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