5 * [Enter new changes just after this line - do not remove this line]
9 2011-09-27: Simon Goldschmidt
10 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
11 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
13 2011-09-21: Simon Goldschmidt
14 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
15 send (TCP only, bug #33820)
17 2011-09-21: Simon Goldschmidt
18 * init.c: Converted runtime-sanity-checks into compile-time checks that can
19 be disabled (since runtime checks can often not be seen on embedded targets)
21 2011-09-11: Simon Goldschmidt
22 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
23 to get a clear separation of which functions an application or port may use
26 2011-09-11: Simon Goldschmidt
27 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
28 initial local TCP/UDP ports (so that different port ranges are used after
29 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
31 2011-09-03: Simon Goldschmidt
32 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
34 2011-08-24: Simon Goldschmidt
35 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
37 2011-07-26: Simon Goldschmidt
38 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
39 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
41 2011-07-21: Simon Goldschmidt (patch by hanhui)
42 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
43 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
44 Also added code to allow ip_forward() to forward non-broadcast packets to
45 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
47 2011-07-21: Simon Goldschmidt
48 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
49 ioctl/FIONREAD return the size of the next pending datagram.
51 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
52 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
55 2011-05-25: Simon Goldschmidt
56 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
57 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
58 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
59 code so that the code is more readable.
61 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
62 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
63 Ivan! (this is work in progress: we're just post release anyway :-)
65 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
66 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
72 2011-10-13: Simon Goldschmidt
73 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
75 2011-10-13: Simon Goldschmidt
76 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
77 used and not all protocols are enabled
79 2011-10-12: Simon Goldschmidt
80 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
82 2011-10-09: Simon Goldschmidt
83 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
84 byte value when pcb->unacked != NULL
86 2011-10-09: Simon Goldschmidt
87 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
89 2011-09-27: Simon Goldschmidt
90 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
92 2011-09-27: Simon Goldschmidt
93 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
95 2011-09-27: Simon Goldschmidt
96 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
98 2011-09-24: Simon Goldschmidt
99 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
101 2011-09-23: Simon Goldschmidt
102 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
103 the last packet including FIN can lose data
105 2011-09-22: Simon Goldschmidt
106 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
109 2011-09-21: Simon Goldschmidt
110 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
113 2011-09-20: Simon Goldschmidt
114 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
116 2011-09-11: Simon Goldschmidt
117 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
120 2011-09-09: Simon Goldschmidt
121 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
124 2011-09-03: Simon Goldschmidt
125 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
126 is aggregated and sent to application
128 2011-09-01: Simon Goldschmidt
129 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
132 2011-09-01: Simon Goldschmidt
133 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
135 2011-08-24: Simon Goldschmidt
136 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
138 2011-08-24: Simon Goldschmidt
139 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
140 accept() on UDP connections
142 2011-08-24: Simon Goldschmidt
143 * sockets.h: fixed bug #34057 socklen_t should be a typedef
145 2011-08-24: Simon Goldschmidt
146 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
148 2011-08-24: Simon Goldschmidt
149 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
151 2011-08-24: Simon Goldschmidt
152 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
154 2011-08-22: Simon Goldschmidt
155 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
156 merely prevents nagle from not transmitting fast after closing.)
158 2011-07-22: Simon Goldschmidt
159 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
160 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
161 lwip_send() sends as much as possible for non-blocking sockets
163 2011-07-22: Simon Goldschmidt
164 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
165 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
166 at regular intervals from main level.
168 2011-07-21: Simon Goldschmidt
169 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
170 sending an ARP request when an ARP entry is used in the last minute before
173 2011-07-04: Simon Goldschmidt
174 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
176 2011-06-26: Simon Goldschmidt
177 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
178 updating its documentation only.
180 2011-06-26: Simon Goldschmidt
181 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
184 2011-06-26: Simon Goldschmidt
185 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
193 2011-03-27: Simon Goldschmidt
194 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
195 calculate it in tcp_zero_window_probe (the only place where it was used).
197 2010-11-21: Simon Goldschmidt
198 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
201 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
202 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
203 IP_MULTICAST_LOOP at socket- and raw-API level.
205 2010-06-16: Simon Goldschmidt
206 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
207 link-layer-addressed UDP traffic to be received while a netif is down (just
208 like DHCP during configuration)
210 2010-05-22: Simon Goldschmidt
211 * many many files: bug #27352: removed packing from ip_addr_t, the packed
212 version is now only used in protocol headers. Added global storage for
213 current src/dest IP address while in input functions.
215 2010-05-16: Simon Goldschmidt
216 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
217 calculation (and use them throughout the stack where applicable)
219 2010-05-16: Simon Goldschmidt
220 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
221 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
223 2010-05-16: Simon Goldschmidt
224 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
225 MEMP pool instead of the heap
227 2010-05-13: Simon Goldschmidt
228 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
229 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
230 packets to more than one pcb.
232 2010-05-02: Simon Goldschmidt
233 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
234 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
236 2010-04-30: Simon Goldschmidt
237 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
238 take a precalculated checksum, added pbuf_fill_chksum() to copy data
239 into a pbuf and at the same time calculating the checksum for that data
241 2010-04-29: Simon Goldschmidt
242 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
243 2-byte-aligned IP addresses and MAC addresses
245 2010-04-28: Patch by Bill Auerbach
246 * ip.c: Inline generating IP checksum to save a function call
248 2010-04-14: Simon Goldschmidt
249 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
250 tcpip_thread processes messages or timeouts to implement a watchdog.
252 2010-03-28: Simon Goldschmidt
253 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
254 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
256 2010-03-27: Simon Goldschmidt
257 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
258 etharp_query to prevent unnecessary function calls (inspired by
261 2010-03-20: Simon Goldschmidt
262 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
263 since the linker cannot do this automatically to save space.
265 2010-03-20: Simon Goldschmidt
266 * opt.h, etharp.c/.h: Added support for static ARP table entries
268 2010-03-14: Simon Goldschmidt
269 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
270 when creating TCP segments, not when (re-)transmitting them.
272 2010-03-07: Simon Goldschmidt
273 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
274 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
275 This should speed up receiving data on sockets as the select code in
276 event_callback is only executed when select is waiting.
278 2010-03-06: Simon Goldschmidt
279 * tcp_out.c: task #7013 (Create option to have all packets delivered to
280 netif->output in one piece): Always copy to try to create single pbufs
283 2010-03-06: Simon Goldschmidt
284 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
285 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
286 for tcp netconns to receive pbufs, not netbufs; use that function
289 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
290 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
291 Work on tcp_enqueue: Don't waste memory when chaining segments,
292 added option TCP_OVERSIZE to prevent creating many small pbufs when
293 calling tcp_write with many small blocks of data. Instead, pbufs are
294 allocated larger than needed and the space is used for later calls to
297 2010-02-21: Simon Goldschmidt
298 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
301 2010-02-21: Simon Goldschmidt
302 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
303 implementation of tcp to make API usage cleare to application programmers
305 2010-02-14: Simon Goldschmidt/Stephane Lesage
306 * ip_addr.h: Improved some defines working on ip addresses, added faster
307 macro to copy addresses that cannot be NULL
309 2010-02-13: Simon Goldschmidt
310 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
311 blocking send operation)
313 2010-02-12: Simon Goldschmidt
314 * sockets.c/.h: Added a minimal version of posix fctl() to have a
315 standardised way to set O_NONBLOCK for nonblocking sockets.
317 2010-02-12: Simon Goldschmidt
318 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
319 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
320 and dhcp work with user-allocated structs instead of callin mem_malloc
322 2010-02-12: Simon Goldschmidt/Jeff Barber
323 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
324 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
326 2010-02-12: Simon Goldschmidt
327 * sys layer: task #10139 (Prefer statically allocated memory): converted
328 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
329 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
330 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
331 to let sys.h use binary semaphores instead of mutexes - as before)
333 2010-02-09: Simon Goldschmidt (Simon Kallweit)
334 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
335 (Restart system timeout handling)
337 2010-02-09: Simon Goldschmidt
338 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
339 netif.c) - loopif does not have to be created by the port any more,
340 just define LWIP_HAVE_LOOPIF to 1.
342 2010-02-08: Simon Goldschmidt
343 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
344 inet_ntoa_r/ipaddr_ntoa_r
346 2010-02-08: Simon Goldschmidt
347 * netif.h: Added netif_s/get_igmp_mac_filter() macros
349 2010-02-05: Simon Goldschmidt
350 * netif.h: Added function-like macros to get/set the hostname on a netif
352 2010-02-04: Simon Goldschmidt
353 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
354 make changing the actual implementation behind the typedef easier.
356 2010-02-01: Simon Goldschmidt
357 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
358 for allocating memory when getaddrinfo() is called.
360 2010-01-31: Simon Goldschmidt
361 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
362 them once instead of parsing for every option. This also removes
363 the need for mem_malloc from dhcp_recv and makes it possible to
364 correctly retrieve the BOOTP file.
366 2010-01-30: simon Goldschmidt
367 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
370 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
371 * api.h, api_msg.c, sockets.c: Added except set support in select
374 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
375 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
376 Add non-blocking support for connect (partly from patch #6860),
377 plus many cleanups in socket & netconn API.
379 2010-01-27: Simon Goldschmidt
380 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
381 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
383 2010-01-26: Simon Goldschmidt
384 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
386 2010-01-14: Simon Goldschmidt
387 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
388 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
390 2010-01-13: Simon Goldschmidt
391 * mem.c: The heap now may be moved to user-defined memory by defining
392 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
393 (patch #6966 and bug #26133)
395 2010-01-10: Simon Goldschmidt (Bill Auerbach)
396 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
399 2010-01-10: Simon Goldschmidt
400 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
401 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
403 2009-12-31: Simon Goldschmidt
404 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
405 added timers.c/.h: Separated timer implementation from semaphore/mbox
406 implementation, moved timer implementation to timers.c/.h, timers are
407 now only called from tcpip_thread or by explicitly checking them.
