethernetif.c: update netif->input calls to check return value. In older ports,
2469 it's a good idea to upgrade them, even if before, there could be another problem
2470 (access to an uninitialized mailbox).
2472 2007-03-21 Simon Goldschmidt
2473 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2474 by casting to unsigned).
2476 2007-03-21 Frédéric Bernon
2477 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2478 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2479 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2480 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2481 faster and more reliable communication between api_lib and tcpip.
2483 2007-03-21 Frédéric Bernon
2484 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2486 2007-03-21 Frédéric Bernon
2487 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2489 2007-03-21 Kieran Mansley
2490 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2493 2007-03-21 Kieran Mansley
2494 * Fix all uses of pbuf_header to check the return value. In some
2495 cases just assert if it fails as I'm not sure how to fix them, but
2496 this is no worse than before when they would carry on regardless
2499 2007-03-21 Kieran Mansley
2500 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2501 comment out missing header include in icmp.c
2503 2007-03-20 Frédéric Bernon
2504 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2505 synchronized with memp.h.
2507 2007-03-20 Frédéric Bernon
2508 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2509 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2510 network interfaces. Also fix a compiler warning.
2512 2007-03-20 Kieran Mansley
2513 * udp.c: Only try and use pbuf_header() to make space for headers if
2514 not a ROM or REF pbuf.
2516 2007-03-19 Frédéric Bernon
2517 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2520 2007-03-19 Frédéric Bernon
2521 * Remove unimplemented "memp_realloc" function from memp.h.
2523 2007-03-11 Simon Goldschmidt
2524 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2527 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2528 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2529 (missing `const' qualifier in socket functions), to get more compatible to
2530 standard POSIX sockets.
2532 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2533 * sockets.c: Add asserts inside bind, connect and sendto to check input
2534 parameters. Remove excessive set_errno() calls after get_socket(), because
2535 errno is set inside of get_socket(). Move last sock_set_errno() inside
2538 2007-03-09 Simon Goldschmidt
2539 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2540 was allocated too small.
2542 2007-03-06 Simon Goldschmidt
2543 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2544 the stack from concurrent access.
2546 2007-03-06 Frédéric Bernon, Dmitry Potapov
2547 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2548 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2550 2007-03-06 Simon Goldschmidt
2551 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2552 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2554 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2555 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2556 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2557 Allow to do ARP processing for incoming packets inside tcpip_thread
2558 (protecting ARP layer against concurrent access). You can also disable
2559 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2560 Older ports have to use tcpip_ethinput.
2562 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2563 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2564 from pointer target type"
2566 2007-03-05 Frédéric Bernon
2567 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2568 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2570 2007-03-04 Frédéric Bernon
2571 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2574 2007-03-04 Frédéric Bernon
2575 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2577 The api_msg struct stay on the stack (not moved to netconn struct).
2579 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2580 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2581 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2582 Also fixed cast warning in pbuf_alloc()
2584 2007-03-04 Simon Goldschmidt
2585 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2586 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2588 2007-03-03 Frédéric Bernon
2589 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2590 It is static, and never used in udp.c except udp_init().
2592 2007-03-02 Simon Goldschmidt
2593 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2594 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2595 initialized before tcpip_thread is running (e.g. before OS is started)
2597 2007-03-02 Frédéric Bernon
2598 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2601 2007-02-28 Kieran Mansley
2602 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2603 outside the region of the pbuf by pbuf_header()
2605 2007-02-28 Kieran Mansley
2606 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2607 when supplied timeout is also non-zero
2611 2006-12-05 Leon Woestenberg
2612 * CHANGELOG: Mention STABLE-1.2.0 release.
2616 2006-12-01 Christiaan Simons
2617 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2618 Note this is a workaround. Currently I have no other options left.
2620 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2621 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2622 to include/lwip/opt.h.
2623 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2624 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2625 * opt.h: Add above new options.
