5 * [Enter new changes just after this line - do not remove this line]
9 2011-08-24: Simon Goldschmidt
10 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
12 2011-07-26: Simon Goldschmidt
13 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
14 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
16 2011-07-21: Simon Goldschmidt (patch by hanhui)
17 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
18 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
19 Also added code to allow ip_forward() to forward non-broadcast packets to
20 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
22 2011-07-21: Simon Goldschmidt
23 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
24 ioctl/FIONREAD return the size of the next pending datagram.
26 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
27 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
30 2011-05-25: Simon Goldschmidt
31 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
32 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
33 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
34 code so that the code is more readable.
36 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
37 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
38 Ivan! (this is work in progress: we're just post release anyway :-)
40 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
41 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
47 2011-08-24: Simon Goldschmidt
48 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
50 2011-08-24: Simon Goldschmidt
51 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
52 accept() on UDP connections
54 2011-08-24: Simon Goldschmidt
55 * sockets.h: fixed bug #34057 socklen_t should be a typedef
57 2011-08-24: Simon Goldschmidt
58 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
60 2011-08-24: Simon Goldschmidt
61 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
63 2011-08-24: Simon Goldschmidt
64 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
66 2011-08-22: Simon Goldschmidt
67 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
68 merely prevents nagle from not transmitting fast after closing.)
70 2011-07-22: Simon Goldschmidt
71 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
72 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
73 lwip_send() sends as much as possible for non-blocking sockets
75 2011-07-22: Simon Goldschmidt
76 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
77 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
78 at regular intervals from main level.
80 2011-07-21: Simon Goldschmidt
81 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
82 sending an ARP request when an ARP entry is used in the last minute before
85 2011-07-04: Simon Goldschmidt
86 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
88 2011-06-26: Simon Goldschmidt
89 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
90 updating its documentation only.
92 2011-06-26: Simon Goldschmidt
93 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
96 2011-06-26: Simon Goldschmidt
97 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
105 2011-03-27: Simon Goldschmidt
106 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
107 calculate it in tcp_zero_window_probe (the only place where it was used).
109 2010-11-21: Simon Goldschmidt
110 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
113 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
114 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
115 IP_MULTICAST_LOOP at socket- and raw-API level.
117 2010-06-16: Simon Goldschmidt
118 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
119 link-layer-addressed UDP traffic to be received while a netif is down (just
120 like DHCP during configuration)
122 2010-05-22: Simon Goldschmidt
123 * many many files: bug #27352: removed packing from ip_addr_t, the packed
124 version is now only used in protocol headers. Added global storage for
125 current src/dest IP address while in input functions.
127 2010-05-16: Simon Goldschmidt
128 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
129 calculation (and use them throughout the stack where applicable)
131 2010-05-16: Simon Goldschmidt
132 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
133 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
135 2010-05-16: Simon Goldschmidt
136 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
137 MEMP pool instead of the heap
139 2010-05-13: Simon Goldschmidt
140 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
141 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
142 packets to more than one pcb.
144 2010-05-02: Simon Goldschmidt
145 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
146 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
148 2010-04-30: Simon Goldschmidt
149 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
150 take a precalculated checksum, added pbuf_fill_chksum() to copy data
151 into a pbuf and at the same time calculating the checksum for that data
153 2010-04-29: Simon Goldschmidt
154 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
155 2-byte-aligned IP addresses and MAC addresses
157 2010-04-28: Patch by Bill Auerbach
158 * ip.c: Inline generating IP checksum to save a function call
160 2010-04-14: Simon Goldschmidt
161 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
162 tcpip_thread processes messages or timeouts to implement a watchdog.
164 2010-03-28: Simon Goldschmidt
165 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
166 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
168 2010-03-27: Simon Goldschmidt
169 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
170 etharp_query to prevent unnecessary function calls (inspired by
173 2010-03-20: Simon Goldschmidt
174 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
175 since the linker cannot do this automatically to save space.
177 2010-03-20: Simon Goldschmidt
178 * opt.h, etharp.c/.h: Added support for static ARP table entries
180 2010-03-14: Simon Goldschmidt
181 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
182 when creating TCP segments, not when (re-)transmitting them.
184 2010-03-07: Simon Goldschmidt
185 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
186 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
187 This should speed up receiving data on sockets as the select code in
188 event_callback is only executed when select is waiting.
190 2010-03-06: Simon Goldschmidt
191 * tcp_out.c: task #7013 (Create option to have all packets delivered to
192 netif->output in one piece): Always copy to try to create single pbufs
195 2010-03-06: Simon Goldschmidt
196 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
197 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
198 for tcp netconns to receive pbufs, not netbufs; use that function
201 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
202 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
203 Work on tcp_enqueue: Don't waste memory when chaining segments,
204 added option TCP_OVERSIZE to prevent creating many small pbufs when
205 calling tcp_write with many small blocks of data. Instead, pbufs are
206 allocated larger than needed and the space is used for later calls to
209 2010-02-21: Simon Goldschmidt
210 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
213 2010-02-21: Simon Goldschmidt
214 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
215 implementation of tcp to make API usage cleare to application programmers
217 2010-02-14: Simon Goldschmidt/Stephane Lesage
218 * ip_addr.h: Improved some defines working on ip addresses, added faster
219 macro to copy addresses that cannot be NULL
221 2010-02-13: Simon Goldschmidt
222 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
223 blocking send operation)
225 2010-02-12: Simon Goldschmidt
226 * sockets.c/.h: Added a minimal version of posix fctl() to have a
227 standardised way to set O_NONBLOCK for nonblocking sockets.
229 2010-02-12: Simon Goldschmidt
230 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
231 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
232 and dhcp work with user-allocated structs instead of callin mem_malloc
234 2010-02-12: Simon Goldschmidt/Jeff Barber
235 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
236 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
238 2010-02-12: Simon Goldschmidt
239 * sys layer: task #10139 (Prefer statically allocated memory): converted
240 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
241 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
242 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
243 to let sys.h use binary semaphores instead of mutexes - as before)
245 2010-02-09: Simon Goldschmidt (Simon Kallweit)
246 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
247 (Restart system timeout handling)
249 2010-02-09: Simon Goldschmidt
250 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
251 netif.c) - loopif does not have to be created by the port any more,
252 just define LWIP_HAVE_LOOPIF to 1.