410 2009-12-27: Simon Goldschmidt
411 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
412 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
417 2011-04-20: Simon Goldschmidt
418 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
420 2011-04-13: Simon Goldschmidt
421 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
422 using ports in the IANA private/dynamic range (49152 through 65535).
424 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
425 * etharp.h/.c: Fixed broken VLAN support.
427 2011-03-27: Simon Goldschmidt
428 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
429 pcbs) by checking if the pcb was bound (local_port != 0).
431 2011-03-27: Simon Goldschmidt
432 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
434 2011-03-27: Simon Goldschmidt
435 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
436 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
438 2011-03-27: Simon Goldschmidt
439 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
440 is present never times out) by starting retransmission timer before checking
443 2011-03-22: Simon Goldschmidt
444 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
445 calling sio_read_abort() if the file descriptor is valid.
447 2011-03-14: Simon Goldschmidt
448 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
449 more than once can render a socket useless) since it mainly involves changing
450 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
452 2011-03-13: Simon Goldschmidt
453 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
454 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
455 use EALRADY instead of -1
457 2011-03-13: Simon Goldschmidt
458 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
459 connection has been aborted by err_tcp (since this is not a normal closing
462 2011-03-13: Simon Goldschmidt
463 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
464 with pcb->state != CLOSED
466 2011-02-17: Simon Goldschmidt
467 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
470 2011-02-17: Simon Goldschmidt
471 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
473 2011-01-24: Simon Goldschmidt
474 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
476 2010-12-02: Simon Goldschmidt
477 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
479 2010-11-23: Simon Goldschmidt
480 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
481 LWIP_SO_RCVBUF and ioctl/FIONREAD.
483 2010-11-23: Simon Goldschmidt
484 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
485 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
487 2010-11-23: Simon Goldschmidt
488 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
489 refusing 'refused_data' again.
491 2010-11-22: Simon Goldschmidt
492 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
493 after a successful nonblocking connection.
495 2010-11-22: Simon Goldschmidt
496 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
497 must be sent link-local
499 2010-11-22: Simon Goldschmidt
500 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
503 2010-11-20: Simon Goldschmidt
504 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
506 2010-11-20: Simon Goldschmidt
507 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
508 resemble other stacks.
510 2010-11-20: Simon Goldschmidt
511 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
512 no-copy TCP writes will never succeed.
514 2010-11-20: Simon Goldschmidt
515 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
516 not match documentation: return ERR_ARG instead of ERR_VAL if not
517 initialized or wrong argument.
519 2010-10-20: Simon Goldschmidt
520 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
522 2010-10-05: Simon Goldschmidt
523 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
524 replugging the network cable after an AutoIP address was assigned.
526 2010-08-10: Simon Goldschmidt
527 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
529 2010-08-03: Simon Goldschmidt
530 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
532 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
533 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
534 endian architectures)
536 2010-07-28: Simon Goldschmidt
537 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
540 2010-07-27: Simon Goldschmidt
541 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
542 harm but never did anything
544 2010-07-21: Simon Goldschmidt
545 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
548 2010-07-16: Kieran Mansley
549 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
551 2010-07-10: Simon Goldschmidt
552 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
554 2010-06-30: Simon Goldschmidt
555 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
558 2010-06-28: Kieran Mansley
559 * timers.c remove unportable printing of C function pointers
561 2010-06-24: Simon Goldschmidt
562 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
563 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
565 2010-06-24: Simon Goldschmidt
566 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
567 implemented shutdown at socket level.
569 2010-06-21: Simon Goldschmidt
570 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
571 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
572 custom pbufs that reference other (original) pbufs. Additionally set
573 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
575 2010-06-15: Simon Goldschmidt
576 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
578 2010-06-14: Simon Goldschmidt
579 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
581 2010-06-12: Simon Goldschmidt
582 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
585 2010-05-17: Simon Goldschmidt
586 * netdb.c: Correctly NULL-terminate h_addr_list
588 2010-05-16: Simon Goldschmidt
589 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
590 "symbol already defined" i.e. when linking to winsock
592 2010-05-05: Simon Goldschmidt
593 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
596 2010-04-21: Simon Goldschmidt
597 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
600 2010-03-28: Luca Ceresoli
601 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
603 2010-03-27: Luca Ceresoli
604 * mib2.c: patch #7130: remove meaningless const qualifiers
606 2010-03-26: Simon Goldschmidt
607 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
609 2010-03-26: Simon Goldschmidt
610 * various files: Fixed compiling with different options disabled (TCP/UDP),
611 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
613 2010-03-25: Simon Goldschmidt
614 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
616 2010-03-25: Simon Goldschmidt
617 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
618 overrunning our rcv_wnd in ooseq case.
620 2010-03-22: Simon Goldschmidt
621 * tcp.c: tcp_listen() did not copy the pcb's prio.
623 2010-03-19: Simon Goldschmidt
624 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
626 2010-03-14: Simon Goldschmidt
627 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
628 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
629 and basing PBUF_LINK_HLEN on it.
631 2010-03-08: Simon Goldschmidt
632 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
633 when assiging routable address): when checking incoming packets and
634 aborting existing connection on address change, filter out link-local
637 2010-03-06: Simon Goldschmidt
638 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
640 2010-03-06: Simon Goldschmidt
641 * ipv4/ip.c: Don't try to forward link-local addresses
643 2010-03-06: Simon Goldschmidt
644 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
647 2010-03-05: Simon Goldschmidt
648 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
651 2010-03-05: Simon Goldschmidt
652 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
653 into multiple calls to tcp_write.
655 2010-02-21: Simon Goldschmidt
656 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
657 the implementation of DNS_USES_STATIC_BUF==1)
659 2010-02-20: Simon Goldschmidt
660 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
661 close() vs. shutdown(). Now the application does not get any more
662 recv callbacks after calling tcp_close(). Added tcp_shutdown().
664 2010-02-19: Simon Goldschmidt
665 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
666 confusion with realloc()
668 2010-02-15: Simon Goldschmidt/Stephane Lesage
669 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
672 2010-02-14: Simon Goldschmidt
673 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
674 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
675 admin-status of a netif are up
677 2010-02-14: Simon Goldschmidt
678 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
679 reception and is not really necessary
681 2010-02-14: Simon Goldschmidt
682 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
683 request was directed as us (RFC 826, Packet Reception), otherwise
684 only update existing entries; internalized some functions
686 2010-02-14: Simon Goldschmidt
687 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
688 disabled on netif used for PPPoE) by adding a new netif flag
689 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
690 device but prevents usage of ARP (so that ethernet_input can be used
693 2010-02-12: Simon Goldschmidt
694 * netif.c: netif_set_link_up/down: only do something if the link state
697 2010-02-12: Simon Goldschmidt/Stephane Lesage
698 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
701 2010-02-12: Simon Goldschmidt
702 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
704 2010-02-09: Simon Goldschmidt
705 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
706 (recv() makes receive window update for data that wasn't received by
709 2010-02-09: Simon Goldschmidt/Stephane Lesage
710 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
711 or any netconn_recv() error)
713 2010-02-09: Simon Goldschmidt
714 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
716 2010-02-09: Simon Goldschmidt
717 * netif.c: For loopback packets, adjust the stats- and snmp-counters
718 for the loopback netif.
720 2010-02-08: Simon Goldschmidt
721 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
722 since they are not used anywhere else.
724 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
725 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
726 (patch from bug #28798)
728 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
729 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
730 another bug when LWIP_RAND() returns zero.
732 2010-02-04: Simon Goldschmidt
733 * nearly every file: Use macros defined in ip_addr.h (some of them new)
734 to work with IP addresses (preparation for bug #27352 - Change ip_addr
735 from struct to typedef (u32_t) - and better code).
737 2010-01-31: Simon Goldschmidt
738 * netif.c: Don't call the link-callback from netif_set_up/down() since
739 this invalidly retriggers DHCP.
741 2010-01-29: Simon Goldschmidt
742 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
743 portability file inet.h and its contents from the stack: moved htonX-
744 functions to def.h (and the new def.c - they are not ipv4 dependent),
745 let inet.h depend on ip_addr.h and not the other way round.
746 This fixes bug #28732.
748 2010-01-28: Kieran Mansley
749 * tcp.c: Ensure ssthresh >= 2*MSS
751 2010-01-27: Simon Goldschmidt
752 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
753 callback can lead to accessing unallocated memory. As a consequence,
754 ERR_ABRT means the application has called tcp_abort()!
756 2010-01-25: Simon Goldschmidt
757 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
758 not implemented in SNMP): write-only or not-accessible are still
759 returned by getnext (though not by get)
761 2010-01-24: Simon Goldschmidt
762 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
763 not use reserved C/C++ keywords
765 2010-01-23: Simon Goldschmidt
766 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
769 2010-01-21: Simon Goldschmidt
770 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
771 if tcp_enqueue fails) both in raw- and netconn-API
773 2010-01-19: Simon Goldschmidt
774 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
776 2010-01-18: Iordan Neshev/Simon Goldschmidt
777 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
778 bugfix backports from 2.4.x.
780 2010-01-18: Simon Goldschmidt
781 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
783 2010-01-17: Simon Goldschmidt
784 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
785 task #10102: "netconn: clean up conn->err threading issues" by adding
786 error return value to struct api_msg_msg
788 2010-01-17: Simon Goldschmidt
789 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
790 to return err_t (bugs #27709 and #28087)
792 2010-01-14: Simon Goldschmidt
793 * ...: Use typedef for function prototypes throughout the stack.
