5 * [Enter new changes just after this line - do not remove this line]
9 2012-01-16: Simon Goldschmidt
10 * opt.h, icmp.c: Added option CHECKSUM_GEN_ICMP
12 2011-12-17: Simon Goldschmidt
13 * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW)
16 2011-09-27: Simon Goldschmidt
17 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
18 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
20 2011-09-21: Simon Goldschmidt
21 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
22 send (TCP only, bug #33820)
24 2011-09-21: Simon Goldschmidt
25 * init.c: Converted runtime-sanity-checks into compile-time checks that can
26 be disabled (since runtime checks can often not be seen on embedded targets)
28 2011-09-11: Simon Goldschmidt
29 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
30 to get a clear separation of which functions an application or port may use
33 2011-09-11: Simon Goldschmidt
34 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
35 initial local TCP/UDP ports (so that different port ranges are used after
36 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
38 2011-09-03: Simon Goldschmidt
39 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
41 2011-08-24: Simon Goldschmidt
42 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
44 2011-07-26: Simon Goldschmidt
45 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
46 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
48 2011-07-21: Simon Goldschmidt (patch by hanhui)
49 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
50 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
51 Also added code to allow ip_forward() to forward non-broadcast packets to
52 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
54 2011-07-21: Simon Goldschmidt
55 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
56 ioctl/FIONREAD return the size of the next pending datagram.
58 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
59 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
62 2011-05-25: Simon Goldschmidt
63 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
64 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
65 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
66 code so that the code is more readable.
68 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
69 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
70 Ivan! (this is work in progress: we're just post release anyway :-)
72 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
73 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
79 2011-11-25: Simon Goldschmidt
80 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
81 tcp_active_pcbs in some cases
83 2011-11-23: Simon Goldschmidt
84 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
87 2011-11-22: Simon Goldschmidt
88 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
91 2011-10-28: Simon Goldschmidt
92 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
94 2011-10-23: Simon Goldschmidt
95 * mem.c: fixed bug #34429: possible memory corruption with
96 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
98 2011-10-18: Simon Goldschmidt
99 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
102 2011-10-18: Simon Goldschmidt
103 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
104 windows (bug #34176 select after non-blocking send times out)
106 2011-10-18: Simon Goldschmidt
107 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
108 consider netif->mtu, causes slow network
110 2011-10-18: Simon Goldschmidt
111 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
113 2011-10-18: Simon Goldschmidt
114 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
116 2011-10-17: Simon Goldschmidt
117 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
119 2011-10-13: Simon Goldschmidt
120 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
121 zero window is received) by starting the persist timer when a zero window is
122 received, not when we have more data queued for sending than fits into the
125 2011-10-13: Simon Goldschmidt
126 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
128 2011-10-13: Simon Goldschmidt
129 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
130 used and not all protocols are enabled
132 2011-10-12: Simon Goldschmidt
133 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
135 2011-10-09: Simon Goldschmidt
136 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
137 byte value when pcb->unacked != NULL
139 2011-10-09: Simon Goldschmidt
140 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
142 2011-09-27: Simon Goldschmidt
143 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
145 2011-09-27: Simon Goldschmidt
146 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
148 2011-09-27: Simon Goldschmidt
149 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
151 2011-09-24: Simon Goldschmidt
152 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
154 2011-09-23: Simon Goldschmidt
155 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
156 the last packet including FIN can lose data
158 2011-09-22: Simon Goldschmidt
159 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
162 2011-09-21: Simon Goldschmidt
163 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
166 2011-09-20: Simon Goldschmidt
167 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
169 2011-09-11: Simon Goldschmidt
170 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
173 2011-09-09: Simon Goldschmidt
174 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
177 2011-09-03: Simon Goldschmidt
178 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
179 is aggregated and sent to application
181 2011-09-01: Simon Goldschmidt
182 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
185 2011-09-01: Simon Goldschmidt
186 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
188 2011-08-24: Simon Goldschmidt
189 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
191 2011-08-24: Simon Goldschmidt
192 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
193 accept() on UDP connections
195 2011-08-24: Simon Goldschmidt
196 * sockets.h: fixed bug #34057 socklen_t should be a typedef
198 2011-08-24: Simon Goldschmidt
199 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
201 2011-08-24: Simon Goldschmidt
202 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
204 2011-08-24: Simon Goldschmidt
205 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
207 2011-08-22: Simon Goldschmidt
208 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
209 merely prevents nagle from not transmitting fast after closing.)
211 2011-07-22: Simon Goldschmidt
212 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
213 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
214 lwip_send() sends as much as possible for non-blocking sockets
216 2011-07-22: Simon Goldschmidt
217 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
218 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
219 at regular intervals from main level.
221 2011-07-21: Simon Goldschmidt
222 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
223 sending an ARP request when an ARP entry is used in the last minute before
226 2011-07-04: Simon Goldschmidt
227 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
229 2011-06-26: Simon Goldschmidt
230 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
231 updating its documentation only.
233 2011-06-26: Simon Goldschmidt
234 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
237 2011-06-26: Simon Goldschmidt
238 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
246 2011-03-27: Simon Goldschmidt
247 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
248 calculate it in tcp_zero_window_probe (the only place where it was used).
250 2010-11-21: Simon Goldschmidt
251 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
254 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
255 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
256 IP_MULTICAST_LOOP at socket- and raw-API level.
258 2010-06-16: Simon Goldschmidt
259 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
260 link-layer-addressed UDP traffic to be received while a netif is down (just
261 like DHCP during configuration)
263 2010-05-22: Simon Goldschmidt
264 * many many files: bug #27352: removed packing from ip_addr_t, the packed
265 version is now only used in protocol headers. Added global storage for
266 current src/dest IP address while in input functions.
268 2010-05-16: Simon Goldschmidt
269 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
270 calculation (and use them throughout the stack where applicable)
272 2010-05-16: Simon Goldschmidt
273 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
274 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
276 2010-05-16: Simon Goldschmidt
277 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
278 MEMP pool instead of the heap
280 2010-05-13: Simon Goldschmidt
281 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
282 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
283 packets to more than one pcb.
285 2010-05-02: Simon Goldschmidt
286 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
287 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
289 2010-04-30: Simon Goldschmidt
290 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
291 take a precalculated checksum, added pbuf_fill_chksum() to copy data
292 into a pbuf and at the same time calculating the checksum for that data
294 2010-04-29: Simon Goldschmidt
295 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
296 2-byte-aligned IP addresses and MAC addresses
298 2010-04-28: Patch by Bill Auerbach
299 * ip.c: Inline generating IP checksum to save a function call
301 2010-04-14: Simon Goldschmidt
302 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
303 tcpip_thread processes messages or timeouts to implement a watchdog.
305 2010-03-28: Simon Goldschmidt
306 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
307 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
309 2010-03-27: Simon Goldschmidt
310 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
311 etharp_query to prevent unnecessary function calls (inspired by
314 2010-03-20: Simon Goldschmidt
315 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
316 since the linker cannot do this automatically to save space.
318 2010-03-20: Simon Goldschmidt
319 * opt.h, etharp.c/.h: Added support for static ARP table entries
321 2010-03-14: Simon Goldschmidt
322 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
323 when creating TCP segments, not when (re-)transmitting them.
325 2010-03-07: Simon Goldschmidt
326 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
327 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
328 This should speed up receiving data on sockets as the select code in
329 event_callback is only executed when select is waiting.
331 2010-03-06: Simon Goldschmidt
332 * tcp_out.c: task #7013 (Create option to have all packets delivered to
333 netif->output in one piece): Always copy to try to create single pbufs
336 2010-03-06: Simon Goldschmidt
337 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
338 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
339 for tcp netconns to receive pbufs, not netbufs; use that function
342 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
343 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
344 Work on tcp_enqueue: Don't waste memory when chaining segments,
345 added option TCP_OVERSIZE to prevent creating many small pbufs when
346 calling tcp_write with many small blocks of data. Instead, pbufs are
347 allocated larger than needed and the space is used for later calls to
350 2010-02-21: Simon Goldschmidt
351 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
354 2010-02-21: Simon Goldschmidt
355 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
356 implementation of tcp to make API usage cleare to application programmers
358 2010-02-14: Simon Goldschmidt/Stephane Lesage
359 * ip_addr.h: Improved some defines working on ip addresses, added faster
360 macro to copy addresses that cannot be NULL
362 2010-02-13: Simon Goldschmidt
363 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
364 blocking send operation)
366 2010-02-12: Simon Goldschmidt
367 * sockets.c/.h: Added a minimal version of posix fctl() to have a
368 standardised way to set O_NONBLOCK for nonblocking sockets.
370 2010-02-12: Simon Goldschmidt
371 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
372 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
373 and dhcp work with user-allocated structs instead of callin mem_malloc
375 2010-02-12: Simon Goldschmidt/Jeff Barber
376 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
377 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
379 2010-02-12: Simon Goldschmidt
380 * sys layer: task #10139 (Prefer statically allocated memory): converted
381 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
382 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
383 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
384 to let sys.h use binary semaphores instead of mutexes - as before)
386 2010-02-09: Simon Goldschmidt (Simon Kallweit)
387 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
388 (Restart system timeout handling)
390 2010-02-09: Simon Goldschmidt
391 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
392 netif.c) - loopif does not have to be created by the port any more,
393 just define LWIP_HAVE_LOOPIF to 1.
395 2010-02-08: Simon Goldschmidt
396 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
397 inet_ntoa_r/ipaddr_ntoa_r
399 2010-02-08: Simon Goldschmidt
400 * netif.h: Added netif_s/get_igmp_mac_filter() macros
402 2010-02-05: Simon Goldschmidt
403 * netif.h: Added function-like macros to get/set the hostname on a netif
405 2010-02-04: Simon Goldschmidt
406 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
407 make changing the actual implementation behind the typedef easier.
409 2010-02-01: Simon Goldschmidt
410 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
411 for allocating memory when getaddrinfo() is called.
413 2010-01-31: Simon Goldschmidt
414 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
415 them once instead of parsing for every option. This also removes
416 the need for mem_malloc from dhcp_recv and makes it possible to
417 correctly retrieve the BOOTP file.