254 2010-02-08: Simon Goldschmidt
255 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
256 inet_ntoa_r/ipaddr_ntoa_r
258 2010-02-08: Simon Goldschmidt
259 * netif.h: Added netif_s/get_igmp_mac_filter() macros
261 2010-02-05: Simon Goldschmidt
262 * netif.h: Added function-like macros to get/set the hostname on a netif
264 2010-02-04: Simon Goldschmidt
265 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
266 make changing the actual implementation behind the typedef easier.
268 2010-02-01: Simon Goldschmidt
269 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
270 for allocating memory when getaddrinfo() is called.
272 2010-01-31: Simon Goldschmidt
273 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
274 them once instead of parsing for every option. This also removes
275 the need for mem_malloc from dhcp_recv and makes it possible to
276 correctly retrieve the BOOTP file.
278 2010-01-30: simon Goldschmidt
279 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
282 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
283 * api.h, api_msg.c, sockets.c: Added except set support in select
286 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
287 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
288 Add non-blocking support for connect (partly from patch #6860),
289 plus many cleanups in socket & netconn API.
291 2010-01-27: Simon Goldschmidt
292 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
293 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
295 2010-01-26: Simon Goldschmidt
296 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
298 2010-01-14: Simon Goldschmidt
299 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
300 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
302 2010-01-13: Simon Goldschmidt
303 * mem.c: The heap now may be moved to user-defined memory by defining
304 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
305 (patch #6966 and bug #26133)
307 2010-01-10: Simon Goldschmidt (Bill Auerbach)
308 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
311 2010-01-10: Simon Goldschmidt
312 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
313 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
315 2009-12-31: Simon Goldschmidt
316 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
317 added timers.c/.h: Separated timer implementation from semaphore/mbox
318 implementation, moved timer implementation to timers.c/.h, timers are
319 now only called from tcpip_thread or by explicitly checking them.
322 2009-12-27: Simon Goldschmidt
323 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
324 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
329 2011-04-20: Simon Goldschmidt
330 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
332 2011-04-13: Simon Goldschmidt
333 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
334 using ports in the IANA private/dynamic range (49152 through 65535).
336 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
337 * etharp.h/.c: Fixed broken VLAN support.
339 2011-03-27: Simon Goldschmidt
340 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
341 pcbs) by checking if the pcb was bound (local_port != 0).
343 2011-03-27: Simon Goldschmidt
344 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
346 2011-03-27: Simon Goldschmidt
347 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
348 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
350 2011-03-27: Simon Goldschmidt
351 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
352 is present never times out) by starting retransmission timer before checking
355 2011-03-22: Simon Goldschmidt
356 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
357 calling sio_read_abort() if the file descriptor is valid.
359 2011-03-14: Simon Goldschmidt
360 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
361 more than once can render a socket useless) since it mainly involves changing
362 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
364 2011-03-13: Simon Goldschmidt
365 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
366 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
367 use EALRADY instead of -1
369 2011-03-13: Simon Goldschmidt
370 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
371 connection has been aborted by err_tcp (since this is not a normal closing
374 2011-03-13: Simon Goldschmidt
375 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
376 with pcb->state != CLOSED
378 2011-02-17: Simon Goldschmidt
379 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
382 2011-02-17: Simon Goldschmidt
383 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
385 2011-01-24: Simon Goldschmidt
386 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
388 2010-12-02: Simon Goldschmidt
389 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
391 2010-11-23: Simon Goldschmidt
392 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
393 LWIP_SO_RCVBUF and ioctl/FIONREAD.
395 2010-11-23: Simon Goldschmidt
396 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
397 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
399 2010-11-23: Simon Goldschmidt
400 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
401 refusing 'refused_data' again.
403 2010-11-22: Simon Goldschmidt
404 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
405 after a successful nonblocking connection.
407 2010-11-22: Simon Goldschmidt
408 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
409 must be sent link-local
411 2010-11-22: Simon Goldschmidt
412 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
415 2010-11-20: Simon Goldschmidt
416 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
418 2010-11-20: Simon Goldschmidt
419 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
420 resemble other stacks.
422 2010-11-20: Simon Goldschmidt
423 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
424 no-copy TCP writes will never succeed.
426 2010-11-20: Simon Goldschmidt
427 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
428 not match documentation: return ERR_ARG instead of ERR_VAL if not
429 initialized or wrong argument.
431 2010-10-20: Simon Goldschmidt
432 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
434 2010-10-05: Simon Goldschmidt
435 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
436 replugging the network cable after an AutoIP address was assigned.
438 2010-08-10: Simon Goldschmidt
439 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
441 2010-08-03: Simon Goldschmidt
442 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
444 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
445 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
446 endian architectures)
448 2010-07-28: Simon Goldschmidt
449 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
452 2010-07-27: Simon Goldschmidt
453 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
454 harm but never did anything
456 2010-07-21: Simon Goldschmidt
457 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
460 2010-07-16: Kieran Mansley
461 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
463 2010-07-10: Simon Goldschmidt
464 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
466 2010-06-30: Simon Goldschmidt
467 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
470 2010-06-28: Kieran Mansley
471 * timers.c remove unportable printing of C function pointers
473 2010-06-24: Simon Goldschmidt
474 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
475 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
477 2010-06-24: Simon Goldschmidt
478 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
479 implemented shutdown at socket level.
481 2010-06-21: Simon Goldschmidt
482 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
483 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
484 custom pbufs that reference other (original) pbufs. Additionally set
485 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
487 2010-06-15: Simon Goldschmidt
488 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
490 2010-06-14: Simon Goldschmidt
491 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
493 2010-06-12: Simon Goldschmidt
494 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
497 2010-05-17: Simon Goldschmidt
498 * netdb.c: Correctly NULL-terminate h_addr_list
500 2010-05-16: Simon Goldschmidt
501 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
502 "symbol already defined" i.e. when linking to winsock
504 2010-05-05: Simon Goldschmidt
505 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
508 2010-04-21: Simon Goldschmidt
509 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
512 2010-03-28: Luca Ceresoli
513 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
515 2010-03-27: Luca Ceresoli
516 * mib2.c: patch #7130: remove meaningless const qualifiers
518 2010-03-26: Simon Goldschmidt
519 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
521 2010-03-26: Simon Goldschmidt
522 * various files: Fixed compiling with different options disabled (TCP/UDP),
523 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
525 2010-03-25: Simon Goldschmidt
526 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
528 2010-03-25: Simon Goldschmidt
529 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
530 overrunning our rcv_wnd in ooseq case.
