5 * [Enter new changes just after this line - do not remove this line]
9 2011-12-17: Simon Goldschmidt
10 * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW)
13 2011-09-27: Simon Goldschmidt
14 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
15 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
17 2011-09-21: Simon Goldschmidt
18 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
19 send (TCP only, bug #33820)
21 2011-09-21: Simon Goldschmidt
22 * init.c: Converted runtime-sanity-checks into compile-time checks that can
23 be disabled (since runtime checks can often not be seen on embedded targets)
25 2011-09-11: Simon Goldschmidt
26 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
27 to get a clear separation of which functions an application or port may use
30 2011-09-11: Simon Goldschmidt
31 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
32 initial local TCP/UDP ports (so that different port ranges are used after
33 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
35 2011-09-03: Simon Goldschmidt
36 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
38 2011-08-24: Simon Goldschmidt
39 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
41 2011-07-26: Simon Goldschmidt
42 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
43 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
45 2011-07-21: Simon Goldschmidt (patch by hanhui)
46 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
47 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
48 Also added code to allow ip_forward() to forward non-broadcast packets to
49 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
51 2011-07-21: Simon Goldschmidt
52 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
53 ioctl/FIONREAD return the size of the next pending datagram.
55 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
56 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
59 2011-05-25: Simon Goldschmidt
60 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
61 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
62 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
63 code so that the code is more readable.
65 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
66 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
67 Ivan! (this is work in progress: we're just post release anyway :-)
69 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
70 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
76 2011-11-25: Simon Goldschmidt
77 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
78 tcp_active_pcbs in some cases
80 2011-11-23: Simon Goldschmidt
81 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
84 2011-11-22: Simon Goldschmidt
85 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
88 2011-10-28: Simon Goldschmidt
89 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
91 2011-10-23: Simon Goldschmidt
92 * mem.c: fixed bug #34429: possible memory corruption with
93 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
95 2011-10-18: Simon Goldschmidt
96 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
99 2011-10-18: Simon Goldschmidt
100 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
101 windows (bug #34176 select after non-blocking send times out)
103 2011-10-18: Simon Goldschmidt
104 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
105 consider netif->mtu, causes slow network
107 2011-10-18: Simon Goldschmidt
108 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
110 2011-10-18: Simon Goldschmidt
111 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
113 2011-10-17: Simon Goldschmidt
114 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
116 2011-10-13: Simon Goldschmidt
117 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
118 zero window is received) by starting the persist timer when a zero window is
119 received, not when we have more data queued for sending than fits into the
122 2011-10-13: Simon Goldschmidt
123 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
125 2011-10-13: Simon Goldschmidt
126 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
127 used and not all protocols are enabled
129 2011-10-12: Simon Goldschmidt
130 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
132 2011-10-09: Simon Goldschmidt
133 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
134 byte value when pcb->unacked != NULL
136 2011-10-09: Simon Goldschmidt
137 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
139 2011-09-27: Simon Goldschmidt
140 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
142 2011-09-27: Simon Goldschmidt
143 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
145 2011-09-27: Simon Goldschmidt
146 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
148 2011-09-24: Simon Goldschmidt
149 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
151 2011-09-23: Simon Goldschmidt
152 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
153 the last packet including FIN can lose data
155 2011-09-22: Simon Goldschmidt
156 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
159 2011-09-21: Simon Goldschmidt
160 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
163 2011-09-20: Simon Goldschmidt
164 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
166 2011-09-11: Simon Goldschmidt
167 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
170 2011-09-09: Simon Goldschmidt
171 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
174 2011-09-03: Simon Goldschmidt
175 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
176 is aggregated and sent to application
178 2011-09-01: Simon Goldschmidt
179 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
182 2011-09-01: Simon Goldschmidt
183 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
185 2011-08-24: Simon Goldschmidt
186 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
188 2011-08-24: Simon Goldschmidt
189 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
190 accept() on UDP connections
192 2011-08-24: Simon Goldschmidt
193 * sockets.h: fixed bug #34057 socklen_t should be a typedef
195 2011-08-24: Simon Goldschmidt
196 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
198 2011-08-24: Simon Goldschmidt
199 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
201 2011-08-24: Simon Goldschmidt
202 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
204 2011-08-22: Simon Goldschmidt
205 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
206 merely prevents nagle from not transmitting fast after closing.)
208 2011-07-22: Simon Goldschmidt
209 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
210 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
211 lwip_send() sends as much as possible for non-blocking sockets
213 2011-07-22: Simon Goldschmidt
214 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
215 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
216 at regular intervals from main level.
218 2011-07-21: Simon Goldschmidt
219 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
220 sending an ARP request when an ARP entry is used in the last minute before
223 2011-07-04: Simon Goldschmidt
224 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
226 2011-06-26: Simon Goldschmidt
227 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
228 updating its documentation only.
230 2011-06-26: Simon Goldschmidt
231 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
234 2011-06-26: Simon Goldschmidt
235 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
243 2011-03-27: Simon Goldschmidt
244 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
245 calculate it in tcp_zero_window_probe (the only place where it was used).
247 2010-11-21: Simon Goldschmidt
248 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
251 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
252 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
253 IP_MULTICAST_LOOP at socket- and raw-API level.
255 2010-06-16: Simon Goldschmidt
256 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
257 link-layer-addressed UDP traffic to be received while a netif is down (just
258 like DHCP during configuration)
260 2010-05-22: Simon Goldschmidt
261 * many many files: bug #27352: removed packing from ip_addr_t, the packed
262 version is now only used in protocol headers. Added global storage for
263 current src/dest IP address while in input functions.
265 2010-05-16: Simon Goldschmidt
266 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
267 calculation (and use them throughout the stack where applicable)
269 2010-05-16: Simon Goldschmidt
270 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
271 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
273 2010-05-16: Simon Goldschmidt
274 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
275 MEMP pool instead of the heap
277 2010-05-13: Simon Goldschmidt
278 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
279 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
280 packets to more than one pcb.
282 2010-05-02: Simon Goldschmidt
283 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
284 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
286 2010-04-30: Simon Goldschmidt
287 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
288 take a precalculated checksum, added pbuf_fill_chksum() to copy data
289 into a pbuf and at the same time calculating the checksum for that data
291 2010-04-29: Simon Goldschmidt
292 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
293 2-byte-aligned IP addresses and MAC addresses
295 2010-04-28: Patch by Bill Auerbach
296 * ip.c: Inline generating IP checksum to save a function call
298 2010-04-14: Simon Goldschmidt
299 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
300 tcpip_thread processes messages or timeouts to implement a watchdog.
302 2010-03-28: Simon Goldschmidt
303 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
304 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
306 2010-03-27: Simon Goldschmidt
307 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
308 etharp_query to prevent unnecessary function calls (inspired by
311 2010-03-20: Simon Goldschmidt
312 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
313 since the linker cannot do this automatically to save space.
315 2010-03-20: Simon Goldschmidt
316 * opt.h, etharp.c/.h: Added support for static ARP table entries
318 2010-03-14: Simon Goldschmidt
319 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
320 when creating TCP segments, not when (re-)transmitting them.
322 2010-03-07: Simon Goldschmidt
323 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
324 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
325 This should speed up receiving data on sockets as the select code in
326 event_callback is only executed when select is waiting.
328 2010-03-06: Simon Goldschmidt
329 * tcp_out.c: task #7013 (Create option to have all packets delivered to
330 netif->output in one piece): Always copy to try to create single pbufs
333 2010-03-06: Simon Goldschmidt
334 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
335 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
336 for tcp netconns to receive pbufs, not netbufs; use that function
339 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
340 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
341 Work on tcp_enqueue: Don't waste memory when chaining segments,
342 added option TCP_OVERSIZE to prevent creating many small pbufs when
343 calling tcp_write with many small blocks of data. Instead, pbufs are
344 allocated larger than needed and the space is used for later calls to
347 2010-02-21: Simon Goldschmidt
348 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
351 2010-02-21: Simon Goldschmidt
352 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
353 implementation of tcp to make API usage cleare to application programmers
355 2010-02-14: Simon Goldschmidt/Stephane Lesage
356 * ip_addr.h: Improved some defines working on ip addresses, added faster
357 macro to copy addresses that cannot be NULL
359 2010-02-13: Simon Goldschmidt
360 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
361 blocking send operation)
363 2010-02-12: Simon Goldschmidt
364 * sockets.c/.h: Added a minimal version of posix fctl() to have a
365 standardised way to set O_NONBLOCK for nonblocking sockets.
367 2010-02-12: Simon Goldschmidt
368 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
369 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
370 and dhcp work with user-allocated structs instead of callin mem_malloc
372 2010-02-12: Simon Goldschmidt/Jeff Barber
373 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
374 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
376 2010-02-12: Simon Goldschmidt
377 * sys layer: task #10139 (Prefer statically allocated memory): converted
378 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
379 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
380 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
381 to let sys.h use binary semaphores instead of mutexes - as before)
383 2010-02-09: Simon Goldschmidt (Simon Kallweit)
384 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
385 (Restart system timeout handling)
387 2010-02-09: Simon Goldschmidt
388 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
389 netif.c) - loopif does not have to be created by the port any more,
390 just define LWIP_HAVE_LOOPIF to 1.
392 2010-02-08: Simon Goldschmidt
393 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
394 inet_ntoa_r/ipaddr_ntoa_r
396 2010-02-08: Simon Goldschmidt
397 * netif.h: Added netif_s/get_igmp_mac_filter() macros
399 2010-02-05: Simon Goldschmidt
400 * netif.h: Added function-like macros to get/set the hostname on a netif
402 2010-02-04: Simon Goldschmidt
403 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
404 make changing the actual implementation behind the typedef easier.
406 2010-02-01: Simon Goldschmidt
407 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
408 for allocating memory when getaddrinfo() is called.
410 2010-01-31: Simon Goldschmidt
411 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
412 them once instead of parsing for every option. This also removes
413 the need for mem_malloc from dhcp_recv and makes it possible to
414 correctly retrieve the BOOTP file.