795 2010-01-13: Simon Goldschmidt
796 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
797 window = 0) by correctly draining recvmbox/acceptmbox
799 2010-01-11: Simon Goldschmidt
800 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
801 erroneous callbacks) by copying the code from recent pppd
803 2010-01-10: Simon Goldschmidt
804 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
806 2010-01-10: Simon Goldschmidt
807 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
809 2010-01-08: Simon Goldschmidt
810 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
812 2010-01-08: Simon Goldschmidt
813 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
814 passed to dns_local_addhost() might be volatile
816 2010-01-07: Simon Goldschmidt
817 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
819 2010-01-06: Simon Goldschmidt
820 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
822 2009-12-31: Simon Goldschmidt
823 * many ppp files: Reorganised PPP source code from ucip structure to pppd
824 structure to easily compare our code against the pppd code (around v2.3.1)
826 2009-12-27: Simon Goldschmidt
827 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
835 2009-10-27 Simon Goldschmidt/Stephan Lesage
836 * netifapi.c/.h: Added netifapi_netif_set_addr()
838 2009-10-07 Simon Goldschmidt/Fabian Koch
839 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
840 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
842 2009-08-26 Simon Goldschmidt/Simon Kallweit
843 * slipif.c/.h: bug #26397: SLIP polling support
845 2009-08-25 Simon Goldschmidt
846 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
847 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
849 2009-08-25 Simon Goldschmidt
850 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
852 2009-08-24 Jakob Stoklund Olesen
853 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
854 to netif_set_link_up().
856 2009-08-23 Simon Goldschmidt
857 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
858 to a human-readable string.
862 2009-12-24: Kieran Mansley
863 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
866 2009-12-06: Simon Goldschmidt
867 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
868 be statically allocated (like in ucip)
870 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
871 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
873 2009-12-03: Simon Goldschmidt
874 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
875 could have non-zero length
877 2009-12-02: Simon Goldschmidt
878 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
879 tcp_input_pcb until after calling the pcb's callbacks
881 2009-11-29: Simon Goldschmidt
882 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
883 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
885 2009-11-29: Simon Goldschmidt
886 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
887 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
889 2009-11-26: Simon Goldschmidt
890 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
893 2009-11-26: Simon Goldschmidt
894 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
895 algorithm at PCB level
897 2009-11-22: Simon Goldschmidt
898 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
900 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
901 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
902 reusing time-wait pcb
904 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
905 * sockets.c: Fixed bug #28062: Data received directly after accepting
906 does not wake up select
908 2009-11-11: Simon Goldschmidt
909 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
911 2009-10-30: Simon Goldschmidt
912 * opt.h: Increased default value for TCP_MSS to 536, updated default
913 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
915 2009-10-28: Kieran Mansley
916 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
917 to follow algorithm from TCP/IP Illustrated
919 2009-10-27: Kieran Mansley
920 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
922 2009-10-25: Simon Goldschmidt
923 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
924 pcb->recv is NULL to keep rcv_wnd correct)
926 2009-10-25: Simon Goldschmidt
927 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
929 2009-10-23: Simon Goldschmidt (David Empson)
930 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
932 2009-10-21: Simon Goldschmidt
933 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
934 trailing 1 byte len (SYN/FIN)
936 2009-10-21: Simon Goldschmidt
937 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
939 2009-10-19: Simon Goldschmidt
940 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
941 conditional code to assert where applicable), check pbuf length before
942 testing for valid reply
944 2009-10-19: Simon Goldschmidt
945 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
946 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
948 2009-10-16: Simon Goldschmidt
949 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
950 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
953 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
954 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
956 2009-10-15: Simon Goldschmidt
957 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
960 2009-10-15: Simon Goldschmidt
961 * autoip.c: Fixed bug #27704: autoip starts with wrong address
962 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
963 of network byte order
965 2009-10-11 Simon Goldschmidt (Jörg Kesten)
966 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
967 which are not consecutive when retransmitting unacked segments
969 2009-10-09 Simon Goldschmidt
970 * opt.h: Fixed default values of some stats to only be enabled if used
971 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
973 2009-08-30 Simon Goldschmidt
974 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
975 function" by checking for loopback before calling ip_frag
977 2009-08-25 Simon Goldschmidt
978 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
980 2009-08-23 Simon Goldschmidt
981 * ppp.c: bug #27078: Possible memory leak in pppInit()
983 2009-08-23 Simon Goldschmidt
984 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
987 2009-08-23 Simon Goldschmidt
988 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
989 Fixed wrong parenthesis, added check in init.c
991 2009-08-23 Simon Goldschmidt
992 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
994 2009-08-23 Simon Goldschmidt
995 * many ppp files: bug #27267: Added include to string.h where needed
997 2009-08-23 Simon Goldschmidt
998 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1005 2009-05-10 Simon Goldschmidt
1006 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1007 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1008 one pbuf to help MACs that don't support scatter-gather DMA.
1010 2009-05-09 Simon Goldschmidt
1011 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1012 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1014 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1015 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1016 extended info about the currently received packet.
1018 2009-04-27 Simon Goldschmidt
1019 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1021 2009-04-25 Simon Goldschmidt
1022 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1023 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1025 2009-04-21 Simon Goldschmidt
1026 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1027 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1028 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1029 as an external function for lookup.
1031 2009-04-15 Simon Goldschmidt
1032 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1034 2009-03-31 Kieran Mansley
1035 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1036 TCP timestamp options, off by default. Rework tcp_enqueue() to
1037 take option flags rather than specified option data
1039 2009-02-18 Simon Goldschmidt
1040 * cc.h: Added printf formatter for size_t: SZT_F
1042 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1043 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1046 2009-02-12 Simon Goldschmidt
1047 * init.h: Added LWIP_VERSION to get the current version of the stack
1049 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1050 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1051 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1054 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1055 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1056 is only used by UDPLITE at present, so conditionalise it.
1058 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1059 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1060 "seed" address. This should reduce AUTOIP conflicts if
1061 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1063 2008-10-02 Jonathan Larmour and Rishi Khan
1064 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1067 2008-06-30 Simon Goldschmidt
1068 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1069 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1070 mem_free to run between mem_malloc iterations. Added illegal counter for
1073 2008-06-27 Simon Goldschmidt
1074 * stats.h/.c, some other files: patch #6483: stats module improvement:
1075 Added defines to display each module's statistic individually, added stats
1076 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1078 2008-06-17 Simon Goldschmidt
1079 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1080 (define LWIP_ERR_T in cc.h)
1082 2008-06-17 Simon Goldschmidt
1083 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1086 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1087 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1088 modified version of patch # 6370: Moved loopif code to netif.c so that
1089 loopback traffic is supported on all netifs (all local IPs).
1090 Added option to limit loopback packets for each netifs.
1094 2009-08-12 Kieran Mansley
1095 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1096 out of window or out of order properly
1098 2009-08-12 Kieran Mansley
1099 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1101 2009-07-28 Simon Goldschmidt
1102 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1104 2009-07-27 Kieran Mansley
1105 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1107 2009-07-09 Kieran Mansley
1108 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1109 recv_avail and don't increment counters until message successfully
1112 2009-06-25 Kieran Mansley
1113 * api_msg.c api.h: BUG26722: initialise netconn write variables
1116 2009-06-25 Kieran Mansley
1117 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1119 2009-06-25 Kieran Mansley
1120 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1121 simultaneous close behaviour, and make snd_nxt have the same meaning
1124 2009-05-12 Simon Goldschmidt
1125 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1126 arp_table / uses etharp_query" by adding etharp_gratuitous()
1128 2009-05-12 Simon Goldschmidt
1129 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1130 to the IP header (used by igmp_ip_output_if)
1132 2009-05-06 Simon Goldschmidt
1133 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1134 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1136 2009-05-05 Simon Goldschmidt
1137 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1140 2009-05-04 Simon Goldschmidt
1141 * init.c: snmp was not initialized in lwip_init()
1143 2009-05-04 Frédéric Bernon
1144 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1146 2009-05-03 Simon Goldschmidt
1147 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1148 (and unsent->next == NULL)
1150 2009-05-02 Simon Goldschmidt
1151 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1152 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1154 2009-05-02 Simon Goldschmidt
1155 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1157 2009-05-01 Simon Goldschmidt
1158 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1160 2009-05-01 Simon Goldschmidt
1161 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1163 2009-04-29 Frédéric Bernon
1164 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1165 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1166 of broadcast packets even when this option wasn't set. Port maintainers
1167 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1168 If you want this option also filter broadcast on recv operations, you also
1169 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1171 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1172 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1173 DHCP/AUTOIP cooperation
1175 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1176 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1177 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1178 right place in tcp_output and tcp_rexmit).
1180 2009-04-25 Simon Goldschmidt
1181 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1182 when debugging": memp_sizes contained the wrong sizes (including sanity
1183 regions); memp pools for MEM_USE_POOLS were too small
1185 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1186 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1187 behavior, with with ip address string not ended by a '\0', a space or a
1190 2009-04-19 Simon Goldschmidt
1191 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1192 pcb->err is called, not pcb->connected (with an error code).
1194 2009-04-19 Simon Goldschmidt
1195 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1196 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1198 2009-04-19 Simon Goldschmidt
1199 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1200 in the header pbuf, not the data pbuf)
1202 2009-04-18 Simon Goldschmidt
1203 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1205 2009-04-15 Simon Goldschmidt
1206 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1208 2009-04-15 Simon Goldschmidt
1209 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1211 2009-04-15 Simon Goldschmidt
1212 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1213 ip_hinted_output() (for smaller code mainly)
1215 2009-04-15 Simon Goldschmidt
1216 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1218 2009-04-15 Simon Goldschmidt
1219 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1220 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1221 is big enough in dhcp_start
1223 2009-04-15 Simon Goldschmidt
1224 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1226 2009-04-15 Simon Goldschmidt
1227 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1229 2009-04-15 Simon Goldschmidt
1230 * sockets.c: bug #26121: set_errno can be overridden
1232 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1233 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1236 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1237 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1240 2009-03-31 Kieran Mansley
1241 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1242 updates are calculated and sent (BUG20515)
1244 * tcp_in.c: cope with SYN packets received during established states,
1245 and retransmission of initial SYN.