419 2010-01-30: simon Goldschmidt
420 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
423 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
424 * api.h, api_msg.c, sockets.c: Added except set support in select
427 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
428 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
429 Add non-blocking support for connect (partly from patch #6860),
430 plus many cleanups in socket & netconn API.
432 2010-01-27: Simon Goldschmidt
433 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
434 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
436 2010-01-26: Simon Goldschmidt
437 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
439 2010-01-14: Simon Goldschmidt
440 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
441 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
443 2010-01-13: Simon Goldschmidt
444 * mem.c: The heap now may be moved to user-defined memory by defining
445 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
446 (patch #6966 and bug #26133)
448 2010-01-10: Simon Goldschmidt (Bill Auerbach)
449 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
452 2010-01-10: Simon Goldschmidt
453 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
454 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
456 2009-12-31: Simon Goldschmidt
457 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
458 added timers.c/.h: Separated timer implementation from semaphore/mbox
459 implementation, moved timer implementation to timers.c/.h, timers are
460 now only called from tcpip_thread or by explicitly checking them.
463 2009-12-27: Simon Goldschmidt
464 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
465 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
470 2011-04-20: Simon Goldschmidt
471 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
473 2011-04-13: Simon Goldschmidt
474 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
475 using ports in the IANA private/dynamic range (49152 through 65535).
477 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
478 * etharp.h/.c: Fixed broken VLAN support.
480 2011-03-27: Simon Goldschmidt
481 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
482 pcbs) by checking if the pcb was bound (local_port != 0).
484 2011-03-27: Simon Goldschmidt
485 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
487 2011-03-27: Simon Goldschmidt
488 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
489 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
491 2011-03-27: Simon Goldschmidt
492 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
493 is present never times out) by starting retransmission timer before checking
496 2011-03-22: Simon Goldschmidt
497 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
498 calling sio_read_abort() if the file descriptor is valid.
500 2011-03-14: Simon Goldschmidt
501 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
502 more than once can render a socket useless) since it mainly involves changing
503 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
505 2011-03-13: Simon Goldschmidt
506 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
507 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
508 use EALRADY instead of -1
510 2011-03-13: Simon Goldschmidt
511 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
512 connection has been aborted by err_tcp (since this is not a normal closing
515 2011-03-13: Simon Goldschmidt
516 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
517 with pcb->state != CLOSED
519 2011-02-17: Simon Goldschmidt
520 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
523 2011-02-17: Simon Goldschmidt
524 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
526 2011-01-24: Simon Goldschmidt
527 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
529 2010-12-02: Simon Goldschmidt
530 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
532 2010-11-23: Simon Goldschmidt
533 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
534 LWIP_SO_RCVBUF and ioctl/FIONREAD.
536 2010-11-23: Simon Goldschmidt
537 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
538 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
540 2010-11-23: Simon Goldschmidt
541 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
542 refusing 'refused_data' again.
544 2010-11-22: Simon Goldschmidt
545 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
546 after a successful nonblocking connection.
548 2010-11-22: Simon Goldschmidt
549 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
550 must be sent link-local
552 2010-11-22: Simon Goldschmidt
553 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
556 2010-11-20: Simon Goldschmidt
557 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
559 2010-11-20: Simon Goldschmidt
560 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
561 resemble other stacks.
563 2010-11-20: Simon Goldschmidt
564 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
565 no-copy TCP writes will never succeed.
567 2010-11-20: Simon Goldschmidt
568 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
569 not match documentation: return ERR_ARG instead of ERR_VAL if not
570 initialized or wrong argument.
572 2010-10-20: Simon Goldschmidt
573 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
575 2010-10-05: Simon Goldschmidt
576 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
577 replugging the network cable after an AutoIP address was assigned.
579 2010-08-10: Simon Goldschmidt
580 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
582 2010-08-03: Simon Goldschmidt
583 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
585 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
586 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
587 endian architectures)
589 2010-07-28: Simon Goldschmidt
590 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
593 2010-07-27: Simon Goldschmidt
594 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
595 harm but never did anything
597 2010-07-21: Simon Goldschmidt
598 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
601 2010-07-16: Kieran Mansley
602 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
604 2010-07-10: Simon Goldschmidt
605 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
607 2010-06-30: Simon Goldschmidt
608 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
611 2010-06-28: Kieran Mansley
612 * timers.c remove unportable printing of C function pointers
614 2010-06-24: Simon Goldschmidt
615 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
616 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
618 2010-06-24: Simon Goldschmidt
619 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
620 implemented shutdown at socket level.
622 2010-06-21: Simon Goldschmidt
623 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
624 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
625 custom pbufs that reference other (original) pbufs. Additionally set
626 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
628 2010-06-15: Simon Goldschmidt
629 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
631 2010-06-14: Simon Goldschmidt
632 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
634 2010-06-12: Simon Goldschmidt
635 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
638 2010-05-17: Simon Goldschmidt
639 * netdb.c: Correctly NULL-terminate h_addr_list
641 2010-05-16: Simon Goldschmidt
642 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
643 "symbol already defined" i.e. when linking to winsock
645 2010-05-05: Simon Goldschmidt
646 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
649 2010-04-21: Simon Goldschmidt
650 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
653 2010-03-28: Luca Ceresoli
654 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
656 2010-03-27: Luca Ceresoli
657 * mib2.c: patch #7130: remove meaningless const qualifiers
659 2010-03-26: Simon Goldschmidt
660 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
662 2010-03-26: Simon Goldschmidt
663 * various files: Fixed compiling with different options disabled (TCP/UDP),
664 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
666 2010-03-25: Simon Goldschmidt
667 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
669 2010-03-25: Simon Goldschmidt
670 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
671 overrunning our rcv_wnd in ooseq case.
673 2010-03-22: Simon Goldschmidt
674 * tcp.c: tcp_listen() did not copy the pcb's prio.
676 2010-03-19: Simon Goldschmidt
677 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
679 2010-03-14: Simon Goldschmidt
680 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
681 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
682 and basing PBUF_LINK_HLEN on it.
684 2010-03-08: Simon Goldschmidt
685 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
686 when assiging routable address): when checking incoming packets and
687 aborting existing connection on address change, filter out link-local
690 2010-03-06: Simon Goldschmidt
691 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
693 2010-03-06: Simon Goldschmidt
694 * ipv4/ip.c: Don't try to forward link-local addresses
696 2010-03-06: Simon Goldschmidt
697 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
700 2010-03-05: Simon Goldschmidt
701 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
704 2010-03-05: Simon Goldschmidt
705 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
706 into multiple calls to tcp_write.
708 2010-02-21: Simon Goldschmidt
709 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
710 the implementation of DNS_USES_STATIC_BUF==1)
712 2010-02-20: Simon Goldschmidt
713 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
714 close() vs. shutdown(). Now the application does not get any more
715 recv callbacks after calling tcp_close(). Added tcp_shutdown().
717 2010-02-19: Simon Goldschmidt
718 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
719 confusion with realloc()
721 2010-02-15: Simon Goldschmidt/Stephane Lesage
722 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
725 2010-02-14: Simon Goldschmidt
726 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
727 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
728 admin-status of a netif are up
730 2010-02-14: Simon Goldschmidt
731 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
732 reception and is not really necessary
734 2010-02-14: Simon Goldschmidt
735 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
736 request was directed as us (RFC 826, Packet Reception), otherwise
737 only update existing entries; internalized some functions
739 2010-02-14: Simon Goldschmidt
740 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
741 disabled on netif used for PPPoE) by adding a new netif flag
742 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
743 device but prevents usage of ARP (so that ethernet_input can be used
746 2010-02-12: Simon Goldschmidt
747 * netif.c: netif_set_link_up/down: only do something if the link state
750 2010-02-12: Simon Goldschmidt/Stephane Lesage
751 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
754 2010-02-12: Simon Goldschmidt
755 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
757 2010-02-09: Simon Goldschmidt
758 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
759 (recv() makes receive window update for data that wasn't received by
762 2010-02-09: Simon Goldschmidt/Stephane Lesage
763 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
764 or any netconn_recv() error)
766 2010-02-09: Simon Goldschmidt
767 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
769 2010-02-09: Simon Goldschmidt
770 * netif.c: For loopback packets, adjust the stats- and snmp-counters
771 for the loopback netif.
773 2010-02-08: Simon Goldschmidt
774 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
775 since they are not used anywhere else.
777 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
778 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
779 (patch from bug #28798)
781 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
782 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
783 another bug when LWIP_RAND() returns zero.
785 2010-02-04: Simon Goldschmidt
786 * nearly every file: Use macros defined in ip_addr.h (some of them new)
787 to work with IP addresses (preparation for bug #27352 - Change ip_addr
788 from struct to typedef (u32_t) - and better code).
790 2010-01-31: Simon Goldschmidt
791 * netif.c: Don't call the link-callback from netif_set_up/down() since
792 this invalidly retriggers DHCP.
794 2010-01-29: Simon Goldschmidt
795 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
796 portability file inet.h and its contents from the stack: moved htonX-
797 functions to def.h (and the new def.c - they are not ipv4 dependent),
798 let inet.h depend on ip_addr.h and not the other way round.
799 This fixes bug #28732.
801 2010-01-28: Kieran Mansley
802 * tcp.c: Ensure ssthresh >= 2*MSS
804 2010-01-27: Simon Goldschmidt
805 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
806 callback can lead to accessing unallocated memory. As a consequence,
807 ERR_ABRT means the application has called tcp_abort()!
809 2010-01-25: Simon Goldschmidt
810 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
811 not implemented in SNMP): write-only or not-accessible are still
812 returned by getnext (though not by get)
814 2010-01-24: Simon Goldschmidt
815 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
816 not use reserved C/C++ keywords
818 2010-01-23: Simon Goldschmidt
819 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
822 2010-01-21: Simon Goldschmidt
823 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
824 if tcp_enqueue fails) both in raw- and netconn-API
826 2010-01-19: Simon Goldschmidt
827 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
829 2010-01-18: Iordan Neshev/Simon Goldschmidt
830 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
831 bugfix backports from 2.4.x.