416 2010-01-30: simon Goldschmidt
417 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
420 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
421 * api.h, api_msg.c, sockets.c: Added except set support in select
424 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
425 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
426 Add non-blocking support for connect (partly from patch #6860),
427 plus many cleanups in socket & netconn API.
429 2010-01-27: Simon Goldschmidt
430 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
431 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
433 2010-01-26: Simon Goldschmidt
434 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
436 2010-01-14: Simon Goldschmidt
437 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
438 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
440 2010-01-13: Simon Goldschmidt
441 * mem.c: The heap now may be moved to user-defined memory by defining
442 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
443 (patch #6966 and bug #26133)
445 2010-01-10: Simon Goldschmidt (Bill Auerbach)
446 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
449 2010-01-10: Simon Goldschmidt
450 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
451 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
453 2009-12-31: Simon Goldschmidt
454 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
455 added timers.c/.h: Separated timer implementation from semaphore/mbox
456 implementation, moved timer implementation to timers.c/.h, timers are
457 now only called from tcpip_thread or by explicitly checking them.
460 2009-12-27: Simon Goldschmidt
461 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
462 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
467 2011-04-20: Simon Goldschmidt
468 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
470 2011-04-13: Simon Goldschmidt
471 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
472 using ports in the IANA private/dynamic range (49152 through 65535).
474 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
475 * etharp.h/.c: Fixed broken VLAN support.
477 2011-03-27: Simon Goldschmidt
478 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
479 pcbs) by checking if the pcb was bound (local_port != 0).
481 2011-03-27: Simon Goldschmidt
482 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
484 2011-03-27: Simon Goldschmidt
485 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
486 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
488 2011-03-27: Simon Goldschmidt
489 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
490 is present never times out) by starting retransmission timer before checking
493 2011-03-22: Simon Goldschmidt
494 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
495 calling sio_read_abort() if the file descriptor is valid.
497 2011-03-14: Simon Goldschmidt
498 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
499 more than once can render a socket useless) since it mainly involves changing
500 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
502 2011-03-13: Simon Goldschmidt
503 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
504 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
505 use EALRADY instead of -1
507 2011-03-13: Simon Goldschmidt
508 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
509 connection has been aborted by err_tcp (since this is not a normal closing
512 2011-03-13: Simon Goldschmidt
513 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
514 with pcb->state != CLOSED
516 2011-02-17: Simon Goldschmidt
517 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
520 2011-02-17: Simon Goldschmidt
521 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
523 2011-01-24: Simon Goldschmidt
524 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
526 2010-12-02: Simon Goldschmidt
527 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
529 2010-11-23: Simon Goldschmidt
530 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
531 LWIP_SO_RCVBUF and ioctl/FIONREAD.
533 2010-11-23: Simon Goldschmidt
534 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
535 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
537 2010-11-23: Simon Goldschmidt
538 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
539 refusing 'refused_data' again.
541 2010-11-22: Simon Goldschmidt
542 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
543 after a successful nonblocking connection.
545 2010-11-22: Simon Goldschmidt
546 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
547 must be sent link-local
549 2010-11-22: Simon Goldschmidt
550 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
553 2010-11-20: Simon Goldschmidt
554 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
556 2010-11-20: Simon Goldschmidt
557 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
558 resemble other stacks.
560 2010-11-20: Simon Goldschmidt
561 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
562 no-copy TCP writes will never succeed.
564 2010-11-20: Simon Goldschmidt
565 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
566 not match documentation: return ERR_ARG instead of ERR_VAL if not
567 initialized or wrong argument.
569 2010-10-20: Simon Goldschmidt
570 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
572 2010-10-05: Simon Goldschmidt
573 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
574 replugging the network cable after an AutoIP address was assigned.
576 2010-08-10: Simon Goldschmidt
577 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
579 2010-08-03: Simon Goldschmidt
580 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
582 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
583 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
584 endian architectures)
586 2010-07-28: Simon Goldschmidt
587 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
590 2010-07-27: Simon Goldschmidt
591 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
592 harm but never did anything
594 2010-07-21: Simon Goldschmidt
595 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
598 2010-07-16: Kieran Mansley
599 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
601 2010-07-10: Simon Goldschmidt
602 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
604 2010-06-30: Simon Goldschmidt
605 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
608 2010-06-28: Kieran Mansley
609 * timers.c remove unportable printing of C function pointers
611 2010-06-24: Simon Goldschmidt
612 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
613 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
615 2010-06-24: Simon Goldschmidt
616 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
617 implemented shutdown at socket level.
619 2010-06-21: Simon Goldschmidt
620 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
621 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
622 custom pbufs that reference other (original) pbufs. Additionally set
623 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
625 2010-06-15: Simon Goldschmidt
626 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
628 2010-06-14: Simon Goldschmidt
629 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
631 2010-06-12: Simon Goldschmidt
632 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
635 2010-05-17: Simon Goldschmidt
636 * netdb.c: Correctly NULL-terminate h_addr_list
638 2010-05-16: Simon Goldschmidt
639 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
640 "symbol already defined" i.e. when linking to winsock
642 2010-05-05: Simon Goldschmidt
643 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
646 2010-04-21: Simon Goldschmidt
647 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
650 2010-03-28: Luca Ceresoli
651 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
653 2010-03-27: Luca Ceresoli
654 * mib2.c: patch #7130: remove meaningless const qualifiers
656 2010-03-26: Simon Goldschmidt
657 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
659 2010-03-26: Simon Goldschmidt
660 * various files: Fixed compiling with different options disabled (TCP/UDP),
661 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
663 2010-03-25: Simon Goldschmidt
664 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
666 2010-03-25: Simon Goldschmidt
667 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
668 overrunning our rcv_wnd in ooseq case.
670 2010-03-22: Simon Goldschmidt
671 * tcp.c: tcp_listen() did not copy the pcb's prio.
673 2010-03-19: Simon Goldschmidt
674 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
676 2010-03-14: Simon Goldschmidt
677 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
678 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
679 and basing PBUF_LINK_HLEN on it.
681 2010-03-08: Simon Goldschmidt
682 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
683 when assiging routable address): when checking incoming packets and
684 aborting existing connection on address change, filter out link-local
687 2010-03-06: Simon Goldschmidt
688 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
690 2010-03-06: Simon Goldschmidt
691 * ipv4/ip.c: Don't try to forward link-local addresses
693 2010-03-06: Simon Goldschmidt
694 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
697 2010-03-05: Simon Goldschmidt
698 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
701 2010-03-05: Simon Goldschmidt
702 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
703 into multiple calls to tcp_write.
705 2010-02-21: Simon Goldschmidt
706 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
707 the implementation of DNS_USES_STATIC_BUF==1)
709 2010-02-20: Simon Goldschmidt
710 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
711 close() vs. shutdown(). Now the application does not get any more
712 recv callbacks after calling tcp_close(). Added tcp_shutdown().
714 2010-02-19: Simon Goldschmidt
715 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
716 confusion with realloc()
718 2010-02-15: Simon Goldschmidt/Stephane Lesage
719 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
722 2010-02-14: Simon Goldschmidt
723 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
724 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
725 admin-status of a netif are up
727 2010-02-14: Simon Goldschmidt
728 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
729 reception and is not really necessary
731 2010-02-14: Simon Goldschmidt
732 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
733 request was directed as us (RFC 826, Packet Reception), otherwise
734 only update existing entries; internalized some functions
736 2010-02-14: Simon Goldschmidt
737 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
738 disabled on netif used for PPPoE) by adding a new netif flag
739 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
740 device but prevents usage of ARP (so that ethernet_input can be used
743 2010-02-12: Simon Goldschmidt
744 * netif.c: netif_set_link_up/down: only do something if the link state
747 2010-02-12: Simon Goldschmidt/Stephane Lesage
748 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
751 2010-02-12: Simon Goldschmidt
752 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
754 2010-02-09: Simon Goldschmidt
755 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
756 (recv() makes receive window update for data that wasn't received by
759 2010-02-09: Simon Goldschmidt/Stephane Lesage
760 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
761 or any netconn_recv() error)
763 2010-02-09: Simon Goldschmidt
764 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
766 2010-02-09: Simon Goldschmidt
767 * netif.c: For loopback packets, adjust the stats- and snmp-counters
768 for the loopback netif.
770 2010-02-08: Simon Goldschmidt
771 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
772 since they are not used anywhere else.
774 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
775 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
776 (patch from bug #28798)
778 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
779 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
780 another bug when LWIP_RAND() returns zero.
782 2010-02-04: Simon Goldschmidt
783 * nearly every file: Use macros defined in ip_addr.h (some of them new)
784 to work with IP addresses (preparation for bug #27352 - Change ip_addr
785 from struct to typedef (u32_t) - and better code).
787 2010-01-31: Simon Goldschmidt
788 * netif.c: Don't call the link-callback from netif_set_up/down() since
789 this invalidly retriggers DHCP.
791 2010-01-29: Simon Goldschmidt
792 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
793 portability file inet.h and its contents from the stack: moved htonX-
794 functions to def.h (and the new def.c - they are not ipv4 dependent),
795 let inet.h depend on ip_addr.h and not the other way round.
796 This fixes bug #28732.
798 2010-01-28: Kieran Mansley
799 * tcp.c: Ensure ssthresh >= 2*MSS
801 2010-01-27: Simon Goldschmidt
802 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
803 callback can lead to accessing unallocated memory. As a consequence,
804 ERR_ABRT means the application has called tcp_abort()!
806 2010-01-25: Simon Goldschmidt
807 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
808 not implemented in SNMP): write-only or not-accessible are still
809 returned by getnext (though not by get)
811 2010-01-24: Simon Goldschmidt
812 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
813 not use reserved C/C++ keywords
815 2010-01-23: Simon Goldschmidt
816 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
819 2010-01-21: Simon Goldschmidt
820 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
821 if tcp_enqueue fails) both in raw- and netconn-API
823 2010-01-19: Simon Goldschmidt
824 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
826 2010-01-18: Iordan Neshev/Simon Goldschmidt
827 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
828 bugfix backports from 2.4.x.
