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Revision 1.613 - (show annotations) (download)
Mon Jul 4 19:33:33 2011 UTC (12 years, 5 months ago) by goldsimon
Branch: MAIN
CVS Tags: cvs-repository-moved-to-git, HEAD
Changes since 1.612: +3 -0 lines
Fixed documentation after changing sys arch prototypes for 1.4.0

1 HISTORY
2
3 (CVS HEAD)
4
5 * [Enter new changes just after this line - do not remove this line]
6
7 ++ New features:
8
9 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
10 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
11 pcb->state != LISTEN
12
13 2011-05-25: Simon Goldschmidt
14 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
15 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
16 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
17 code so that the code is more readable.
18
19 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
20 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
21 Ivan! (this is work in progress: we're just post release anyway :-)
22
23 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
24 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
25 memory message
26
27
28 ++ Bugfixes:
29
30 2011-07-04: Simon Goldschmidt
31 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
32
33 2011-06-26: Simon Goldschmidt
34 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
35 updating its documentation only.
36
37 2011-06-26: Simon Goldschmidt
38 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
39 unaligned pointer.
40
41 2011-06-26: Simon Goldschmidt
42 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
43
44
45
46 (STABLE-1.4.0)
47
48 ++ New features:
49
50 2011-03-27: Simon Goldschmidt
51 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
52 calculate it in tcp_zero_window_probe (the only place where it was used).
53
54 2010-11-21: Simon Goldschmidt
55 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
56 (fixes bug #31525).
57
58 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
59 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
60 IP_MULTICAST_LOOP at socket- and raw-API level.
61
62 2010-06-16: Simon Goldschmidt
63 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
64 link-layer-addressed UDP traffic to be received while a netif is down (just
65 like DHCP during configuration)
66
67 2010-05-22: Simon Goldschmidt
68 * many many files: bug #27352: removed packing from ip_addr_t, the packed
69 version is now only used in protocol headers. Added global storage for
70 current src/dest IP address while in input functions.
71
72 2010-05-16: Simon Goldschmidt
73 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
74 calculation (and use them throughout the stack where applicable)
75
76 2010-05-16: Simon Goldschmidt
77 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
78 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
79
80 2010-05-16: Simon Goldschmidt
81 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
82 MEMP pool instead of the heap
83
84 2010-05-13: Simon Goldschmidt
85 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
86 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
87 packets to more than one pcb.
88
89 2010-05-02: Simon Goldschmidt
90 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
91 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
92
93 2010-04-30: Simon Goldschmidt
94 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
95 take a precalculated checksum, added pbuf_fill_chksum() to copy data
96 into a pbuf and at the same time calculating the checksum for that data
97
98 2010-04-29: Simon Goldschmidt
99 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
100 2-byte-aligned IP addresses and MAC addresses
101
102 2010-04-28: Patch by Bill Auerbach
103 * ip.c: Inline generating IP checksum to save a function call
104
105 2010-04-14: Simon Goldschmidt
106 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
107 tcpip_thread processes messages or timeouts to implement a watchdog.
108
109 2010-03-28: Simon Goldschmidt
110 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
111 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
112
113 2010-03-27: Simon Goldschmidt
114 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
115 etharp_query to prevent unnecessary function calls (inspired by
116 patch #7135).
117
118 2010-03-20: Simon Goldschmidt
119 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
120 since the linker cannot do this automatically to save space.
121
122 2010-03-20: Simon Goldschmidt
123 * opt.h, etharp.c/.h: Added support for static ARP table entries
124
125 2010-03-14: Simon Goldschmidt
126 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
127 when creating TCP segments, not when (re-)transmitting them.
128
129 2010-03-07: Simon Goldschmidt
130 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
131 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
132 This should speed up receiving data on sockets as the select code in
133 event_callback is only executed when select is waiting.
134
135 2010-03-06: Simon Goldschmidt
136 * tcp_out.c: task #7013 (Create option to have all packets delivered to
137 netif->output in one piece): Always copy to try to create single pbufs
138 in tcp_write.
139
140 2010-03-06: Simon Goldschmidt
141 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
142 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
143 for tcp netconns to receive pbufs, not netbufs; use that function
144 for tcp sockets.
145
146 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
147 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
148 Work on tcp_enqueue: Don't waste memory when chaining segments,
149 added option TCP_OVERSIZE to prevent creating many small pbufs when
150 calling tcp_write with many small blocks of data. Instead, pbufs are
151 allocated larger than needed and the space is used for later calls to
152 tcp_write.
153
154 2010-02-21: Simon Goldschmidt
155 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
156 debugging.
157
158 2010-02-21: Simon Goldschmidt
159 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
160 implementation of tcp to make API usage cleare to application programmers
161
162 2010-02-14: Simon Goldschmidt/Stephane Lesage
163 * ip_addr.h: Improved some defines working on ip addresses, added faster
164 macro to copy addresses that cannot be NULL
165
166 2010-02-13: Simon Goldschmidt
167 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
168 blocking send operation)
169
170 2010-02-12: Simon Goldschmidt
171 * sockets.c/.h: Added a minimal version of posix fctl() to have a
172 standardised way to set O_NONBLOCK for nonblocking sockets.
173
174 2010-02-12: Simon Goldschmidt
175 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
176 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
177 and dhcp work with user-allocated structs instead of callin mem_malloc
178
179 2010-02-12: Simon Goldschmidt/Jeff Barber
180 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
181 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
182
183 2010-02-12: Simon Goldschmidt
184 * sys layer: task #10139 (Prefer statically allocated memory): converted
185 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
186 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
187 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
188 to let sys.h use binary semaphores instead of mutexes - as before)
189
190 2010-02-09: Simon Goldschmidt (Simon Kallweit)
191 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
192 (Restart system timeout handling)
193
194 2010-02-09: Simon Goldschmidt
195 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
196 netif.c) - loopif does not have to be created by the port any more,
197 just define LWIP_HAVE_LOOPIF to 1.
198
199 2010-02-08: Simon Goldschmidt
200 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
201 inet_ntoa_r/ipaddr_ntoa_r
202
203 2010-02-08: Simon Goldschmidt
204 * netif.h: Added netif_s/get_igmp_mac_filter() macros
205
206 2010-02-05: Simon Goldschmidt
207 * netif.h: Added function-like macros to get/set the hostname on a netif
208
209 2010-02-04: Simon Goldschmidt
210 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
211 make changing the actual implementation behind the typedef easier.
212
213 2010-02-01: Simon Goldschmidt
214 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
215 for allocating memory when getaddrinfo() is called.
216
217 2010-01-31: Simon Goldschmidt
218 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
219 them once instead of parsing for every option. This also removes
220 the need for mem_malloc from dhcp_recv and makes it possible to
221 correctly retrieve the BOOTP file.
222
223 2010-01-30: simon Goldschmidt
224 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
225 the sockets array.
226
227 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
228 * api.h, api_msg.c, sockets.c: Added except set support in select
229 (patch #6860)
230
231 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
232 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
233 Add non-blocking support for connect (partly from patch #6860),
234 plus many cleanups in socket & netconn API.
235
236 2010-01-27: Simon Goldschmidt
237 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
238 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
239
240 2010-01-26: Simon Goldschmidt
241 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
242
243 2010-01-14: Simon Goldschmidt
244 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
245 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
246
247 2010-01-13: Simon Goldschmidt
248 * mem.c: The heap now may be moved to user-defined memory by defining
249 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
250 (patch #6966 and bug #26133)
251
252 2010-01-10: Simon Goldschmidt (Bill Auerbach)
253 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
254 separate arrays)
255
256 2010-01-10: Simon Goldschmidt
257 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
258 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
259
260 2009-12-31: Simon Goldschmidt
261 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
262 added timers.c/.h: Separated timer implementation from semaphore/mbox
263 implementation, moved timer implementation to timers.c/.h, timers are
264 now only called from tcpip_thread or by explicitly checking them.
265 (TASK#7235)
266
267 2009-12-27: Simon Goldschmidt
268 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
269 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
270
271
272 ++ Bugfixes:
273
274 2011-04-20: Simon Goldschmidt
275 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
276
277 2011-04-13: Simon Goldschmidt
278 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
279 using ports in the IANA private/dynamic range (49152 through 65535).
280
281 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
282 * etharp.h/.c: Fixed broken VLAN support.
283
284 2011-03-27: Simon Goldschmidt
285 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
286 pcbs) by checking if the pcb was bound (local_port != 0).
287
288 2011-03-27: Simon Goldschmidt
289 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
290
291 2011-03-27: Simon Goldschmidt
292 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
293 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
294
295 2011-03-27: Simon Goldschmidt
296 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
297 is present never times out) by starting retransmission timer before checking
298 route.
299
300 2011-03-22: Simon Goldschmidt
301 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
302 calling sio_read_abort() if the file descriptor is valid.
303
304 2011-03-14: Simon Goldschmidt
305 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
306 more than once can render a socket useless) since it mainly involves changing
307 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
308
309 2011-03-13: Simon Goldschmidt
310 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
311 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
312 use EALRADY instead of -1
313
314 2011-03-13: Simon Goldschmidt
315 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
316 connection has been aborted by err_tcp (since this is not a normal closing
317 procedure).
318
319 2011-03-13: Simon Goldschmidt
320 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
321 with pcb->state != CLOSED
322
323 2011-02-17: Simon Goldschmidt
324 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
325 documentation
326
327 2011-02-17: Simon Goldschmidt
328 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
329
330 2011-01-24: Simon Goldschmidt
331 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
332
333 2010-12-02: Simon Goldschmidt
334 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
335
336 2010-11-23: Simon Goldschmidt
337 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
338 LWIP_SO_RCVBUF and ioctl/FIONREAD.
339
340 2010-11-23: Simon Goldschmidt
341 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
342 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
343
344 2010-11-23: Simon Goldschmidt
345 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
346 refusing 'refused_data' again.
347
348 2010-11-22: Simon Goldschmidt
349 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
350 after a successful nonblocking connection.
351
352 2010-11-22: Simon Goldschmidt
353 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
354 must be sent link-local
355
356 2010-11-22: Simon Goldschmidt
357 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
358 LWIP_TIMERS==0
359
360 2010-11-20: Simon Goldschmidt
361 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
362
363 2010-11-20: Simon Goldschmidt
364 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
365 resemble other stacks.
366
367 2010-11-20: Simon Goldschmidt
368 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
369 no-copy TCP writes will never succeed.
370
371 2010-11-20: Simon Goldschmidt
372 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
373 not match documentation: return ERR_ARG instead of ERR_VAL if not
374 initialized or wrong argument.
375
376 2010-10-20: Simon Goldschmidt
377 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
378
379 2010-10-05: Simon Goldschmidt
380 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
381 replugging the network cable after an AutoIP address was assigned.