833 2010-01-18: Simon Goldschmidt
834 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
836 2010-01-17: Simon Goldschmidt
837 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
838 task #10102: "netconn: clean up conn->err threading issues" by adding
839 error return value to struct api_msg_msg
841 2010-01-17: Simon Goldschmidt
842 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
843 to return err_t (bugs #27709 and #28087)
845 2010-01-14: Simon Goldschmidt
846 * ...: Use typedef for function prototypes throughout the stack.
848 2010-01-13: Simon Goldschmidt
849 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
850 window = 0) by correctly draining recvmbox/acceptmbox
852 2010-01-11: Simon Goldschmidt
853 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
854 erroneous callbacks) by copying the code from recent pppd
856 2010-01-10: Simon Goldschmidt
857 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
859 2010-01-10: Simon Goldschmidt
860 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
862 2010-01-08: Simon Goldschmidt
863 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
865 2010-01-08: Simon Goldschmidt
866 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
867 passed to dns_local_addhost() might be volatile
869 2010-01-07: Simon Goldschmidt
870 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
872 2010-01-06: Simon Goldschmidt
873 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
875 2009-12-31: Simon Goldschmidt
876 * many ppp files: Reorganised PPP source code from ucip structure to pppd
877 structure to easily compare our code against the pppd code (around v2.3.1)
879 2009-12-27: Simon Goldschmidt
880 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
888 2009-10-27 Simon Goldschmidt/Stephan Lesage
889 * netifapi.c/.h: Added netifapi_netif_set_addr()
891 2009-10-07 Simon Goldschmidt/Fabian Koch
892 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
893 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
895 2009-08-26 Simon Goldschmidt/Simon Kallweit
896 * slipif.c/.h: bug #26397: SLIP polling support
898 2009-08-25 Simon Goldschmidt
899 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
900 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
902 2009-08-25 Simon Goldschmidt
903 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
905 2009-08-24 Jakob Stoklund Olesen
906 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
907 to netif_set_link_up().
909 2009-08-23 Simon Goldschmidt
910 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
911 to a human-readable string.
915 2009-12-24: Kieran Mansley
916 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
919 2009-12-06: Simon Goldschmidt
920 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
921 be statically allocated (like in ucip)
923 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
924 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
926 2009-12-03: Simon Goldschmidt
927 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
928 could have non-zero length
930 2009-12-02: Simon Goldschmidt
931 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
932 tcp_input_pcb until after calling the pcb's callbacks
934 2009-11-29: Simon Goldschmidt
935 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
936 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
938 2009-11-29: Simon Goldschmidt
939 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
940 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
942 2009-11-26: Simon Goldschmidt
943 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
946 2009-11-26: Simon Goldschmidt
947 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
948 algorithm at PCB level
950 2009-11-22: Simon Goldschmidt
951 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
953 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
954 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
955 reusing time-wait pcb
957 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
958 * sockets.c: Fixed bug #28062: Data received directly after accepting
959 does not wake up select
961 2009-11-11: Simon Goldschmidt
962 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
964 2009-10-30: Simon Goldschmidt
965 * opt.h: Increased default value for TCP_MSS to 536, updated default
966 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
968 2009-10-28: Kieran Mansley
969 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
970 to follow algorithm from TCP/IP Illustrated
972 2009-10-27: Kieran Mansley
973 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
975 2009-10-25: Simon Goldschmidt
976 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
977 pcb->recv is NULL to keep rcv_wnd correct)
979 2009-10-25: Simon Goldschmidt
980 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
982 2009-10-23: Simon Goldschmidt (David Empson)
983 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
985 2009-10-21: Simon Goldschmidt
986 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
987 trailing 1 byte len (SYN/FIN)
989 2009-10-21: Simon Goldschmidt
990 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
992 2009-10-19: Simon Goldschmidt
993 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
994 conditional code to assert where applicable), check pbuf length before
995 testing for valid reply
997 2009-10-19: Simon Goldschmidt
998 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
999 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1001 2009-10-16: Simon Goldschmidt
1002 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1003 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1006 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1007 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1009 2009-10-15: Simon Goldschmidt
1010 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1013 2009-10-15: Simon Goldschmidt
1014 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1015 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1016 of network byte order
1018 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1019 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1020 which are not consecutive when retransmitting unacked segments
1022 2009-10-09 Simon Goldschmidt
1023 * opt.h: Fixed default values of some stats to only be enabled if used
1024 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1026 2009-08-30 Simon Goldschmidt
1027 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1028 function" by checking for loopback before calling ip_frag
1030 2009-08-25 Simon Goldschmidt
1031 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1033 2009-08-23 Simon Goldschmidt
1034 * ppp.c: bug #27078: Possible memory leak in pppInit()
1036 2009-08-23 Simon Goldschmidt
1037 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1040 2009-08-23 Simon Goldschmidt
1041 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1042 Fixed wrong parenthesis, added check in init.c
1044 2009-08-23 Simon Goldschmidt
1045 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1047 2009-08-23 Simon Goldschmidt
1048 * many ppp files: bug #27267: Added include to string.h where needed
1050 2009-08-23 Simon Goldschmidt
1051 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1058 2009-05-10 Simon Goldschmidt
1059 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1060 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1061 one pbuf to help MACs that don't support scatter-gather DMA.
1063 2009-05-09 Simon Goldschmidt
1064 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1065 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1067 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1068 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1069 extended info about the currently received packet.
1071 2009-04-27 Simon Goldschmidt
1072 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1074 2009-04-25 Simon Goldschmidt
1075 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1076 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1078 2009-04-21 Simon Goldschmidt
1079 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1080 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1081 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1082 as an external function for lookup.
1084 2009-04-15 Simon Goldschmidt
1085 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1087 2009-03-31 Kieran Mansley
1088 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1089 TCP timestamp options, off by default. Rework tcp_enqueue() to
1090 take option flags rather than specified option data
1092 2009-02-18 Simon Goldschmidt
1093 * cc.h: Added printf formatter for size_t: SZT_F
1095 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1096 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1099 2009-02-12 Simon Goldschmidt
1100 * init.h: Added LWIP_VERSION to get the current version of the stack
1102 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1103 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1104 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1107 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1108 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1109 is only used by UDPLITE at present, so conditionalise it.
1111 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1112 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1113 "seed" address. This should reduce AUTOIP conflicts if
1114 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1116 2008-10-02 Jonathan Larmour and Rishi Khan
1117 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1120 2008-06-30 Simon Goldschmidt
1121 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1122 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1123 mem_free to run between mem_malloc iterations. Added illegal counter for
1126 2008-06-27 Simon Goldschmidt
1127 * stats.h/.c, some other files: patch #6483: stats module improvement:
1128 Added defines to display each module's statistic individually, added stats
1129 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1131 2008-06-17 Simon Goldschmidt
1132 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1133 (define LWIP_ERR_T in cc.h)
1135 2008-06-17 Simon Goldschmidt
1136 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1139 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1140 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1141 modified version of patch # 6370: Moved loopif code to netif.c so that
1142 loopback traffic is supported on all netifs (all local IPs).
1143 Added option to limit loopback packets for each netifs.
1147 2009-08-12 Kieran Mansley
1148 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1149 out of window or out of order properly
1151 2009-08-12 Kieran Mansley
1152 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1154 2009-07-28 Simon Goldschmidt
1155 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1157 2009-07-27 Kieran Mansley
1158 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1160 2009-07-09 Kieran Mansley
1161 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1162 recv_avail and don't increment counters until message successfully
1165 2009-06-25 Kieran Mansley
1166 * api_msg.c api.h: BUG26722: initialise netconn write variables
1169 2009-06-25 Kieran Mansley
1170 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1172 2009-06-25 Kieran Mansley
1173 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1174 simultaneous close behaviour, and make snd_nxt have the same meaning
1177 2009-05-12 Simon Goldschmidt
1178 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1179 arp_table / uses etharp_query" by adding etharp_gratuitous()
1181 2009-05-12 Simon Goldschmidt
1182 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1183 to the IP header (used by igmp_ip_output_if)
1185 2009-05-06 Simon Goldschmidt
1186 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1187 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1189 2009-05-05 Simon Goldschmidt
1190 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1193 2009-05-04 Simon Goldschmidt
1194 * init.c: snmp was not initialized in lwip_init()
1196 2009-05-04 Frédéric Bernon
1197 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1199 2009-05-03 Simon Goldschmidt
1200 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1201 (and unsent->next == NULL)
1203 2009-05-02 Simon Goldschmidt
1204 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1205 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1207 2009-05-02 Simon Goldschmidt
1208 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1210 2009-05-01 Simon Goldschmidt
1211 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1213 2009-05-01 Simon Goldschmidt
1214 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1216 2009-04-29 Frédéric Bernon
1217 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1218 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1219 of broadcast packets even when this option wasn't set. Port maintainers
1220 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1221 If you want this option also filter broadcast on recv operations, you also
1222 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1224 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1225 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1226 DHCP/AUTOIP cooperation
1228 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1229 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1230 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1231 right place in tcp_output and tcp_rexmit).
1233 2009-04-25 Simon Goldschmidt
1234 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1235 when debugging": memp_sizes contained the wrong sizes (including sanity
1236 regions); memp pools for MEM_USE_POOLS were too small
1238 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1239 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1240 behavior, with with ip address string not ended by a '\0', a space or a
1243 2009-04-19 Simon Goldschmidt
1244 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1245 pcb->err is called, not pcb->connected (with an error code).
1247 2009-04-19 Simon Goldschmidt
1248 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1249 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1251 2009-04-19 Simon Goldschmidt
1252 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1253 in the header pbuf, not the data pbuf)
1255 2009-04-18 Simon Goldschmidt
1256 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1258 2009-04-15 Simon Goldschmidt
1259 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1261 2009-04-15 Simon Goldschmidt
1262 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1264 2009-04-15 Simon Goldschmidt
1265 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1266 ip_hinted_output() (for smaller code mainly)
1268 2009-04-15 Simon Goldschmidt
1269 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1271 2009-04-15 Simon Goldschmidt
1272 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1273 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1274 is big enough in dhcp_start
1276 2009-04-15 Simon Goldschmidt
1277 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1279 2009-04-15 Simon Goldschmidt
1280 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1282 2009-04-15 Simon Goldschmidt
1283 * sockets.c: bug #26121: set_errno can be overridden
1285 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1286 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1289 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1290 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1293 2009-03-31 Kieran Mansley
1294 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1295 updates are calculated and sent (BUG20515)
1297 * tcp_in.c: cope with SYN packets received during established states,
1298 and retransmission of initial SYN.