830 2010-01-18: Simon Goldschmidt
831 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
833 2010-01-17: Simon Goldschmidt
834 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
835 task #10102: "netconn: clean up conn->err threading issues" by adding
836 error return value to struct api_msg_msg
838 2010-01-17: Simon Goldschmidt
839 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
840 to return err_t (bugs #27709 and #28087)
842 2010-01-14: Simon Goldschmidt
843 * ...: Use typedef for function prototypes throughout the stack.
845 2010-01-13: Simon Goldschmidt
846 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
847 window = 0) by correctly draining recvmbox/acceptmbox
849 2010-01-11: Simon Goldschmidt
850 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
851 erroneous callbacks) by copying the code from recent pppd
853 2010-01-10: Simon Goldschmidt
854 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
856 2010-01-10: Simon Goldschmidt
857 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
859 2010-01-08: Simon Goldschmidt
860 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
862 2010-01-08: Simon Goldschmidt
863 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
864 passed to dns_local_addhost() might be volatile
866 2010-01-07: Simon Goldschmidt
867 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
869 2010-01-06: Simon Goldschmidt
870 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
872 2009-12-31: Simon Goldschmidt
873 * many ppp files: Reorganised PPP source code from ucip structure to pppd
874 structure to easily compare our code against the pppd code (around v2.3.1)
876 2009-12-27: Simon Goldschmidt
877 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
885 2009-10-27 Simon Goldschmidt/Stephan Lesage
886 * netifapi.c/.h: Added netifapi_netif_set_addr()
888 2009-10-07 Simon Goldschmidt/Fabian Koch
889 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
890 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
892 2009-08-26 Simon Goldschmidt/Simon Kallweit
893 * slipif.c/.h: bug #26397: SLIP polling support
895 2009-08-25 Simon Goldschmidt
896 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
897 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
899 2009-08-25 Simon Goldschmidt
900 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
902 2009-08-24 Jakob Stoklund Olesen
903 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
904 to netif_set_link_up().
906 2009-08-23 Simon Goldschmidt
907 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
908 to a human-readable string.
912 2009-12-24: Kieran Mansley
913 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
916 2009-12-06: Simon Goldschmidt
917 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
918 be statically allocated (like in ucip)
920 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
921 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
923 2009-12-03: Simon Goldschmidt
924 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
925 could have non-zero length
927 2009-12-02: Simon Goldschmidt
928 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
929 tcp_input_pcb until after calling the pcb's callbacks
931 2009-11-29: Simon Goldschmidt
932 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
933 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
935 2009-11-29: Simon Goldschmidt
936 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
937 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
939 2009-11-26: Simon Goldschmidt
940 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
943 2009-11-26: Simon Goldschmidt
944 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
945 algorithm at PCB level
947 2009-11-22: Simon Goldschmidt
948 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
950 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
951 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
952 reusing time-wait pcb
954 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
955 * sockets.c: Fixed bug #28062: Data received directly after accepting
956 does not wake up select
958 2009-11-11: Simon Goldschmidt
959 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
961 2009-10-30: Simon Goldschmidt
962 * opt.h: Increased default value for TCP_MSS to 536, updated default
963 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
965 2009-10-28: Kieran Mansley
966 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
967 to follow algorithm from TCP/IP Illustrated
969 2009-10-27: Kieran Mansley
970 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
972 2009-10-25: Simon Goldschmidt
973 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
974 pcb->recv is NULL to keep rcv_wnd correct)
976 2009-10-25: Simon Goldschmidt
977 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
979 2009-10-23: Simon Goldschmidt (David Empson)
980 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
982 2009-10-21: Simon Goldschmidt
983 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
984 trailing 1 byte len (SYN/FIN)
986 2009-10-21: Simon Goldschmidt
987 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
989 2009-10-19: Simon Goldschmidt
990 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
991 conditional code to assert where applicable), check pbuf length before
992 testing for valid reply
994 2009-10-19: Simon Goldschmidt
995 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
996 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
998 2009-10-16: Simon Goldschmidt
999 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1000 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1003 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1004 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1006 2009-10-15: Simon Goldschmidt
1007 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1010 2009-10-15: Simon Goldschmidt
1011 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1012 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1013 of network byte order
1015 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1016 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1017 which are not consecutive when retransmitting unacked segments
1019 2009-10-09 Simon Goldschmidt
1020 * opt.h: Fixed default values of some stats to only be enabled if used
1021 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1023 2009-08-30 Simon Goldschmidt
1024 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1025 function" by checking for loopback before calling ip_frag
1027 2009-08-25 Simon Goldschmidt
1028 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1030 2009-08-23 Simon Goldschmidt
1031 * ppp.c: bug #27078: Possible memory leak in pppInit()
1033 2009-08-23 Simon Goldschmidt
1034 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1037 2009-08-23 Simon Goldschmidt
1038 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1039 Fixed wrong parenthesis, added check in init.c
1041 2009-08-23 Simon Goldschmidt
1042 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1044 2009-08-23 Simon Goldschmidt
1045 * many ppp files: bug #27267: Added include to string.h where needed
1047 2009-08-23 Simon Goldschmidt
1048 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1055 2009-05-10 Simon Goldschmidt
1056 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1057 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1058 one pbuf to help MACs that don't support scatter-gather DMA.
1060 2009-05-09 Simon Goldschmidt
1061 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1062 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1064 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1065 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1066 extended info about the currently received packet.
1068 2009-04-27 Simon Goldschmidt
1069 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1071 2009-04-25 Simon Goldschmidt
1072 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1073 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1075 2009-04-21 Simon Goldschmidt
1076 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1077 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1078 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1079 as an external function for lookup.
1081 2009-04-15 Simon Goldschmidt
1082 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1084 2009-03-31 Kieran Mansley
1085 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1086 TCP timestamp options, off by default. Rework tcp_enqueue() to
1087 take option flags rather than specified option data
1089 2009-02-18 Simon Goldschmidt
1090 * cc.h: Added printf formatter for size_t: SZT_F
1092 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1093 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1096 2009-02-12 Simon Goldschmidt
1097 * init.h: Added LWIP_VERSION to get the current version of the stack
1099 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1100 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1101 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1104 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1105 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1106 is only used by UDPLITE at present, so conditionalise it.
1108 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1109 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1110 "seed" address. This should reduce AUTOIP conflicts if
1111 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1113 2008-10-02 Jonathan Larmour and Rishi Khan
1114 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1117 2008-06-30 Simon Goldschmidt
1118 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1119 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1120 mem_free to run between mem_malloc iterations. Added illegal counter for
1123 2008-06-27 Simon Goldschmidt
1124 * stats.h/.c, some other files: patch #6483: stats module improvement:
1125 Added defines to display each module's statistic individually, added stats
1126 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1128 2008-06-17 Simon Goldschmidt
1129 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1130 (define LWIP_ERR_T in cc.h)
1132 2008-06-17 Simon Goldschmidt
1133 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1136 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1137 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1138 modified version of patch # 6370: Moved loopif code to netif.c so that
1139 loopback traffic is supported on all netifs (all local IPs).
1140 Added option to limit loopback packets for each netifs.
1144 2009-08-12 Kieran Mansley
1145 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1146 out of window or out of order properly
1148 2009-08-12 Kieran Mansley
1149 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1151 2009-07-28 Simon Goldschmidt
1152 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1154 2009-07-27 Kieran Mansley
1155 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1157 2009-07-09 Kieran Mansley
1158 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1159 recv_avail and don't increment counters until message successfully
1162 2009-06-25 Kieran Mansley
1163 * api_msg.c api.h: BUG26722: initialise netconn write variables
1166 2009-06-25 Kieran Mansley
1167 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1169 2009-06-25 Kieran Mansley
1170 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1171 simultaneous close behaviour, and make snd_nxt have the same meaning
1174 2009-05-12 Simon Goldschmidt
1175 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1176 arp_table / uses etharp_query" by adding etharp_gratuitous()
1178 2009-05-12 Simon Goldschmidt
1179 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1180 to the IP header (used by igmp_ip_output_if)
1182 2009-05-06 Simon Goldschmidt
1183 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1184 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1186 2009-05-05 Simon Goldschmidt
1187 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1190 2009-05-04 Simon Goldschmidt
1191 * init.c: snmp was not initialized in lwip_init()
1193 2009-05-04 Frédéric Bernon
1194 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1196 2009-05-03 Simon Goldschmidt
1197 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1198 (and unsent->next == NULL)
1200 2009-05-02 Simon Goldschmidt
1201 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1202 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1204 2009-05-02 Simon Goldschmidt
1205 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1207 2009-05-01 Simon Goldschmidt
1208 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1210 2009-05-01 Simon Goldschmidt
1211 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1213 2009-04-29 Frédéric Bernon
1214 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1215 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1216 of broadcast packets even when this option wasn't set. Port maintainers
1217 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1218 If you want this option also filter broadcast on recv operations, you also
1219 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1221 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1222 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1223 DHCP/AUTOIP cooperation
1225 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1226 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1227 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1228 right place in tcp_output and tcp_rexmit).
1230 2009-04-25 Simon Goldschmidt
1231 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1232 when debugging": memp_sizes contained the wrong sizes (including sanity
1233 regions); memp pools for MEM_USE_POOLS were too small
1235 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1236 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1237 behavior, with with ip address string not ended by a '\0', a space or a
1240 2009-04-19 Simon Goldschmidt
1241 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1242 pcb->err is called, not pcb->connected (with an error code).
1244 2009-04-19 Simon Goldschmidt
1245 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1246 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1248 2009-04-19 Simon Goldschmidt
1249 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1250 in the header pbuf, not the data pbuf)
1252 2009-04-18 Simon Goldschmidt
1253 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1255 2009-04-15 Simon Goldschmidt
1256 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1258 2009-04-15 Simon Goldschmidt
1259 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1261 2009-04-15 Simon Goldschmidt
1262 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1263 ip_hinted_output() (for smaller code mainly)
1265 2009-04-15 Simon Goldschmidt
1266 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1268 2009-04-15 Simon Goldschmidt
1269 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1270 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1271 is big enough in dhcp_start
1273 2009-04-15 Simon Goldschmidt
1274 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1276 2009-04-15 Simon Goldschmidt
1277 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1279 2009-04-15 Simon Goldschmidt
1280 * sockets.c: bug #26121: set_errno can be overridden
1282 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1283 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1286 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1287 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1290 2009-03-31 Kieran Mansley
1291 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1292 updates are calculated and sent (BUG20515)
1294 * tcp_in.c: cope with SYN packets received during established states,
1295 and retransmission of initial SYN.