1247 * tcp_out.c: set push bit correctly when tcp segments are merged
1249 2009-03-27 Kieran Mansley
1250 * tcp_out.c set window correctly on probes (correcting change made
1253 2009-03-26 Kieran Mansley
1254 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1255 connections where no reset required (bug #25622)
1257 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1260 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1261 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1262 too small depending on MEM_ALIGNMENT
1264 2009-02-16 Simon Goldschmidt
1265 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1266 converted size argument of netconn_write to 'size_t'
1268 2009-02-16 Simon Goldschmidt
1269 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1270 by moving accept callback function pointer to TCP_PCB_COMMON
1272 2009-02-12 Simon Goldschmidt
1273 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1276 2009-02-11 Simon Goldschmidt
1277 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1279 2009-02-11 Simon Goldschmidt
1280 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1281 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1283 2009-02-10 Simon Goldschmidt
1284 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1285 Accepts_pending is decrease on a corresponding listen pcb when a connection
1286 in state SYN_RCVD is close.
1288 2009-01-28 Jonathan Larmour
1289 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1292 2008-12-19 Simon Goldschmidt
1293 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1295 2008-12-10 Tamas Somogyi, Frédéric Bernon
1296 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1297 port uses deleted netbuf.
1299 2008-10-18 Simon Goldschmidt
1300 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1303 2008-10-15 Simon Goldschmidt
1304 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1305 by packing the struct ip_reass_helper.
1307 2008-10-03 David Woodhouse, Jonathan Larmour
1308 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1310 2008-10-02 Jonathan Larmour
1311 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1312 padding is included.
1314 2008-09-30 Jonathan Larmour
1315 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1316 assertion check that addrlen isn't NULL.
1318 2008-09-30 Jonathan Larmour
1319 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1321 2008-08-26 Simon Goldschmidt
1322 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1323 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1325 2008-08-14 Simon Goldschmidt
1326 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1327 tcp_close returns != ERR_OK)
1329 2008-07-08 Frédéric Bernon
1330 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1331 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1333 2008-06-24 Jonathan Larmour
1334 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1335 if tcp_seg_copy fails.
1337 2008-06-17 Simon Goldschmidt
1338 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1339 and created defines for swapping bytes and folding u32 to u16.
1341 2008-05-30 Kieran Mansley
1342 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1343 rather than rcv_ann_wnd when deciding if packets are in-window.
1344 Contributed by <arasmussen@consultant.datasys.swri.edu>
1346 2008-05-30 Kieran Mansley
1347 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1348 passing as function pointers when MEM_LIBC_MALLOC is defined.
1350 2008-05-09 Jonathan Larmour
1351 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1352 stop it being treated as a fatal error.
1354 2008-04-15 Simon Goldschmidt
1355 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1358 2008-03-27 Simon Goldschmidt
1359 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1360 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1361 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1362 or heap memory from interrupt context
1364 2008-03-26 Simon Goldschmidt
1365 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1366 host sent a zero mss as TCP option.
1373 2008-03-10 Jonathan Larmour
1374 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1375 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1377 2008-01-22 Frédéric Bernon
1378 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1379 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1381 2008-01-14 Frédéric Bernon
1382 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1383 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1384 tcp_recv callback (see rawapi.txt).
1386 2008-01-14 Frédéric Bernon, Marc Chaland
1387 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1389 2008-01-12 Frédéric Bernon
1390 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1391 netconn::sem per netconn::op_completed like suggested for the task #7490
1392 "Add return value to sys_mbox_post".
1394 2008-01-12 Frédéric Bernon
1395 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1396 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1397 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1399 2008-01-10 Frédéric Bernon
1400 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1401 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1402 "blocking" ("block" parameter = 1).
1404 2008-01-10 Frédéric Bernon
1405 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1406 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1407 "Add return value to sys_mbox_post".
1409 2008-01-05 Frédéric Bernon
1410 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1411 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1412 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1413 indicate the number of pointers query by the mailbox. There is three defines
1414 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1415 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1416 parameter in your implementation, but to ignore it to keep the previous behavior.
1417 The new sys_mbox_trypost function return a value to know if the mailbox is
1418 full or if the message is posted. Take a look to sys_arch.txt for more details.
1419 This new function is used in tcpip_input (so, can be called in an interrupt
1420 context since the function is not blocking), and in recv_udp and recv_raw.
1422 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1423 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1424 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1425 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1426 documentation in the rawapi.txt file.
1428 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1429 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1431 2007-12-31 Frédéric Bernon, Luca Ceresoli
1432 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1433 in autoip". The change in etharp_raw could be removed, since all calls to
1434 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1435 wrong in the future.
1437 2007-12-30 Frédéric Bernon, Tom Evans
1438 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1439 Filtering" reported by Tom Evans.
1441 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1442 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1443 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1444 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1445 keep accepting new connections.
1447 2007-12-13 Frédéric Bernon
1448 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1449 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1451 2007-12-12 Frédéric Bernon
1452 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1453 are the one which have ram usage.
1455 2007-12-05 Frédéric Bernon
1456 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1457 set of variables (=0) or a local one (=1). In this last case, your port should
1458 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1459 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1461 2007-12-03 Simon Goldschmidt
1462 * ip.c: ip_input: check if a packet is for inp first before checking all other
1463 netifs on netif_list (speeds up packet receiving in most cases)
1465 2007-11-30 Simon Goldschmidt
1466 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1467 UDP: move a (connected) pcb selected for input to the front of the list of
1468 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1471 2007-11-28 Simon Goldschmidt
1472 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1474 2007-11-25 Simon Goldschmidt
1475 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1478 2007-11-24 Simon Goldschmidt
1479 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1480 to the new file netdb.c; included lwip_getaddrinfo.
1482 2007-11-21 Simon Goldschmidt
1483 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1484 based on the MTU of the netif used to send. Enabled by default. Disable by
1485 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1487 2007-11-19 Frédéric Bernon
1488 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1489 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1490 copy dns payload to parse the response), return an error if there is no place
1491 for a new query, and fix some minor problems.
1493 2007-11-16 Simon Goldschmidt
1494 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1495 removed files: core/inet.c, core/inet6.c
1496 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1497 inet and chksum part; changed includes in all lwIP files as appropriate
1499 2007-11-16 Simon Goldschmidt
1500 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1501 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1502 (gethostbyname/gethostbyname_r).
1504 2007-11-15 Jim Pettinato, Frédéric Bernon
1505 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1506 requests with RAW api interface. Initialization is done in lwip_init() with
1507 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1508 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1509 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1510 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1511 list with points to improve.
1513 2007-11-06 Simon Goldschmidt
1514 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1515 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1516 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1518 2007-11-06 Simon Goldschmidt
1519 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1520 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1521 implementation from netconn api applications.
1523 2007-11-03 Frédéric Bernon
1524 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1525 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1526 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1527 it. This is a first release which have to be improve for TCP. Note it used the
1528 netconn::recv_avail which need to be more "thread-safe" (note there is already
1529 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1531 2007-11-01 Frédéric Bernon, Marc Chaland
1532 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1533 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1534 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1535 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1536 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1538 2007-10-24 Frédéric Bernon
1539 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1540 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1541 some code (like we have talk in "patch #5919 : Create compile switch to remove
1542 select code"), but it could be done later.
1544 2007-10-08 Simon Goldschmidt
1545 * many files: Changed initialization: many init functions are not needed any
1546 more since we now rely on the compiler initializing global and static
1549 2007-10-06 Simon Goldschmidt
1550 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1551 to enqueue the received pbufs so that multiple packets can be reassembled
1552 simultaneously and no static reassembly buffer is needed.
1554 2007-10-05 Simon Goldschmidt
1555 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1556 all netifs (or ports) can use it.
1558 2007-10-05 Frédéric Bernon
1559 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1560 common function to reduce a little bit the footprint (for all functions using
1561 only the "netif" parameter).
1563 2007-10-03 Frédéric Bernon
1564 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1565 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1566 a little bit the footprint (for all functions using only the "netif" parameter).
1568 2007-09-15 Frédéric Bernon
1569 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1570 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1571 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1572 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1574 2007-09-10 Frédéric Bernon
1575 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1576 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1577 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1578 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1579 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1580 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1581 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1582 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1583 when it's queried (any direct call to "sysuptime" is changed by a call to
1584 snmp_get_sysuptime).
1586 2007-09-09 Frédéric Bernon, Bill Florac
1587 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1588 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1589 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1590 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1591 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1592 the next query message to receive the matching multicast streams).
1594 2007-09-08 Frédéric Bernon
1595 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1596 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1597 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1598 Enable to access to these fields with LWIP_TCP=0.
1600 2007-09-05 Frédéric Bernon
1601 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1602 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1603 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1604 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1605 help to reduce footprint, and to reduce "visibility" on the Internet.
1607 2007-09-05 Frédéric Bernon, Bill Florac
1608 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1609 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1610 parameters have to be provided: a task name, and a task stack size. For this
1611 one, since it's platform dependant, you could define the best one for you in
1612 your lwipopts.h. For port maintainers, you can just add these new parameters
1613 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1616 2007-09-05 Frédéric Bernon
1617 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1618 inside init.c for task #7142 "Sanity check user-configurable values".
1620 2007-09-04 Frédéric Bernon, Bill Florac
1621 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1622 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1623 value). It will avoid potential fragmentation problems, use a counter to know
1624 how many times a group is used on an netif, and free it when all applications
1625 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1626 check if LWIP_IGMP!=0).
1628 2007-09-03 Frédéric Bernon
1629 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1630 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1631 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1632 and/or the "interface" field (for netconn layer), for join/leave operations.
1633 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1634 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1636 2007-08-30 Frédéric Bernon
1637 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1638 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1639 with other API (application based on raw API, or future "socket2" API). Ports
1640 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1642 2007-08-30 Frédéric Bernon, Jonathan Larmour
1643 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1644 user-configurable values".
1646 2007-08-29 Frédéric Bernon
1647 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1648 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1649 spirit than the others modules. Modify some IGMP debug traces.
1651 2007-08-29 Frédéric Bernon
1652 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1653 Add lwip_init function to regroup all modules initializations, and to provide
1654 a place to add code for task #7142 "Sanity check user-configurable values".