1300 * tcp_out.c: set push bit correctly when tcp segments are merged
1302 2009-03-27 Kieran Mansley
1303 * tcp_out.c set window correctly on probes (correcting change made
1306 2009-03-26 Kieran Mansley
1307 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1308 connections where no reset required (bug #25622)
1310 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1313 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1314 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1315 too small depending on MEM_ALIGNMENT
1317 2009-02-16 Simon Goldschmidt
1318 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1319 converted size argument of netconn_write to 'size_t'
1321 2009-02-16 Simon Goldschmidt
1322 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1323 by moving accept callback function pointer to TCP_PCB_COMMON
1325 2009-02-12 Simon Goldschmidt
1326 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1329 2009-02-11 Simon Goldschmidt
1330 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1332 2009-02-11 Simon Goldschmidt
1333 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1334 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1336 2009-02-10 Simon Goldschmidt
1337 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1338 Accepts_pending is decrease on a corresponding listen pcb when a connection
1339 in state SYN_RCVD is close.
1341 2009-01-28 Jonathan Larmour
1342 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1345 2008-12-19 Simon Goldschmidt
1346 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1348 2008-12-10 Tamas Somogyi, Frédéric Bernon
1349 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1350 port uses deleted netbuf.
1352 2008-10-18 Simon Goldschmidt
1353 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1356 2008-10-15 Simon Goldschmidt
1357 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1358 by packing the struct ip_reass_helper.
1360 2008-10-03 David Woodhouse, Jonathan Larmour
1361 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1363 2008-10-02 Jonathan Larmour
1364 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1365 padding is included.
1367 2008-09-30 Jonathan Larmour
1368 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1369 assertion check that addrlen isn't NULL.
1371 2008-09-30 Jonathan Larmour
1372 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1374 2008-08-26 Simon Goldschmidt
1375 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1376 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1378 2008-08-14 Simon Goldschmidt
1379 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1380 tcp_close returns != ERR_OK)
1382 2008-07-08 Frédéric Bernon
1383 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1384 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1386 2008-06-24 Jonathan Larmour
1387 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1388 if tcp_seg_copy fails.
1390 2008-06-17 Simon Goldschmidt
1391 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1392 and created defines for swapping bytes and folding u32 to u16.
1394 2008-05-30 Kieran Mansley
1395 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1396 rather than rcv_ann_wnd when deciding if packets are in-window.
1397 Contributed by <arasmussen@consultant.datasys.swri.edu>
1399 2008-05-30 Kieran Mansley
1400 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1401 passing as function pointers when MEM_LIBC_MALLOC is defined.
1403 2008-05-09 Jonathan Larmour
1404 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1405 stop it being treated as a fatal error.
1407 2008-04-15 Simon Goldschmidt
1408 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1411 2008-03-27 Simon Goldschmidt
1412 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1413 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1414 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1415 or heap memory from interrupt context
1417 2008-03-26 Simon Goldschmidt
1418 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1419 host sent a zero mss as TCP option.
1426 2008-03-10 Jonathan Larmour
1427 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1428 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1430 2008-01-22 Frédéric Bernon
1431 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1432 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1434 2008-01-14 Frédéric Bernon
1435 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1436 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1437 tcp_recv callback (see rawapi.txt).
1439 2008-01-14 Frédéric Bernon, Marc Chaland
1440 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1442 2008-01-12 Frédéric Bernon
1443 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1444 netconn::sem per netconn::op_completed like suggested for the task #7490
1445 "Add return value to sys_mbox_post".
1447 2008-01-12 Frédéric Bernon
1448 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1449 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1450 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1452 2008-01-10 Frédéric Bernon
1453 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1454 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1455 "blocking" ("block" parameter = 1).
1457 2008-01-10 Frédéric Bernon
1458 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1459 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1460 "Add return value to sys_mbox_post".
1462 2008-01-05 Frédéric Bernon
1463 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1464 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1465 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1466 indicate the number of pointers query by the mailbox. There is three defines
1467 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1468 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1469 parameter in your implementation, but to ignore it to keep the previous behavior.
1470 The new sys_mbox_trypost function return a value to know if the mailbox is
1471 full or if the message is posted. Take a look to sys_arch.txt for more details.
1472 This new function is used in tcpip_input (so, can be called in an interrupt
1473 context since the function is not blocking), and in recv_udp and recv_raw.
1475 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1476 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1477 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1478 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1479 documentation in the rawapi.txt file.
1481 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1482 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1484 2007-12-31 Frédéric Bernon, Luca Ceresoli
1485 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1486 in autoip". The change in etharp_raw could be removed, since all calls to
1487 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1488 wrong in the future.
1490 2007-12-30 Frédéric Bernon, Tom Evans
1491 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1492 Filtering" reported by Tom Evans.
1494 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1495 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1496 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1497 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1498 keep accepting new connections.
1500 2007-12-13 Frédéric Bernon
1501 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1502 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1504 2007-12-12 Frédéric Bernon
1505 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1506 are the one which have ram usage.
1508 2007-12-05 Frédéric Bernon
1509 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1510 set of variables (=0) or a local one (=1). In this last case, your port should
1511 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1512 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1514 2007-12-03 Simon Goldschmidt
1515 * ip.c: ip_input: check if a packet is for inp first before checking all other
1516 netifs on netif_list (speeds up packet receiving in most cases)
1518 2007-11-30 Simon Goldschmidt
1519 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1520 UDP: move a (connected) pcb selected for input to the front of the list of
1521 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1524 2007-11-28 Simon Goldschmidt
1525 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1527 2007-11-25 Simon Goldschmidt
1528 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1531 2007-11-24 Simon Goldschmidt
1532 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1533 to the new file netdb.c; included lwip_getaddrinfo.
1535 2007-11-21 Simon Goldschmidt
1536 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1537 based on the MTU of the netif used to send. Enabled by default. Disable by
1538 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1540 2007-11-19 Frédéric Bernon
1541 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1542 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1543 copy dns payload to parse the response), return an error if there is no place
1544 for a new query, and fix some minor problems.
1546 2007-11-16 Simon Goldschmidt
1547 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1548 removed files: core/inet.c, core/inet6.c
1549 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1550 inet and chksum part; changed includes in all lwIP files as appropriate
1552 2007-11-16 Simon Goldschmidt
1553 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1554 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1555 (gethostbyname/gethostbyname_r).
1557 2007-11-15 Jim Pettinato, Frédéric Bernon
1558 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1559 requests with RAW api interface. Initialization is done in lwip_init() with
1560 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1561 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1562 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1563 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1564 list with points to improve.
1566 2007-11-06 Simon Goldschmidt
1567 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1568 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1569 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1571 2007-11-06 Simon Goldschmidt
1572 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1573 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1574 implementation from netconn api applications.
1576 2007-11-03 Frédéric Bernon
1577 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1578 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1579 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1580 it. This is a first release which have to be improve for TCP. Note it used the
1581 netconn::recv_avail which need to be more "thread-safe" (note there is already
1582 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1584 2007-11-01 Frédéric Bernon, Marc Chaland
1585 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1586 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1587 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1588 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1589 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1591 2007-10-24 Frédéric Bernon
1592 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1593 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1594 some code (like we have talk in "patch #5919 : Create compile switch to remove
1595 select code"), but it could be done later.
1597 2007-10-08 Simon Goldschmidt
1598 * many files: Changed initialization: many init functions are not needed any
1599 more since we now rely on the compiler initializing global and static
1602 2007-10-06 Simon Goldschmidt
1603 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1604 to enqueue the received pbufs so that multiple packets can be reassembled
1605 simultaneously and no static reassembly buffer is needed.
1607 2007-10-05 Simon Goldschmidt
1608 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1609 all netifs (or ports) can use it.
1611 2007-10-05 Frédéric Bernon
1612 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1613 common function to reduce a little bit the footprint (for all functions using
1614 only the "netif" parameter).
1616 2007-10-03 Frédéric Bernon
1617 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1618 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1619 a little bit the footprint (for all functions using only the "netif" parameter).
1621 2007-09-15 Frédéric Bernon
1622 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1623 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1624 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1625 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1627 2007-09-10 Frédéric Bernon
1628 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1629 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1630 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1631 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1632 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1633 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1634 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1635 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1636 when it's queried (any direct call to "sysuptime" is changed by a call to
1637 snmp_get_sysuptime).
1639 2007-09-09 Frédéric Bernon, Bill Florac
1640 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1641 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1642 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1643 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1644 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1645 the next query message to receive the matching multicast streams).
1647 2007-09-08 Frédéric Bernon
1648 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1649 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1650 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1651 Enable to access to these fields with LWIP_TCP=0.
1653 2007-09-05 Frédéric Bernon
1654 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1655 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1656 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1657 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1658 help to reduce footprint, and to reduce "visibility" on the Internet.
1660 2007-09-05 Frédéric Bernon, Bill Florac
1661 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1662 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1663 parameters have to be provided: a task name, and a task stack size. For this
1664 one, since it's platform dependant, you could define the best one for you in
1665 your lwipopts.h. For port maintainers, you can just add these new parameters
1666 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1669 2007-09-05 Frédéric Bernon
1670 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1671 inside init.c for task #7142 "Sanity check user-configurable values".
1673 2007-09-04 Frédéric Bernon, Bill Florac
1674 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1675 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1676 value). It will avoid potential fragmentation problems, use a counter to know
1677 how many times a group is used on an netif, and free it when all applications
1678 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1679 check if LWIP_IGMP!=0).
1681 2007-09-03 Frédéric Bernon
1682 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1683 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1684 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1685 and/or the "interface" field (for netconn layer), for join/leave operations.