1297 * tcp_out.c: set push bit correctly when tcp segments are merged
1299 2009-03-27 Kieran Mansley
1300 * tcp_out.c set window correctly on probes (correcting change made
1303 2009-03-26 Kieran Mansley
1304 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1305 connections where no reset required (bug #25622)
1307 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1310 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1311 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1312 too small depending on MEM_ALIGNMENT
1314 2009-02-16 Simon Goldschmidt
1315 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1316 converted size argument of netconn_write to 'size_t'
1318 2009-02-16 Simon Goldschmidt
1319 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1320 by moving accept callback function pointer to TCP_PCB_COMMON
1322 2009-02-12 Simon Goldschmidt
1323 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1326 2009-02-11 Simon Goldschmidt
1327 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1329 2009-02-11 Simon Goldschmidt
1330 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1331 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1333 2009-02-10 Simon Goldschmidt
1334 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1335 Accepts_pending is decrease on a corresponding listen pcb when a connection
1336 in state SYN_RCVD is close.
1338 2009-01-28 Jonathan Larmour
1339 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1342 2008-12-19 Simon Goldschmidt
1343 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1345 2008-12-10 Tamas Somogyi, Frédéric Bernon
1346 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1347 port uses deleted netbuf.
1349 2008-10-18 Simon Goldschmidt
1350 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1353 2008-10-15 Simon Goldschmidt
1354 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1355 by packing the struct ip_reass_helper.
1357 2008-10-03 David Woodhouse, Jonathan Larmour
1358 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1360 2008-10-02 Jonathan Larmour
1361 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1362 padding is included.
1364 2008-09-30 Jonathan Larmour
1365 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1366 assertion check that addrlen isn't NULL.
1368 2008-09-30 Jonathan Larmour
1369 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1371 2008-08-26 Simon Goldschmidt
1372 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1373 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1375 2008-08-14 Simon Goldschmidt
1376 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1377 tcp_close returns != ERR_OK)
1379 2008-07-08 Frédéric Bernon
1380 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1381 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1383 2008-06-24 Jonathan Larmour
1384 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1385 if tcp_seg_copy fails.
1387 2008-06-17 Simon Goldschmidt
1388 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1389 and created defines for swapping bytes and folding u32 to u16.
1391 2008-05-30 Kieran Mansley
1392 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1393 rather than rcv_ann_wnd when deciding if packets are in-window.
1394 Contributed by <arasmussen@consultant.datasys.swri.edu>
1396 2008-05-30 Kieran Mansley
1397 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1398 passing as function pointers when MEM_LIBC_MALLOC is defined.
1400 2008-05-09 Jonathan Larmour
1401 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1402 stop it being treated as a fatal error.
1404 2008-04-15 Simon Goldschmidt
1405 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1408 2008-03-27 Simon Goldschmidt
1409 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1410 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1411 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1412 or heap memory from interrupt context
1414 2008-03-26 Simon Goldschmidt
1415 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1416 host sent a zero mss as TCP option.
1423 2008-03-10 Jonathan Larmour
1424 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1425 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1427 2008-01-22 Frédéric Bernon
1428 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1429 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1431 2008-01-14 Frédéric Bernon
1432 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1433 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1434 tcp_recv callback (see rawapi.txt).
1436 2008-01-14 Frédéric Bernon, Marc Chaland
1437 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1439 2008-01-12 Frédéric Bernon
1440 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1441 netconn::sem per netconn::op_completed like suggested for the task #7490
1442 "Add return value to sys_mbox_post".
1444 2008-01-12 Frédéric Bernon
1445 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1446 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1447 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1449 2008-01-10 Frédéric Bernon
1450 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1451 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1452 "blocking" ("block" parameter = 1).
1454 2008-01-10 Frédéric Bernon
1455 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1456 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1457 "Add return value to sys_mbox_post".
1459 2008-01-05 Frédéric Bernon
1460 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1461 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1462 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1463 indicate the number of pointers query by the mailbox. There is three defines
1464 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1465 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1466 parameter in your implementation, but to ignore it to keep the previous behavior.
1467 The new sys_mbox_trypost function return a value to know if the mailbox is
1468 full or if the message is posted. Take a look to sys_arch.txt for more details.
1469 This new function is used in tcpip_input (so, can be called in an interrupt
1470 context since the function is not blocking), and in recv_udp and recv_raw.
1472 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1473 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1474 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1475 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1476 documentation in the rawapi.txt file.
1478 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1479 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1481 2007-12-31 Frédéric Bernon, Luca Ceresoli
1482 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1483 in autoip". The change in etharp_raw could be removed, since all calls to
1484 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1485 wrong in the future.
1487 2007-12-30 Frédéric Bernon, Tom Evans
1488 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1489 Filtering" reported by Tom Evans.
1491 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1492 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1493 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1494 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1495 keep accepting new connections.
1497 2007-12-13 Frédéric Bernon
1498 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1499 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1501 2007-12-12 Frédéric Bernon
1502 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1503 are the one which have ram usage.
1505 2007-12-05 Frédéric Bernon
1506 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1507 set of variables (=0) or a local one (=1). In this last case, your port should
1508 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1509 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1511 2007-12-03 Simon Goldschmidt
1512 * ip.c: ip_input: check if a packet is for inp first before checking all other
1513 netifs on netif_list (speeds up packet receiving in most cases)
1515 2007-11-30 Simon Goldschmidt
1516 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1517 UDP: move a (connected) pcb selected for input to the front of the list of
1518 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1521 2007-11-28 Simon Goldschmidt
1522 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1524 2007-11-25 Simon Goldschmidt
1525 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1528 2007-11-24 Simon Goldschmidt
1529 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1530 to the new file netdb.c; included lwip_getaddrinfo.
1532 2007-11-21 Simon Goldschmidt
1533 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1534 based on the MTU of the netif used to send. Enabled by default. Disable by
1535 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1537 2007-11-19 Frédéric Bernon
1538 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1539 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1540 copy dns payload to parse the response), return an error if there is no place
1541 for a new query, and fix some minor problems.
1543 2007-11-16 Simon Goldschmidt
1544 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1545 removed files: core/inet.c, core/inet6.c
1546 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1547 inet and chksum part; changed includes in all lwIP files as appropriate
1549 2007-11-16 Simon Goldschmidt
1550 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1551 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1552 (gethostbyname/gethostbyname_r).
1554 2007-11-15 Jim Pettinato, Frédéric Bernon
1555 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1556 requests with RAW api interface. Initialization is done in lwip_init() with
1557 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1558 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1559 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1560 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1561 list with points to improve.
1563 2007-11-06 Simon Goldschmidt
1564 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1565 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1566 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1568 2007-11-06 Simon Goldschmidt
1569 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1570 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1571 implementation from netconn api applications.
1573 2007-11-03 Frédéric Bernon
1574 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1575 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1576 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1577 it. This is a first release which have to be improve for TCP. Note it used the
1578 netconn::recv_avail which need to be more "thread-safe" (note there is already
1579 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1581 2007-11-01 Frédéric Bernon, Marc Chaland
1582 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1583 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1584 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1585 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1586 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1588 2007-10-24 Frédéric Bernon
1589 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1590 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1591 some code (like we have talk in "patch #5919 : Create compile switch to remove
1592 select code"), but it could be done later.
1594 2007-10-08 Simon Goldschmidt
1595 * many files: Changed initialization: many init functions are not needed any
1596 more since we now rely on the compiler initializing global and static
1599 2007-10-06 Simon Goldschmidt
1600 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1601 to enqueue the received pbufs so that multiple packets can be reassembled
1602 simultaneously and no static reassembly buffer is needed.
1604 2007-10-05 Simon Goldschmidt
1605 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1606 all netifs (or ports) can use it.
1608 2007-10-05 Frédéric Bernon
1609 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1610 common function to reduce a little bit the footprint (for all functions using
1611 only the "netif" parameter).
1613 2007-10-03 Frédéric Bernon
1614 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1615 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1616 a little bit the footprint (for all functions using only the "netif" parameter).
1618 2007-09-15 Frédéric Bernon
1619 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1620 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1621 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1622 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1624 2007-09-10 Frédéric Bernon
1625 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1626 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1627 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1628 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1629 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1630 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1631 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1632 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1633 when it's queried (any direct call to "sysuptime" is changed by a call to
1634 snmp_get_sysuptime).
1636 2007-09-09 Frédéric Bernon, Bill Florac
1637 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1638 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1639 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1640 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1641 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1642 the next query message to receive the matching multicast streams).
1644 2007-09-08 Frédéric Bernon
1645 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1646 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1647 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1648 Enable to access to these fields with LWIP_TCP=0.
1650 2007-09-05 Frédéric Bernon
1651 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1652 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1653 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1654 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1655 help to reduce footprint, and to reduce "visibility" on the Internet.
1657 2007-09-05 Frédéric Bernon, Bill Florac
1658 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1659 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1660 parameters have to be provided: a task name, and a task stack size. For this
1661 one, since it's platform dependant, you could define the best one for you in
1662 your lwipopts.h. For port maintainers, you can just add these new parameters
1663 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1666 2007-09-05 Frédéric Bernon
1667 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1668 inside init.c for task #7142 "Sanity check user-configurable values".
1670 2007-09-04 Frédéric Bernon, Bill Florac
1671 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1672 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1673 value). It will avoid potential fragmentation problems, use a counter to know
1674 how many times a group is used on an netif, and free it when all applications
1675 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1676 check if LWIP_IGMP!=0).
1678 2007-09-03 Frédéric Bernon
1679 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1680 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1681 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1682 and/or the "interface" field (for netconn layer), for join/leave operations.