1655 Ports maintainers should remove direct initializations calls from their code,
1656 and add init.c in their makefiles. Note that lwip_init() function is called
1657 inside tcpip_init, but can also be used by raw api users since all calls are
1658 disabled when matching options are disabled. Also note that their is new options
1659 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1661 2007-08-26 Marc Boucher
1662 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1663 since they can under certain circumstances be called with an invalid conn
1664 pointer after the connection has been closed (and conn has been freed).
1666 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1667 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1668 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1670 2007-08-22 Frédéric Bernon
1671 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1672 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1674 2007-08-22 Frédéric Bernon
1675 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1676 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1677 name is tcpip_input (we keep the name of 1.2.0 function).
1679 2007-08-17 Jared Grubb
1680 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1681 settings into new memp_std.h and optional user file lwippools.h. This adds
1682 more dynamic mempools, and allows the user to create an arbitrary number of
1683 mempools for mem_malloc.
1685 2007-08-16 Marc Boucher
1686 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1687 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1688 close the connection.
1690 2007-08-16 Marc Boucher
1691 * sockets.c: lwip_accept(): check netconn_peer() error return.
1693 2007-08-16 Marc Boucher
1694 * mem.c, mem.h: Added mem_calloc().
1696 2007-08-16 Marc Boucher
1697 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1698 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1699 and starving other message types.
1700 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1702 2007-08-16 Marc Boucher
1703 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1704 type and flgs (later renamed to flags).
1705 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1706 Improved lwip_recvfrom(). TCP push now propagated.
1708 2007-08-16 Marc Boucher
1709 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1712 2007-08-16 Marc Boucher
1713 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1714 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1715 Added PPPoE support and various PPP improvements.
1717 2007-07-25 Simon Goldschmidt
1718 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1719 making netbuf_copy_partial use this function.
1721 2007-07-25 Simon Goldschmidt
1722 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1723 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1726 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1727 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1728 a link callback in the netif struct, and functions to handle it. Be carefull
1729 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1730 if you want to be sure to be compatible with future changes...
1732 2007-06-30 Frédéric Bernon
1733 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1735 2007-06-21 Simon Goldschmidt
1736 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1737 LWIP_AUTOIP =0 and =1 to remove redundant code.
1739 2007-06-21 Simon Goldschmidt
1740 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1741 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1742 heap. This both prevents memory fragmentation and gives a higher speed
1743 at the cost of more memory consumption. Turned off by default.
1745 2007-06-21 Simon Goldschmidt
1746 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1747 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1748 int to be able to send a bigger buffer than 64K with one time (mainly
1749 used from lwip_send).
1751 2007-06-21 Simon Goldschmidt
1752 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1753 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1755 2007-06-21 Simon Goldschmidt
1756 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1757 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1758 changes on low memory or empty send-buffer.
1760 2007-06-18 Simon Goldschmidt
1761 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1762 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1763 used for ethernet and struct eth_addr already had a defined length of 6).
1765 2007-06-17 Simon Goldschmidt
1766 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1767 to disable UDP checksum generation on transmit.
1769 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1770 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1771 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1772 this macro to check "conn" parameter in api_msg.c functions.
1774 2007-06-11 Simon Goldschmidt
1775 * sockets.c, sockets.h: Added UDP lite support for sockets
1777 2007-06-10 Simon Goldschmidt
1778 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1779 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1782 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1783 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1784 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1785 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1786 (see TODO mark in the source code).
1788 2007-06-09 Simon Goldschmidt
1789 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1790 etharp_output() to match netif->output so etharp_output() can be used
1791 directly as netif->output to save one function call.
1793 2007-06-08 Simon Goldschmidt
1794 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1795 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1796 added initialization of those to ethernetif, slipif and loopif.
1798 2007-05-18 Simon Goldschmidt
1799 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1800 (defaulting to off for now) that can be set to 0 to send fragmented
1801 packets by passing PBUF_REFs down the stack.
1803 2007-05-23 Frédéric Bernon
1804 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1805 connections, such present in patch #5959.
1807 2007-05-23 Frédéric Bernon
1808 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1809 code in only one part...
1811 2007-05-18 Simon Goldschmidt
1812 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1813 elements to overflow. This is achieved by adding some bytes before and after
1814 each pool element (increasing their size, of course), filling them with a
1815 prominent value and checking them on freeing the element.
1816 Set it to 2 to also check every element in every pool each time memp_malloc()
1817 or memp_free() is called (slower but more helpful).
1819 2007-05-10 Simon Goldschmidt
1820 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1821 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1824 2007-05-11 Frédéric Bernon
1825 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1826 Include a function pointer instead of a table index in the message to reduce
1827 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1828 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1830 2007-05-10 Simon Goldschmidt
1831 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1832 \ extern "C" {' in all header files. Now you can write your application using
1833 the lwIP stack in C++ and simply #include the core files. Note I have left
1834 out the netif/ppp/*h header files for now, since I don't know which files are
1835 included by applications and which are for internal use only.
1837 2007-05-09 Simon Goldschmidt
1838 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1839 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1840 situations where some compilers might inline the copy and save a function
1841 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1843 2007-05-08 Simon Goldschmidt
1844 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1845 to be overriden in case the C-library malloc implementation is not protected
1846 against concurrent access.
1848 2007-05-04 Simon Goldschmidt (Atte Kojo)
1849 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1850 multiple packets to the same host.
1852 2007-05-04 Frédéric Bernon, Jonathan Larmour
1853 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1854 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1855 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1856 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1857 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1858 these fields are now renamed "addr" & "port".
1860 2007-04-11 Jonathan Larmour
1861 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1862 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1863 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1864 by the port in sys_arch.h if desired.
1866 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1867 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1868 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1869 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1871 2007-04-05 Frédéric Bernon
1872 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1874 2007-04-04 Simon Goldschmidt
1875 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1876 use this for and architecture-independent form to tell the compiler you intentionally
1877 are not using this variable. Can be overriden in cc.h.
1879 2007-03-28 Frédéric Bernon
1880 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1881 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1882 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1883 It will be used by DHCP to register a client hostname, but can also be use when you call
1886 2007-03-28 Frédéric Bernon
1887 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1888 initialize a network interface's flag with. It tell this interface is an ethernet
1889 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1890 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1892 2007-03-26 Frédéric Bernon, Jonathan Larmour
1893 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1894 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1895 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1896 is done in tcpip_init function.
1898 2007-03-22 Frédéric Bernon
1899 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1900 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1901 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1902 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1903 but never used. Fix msg_in.c with the correct #if test for a stat display.
1905 2007-03-21 Kieran Mansley
1906 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1907 Provides callback on netif up/down state change.
1909 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1910 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1911 ip.c, netif.h, tcpip.c, opt.h:
1912 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1913 filter per all network interfaces. Declare a new function in netif to enable to
1914 control the MAC filter (to reduce lwIP traffic processing).
1916 2007-03-11 Frédéric Bernon
1917 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1918 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1919 unless you know what you're doing (default are RFC1122 compliant). Note
1920 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1922 2007-03-08 Frédéric Bernon
1923 * tcp.h: Keepalive values can be configured at compile time, but don't change
1924 this unless you know what you're doing (default are RFC1122 compliant).
1926 2007-03-08 Frédéric Bernon
1927 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1928 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1929 on UDP sockets/netconn.
1931 2007-03-08 Simon Goldschmidt
1932 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1934 2007-03-06 Frédéric Bernon
1935 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1936 Implement SO_RCVTIMEO on UDP sockets/netconn.
1938 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1939 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1940 on the stack and remove the API msg type from memp
1942 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1943 * sockets.h, sockets.c: Move socket initialization to new
1944 lwip_socket_init() function.
1945 NOTE: this changes the API with ports. Ports will have to be
1946 updated to call lwip_socket_init() now.
1948 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1949 * api_lib.c: Use memcpy in netbuf_copy_partial.
1954 2008-03-17 Frédéric Bernon, Ed Kerekes
1955 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1956 some problems to fill the IP header on some targets, use now the
1957 ip.h macros to do it).
1959 2008-03-13 Frédéric Bernon
1960 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1961 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1962 TCP connection caused a crash. Note that using (lwip_)recvfrom
1963 like this is a bit slow and that using (lwip)getpeername is the
1964 good lwip way to do it (so, using recv is faster on tcp sockets).
1966 2008-03-12 Frédéric Bernon, Jonathan Larmour
1967 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1968 recv_raw() does not consume data", and the ping sample (with
1969 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1970 returned the IP payload, without the IP header).
1972 2008-03-04 Jonathan Larmour
1973 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1974 and/or warnings on some systems where mem_size_t and size_t differ.
1975 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1977 2008-03-04 Kieran Mansley (contributions by others)
1978 * Numerous small compiler error/warning fixes from contributions to
1979 mailing list after 1.3.0 release candidate made.
1981 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1982 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1984 2008-01-15 Kieran Mansley
1985 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1986 prevented from sending by a small send window, not just a zero
1989 2008-01-09 Jonathan Larmour
1990 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1991 conflict with Linux system headers.
1993 2008-01-06 Jonathan Larmour
1994 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1995 address entirely on receiving a DHCPNAK, and restarting discovery.
1997 2007-12-21 Simon Goldschmidt
1998 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1999 is not protected" by using new macros for interlocked access to modify/test
2000 netconn->recv_avail.
2002 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2003 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2005 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2006 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2007 of silly window avoidance and prevent lwIP from shrinking the window)
2009 2007-12-04 Simon Goldschmidt
2010 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2011 data packet was lost): add assert that all segment lists are empty in
2012 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2013 state from LAST_ACK in tcp_process
2015 2007-12-02 Simon Goldschmidt
2016 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2017 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2018 has to be set to 0 in lwipopts.h
2020 2007-12-02 Simon Goldschmidt
2021 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2022 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2023 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2024 This is a fix for thread-safety and allocates all items needed for a netconn
2025 when the netconn is created.