382
383 2010-08-10: Simon Goldschmidt
384 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
385
386 2010-08-03: Simon Goldschmidt
387 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
388
389 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
390 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
391 endian architectures)
392
393 2010-07-28: Simon Goldschmidt
394 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
395 disabled.
396
397 2010-07-27: Simon Goldschmidt
398 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
399 harm but never did anything
400
401 2010-07-21: Simon Goldschmidt
402 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
403 add IP options)
404
405 2010-07-16: Kieran Mansley
406 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
407
408 2010-07-10: Simon Goldschmidt
409 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
410
411 2010-06-30: Simon Goldschmidt
412 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
413 netconn_delete)
414
415 2010-06-28: Kieran Mansley
416 * timers.c remove unportable printing of C function pointers
417
418 2010-06-24: Simon Goldschmidt
419 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
420 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
421
422 2010-06-24: Simon Goldschmidt
423 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
424 implemented shutdown at socket level.
425
426 2010-06-21: Simon Goldschmidt
427 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
428 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
429 custom pbufs that reference other (original) pbufs. Additionally set
430 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
431
432 2010-06-15: Simon Goldschmidt
433 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
434
435 2010-06-14: Simon Goldschmidt
436 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
437
438 2010-06-12: Simon Goldschmidt
439 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
440 state
441
442 2010-05-17: Simon Goldschmidt
443 * netdb.c: Correctly NULL-terminate h_addr_list
444
445 2010-05-16: Simon Goldschmidt
446 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
447 "symbol already defined" i.e. when linking to winsock
448
449 2010-05-05: Simon Goldschmidt
450 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
451 overflow)
452
453 2010-04-21: Simon Goldschmidt
454 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
455 connection)
456
457 2010-03-28: Luca Ceresoli
458 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
459
460 2010-03-27: Luca Ceresoli
461 * mib2.c: patch #7130: remove meaningless const qualifiers
462
463 2010-03-26: Simon Goldschmidt
464 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
465
466 2010-03-26: Simon Goldschmidt
467 * various files: Fixed compiling with different options disabled (TCP/UDP),
468 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
469
470 2010-03-25: Simon Goldschmidt
471 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
472
473 2010-03-25: Simon Goldschmidt
474 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
475 overrunning our rcv_wnd in ooseq case.
476
477 2010-03-22: Simon Goldschmidt
478 * tcp.c: tcp_listen() did not copy the pcb's prio.
479
480 2010-03-19: Simon Goldschmidt
481 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
482
483 2010-03-14: Simon Goldschmidt
484 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
485 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
486 and basing PBUF_LINK_HLEN on it.
487
488 2010-03-08: Simon Goldschmidt
489 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
490 when assiging routable address): when checking incoming packets and
491 aborting existing connection on address change, filter out link-local
492 addresses.
493
494 2010-03-06: Simon Goldschmidt
495 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
496
497 2010-03-06: Simon Goldschmidt
498 * ipv4/ip.c: Don't try to forward link-local addresses
499
500 2010-03-06: Simon Goldschmidt
501 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
502 addresses to gw
503
504 2010-03-05: Simon Goldschmidt
505 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
506 and state.
507
508 2010-03-05: Simon Goldschmidt
509 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
510 into multiple calls to tcp_write.
511
512 2010-02-21: Simon Goldschmidt
513 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
514 the implementation of DNS_USES_STATIC_BUF==1)
515
516 2010-02-20: Simon Goldschmidt
517 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
518 close() vs. shutdown(). Now the application does not get any more
519 recv callbacks after calling tcp_close(). Added tcp_shutdown().
520
521 2010-02-19: Simon Goldschmidt
522 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
523 confusion with realloc()
524
525 2010-02-15: Simon Goldschmidt/Stephane Lesage
526 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
527 (fixes bug #28899)
528
529 2010-02-14: Simon Goldschmidt
530 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
531 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
532 admin-status of a netif are up
533
534 2010-02-14: Simon Goldschmidt
535 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
536 reception and is not really necessary
537
538 2010-02-14: Simon Goldschmidt
539 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
540 request was directed as us (RFC 826, Packet Reception), otherwise
541 only update existing entries; internalized some functions
542
543 2010-02-14: Simon Goldschmidt
544 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
545 disabled on netif used for PPPoE) by adding a new netif flag
546 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
547 device but prevents usage of ARP (so that ethernet_input can be used
548 for PPPoE).
549
550 2010-02-12: Simon Goldschmidt
551 * netif.c: netif_set_link_up/down: only do something if the link state
552 actually changes
553
554 2010-02-12: Simon Goldschmidt/Stephane Lesage
555 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
556 connect)
557
558 2010-02-12: Simon Goldschmidt
559 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
560
561 2010-02-09: Simon Goldschmidt
562 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
563 (recv() makes receive window update for data that wasn't received by
564 application)
565
566 2010-02-09: Simon Goldschmidt/Stephane Lesage
567 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
568 or any netconn_recv() error)
569
570 2010-02-09: Simon Goldschmidt
571 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
572
573 2010-02-09: Simon Goldschmidt
574 * netif.c: For loopback packets, adjust the stats- and snmp-counters
575 for the loopback netif.
576
577 2010-02-08: Simon Goldschmidt
578 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
579 since they are not used anywhere else.
580
581 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
582 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
583 (patch from bug #28798)
584
585 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
586 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
587 another bug when LWIP_RAND() returns zero.
588
589 2010-02-04: Simon Goldschmidt
590 * nearly every file: Use macros defined in ip_addr.h (some of them new)
591 to work with IP addresses (preparation for bug #27352 - Change ip_addr
592 from struct to typedef (u32_t) - and better code).
593
594 2010-01-31: Simon Goldschmidt
595 * netif.c: Don't call the link-callback from netif_set_up/down() since
596 this invalidly retriggers DHCP.
597
598 2010-01-29: Simon Goldschmidt
599 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
600 portability file inet.h and its contents from the stack: moved htonX-
601 functions to def.h (and the new def.c - they are not ipv4 dependent),
602 let inet.h depend on ip_addr.h and not the other way round.
603 This fixes bug #28732.
604
605 2010-01-28: Kieran Mansley
606 * tcp.c: Ensure ssthresh >= 2*MSS
607
608 2010-01-27: Simon Goldschmidt
609 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
610 callback can lead to accessing unallocated memory. As a consequence,
611 ERR_ABRT means the application has called tcp_abort()!
612
613 2010-01-25: Simon Goldschmidt
614 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
615 not implemented in SNMP): write-only or not-accessible are still
616 returned by getnext (though not by get)
617
618 2010-01-24: Simon Goldschmidt
619 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
620 not use reserved C/C++ keywords
621
622 2010-01-23: Simon Goldschmidt
623 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
624 than 1 ms
625
626 2010-01-21: Simon Goldschmidt
627 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
628 if tcp_enqueue fails) both in raw- and netconn-API
629
630 2010-01-19: Simon Goldschmidt
631 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
632
633 2010-01-18: Iordan Neshev/Simon Goldschmidt
634 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
635 bugfix backports from 2.4.x.
636
637 2010-01-18: Simon Goldschmidt
638 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
639
640 2010-01-17: Simon Goldschmidt
641 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
642 task #10102: "netconn: clean up conn->err threading issues" by adding
643 error return value to struct api_msg_msg
644
645 2010-01-17: Simon Goldschmidt
646 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
647 to return err_t (bugs #27709 and #28087)
648
649 2010-01-14: Simon Goldschmidt
650 * ...: Use typedef for function prototypes throughout the stack.
651
652 2010-01-13: Simon Goldschmidt
653 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
654 window = 0) by correctly draining recvmbox/acceptmbox
655
656 2010-01-11: Simon Goldschmidt
657 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
658 erroneous callbacks) by copying the code from recent pppd
659
660 2010-01-10: Simon Goldschmidt
661 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
662
663 2010-01-10: Simon Goldschmidt
664 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
665
666 2010-01-08: Simon Goldschmidt
667 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
668
669 2010-01-08: Simon Goldschmidt
670 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
671 passed to dns_local_addhost() might be volatile
672
673 2010-01-07: Simon Goldschmidt
674 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
675
676 2010-01-06: Simon Goldschmidt
677 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
678
679 2009-12-31: Simon Goldschmidt
680 * many ppp files: Reorganised PPP source code from ucip structure to pppd
681 structure to easily compare our code against the pppd code (around v2.3.1)
682
683 2009-12-27: Simon Goldschmidt
684 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
685 unit test
686
687
688 (STABLE-1.3.2)
689
690 ++ New features:
691
692 2009-10-27 Simon Goldschmidt/Stephan Lesage
693 * netifapi.c/.h: Added netifapi_netif_set_addr()
694
695 2009-10-07 Simon Goldschmidt/Fabian Koch
696 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
697 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
698
699 2009-08-26 Simon Goldschmidt/Simon Kallweit
700 * slipif.c/.h: bug #26397: SLIP polling support
701
702 2009-08-25 Simon Goldschmidt
703 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
704 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
705
706 2009-08-25 Simon Goldschmidt
707 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
708
709 2009-08-24 Jakob Stoklund Olesen
710 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
711 to netif_set_link_up().
712
713 2009-08-23 Simon Goldschmidt
714 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
715 to a human-readable string.
716
717 ++ Bugfixes:
718
719 2009-12-24: Kieran Mansley
720 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
721 (BUG#28241)
722
723 2009-12-06: Simon Goldschmidt
724 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
725 be statically allocated (like in ucip)
726
727 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
728 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
729
730 2009-12-03: Simon Goldschmidt
731 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
732 could have non-zero length
733
734 2009-12-02: Simon Goldschmidt
735 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
736 tcp_input_pcb until after calling the pcb's callbacks
737
738 2009-11-29: Simon Goldschmidt
739 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
740 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
741
742 2009-11-29: Simon Goldschmidt
743 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
744 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
745
746 2009-11-26: Simon Goldschmidt
747 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
748 segment
749
750 2009-11-26: Simon Goldschmidt
751 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
752 algorithm at PCB level
753
754 2009-11-22: Simon Goldschmidt
755 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
756
757 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
758 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
759 reusing time-wait pcb
760
761 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
762 * sockets.c: Fixed bug #28062: Data received directly after accepting
763 does not wake up select
764
765 2009-11-11: Simon Goldschmidt
766 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
767
768 2009-10-30: Simon Goldschmidt
769 * opt.h: Increased default value for TCP_MSS to 536, updated default
770 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
771
772 2009-10-28: Kieran Mansley
773 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
774 to follow algorithm from TCP/IP Illustrated
775
776 2009-10-27: Kieran Mansley
777 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
778
779 2009-10-25: Simon Goldschmidt
780 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
781 pcb->recv is NULL to keep rcv_wnd correct)
782
783 2009-10-25: Simon Goldschmidt
784 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
785
786 2009-10-23: Simon Goldschmidt (David Empson)
787 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
788
789 2009-10-21: Simon Goldschmidt
790 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
791 trailing 1 byte len (SYN/FIN)
792
793 2009-10-21: Simon Goldschmidt
794 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
795
796 2009-10-19: Simon Goldschmidt
797 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
798 conditional code to assert where applicable), check pbuf length before
799 testing for valid reply
800
801 2009-10-19: Simon Goldschmidt
802 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
803 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
804
805 2009-10-16: Simon Goldschmidt
806 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
807 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
808 enabled
809
810 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
811 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
812
813 2009-10-15: Simon Goldschmidt
814 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
815 timeout
816
817 2009-10-15: Simon Goldschmidt
818 * autoip.c: Fixed bug #27704: autoip starts with wrong address
819 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
820 of network byte order
821
822 2009-10-11 Simon Goldschmidt (Jörg Kesten)
823 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
824 which are not consecutive when retransmitting unacked segments
825
826 2009-10-09 Simon Goldschmidt
827 * opt.h: Fixed default values of some stats to only be enabled if used
828 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
829
830 2009-08-30 Simon Goldschmidt
831 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
832 function" by checking for loopback before calling ip_frag
833
834 2009-08-25 Simon Goldschmidt
835 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
836
837 2009-08-23 Simon Goldschmidt
838 * ppp.c: bug #27078: Possible memory leak in pppInit()
839
840 2009-08-23 Simon Goldschmidt
841 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
842 is error.