1683 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1684 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1686 2007-08-30 Frédéric Bernon
1687 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1688 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1689 with other API (application based on raw API, or future "socket2" API). Ports
1690 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1692 2007-08-30 Frédéric Bernon, Jonathan Larmour
1693 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1694 user-configurable values".
1696 2007-08-29 Frédéric Bernon
1697 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1698 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1699 spirit than the others modules. Modify some IGMP debug traces.
1701 2007-08-29 Frédéric Bernon
1702 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1703 Add lwip_init function to regroup all modules initializations, and to provide
1704 a place to add code for task #7142 "Sanity check user-configurable values".
1705 Ports maintainers should remove direct initializations calls from their code,
1706 and add init.c in their makefiles. Note that lwip_init() function is called
1707 inside tcpip_init, but can also be used by raw api users since all calls are
1708 disabled when matching options are disabled. Also note that their is new options
1709 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1711 2007-08-26 Marc Boucher
1712 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1713 since they can under certain circumstances be called with an invalid conn
1714 pointer after the connection has been closed (and conn has been freed).
1716 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1717 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1718 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1720 2007-08-22 Frédéric Bernon
1721 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1722 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1724 2007-08-22 Frédéric Bernon
1725 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1726 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1727 name is tcpip_input (we keep the name of 1.2.0 function).
1729 2007-08-17 Jared Grubb
1730 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1731 settings into new memp_std.h and optional user file lwippools.h. This adds
1732 more dynamic mempools, and allows the user to create an arbitrary number of
1733 mempools for mem_malloc.
1735 2007-08-16 Marc Boucher
1736 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1737 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1738 close the connection.
1740 2007-08-16 Marc Boucher
1741 * sockets.c: lwip_accept(): check netconn_peer() error return.
1743 2007-08-16 Marc Boucher
1744 * mem.c, mem.h: Added mem_calloc().
1746 2007-08-16 Marc Boucher
1747 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1748 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1749 and starving other message types.
1750 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1752 2007-08-16 Marc Boucher
1753 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1754 type and flgs (later renamed to flags).
1755 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1756 Improved lwip_recvfrom(). TCP push now propagated.
1758 2007-08-16 Marc Boucher
1759 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1762 2007-08-16 Marc Boucher
1763 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1764 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1765 Added PPPoE support and various PPP improvements.
1767 2007-07-25 Simon Goldschmidt
1768 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1769 making netbuf_copy_partial use this function.
1771 2007-07-25 Simon Goldschmidt
1772 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1773 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1776 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1777 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1778 a link callback in the netif struct, and functions to handle it. Be carefull
1779 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1780 if you want to be sure to be compatible with future changes...
1782 2007-06-30 Frédéric Bernon
1783 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1785 2007-06-21 Simon Goldschmidt
1786 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1787 LWIP_AUTOIP =0 and =1 to remove redundant code.
1789 2007-06-21 Simon Goldschmidt
1790 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1791 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1792 heap. This both prevents memory fragmentation and gives a higher speed
1793 at the cost of more memory consumption. Turned off by default.
1795 2007-06-21 Simon Goldschmidt
1796 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1797 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1798 int to be able to send a bigger buffer than 64K with one time (mainly
1799 used from lwip_send).
1801 2007-06-21 Simon Goldschmidt
1802 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1803 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1805 2007-06-21 Simon Goldschmidt
1806 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1807 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1808 changes on low memory or empty send-buffer.
1810 2007-06-18 Simon Goldschmidt
1811 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1812 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1813 used for ethernet and struct eth_addr already had a defined length of 6).
1815 2007-06-17 Simon Goldschmidt
1816 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1817 to disable UDP checksum generation on transmit.
1819 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1820 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1821 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1822 this macro to check "conn" parameter in api_msg.c functions.
1824 2007-06-11 Simon Goldschmidt
1825 * sockets.c, sockets.h: Added UDP lite support for sockets
1827 2007-06-10 Simon Goldschmidt
1828 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1829 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1832 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1833 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1834 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1835 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1836 (see TODO mark in the source code).
1838 2007-06-09 Simon Goldschmidt
1839 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1840 etharp_output() to match netif->output so etharp_output() can be used
1841 directly as netif->output to save one function call.
1843 2007-06-08 Simon Goldschmidt
1844 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1845 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1846 added initialization of those to ethernetif, slipif and loopif.
1848 2007-05-18 Simon Goldschmidt
1849 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1850 (defaulting to off for now) that can be set to 0 to send fragmented
1851 packets by passing PBUF_REFs down the stack.
1853 2007-05-23 Frédéric Bernon
1854 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1855 connections, such present in patch #5959.
1857 2007-05-23 Frédéric Bernon
1858 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1859 code in only one part...
1861 2007-05-18 Simon Goldschmidt
1862 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1863 elements to overflow. This is achieved by adding some bytes before and after
1864 each pool element (increasing their size, of course), filling them with a
1865 prominent value and checking them on freeing the element.
1866 Set it to 2 to also check every element in every pool each time memp_malloc()
1867 or memp_free() is called (slower but more helpful).
1869 2007-05-10 Simon Goldschmidt
1870 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1871 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1874 2007-05-11 Frédéric Bernon
1875 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1876 Include a function pointer instead of a table index in the message to reduce
1877 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1878 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1880 2007-05-10 Simon Goldschmidt
1881 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1882 \ extern "C" {' in all header files. Now you can write your application using
1883 the lwIP stack in C++ and simply #include the core files. Note I have left
1884 out the netif/ppp/*h header files for now, since I don't know which files are
1885 included by applications and which are for internal use only.
1887 2007-05-09 Simon Goldschmidt
1888 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1889 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1890 situations where some compilers might inline the copy and save a function
1891 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1893 2007-05-08 Simon Goldschmidt
1894 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1895 to be overriden in case the C-library malloc implementation is not protected
1896 against concurrent access.
1898 2007-05-04 Simon Goldschmidt (Atte Kojo)
1899 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1900 multiple packets to the same host.
1902 2007-05-04 Frédéric Bernon, Jonathan Larmour
1903 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1904 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1905 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1906 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1907 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1908 these fields are now renamed "addr" & "port".
1910 2007-04-11 Jonathan Larmour
1911 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1912 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1913 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1914 by the port in sys_arch.h if desired.
1916 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1917 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1918 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1919 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1921 2007-04-05 Frédéric Bernon
1922 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1924 2007-04-04 Simon Goldschmidt
1925 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1926 use this for and architecture-independent form to tell the compiler you intentionally
1927 are not using this variable. Can be overriden in cc.h.
1929 2007-03-28 Frédéric Bernon
1930 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1931 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1932 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1933 It will be used by DHCP to register a client hostname, but can also be use when you call
1936 2007-03-28 Frédéric Bernon
1937 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1938 initialize a network interface's flag with. It tell this interface is an ethernet
1939 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1940 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1942 2007-03-26 Frédéric Bernon, Jonathan Larmour
1943 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1944 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1945 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1946 is done in tcpip_init function.
1948 2007-03-22 Frédéric Bernon
1949 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1950 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1951 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1952 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1953 but never used. Fix msg_in.c with the correct #if test for a stat display.
1955 2007-03-21 Kieran Mansley
1956 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1957 Provides callback on netif up/down state change.
1959 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1960 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1961 ip.c, netif.h, tcpip.c, opt.h:
1962 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1963 filter per all network interfaces. Declare a new function in netif to enable to
1964 control the MAC filter (to reduce lwIP traffic processing).
1966 2007-03-11 Frédéric Bernon
1967 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1968 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1969 unless you know what you're doing (default are RFC1122 compliant). Note
1970 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1972 2007-03-08 Frédéric Bernon
1973 * tcp.h: Keepalive values can be configured at compile time, but don't change
1974 this unless you know what you're doing (default are RFC1122 compliant).
1976 2007-03-08 Frédéric Bernon
1977 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1978 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1979 on UDP sockets/netconn.
1981 2007-03-08 Simon Goldschmidt
1982 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1984 2007-03-06 Frédéric Bernon
1985 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1986 Implement SO_RCVTIMEO on UDP sockets/netconn.
1988 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1989 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1990 on the stack and remove the API msg type from memp
1992 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1993 * sockets.h, sockets.c: Move socket initialization to new
1994 lwip_socket_init() function.
1995 NOTE: this changes the API with ports. Ports will have to be
1996 updated to call lwip_socket_init() now.
1998 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1999 * api_lib.c: Use memcpy in netbuf_copy_partial.
2004 2008-03-17 Frédéric Bernon, Ed Kerekes
2005 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2006 some problems to fill the IP header on some targets, use now the
2007 ip.h macros to do it).
2009 2008-03-13 Frédéric Bernon
2010 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2011 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2012 TCP connection caused a crash. Note that using (lwip_)recvfrom
2013 like this is a bit slow and that using (lwip)getpeername is the
2014 good lwip way to do it (so, using recv is faster on tcp sockets).
2016 2008-03-12 Frédéric Bernon, Jonathan Larmour
2017 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2018 recv_raw() does not consume data", and the ping sample (with
2019 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2020 returned the IP payload, without the IP header).
2022 2008-03-04 Jonathan Larmour
2023 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2024 and/or warnings on some systems where mem_size_t and size_t differ.
2025 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2027 2008-03-04 Kieran Mansley (contributions by others)
2028 * Numerous small compiler error/warning fixes from contributions to
2029 mailing list after 1.3.0 release candidate made.
2031 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2032 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2034 2008-01-15 Kieran Mansley
2035 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2036 prevented from sending by a small send window, not just a zero
2039 2008-01-09 Jonathan Larmour
2040 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2041 conflict with Linux system headers.
2043 2008-01-06 Jonathan Larmour
2044 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2045 address entirely on receiving a DHCPNAK, and restarting discovery.
2047 2007-12-21 Simon Goldschmidt
2048 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2049 is not protected" by using new macros for interlocked access to modify/test
2050 netconn->recv_avail.
2052 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2053 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2055 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2056 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2057 of silly window avoidance and prevent lwIP from shrinking the window)
2059 2007-12-04 Simon Goldschmidt
2060 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2061 data packet was lost): add assert that all segment lists are empty in
2062 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2063 state from LAST_ACK in tcp_process
2065 2007-12-02 Simon Goldschmidt
2066 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2067 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2068 has to be set to 0 in lwipopts.h
2070 2007-12-02 Simon Goldschmidt
2071 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2072 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2073 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2074 This is a fix for thread-safety and allocates all items needed for a netconn
2075 when the netconn is created.