532 2010-03-22: Simon Goldschmidt
533 * tcp.c: tcp_listen() did not copy the pcb's prio.
535 2010-03-19: Simon Goldschmidt
536 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
538 2010-03-14: Simon Goldschmidt
539 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
540 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
541 and basing PBUF_LINK_HLEN on it.
543 2010-03-08: Simon Goldschmidt
544 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
545 when assiging routable address): when checking incoming packets and
546 aborting existing connection on address change, filter out link-local
549 2010-03-06: Simon Goldschmidt
550 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
552 2010-03-06: Simon Goldschmidt
553 * ipv4/ip.c: Don't try to forward link-local addresses
555 2010-03-06: Simon Goldschmidt
556 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
559 2010-03-05: Simon Goldschmidt
560 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
563 2010-03-05: Simon Goldschmidt
564 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
565 into multiple calls to tcp_write.
567 2010-02-21: Simon Goldschmidt
568 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
569 the implementation of DNS_USES_STATIC_BUF==1)
571 2010-02-20: Simon Goldschmidt
572 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
573 close() vs. shutdown(). Now the application does not get any more
574 recv callbacks after calling tcp_close(). Added tcp_shutdown().
576 2010-02-19: Simon Goldschmidt
577 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
578 confusion with realloc()
580 2010-02-15: Simon Goldschmidt/Stephane Lesage
581 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
584 2010-02-14: Simon Goldschmidt
585 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
586 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
587 admin-status of a netif are up
589 2010-02-14: Simon Goldschmidt
590 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
591 reception and is not really necessary
593 2010-02-14: Simon Goldschmidt
594 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
595 request was directed as us (RFC 826, Packet Reception), otherwise
596 only update existing entries; internalized some functions
598 2010-02-14: Simon Goldschmidt
599 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
600 disabled on netif used for PPPoE) by adding a new netif flag
601 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
602 device but prevents usage of ARP (so that ethernet_input can be used
605 2010-02-12: Simon Goldschmidt
606 * netif.c: netif_set_link_up/down: only do something if the link state
609 2010-02-12: Simon Goldschmidt/Stephane Lesage
610 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
613 2010-02-12: Simon Goldschmidt
614 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
616 2010-02-09: Simon Goldschmidt
617 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
618 (recv() makes receive window update for data that wasn't received by
621 2010-02-09: Simon Goldschmidt/Stephane Lesage
622 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
623 or any netconn_recv() error)
625 2010-02-09: Simon Goldschmidt
626 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
628 2010-02-09: Simon Goldschmidt
629 * netif.c: For loopback packets, adjust the stats- and snmp-counters
630 for the loopback netif.
632 2010-02-08: Simon Goldschmidt
633 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
634 since they are not used anywhere else.
636 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
637 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
638 (patch from bug #28798)
640 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
641 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
642 another bug when LWIP_RAND() returns zero.
644 2010-02-04: Simon Goldschmidt
645 * nearly every file: Use macros defined in ip_addr.h (some of them new)
646 to work with IP addresses (preparation for bug #27352 - Change ip_addr
647 from struct to typedef (u32_t) - and better code).
649 2010-01-31: Simon Goldschmidt
650 * netif.c: Don't call the link-callback from netif_set_up/down() since
651 this invalidly retriggers DHCP.
653 2010-01-29: Simon Goldschmidt
654 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
655 portability file inet.h and its contents from the stack: moved htonX-
656 functions to def.h (and the new def.c - they are not ipv4 dependent),
657 let inet.h depend on ip_addr.h and not the other way round.
658 This fixes bug #28732.
660 2010-01-28: Kieran Mansley
661 * tcp.c: Ensure ssthresh >= 2*MSS
663 2010-01-27: Simon Goldschmidt
664 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
665 callback can lead to accessing unallocated memory. As a consequence,
666 ERR_ABRT means the application has called tcp_abort()!
668 2010-01-25: Simon Goldschmidt
669 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
670 not implemented in SNMP): write-only or not-accessible are still
671 returned by getnext (though not by get)
673 2010-01-24: Simon Goldschmidt
674 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
675 not use reserved C/C++ keywords
677 2010-01-23: Simon Goldschmidt
678 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
681 2010-01-21: Simon Goldschmidt
682 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
683 if tcp_enqueue fails) both in raw- and netconn-API
685 2010-01-19: Simon Goldschmidt
686 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
688 2010-01-18: Iordan Neshev/Simon Goldschmidt
689 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
690 bugfix backports from 2.4.x.
692 2010-01-18: Simon Goldschmidt
693 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
695 2010-01-17: Simon Goldschmidt
696 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
697 task #10102: "netconn: clean up conn->err threading issues" by adding
698 error return value to struct api_msg_msg
700 2010-01-17: Simon Goldschmidt
701 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
702 to return err_t (bugs #27709 and #28087)
704 2010-01-14: Simon Goldschmidt
705 * ...: Use typedef for function prototypes throughout the stack.
707 2010-01-13: Simon Goldschmidt
708 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
709 window = 0) by correctly draining recvmbox/acceptmbox
711 2010-01-11: Simon Goldschmidt
712 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
713 erroneous callbacks) by copying the code from recent pppd
715 2010-01-10: Simon Goldschmidt
716 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
718 2010-01-10: Simon Goldschmidt
719 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
721 2010-01-08: Simon Goldschmidt
722 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
724 2010-01-08: Simon Goldschmidt
725 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
726 passed to dns_local_addhost() might be volatile
728 2010-01-07: Simon Goldschmidt
729 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
731 2010-01-06: Simon Goldschmidt
732 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
734 2009-12-31: Simon Goldschmidt
735 * many ppp files: Reorganised PPP source code from ucip structure to pppd
736 structure to easily compare our code against the pppd code (around v2.3.1)
738 2009-12-27: Simon Goldschmidt
739 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
747 2009-10-27 Simon Goldschmidt/Stephan Lesage
748 * netifapi.c/.h: Added netifapi_netif_set_addr()
750 2009-10-07 Simon Goldschmidt/Fabian Koch
751 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
752 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
754 2009-08-26 Simon Goldschmidt/Simon Kallweit
755 * slipif.c/.h: bug #26397: SLIP polling support
757 2009-08-25 Simon Goldschmidt
758 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
759 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
761 2009-08-25 Simon Goldschmidt
762 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
764 2009-08-24 Jakob Stoklund Olesen
765 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
766 to netif_set_link_up().