1686 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1687 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1689 2007-08-30 Frédéric Bernon
1690 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1691 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1692 with other API (application based on raw API, or future "socket2" API). Ports
1693 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1695 2007-08-30 Frédéric Bernon, Jonathan Larmour
1696 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1697 user-configurable values".
1699 2007-08-29 Frédéric Bernon
1700 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1701 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1702 spirit than the others modules. Modify some IGMP debug traces.
1704 2007-08-29 Frédéric Bernon
1705 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1706 Add lwip_init function to regroup all modules initializations, and to provide
1707 a place to add code for task #7142 "Sanity check user-configurable values".
1708 Ports maintainers should remove direct initializations calls from their code,
1709 and add init.c in their makefiles. Note that lwip_init() function is called
1710 inside tcpip_init, but can also be used by raw api users since all calls are
1711 disabled when matching options are disabled. Also note that their is new options
1712 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1714 2007-08-26 Marc Boucher
1715 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1716 since they can under certain circumstances be called with an invalid conn
1717 pointer after the connection has been closed (and conn has been freed).
1719 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1720 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1721 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1723 2007-08-22 Frédéric Bernon
1724 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1725 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1727 2007-08-22 Frédéric Bernon
1728 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1729 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1730 name is tcpip_input (we keep the name of 1.2.0 function).
1732 2007-08-17 Jared Grubb
1733 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1734 settings into new memp_std.h and optional user file lwippools.h. This adds
1735 more dynamic mempools, and allows the user to create an arbitrary number of
1736 mempools for mem_malloc.
1738 2007-08-16 Marc Boucher
1739 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1740 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1741 close the connection.
1743 2007-08-16 Marc Boucher
1744 * sockets.c: lwip_accept(): check netconn_peer() error return.
1746 2007-08-16 Marc Boucher
1747 * mem.c, mem.h: Added mem_calloc().
1749 2007-08-16 Marc Boucher
1750 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1751 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1752 and starving other message types.
1753 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1755 2007-08-16 Marc Boucher
1756 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1757 type and flgs (later renamed to flags).
1758 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1759 Improved lwip_recvfrom(). TCP push now propagated.
1761 2007-08-16 Marc Boucher
1762 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1765 2007-08-16 Marc Boucher
1766 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1767 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1768 Added PPPoE support and various PPP improvements.
1770 2007-07-25 Simon Goldschmidt
1771 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1772 making netbuf_copy_partial use this function.
1774 2007-07-25 Simon Goldschmidt
1775 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1776 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1779 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1780 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1781 a link callback in the netif struct, and functions to handle it. Be carefull
1782 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1783 if you want to be sure to be compatible with future changes...
1785 2007-06-30 Frédéric Bernon
1786 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1788 2007-06-21 Simon Goldschmidt
1789 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1790 LWIP_AUTOIP =0 and =1 to remove redundant code.
1792 2007-06-21 Simon Goldschmidt
1793 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1794 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1795 heap. This both prevents memory fragmentation and gives a higher speed
1796 at the cost of more memory consumption. Turned off by default.
1798 2007-06-21 Simon Goldschmidt
1799 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1800 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1801 int to be able to send a bigger buffer than 64K with one time (mainly
1802 used from lwip_send).
1804 2007-06-21 Simon Goldschmidt
1805 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1806 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1808 2007-06-21 Simon Goldschmidt
1809 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1810 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1811 changes on low memory or empty send-buffer.
1813 2007-06-18 Simon Goldschmidt
1814 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1815 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1816 used for ethernet and struct eth_addr already had a defined length of 6).
1818 2007-06-17 Simon Goldschmidt
1819 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1820 to disable UDP checksum generation on transmit.
1822 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1823 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1824 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1825 this macro to check "conn" parameter in api_msg.c functions.
1827 2007-06-11 Simon Goldschmidt
1828 * sockets.c, sockets.h: Added UDP lite support for sockets
1830 2007-06-10 Simon Goldschmidt
1831 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1832 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1835 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1836 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1837 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1838 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1839 (see TODO mark in the source code).
1841 2007-06-09 Simon Goldschmidt
1842 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1843 etharp_output() to match netif->output so etharp_output() can be used
1844 directly as netif->output to save one function call.
1846 2007-06-08 Simon Goldschmidt
1847 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1848 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1849 added initialization of those to ethernetif, slipif and loopif.
1851 2007-05-18 Simon Goldschmidt
1852 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1853 (defaulting to off for now) that can be set to 0 to send fragmented
1854 packets by passing PBUF_REFs down the stack.
1856 2007-05-23 Frédéric Bernon
1857 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1858 connections, such present in patch #5959.
1860 2007-05-23 Frédéric Bernon
1861 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1862 code in only one part...
1864 2007-05-18 Simon Goldschmidt
1865 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1866 elements to overflow. This is achieved by adding some bytes before and after
1867 each pool element (increasing their size, of course), filling them with a
1868 prominent value and checking them on freeing the element.
1869 Set it to 2 to also check every element in every pool each time memp_malloc()
1870 or memp_free() is called (slower but more helpful).
1872 2007-05-10 Simon Goldschmidt
1873 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1874 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1877 2007-05-11 Frédéric Bernon
1878 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1879 Include a function pointer instead of a table index in the message to reduce
1880 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1881 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1883 2007-05-10 Simon Goldschmidt
1884 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1885 \ extern "C" {' in all header files. Now you can write your application using
1886 the lwIP stack in C++ and simply #include the core files. Note I have left
1887 out the netif/ppp/*h header files for now, since I don't know which files are
1888 included by applications and which are for internal use only.
1890 2007-05-09 Simon Goldschmidt
1891 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1892 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1893 situations where some compilers might inline the copy and save a function
1894 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1896 2007-05-08 Simon Goldschmidt
1897 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1898 to be overriden in case the C-library malloc implementation is not protected
1899 against concurrent access.
1901 2007-05-04 Simon Goldschmidt (Atte Kojo)
1902 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1903 multiple packets to the same host.
1905 2007-05-04 Frédéric Bernon, Jonathan Larmour
1906 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1907 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1908 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1909 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1910 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1911 these fields are now renamed "addr" & "port".
1913 2007-04-11 Jonathan Larmour
1914 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1915 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1916 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1917 by the port in sys_arch.h if desired.
1919 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1920 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1921 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1922 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1924 2007-04-05 Frédéric Bernon
1925 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1927 2007-04-04 Simon Goldschmidt
1928 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1929 use this for and architecture-independent form to tell the compiler you intentionally
1930 are not using this variable. Can be overriden in cc.h.
1932 2007-03-28 Frédéric Bernon
1933 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1934 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1935 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1936 It will be used by DHCP to register a client hostname, but can also be use when you call
1939 2007-03-28 Frédéric Bernon
1940 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1941 initialize a network interface's flag with. It tell this interface is an ethernet
1942 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1943 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1945 2007-03-26 Frédéric Bernon, Jonathan Larmour
1946 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1947 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1948 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1949 is done in tcpip_init function.
1951 2007-03-22 Frédéric Bernon
1952 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1953 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1954 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1955 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1956 but never used. Fix msg_in.c with the correct #if test for a stat display.
1958 2007-03-21 Kieran Mansley
1959 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1960 Provides callback on netif up/down state change.
1962 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1963 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1964 ip.c, netif.h, tcpip.c, opt.h:
1965 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1966 filter per all network interfaces. Declare a new function in netif to enable to
1967 control the MAC filter (to reduce lwIP traffic processing).
1969 2007-03-11 Frédéric Bernon
1970 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1971 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1972 unless you know what you're doing (default are RFC1122 compliant). Note
1973 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1975 2007-03-08 Frédéric Bernon
1976 * tcp.h: Keepalive values can be configured at compile time, but don't change
1977 this unless you know what you're doing (default are RFC1122 compliant).
1979 2007-03-08 Frédéric Bernon
1980 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1981 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1982 on UDP sockets/netconn.
1984 2007-03-08 Simon Goldschmidt
1985 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1987 2007-03-06 Frédéric Bernon
1988 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1989 Implement SO_RCVTIMEO on UDP sockets/netconn.
1991 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1992 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1993 on the stack and remove the API msg type from memp
1995 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1996 * sockets.h, sockets.c: Move socket initialization to new
1997 lwip_socket_init() function.
1998 NOTE: this changes the API with ports. Ports will have to be
1999 updated to call lwip_socket_init() now.
2001 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2002 * api_lib.c: Use memcpy in netbuf_copy_partial.
2007 2008-03-17 Frédéric Bernon, Ed Kerekes
2008 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2009 some problems to fill the IP header on some targets, use now the
2010 ip.h macros to do it).
2012 2008-03-13 Frédéric Bernon
2013 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2014 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2015 TCP connection caused a crash. Note that using (lwip_)recvfrom
2016 like this is a bit slow and that using (lwip)getpeername is the
2017 good lwip way to do it (so, using recv is faster on tcp sockets).
2019 2008-03-12 Frédéric Bernon, Jonathan Larmour
2020 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2021 recv_raw() does not consume data", and the ping sample (with
2022 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2023 returned the IP payload, without the IP header).
2025 2008-03-04 Jonathan Larmour
2026 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2027 and/or warnings on some systems where mem_size_t and size_t differ.
2028 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2030 2008-03-04 Kieran Mansley (contributions by others)
2031 * Numerous small compiler error/warning fixes from contributions to
2032 mailing list after 1.3.0 release candidate made.
2034 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2035 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2037 2008-01-15 Kieran Mansley
2038 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2039 prevented from sending by a small send window, not just a zero
2042 2008-01-09 Jonathan Larmour
2043 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2044 conflict with Linux system headers.
2046 2008-01-06 Jonathan Larmour
2047 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2048 address entirely on receiving a DHCPNAK, and restarting discovery.
2050 2007-12-21 Simon Goldschmidt
2051 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2052 is not protected" by using new macros for interlocked access to modify/test
2053 netconn->recv_avail.