2077 2007-11-30 Simon Goldschmidt
2078 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2079 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2080 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2081 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2083 2007-11-27 Simon Goldschmidt
2084 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2085 letting ip_route only use netifs that are up.
2087 2007-11-27 Simon Goldschmidt
2088 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2089 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2090 sockets block most operations once they have seen a fatal error.
2092 2007-11-27 Simon Goldschmidt
2093 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2094 netif to send as an argument (to be able to send on netifs that are down).
2096 2007-11-26 Simon Goldschmidt
2097 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2100 2007-11-21 Simon Goldschmidt
2101 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2102 Fixed the nagle algorithm; nagle now also works for all raw API applications
2103 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2105 2007-11-12 Frédéric Bernon
2106 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2107 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2108 context in do_getaddr.
2110 2007-11-10 Simon Goldschmidt
2111 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2112 happen any time). Now the packet simply isn't enqueued when out of memory.
2114 2007-11-01 Simon Goldschmidt
2115 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2116 TCP_MSS if that is smaller) as long as no MSS option is received from the
2119 2007-11-01 Simon Goldschmidt
2120 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2121 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2122 sending our configured TCP_MSS instead of the one received).
2124 2007-11-01 Simon Goldschmidt
2125 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2126 calculated based on the configured TCP_MSS, not on the MSS option received
2129 2007-10-09 Simon Goldschmidt
2130 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2131 short and also was generated wrong if checksum coverage != tot_len;
2132 receive: checksum was calculated wrong if checksum coverage != tot_len
2134 2007-10-08 Simon Goldschmidt
2135 * mem.c: lfree was not updated in mem_realloc!
2137 2007-10-07 Frédéric Bernon
2138 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2139 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2140 this change cause an API breakage for netconn_addr, since a parameter
2141 type change. Any compiler should cause an error without any changes in
2142 yours netconn_peer calls (so, it can't be a "silent change"). It also
2143 reduce a little bit the footprint for socket layer (lwip_getpeername &
2144 lwip_getsockname use now a common lwip_getaddrname function since
2145 netconn_peer & netconn_addr have the same parameters).
2147 2007-09-20 Simon Goldschmidt
2148 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2149 by checking tcp_tw_pcbs also
2151 2007-09-19 Simon Goldschmidt
2152 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2154 2007-09-15 Mike Kleshov
2155 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2157 2007-09-06 Frédéric Bernon
2158 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2159 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2160 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2161 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2163 2007-08-30 Frédéric Bernon
2164 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2165 and fix some coding style.
2167 2007-08-28 Frédéric Bernon
2168 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2169 kind of packets. These packets are considered like Ethernet packets (payload
2170 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2171 are considered like IP packets (payload pointing to iphdr).
2173 2007-08-27 Frédéric Bernon
2174 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2175 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2176 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2178 2007-08-24 Kieran Mansley
2179 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2180 compiler (Paradigm C++)
2182 2007-08-09 Frédéric Bernon, Bill Florac
2183 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2184 Introduce IGMP_STATS to centralize statistics management.
2186 2007-08-09 Frédéric Bernon, Bill Florac
2187 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2188 packet on a udp pcb binded on an netif's IP address, and not on "any".
2190 2007-08-09 Frédéric Bernon, Bill Florac
2191 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2192 This is mainly on using lookup/lookfor, and some coding styles...
2194 2007-07-26 Frédéric Bernon (and "thedoctor")
2195 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2197 2007-07-25 Simon Goldschmidt
2198 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2199 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2200 (tcp_output is called again later from tcp timers).
2202 2007-07-25 Simon Goldschmidt
2203 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2204 copy_from_pbuf, which illegally modified the given pbuf.
2206 2007-07-25 Simon Goldschmidt
2207 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2208 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2210 2007-07-24 Simon Goldschmidt
2211 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2212 correct state (must be CLOSED).
2214 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2215 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2216 allocation. It now returns NULL.
2218 2007-07-13 Frédéric Bernon
2219 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2222 2007-07-13 Frédéric Bernon
2223 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2224 because current code doesn't follow rawapi.txt documentation.
2226 2007-07-13 Kieran Mansley
2227 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2228 out of sequence processing of received packets
2230 2007-07-03 Simon Goldschmidt
2231 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2232 assumption is made that this pbuf is in one piece (i.e. not chained). These
2233 assumptions clash with the possibility of converting to fully pool-based
2234 pbuf implementations, where PBUF_RAM pbufs might be chained.
2236 2007-07-03 Simon Goldschmidt
2237 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2238 when closing tcp netconns: removed conn->sem, less context switches when
2239 closing, both netconn_close and netconn_delete should safely close tcp
2242 2007-07-02 Simon Goldschmidt
2243 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2244 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2245 to cache ARP table indices with each pcb instead of single-entry cache for
2248 2007-07-02 Simon Goldschmidt
2249 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2250 warnings when assigning to smaller types.
2252 2007-06-28 Simon Goldschmidt
2253 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2255 2007-06-28 Simon Goldschmidt
2256 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2257 a segment contained chained pbufs)
2259 2007-06-28 Frédéric Bernon
2260 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2261 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2262 possible to define this macro in your own lwipopts.h to always use C library's
2263 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2265 2007-06-28 Frédéric Bernon
2266 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2267 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2268 in api_lib/api_msg (use pointers and not type with table, etc...)
2270 2007-06-26 Simon Goldschmidt
2271 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2273 2007-06-25 Simon Goldschmidt
2274 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2275 for udp packets with no matching pcb.
2277 2007-06-25 Simon Goldschmidt
2278 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2279 could get udp input packets if the remote side matched.
2281 2007-06-13 Simon Goldschmidt
2282 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2283 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2285 2007-06-13 Simon Goldschmidt
2286 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2287 -> netconn_new_..() does not allocate a new connection for unsupported
2290 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2291 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2292 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2294 2007-06-13 Frédéric Bernon, Matthias Weisser
2295 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2296 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2297 some macro names collision with some OS macros.
2299 2007-06-11 Simon Goldschmidt
2300 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2301 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2302 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2305 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2306 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2307 where TCP flags wasn't initialized in tcp_keepalive.
2309 2007-06-03 Simon Goldschmidt
2310 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2311 registered, p->payload was modified without modifying p->len if sending
2312 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2314 2007-06-03 Simon Goldschmidt
2315 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2316 re-used the input pbuf even if that didn't have enough space to include the
2317 link headers. Now the space is tested and a new pbuf is allocated for the
2318 echo response packet if the echo request pbuf isn't big enough.
2320 2007-06-01 Simon Goldschmidt
2321 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2323 2007-05-23 Frédéric Bernon
2324 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2325 allocated by do_listen if success) and netconn_accept errors handling. In
2326 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2327 by ASSERT, except for netconn_delete.
2329 2007-05-23 Frédéric Bernon
2330 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2331 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2332 directly close the recvmbox).
2334 2007-05-22 Simon Goldschmidt
2335 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2336 bound but unconnected (and non-listening) tcp_pcbs.
2338 2007-05-22 Frédéric Bernon
2339 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2340 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2341 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2342 like "sys_timeout" in their application threads.
2344 2007-05-22 Frédéric Bernon
2345 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2346 which parameters are used by which do_xxx function, and to avoid "misusing"
2347 parameters (patch #5938).
2349 2007-05-22 Simon Goldschmidt
2350 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2351 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2352 is only 8 bits wide. This affects the api, as there, the protocol was
2355 2007-05-18 Simon Goldschmidt
2356 * memp.c: addition to patch #5913: smaller pointer was returned but
2357 memp_memory was the same size -> did not save memory.
2359 2007-05-16 Simon Goldschmidt
2360 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2363 2007-05-16 Simon Goldschmidt
2364 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2365 as the one of the netif used for sending to prevent sending from old
2366 addresses after a netif address gets changed (partly fixes bug #3168).
2368 2007-05-16 Frédéric Bernon
2369 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2370 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2371 tcpip_init) because we have to be sure that network interfaces are already
2372 added (mac filter is updated only in igmp_init for the moment).
2374 2007-05-16 Simon Goldschmidt
2375 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2376 into sys_arch_sem_wait calls to prevent timers from running while waiting
2377 for the heap. This fixes bug #19167.
2379 2007-05-13 Simon Goldschmidt
2380 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2381 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2384 2007-05-07 Simon Goldschmidt
2385 * mem.c: Another attempt to fix bug #17922.
2387 2007-05-04 Simon Goldschmidt
2388 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2389 implementation so that it can be reused (don't allocate the target
2390 pbuf inside pbuf_copy()).
2392 2007-05-04 Simon Goldschmidt
2393 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2394 to save a little RAM (next pointer of memp is not used while not in pool).
2397 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2400 2007-04-23 Simon Goldschmidt
2401 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2402 in NULL reference for incoming TCP packets". Loopif has to be configured
2403 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2404 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2405 putting packets on a list that is fed to the stack by calling loopif_poll()
2406 (single-thread / NO_SYS / polling environment where e.g.
2407 netif->input() = ip_input).
2409 2007-04-17 Jonathan Larmour
2410 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2411 the difference between two u16_t's.
2412 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2413 MEMP_NUM_NETCONN in sockets.c right now.
2415 2007-04-12 Jonathan Larmour
2416 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2418 2007-04-12 Kieran Mansley
2419 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2420 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2422 2007-04-11 Simon Goldschmidt
2423 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2424 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2425 pbuf.c: removed functions no needed any more (by etharp).
2427 2007-04-11 Kieran Mansley
2428 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2429 "Constant is long" warnings with 16bit compilers. Contributed by
2430 avatar@mmlab.cse.yzu.edu.tw
2432 2007-04-05 Frédéric Bernon, Jonathan Larmour
2433 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2434 the mailbox is active". Now, the post is only done during a connect, and do_send,
2435 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2437 2007-04-03 Frédéric Bernon
2438 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2439 packets. See patch #5834.