2027 2007-11-30 Simon Goldschmidt
2028 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2029 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2030 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2031 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2033 2007-11-27 Simon Goldschmidt
2034 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2035 letting ip_route only use netifs that are up.
2037 2007-11-27 Simon Goldschmidt
2038 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2039 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2040 sockets block most operations once they have seen a fatal error.
2042 2007-11-27 Simon Goldschmidt
2043 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2044 netif to send as an argument (to be able to send on netifs that are down).
2046 2007-11-26 Simon Goldschmidt
2047 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2050 2007-11-21 Simon Goldschmidt
2051 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2052 Fixed the nagle algorithm; nagle now also works for all raw API applications
2053 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2055 2007-11-12 Frédéric Bernon
2056 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2057 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2058 context in do_getaddr.
2060 2007-11-10 Simon Goldschmidt
2061 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2062 happen any time). Now the packet simply isn't enqueued when out of memory.
2064 2007-11-01 Simon Goldschmidt
2065 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2066 TCP_MSS if that is smaller) as long as no MSS option is received from the
2069 2007-11-01 Simon Goldschmidt
2070 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2071 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2072 sending our configured TCP_MSS instead of the one received).
2074 2007-11-01 Simon Goldschmidt
2075 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2076 calculated based on the configured TCP_MSS, not on the MSS option received
2079 2007-10-09 Simon Goldschmidt
2080 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2081 short and also was generated wrong if checksum coverage != tot_len;
2082 receive: checksum was calculated wrong if checksum coverage != tot_len
2084 2007-10-08 Simon Goldschmidt
2085 * mem.c: lfree was not updated in mem_realloc!
2087 2007-10-07 Frédéric Bernon
2088 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2089 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2090 this change cause an API breakage for netconn_addr, since a parameter
2091 type change. Any compiler should cause an error without any changes in
2092 yours netconn_peer calls (so, it can't be a "silent change"). It also
2093 reduce a little bit the footprint for socket layer (lwip_getpeername &
2094 lwip_getsockname use now a common lwip_getaddrname function since
2095 netconn_peer & netconn_addr have the same parameters).
2097 2007-09-20 Simon Goldschmidt
2098 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2099 by checking tcp_tw_pcbs also
2101 2007-09-19 Simon Goldschmidt
2102 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2104 2007-09-15 Mike Kleshov
2105 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2107 2007-09-06 Frédéric Bernon
2108 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2109 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2110 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2111 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2113 2007-08-30 Frédéric Bernon
2114 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2115 and fix some coding style.
2117 2007-08-28 Frédéric Bernon
2118 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2119 kind of packets. These packets are considered like Ethernet packets (payload
2120 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2121 are considered like IP packets (payload pointing to iphdr).
2123 2007-08-27 Frédéric Bernon
2124 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2125 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2126 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2128 2007-08-24 Kieran Mansley
2129 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2130 compiler (Paradigm C++)
2132 2007-08-09 Frédéric Bernon, Bill Florac
2133 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2134 Introduce IGMP_STATS to centralize statistics management.
2136 2007-08-09 Frédéric Bernon, Bill Florac
2137 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2138 packet on a udp pcb binded on an netif's IP address, and not on "any".
2140 2007-08-09 Frédéric Bernon, Bill Florac
2141 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2142 This is mainly on using lookup/lookfor, and some coding styles...
2144 2007-07-26 Frédéric Bernon (and "thedoctor")
2145 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2147 2007-07-25 Simon Goldschmidt
2148 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2149 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2150 (tcp_output is called again later from tcp timers).
2152 2007-07-25 Simon Goldschmidt
2153 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2154 copy_from_pbuf, which illegally modified the given pbuf.
2156 2007-07-25 Simon Goldschmidt
2157 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2158 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2160 2007-07-24 Simon Goldschmidt
2161 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2162 correct state (must be CLOSED).
2164 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2165 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2166 allocation. It now returns NULL.
2168 2007-07-13 Frédéric Bernon
2169 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2172 2007-07-13 Frédéric Bernon
2173 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2174 because current code doesn't follow rawapi.txt documentation.
2176 2007-07-13 Kieran Mansley
2177 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2178 out of sequence processing of received packets
2180 2007-07-03 Simon Goldschmidt
2181 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2182 assumption is made that this pbuf is in one piece (i.e. not chained). These
2183 assumptions clash with the possibility of converting to fully pool-based
2184 pbuf implementations, where PBUF_RAM pbufs might be chained.
2186 2007-07-03 Simon Goldschmidt
2187 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2188 when closing tcp netconns: removed conn->sem, less context switches when
2189 closing, both netconn_close and netconn_delete should safely close tcp
2192 2007-07-02 Simon Goldschmidt
2193 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2194 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2195 to cache ARP table indices with each pcb instead of single-entry cache for
2198 2007-07-02 Simon Goldschmidt
2199 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2200 warnings when assigning to smaller types.
2202 2007-06-28 Simon Goldschmidt
2203 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2205 2007-06-28 Simon Goldschmidt
2206 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2207 a segment contained chained pbufs)
2209 2007-06-28 Frédéric Bernon
2210 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2211 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2212 possible to define this macro in your own lwipopts.h to always use C library's
2213 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2215 2007-06-28 Frédéric Bernon
2216 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2217 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2218 in api_lib/api_msg (use pointers and not type with table, etc...)
2220 2007-06-26 Simon Goldschmidt
2221 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2223 2007-06-25 Simon Goldschmidt
2224 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2225 for udp packets with no matching pcb.
2227 2007-06-25 Simon Goldschmidt
2228 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2229 could get udp input packets if the remote side matched.
2231 2007-06-13 Simon Goldschmidt
2232 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2233 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2235 2007-06-13 Simon Goldschmidt
2236 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2237 -> netconn_new_..() does not allocate a new connection for unsupported
2240 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2241 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2242 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2244 2007-06-13 Frédéric Bernon, Matthias Weisser
2245 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2246 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2247 some macro names collision with some OS macros.
2249 2007-06-11 Simon Goldschmidt
2250 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2251 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2252 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2255 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2256 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2257 where TCP flags wasn't initialized in tcp_keepalive.
2259 2007-06-03 Simon Goldschmidt
2260 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2261 registered, p->payload was modified without modifying p->len if sending
2262 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2264 2007-06-03 Simon Goldschmidt
2265 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2266 re-used the input pbuf even if that didn't have enough space to include the
2267 link headers. Now the space is tested and a new pbuf is allocated for the
2268 echo response packet if the echo request pbuf isn't big enough.
2270 2007-06-01 Simon Goldschmidt
2271 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2273 2007-05-23 Frédéric Bernon
2274 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2275 allocated by do_listen if success) and netconn_accept errors handling. In
2276 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2277 by ASSERT, except for netconn_delete.
2279 2007-05-23 Frédéric Bernon
2280 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2281 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2282 directly close the recvmbox).
2284 2007-05-22 Simon Goldschmidt
2285 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2286 bound but unconnected (and non-listening) tcp_pcbs.
2288 2007-05-22 Frédéric Bernon
2289 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2290 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2291 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2292 like "sys_timeout" in their application threads.
2294 2007-05-22 Frédéric Bernon
2295 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2296 which parameters are used by which do_xxx function, and to avoid "misusing"
2297 parameters (patch #5938).
2299 2007-05-22 Simon Goldschmidt
2300 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2301 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2302 is only 8 bits wide. This affects the api, as there, the protocol was
2305 2007-05-18 Simon Goldschmidt
2306 * memp.c: addition to patch #5913: smaller pointer was returned but
2307 memp_memory was the same size -> did not save memory.
2309 2007-05-16 Simon Goldschmidt
2310 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2313 2007-05-16 Simon Goldschmidt
2314 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2315 as the one of the netif used for sending to prevent sending from old
2316 addresses after a netif address gets changed (partly fixes bug #3168).
2318 2007-05-16 Frédéric Bernon
2319 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2320 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2321 tcpip_init) because we have to be sure that network interfaces are already
2322 added (mac filter is updated only in igmp_init for the moment).
2324 2007-05-16 Simon Goldschmidt
2325 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2326 into sys_arch_sem_wait calls to prevent timers from running while waiting
2327 for the heap. This fixes bug #19167.
2329 2007-05-13 Simon Goldschmidt
2330 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2331 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2334 2007-05-07 Simon Goldschmidt
2335 * mem.c: Another attempt to fix bug #17922.
2337 2007-05-04 Simon Goldschmidt
2338 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2339 implementation so that it can be reused (don't allocate the target
2340 pbuf inside pbuf_copy()).
2342 2007-05-04 Simon Goldschmidt
2343 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2344 to save a little RAM (next pointer of memp is not used while not in pool).
2347 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2350 2007-04-23 Simon Goldschmidt
2351 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2352 in NULL reference for incoming TCP packets". Loopif has to be configured
2353 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2354 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2355 putting packets on a list that is fed to the stack by calling loopif_poll()
2356 (single-thread / NO_SYS / polling environment where e.g.
2357 netif->input() = ip_input).
2359 2007-04-17 Jonathan Larmour
2360 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2361 the difference between two u16_t's.
2362 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2363 MEMP_NUM_NETCONN in sockets.c right now.
2365 2007-04-12 Jonathan Larmour
2366 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2368 2007-04-12 Kieran Mansley
2369 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2370 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2372 2007-04-11 Simon Goldschmidt
2373 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2374 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2375 pbuf.c: removed functions no needed any more (by etharp).
2377 2007-04-11 Kieran Mansley
2378 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2379 "Constant is long" warnings with 16bit compilers. Contributed by
2380 avatar@mmlab.cse.yzu.edu.tw
2382 2007-04-05 Frédéric Bernon, Jonathan Larmour
2383 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2384 the mailbox is active". Now, the post is only done during a connect, and do_send,
2385 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2387 2007-04-03 Frédéric Bernon
2388 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2389 packets. See patch #5834.
2391 2007-03-30 Frédéric Bernon
2392 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2393 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2395 2007-03-30 Frédéric Bernon
2396 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2397 others environment defines (these were too "generic").