768 2009-08-23 Simon Goldschmidt
769 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
770 to a human-readable string.
774 2009-12-24: Kieran Mansley
775 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
778 2009-12-06: Simon Goldschmidt
779 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
780 be statically allocated (like in ucip)
782 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
783 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
785 2009-12-03: Simon Goldschmidt
786 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
787 could have non-zero length
789 2009-12-02: Simon Goldschmidt
790 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
791 tcp_input_pcb until after calling the pcb's callbacks
793 2009-11-29: Simon Goldschmidt
794 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
795 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
797 2009-11-29: Simon Goldschmidt
798 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
799 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
801 2009-11-26: Simon Goldschmidt
802 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
805 2009-11-26: Simon Goldschmidt
806 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
807 algorithm at PCB level
809 2009-11-22: Simon Goldschmidt
810 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
812 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
813 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
814 reusing time-wait pcb
816 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
817 * sockets.c: Fixed bug #28062: Data received directly after accepting
818 does not wake up select
820 2009-11-11: Simon Goldschmidt
821 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
823 2009-10-30: Simon Goldschmidt
824 * opt.h: Increased default value for TCP_MSS to 536, updated default
825 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
827 2009-10-28: Kieran Mansley
828 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
829 to follow algorithm from TCP/IP Illustrated
831 2009-10-27: Kieran Mansley
832 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
834 2009-10-25: Simon Goldschmidt
835 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
836 pcb->recv is NULL to keep rcv_wnd correct)
838 2009-10-25: Simon Goldschmidt
839 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
841 2009-10-23: Simon Goldschmidt (David Empson)
842 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
844 2009-10-21: Simon Goldschmidt
845 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
846 trailing 1 byte len (SYN/FIN)
848 2009-10-21: Simon Goldschmidt
849 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
851 2009-10-19: Simon Goldschmidt
852 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
853 conditional code to assert where applicable), check pbuf length before
854 testing for valid reply
856 2009-10-19: Simon Goldschmidt
857 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
858 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
860 2009-10-16: Simon Goldschmidt
861 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
862 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
865 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
866 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
868 2009-10-15: Simon Goldschmidt
869 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
872 2009-10-15: Simon Goldschmidt
873 * autoip.c: Fixed bug #27704: autoip starts with wrong address
874 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
875 of network byte order
877 2009-10-11 Simon Goldschmidt (Jörg Kesten)
878 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
879 which are not consecutive when retransmitting unacked segments
881 2009-10-09 Simon Goldschmidt
882 * opt.h: Fixed default values of some stats to only be enabled if used
883 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
885 2009-08-30 Simon Goldschmidt
886 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
887 function" by checking for loopback before calling ip_frag
889 2009-08-25 Simon Goldschmidt
890 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
892 2009-08-23 Simon Goldschmidt
893 * ppp.c: bug #27078: Possible memory leak in pppInit()
895 2009-08-23 Simon Goldschmidt
896 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
899 2009-08-23 Simon Goldschmidt
900 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
901 Fixed wrong parenthesis, added check in init.c
903 2009-08-23 Simon Goldschmidt
904 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
906 2009-08-23 Simon Goldschmidt
907 * many ppp files: bug #27267: Added include to string.h where needed
909 2009-08-23 Simon Goldschmidt
910 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
917 2009-05-10 Simon Goldschmidt
918 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
919 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
920 one pbuf to help MACs that don't support scatter-gather DMA.
922 2009-05-09 Simon Goldschmidt
923 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
924 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
926 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
927 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
928 extended info about the currently received packet.
930 2009-04-27 Simon Goldschmidt
931 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
933 2009-04-25 Simon Goldschmidt
934 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
935 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
937 2009-04-21 Simon Goldschmidt
938 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
939 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
940 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
941 as an external function for lookup.
943 2009-04-15 Simon Goldschmidt
944 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
946 2009-03-31 Kieran Mansley
947 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
948 TCP timestamp options, off by default. Rework tcp_enqueue() to
949 take option flags rather than specified option data
951 2009-02-18 Simon Goldschmidt
952 * cc.h: Added printf formatter for size_t: SZT_F
954 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
955 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
958 2009-02-12 Simon Goldschmidt
959 * init.h: Added LWIP_VERSION to get the current version of the stack
961 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
962 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
963 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
966 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
967 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
968 is only used by UDPLITE at present, so conditionalise it.
970 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
971 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
972 "seed" address. This should reduce AUTOIP conflicts if
973 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
975 2008-10-02 Jonathan Larmour and Rishi Khan
976 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
979 2008-06-30 Simon Goldschmidt
980 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
981 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
982 mem_free to run between mem_malloc iterations. Added illegal counter for
985 2008-06-27 Simon Goldschmidt
986 * stats.h/.c, some other files: patch #6483: stats module improvement:
987 Added defines to display each module's statistic individually, added stats
988 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
990 2008-06-17 Simon Goldschmidt
991 * err.h: patch #6459: Made err_t overridable to use a more efficient type
992 (define LWIP_ERR_T in cc.h)
994 2008-06-17 Simon Goldschmidt
995 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
998 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
999 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1000 modified version of patch # 6370: Moved loopif code to netif.c so that
1001 loopback traffic is supported on all netifs (all local IPs).