2441 2007-03-30 Frédéric Bernon
2442 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2443 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2445 2007-03-30 Frédéric Bernon
2446 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2447 others environment defines (these were too "generic").
2449 2007-03-28 Frédéric Bernon
2450 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2451 result and can cause a crash. lwip_send now check netbuf_ref result.
2453 2007-03-28 Simon Goldschmidt
2454 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2455 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2456 defined. This is the way it should have been already (looking at
2459 2007-03-28 Kieran Mansley
2460 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2461 IP and TCP headers *and* physical link headers
2463 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2464 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2465 to send some garbage. It is not a definitive solution, but the patch does solve
2466 the problem for most cases.
2468 2007-03-22 Frédéric Bernon
2469 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2471 2007-03-22 Frédéric Bernon
2472 * api_lib.c: somes resources couldn't be freed if there was errors during
2473 netconn_new_with_proto_and_callback.
2475 2007-03-22 Frédéric Bernon
2476 * ethernetif.c: update netif->input calls to check return value. In older ports,
2477 it's a good idea to upgrade them, even if before, there could be another problem
2478 (access to an uninitialized mailbox).
2480 2007-03-21 Simon Goldschmidt
2481 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2482 by casting to unsigned).
2484 2007-03-21 Frédéric Bernon
2485 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2486 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2487 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2488 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2489 faster and more reliable communication between api_lib and tcpip.
2491 2007-03-21 Frédéric Bernon
2492 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2494 2007-03-21 Frédéric Bernon
2495 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2497 2007-03-21 Kieran Mansley
2498 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2501 2007-03-21 Kieran Mansley
2502 * Fix all uses of pbuf_header to check the return value. In some
2503 cases just assert if it fails as I'm not sure how to fix them, but
2504 this is no worse than before when they would carry on regardless
2507 2007-03-21 Kieran Mansley
2508 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2509 comment out missing header include in icmp.c
2511 2007-03-20 Frédéric Bernon
2512 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2513 synchronized with memp.h.
2515 2007-03-20 Frédéric Bernon
2516 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2517 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2518 network interfaces. Also fix a compiler warning.
2520 2007-03-20 Kieran Mansley
2521 * udp.c: Only try and use pbuf_header() to make space for headers if
2522 not a ROM or REF pbuf.
2524 2007-03-19 Frédéric Bernon
2525 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2528 2007-03-19 Frédéric Bernon
2529 * Remove unimplemented "memp_realloc" function from memp.h.
2531 2007-03-11 Simon Goldschmidt
2532 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2535 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2536 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2537 (missing `const' qualifier in socket functions), to get more compatible to
2538 standard POSIX sockets.
2540 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2541 * sockets.c: Add asserts inside bind, connect and sendto to check input
2542 parameters. Remove excessive set_errno() calls after get_socket(), because
2543 errno is set inside of get_socket(). Move last sock_set_errno() inside
2546 2007-03-09 Simon Goldschmidt
2547 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2548 was allocated too small.
2550 2007-03-06 Simon Goldschmidt
2551 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2552 the stack from concurrent access.
2554 2007-03-06 Frédéric Bernon, Dmitry Potapov
2555 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2556 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2558 2007-03-06 Simon Goldschmidt
2559 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2560 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2562 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2563 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2564 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2565 Allow to do ARP processing for incoming packets inside tcpip_thread
2566 (protecting ARP layer against concurrent access). You can also disable
2567 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2568 Older ports have to use tcpip_ethinput.
2570 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2571 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2572 from pointer target type"
2574 2007-03-05 Frédéric Bernon
2575 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2576 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2578 2007-03-04 Frédéric Bernon
2579 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2582 2007-03-04 Frédéric Bernon
2583 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2585 The api_msg struct stay on the stack (not moved to netconn struct).
2587 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2588 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2589 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2590 Also fixed cast warning in pbuf_alloc()
2592 2007-03-04 Simon Goldschmidt
2593 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2594 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2596 2007-03-03 Frédéric Bernon
2597 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2598 It is static, and never used in udp.c except udp_init().
2600 2007-03-02 Simon Goldschmidt
2601 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2602 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2603 initialized before tcpip_thread is running (e.g. before OS is started)
2605 2007-03-02 Frédéric Bernon
2606 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2609 2007-02-28 Kieran Mansley
2610 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2611 outside the region of the pbuf by pbuf_header()
2613 2007-02-28 Kieran Mansley
2614 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2615 when supplied timeout is also non-zero
2619 2006-12-05 Leon Woestenberg
2620 * CHANGELOG: Mention STABLE-1.2.0 release.
2624 2006-12-01 Christiaan Simons
2625 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2626 Note this is a workaround. Currently I have no other options left.
2628 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2629 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2630 to include/lwip/opt.h.
2631 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2632 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2633 * opt.h: Add above new options.
2635 2006-08-18 Christiaan Simons
2636 * tcp_{in,out}.c: added SNMP counters.
2637 * ipv4/ip.c: added SNMP counters.
2638 * ipv4/ip_frag.c: added SNMP counters.
2640 2006-08-08 Christiaan Simons
2641 * etharp.{c,h}: added etharp_find_addr() to read
2642 (stable) ethernet/IP address pair from ARP table
2644 2006-07-14 Christiaan Simons
2645 * mib_structs.c: added
2646 * include/lwip/snmp_structs.h: added
2647 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2649 2006-07-06 Christiaan Simons
2650 * snmp/asn1_{enc,dec}.c added
2652 * snmp/msg_{in,out}.c added
2653 * include/lwip/snmp_asn1.h added
2654 * include/lwip/snmp_msg.h added
2655 * doc/snmp_agent.txt added
2657 2006-03-29 Christiaan Simons
2658 * inet.c, inet.h: Added platform byteswap support.
2659 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2660 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2664 2006-11-30 Christiaan Simons
2665 * dhcp.c: Fixed false triggers of request_timeout.
2667 2006-11-28 Christiaan Simons
2668 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2670 2006-10-11 Christiaan Simons
2671 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2672 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2673 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2674 identifier from 170 to 136 (bug #17574).
2676 2006-10-10 Christiaan Simons
2677 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2679 2006-08-17 Christiaan Simons
2680 * udp.c: Fixed bug #17200, added check for broadcast
2681 destinations for PCBs bound to a unicast address.
2683 2006-08-07 Christiaan Simons
2684 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2686 2006-06-27 Christiaan Simons
2687 * api_msg.c: Applied patch for cold case (bug #11135).
2688 In accept_function() ensure newconn->callback is always initialized.
2690 2006-06-15 Christiaan Simons
2691 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2692 facilitate printing of mem_size_t and u16_t statistics.
2694 2006-06-14 Christiaan Simons
2695 * api_msg.c: Applied patch #5146 to handle allocation failures
2696 in accept() by Kevin Lawson.
2698 2006-05-26 Christiaan Simons
2699 * api_lib.c: Removed conn->sem creation and destruction
2700 from netconn_write() and added sys_sem_new to netconn_new_*.
2704 2006-03-03 Christiaan Simons
2705 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2706 access and added pbuf_alloc() return value checks.
2708 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2709 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2710 now handled by the checksum routine properly.
2712 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2713 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2714 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2716 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2717 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2718 submitted by Mitrani Hiroshi.
2720 2005-12-15 Christiaan Simons
2721 * inet.c: Disabled the added summing routine to preserve code space.
2723 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2724 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2725 Added Curt McDowell's optimized checksumming routine for future
2726 inclusion. Need to create test case for unaliged, aligned, odd,
2727 even length combination of cases on various endianess machines.
2729 2005-12-09 Christiaan Simons
2730 * inet.c: Rewrote standard checksum routine in proper portable C.
2732 2005-11-25 Christiaan Simons
2733 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2734 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2735 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2737 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2738 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2739 routine by Peter Jolasson.
2740 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2742 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2743 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2744 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2746 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2747 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2749 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2750 * udp.c: UDP pcb->recv() was called even when it was NULL.
2754 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2755 * etharp.*: Disabled multiple packets on the ARP queue.
2756 This clashes with TCP queueing.
2758 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2759 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2760 Halved the ARP period, doubled the period counts.
2761 ETHARP_MAX_PENDING now should be at least 2. This prevents
2762 the counter from reaching 0 right away (which would allow
2763 too little time for ARP responses to be received).
2765 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2766 * dhcp.c: Decline messages were not multicast but unicast.
2767 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2768 Do not try hard to insert arbitrary packet's source address,
2769 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2770 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2771 querying an address will see it appear in the cache (DHCP could
2772 suffer from this when a server invalidly gave an in-use address.)
2773 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2774 comparing network addresses (identifiers), not the network masks
2776 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2777 IP address actually belongs to the network of the given interface.
2779 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2780 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2784 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2785 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2786 even if one is already pending, if the rcv_wnd is above a threshold
2787 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2788 delayed ACK in order to open the window if the stack is only receiving data.
2790 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2791 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2793 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2794 * etharp.c: Make sure the first pbuf queued on an ARP entry
2795 is properly ref counted.
2797 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2798 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2799 warnings about comparison.
2800 * pbuf.c: Stopped compiler complaining of empty if statement
2801 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2802 * tcp.c: Stopped compiler complaining of empty if statement
2803 when LWIP_DEBUGF() empty.
2804 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2805 * inet.c: Added a couple of casts to quiet the compiler.
2806 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2808 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2809 * inet.c: Made data types consistent in inet_ntoa().
2810 Added casts for return values of checksum routines, to pacify compiler.
2811 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2812 Small corrections to some debugging statements, to pacify compiler.
2814 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2815 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2816 * ethernetif.c Updated low_level_output() to match prototype for
2817 netif->linkoutput and changed low_level_input() similarly for consistency.
2818 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2819 of raw_recv() in raw.h and so avoid compiler error.
2820 * sockets.c: Added trivial (int) cast to keep compiler happier.
2821 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2827 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2828 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2829 your cc.h file defines this either 1 or 0. If non-defined,
2831 * .c: Added <string.h> and <errno.h> includes where used.