843
844 2009-08-23 Simon Goldschmidt
845 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
846 Fixed wrong parenthesis, added check in init.c
847
848 2009-08-23 Simon Goldschmidt
849 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
850
851 2009-08-23 Simon Goldschmidt
852 * many ppp files: bug #27267: Added include to string.h where needed
853
854 2009-08-23 Simon Goldschmidt
855 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
856
857
858 (STABLE-1.3.1)
859
860 ++ New features:
861
862 2009-05-10 Simon Goldschmidt
863 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
864 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
865 one pbuf to help MACs that don't support scatter-gather DMA.
866
867 2009-05-09 Simon Goldschmidt
868 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
869 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
870
871 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
872 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
873 extended info about the currently received packet.
874
875 2009-04-27 Simon Goldschmidt
876 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
877
878 2009-04-25 Simon Goldschmidt
879 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
880 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
881
882 2009-04-21 Simon Goldschmidt
883 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
884 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
885 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
886 as an external function for lookup.
887
888 2009-04-15 Simon Goldschmidt
889 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
890
891 2009-03-31 Kieran Mansley
892 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
893 TCP timestamp options, off by default. Rework tcp_enqueue() to
894 take option flags rather than specified option data
895
896 2009-02-18 Simon Goldschmidt
897 * cc.h: Added printf formatter for size_t: SZT_F
898
899 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
900 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
901 pings
902
903 2009-02-12 Simon Goldschmidt
904 * init.h: Added LWIP_VERSION to get the current version of the stack
905
906 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
907 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
908 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
909 is otherwise used)
910
911 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
912 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
913 is only used by UDPLITE at present, so conditionalise it.
914
915 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
916 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
917 "seed" address. This should reduce AUTOIP conflicts if
918 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
919
920 2008-10-02 Jonathan Larmour and Rishi Khan
921 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
922 socket.
923
924 2008-06-30 Simon Goldschmidt
925 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
926 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
927 mem_free to run between mem_malloc iterations. Added illegal counter for
928 mem stats.
929
930 2008-06-27 Simon Goldschmidt
931 * stats.h/.c, some other files: patch #6483: stats module improvement:
932 Added defines to display each module's statistic individually, added stats
933 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
934
935 2008-06-17 Simon Goldschmidt
936 * err.h: patch #6459: Made err_t overridable to use a more efficient type
937 (define LWIP_ERR_T in cc.h)
938
939 2008-06-17 Simon Goldschmidt
940 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
941 to loopif
942
943 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
944 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
945 modified version of patch # 6370: Moved loopif code to netif.c so that
946 loopback traffic is supported on all netifs (all local IPs).
947 Added option to limit loopback packets for each netifs.
948
949
950 ++ Bugfixes:
951 2009-08-12 Kieran Mansley
952 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
953 out of window or out of order properly
954
955 2009-08-12 Kieran Mansley
956 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
957
958 2009-07-28 Simon Goldschmidt
959 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
960
961 2009-07-27 Kieran Mansley
962 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
963
964 2009-07-09 Kieran Mansley
965 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
966 recv_avail and don't increment counters until message successfully
967 sent to mbox
968
969 2009-06-25 Kieran Mansley
970 * api_msg.c api.h: BUG26722: initialise netconn write variables
971 in netconn_alloc
972
973 2009-06-25 Kieran Mansley
974 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
975
976 2009-06-25 Kieran Mansley
977 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
978 simultaneous close behaviour, and make snd_nxt have the same meaning
979 as in the RFCs.
980
981 2009-05-12 Simon Goldschmidt
982 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
983 arp_table / uses etharp_query" by adding etharp_gratuitous()
984
985 2009-05-12 Simon Goldschmidt
986 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
987 to the IP header (used by igmp_ip_output_if)
988
989 2009-05-06 Simon Goldschmidt
990 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
991 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
992
993 2009-05-05 Simon Goldschmidt
994 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
995 to crash
996
997 2009-05-04 Simon Goldschmidt
998 * init.c: snmp was not initialized in lwip_init()
999
1000 2009-05-04 Frédéric Bernon
1001 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1002
1003 2009-05-03 Simon Goldschmidt
1004 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1005 (and unsent->next == NULL)
1006
1007 2009-05-02 Simon Goldschmidt
1008 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1009 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1010
1011 2009-05-02 Simon Goldschmidt
1012 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1013
1014 2009-05-01 Simon Goldschmidt
1015 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1016
1017 2009-05-01 Simon Goldschmidt
1018 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1019
1020 2009-04-29 Frédéric Bernon
1021 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1022 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1023 of broadcast packets even when this option wasn't set. Port maintainers
1024 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1025 If you want this option also filter broadcast on recv operations, you also
1026 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1027
1028 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1029 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1030 DHCP/AUTOIP cooperation
1031
1032 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1033 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1034 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1035 right place in tcp_output and tcp_rexmit).
1036
1037 2009-04-25 Simon Goldschmidt
1038 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1039 when debugging": memp_sizes contained the wrong sizes (including sanity
1040 regions); memp pools for MEM_USE_POOLS were too small
1041
1042 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1043 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1044 behavior, with with ip address string not ended by a '\0', a space or a
1045 end of line)
1046
1047 2009-04-19 Simon Goldschmidt
1048 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1049 pcb->err is called, not pcb->connected (with an error code).
1050
1051 2009-04-19 Simon Goldschmidt
1052 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1053 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1054
1055 2009-04-19 Simon Goldschmidt
1056 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1057 in the header pbuf, not the data pbuf)
1058
1059 2009-04-18 Simon Goldschmidt
1060 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1061
1062 2009-04-15 Simon Goldschmidt
1063 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1064
1065 2009-04-15 Simon Goldschmidt
1066 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1067
1068 2009-04-15 Simon Goldschmidt
1069 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1070 ip_hinted_output() (for smaller code mainly)
1071
1072 2009-04-15 Simon Goldschmidt
1073 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1074
1075 2009-04-15 Simon Goldschmidt
1076 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1077 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1078 is big enough in dhcp_start
1079
1080 2009-04-15 Simon Goldschmidt
1081 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1082
1083 2009-04-15 Simon Goldschmidt
1084 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1085
1086 2009-04-15 Simon Goldschmidt
1087 * sockets.c: bug #26121: set_errno can be overridden
1088
1089 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1090 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1091 LWIP_TCP==0
1092
1093 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1094 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1095 macros in tcp.h
1096
1097 2009-03-31 Kieran Mansley
1098 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1099 updates are calculated and sent (BUG20515)
1100
1101 * tcp_in.c: cope with SYN packets received during established states,
1102 and retransmission of initial SYN.
1103
1104 * tcp_out.c: set push bit correctly when tcp segments are merged
1105
1106 2009-03-27 Kieran Mansley
1107 * tcp_out.c set window correctly on probes (correcting change made
1108 yesterday)
1109
1110 2009-03-26 Kieran Mansley
1111 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1112 connections where no reset required (bug #25622)
1113
1114 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1115 (bug #20779)
1116
1117 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1118 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1119 too small depending on MEM_ALIGNMENT
1120
1121 2009-02-16 Simon Goldschmidt
1122 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1123 converted size argument of netconn_write to 'size_t'
1124
1125 2009-02-16 Simon Goldschmidt
1126 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1127 by moving accept callback function pointer to TCP_PCB_COMMON
1128
1129 2009-02-12 Simon Goldschmidt
1130 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1131 option)
1132
1133 2009-02-11 Simon Goldschmidt
1134 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1135
1136 2009-02-11 Simon Goldschmidt
1137 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1138 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1139
1140 2009-02-10 Simon Goldschmidt
1141 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1142 Accepts_pending is decrease on a corresponding listen pcb when a connection
1143 in state SYN_RCVD is close.
1144
1145 2009-01-28 Jonathan Larmour
1146 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1147 out of pool pbufs.
1148
1149 2008-12-19 Simon Goldschmidt
1150 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1151
1152 2008-12-10 Tamas Somogyi, Frédéric Bernon
1153 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1154 port uses deleted netbuf.
1155
1156 2008-10-18 Simon Goldschmidt
1157 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1158 in tcp_parseopt
1159
1160 2008-10-15 Simon Goldschmidt
1161 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1162 by packing the struct ip_reass_helper.
1163
1164 2008-10-03 David Woodhouse, Jonathan Larmour
1165 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1166
1167 2008-10-02 Jonathan Larmour
1168 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1169 padding is included.
1170
1171 2008-09-30 Jonathan Larmour
1172 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1173 assertion check that addrlen isn't NULL.
1174
1175 2008-09-30 Jonathan Larmour
1176 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1177
1178 2008-08-26 Simon Goldschmidt
1179 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1180 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1181
1182 2008-08-14 Simon Goldschmidt
1183 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1184 tcp_close returns != ERR_OK)
1185
1186 2008-07-08 Frédéric Bernon
1187 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1188 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1189
1190 2008-06-24 Jonathan Larmour
1191 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1192 if tcp_seg_copy fails.
1193
1194 2008-06-17 Simon Goldschmidt
1195 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1196 and created defines for swapping bytes and folding u32 to u16.
1197
1198 2008-05-30 Kieran Mansley
1199 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1200 rather than rcv_ann_wnd when deciding if packets are in-window.
1201 Contributed by <arasmussen@consultant.datasys.swri.edu>
1202
1203 2008-05-30 Kieran Mansley
1204 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1205 passing as function pointers when MEM_LIBC_MALLOC is defined.