1002 Added option to limit loopback packets for each netifs.
1006 2009-08-12 Kieran Mansley
1007 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1008 out of window or out of order properly
1010 2009-08-12 Kieran Mansley
1011 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1013 2009-07-28 Simon Goldschmidt
1014 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1016 2009-07-27 Kieran Mansley
1017 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1019 2009-07-09 Kieran Mansley
1020 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1021 recv_avail and don't increment counters until message successfully
1024 2009-06-25 Kieran Mansley
1025 * api_msg.c api.h: BUG26722: initialise netconn write variables
1028 2009-06-25 Kieran Mansley
1029 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1031 2009-06-25 Kieran Mansley
1032 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1033 simultaneous close behaviour, and make snd_nxt have the same meaning
1036 2009-05-12 Simon Goldschmidt
1037 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1038 arp_table / uses etharp_query" by adding etharp_gratuitous()
1040 2009-05-12 Simon Goldschmidt
1041 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1042 to the IP header (used by igmp_ip_output_if)
1044 2009-05-06 Simon Goldschmidt
1045 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1046 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1048 2009-05-05 Simon Goldschmidt
1049 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1052 2009-05-04 Simon Goldschmidt
1053 * init.c: snmp was not initialized in lwip_init()
1055 2009-05-04 Frédéric Bernon
1056 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1058 2009-05-03 Simon Goldschmidt
1059 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1060 (and unsent->next == NULL)
1062 2009-05-02 Simon Goldschmidt
1063 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1064 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1066 2009-05-02 Simon Goldschmidt
1067 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1069 2009-05-01 Simon Goldschmidt
1070 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1072 2009-05-01 Simon Goldschmidt
1073 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1075 2009-04-29 Frédéric Bernon
1076 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1077 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1078 of broadcast packets even when this option wasn't set. Port maintainers
1079 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1080 If you want this option also filter broadcast on recv operations, you also
1081 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1083 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1084 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1085 DHCP/AUTOIP cooperation
1087 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1088 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1089 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1090 right place in tcp_output and tcp_rexmit).
1092 2009-04-25 Simon Goldschmidt
1093 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1094 when debugging": memp_sizes contained the wrong sizes (including sanity
1095 regions); memp pools for MEM_USE_POOLS were too small
1097 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1098 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1099 behavior, with with ip address string not ended by a '\0', a space or a
1102 2009-04-19 Simon Goldschmidt
1103 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1104 pcb->err is called, not pcb->connected (with an error code).
1106 2009-04-19 Simon Goldschmidt
1107 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1108 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1110 2009-04-19 Simon Goldschmidt
1111 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1112 in the header pbuf, not the data pbuf)
1114 2009-04-18 Simon Goldschmidt
1115 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1117 2009-04-15 Simon Goldschmidt
1118 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1120 2009-04-15 Simon Goldschmidt
1121 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1123 2009-04-15 Simon Goldschmidt
1124 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1125 ip_hinted_output() (for smaller code mainly)
1127 2009-04-15 Simon Goldschmidt
1128 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1130 2009-04-15 Simon Goldschmidt
1131 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1132 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1133 is big enough in dhcp_start
1135 2009-04-15 Simon Goldschmidt
1136 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1138 2009-04-15 Simon Goldschmidt
1139 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1141 2009-04-15 Simon Goldschmidt
1142 * sockets.c: bug #26121: set_errno can be overridden
1144 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1145 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1148 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1149 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1152 2009-03-31 Kieran Mansley
1153 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1154 updates are calculated and sent (BUG20515)
1156 * tcp_in.c: cope with SYN packets received during established states,
1157 and retransmission of initial SYN.
1159 * tcp_out.c: set push bit correctly when tcp segments are merged
1161 2009-03-27 Kieran Mansley
1162 * tcp_out.c set window correctly on probes (correcting change made
1165 2009-03-26 Kieran Mansley
1166 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1167 connections where no reset required (bug #25622)
1169 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1172 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1173 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1174 too small depending on MEM_ALIGNMENT
1176 2009-02-16 Simon Goldschmidt
1177 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1178 converted size argument of netconn_write to 'size_t'
1180 2009-02-16 Simon Goldschmidt
1181 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1182 by moving accept callback function pointer to TCP_PCB_COMMON
1184 2009-02-12 Simon Goldschmidt
1185 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1188 2009-02-11 Simon Goldschmidt
1189 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1191 2009-02-11 Simon Goldschmidt
1192 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1193 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1195 2009-02-10 Simon Goldschmidt
1196 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1197 Accepts_pending is decrease on a corresponding listen pcb when a connection
1198 in state SYN_RCVD is close.
1200 2009-01-28 Jonathan Larmour
1201 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1204 2008-12-19 Simon Goldschmidt
1205 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1207 2008-12-10 Tamas Somogyi, Frédéric Bernon
1208 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1209 port uses deleted netbuf.
1211 2008-10-18 Simon Goldschmidt
1212 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1215 2008-10-15 Simon Goldschmidt
1216 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1217 by packing the struct ip_reass_helper.
1219 2008-10-03 David Woodhouse, Jonathan Larmour
1220 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1222 2008-10-02 Jonathan Larmour
1223 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1224 padding is included.
1226 2008-09-30 Jonathan Larmour
1227 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1228 assertion check that addrlen isn't NULL.
1230 2008-09-30 Jonathan Larmour
1231 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1233 2008-08-26 Simon Goldschmidt
1234 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1235 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1237 2008-08-14 Simon Goldschmidt
1238 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1239 tcp_close returns != ERR_OK)
1241 2008-07-08 Frédéric Bernon
1242 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1243 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1245 2008-06-24 Jonathan Larmour
1246 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1247 if tcp_seg_copy fails.
1249 2008-06-17 Simon Goldschmidt
1250 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1251 and created defines for swapping bytes and folding u32 to u16.
1253 2008-05-30 Kieran Mansley
1254 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1255 rather than rcv_ann_wnd when deciding if packets are in-window.
1256 Contributed by <arasmussen@consultant.datasys.swri.edu>
1258 2008-05-30 Kieran Mansley
1259 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1260 passing as function pointers when MEM_LIBC_MALLOC is defined.
1262 2008-05-09 Jonathan Larmour
1263 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1264 stop it being treated as a fatal error.
1266 2008-04-15 Simon Goldschmidt
1267 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1270 2008-03-27 Simon Goldschmidt
1271 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1272 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1273 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1274 or heap memory from interrupt context
1276 2008-03-26 Simon Goldschmidt
1277 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1278 host sent a zero mss as TCP option.