2627 2006-08-18 Christiaan Simons
2628 * tcp_{in,out}.c: added SNMP counters.
2629 * ipv4/ip.c: added SNMP counters.
2630 * ipv4/ip_frag.c: added SNMP counters.
2632 2006-08-08 Christiaan Simons
2633 * etharp.{c,h}: added etharp_find_addr() to read
2634 (stable) ethernet/IP address pair from ARP table
2636 2006-07-14 Christiaan Simons
2637 * mib_structs.c: added
2638 * include/lwip/snmp_structs.h: added
2639 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2641 2006-07-06 Christiaan Simons
2642 * snmp/asn1_{enc,dec}.c added
2644 * snmp/msg_{in,out}.c added
2645 * include/lwip/snmp_asn1.h added
2646 * include/lwip/snmp_msg.h added
2647 * doc/snmp_agent.txt added
2649 2006-03-29 Christiaan Simons
2650 * inet.c, inet.h: Added platform byteswap support.
2651 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2652 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2656 2006-11-30 Christiaan Simons
2657 * dhcp.c: Fixed false triggers of request_timeout.
2659 2006-11-28 Christiaan Simons
2660 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2662 2006-10-11 Christiaan Simons
2663 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2664 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2665 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2666 identifier from 170 to 136 (bug #17574).
2668 2006-10-10 Christiaan Simons
2669 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2671 2006-08-17 Christiaan Simons
2672 * udp.c: Fixed bug #17200, added check for broadcast
2673 destinations for PCBs bound to a unicast address.
2675 2006-08-07 Christiaan Simons
2676 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2678 2006-06-27 Christiaan Simons
2679 * api_msg.c: Applied patch for cold case (bug #11135).
2680 In accept_function() ensure newconn->callback is always initialized.
2682 2006-06-15 Christiaan Simons
2683 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2684 facilitate printing of mem_size_t and u16_t statistics.
2686 2006-06-14 Christiaan Simons
2687 * api_msg.c: Applied patch #5146 to handle allocation failures
2688 in accept() by Kevin Lawson.
2690 2006-05-26 Christiaan Simons
2691 * api_lib.c: Removed conn->sem creation and destruction
2692 from netconn_write() and added sys_sem_new to netconn_new_*.
2696 2006-03-03 Christiaan Simons
2697 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2698 access and added pbuf_alloc() return value checks.
2700 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2701 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2702 now handled by the checksum routine properly.
2704 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2705 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2706 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2708 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2709 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2710 submitted by Mitrani Hiroshi.
2712 2005-12-15 Christiaan Simons
2713 * inet.c: Disabled the added summing routine to preserve code space.
2715 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2716 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2717 Added Curt McDowell's optimized checksumming routine for future
2718 inclusion. Need to create test case for unaliged, aligned, odd,
2719 even length combination of cases on various endianess machines.
2721 2005-12-09 Christiaan Simons
2722 * inet.c: Rewrote standard checksum routine in proper portable C.
2724 2005-11-25 Christiaan Simons
2725 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2726 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2727 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2729 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2730 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2731 routine by Peter Jolasson.
2732 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2734 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2735 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2736 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2738 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2739 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2741 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2742 * udp.c: UDP pcb->recv() was called even when it was NULL.
2746 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2747 * etharp.*: Disabled multiple packets on the ARP queue.
2748 This clashes with TCP queueing.
2750 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2751 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2752 Halved the ARP period, doubled the period counts.
2753 ETHARP_MAX_PENDING now should be at least 2. This prevents
2754 the counter from reaching 0 right away (which would allow
2755 too little time for ARP responses to be received).
2757 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2758 * dhcp.c: Decline messages were not multicast but unicast.
2759 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2760 Do not try hard to insert arbitrary packet's source address,
2761 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2762 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2763 querying an address will see it appear in the cache (DHCP could
2764 suffer from this when a server invalidly gave an in-use address.)