2055 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2056 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2058 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2059 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2060 of silly window avoidance and prevent lwIP from shrinking the window)
2062 2007-12-04 Simon Goldschmidt
2063 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2064 data packet was lost): add assert that all segment lists are empty in
2065 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2066 state from LAST_ACK in tcp_process
2068 2007-12-02 Simon Goldschmidt
2069 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2070 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2071 has to be set to 0 in lwipopts.h
2073 2007-12-02 Simon Goldschmidt
2074 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2075 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2076 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2077 This is a fix for thread-safety and allocates all items needed for a netconn
2078 when the netconn is created.
2080 2007-11-30 Simon Goldschmidt
2081 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2082 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2083 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2084 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2086 2007-11-27 Simon Goldschmidt
2087 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2088 letting ip_route only use netifs that are up.
2090 2007-11-27 Simon Goldschmidt
2091 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2092 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2093 sockets block most operations once they have seen a fatal error.
2095 2007-11-27 Simon Goldschmidt
2096 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2097 netif to send as an argument (to be able to send on netifs that are down).
2099 2007-11-26 Simon Goldschmidt
2100 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2103 2007-11-21 Simon Goldschmidt
2104 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2105 Fixed the nagle algorithm; nagle now also works for all raw API applications
2106 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2108 2007-11-12 Frédéric Bernon
2109 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2110 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2111 context in do_getaddr.
2113 2007-11-10 Simon Goldschmidt
2114 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2115 happen any time). Now the packet simply isn't enqueued when out of memory.
2117 2007-11-01 Simon Goldschmidt
2118 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2119 TCP_MSS if that is smaller) as long as no MSS option is received from the
2122 2007-11-01 Simon Goldschmidt
2123 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2124 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2125 sending our configured TCP_MSS instead of the one received).
2127 2007-11-01 Simon Goldschmidt
2128 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2129 calculated based on the configured TCP_MSS, not on the MSS option received
2132 2007-10-09 Simon Goldschmidt
2133 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2134 short and also was generated wrong if checksum coverage != tot_len;
2135 receive: checksum was calculated wrong if checksum coverage != tot_len
2137 2007-10-08 Simon Goldschmidt
2138 * mem.c: lfree was not updated in mem_realloc!
2140 2007-10-07 Frédéric Bernon
2141 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2142 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2143 this change cause an API breakage for netconn_addr, since a parameter
2144 type change. Any compiler should cause an error without any changes in
2145 yours netconn_peer calls (so, it can't be a "silent change"). It also
2146 reduce a little bit the footprint for socket layer (lwip_getpeername &
2147 lwip_getsockname use now a common lwip_getaddrname function since
2148 netconn_peer & netconn_addr have the same parameters).
2150 2007-09-20 Simon Goldschmidt
2151 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2152 by checking tcp_tw_pcbs also
2154 2007-09-19 Simon Goldschmidt
2155 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2157 2007-09-15 Mike Kleshov
2158 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2160 2007-09-06 Frédéric Bernon
2161 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2162 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2163 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2164 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2166 2007-08-30 Frédéric Bernon
2167 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2168 and fix some coding style.
2170 2007-08-28 Frédéric Bernon
2171 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2172 kind of packets. These packets are considered like Ethernet packets (payload
2173 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2174 are considered like IP packets (payload pointing to iphdr).
2176 2007-08-27 Frédéric Bernon
2177 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2178 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2179 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2181 2007-08-24 Kieran Mansley
2182 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2183 compiler (Paradigm C++)
2185 2007-08-09 Frédéric Bernon, Bill Florac
2186 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2187 Introduce IGMP_STATS to centralize statistics management.
2189 2007-08-09 Frédéric Bernon, Bill Florac
2190 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2191 packet on a udp pcb binded on an netif's IP address, and not on "any".
2193 2007-08-09 Frédéric Bernon, Bill Florac
2194 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2195 This is mainly on using lookup/lookfor, and some coding styles...
2197 2007-07-26 Frédéric Bernon (and "thedoctor")
2198 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2200 2007-07-25 Simon Goldschmidt
2201 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2202 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2203 (tcp_output is called again later from tcp timers).
2205 2007-07-25 Simon Goldschmidt
2206 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2207 copy_from_pbuf, which illegally modified the given pbuf.
2209 2007-07-25 Simon Goldschmidt
2210 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2211 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2213 2007-07-24 Simon Goldschmidt
2214 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2215 correct state (must be CLOSED).
2217 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2218 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2219 allocation. It now returns NULL.
2221 2007-07-13 Frédéric Bernon
2222 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2225 2007-07-13 Frédéric Bernon
2226 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2227 because current code doesn't follow rawapi.txt documentation.
2229 2007-07-13 Kieran Mansley
2230 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2231 out of sequence processing of received packets
2233 2007-07-03 Simon Goldschmidt
2234 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2235 assumption is made that this pbuf is in one piece (i.e. not chained). These
2236 assumptions clash with the possibility of converting to fully pool-based
2237 pbuf implementations, where PBUF_RAM pbufs might be chained.
2239 2007-07-03 Simon Goldschmidt
2240 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2241 when closing tcp netconns: removed conn->sem, less context switches when
2242 closing, both netconn_close and netconn_delete should safely close tcp
2245 2007-07-02 Simon Goldschmidt
2246 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2247 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2248 to cache ARP table indices with each pcb instead of single-entry cache for
2251 2007-07-02 Simon Goldschmidt
2252 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2253 warnings when assigning to smaller types.
2255 2007-06-28 Simon Goldschmidt
2256 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2258 2007-06-28 Simon Goldschmidt
2259 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2260 a segment contained chained pbufs)
2262 2007-06-28 Frédéric Bernon
2263 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2264 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2265 possible to define this macro in your own lwipopts.h to always use C library's
2266 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2268 2007-06-28 Frédéric Bernon
2269 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2270 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2271 in api_lib/api_msg (use pointers and not type with table, etc...)
2273 2007-06-26 Simon Goldschmidt
2274 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2276 2007-06-25 Simon Goldschmidt
2277 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2278 for udp packets with no matching pcb.
2280 2007-06-25 Simon Goldschmidt
2281 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2282 could get udp input packets if the remote side matched.
2284 2007-06-13 Simon Goldschmidt
2285 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2286 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2288 2007-06-13 Simon Goldschmidt
2289 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2290 -> netconn_new_..() does not allocate a new connection for unsupported
2293 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2294 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2295 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2297 2007-06-13 Frédéric Bernon, Matthias Weisser
2298 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2299 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2300 some macro names collision with some OS macros.
2302 2007-06-11 Simon Goldschmidt
2303 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2304 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2305 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2308 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2309 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2310 where TCP flags wasn't initialized in tcp_keepalive.
2312 2007-06-03 Simon Goldschmidt
2313 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2314 registered, p->payload was modified without modifying p->len if sending
2315 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2317 2007-06-03 Simon Goldschmidt
2318 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2319 re-used the input pbuf even if that didn't have enough space to include the
2320 link headers. Now the space is tested and a new pbuf is allocated for the
2321 echo response packet if the echo request pbuf isn't big enough.
2323 2007-06-01 Simon Goldschmidt
2324 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2326 2007-05-23 Frédéric Bernon
2327 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2328 allocated by do_listen if success) and netconn_accept errors handling. In
2329 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2330 by ASSERT, except for netconn_delete.
2332 2007-05-23 Frédéric Bernon
2333 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2334 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2335 directly close the recvmbox).
2337 2007-05-22 Simon Goldschmidt
2338 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2339 bound but unconnected (and non-listening) tcp_pcbs.
2341 2007-05-22 Frédéric Bernon
2342 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2343 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2344 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2345 like "sys_timeout" in their application threads.
2347 2007-05-22 Frédéric Bernon
2348 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2349 which parameters are used by which do_xxx function, and to avoid "misusing"
2350 parameters (patch #5938).
2352 2007-05-22 Simon Goldschmidt
2353 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2354 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2355 is only 8 bits wide. This affects the api, as there, the protocol was
2358 2007-05-18 Simon Goldschmidt
2359 * memp.c: addition to patch #5913: smaller pointer was returned but
2360 memp_memory was the same size -> did not save memory.
2362 2007-05-16 Simon Goldschmidt
2363 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2366 2007-05-16 Simon Goldschmidt
2367 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2368 as the one of the netif used for sending to prevent sending from old
2369 addresses after a netif address gets changed (partly fixes bug #3168).
2371 2007-05-16 Frédéric Bernon
2372 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2373 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2374 tcpip_init) because we have to be sure that network interfaces are already
2375 added (mac filter is updated only in igmp_init for the moment).
2377 2007-05-16 Simon Goldschmidt
2378 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2379 into sys_arch_sem_wait calls to prevent timers from running while waiting
2380 for the heap. This fixes bug #19167.
2382 2007-05-13 Simon Goldschmidt
2383 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2384 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2387 2007-05-07 Simon Goldschmidt
2388 * mem.c: Another attempt to fix bug #17922.
2390 2007-05-04 Simon Goldschmidt
2391 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2392 implementation so that it can be reused (don't allocate the target
2393 pbuf inside pbuf_copy()).
2395 2007-05-04 Simon Goldschmidt
2396 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2397 to save a little RAM (next pointer of memp is not used while not in pool).
2400 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2403 2007-04-23 Simon Goldschmidt
2404 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2405 in NULL reference for incoming TCP packets". Loopif has to be configured
2406 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2407 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2408 putting packets on a list that is fed to the stack by calling loopif_poll()
2409 (single-thread / NO_SYS / polling environment where e.g.
2410 netif->input() = ip_input).
2412 2007-04-17 Jonathan Larmour
2413 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2414 the difference between two u16_t's.
2415 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2416 MEMP_NUM_NETCONN in sockets.c right now.
2418 2007-04-12 Jonathan Larmour
2419 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2421 2007-04-12 Kieran Mansley
2422 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2423 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2425 2007-04-11 Simon Goldschmidt
2426 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2427 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2428 pbuf.c: removed functions no needed any more (by etharp).
2430 2007-04-11 Kieran Mansley
2431 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2432 "Constant is long" warnings with 16bit compilers. Contributed by
2433 avatar@mmlab.cse.yzu.edu.tw
2435 2007-04-05 Frédéric Bernon, Jonathan Larmour
2436 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2437 the mailbox is active". Now, the post is only done during a connect, and do_send,
2438 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2440 2007-04-03 Frédéric Bernon
2441 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2442 packets. See patch #5834.