1206
1207 2008-05-09 Jonathan Larmour
1208 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1209 stop it being treated as a fatal error.
1210
1211 2008-04-15 Simon Goldschmidt
1212 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1213 (flag now cleared)
1214
1215 2008-03-27 Simon Goldschmidt
1216 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1217 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1218 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1219 or heap memory from interrupt context
1220
1221 2008-03-26 Simon Goldschmidt
1222 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1223 host sent a zero mss as TCP option.
1224
1225
1226 (STABLE-1.3.0)
1227
1228 ++ New features:
1229
1230 2008-03-10 Jonathan Larmour
1231 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1232 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1233
1234 2008-01-22 Frédéric Bernon
1235 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1236 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1237
1238 2008-01-14 Frédéric Bernon
1239 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1240 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1241 tcp_recv callback (see rawapi.txt).
1242
1243 2008-01-14 Frédéric Bernon, Marc Chaland
1244 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1245
1246 2008-01-12 Frédéric Bernon
1247 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1248 netconn::sem per netconn::op_completed like suggested for the task #7490
1249 "Add return value to sys_mbox_post".
1250
1251 2008-01-12 Frédéric Bernon
1252 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1253 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1254 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1255
1256 2008-01-10 Frédéric Bernon
1257 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1258 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1259 "blocking" ("block" parameter = 1).
1260
1261 2008-01-10 Frédéric Bernon
1262 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1263 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1264 "Add return value to sys_mbox_post".
1265
1266 2008-01-05 Frédéric Bernon
1267 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1268 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1269 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1270 indicate the number of pointers query by the mailbox. There is three defines
1271 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1272 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1273 parameter in your implementation, but to ignore it to keep the previous behavior.
1274 The new sys_mbox_trypost function return a value to know if the mailbox is
1275 full or if the message is posted. Take a look to sys_arch.txt for more details.
1276 This new function is used in tcpip_input (so, can be called in an interrupt
1277 context since the function is not blocking), and in recv_udp and recv_raw.
1278
1279 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1280 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1281 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1282 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1283 documentation in the rawapi.txt file.
1284
1285 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1286 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1287
1288 2007-12-31 Frédéric Bernon, Luca Ceresoli
1289 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1290 in autoip". The change in etharp_raw could be removed, since all calls to
1291 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1292 wrong in the future.
1293
1294 2007-12-30 Frédéric Bernon, Tom Evans
1295 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1296 Filtering" reported by Tom Evans.
1297
1298 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1299 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1300 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1301 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1302 keep accepting new connections.
1303
1304 2007-12-13 Frédéric Bernon
1305 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1306 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1307
1308 2007-12-12 Frédéric Bernon
1309 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1310 are the one which have ram usage.
1311
1312 2007-12-05 Frédéric Bernon
1313 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1314 set of variables (=0) or a local one (=1). In this last case, your port should
1315 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1316 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1317
1318 2007-12-03 Simon Goldschmidt
1319 * ip.c: ip_input: check if a packet is for inp first before checking all other
1320 netifs on netif_list (speeds up packet receiving in most cases)
1321
1322 2007-11-30 Simon Goldschmidt
1323 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1324 UDP: move a (connected) pcb selected for input to the front of the list of
1325 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1326 a packet.
1327
1328 2007-11-28 Simon Goldschmidt
1329 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1330
1331 2007-11-25 Simon Goldschmidt
1332 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1333 algorithm.
1334
1335 2007-11-24 Simon Goldschmidt
1336 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1337 to the new file netdb.c; included lwip_getaddrinfo.
1338
1339 2007-11-21 Simon Goldschmidt
1340 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1341 based on the MTU of the netif used to send. Enabled by default. Disable by
1342 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1343
1344 2007-11-19 Frédéric Bernon
1345 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1346 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1347 copy dns payload to parse the response), return an error if there is no place
1348 for a new query, and fix some minor problems.
1349
1350 2007-11-16 Simon Goldschmidt
1351 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1352 removed files: core/inet.c, core/inet6.c
1353 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1354 inet and chksum part; changed includes in all lwIP files as appropriate
1355
1356 2007-11-16 Simon Goldschmidt
1357 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1358 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1359 (gethostbyname/gethostbyname_r).
1360
1361 2007-11-15 Jim Pettinato, Frédéric Bernon
1362 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1363 requests with RAW api interface. Initialization is done in lwip_init() with
1364 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1365 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1366 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1367 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1368 list with points to improve.
1369
1370 2007-11-06 Simon Goldschmidt
1371 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1372 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1373 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1374
1375 2007-11-06 Simon Goldschmidt
1376 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1377 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1378 implementation from netconn api applications.
1379
1380 2007-11-03 Frédéric Bernon
1381 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1382 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1383 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1384 it. This is a first release which have to be improve for TCP. Note it used the
1385 netconn::recv_avail which need to be more "thread-safe" (note there is already
1386 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1387
1388 2007-11-01 Frédéric Bernon, Marc Chaland
1389 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1390 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1391 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1392 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1393 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1394
1395 2007-10-24 Frédéric Bernon
1396 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1397 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1398 some code (like we have talk in "patch #5919 : Create compile switch to remove
1399 select code"), but it could be done later.
1400
1401 2007-10-08 Simon Goldschmidt
1402 * many files: Changed initialization: many init functions are not needed any
1403 more since we now rely on the compiler initializing global and static
1404 variables to zero!
1405
1406 2007-10-06 Simon Goldschmidt
1407 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1408 to enqueue the received pbufs so that multiple packets can be reassembled
1409 simultaneously and no static reassembly buffer is needed.
1410
1411 2007-10-05 Simon Goldschmidt
1412 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1413 all netifs (or ports) can use it.
1414
1415 2007-10-05 Frédéric Bernon
1416 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1417 common function to reduce a little bit the footprint (for all functions using
1418 only the "netif" parameter).
1419
1420 2007-10-03 Frédéric Bernon
1421 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1422 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1423 a little bit the footprint (for all functions using only the "netif" parameter).
1424
1425 2007-09-15 Frédéric Bernon
1426 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1427 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1428 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1429 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1430
1431 2007-09-10 Frédéric Bernon
1432 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1433 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1434 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1435 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1436 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1437 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1438 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1439 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1440 when it's queried (any direct call to "sysuptime" is changed by a call to
1441 snmp_get_sysuptime).
1442
1443 2007-09-09 Frédéric Bernon, Bill Florac
1444 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1445 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1446 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1447 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1448 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1449 the next query message to receive the matching multicast streams).
1450
1451 2007-09-08 Frédéric Bernon
1452 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1453 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1454 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1455 Enable to access to these fields with LWIP_TCP=0.
1456
1457 2007-09-05 Frédéric Bernon
1458 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1459 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1460 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1461 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1462 help to reduce footprint, and to reduce "visibility" on the Internet.
1463
1464 2007-09-05 Frédéric Bernon, Bill Florac
1465 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1466 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1467 parameters have to be provided: a task name, and a task stack size. For this
1468 one, since it's platform dependant, you could define the best one for you in
1469 your lwipopts.h. For port maintainers, you can just add these new parameters
1470 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1471 specific functions.
1472
1473 2007-09-05 Frédéric Bernon
1474 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1475 inside init.c for task #7142 "Sanity check user-configurable values".
1476
1477 2007-09-04 Frédéric Bernon, Bill Florac
1478 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1479 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1480 value). It will avoid potential fragmentation problems, use a counter to know
1481 how many times a group is used on an netif, and free it when all applications
1482 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1483 check if LWIP_IGMP!=0).
1484
1485 2007-09-03 Frédéric Bernon
1486 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1487 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1488 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1489 and/or the "interface" field (for netconn layer), for join/leave operations.
1490 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1491 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1492
1493 2007-08-30 Frédéric Bernon
1494 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1495 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1496 with other API (application based on raw API, or future "socket2" API). Ports
1497 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1498
1499 2007-08-30 Frédéric Bernon, Jonathan Larmour
1500 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1501 user-configurable values".
1502
1503 2007-08-29 Frédéric Bernon
1504 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1505 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1506 spirit than the others modules. Modify some IGMP debug traces.
1507
1508 2007-08-29 Frédéric Bernon
1509 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1510 Add lwip_init function to regroup all modules initializations, and to provide
1511 a place to add code for task #7142 "Sanity check user-configurable values".
1512 Ports maintainers should remove direct initializations calls from their code,
1513 and add init.c in their makefiles. Note that lwip_init() function is called
1514 inside tcpip_init, but can also be used by raw api users since all calls are
1515 disabled when matching options are disabled. Also note that their is new options
1516 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1517
1518 2007-08-26 Marc Boucher
1519 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1520 since they can under certain circumstances be called with an invalid conn
1521 pointer after the connection has been closed (and conn has been freed).
1522
1523 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1524 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1525 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1526
1527 2007-08-22 Frédéric Bernon
1528 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1529 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1530
1531 2007-08-22 Frédéric Bernon
1532 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1533 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1534 name is tcpip_input (we keep the name of 1.2.0 function).
1535
1536 2007-08-17 Jared Grubb
1537 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1538 settings into new memp_std.h and optional user file lwippools.h. This adds
1539 more dynamic mempools, and allows the user to create an arbitrary number of
1540 mempools for mem_malloc.
1541
1542 2007-08-16 Marc Boucher
1543 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1544 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1545 close the connection.
1546
1547 2007-08-16 Marc Boucher
1548 * sockets.c: lwip_accept(): check netconn_peer() error return.
1549
1550 2007-08-16 Marc Boucher
1551 * mem.c, mem.h: Added mem_calloc().
1552
1553 2007-08-16 Marc Boucher
1554 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1555 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1556 and starving other message types.
1557 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1558
1559 2007-08-16 Marc Boucher
1560 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1561 type and flgs (later renamed to flags).
1562 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1563 Improved lwip_recvfrom(). TCP push now propagated.
1564
1565 2007-08-16 Marc Boucher
1566 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1567 provided by etharp.
1568
1569 2007-08-16 Marc Boucher
1570 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1571 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1572 Added PPPoE support and various PPP improvements.
1573
1574 2007-07-25 Simon Goldschmidt
1575 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1576 making netbuf_copy_partial use this function.
1577
1578 2007-07-25 Simon Goldschmidt
1579 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1580 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1581 other stacks.
1582
1583 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1584 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1585 a link callback in the netif struct, and functions to handle it. Be carefull
1586 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1587 if you want to be sure to be compatible with future changes...
1588
1589 2007-06-30 Frédéric Bernon
1590 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1591
1592 2007-06-21 Simon Goldschmidt
1593 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1594 LWIP_AUTOIP =0 and =1 to remove redundant code.
1595
1596 2007-06-21 Simon Goldschmidt
1597 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1598 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1599 heap. This both prevents memory fragmentation and gives a higher speed
1600 at the cost of more memory consumption. Turned off by default.