2399 2007-03-28 Frédéric Bernon
2400 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2401 result and can cause a crash. lwip_send now check netbuf_ref result.
2403 2007-03-28 Simon Goldschmidt
2404 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2405 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2406 defined. This is the way it should have been already (looking at
2409 2007-03-28 Kieran Mansley
2410 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2411 IP and TCP headers *and* physical link headers
2413 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2414 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2415 to send some garbage. It is not a definitive solution, but the patch does solve
2416 the problem for most cases.
2418 2007-03-22 Frédéric Bernon
2419 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2421 2007-03-22 Frédéric Bernon
2422 * api_lib.c: somes resources couldn't be freed if there was errors during
2423 netconn_new_with_proto_and_callback.
2425 2007-03-22 Frédéric Bernon
2426 * ethernetif.c: update netif->input calls to check return value. In older ports,
2427 it's a good idea to upgrade them, even if before, there could be another problem
2428 (access to an uninitialized mailbox).
2430 2007-03-21 Simon Goldschmidt
2431 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2432 by casting to unsigned).
2434 2007-03-21 Frédéric Bernon
2435 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2436 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2437 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2438 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2439 faster and more reliable communication between api_lib and tcpip.
2441 2007-03-21 Frédéric Bernon
2442 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2444 2007-03-21 Frédéric Bernon
2445 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2447 2007-03-21 Kieran Mansley
2448 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2451 2007-03-21 Kieran Mansley
2452 * Fix all uses of pbuf_header to check the return value. In some
2453 cases just assert if it fails as I'm not sure how to fix them, but
2454 this is no worse than before when they would carry on regardless
2457 2007-03-21 Kieran Mansley
2458 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2459 comment out missing header include in icmp.c
2461 2007-03-20 Frédéric Bernon
2462 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2463 synchronized with memp.h.
2465 2007-03-20 Frédéric Bernon
2466 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2467 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2468 network interfaces. Also fix a compiler warning.
2470 2007-03-20 Kieran Mansley
2471 * udp.c: Only try and use pbuf_header() to make space for headers if
2472 not a ROM or REF pbuf.
2474 2007-03-19 Frédéric Bernon
2475 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2478 2007-03-19 Frédéric Bernon
2479 * Remove unimplemented "memp_realloc" function from memp.h.
2481 2007-03-11 Simon Goldschmidt
2482 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2485 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2486 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2487 (missing `const' qualifier in socket functions), to get more compatible to
2488 standard POSIX sockets.
2490 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2491 * sockets.c: Add asserts inside bind, connect and sendto to check input
2492 parameters. Remove excessive set_errno() calls after get_socket(), because
2493 errno is set inside of get_socket(). Move last sock_set_errno() inside
2496 2007-03-09 Simon Goldschmidt
2497 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2498 was allocated too small.
2500 2007-03-06 Simon Goldschmidt
2501 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2502 the stack from concurrent access.
2504 2007-03-06 Frédéric Bernon, Dmitry Potapov
2505 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2506 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2508 2007-03-06 Simon Goldschmidt
2509 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2510 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2512 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2513 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2514 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2515 Allow to do ARP processing for incoming packets inside tcpip_thread
2516 (protecting ARP layer against concurrent access). You can also disable
2517 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2518 Older ports have to use tcpip_ethinput.
2520 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2521 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2522 from pointer target type"
2524 2007-03-05 Frédéric Bernon
2525 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2526 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2528 2007-03-04 Frédéric Bernon
2529 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2532 2007-03-04 Frédéric Bernon
2533 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2535 The api_msg struct stay on the stack (not moved to netconn struct).
2537 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2538 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2539 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2540 Also fixed cast warning in pbuf_alloc()
2542 2007-03-04 Simon Goldschmidt
2543 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2544 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2546 2007-03-03 Frédéric Bernon
2547 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2548 It is static, and never used in udp.c except udp_init().
2550 2007-03-02 Simon Goldschmidt
2551 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2552 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2553 initialized before tcpip_thread is running (e.g. before OS is started)
2555 2007-03-02 Frédéric Bernon
2556 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2559 2007-02-28 Kieran Mansley
2560 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2561 outside the region of the pbuf by pbuf_header()
2563 2007-02-28 Kieran Mansley
2564 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2565 when supplied timeout is also non-zero
2569 2006-12-05 Leon Woestenberg
2570 * CHANGELOG: Mention STABLE-1.2.0 release.
2574 2006-12-01 Christiaan Simons
2575 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2576 Note this is a workaround. Currently I have no other options left.
2578 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2579 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2580 to include/lwip/opt.h.
2581 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2582 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2583 * opt.h: Add above new options.
2585 2006-08-18 Christiaan Simons
2586 * tcp_{in,out}.c: added SNMP counters.
2587 * ipv4/ip.c: added SNMP counters.
2588 * ipv4/ip_frag.c: added SNMP counters.
2590 2006-08-08 Christiaan Simons
2591 * etharp.{c,h}: added etharp_find_addr() to read
2592 (stable) ethernet/IP address pair from ARP table
2594 2006-07-14 Christiaan Simons
2595 * mib_structs.c: added
2596 * include/lwip/snmp_structs.h: added
2597 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2599 2006-07-06 Christiaan Simons
2600 * snmp/asn1_{enc,dec}.c added
2602 * snmp/msg_{in,out}.c added
2603 * include/lwip/snmp_asn1.h added
2604 * include/lwip/snmp_msg.h added
2605 * doc/snmp_agent.txt added
2607 2006-03-29 Christiaan Simons
2608 * inet.c, inet.h: Added platform byteswap support.
2609 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2610 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2614 2006-11-30 Christiaan Simons
2615 * dhcp.c: Fixed false triggers of request_timeout.
2617 2006-11-28 Christiaan Simons
2618 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2620 2006-10-11 Christiaan Simons
2621 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2622 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2623 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2624 identifier from 170 to 136 (bug #17574).
2626 2006-10-10 Christiaan Simons
2627 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2629 2006-08-17 Christiaan Simons
2630 * udp.c: Fixed bug #17200, added check for broadcast
2631 destinations for PCBs bound to a unicast address.
2633 2006-08-07 Christiaan Simons
2634 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2636 2006-06-27 Christiaan Simons
2637 * api_msg.c: Applied patch for cold case (bug #11135).
2638 In accept_function() ensure newconn->callback is always initialized.
2640 2006-06-15 Christiaan Simons
2641 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2642 facilitate printing of mem_size_t and u16_t statistics.
2644 2006-06-14 Christiaan Simons
2645 * api_msg.c: Applied patch #5146 to handle allocation failures
2646 in accept() by Kevin Lawson.
2648 2006-05-26 Christiaan Simons
2649 * api_lib.c: Removed conn->sem creation and destruction
2650 from netconn_write() and added sys_sem_new to netconn_new_*.
2654 2006-03-03 Christiaan Simons
2655 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2656 access and added pbuf_alloc() return value checks.
2658 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2659 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2660 now handled by the checksum routine properly.
2662 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2663 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2664 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2666 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2667 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2668 submitted by Mitrani Hiroshi.
2670 2005-12-15 Christiaan Simons
2671 * inet.c: Disabled the added summing routine to preserve code space.
2673 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2674 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2675 Added Curt McDowell's optimized checksumming routine for future
2676 inclusion. Need to create test case for unaliged, aligned, odd,
2677 even length combination of cases on various endianess machines.
2679 2005-12-09 Christiaan Simons
2680 * inet.c: Rewrote standard checksum routine in proper portable C.
2682 2005-11-25 Christiaan Simons
2683 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2684 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2685 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2687 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2688 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2689 routine by Peter Jolasson.
2690 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2692 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2693 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2694 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2696 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2697 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2699 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2700 * udp.c: UDP pcb->recv() was called even when it was NULL.
2704 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2705 * etharp.*: Disabled multiple packets on the ARP queue.
2706 This clashes with TCP queueing.
2708 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2709 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2710 Halved the ARP period, doubled the period counts.
2711 ETHARP_MAX_PENDING now should be at least 2. This prevents
2712 the counter from reaching 0 right away (which would allow
2713 too little time for ARP responses to be received).
2715 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2716 * dhcp.c: Decline messages were not multicast but unicast.
2717 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2718 Do not try hard to insert arbitrary packet's source address,
2719 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2720 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2721 querying an address will see it appear in the cache (DHCP could
2722 suffer from this when a server invalidly gave an in-use address.)
2723 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2724 comparing network addresses (identifiers), not the network masks
2726 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2727 IP address actually belongs to the network of the given interface.
2729 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2730 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2734 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2735 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2736 even if one is already pending, if the rcv_wnd is above a threshold
2737 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2738 delayed ACK in order to open the window if the stack is only receiving data.
2740 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2741 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2743 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2744 * etharp.c: Make sure the first pbuf queued on an ARP entry
2745 is properly ref counted.
2747 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2748 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2749 warnings about comparison.
2750 * pbuf.c: Stopped compiler complaining of empty if statement
2751 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2752 * tcp.c: Stopped compiler complaining of empty if statement
2753 when LWIP_DEBUGF() empty.
2754 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2755 * inet.c: Added a couple of casts to quiet the compiler.
2756 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2758 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2759 * inet.c: Made data types consistent in inet_ntoa().
2760 Added casts for return values of checksum routines, to pacify compiler.
2761 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2762 Small corrections to some debugging statements, to pacify compiler.
2764 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2765 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2766 * ethernetif.c Updated low_level_output() to match prototype for
2767 netif->linkoutput and changed low_level_input() similarly for consistency.
2768 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2769 of raw_recv() in raw.h and so avoid compiler error.
2770 * sockets.c: Added trivial (int) cast to keep compiler happier.
2771 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2777 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2778 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2779 your cc.h file defines this either 1 or 0. If non-defined,
2781 * .c: Added <string.h> and <errno.h> includes where used.
2782 * etharp.c: Made some array indices unsigned.
2784 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2785 * netif.*: Added netif_set_up()/down().
2786 * dhcp.c: Changes to restart program flow.