2444 2007-03-30 Frédéric Bernon
2445 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2446 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2448 2007-03-30 Frédéric Bernon
2449 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2450 others environment defines (these were too "generic").
2452 2007-03-28 Frédéric Bernon
2453 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2454 result and can cause a crash. lwip_send now check netbuf_ref result.
2456 2007-03-28 Simon Goldschmidt
2457 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2458 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2459 defined. This is the way it should have been already (looking at
2462 2007-03-28 Kieran Mansley
2463 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2464 IP and TCP headers *and* physical link headers
2466 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2467 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2468 to send some garbage. It is not a definitive solution, but the patch does solve
2469 the problem for most cases.
2471 2007-03-22 Frédéric Bernon
2472 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2474 2007-03-22 Frédéric Bernon
2475 * api_lib.c: somes resources couldn't be freed if there was errors during
2476 netconn_new_with_proto_and_callback.
2478 2007-03-22 Frédéric Bernon
2479 * ethernetif.c: update netif->input calls to check return value. In older ports,
2480 it's a good idea to upgrade them, even if before, there could be another problem
2481 (access to an uninitialized mailbox).
2483 2007-03-21 Simon Goldschmidt
2484 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2485 by casting to unsigned).
2487 2007-03-21 Frédéric Bernon
2488 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2489 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2490 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2491 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2492 faster and more reliable communication between api_lib and tcpip.
2494 2007-03-21 Frédéric Bernon
2495 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2497 2007-03-21 Frédéric Bernon
2498 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2500 2007-03-21 Kieran Mansley
2501 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2504 2007-03-21 Kieran Mansley
2505 * Fix all uses of pbuf_header to check the return value. In some
2506 cases just assert if it fails as I'm not sure how to fix them, but
2507 this is no worse than before when they would carry on regardless
2510 2007-03-21 Kieran Mansley
2511 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2512 comment out missing header include in icmp.c
2514 2007-03-20 Frédéric Bernon
2515 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2516 synchronized with memp.h.
2518 2007-03-20 Frédéric Bernon
2519 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2520 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2521 network interfaces. Also fix a compiler warning.
2523 2007-03-20 Kieran Mansley
2524 * udp.c: Only try and use pbuf_header() to make space for headers if
2525 not a ROM or REF pbuf.
2527 2007-03-19 Frédéric Bernon
2528 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2531 2007-03-19 Frédéric Bernon
2532 * Remove unimplemented "memp_realloc" function from memp.h.
2534 2007-03-11 Simon Goldschmidt
2535 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2538 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2539 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2540 (missing `const' qualifier in socket functions), to get more compatible to
2541 standard POSIX sockets.
2543 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2544 * sockets.c: Add asserts inside bind, connect and sendto to check input
2545 parameters. Remove excessive set_errno() calls after get_socket(), because
2546 errno is set inside of get_socket(). Move last sock_set_errno() inside
2549 2007-03-09 Simon Goldschmidt
2550 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2551 was allocated too small.
2553 2007-03-06 Simon Goldschmidt
2554 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2555 the stack from concurrent access.
2557 2007-03-06 Frédéric Bernon, Dmitry Potapov
2558 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2559 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2561 2007-03-06 Simon Goldschmidt
2562 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2563 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2565 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2566 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2567 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2568 Allow to do ARP processing for incoming packets inside tcpip_thread
2569 (protecting ARP layer against concurrent access). You can also disable
2570 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2571 Older ports have to use tcpip_ethinput.
2573 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2574 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2575 from pointer target type"
2577 2007-03-05 Frédéric Bernon
2578 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2579 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2581 2007-03-04 Frédéric Bernon
2582 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2585 2007-03-04 Frédéric Bernon
2586 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2588 The api_msg struct stay on the stack (not moved to netconn struct).
2590 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2591 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2592 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2593 Also fixed cast warning in pbuf_alloc()
2595 2007-03-04 Simon Goldschmidt
2596 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2597 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2599 2007-03-03 Frédéric Bernon
2600 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2601 It is static, and never used in udp.c except udp_init().
2603 2007-03-02 Simon Goldschmidt
2604 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2605 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2606 initialized before tcpip_thread is running (e.g. before OS is started)
2608 2007-03-02 Frédéric Bernon
2609 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2612 2007-02-28 Kieran Mansley
2613 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2614 outside the region of the pbuf by pbuf_header()
2616 2007-02-28 Kieran Mansley
2617 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2618 when supplied timeout is also non-zero
2622 2006-12-05 Leon Woestenberg
2623 * CHANGELOG: Mention STABLE-1.2.0 release.
2627 2006-12-01 Christiaan Simons
2628 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2629 Note this is a workaround. Currently I have no other options left.
2631 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2632 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2633 to include/lwip/opt.h.
2634 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2635 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2636 * opt.h: Add above new options.
2638 2006-08-18 Christiaan Simons
2639 * tcp_{in,out}.c: added SNMP counters.
2640 * ipv4/ip.c: added SNMP counters.
2641 * ipv4/ip_frag.c: added SNMP counters.
2643 2006-08-08 Christiaan Simons
2644 * etharp.{c,h}: added etharp_find_addr() to read
2645 (stable) ethernet/IP address pair from ARP table
2647 2006-07-14 Christiaan Simons
2648 * mib_structs.c: added
2649 * include/lwip/snmp_structs.h: added
2650 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2652 2006-07-06 Christiaan Simons
2653 * snmp/asn1_{enc,dec}.c added
2655 * snmp/msg_{in,out}.c added
2656 * include/lwip/snmp_asn1.h added
2657 * include/lwip/snmp_msg.h added
2658 * doc/snmp_agent.txt added
2660 2006-03-29 Christiaan Simons
2661 * inet.c, inet.h: Added platform byteswap support.
2662 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2663 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2667 2006-11-30 Christiaan Simons
2668 * dhcp.c: Fixed false triggers of request_timeout.
2670 2006-11-28 Christiaan Simons
2671 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2673 2006-10-11 Christiaan Simons
2674 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2675 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2676 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2677 identifier from 170 to 136 (bug #17574).
2679 2006-10-10 Christiaan Simons
2680 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2682 2006-08-17 Christiaan Simons
2683 * udp.c: Fixed bug #17200, added check for broadcast
2684 destinations for PCBs bound to a unicast address.
2686 2006-08-07 Christiaan Simons
2687 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2689 2006-06-27 Christiaan Simons
2690 * api_msg.c: Applied patch for cold case (bug #11135).
2691 In accept_function() ensure newconn->callback is always initialized.
2693 2006-06-15 Christiaan Simons
2694 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2695 facilitate printing of mem_size_t and u16_t statistics.
2697 2006-06-14 Christiaan Simons
2698 * api_msg.c: Applied patch #5146 to handle allocation failures
2699 in accept() by Kevin Lawson.
2701 2006-05-26 Christiaan Simons
2702 * api_lib.c: Removed conn->sem creation and destruction
2703 from netconn_write() and added sys_sem_new to netconn_new_*.
2707 2006-03-03 Christiaan Simons
2708 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2709 access and added pbuf_alloc() return value checks.
2711 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2712 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2713 now handled by the checksum routine properly.
2715 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2716 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2717 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2719 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2720 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2721 submitted by Mitrani Hiroshi.
2723 2005-12-15 Christiaan Simons
2724 * inet.c: Disabled the added summing routine to preserve code space.
2726 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2727 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2728 Added Curt McDowell's optimized checksumming routine for future
2729 inclusion. Need to create test case for unaliged, aligned, odd,
2730 even length combination of cases on various endianess machines.
2732 2005-12-09 Christiaan Simons
2733 * inet.c: Rewrote standard checksum routine in proper portable C.
2735 2005-11-25 Christiaan Simons
2736 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2737 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2738 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2740 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2741 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2742 routine by Peter Jolasson.
2743 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2745 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2746 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2747 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2749 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2750 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2752 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2753 * udp.c: UDP pcb->recv() was called even when it was NULL.
2757 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2758 * etharp.*: Disabled multiple packets on the ARP queue.
2759 This clashes with TCP queueing.
2761 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2762 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2763 Halved the ARP period, doubled the period counts.
2764 ETHARP_MAX_PENDING now should be at least 2. This prevents
2765 the counter from reaching 0 right away (which would allow
2766 too little time for ARP responses to be received).
2768 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2769 * dhcp.c: Decline messages were not multicast but unicast.
2770 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2771 Do not try hard to insert arbitrary packet's source address,
2772 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2773 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2774 querying an address will see it appear in the cache (DHCP could
2775 suffer from this when a server invalidly gave an in-use address.)
2776 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2777 comparing network addresses (identifiers), not the network masks
2779 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2780 IP address actually belongs to the network of the given interface.
2782 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2783 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2787 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2788 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2789 even if one is already pending, if the rcv_wnd is above a threshold
2790 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2791 delayed ACK in order to open the window if the stack is only receiving data.
2793 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2794 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2796 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2797 * etharp.c: Make sure the first pbuf queued on an ARP entry
2798 is properly ref counted.
2800 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2801 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2802 warnings about comparison.
2803 * pbuf.c: Stopped compiler complaining of empty if statement
2804 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2805 * tcp.c: Stopped compiler complaining of empty if statement
2806 when LWIP_DEBUGF() empty.
2807 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2808 * inet.c: Added a couple of casts to quiet the compiler.
2809 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2811 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2812 * inet.c: Made data types consistent in inet_ntoa().
2813 Added casts for return values of checksum routines, to pacify compiler.
2814 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2815 Small corrections to some debugging statements, to pacify compiler.
2817 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2818 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2819 * ethernetif.c Updated low_level_output() to match prototype for
2820 netif->linkoutput and changed low_level_input() similarly for consistency.
2821 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2822 of raw_recv() in raw.h and so avoid compiler error.
2823 * sockets.c: Added trivial (int) cast to keep compiler happier.
2824 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2830 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2831 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2832 your cc.h file defines this either 1 or 0. If non-defined,
2834 * .c: Added <string.h> and <errno.h> includes where used.