1601
1602 2007-06-21 Simon Goldschmidt
1603 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1604 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1605 int to be able to send a bigger buffer than 64K with one time (mainly
1606 used from lwip_send).
1607
1608 2007-06-21 Simon Goldschmidt
1609 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1610 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1611
1612 2007-06-21 Simon Goldschmidt
1613 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1614 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1615 changes on low memory or empty send-buffer.
1616
1617 2007-06-18 Simon Goldschmidt
1618 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1619 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1620 used for ethernet and struct eth_addr already had a defined length of 6).
1621
1622 2007-06-17 Simon Goldschmidt
1623 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1624 to disable UDP checksum generation on transmit.
1625
1626 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1627 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1628 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1629 this macro to check "conn" parameter in api_msg.c functions.
1630
1631 2007-06-11 Simon Goldschmidt
1632 * sockets.c, sockets.h: Added UDP lite support for sockets
1633
1634 2007-06-10 Simon Goldschmidt
1635 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1636 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1637 size)
1638
1639 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1640 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1641 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1642 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1643 (see TODO mark in the source code).
1644
1645 2007-06-09 Simon Goldschmidt
1646 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1647 etharp_output() to match netif->output so etharp_output() can be used
1648 directly as netif->output to save one function call.
1649
1650 2007-06-08 Simon Goldschmidt
1651 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1652 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1653 added initialization of those to ethernetif, slipif and loopif.
1654
1655 2007-05-18 Simon Goldschmidt
1656 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1657 (defaulting to off for now) that can be set to 0 to send fragmented
1658 packets by passing PBUF_REFs down the stack.
1659
1660 2007-05-23 Frédéric Bernon
1661 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1662 connections, such present in patch #5959.
1663
1664 2007-05-23 Frédéric Bernon
1665 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1666 code in only one part...
1667
1668 2007-05-18 Simon Goldschmidt
1669 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1670 elements to overflow. This is achieved by adding some bytes before and after
1671 each pool element (increasing their size, of course), filling them with a
1672 prominent value and checking them on freeing the element.
1673 Set it to 2 to also check every element in every pool each time memp_malloc()
1674 or memp_free() is called (slower but more helpful).
1675
1676 2007-05-10 Simon Goldschmidt
1677 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1678 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1679 code size.
1680
1681 2007-05-11 Frédéric Bernon
1682 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1683 Include a function pointer instead of a table index in the message to reduce
1684 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1685 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1686
1687 2007-05-10 Simon Goldschmidt
1688 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1689 \ extern "C" {' in all header files. Now you can write your application using
1690 the lwIP stack in C++ and simply #include the core files. Note I have left
1691 out the netif/ppp/*h header files for now, since I don't know which files are
1692 included by applications and which are for internal use only.
1693
1694 2007-05-09 Simon Goldschmidt
1695 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1696 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1697 situations where some compilers might inline the copy and save a function
1698 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1699
1700 2007-05-08 Simon Goldschmidt
1701 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1702 to be overriden in case the C-library malloc implementation is not protected
1703 against concurrent access.
1704
1705 2007-05-04 Simon Goldschmidt (Atte Kojo)
1706 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1707 multiple packets to the same host.
1708
1709 2007-05-04 Frédéric Bernon, Jonathan Larmour
1710 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1711 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1712 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1713 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1714 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1715 these fields are now renamed "addr" & "port".
1716
1717 2007-04-11 Jonathan Larmour
1718 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1719 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1720 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1721 by the port in sys_arch.h if desired.
1722
1723 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1724 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1725 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1726 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1727
1728 2007-04-05 Frédéric Bernon
1729 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1730
1731 2007-04-04 Simon Goldschmidt
1732 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1733 use this for and architecture-independent form to tell the compiler you intentionally
1734 are not using this variable. Can be overriden in cc.h.
1735
1736 2007-03-28 Frédéric Bernon
1737 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1738 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1739 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1740 It will be used by DHCP to register a client hostname, but can also be use when you call
1741 snmp_set_sysname.
1742
1743 2007-03-28 Frédéric Bernon
1744 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1745 initialize a network interface's flag with. It tell this interface is an ethernet
1746 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1747 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1748
1749 2007-03-26 Frédéric Bernon, Jonathan Larmour
1750 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1751 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1752 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1753 is done in tcpip_init function.
1754
1755 2007-03-22 Frédéric Bernon
1756 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1757 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1758 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1759 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1760 but never used. Fix msg_in.c with the correct #if test for a stat display.
1761
1762 2007-03-21 Kieran Mansley
1763 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1764 Provides callback on netif up/down state change.
1765
1766 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1767 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1768 ip.c, netif.h, tcpip.c, opt.h:
1769 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1770 filter per all network interfaces. Declare a new function in netif to enable to
1771 control the MAC filter (to reduce lwIP traffic processing).
1772
1773 2007-03-11 Frédéric Bernon
1774 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1775 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1776 unless you know what you're doing (default are RFC1122 compliant). Note
1777 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1778
1779 2007-03-08 Frédéric Bernon
1780 * tcp.h: Keepalive values can be configured at compile time, but don't change
1781 this unless you know what you're doing (default are RFC1122 compliant).
1782
1783 2007-03-08 Frédéric Bernon
1784 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1785 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1786 on UDP sockets/netconn.
1787
1788 2007-03-08 Simon Goldschmidt
1789 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1790
1791 2007-03-06 Frédéric Bernon
1792 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1793 Implement SO_RCVTIMEO on UDP sockets/netconn.
1794
1795 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1796 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1797 on the stack and remove the API msg type from memp
1798
1799 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1800 * sockets.h, sockets.c: Move socket initialization to new
1801 lwip_socket_init() function.
1802 NOTE: this changes the API with ports. Ports will have to be
1803 updated to call lwip_socket_init() now.
1804
1805 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1806 * api_lib.c: Use memcpy in netbuf_copy_partial.
1807
1808
1809 ++ Bug fixes:
1810
1811 2008-03-17 Frédéric Bernon, Ed Kerekes
1812 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1813 some problems to fill the IP header on some targets, use now the
1814 ip.h macros to do it).
1815
1816 2008-03-13 Frédéric Bernon
1817 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1818 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1819 TCP connection caused a crash. Note that using (lwip_)recvfrom
1820 like this is a bit slow and that using (lwip)getpeername is the
1821 good lwip way to do it (so, using recv is faster on tcp sockets).
1822
1823 2008-03-12 Frédéric Bernon, Jonathan Larmour
1824 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1825 recv_raw() does not consume data", and the ping sample (with
1826 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1827 returned the IP payload, without the IP header).
1828
1829 2008-03-04 Jonathan Larmour
1830 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1831 and/or warnings on some systems where mem_size_t and size_t differ.
1832 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1833
1834 2008-03-04 Kieran Mansley (contributions by others)
1835 * Numerous small compiler error/warning fixes from contributions to
1836 mailing list after 1.3.0 release candidate made.
1837
1838 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1839 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1840
1841 2008-01-15 Kieran Mansley
1842 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1843 prevented from sending by a small send window, not just a zero
1844 send window.
1845
1846 2008-01-09 Jonathan Larmour
1847 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1848 conflict with Linux system headers.
1849
1850 2008-01-06 Jonathan Larmour
1851 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1852 address entirely on receiving a DHCPNAK, and restarting discovery.
1853
1854 2007-12-21 Simon Goldschmidt
1855 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1856 is not protected" by using new macros for interlocked access to modify/test
1857 netconn->recv_avail.
1858
1859 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1860 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1861
1862 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1863 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1864 of silly window avoidance and prevent lwIP from shrinking the window)
1865
1866 2007-12-04 Simon Goldschmidt
1867 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1868 data packet was lost): add assert that all segment lists are empty in
1869 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1870 state from LAST_ACK in tcp_process
1871
1872 2007-12-02 Simon Goldschmidt
1873 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1874 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1875 has to be set to 0 in lwipopts.h
1876
1877 2007-12-02 Simon Goldschmidt
1878 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1879 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1880 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1881 This is a fix for thread-safety and allocates all items needed for a netconn
1882 when the netconn is created.
1883
1884 2007-11-30 Simon Goldschmidt
1885 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1886 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1887 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1888 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1889
1890 2007-11-27 Simon Goldschmidt
1891 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1892 letting ip_route only use netifs that are up.
1893
1894 2007-11-27 Simon Goldschmidt
1895 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1896 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1897 sockets block most operations once they have seen a fatal error.
1898
1899 2007-11-27 Simon Goldschmidt
1900 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1901 netif to send as an argument (to be able to send on netifs that are down).
1902
1903 2007-11-26 Simon Goldschmidt
1904 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1905 arrive out-of-order
1906
1907 2007-11-21 Simon Goldschmidt
1908 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1909 Fixed the nagle algorithm; nagle now also works for all raw API applications
1910 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1911
1912 2007-11-12 Frédéric Bernon
1913 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1914 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1915 context in do_getaddr.
1916
1917 2007-11-10 Simon Goldschmidt
1918 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1919 happen any time). Now the packet simply isn't enqueued when out of memory.
1920
1921 2007-11-01 Simon Goldschmidt
1922 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1923 TCP_MSS if that is smaller) as long as no MSS option is received from the
1924 remote host.
1925
1926 2007-11-01 Simon Goldschmidt
1927 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1928 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1929 sending our configured TCP_MSS instead of the one received).
1930
1931 2007-11-01 Simon Goldschmidt
1932 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1933 calculated based on the configured TCP_MSS, not on the MSS option received
1934 with SYN+ACK.
1935
1936 2007-10-09 Simon Goldschmidt
1937 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
1938 short and also was generated wrong if checksum coverage != tot_len;
1939 receive: checksum was calculated wrong if checksum coverage != tot_len
1940
1941 2007-10-08 Simon Goldschmidt
1942 * mem.c: lfree was not updated in mem_realloc!
1943
1944 2007-10-07 Frédéric Bernon
1945 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
1946 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
1947 this change cause an API breakage for netconn_addr, since a parameter
1948 type change. Any compiler should cause an error without any changes in
1949 yours netconn_peer calls (so, it can't be a "silent change"). It also
1950 reduce a little bit the footprint for socket layer (lwip_getpeername &
1951 lwip_getsockname use now a common lwip_getaddrname function since
1952 netconn_peer & netconn_addr have the same parameters).
1953
1954 2007-09-20 Simon Goldschmidt
1955 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
1956 by checking tcp_tw_pcbs also
1957
1958 2007-09-19 Simon Goldschmidt
1959 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
1960
1961 2007-09-15 Mike Kleshov
1962 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
1963
1964 2007-09-06 Frédéric Bernon
1965 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
1966 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
1967 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
1968 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
1969
1970 2007-08-30 Frédéric Bernon
1971 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
1972 and fix some coding style.