2788 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2789 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2790 single-pass lookup for different candidates. Should exploit locality.
2792 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2793 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2794 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2795 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2796 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2800 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2801 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2802 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2803 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2804 is to prefix the 14-bit Ethernet headers with two padding bytes.
2806 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2807 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2808 * etharp.c: Fixed the case where the packet that initiates the ARP request
2809 is not queued, and gets lost. Fixed the case where the packets destination
2810 address is already known; we now always queue the packet and perform an ARP
2817 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2818 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2819 * Fixed two possible NULL references in rare cases.
2825 * Fixed DHCP which did not include the IP address in DECLINE messages.
2829 * etharp.c has been hauled over a bit.
2835 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2836 * Packets sent from ARP queue had invalid source hardware address.
2840 * Pass-by ARP requests do now update the cache.
2844 * No longer dependent on ctype.h.
2845 * New socket options.
2846 * Raw IP pcb support.
2852 * Some debug formatters and casts fixed.
2853 * Numereous fixes in PPP.
2857 * DEBUGF now is LWIP_DEBUGF
2858 * pbuf_dechain() has been re-enabled.
2859 * Mentioned the changed use of CVS branches in README.
2865 * Fixed pool pbuf memory leak in pbuf_alloc().
2866 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2867 Reported by Savin Zlobec.
2869 * PBUF_POOL chains had their tot_len field not set for non-first
2870 pbufs. Fixed in pbuf_alloc().
2874 * Added PPP stack contributed by Marc Boucher
2878 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2880 * ARP queueuing now queues the latest packet instead of the first.
2881 This is the RFC recommended behaviour, but can be overridden in
2888 * TCP has been fixed to deal with the new use of the pbuf->ref
2891 * DHCP dhcp_inform() crash bug fixed.
2895 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2896 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2897 Implemented by David Haas.
2903 * The packet buffer implementation has been enhanced to support
2904 zero-copy and copy-on-demand for packet buffers which have their
2905 payloads in application-managed memory.
2906 Implemented by David Haas.
2908 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2909 if an outgoing packet can be directly sent on the link, or perform
2910 a copy-on-demand when necessary.
2912 The application can safely assume the packet is sent, and the RAM
2913 is available to the application directly after calling udp_send()
2914 or similar function.
2918 * ARP_QUEUEING should now correctly work for all cases, including
2920 Implemented by Leon Woestenberg.
2924 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2925 to a '0.0.0.0' IP address.
2927 * The packet buffer implementation is changed. The pbuf->ref counter
2928 meaning has changed, and several pbuf functions have been
2929 adapted accordingly.
2931 * netif drivers have to be changed to set the hardware address length field
2932 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2933 See the contrib/ports/c16x cs8900 driver as a driver example.
2935 * netif's have a dhcp field that must be initialized to NULL by the driver.
2936 See the contrib/ports/c16x cs8900 driver as a driver example.
2938 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2939 logged in CVS but have not been explained here.
2941 (0.5.3) Changes since version 0.5.2
2945 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2946 threads because it wasn't protected by semaphores.
2950 * struct ip_addr now packed.
2952 * The name of the time variable in arp.c has been changed to ctime
2953 to avoid conflicts with the time() function.
2955 (0.5.2) Changes since version 0.5.1
2959 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2963 * A bug in tcp_parseopt() could cause the stack to hang because of a
2964 malformed TCP option.
2966 * The address of new connections in the accept() function in the BSD
2967 socket library was not handled correctly.
2969 * pbuf_dechain() did not update the ->tot_len field of the tail.
2971 * Aborted TCP connections were not handled correctly in all
2976 * All protocol header structs are now packed.
2978 * The ->len field in the tcp_seg structure now counts the actual
2979 amount of data, and does not add one for SYN and FIN segments.
2981 (0.5.1) Changes since version 0.5.0
2985 * Possible to run as a user process under Linux.
2987 * Preliminary support for cross platform packed structs.
2989 * ARP timer now implemented.
2993 * TCP output queue length was badly initialized when opening
2996 * TCP delayed ACKs were not sent correctly.
2998 * Explicit initialization of BSS segment variables.
3000 * read() in BSD socket library could drop data.
3002 * Problems with memory alignment.
3004 * Situations when all TCP buffers were used could lead to
3007 * TCP MSS option wasn't parsed correctly.
3009 * Problems with UDP checksum calculation.
3011 * IP multicast address tests had endianess problems.
3013 * ARP requests had wrong destination hardware address.
3017 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3019 * A ->linkoutput() member was added to struct netif.
3021 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3023 * ntoh* macros are now null definitions for big endian CPUs.
3025 (0.5.0) Changes since version 0.4.2
3029 * Redesigned operating system emulation layer to make porting easier.
3031 * Better control over TCP output buffers.
3033 * Documenation added.
3037 * Locking issues in buffer management.
3039 * Bugfixes in the sequential API.
3041 * IP forwarding could cause memory leakage. This has been fixed.
3045 * Directory structure somewhat changed; the core/ tree has been
3048 (0.4.2) Changes since version 0.4.1
3052 * Experimental ARP implementation added.
3054 * Skeleton Ethernet driver added.
3056 * Experimental BSD socket API library added.
3060 * In very intense situations, memory leakage could occur. This has
3065 * Variables named "data" and "code" have been renamed in order to
3066 avoid name conflicts in certain compilers.
3068 * Variable++ have in appliciable cases been translated to ++variable
3069 since some compilers generate better code in the latter case.
3071 (0.4.1) Changes since version 0.4
3075 * TCP: Connection attempts time out earlier than data
3076 transmissions. Nagle algorithm implemented. Push flag set on the
3077 last segment in a burst.
3079 * UDP: experimental support for UDP-Lite extensions.
3083 * TCP: out of order segments were in some cases handled incorrectly,
3084 and this has now been fixed. Delayed acknowledgements was broken
3085 in 0.4, has now been fixed. Binding to an address that is in use
3086 now results in an error. Reset connections sometimes hung an
3087 application; this has been fixed.
3089 * Checksum calculation sometimes failed for chained pbufs with odd
3090 lengths. This has been fixed.
3092 * API: a lot of bug fixes in the API. The UDP API has been improved
3093 and tested. Error reporting and handling has been
3094 improved. Logical flaws and race conditions for incoming TCP
3095 connections has been found and removed.
3097 * Memory manager: alignment issues. Reallocating memory sometimes
3098 failed, this has been fixed.
3100 * Generic library: bcopy was flawed and has been fixed.
3104 * API: all datatypes has been changed from generic ones such as
3105 ints, to specified ones such as u16_t. Functions that return
3106 errors now have the correct type (err_t).
3108 * General: A lot of code cleaned up and debugging code removed. Many
3109 portability issues have been fixed.
3111 * The license was changed; the advertising clause was removed.
3115 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3116 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3119 (0.4) Changes since version 0.3.1
3121 * Memory management has been radically changed; instead of
3122 allocating memory from a shared heap, memory for objects that are
3123 rapidly allocated and deallocated is now kept in pools. Allocation
3124 and deallocation from those memory pools is very fast. The shared
3125 heap is still present but is used less frequently.
3127 * The memory, memory pool, and packet buffer subsystems now support
3128 4-, 2-, or 1-byte alignment.
3130 * "Out of memory" situations are handled in a more robust way.
3132 * Stack usage has been reduced.
3134 * Easier configuration of lwIP parameters such as memory usage,
3135 TTLs, statistics gathering, etc. All configuration parameters are
3136 now kept in a single header file "lwipopts.h".
3138 * The directory structure has been changed slightly so that all
3139 architecture specific files are kept under the src/arch
3142 * Error propagation has been improved, both in the protocol modules
3145 * The code for the RTXC architecture has been implemented, tested
3148 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3149 the Internet checksum modules.
3151 * Bugs related to porting between a 32-bit and a 16-bit architecture
3152 have been found and corrected.
3154 * The license has been changed slightly to conform more with the
3155 original BSD license, including the advertisement clause.
3157 (0.3.1) Changes since version 0.3
3159 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3160 RAM never returned the RAM when the pbuf was deallocated.
3162 * TCP congestion control, window updates and retransmissions did not
3163 work correctly. This has now been fixed.
3165 * Bugfixes in the API.
3167 (0.3) Changes since version 0.2
3169 * New and improved directory structure. All include files are now
3170 kept in a dedicated include/ directory.
3172 * The API now has proper error handling. A new function,
3173 netconn_err(), now returns an error code for the connection in
3176 * Improvements in the memory management subsystem. The system now
3177 keeps a pointer to the lowest free memory block. A new function,
3178 mem_malloc2() tries to allocate memory once, and if it fails tries
3179 to free some memory and retry the allocation.
3181 * Much testing has been done with limited memory
3182 configurations. lwIP now does a better job when overloaded.
3184 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3186 * Many bugfixes in the TCP code:
3188 - Fixed a bug in tcp_close().
3190 - The TCP receive window was incorrectly closed when out of
3191 sequence segments was received. This has been fixed.
3193 - Connections are now timed-out of the FIN-WAIT-2 state.
3195 - The initial congestion window could in some cases be too
3196 large. This has been fixed.
3198 - The retransmission queue could in some cases be screwed up. This
3201 - TCP RST flag now handled correctly.
3203 - Out of sequence data was in some cases never delivered to the
3204 application. This has been fixed.
3206 - Retransmitted segments now contain the correct acknowledgment
3207 number and advertised window.
3209 - TCP retransmission timeout backoffs are not correctly computed
3210 (ala BSD). After a number of retransmissions, TCP now gives up
3213 * TCP connections now are kept on three lists, one for active
3214 connections, one for listening connections, and one for
3215 connections that are in TIME-WAIT. This greatly speeds up the fast
3216 timeout processing for sending delayed ACKs.
3218 * TCP now provides proper feedback to the application when a
3219 connection has been successfully set up.
3221 * More comments have been added to the code. The code has also been
3222 somewhat cleaned up.
3224 (0.2) Initial public release.