1285 2008-03-10 Jonathan Larmour
1286 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1287 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1289 2008-01-22 Frédéric Bernon
1290 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1291 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1293 2008-01-14 Frédéric Bernon
1294 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1295 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1296 tcp_recv callback (see rawapi.txt).
1298 2008-01-14 Frédéric Bernon, Marc Chaland
1299 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1301 2008-01-12 Frédéric Bernon
1302 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1303 netconn::sem per netconn::op_completed like suggested for the task #7490
1304 "Add return value to sys_mbox_post".
1306 2008-01-12 Frédéric Bernon
1307 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1308 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1309 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1311 2008-01-10 Frédéric Bernon
1312 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1313 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1314 "blocking" ("block" parameter = 1).
1316 2008-01-10 Frédéric Bernon
1317 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1318 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1319 "Add return value to sys_mbox_post".
1321 2008-01-05 Frédéric Bernon
1322 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1323 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1324 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1325 indicate the number of pointers query by the mailbox. There is three defines
1326 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1327 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1328 parameter in your implementation, but to ignore it to keep the previous behavior.
1329 The new sys_mbox_trypost function return a value to know if the mailbox is
1330 full or if the message is posted. Take a look to sys_arch.txt for more details.
1331 This new function is used in tcpip_input (so, can be called in an interrupt
1332 context since the function is not blocking), and in recv_udp and recv_raw.
1334 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1335 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1336 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1337 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1338 documentation in the rawapi.txt file.
1340 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1341 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1343 2007-12-31 Frédéric Bernon, Luca Ceresoli
1344 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1345 in autoip". The change in etharp_raw could be removed, since all calls to
1346 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1347 wrong in the future.
1349 2007-12-30 Frédéric Bernon, Tom Evans
1350 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1351 Filtering" reported by Tom Evans.
1353 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1354 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1355 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1356 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1357 keep accepting new connections.
1359 2007-12-13 Frédéric Bernon
1360 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1361 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1363 2007-12-12 Frédéric Bernon
1364 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1365 are the one which have ram usage.
1367 2007-12-05 Frédéric Bernon
1368 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1369 set of variables (=0) or a local one (=1). In this last case, your port should
1370 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1371 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1373 2007-12-03 Simon Goldschmidt
1374 * ip.c: ip_input: check if a packet is for inp first before checking all other
1375 netifs on netif_list (speeds up packet receiving in most cases)
1377 2007-11-30 Simon Goldschmidt
1378 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1379 UDP: move a (connected) pcb selected for input to the front of the list of
1380 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1383 2007-11-28 Simon Goldschmidt
1384 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1386 2007-11-25 Simon Goldschmidt
1387 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1390 2007-11-24 Simon Goldschmidt
1391 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1392 to the new file netdb.c; included lwip_getaddrinfo.
1394 2007-11-21 Simon Goldschmidt
1395 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1396 based on the MTU of the netif used to send. Enabled by default. Disable by
1397 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1399 2007-11-19 Frédéric Bernon
1400 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1401 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1402 copy dns payload to parse the response), return an error if there is no place
1403 for a new query, and fix some minor problems.
1405 2007-11-16 Simon Goldschmidt
1406 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1407 removed files: core/inet.c, core/inet6.c
1408 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1409 inet and chksum part; changed includes in all lwIP files as appropriate
1411 2007-11-16 Simon Goldschmidt
1412 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1413 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1414 (gethostbyname/gethostbyname_r).
1416 2007-11-15 Jim Pettinato, Frédéric Bernon
1417 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1418 requests with RAW api interface. Initialization is done in lwip_init() with
1419 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1420 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1421 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1422 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1423 list with points to improve.
1425 2007-11-06 Simon Goldschmidt
1426 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1427 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1428 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1430 2007-11-06 Simon Goldschmidt
1431 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1432 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1433 implementation from netconn api applications.
1435 2007-11-03 Frédéric Bernon
1436 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1437 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1438 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1439 it. This is a first release which have to be improve for TCP. Note it used the
1440 netconn::recv_avail which need to be more "thread-safe" (note there is already
1441 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1443 2007-11-01 Frédéric Bernon, Marc Chaland
1444 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1445 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1446 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1447 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1448 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1450 2007-10-24 Frédéric Bernon
1451 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1452 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1453 some code (like we have talk in "patch #5919 : Create compile switch to remove
1454 select code"), but it could be done later.
1456 2007-10-08 Simon Goldschmidt
1457 * many files: Changed initialization: many init functions are not needed any
1458 more since we now rely on the compiler initializing global and static
1461 2007-10-06 Simon Goldschmidt
1462 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1463 to enqueue the received pbufs so that multiple packets can be reassembled
1464 simultaneously and no static reassembly buffer is needed.
1466 2007-10-05 Simon Goldschmidt
1467 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1468 all netifs (or ports) can use it.
1470 2007-10-05 Frédéric Bernon
1471 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1472 common function to reduce a little bit the footprint (for all functions using
1473 only the "netif" parameter).
1475 2007-10-03 Frédéric Bernon
1476 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1477 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1478 a little bit the footprint (for all functions using only the "netif" parameter).
1480 2007-09-15 Frédéric Bernon
1481 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1482 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1483 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1484 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1486 2007-09-10 Frédéric Bernon
1487 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1488 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1489 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1490 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1491 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1492 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1493 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1494 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1495 when it's queried (any direct call to "sysuptime" is changed by a call to
1496 snmp_get_sysuptime).
1498 2007-09-09 Frédéric Bernon, Bill Florac
1499 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1500 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1501 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1502 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1503 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1504 the next query message to receive the matching multicast streams).
1506 2007-09-08 Frédéric Bernon
1507 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1508 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1509 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1510 Enable to access to these fields with LWIP_TCP=0.
1512 2007-09-05 Frédéric Bernon
1513 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1514 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1515 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1516 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1517 help to reduce footprint, and to reduce "visibility" on the Internet.