1973
1974 2007-08-28 Frédéric Bernon
1975 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
1976 kind of packets. These packets are considered like Ethernet packets (payload
1977 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
1978 are considered like IP packets (payload pointing to iphdr).
1979
1980 2007-08-27 Frédéric Bernon
1981 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
1982 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
1983 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
1984
1985 2007-08-24 Kieran Mansley
1986 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
1987 compiler (Paradigm C++)
1988
1989 2007-08-09 Frédéric Bernon, Bill Florac
1990 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
1991 Introduce IGMP_STATS to centralize statistics management.
1992
1993 2007-08-09 Frédéric Bernon, Bill Florac
1994 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
1995 packet on a udp pcb binded on an netif's IP address, and not on "any".
1996
1997 2007-08-09 Frédéric Bernon, Bill Florac
1998 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
1999 This is mainly on using lookup/lookfor, and some coding styles...
2000
2001 2007-07-26 Frédéric Bernon (and "thedoctor")
2002 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2003
2004 2007-07-25 Simon Goldschmidt
2005 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2006 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2007 (tcp_output is called again later from tcp timers).
2008
2009 2007-07-25 Simon Goldschmidt
2010 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2011 copy_from_pbuf, which illegally modified the given pbuf.
2012
2013 2007-07-25 Simon Goldschmidt
2014 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2015 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2016
2017 2007-07-24 Simon Goldschmidt
2018 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2019 correct state (must be CLOSED).
2020
2021 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2022 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2023 allocation. It now returns NULL.
2024
2025 2007-07-13 Frédéric Bernon
2026 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2027 all error cases.
2028
2029 2007-07-13 Frédéric Bernon
2030 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2031 because current code doesn't follow rawapi.txt documentation.
2032
2033 2007-07-13 Kieran Mansley
2034 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2035 out of sequence processing of received packets
2036
2037 2007-07-03 Simon Goldschmidt
2038 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2039 assumption is made that this pbuf is in one piece (i.e. not chained). These
2040 assumptions clash with the possibility of converting to fully pool-based
2041 pbuf implementations, where PBUF_RAM pbufs might be chained.
2042
2043 2007-07-03 Simon Goldschmidt
2044 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2045 when closing tcp netconns: removed conn->sem, less context switches when
2046 closing, both netconn_close and netconn_delete should safely close tcp
2047 connections.
2048
2049 2007-07-02 Simon Goldschmidt
2050 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2051 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2052 to cache ARP table indices with each pcb instead of single-entry cache for
2053 the complete stack.
2054
2055 2007-07-02 Simon Goldschmidt
2056 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2057 warnings when assigning to smaller types.
2058
2059 2007-06-28 Simon Goldschmidt
2060 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2061
2062 2007-06-28 Simon Goldschmidt
2063 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2064 a segment contained chained pbufs)
2065
2066 2007-06-28 Frédéric Bernon
2067 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2068 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2069 possible to define this macro in your own lwipopts.h to always use C library's
2070 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2071
2072 2007-06-28 Frédéric Bernon
2073 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2074 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2075 in api_lib/api_msg (use pointers and not type with table, etc...)
2076
2077 2007-06-26 Simon Goldschmidt
2078 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2079
2080 2007-06-25 Simon Goldschmidt
2081 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2082 for udp packets with no matching pcb.
2083
2084 2007-06-25 Simon Goldschmidt
2085 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2086 could get udp input packets if the remote side matched.
2087
2088 2007-06-13 Simon Goldschmidt
2089 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2090 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2091
2092 2007-06-13 Simon Goldschmidt
2093 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2094 -> netconn_new_..() does not allocate a new connection for unsupported
2095 protocols.
2096
2097 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2098 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2099 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2100
2101 2007-06-13 Frédéric Bernon, Matthias Weisser
2102 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2103 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2104 some macro names collision with some OS macros.
2105
2106 2007-06-11 Simon Goldschmidt
2107 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2108 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2109 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2110 UDP & UDP Lite.
2111
2112 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2113 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2114 where TCP flags wasn't initialized in tcp_keepalive.
2115
2116 2007-06-03 Simon Goldschmidt
2117 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2118 registered, p->payload was modified without modifying p->len if sending
2119 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2120
2121 2007-06-03 Simon Goldschmidt
2122 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2123 re-used the input pbuf even if that didn't have enough space to include the
2124 link headers. Now the space is tested and a new pbuf is allocated for the
2125 echo response packet if the echo request pbuf isn't big enough.
2126
2127 2007-06-01 Simon Goldschmidt
2128 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2129
2130 2007-05-23 Frédéric Bernon
2131 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2132 allocated by do_listen if success) and netconn_accept errors handling. In
2133 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2134 by ASSERT, except for netconn_delete.
2135
2136 2007-05-23 Frédéric Bernon
2137 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2138 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2139 directly close the recvmbox).
2140
2141 2007-05-22 Simon Goldschmidt
2142 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2143 bound but unconnected (and non-listening) tcp_pcbs.
2144
2145 2007-05-22 Frédéric Bernon
2146 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2147 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2148 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2149 like "sys_timeout" in their application threads.
2150
2151 2007-05-22 Frédéric Bernon
2152 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2153 which parameters are used by which do_xxx function, and to avoid "misusing"
2154 parameters (patch #5938).
2155
2156 2007-05-22 Simon Goldschmidt
2157 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2158 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2159 is only 8 bits wide. This affects the api, as there, the protocol was
2160 u16_t, too.
2161
2162 2007-05-18 Simon Goldschmidt
2163 * memp.c: addition to patch #5913: smaller pointer was returned but
2164 memp_memory was the same size -> did not save memory.
2165
2166 2007-05-16 Simon Goldschmidt
2167 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2168 != ERR_OK.
2169
2170 2007-05-16 Simon Goldschmidt
2171 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2172 as the one of the netif used for sending to prevent sending from old
2173 addresses after a netif address gets changed (partly fixes bug #3168).
2174
2175 2007-05-16 Frédéric Bernon
2176 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2177 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2178 tcpip_init) because we have to be sure that network interfaces are already
2179 added (mac filter is updated only in igmp_init for the moment).
2180
2181 2007-05-16 Simon Goldschmidt
2182 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2183 into sys_arch_sem_wait calls to prevent timers from running while waiting
2184 for the heap. This fixes bug #19167.
2185
2186 2007-05-13 Simon Goldschmidt
2187 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2188 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2189 tcp.h to sockets.h.
2190
2191 2007-05-07 Simon Goldschmidt
2192 * mem.c: Another attempt to fix bug #17922.
2193
2194 2007-05-04 Simon Goldschmidt
2195 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2196 implementation so that it can be reused (don't allocate the target
2197 pbuf inside pbuf_copy()).
2198
2199 2007-05-04 Simon Goldschmidt
2200 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2201 to save a little RAM (next pointer of memp is not used while not in pool).
2202
2203 2007-05-03 "maq"
2204 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2205 (patch #3574).
2206
2207 2007-04-23 Simon Goldschmidt
2208 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2209 in NULL reference for incoming TCP packets". Loopif has to be configured
2210 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2211 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2212 putting packets on a list that is fed to the stack by calling loopif_poll()
2213 (single-thread / NO_SYS / polling environment where e.g.
2214 netif->input() = ip_input).
2215
2216 2007-04-17 Jonathan Larmour
2217 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2218 the difference between two u16_t's.
2219 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2220 MEMP_NUM_NETCONN in sockets.c right now.
2221
2222 2007-04-12 Jonathan Larmour
2223 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2224
2225 2007-04-12 Kieran Mansley
2226 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2227 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2228
2229 2007-04-11 Simon Goldschmidt
2230 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2231 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2232 pbuf.c: removed functions no needed any more (by etharp).
2233
2234 2007-04-11 Kieran Mansley
2235 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2236 "Constant is long" warnings with 16bit compilers. Contributed by
2237 avatar@mmlab.cse.yzu.edu.tw
2238
2239 2007-04-05 Frédéric Bernon, Jonathan Larmour
2240 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2241 the mailbox is active". Now, the post is only done during a connect, and do_send,
2242 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2243
2244 2007-04-03 Frédéric Bernon
2245 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2246 packets. See patch #5834.
2247
2248 2007-03-30 Frédéric Bernon
2249 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2250 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2251
2252 2007-03-30 Frédéric Bernon
2253 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2254 others environment defines (these were too "generic").
2255
2256 2007-03-28 Frédéric Bernon
2257 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2258 result and can cause a crash. lwip_send now check netbuf_ref result.
2259
2260 2007-03-28 Simon Goldschmidt
2261 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2262 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2263 defined. This is the way it should have been already (looking at
2264 doc/sys_arch.txt)
2265
2266 2007-03-28 Kieran Mansley
2267 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2268 IP and TCP headers *and* physical link headers
2269
2270 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2271 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2272 to send some garbage. It is not a definitive solution, but the patch does solve
2273 the problem for most cases.
2274
2275 2007-03-22 Frédéric Bernon
2276 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2277
2278 2007-03-22 Frédéric Bernon
2279 * api_lib.c: somes resources couldn't be freed if there was errors during
2280 netconn_new_with_proto_and_callback.
2281
2282 2007-03-22 Frédéric Bernon
2283 * ethernetif.c: update netif->input calls to check return value. In older ports,
2284 it's a good idea to upgrade them, even if before, there could be another problem
2285 (access to an uninitialized mailbox).
2286
2287 2007-03-21 Simon Goldschmidt
2288 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2289 by casting to unsigned).
2290
2291 2007-03-21 Frédéric Bernon
2292 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2293 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2294 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2295 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2296 faster and more reliable communication between api_lib and tcpip.
2297
2298 2007-03-21 Frédéric Bernon
2299 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2300
2301 2007-03-21 Frédéric Bernon
2302 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2303
2304 2007-03-21 Kieran Mansley
2305 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2306 IP and TCP headers
2307
2308 2007-03-21 Kieran Mansley
2309 * Fix all uses of pbuf_header to check the return value. In some
2310 cases just assert if it fails as I'm not sure how to fix them, but
2311 this is no worse than before when they would carry on regardless
2312 of the failure.
2313
2314 2007-03-21 Kieran Mansley
2315 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2316 comment out missing header include in icmp.c
2317
2318 2007-03-20 Frédéric Bernon
2319 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2320 synchronized with memp.h.
2321
2322 2007-03-20 Frédéric Bernon
2323 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2324 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2325 network interfaces. Also fix a compiler warning.
2326
2327 2007-03-20 Kieran Mansley
2328 * udp.c: Only try and use pbuf_header() to make space for headers if
2329 not a ROM or REF pbuf.
2330
2331 2007-03-19 Frédéric Bernon
2332 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2333 and api_msg_post().
2334
2335 2007-03-19 Frédéric Bernon
2336 * Remove unimplemented "memp_realloc" function from memp.h.