2765 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2766 comparing network addresses (identifiers), not the network masks
2768 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2769 IP address actually belongs to the network of the given interface.
2771 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2772 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2776 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2777 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2778 even if one is already pending, if the rcv_wnd is above a threshold
2779 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2780 delayed ACK in order to open the window if the stack is only receiving data.
2782 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2783 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2785 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2786 * etharp.c: Make sure the first pbuf queued on an ARP entry
2787 is properly ref counted.
2789 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2790 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2791 warnings about comparison.
2792 * pbuf.c: Stopped compiler complaining of empty if statement
2793 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2794 * tcp.c: Stopped compiler complaining of empty if statement
2795 when LWIP_DEBUGF() empty.
2796 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2797 * inet.c: Added a couple of casts to quiet the compiler.
2798 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2800 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2801 * inet.c: Made data types consistent in inet_ntoa().
2802 Added casts for return values of checksum routines, to pacify compiler.
2803 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2804 Small corrections to some debugging statements, to pacify compiler.
2806 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2807 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2808 * ethernetif.c Updated low_level_output() to match prototype for
2809 netif->linkoutput and changed low_level_input() similarly for consistency.
2810 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2811 of raw_recv() in raw.h and so avoid compiler error.
2812 * sockets.c: Added trivial (int) cast to keep compiler happier.
2813 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2819 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2820 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2821 your cc.h file defines this either 1 or 0. If non-defined,
2823 * .c: Added <string.h> and <errno.h> includes where used.
2824 * etharp.c: Made some array indices unsigned.
2826 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2827 * netif.*: Added netif_set_up()/down().
2828 * dhcp.c: Changes to restart program flow.
2830 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2831 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2832 single-pass lookup for different candidates. Should exploit locality.
2834 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2835 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2836 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2837 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2838 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2842 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2843 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2844 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2845 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2846 is to prefix the 14-bit Ethernet headers with two padding bytes.
2848 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2849 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2850 * etharp.c: Fixed the case where the packet that initiates the ARP request
2851 is not queued, and gets lost. Fixed the case where the packets destination
2852 address is already known; we now always queue the packet and perform an ARP
2859 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2860 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2861 * Fixed two possible NULL references in rare cases.
2867 * Fixed DHCP which did not include the IP address in DECLINE messages.
2871 * etharp.c has been hauled over a bit.
2877 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2878 * Packets sent from ARP queue had invalid source hardware address.
2882 * Pass-by ARP requests do now update the cache.
2886 * No longer dependent on ctype.h.
2887 * New socket options.
2888 * Raw IP pcb support.
2894 * Some debug formatters and casts fixed.
2895 * Numereous fixes in PPP.
2899 * DEBUGF now is LWIP_DEBUGF
2900 * pbuf_dechain() has been re-enabled.
2901 * Mentioned the changed use of CVS branches in README.
2907 * Fixed pool pbuf memory leak in pbuf_alloc().
2908 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2909 Reported by Savin Zlobec.
2911 * PBUF_POOL chains had their tot_len field not set for non-first
2912 pbufs. Fixed in pbuf_alloc().
2916 * Added PPP stack contributed by Marc Boucher
2920 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2922 * ARP queueuing now queues the latest packet instead of the first.
2923 This is the RFC recommended behaviour, but can be overridden in
2930 * TCP has been fixed to deal with the new use of the pbuf->ref
2933 * DHCP dhcp_inform() crash bug fixed.
2937 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2938 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2939 Implemented by David Haas.
2945 * The packet buffer implementation has been enhanced to support
2946 zero-copy and copy-on-demand for packet buffers which have their
2947 payloads in application-managed memory.
2948 Implemented by David Haas.
2950 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2951 if an outgoing packet can be directly sent on the link, or perform
2952 a copy-on-demand when necessary.
2954 The application can safely assume the packet is sent, and the RAM
2955 is available to the application directly after calling udp_send()
2956 or similar function.