1519 2007-09-05 Frédéric Bernon, Bill Florac
1520 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1521 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1522 parameters have to be provided: a task name, and a task stack size. For this
1523 one, since it's platform dependant, you could define the best one for you in
1524 your lwipopts.h. For port maintainers, you can just add these new parameters
1525 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1528 2007-09-05 Frédéric Bernon
1529 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1530 inside init.c for task #7142 "Sanity check user-configurable values".
1532 2007-09-04 Frédéric Bernon, Bill Florac
1533 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1534 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1535 value). It will avoid potential fragmentation problems, use a counter to know
1536 how many times a group is used on an netif, and free it when all applications
1537 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1538 check if LWIP_IGMP!=0).
1540 2007-09-03 Frédéric Bernon
1541 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1542 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1543 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1544 and/or the "interface" field (for netconn layer), for join/leave operations.
1545 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1546 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1548 2007-08-30 Frédéric Bernon
1549 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1550 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1551 with other API (application based on raw API, or future "socket2" API). Ports
1552 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1554 2007-08-30 Frédéric Bernon, Jonathan Larmour
1555 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1556 user-configurable values".
1558 2007-08-29 Frédéric Bernon
1559 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1560 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1561 spirit than the others modules. Modify some IGMP debug traces.
1563 2007-08-29 Frédéric Bernon
1564 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1565 Add lwip_init function to regroup all modules initializations, and to provide
1566 a place to add code for task #7142 "Sanity check user-configurable values".
1567 Ports maintainers should remove direct initializations calls from their code,
1568 and add init.c in their makefiles. Note that lwip_init() function is called
1569 inside tcpip_init, but can also be used by raw api users since all calls are
1570 disabled when matching options are disabled. Also note that their is new options
1571 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1573 2007-08-26 Marc Boucher
1574 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1575 since they can under certain circumstances be called with an invalid conn
1576 pointer after the connection has been closed (and conn has been freed).
1578 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1579 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1580 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1582 2007-08-22 Frédéric Bernon
1583 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1584 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1586 2007-08-22 Frédéric Bernon
1587 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1588 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1589 name is tcpip_input (we keep the name of 1.2.0 function).
1591 2007-08-17 Jared Grubb
1592 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1593 settings into new memp_std.h and optional user file lwippools.h. This adds
1594 more dynamic mempools, and allows the user to create an arbitrary number of
1595 mempools for mem_malloc.
1597 2007-08-16 Marc Boucher
1598 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1599 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1600 close the connection.
1602 2007-08-16 Marc Boucher
1603 * sockets.c: lwip_accept(): check netconn_peer() error return.
1605 2007-08-16 Marc Boucher
1606 * mem.c, mem.h: Added mem_calloc().
1608 2007-08-16 Marc Boucher
1609 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1610 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1611 and starving other message types.
1612 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1614 2007-08-16 Marc Boucher
1615 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1616 type and flgs (later renamed to flags).
1617 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1618 Improved lwip_recvfrom(). TCP push now propagated.
1620 2007-08-16 Marc Boucher
1621 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1624 2007-08-16 Marc Boucher
1625 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1626 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1627 Added PPPoE support and various PPP improvements.
1629 2007-07-25 Simon Goldschmidt
1630 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1631 making netbuf_copy_partial use this function.
1633 2007-07-25 Simon Goldschmidt
1634 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1635 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1638 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1639 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1640 a link callback in the netif struct, and functions to handle it. Be carefull
1641 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1642 if you want to be sure to be compatible with future changes...
1644 2007-06-30 Frédéric Bernon
1645 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1647 2007-06-21 Simon Goldschmidt
1648 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1649 LWIP_AUTOIP =0 and =1 to remove redundant code.
1651 2007-06-21 Simon Goldschmidt
1652 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1653 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1654 heap. This both prevents memory fragmentation and gives a higher speed
1655 at the cost of more memory consumption. Turned off by default.
1657 2007-06-21 Simon Goldschmidt
1658 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1659 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1660 int to be able to send a bigger buffer than 64K with one time (mainly
1661 used from lwip_send).
1663 2007-06-21 Simon Goldschmidt
1664 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1665 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1667 2007-06-21 Simon Goldschmidt
1668 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1669 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1670 changes on low memory or empty send-buffer.
1672 2007-06-18 Simon Goldschmidt
1673 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1674 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1675 used for ethernet and struct eth_addr already had a defined length of 6).
1677 2007-06-17 Simon Goldschmidt
1678 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1679 to disable UDP checksum generation on transmit.
1681 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1682 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1683 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1684 this macro to check "conn" parameter in api_msg.c functions.
1686 2007-06-11 Simon Goldschmidt
1687 * sockets.c, sockets.h: Added UDP lite support for sockets
1689 2007-06-10 Simon Goldschmidt
1690 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1691 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1694 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1695 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1696 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1697 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1698 (see TODO mark in the source code).
1700 2007-06-09 Simon Goldschmidt
1701 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1702 etharp_output() to match netif->output so etharp_output() can be used
1703 directly as netif->output to save one function call.
1705 2007-06-08 Simon Goldschmidt
1706 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1707 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1708 added initialization of those to ethernetif, slipif and loopif.
1710 2007-05-18 Simon Goldschmidt
1711 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1712 (defaulting to off for now) that can be set to 0 to send fragmented
1713 packets by passing PBUF_REFs down the stack.
1715 2007-05-23 Frédéric Bernon
1716 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1717 connections, such present in patch #5959.
1719 2007-05-23 Frédéric Bernon
1720 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1721 code in only one part...
1723 2007-05-18 Simon Goldschmidt
1724 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1725 elements to overflow. This is achieved by adding some bytes before and after
1726 each pool element (increasing their size, of course), filling them with a
1727 prominent value and checking them on freeing the element.
1728 Set it to 2 to also check every element in every pool each time memp_malloc()
1729 or memp_free() is called (slower but more helpful).
1731 2007-05-10 Simon Goldschmidt
1732 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1733 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1736 2007-05-11 Frédéric Bernon
1737 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1738 Include a function pointer instead of a table index in the message to reduce
1739 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1740 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1742 2007-05-10 Simon Goldschmidt
1743 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1744 \ extern "C" {' in all header files. Now you can write your application using
1745 the lwIP stack in C++ and simply #include the core files. Note I have left
1746 out the netif/ppp/*h header files for now, since I don't know which files are
1747 included by applications and which are for internal use only.