2337
2338 2007-03-11 Simon Goldschmidt
2339 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2340 memory corruption.
2341
2342 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2343 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2344 (missing `const' qualifier in socket functions), to get more compatible to
2345 standard POSIX sockets.
2346
2347 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2348 * sockets.c: Add asserts inside bind, connect and sendto to check input
2349 parameters. Remove excessive set_errno() calls after get_socket(), because
2350 errno is set inside of get_socket(). Move last sock_set_errno() inside
2351 lwip_close.
2352
2353 2007-03-09 Simon Goldschmidt
2354 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2355 was allocated too small.
2356
2357 2007-03-06 Simon Goldschmidt
2358 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2359 the stack from concurrent access.
2360
2361 2007-03-06 Frédéric Bernon, Dmitry Potapov
2362 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2363 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2364
2365 2007-03-06 Simon Goldschmidt
2366 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2367 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2368
2369 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2370 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2371 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2372 Allow to do ARP processing for incoming packets inside tcpip_thread
2373 (protecting ARP layer against concurrent access). You can also disable
2374 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2375 Older ports have to use tcpip_ethinput.
2376
2377 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2378 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2379 from pointer target type"
2380
2381 2007-03-05 Frédéric Bernon
2382 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2383 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2384
2385 2007-03-04 Frédéric Bernon
2386 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2387 referenced.
2388
2389 2007-03-04 Frédéric Bernon
2390 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2391 Dmitry Potapov).
2392 The api_msg struct stay on the stack (not moved to netconn struct).
2393
2394 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2395 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2396 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2397 Also fixed cast warning in pbuf_alloc()
2398
2399 2007-03-04 Simon Goldschmidt
2400 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2401 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2402
2403 2007-03-03 Frédéric Bernon
2404 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2405 It is static, and never used in udp.c except udp_init().
2406
2407 2007-03-02 Simon Goldschmidt
2408 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2409 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2410 initialized before tcpip_thread is running (e.g. before OS is started)
2411
2412 2007-03-02 Frédéric Bernon
2413 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2414 interval.
2415
2416 2007-02-28 Kieran Mansley
2417 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2418 outside the region of the pbuf by pbuf_header()
2419
2420 2007-02-28 Kieran Mansley
2421 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2422 when supplied timeout is also non-zero
2423
2424 (STABLE-1.2.0)
2425
2426 2006-12-05 Leon Woestenberg
2427 * CHANGELOG: Mention STABLE-1.2.0 release.
2428
2429 ++ New features:
2430
2431 2006-12-01 Christiaan Simons
2432 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2433 Note this is a workaround. Currently I have no other options left.
2434
2435 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2436 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2437 to include/lwip/opt.h.
2438 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2439 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2440 * opt.h: Add above new options.
2441
2442 2006-08-18 Christiaan Simons
2443 * tcp_{in,out}.c: added SNMP counters.
2444 * ipv4/ip.c: added SNMP counters.
2445 * ipv4/ip_frag.c: added SNMP counters.
2446
2447 2006-08-08 Christiaan Simons
2448 * etharp.{c,h}: added etharp_find_addr() to read
2449 (stable) ethernet/IP address pair from ARP table
2450
2451 2006-07-14 Christiaan Simons
2452 * mib_structs.c: added
2453 * include/lwip/snmp_structs.h: added
2454 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2455
2456 2006-07-06 Christiaan Simons
2457 * snmp/asn1_{enc,dec}.c added
2458 * snmp/mib2.c added
2459 * snmp/msg_{in,out}.c added
2460 * include/lwip/snmp_asn1.h added
2461 * include/lwip/snmp_msg.h added
2462 * doc/snmp_agent.txt added
2463
2464 2006-03-29 Christiaan Simons
2465 * inet.c, inet.h: Added platform byteswap support.
2466 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2467 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2468
2469 ++ Bug fixes:
2470
2471 2006-11-30 Christiaan Simons
2472 * dhcp.c: Fixed false triggers of request_timeout.
2473
2474 2006-11-28 Christiaan Simons
2475 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2476
2477 2006-10-11 Christiaan Simons
2478 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2479 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2480 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2481 identifier from 170 to 136 (bug #17574).
2482
2483 2006-10-10 Christiaan Simons
2484 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2485
2486 2006-08-17 Christiaan Simons
2487 * udp.c: Fixed bug #17200, added check for broadcast
2488 destinations for PCBs bound to a unicast address.
2489
2490 2006-08-07 Christiaan Simons
2491 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2492
2493 2006-06-27 Christiaan Simons
2494 * api_msg.c: Applied patch for cold case (bug #11135).
2495 In accept_function() ensure newconn->callback is always initialized.
2496
2497 2006-06-15 Christiaan Simons
2498 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2499 facilitate printing of mem_size_t and u16_t statistics.
2500
2501 2006-06-14 Christiaan Simons
2502 * api_msg.c: Applied patch #5146 to handle allocation failures
2503 in accept() by Kevin Lawson.
2504
2505 2006-05-26 Christiaan Simons
2506 * api_lib.c: Removed conn->sem creation and destruction
2507 from netconn_write() and added sys_sem_new to netconn_new_*.
2508
2509 (STABLE-1_1_1)
2510
2511 2006-03-03 Christiaan Simons
2512 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2513 access and added pbuf_alloc() return value checks.
2514
2515 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2516 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2517 now handled by the checksum routine properly.
2518
2519 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2520 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2521 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2522
2523 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2524 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2525 submitted by Mitrani Hiroshi.
2526
2527 2005-12-15 Christiaan Simons
2528 * inet.c: Disabled the added summing routine to preserve code space.
2529
2530 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2531 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2532 Added Curt McDowell's optimized checksumming routine for future
2533 inclusion. Need to create test case for unaliged, aligned, odd,
2534 even length combination of cases on various endianess machines.
2535
2536 2005-12-09 Christiaan Simons
2537 * inet.c: Rewrote standard checksum routine in proper portable C.
2538
2539 2005-11-25 Christiaan Simons
2540 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2541 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2542 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2543
2544 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2545 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2546 routine by Peter Jolasson.
2547 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2548
2549 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2550 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2551 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2552
2553 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2554 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2555
2556 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2557 * udp.c: UDP pcb->recv() was called even when it was NULL.
2558
2559 (STABLE-1_1_0)
2560
2561 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2562 * etharp.*: Disabled multiple packets on the ARP queue.
2563 This clashes with TCP queueing.
2564
2565 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2566 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2567 Halved the ARP period, doubled the period counts.
2568 ETHARP_MAX_PENDING now should be at least 2. This prevents
2569 the counter from reaching 0 right away (which would allow
2570 too little time for ARP responses to be received).
2571
2572 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2573 * dhcp.c: Decline messages were not multicast but unicast.
2574 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2575 Do not try hard to insert arbitrary packet's source address,
2576 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2577 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2578 querying an address will see it appear in the cache (DHCP could
2579 suffer from this when a server invalidly gave an in-use address.)
2580 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2581 comparing network addresses (identifiers), not the network masks
2582 themselves.
2583 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2584 IP address actually belongs to the network of the given interface.
2585
2586 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2587 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2588
2589 (STABLE-1_1_0-RC1)
2590
2591 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2592 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2593 even if one is already pending, if the rcv_wnd is above a threshold
2594 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2595 delayed ACK in order to open the window if the stack is only receiving data.
2596
2597 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2598 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2599
2600 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2601 * etharp.c: Make sure the first pbuf queued on an ARP entry
2602 is properly ref counted.
2603
2604 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2605 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2606 warnings about comparison.
2607 * pbuf.c: Stopped compiler complaining of empty if statement
2608 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2609 * tcp.c: Stopped compiler complaining of empty if statement
2610 when LWIP_DEBUGF() empty.
2611 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2612 * inet.c: Added a couple of casts to quiet the compiler.
2613 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2614
2615 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2616 * inet.c: Made data types consistent in inet_ntoa().
2617 Added casts for return values of checksum routines, to pacify compiler.
2618 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2619 Small corrections to some debugging statements, to pacify compiler.
2620
2621 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2622 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2623 * ethernetif.c Updated low_level_output() to match prototype for
2624 netif->linkoutput and changed low_level_input() similarly for consistency.
2625 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2626 of raw_recv() in raw.h and so avoid compiler error.
2627 * sockets.c: Added trivial (int) cast to keep compiler happier.
2628 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2629
2630 (STABLE-1_0_0)
2631
2632 ++ Changes:
2633
2634 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2635 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2636 your cc.h file defines this either 1 or 0. If non-defined,
2637 defaults to 1.
2638 * .c: Added <string.h> and <errno.h> includes where used.
2639 * etharp.c: Made some array indices unsigned.
2640
2641 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2642 * netif.*: Added netif_set_up()/down().
2643 * dhcp.c: Changes to restart program flow.
2644
2645 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2646 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2647 single-pass lookup for different candidates. Should exploit locality.
2648
2649 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2650 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2651 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2652 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2653 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2654
2655 ++ Bug fixes:
2656
2657 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2658 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2659 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2660 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2661 is to prefix the 14-bit Ethernet headers with two padding bytes.
2662
2663 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2664 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2665 * etharp.c: Fixed the case where the packet that initiates the ARP request
2666 is not queued, and gets lost. Fixed the case where the packets destination
2667 address is already known; we now always queue the packet and perform an ARP
2668 request.
2669
2670 (STABLE-0_7_0)
2671
2672 ++ Bug fixes:
2673
2674 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2675 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2676 * Fixed two possible NULL references in rare cases.
2677
2678 (STABLE-0_6_6)
2679
2680 ++ Bug fixes:
2681
2682 * Fixed DHCP which did not include the IP address in DECLINE messages.
2683
2684 ++ Changes:
2685
2686 * etharp.c has been hauled over a bit.
2687
2688 (STABLE-0_6_5)
2689
2690 ++ Bug fixes:
2691
2692 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2693 * Packets sent from ARP queue had invalid source hardware address.
2694
2695 ++ Changes:
2696
2697 * Pass-by ARP requests do now update the cache.
2698
2699 ++ New features:
2700
2701 * No longer dependent on ctype.h.
2702 * New socket options.
2703 * Raw IP pcb support.
2704
2705 (STABLE-0_6_4)
2706
2707 ++ Bug fixes:
2708
2709 * Some debug formatters and casts fixed.
2710 * Numereous fixes in PPP.
2711
2712 ++ Changes:
2713
2714 * DEBUGF now is LWIP_DEBUGF
2715 * pbuf_dechain() has been re-enabled.
2716 * Mentioned the changed use of CVS branches in README.
2717
2718 (STABLE-0_6_3)
2719
2720 ++ Bug fixes:
2721
2722 * Fixed pool pbuf memory leak in pbuf_alloc().
2723 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2724 Reported by Savin Zlobec.