2960 * ARP_QUEUEING should now correctly work for all cases, including
2962 Implemented by Leon Woestenberg.
2966 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2967 to a '0.0.0.0' IP address.
2969 * The packet buffer implementation is changed. The pbuf->ref counter
2970 meaning has changed, and several pbuf functions have been
2971 adapted accordingly.
2973 * netif drivers have to be changed to set the hardware address length field
2974 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2975 See the contrib/ports/c16x cs8900 driver as a driver example.
2977 * netif's have a dhcp field that must be initialized to NULL by the driver.
2978 See the contrib/ports/c16x cs8900 driver as a driver example.
2980 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2981 logged in CVS but have not been explained here.
2983 (0.5.3) Changes since version 0.5.2
2987 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2988 threads because it wasn't protected by semaphores.
2992 * struct ip_addr now packed.
2994 * The name of the time variable in arp.c has been changed to ctime
2995 to avoid conflicts with the time() function.
2997 (0.5.2) Changes since version 0.5.1
3001 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3005 * A bug in tcp_parseopt() could cause the stack to hang because of a
3006 malformed TCP option.
3008 * The address of new connections in the accept() function in the BSD
3009 socket library was not handled correctly.
3011 * pbuf_dechain() did not update the ->tot_len field of the tail.
3013 * Aborted TCP connections were not handled correctly in all
3018 * All protocol header structs are now packed.
3020 * The ->len field in the tcp_seg structure now counts the actual
3021 amount of data, and does not add one for SYN and FIN segments.
3023 (0.5.1) Changes since version 0.5.0
3027 * Possible to run as a user process under Linux.
3029 * Preliminary support for cross platform packed structs.
3031 * ARP timer now implemented.
3035 * TCP output queue length was badly initialized when opening
3038 * TCP delayed ACKs were not sent correctly.
3040 * Explicit initialization of BSS segment variables.
3042 * read() in BSD socket library could drop data.
3044 * Problems with memory alignment.
3046 * Situations when all TCP buffers were used could lead to
3049 * TCP MSS option wasn't parsed correctly.
3051 * Problems with UDP checksum calculation.
3053 * IP multicast address tests had endianess problems.
3055 * ARP requests had wrong destination hardware address.
3059 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3061 * A ->linkoutput() member was added to struct netif.
3063 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3065 * ntoh* macros are now null definitions for big endian CPUs.
3067 (0.5.0) Changes since version 0.4.2
3071 * Redesigned operating system emulation layer to make porting easier.
3073 * Better control over TCP output buffers.
3075 * Documenation added.
3079 * Locking issues in buffer management.
3081 * Bugfixes in the sequential API.
3083 * IP forwarding could cause memory leakage. This has been fixed.
3087 * Directory structure somewhat changed; the core/ tree has been
3090 (0.4.2) Changes since version 0.4.1
3094 * Experimental ARP implementation added.
3096 * Skeleton Ethernet driver added.
3098 * Experimental BSD socket API library added.
3102 * In very intense situations, memory leakage could occur. This has
3107 * Variables named "data" and "code" have been renamed in order to
3108 avoid name conflicts in certain compilers.
3110 * Variable++ have in appliciable cases been translated to ++variable
3111 since some compilers generate better code in the latter case.
3113 (0.4.1) Changes since version 0.4
3117 * TCP: Connection attempts time out earlier than data
3118 transmissions. Nagle algorithm implemented. Push flag set on the
3119 last segment in a burst.
3121 * UDP: experimental support for UDP-Lite extensions.
3125 * TCP: out of order segments were in some cases handled incorrectly,
3126 and this has now been fixed. Delayed acknowledgements was broken
3127 in 0.4, has now been fixed. Binding to an address that is in use
3128 now results in an error. Reset connections sometimes hung an
3129 application; this has been fixed.
3131 * Checksum calculation sometimes failed for chained pbufs with odd
3132 lengths. This has been fixed.