2832 * etharp.c: Made some array indices unsigned.
2834 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2835 * netif.*: Added netif_set_up()/down().
2836 * dhcp.c: Changes to restart program flow.
2838 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2839 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2840 single-pass lookup for different candidates. Should exploit locality.
2842 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2843 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2844 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2845 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2846 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2850 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2851 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2852 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2853 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2854 is to prefix the 14-bit Ethernet headers with two padding bytes.
2856 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2857 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2858 * etharp.c: Fixed the case where the packet that initiates the ARP request
2859 is not queued, and gets lost. Fixed the case where the packets destination
2860 address is already known; we now always queue the packet and perform an ARP
2867 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2868 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2869 * Fixed two possible NULL references in rare cases.
2875 * Fixed DHCP which did not include the IP address in DECLINE messages.
2879 * etharp.c has been hauled over a bit.
2885 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2886 * Packets sent from ARP queue had invalid source hardware address.
2890 * Pass-by ARP requests do now update the cache.
2894 * No longer dependent on ctype.h.
2895 * New socket options.
2896 * Raw IP pcb support.
2902 * Some debug formatters and casts fixed.
2903 * Numereous fixes in PPP.
2907 * DEBUGF now is LWIP_DEBUGF
2908 * pbuf_dechain() has been re-enabled.
2909 * Mentioned the changed use of CVS branches in README.
2915 * Fixed pool pbuf memory leak in pbuf_alloc().
2916 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2917 Reported by Savin Zlobec.
2919 * PBUF_POOL chains had their tot_len field not set for non-first
2920 pbufs. Fixed in pbuf_alloc().
2924 * Added PPP stack contributed by Marc Boucher
2928 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2930 * ARP queueuing now queues the latest packet instead of the first.
2931 This is the RFC recommended behaviour, but can be overridden in
2938 * TCP has been fixed to deal with the new use of the pbuf->ref
2941 * DHCP dhcp_inform() crash bug fixed.
2945 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2946 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2947 Implemented by David Haas.
2953 * The packet buffer implementation has been enhanced to support
2954 zero-copy and copy-on-demand for packet buffers which have their
2955 payloads in application-managed memory.
2956 Implemented by David Haas.
2958 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2959 if an outgoing packet can be directly sent on the link, or perform
2960 a copy-on-demand when necessary.
2962 The application can safely assume the packet is sent, and the RAM
2963 is available to the application directly after calling udp_send()
2964 or similar function.
2968 * ARP_QUEUEING should now correctly work for all cases, including
2970 Implemented by Leon Woestenberg.
2974 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2975 to a '0.0.0.0' IP address.
2977 * The packet buffer implementation is changed. The pbuf->ref counter
2978 meaning has changed, and several pbuf functions have been
2979 adapted accordingly.
2981 * netif drivers have to be changed to set the hardware address length field
2982 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2983 See the contrib/ports/c16x cs8900 driver as a driver example.
2985 * netif's have a dhcp field that must be initialized to NULL by the driver.
2986 See the contrib/ports/c16x cs8900 driver as a driver example.
2988 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2989 logged in CVS but have not been explained here.
2991 (0.5.3) Changes since version 0.5.2
2995 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2996 threads because it wasn't protected by semaphores.
3000 * struct ip_addr now packed.
3002 * The name of the time variable in arp.c has been changed to ctime
3003 to avoid conflicts with the time() function.
3005 (0.5.2) Changes since version 0.5.1
3009 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3013 * A bug in tcp_parseopt() could cause the stack to hang because of a
3014 malformed TCP option.
3016 * The address of new connections in the accept() function in the BSD
3017 socket library was not handled correctly.
3019 * pbuf_dechain() did not update the ->tot_len field of the tail.
3021 * Aborted TCP connections were not handled correctly in all
3026 * All protocol header structs are now packed.
3028 * The ->len field in the tcp_seg structure now counts the actual
3029 amount of data, and does not add one for SYN and FIN segments.
3031 (0.5.1) Changes since version 0.5.0
3035 * Possible to run as a user process under Linux.
3037 * Preliminary support for cross platform packed structs.
3039 * ARP timer now implemented.
3043 * TCP output queue length was badly initialized when opening
3046 * TCP delayed ACKs were not sent correctly.
3048 * Explicit initialization of BSS segment variables.
3050 * read() in BSD socket library could drop data.
3052 * Problems with memory alignment.
3054 * Situations when all TCP buffers were used could lead to
3057 * TCP MSS option wasn't parsed correctly.
3059 * Problems with UDP checksum calculation.
3061 * IP multicast address tests had endianess problems.
3063 * ARP requests had wrong destination hardware address.
3067 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3069 * A ->linkoutput() member was added to struct netif.
3071 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3073 * ntoh* macros are now null definitions for big endian CPUs.
3075 (0.5.0) Changes since version 0.4.2
3079 * Redesigned operating system emulation layer to make porting easier.
3081 * Better control over TCP output buffers.
3083 * Documenation added.
3087 * Locking issues in buffer management.
3089 * Bugfixes in the sequential API.
3091 * IP forwarding could cause memory leakage. This has been fixed.
3095 * Directory structure somewhat changed; the core/ tree has been
3098 (0.4.2) Changes since version 0.4.1
3102 * Experimental ARP implementation added.
3104 * Skeleton Ethernet driver added.
3106 * Experimental BSD socket API library added.
3110 * In very intense situations, memory leakage could occur. This has
3115 * Variables named "data" and "code" have been renamed in order to
3116 avoid name conflicts in certain compilers.
3118 * Variable++ have in appliciable cases been translated to ++variable
3119 since some compilers generate better code in the latter case.
3121 (0.4.1) Changes since version 0.4
3125 * TCP: Connection attempts time out earlier than data
3126 transmissions. Nagle algorithm implemented. Push flag set on the
3127 last segment in a burst.
3129 * UDP: experimental support for UDP-Lite extensions.
3133 * TCP: out of order segments were in some cases handled incorrectly,
3134 and this has now been fixed. Delayed acknowledgements was broken
3135 in 0.4, has now been fixed. Binding to an address that is in use
3136 now results in an error. Reset connections sometimes hung an
3137 application; this has been fixed.
3139 * Checksum calculation sometimes failed for chained pbufs with odd
3140 lengths. This has been fixed.
3142 * API: a lot of bug fixes in the API. The UDP API has been improved
3143 and tested. Error reporting and handling has been
3144 improved. Logical flaws and race conditions for incoming TCP
3145 connections has been found and removed.
3147 * Memory manager: alignment issues. Reallocating memory sometimes
3148 failed, this has been fixed.
3150 * Generic library: bcopy was flawed and has been fixed.
3154 * API: all datatypes has been changed from generic ones such as
3155 ints, to specified ones such as u16_t. Functions that return
3156 errors now have the correct type (err_t).
3158 * General: A lot of code cleaned up and debugging code removed. Many
3159 portability issues have been fixed.
3161 * The license was changed; the advertising clause was removed.
3165 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3166 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3169 (0.4) Changes since version 0.3.1
3171 * Memory management has been radically changed; instead of
3172 allocating memory from a shared heap, memory for objects that are
3173 rapidly allocated and deallocated is now kept in pools. Allocation
3174 and deallocation from those memory pools is very fast. The shared
3175 heap is still present but is used less frequently.
3177 * The memory, memory pool, and packet buffer subsystems now support
3178 4-, 2-, or 1-byte alignment.
3180 * "Out of memory" situations are handled in a more robust way.
3182 * Stack usage has been reduced.
3184 * Easier configuration of lwIP parameters such as memory usage,
3185 TTLs, statistics gathering, etc. All configuration parameters are
3186 now kept in a single header file "lwipopts.h".
3188 * The directory structure has been changed slightly so that all
3189 architecture specific files are kept under the src/arch
3192 * Error propagation has been improved, both in the protocol modules
3195 * The code for the RTXC architecture has been implemented, tested
3198 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3199 the Internet checksum modules.
3201 * Bugs related to porting between a 32-bit and a 16-bit architecture
3202 have been found and corrected.
3204 * The license has been changed slightly to conform more with the
3205 original BSD license, including the advertisement clause.
3207 (0.3.1) Changes since version 0.3
3209 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3210 RAM never returned the RAM when the pbuf was deallocated.
3212 * TCP congestion control, window updates and retransmissions did not
3213 work correctly. This has now been fixed.
3215 * Bugfixes in the API.
3217 (0.3) Changes since version 0.2
3219 * New and improved directory structure. All include files are now
3220 kept in a dedicated include/ directory.
3222 * The API now has proper error handling. A new function,
3223 netconn_err(), now returns an error code for the connection in
3226 * Improvements in the memory management subsystem. The system now
3227 keeps a pointer to the lowest free memory block. A new function,
3228 mem_malloc2() tries to allocate memory once, and if it fails tries
3229 to free some memory and retry the allocation.
3231 * Much testing has been done with limited memory
3232 configurations. lwIP now does a better job when overloaded.
3234 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3236 * Many bugfixes in the TCP code:
3238 - Fixed a bug in tcp_close().
3240 - The TCP receive window was incorrectly closed when out of
3241 sequence segments was received. This has been fixed.
3243 - Connections are now timed-out of the FIN-WAIT-2 state.
3245 - The initial congestion window could in some cases be too
3246 large. This has been fixed.
3248 - The retransmission queue could in some cases be screwed up. This
3251 - TCP RST flag now handled correctly.
3253 - Out of sequence data was in some cases never delivered to the
3254 application. This has been fixed.
3256 - Retransmitted segments now contain the correct acknowledgment
3257 number and advertised window.
3259 - TCP retransmission timeout backoffs are not correctly computed
3260 (ala BSD). After a number of retransmissions, TCP now gives up
3263 * TCP connections now are kept on three lists, one for active
3264 connections, one for listening connections, and one for
3265 connections that are in TIME-WAIT. This greatly speeds up the fast
3266 timeout processing for sending delayed ACKs.
3268 * TCP now provides proper feedback to the application when a
3269 connection has been successfully set up.
3271 * More comments have been added to the code. The code has also been
3272 somewhat cleaned up.
3274 (0.2) Initial public release.