2725
2726 * PBUF_POOL chains had their tot_len field not set for non-first
2727 pbufs. Fixed in pbuf_alloc().
2728
2729 ++ New features:
2730
2731 * Added PPP stack contributed by Marc Boucher
2732
2733 ++ Changes:
2734
2735 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2736
2737 * ARP queueuing now queues the latest packet instead of the first.
2738 This is the RFC recommended behaviour, but can be overridden in
2739 lwipopts.h.
2740
2741 (0.6.2)
2742
2743 ++ Bugfixes:
2744
2745 * TCP has been fixed to deal with the new use of the pbuf->ref
2746 counter.
2747
2748 * DHCP dhcp_inform() crash bug fixed.
2749
2750 ++ Changes:
2751
2752 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2753 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2754 Implemented by David Haas.
2755
2756 (0.6.1)
2757
2758 ++ New features:
2759
2760 * The packet buffer implementation has been enhanced to support
2761 zero-copy and copy-on-demand for packet buffers which have their
2762 payloads in application-managed memory.
2763 Implemented by David Haas.
2764
2765 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2766 if an outgoing packet can be directly sent on the link, or perform
2767 a copy-on-demand when necessary.
2768
2769 The application can safely assume the packet is sent, and the RAM
2770 is available to the application directly after calling udp_send()
2771 or similar function.
2772
2773 ++ Bugfixes:
2774
2775 * ARP_QUEUEING should now correctly work for all cases, including
2776 PBUF_REF.
2777 Implemented by Leon Woestenberg.
2778
2779 ++ Changes:
2780
2781 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2782 to a '0.0.0.0' IP address.
2783
2784 * The packet buffer implementation is changed. The pbuf->ref counter
2785 meaning has changed, and several pbuf functions have been
2786 adapted accordingly.
2787
2788 * netif drivers have to be changed to set the hardware address length field
2789 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2790 See the contrib/ports/c16x cs8900 driver as a driver example.
2791
2792 * netif's have a dhcp field that must be initialized to NULL by the driver.
2793 See the contrib/ports/c16x cs8900 driver as a driver example.
2794
2795 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2796 logged in CVS but have not been explained here.
2797
2798 (0.5.3) Changes since version 0.5.2
2799
2800 ++ Bugfixes:
2801
2802 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2803 threads because it wasn't protected by semaphores.
2804
2805 ++ Other changes:
2806
2807 * struct ip_addr now packed.
2808
2809 * The name of the time variable in arp.c has been changed to ctime
2810 to avoid conflicts with the time() function.
2811
2812 (0.5.2) Changes since version 0.5.1
2813
2814 ++ New features:
2815
2816 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2817
2818 ++ Bugfixes:
2819
2820 * A bug in tcp_parseopt() could cause the stack to hang because of a
2821 malformed TCP option.
2822
2823 * The address of new connections in the accept() function in the BSD
2824 socket library was not handled correctly.
2825
2826 * pbuf_dechain() did not update the ->tot_len field of the tail.
2827
2828 * Aborted TCP connections were not handled correctly in all
2829 situations.
2830
2831 ++ Other changes:
2832
2833 * All protocol header structs are now packed.
2834
2835 * The ->len field in the tcp_seg structure now counts the actual
2836 amount of data, and does not add one for SYN and FIN segments.
2837
2838 (0.5.1) Changes since version 0.5.0
2839
2840 ++ New features:
2841
2842 * Possible to run as a user process under Linux.
2843
2844 * Preliminary support for cross platform packed structs.
2845
2846 * ARP timer now implemented.
2847
2848 ++ Bugfixes:
2849
2850 * TCP output queue length was badly initialized when opening
2851 connections.
2852
2853 * TCP delayed ACKs were not sent correctly.
2854
2855 * Explicit initialization of BSS segment variables.
2856
2857 * read() in BSD socket library could drop data.
2858
2859 * Problems with memory alignment.
2860
2861 * Situations when all TCP buffers were used could lead to
2862 starvation.
2863
2864 * TCP MSS option wasn't parsed correctly.
2865
2866 * Problems with UDP checksum calculation.
2867
2868 * IP multicast address tests had endianess problems.
2869
2870 * ARP requests had wrong destination hardware address.
2871
2872 ++ Other changes:
2873
2874 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2875
2876 * A ->linkoutput() member was added to struct netif.
2877
2878 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2879
2880 * ntoh* macros are now null definitions for big endian CPUs.
2881
2882 (0.5.0) Changes since version 0.4.2
2883
2884 ++ New features:
2885
2886 * Redesigned operating system emulation layer to make porting easier.
2887
2888 * Better control over TCP output buffers.
2889
2890 * Documenation added.
2891
2892 ++ Bugfixes:
2893
2894 * Locking issues in buffer management.
2895
2896 * Bugfixes in the sequential API.
2897
2898 * IP forwarding could cause memory leakage. This has been fixed.
2899
2900 ++ Other changes:
2901
2902 * Directory structure somewhat changed; the core/ tree has been
2903 collapsed.
2904
2905 (0.4.2) Changes since version 0.4.1
2906
2907 ++ New features:
2908
2909 * Experimental ARP implementation added.
2910
2911 * Skeleton Ethernet driver added.
2912
2913 * Experimental BSD socket API library added.
2914
2915 ++ Bugfixes:
2916
2917 * In very intense situations, memory leakage could occur. This has
2918 been fixed.
2919
2920 ++ Other changes:
2921
2922 * Variables named "data" and "code" have been renamed in order to
2923 avoid name conflicts in certain compilers.
2924
2925 * Variable++ have in appliciable cases been translated to ++variable
2926 since some compilers generate better code in the latter case.
2927
2928 (0.4.1) Changes since version 0.4
2929
2930 ++ New features:
2931
2932 * TCP: Connection attempts time out earlier than data
2933 transmissions. Nagle algorithm implemented. Push flag set on the
2934 last segment in a burst.
2935
2936 * UDP: experimental support for UDP-Lite extensions.
2937
2938 ++ Bugfixes:
2939
2940 * TCP: out of order segments were in some cases handled incorrectly,
2941 and this has now been fixed. Delayed acknowledgements was broken
2942 in 0.4, has now been fixed. Binding to an address that is in use
2943 now results in an error. Reset connections sometimes hung an
2944 application; this has been fixed.
2945
2946 * Checksum calculation sometimes failed for chained pbufs with odd
2947 lengths. This has been fixed.
2948
2949 * API: a lot of bug fixes in the API. The UDP API has been improved
2950 and tested. Error reporting and handling has been
2951 improved. Logical flaws and race conditions for incoming TCP
2952 connections has been found and removed.
2953
2954 * Memory manager: alignment issues. Reallocating memory sometimes
2955 failed, this has been fixed.
2956
2957 * Generic library: bcopy was flawed and has been fixed.
2958
2959 ++ Other changes:
2960
2961 * API: all datatypes has been changed from generic ones such as
2962 ints, to specified ones such as u16_t. Functions that return
2963 errors now have the correct type (err_t).
2964
2965 * General: A lot of code cleaned up and debugging code removed. Many
2966 portability issues have been fixed.
2967
2968 * The license was changed; the advertising clause was removed.
2969
2970 * C64 port added.
2971
2972 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
2973 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
2974 fixing bugs!
2975
2976 (0.4) Changes since version 0.3.1
2977
2978 * Memory management has been radically changed; instead of
2979 allocating memory from a shared heap, memory for objects that are
2980 rapidly allocated and deallocated is now kept in pools. Allocation
2981 and deallocation from those memory pools is very fast. The shared
2982 heap is still present but is used less frequently.
2983
2984 * The memory, memory pool, and packet buffer subsystems now support
2985 4-, 2-, or 1-byte alignment.
2986
2987 * "Out of memory" situations are handled in a more robust way.
2988
2989 * Stack usage has been reduced.
2990
2991 * Easier configuration of lwIP parameters such as memory usage,
2992 TTLs, statistics gathering, etc. All configuration parameters are
2993 now kept in a single header file "lwipopts.h".
2994
2995 * The directory structure has been changed slightly so that all
2996 architecture specific files are kept under the src/arch
2997 hierarchy.
2998
2999 * Error propagation has been improved, both in the protocol modules
3000 and in the API.
3001
3002 * The code for the RTXC architecture has been implemented, tested
3003 and put to use.
3004
3005 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3006 the Internet checksum modules.
3007
3008 * Bugs related to porting between a 32-bit and a 16-bit architecture
3009 have been found and corrected.
3010
3011 * The license has been changed slightly to conform more with the
3012 original BSD license, including the advertisement clause.
3013
3014 (0.3.1) Changes since version 0.3
3015
3016 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3017 RAM never returned the RAM when the pbuf was deallocated.
3018
3019 * TCP congestion control, window updates and retransmissions did not
3020 work correctly. This has now been fixed.
3021
3022 * Bugfixes in the API.
3023
3024 (0.3) Changes since version 0.2
3025
3026 * New and improved directory structure. All include files are now
3027 kept in a dedicated include/ directory.
3028
3029 * The API now has proper error handling. A new function,
3030 netconn_err(), now returns an error code for the connection in
3031 case of errors.
3032
3033 * Improvements in the memory management subsystem. The system now
3034 keeps a pointer to the lowest free memory block. A new function,
3035 mem_malloc2() tries to allocate memory once, and if it fails tries
3036 to free some memory and retry the allocation.
3037
3038 * Much testing has been done with limited memory
3039 configurations. lwIP now does a better job when overloaded.
3040
3041 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3042
3043 * Many bugfixes in the TCP code:
3044
3045 - Fixed a bug in tcp_close().
3046
3047 - The TCP receive window was incorrectly closed when out of
3048 sequence segments was received. This has been fixed.
3049
3050 - Connections are now timed-out of the FIN-WAIT-2 state.
3051
3052 - The initial congestion window could in some cases be too
3053 large. This has been fixed.
3054
3055 - The retransmission queue could in some cases be screwed up. This
3056 has been fixed.
3057
3058 - TCP RST flag now handled correctly.
3059
3060 - Out of sequence data was in some cases never delivered to the
3061 application. This has been fixed.
3062
3063 - Retransmitted segments now contain the correct acknowledgment
3064 number and advertised window.
3065
3066 - TCP retransmission timeout backoffs are not correctly computed
3067 (ala BSD). After a number of retransmissions, TCP now gives up
3068 the connection.
3069
3070 * TCP connections now are kept on three lists, one for active
3071 connections, one for listening connections, and one for
3072 connections that are in TIME-WAIT. This greatly speeds up the fast
3073 timeout processing for sending delayed ACKs.
3074
3075 * TCP now provides proper feedback to the application when a
3076 connection has been successfully set up.
3077
3078 * More comments have been added to the code. The code has also been
3079 somewhat cleaned up.
3080
3081 (0.2) Initial public release.

savannah-hackers-public@gnu.org
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