3134 * API: a lot of bug fixes in the API. The UDP API has been improved
3135 and tested. Error reporting and handling has been
3136 improved. Logical flaws and race conditions for incoming TCP
3137 connections has been found and removed.
3139 * Memory manager: alignment issues. Reallocating memory sometimes
3140 failed, this has been fixed.
3142 * Generic library: bcopy was flawed and has been fixed.
3146 * API: all datatypes has been changed from generic ones such as
3147 ints, to specified ones such as u16_t. Functions that return
3148 errors now have the correct type (err_t).
3150 * General: A lot of code cleaned up and debugging code removed. Many
3151 portability issues have been fixed.
3153 * The license was changed; the advertising clause was removed.
3157 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3158 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3161 (0.4) Changes since version 0.3.1
3163 * Memory management has been radically changed; instead of
3164 allocating memory from a shared heap, memory for objects that are
3165 rapidly allocated and deallocated is now kept in pools. Allocation
3166 and deallocation from those memory pools is very fast. The shared
3167 heap is still present but is used less frequently.
3169 * The memory, memory pool, and packet buffer subsystems now support
3170 4-, 2-, or 1-byte alignment.
3172 * "Out of memory" situations are handled in a more robust way.
3174 * Stack usage has been reduced.
3176 * Easier configuration of lwIP parameters such as memory usage,
3177 TTLs, statistics gathering, etc. All configuration parameters are
3178 now kept in a single header file "lwipopts.h".
3180 * The directory structure has been changed slightly so that all
3181 architecture specific files are kept under the src/arch
3184 * Error propagation has been improved, both in the protocol modules
3187 * The code for the RTXC architecture has been implemented, tested
3190 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3191 the Internet checksum modules.
3193 * Bugs related to porting between a 32-bit and a 16-bit architecture
3194 have been found and corrected.
3196 * The license has been changed slightly to conform more with the
3197 original BSD license, including the advertisement clause.
3199 (0.3.1) Changes since version 0.3
3201 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3202 RAM never returned the RAM when the pbuf was deallocated.
3204 * TCP congestion control, window updates and retransmissions did not
3205 work correctly. This has now been fixed.
3207 * Bugfixes in the API.
3209 (0.3) Changes since version 0.2
3211 * New and improved directory structure. All include files are now
3212 kept in a dedicated include/ directory.
3214 * The API now has proper error handling. A new function,
3215 netconn_err(), now returns an error code for the connection in
3218 * Improvements in the memory management subsystem. The system now
3219 keeps a pointer to the lowest free memory block. A new function,
3220 mem_malloc2() tries to allocate memory once, and if it fails tries
3221 to free some memory and retry the allocation.
3223 * Much testing has been done with limited memory
3224 configurations. lwIP now does a better job when overloaded.
3226 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3228 * Many bugfixes in the TCP code:
3230 - Fixed a bug in tcp_close().
3232 - The TCP receive window was incorrectly closed when out of
3233 sequence segments was received. This has been fixed.
3235 - Connections are now timed-out of the FIN-WAIT-2 state.
3237 - The initial congestion window could in some cases be too
3238 large. This has been fixed.
3240 - The retransmission queue could in some cases be screwed up. This
3243 - TCP RST flag now handled correctly.
3245 - Out of sequence data was in some cases never delivered to the
3246 application. This has been fixed.
3248 - Retransmitted segments now contain the correct acknowledgment
3249 number and advertised window.
3251 - TCP retransmission timeout backoffs are not correctly computed
3252 (ala BSD). After a number of retransmissions, TCP now gives up
3255 * TCP connections now are kept on three lists, one for active
3256 connections, one for listening connections, and one for
3257 connections that are in TIME-WAIT. This greatly speeds up the fast
3258 timeout processing for sending delayed ACKs.
3260 * TCP now provides proper feedback to the application when a
3261 connection has been successfully set up.
3263 * More comments have been added to the code. The code has also been
3264 somewhat cleaned up.
3266 (0.2) Initial public release.