2835 * etharp.c: Made some array indices unsigned.
2837 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2838 * netif.*: Added netif_set_up()/down().
2839 * dhcp.c: Changes to restart program flow.
2841 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2842 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2843 single-pass lookup for different candidates. Should exploit locality.
2845 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2846 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2847 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2848 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2849 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2853 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2854 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2855 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2856 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2857 is to prefix the 14-bit Ethernet headers with two padding bytes.
2859 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2860 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2861 * etharp.c: Fixed the case where the packet that initiates the ARP request
2862 is not queued, and gets lost. Fixed the case where the packets destination
2863 address is already known; we now always queue the packet and perform an ARP
2870 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2871 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2872 * Fixed two possible NULL references in rare cases.
2878 * Fixed DHCP which did not include the IP address in DECLINE messages.
2882 * etharp.c has been hauled over a bit.
2888 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2889 * Packets sent from ARP queue had invalid source hardware address.
2893 * Pass-by ARP requests do now update the cache.
2897 * No longer dependent on ctype.h.
2898 * New socket options.
2899 * Raw IP pcb support.
2905 * Some debug formatters and casts fixed.
2906 * Numereous fixes in PPP.
2910 * DEBUGF now is LWIP_DEBUGF
2911 * pbuf_dechain() has been re-enabled.
2912 * Mentioned the changed use of CVS branches in README.
2918 * Fixed pool pbuf memory leak in pbuf_alloc().
2919 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2920 Reported by Savin Zlobec.
2922 * PBUF_POOL chains had their tot_len field not set for non-first
2923 pbufs. Fixed in pbuf_alloc().
2927 * Added PPP stack contributed by Marc Boucher
2931 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2933 * ARP queueuing now queues the latest packet instead of the first.
2934 This is the RFC recommended behaviour, but can be overridden in
2941 * TCP has been fixed to deal with the new use of the pbuf->ref
2944 * DHCP dhcp_inform() crash bug fixed.
2948 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2949 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2950 Implemented by David Haas.
2956 * The packet buffer implementation has been enhanced to support
2957 zero-copy and copy-on-demand for packet buffers which have their
2958 payloads in application-managed memory.
2959 Implemented by David Haas.
2961 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2962 if an outgoing packet can be directly sent on the link, or perform
2963 a copy-on-demand when necessary.
2965 The application can safely assume the packet is sent, and the RAM
2966 is available to the application directly after calling udp_send()
2967 or similar function.
2971 * ARP_QUEUEING should now correctly work for all cases, including
2973 Implemented by Leon Woestenberg.
2977 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2978 to a '0.0.0.0' IP address.
2980 * The packet buffer implementation is changed. The pbuf->ref counter
2981 meaning has changed, and several pbuf functions have been
2982 adapted accordingly.
2984 * netif drivers have to be changed to set the hardware address length field
2985 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2986 See the contrib/ports/c16x cs8900 driver as a driver example.
2988 * netif's have a dhcp field that must be initialized to NULL by the driver.
2989 See the contrib/ports/c16x cs8900 driver as a driver example.
2991 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2992 logged in CVS but have not been explained here.
2994 (0.5.3) Changes since version 0.5.2
2998 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2999 threads because it wasn't protected by semaphores.
3003 * struct ip_addr now packed.
3005 * The name of the time variable in arp.c has been changed to ctime
3006 to avoid conflicts with the time() function.
3008 (0.5.2) Changes since version 0.5.1
3012 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3016 * A bug in tcp_parseopt() could cause the stack to hang because of a
3017 malformed TCP option.
3019 * The address of new connections in the accept() function in the BSD
3020 socket library was not handled correctly.
3022 * pbuf_dechain() did not update the ->tot_len field of the tail.
3024 * Aborted TCP connections were not handled correctly in all
3029 * All protocol header structs are now packed.
3031 * The ->len field in the tcp_seg structure now counts the actual
3032 amount of data, and does not add one for SYN and FIN segments.
3034 (0.5.1) Changes since version 0.5.0
3038 * Possible to run as a user process under Linux.
3040 * Preliminary support for cross platform packed structs.
3042 * ARP timer now implemented.
3046 * TCP output queue length was badly initialized when opening
3049 * TCP delayed ACKs were not sent correctly.
3051 * Explicit initialization of BSS segment variables.
3053 * read() in BSD socket library could drop data.
3055 * Problems with memory alignment.
3057 * Situations when all TCP buffers were used could lead to
3060 * TCP MSS option wasn't parsed correctly.
3062 * Problems with UDP checksum calculation.
3064 * IP multicast address tests had endianess problems.
3066 * ARP requests had wrong destination hardware address.
3070 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3072 * A ->linkoutput() member was added to struct netif.
3074 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3076 * ntoh* macros are now null definitions for big endian CPUs.
3078 (0.5.0) Changes since version 0.4.2
3082 * Redesigned operating system emulation layer to make porting easier.
3084 * Better control over TCP output buffers.
3086 * Documenation added.
3090 * Locking issues in buffer management.
3092 * Bugfixes in the sequential API.
3094 * IP forwarding could cause memory leakage. This has been fixed.
3098 * Directory structure somewhat changed; the core/ tree has been
3101 (0.4.2) Changes since version 0.4.1
3105 * Experimental ARP implementation added.
3107 * Skeleton Ethernet driver added.
3109 * Experimental BSD socket API library added.
3113 * In very intense situations, memory leakage could occur. This has
3118 * Variables named "data" and "code" have been renamed in order to
3119 avoid name conflicts in certain compilers.
3121 * Variable++ have in appliciable cases been translated to ++variable
3122 since some compilers generate better code in the latter case.
3124 (0.4.1) Changes since version 0.4
3128 * TCP: Connection attempts time out earlier than data
3129 transmissions. Nagle algorithm implemented. Push flag set on the
3130 last segment in a burst.
3132 * UDP: experimental support for UDP-Lite extensions.
3136 * TCP: out of order segments were in some cases handled incorrectly,
3137 and this has now been fixed. Delayed acknowledgements was broken
3138 in 0.4, has now been fixed. Binding to an address that is in use
3139 now results in an error. Reset connections sometimes hung an
3140 application; this has been fixed.
3142 * Checksum calculation sometimes failed for chained pbufs with odd
3143 lengths. This has been fixed.
3145 * API: a lot of bug fixes in the API. The UDP API has been improved
3146 and tested. Error reporting and handling has been
3147 improved. Logical flaws and race conditions for incoming TCP
3148 connections has been found and removed.
3150 * Memory manager: alignment issues. Reallocating memory sometimes
3151 failed, this has been fixed.
3153 * Generic library: bcopy was flawed and has been fixed.
3157 * API: all datatypes has been changed from generic ones such as
3158 ints, to specified ones such as u16_t. Functions that return
3159 errors now have the correct type (err_t).
3161 * General: A lot of code cleaned up and debugging code removed. Many
3162 portability issues have been fixed.
3164 * The license was changed; the advertising clause was removed.
3168 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3169 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3172 (0.4) Changes since version 0.3.1
3174 * Memory management has been radically changed; instead of
3175 allocating memory from a shared heap, memory for objects that are
3176 rapidly allocated and deallocated is now kept in pools. Allocation
3177 and deallocation from those memory pools is very fast. The shared
3178 heap is still present but is used less frequently.
3180 * The memory, memory pool, and packet buffer subsystems now support
3181 4-, 2-, or 1-byte alignment.
3183 * "Out of memory" situations are handled in a more robust way.
3185 * Stack usage has been reduced.
3187 * Easier configuration of lwIP parameters such as memory usage,
3188 TTLs, statistics gathering, etc. All configuration parameters are
3189 now kept in a single header file "lwipopts.h".
3191 * The directory structure has been changed slightly so that all
3192 architecture specific files are kept under the src/arch
3195 * Error propagation has been improved, both in the protocol modules
3198 * The code for the RTXC architecture has been implemented, tested
3201 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3202 the Internet checksum modules.
3204 * Bugs related to porting between a 32-bit and a 16-bit architecture
3205 have been found and corrected.
3207 * The license has been changed slightly to conform more with the
3208 original BSD license, including the advertisement clause.
3210 (0.3.1) Changes since version 0.3
3212 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3213 RAM never returned the RAM when the pbuf was deallocated.
3215 * TCP congestion control, window updates and retransmissions did not
3216 work correctly. This has now been fixed.
3218 * Bugfixes in the API.
3220 (0.3) Changes since version 0.2
3222 * New and improved directory structure. All include files are now
3223 kept in a dedicated include/ directory.
3225 * The API now has proper error handling. A new function,
3226 netconn_err(), now returns an error code for the connection in
3229 * Improvements in the memory management subsystem. The system now
3230 keeps a pointer to the lowest free memory block. A new function,
3231 mem_malloc2() tries to allocate memory once, and if it fails tries
3232 to free some memory and retry the allocation.
3234 * Much testing has been done with limited memory
3235 configurations. lwIP now does a better job when overloaded.
3237 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3239 * Many bugfixes in the TCP code:
3241 - Fixed a bug in tcp_close().
3243 - The TCP receive window was incorrectly closed when out of
3244 sequence segments was received. This has been fixed.
3246 - Connections are now timed-out of the FIN-WAIT-2 state.
3248 - The initial congestion window could in some cases be too
3249 large. This has been fixed.
3251 - The retransmission queue could in some cases be screwed up. This
3254 - TCP RST flag now handled correctly.
3256 - Out of sequence data was in some cases never delivered to the
3257 application. This has been fixed.
3259 - Retransmitted segments now contain the correct acknowledgment
3260 number and advertised window.
3262 - TCP retransmission timeout backoffs are not correctly computed
3263 (ala BSD). After a number of retransmissions, TCP now gives up
3266 * TCP connections now are kept on three lists, one for active
3267 connections, one for listening connections, and one for
3268 connections that are in TIME-WAIT. This greatly speeds up the fast
3269 timeout processing for sending delayed ACKs.
3271 * TCP now provides proper feedback to the application when a
3272 connection has been successfully set up.
3274 * More comments have been added to the code. The code has also been
3275 somewhat cleaned up.
3277 (0.2) Initial public release.