1749 2007-05-09 Simon Goldschmidt
1750 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1751 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1752 situations where some compilers might inline the copy and save a function
1753 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1755 2007-05-08 Simon Goldschmidt
1756 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1757 to be overriden in case the C-library malloc implementation is not protected
1758 against concurrent access.
1760 2007-05-04 Simon Goldschmidt (Atte Kojo)
1761 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1762 multiple packets to the same host.
1764 2007-05-04 Frédéric Bernon, Jonathan Larmour
1765 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1766 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1767 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1768 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1769 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1770 these fields are now renamed "addr" & "port".
1772 2007-04-11 Jonathan Larmour
1773 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1774 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1775 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1776 by the port in sys_arch.h if desired.
1778 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1779 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1780 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1781 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1783 2007-04-05 Frédéric Bernon
1784 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1786 2007-04-04 Simon Goldschmidt
1787 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1788 use this for and architecture-independent form to tell the compiler you intentionally
1789 are not using this variable. Can be overriden in cc.h.
1791 2007-03-28 Frédéric Bernon
1792 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1793 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1794 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1795 It will be used by DHCP to register a client hostname, but can also be use when you call
1798 2007-03-28 Frédéric Bernon
1799 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1800 initialize a network interface's flag with. It tell this interface is an ethernet
1801 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1802 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1804 2007-03-26 Frédéric Bernon, Jonathan Larmour
1805 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1806 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1807 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1808 is done in tcpip_init function.
1810 2007-03-22 Frédéric Bernon
1811 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1812 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1813 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1814 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1815 but never used. Fix msg_in.c with the correct #if test for a stat display.
1817 2007-03-21 Kieran Mansley
1818 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1819 Provides callback on netif up/down state change.
1821 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1822 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1823 ip.c, netif.h, tcpip.c, opt.h:
1824 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1825 filter per all network interfaces. Declare a new function in netif to enable to
1826 control the MAC filter (to reduce lwIP traffic processing).
1828 2007-03-11 Frédéric Bernon
1829 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1830 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1831 unless you know what you're doing (default are RFC1122 compliant). Note
1832 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1834 2007-03-08 Frédéric Bernon
1835 * tcp.h: Keepalive values can be configured at compile time, but don't change
1836 this unless you know what you're doing (default are RFC1122 compliant).
1838 2007-03-08 Frédéric Bernon
1839 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1840 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1841 on UDP sockets/netconn.
1843 2007-03-08 Simon Goldschmidt
1844 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1846 2007-03-06 Frédéric Bernon
1847 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1848 Implement SO_RCVTIMEO on UDP sockets/netconn.
1850 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1851 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1852 on the stack and remove the API msg type from memp
1854 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1855 * sockets.h, sockets.c: Move socket initialization to new
1856 lwip_socket_init() function.
1857 NOTE: this changes the API with ports. Ports will have to be
1858 updated to call lwip_socket_init() now.
1860 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1861 * api_lib.c: Use memcpy in netbuf_copy_partial.
1866 2008-03-17 Frédéric Bernon, Ed Kerekes
1867 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1868 some problems to fill the IP header on some targets, use now the
1869 ip.h macros to do it).
1871 2008-03-13 Frédéric Bernon
1872 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1873 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1874 TCP connection caused a crash. Note that using (lwip_)recvfrom
1875 like this is a bit slow and that using (lwip)getpeername is the
1876 good lwip way to do it (so, using recv is faster on tcp sockets).
1878 2008-03-12 Frédéric Bernon, Jonathan Larmour
1879 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1880 recv_raw() does not consume data", and the ping sample (with
1881 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1882 returned the IP payload, without the IP header).
1884 2008-03-04 Jonathan Larmour
1885 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1886 and/or warnings on some systems where mem_size_t and size_t differ.
1887 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1889 2008-03-04 Kieran Mansley (contributions by others)
1890 * Numerous small compiler error/warning fixes from contributions to
1891 mailing list after 1.3.0 release candidate made.
1893 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1894 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1896 2008-01-15 Kieran Mansley
1897 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1898 prevented from sending by a small send window, not just a zero
1901 2008-01-09 Jonathan Larmour
1902 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1903 conflict with Linux system headers.
1905 2008-01-06 Jonathan Larmour
1906 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1907 address entirely on receiving a DHCPNAK, and restarting discovery.
1909 2007-12-21 Simon Goldschmidt
1910 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1911 is not protected" by using new macros for interlocked access to modify/test
1912 netconn->recv_avail.
1914 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1915 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1917 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1918 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1919 of silly window avoidance and prevent lwIP from shrinking the window)
1921 2007-12-04 Simon Goldschmidt
1922 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1923 data packet was lost): add assert that all segment lists are empty in
1924 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1925 state from LAST_ACK in tcp_process
1927 2007-12-02 Simon Goldschmidt
1928 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1929 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1930 has to be set to 0 in lwipopts.h
1932 2007-12-02 Simon Goldschmidt
1933 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1934 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1935 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1936 This is a fix for thread-safety and allocates all items needed for a netconn
1937 when the netconn is created.
1939 2007-11-30 Simon Goldschmidt
1940 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1941 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1942 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1943 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1945 2007-11-27 Simon Goldschmidt
1946 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1947 letting ip_route only use netifs that are up.
1949 2007-11-27 Simon Goldschmidt
1950 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1951 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1952 sockets block most operations once they have seen a fatal error.
1954 2007-11-27 Simon Goldschmidt
1955 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1956 netif to send as an argument (to be able to send on netifs that are down).
1958 2007-11-26 Simon Goldschmidt
1959 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1962 2007-11-21 Simon Goldschmidt
1963 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1964 Fixed the nagle algorithm; nagle now also works for all raw API applications
1965 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1967 2007-11-12 Frédéric Bernon
1968 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1969 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1970 context in do_getaddr.
1972 2007-11-10 Simon Goldschmidt
1973 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1974 happen any time). Now the packet simply isn't enqueued when out of memory.
1976 2007-11-01 Simon Goldschmidt
1977 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1978 TCP_MSS if that is smaller) as long as no MSS option is received from the
1981 2007-11-01 Simon Goldschmidt
1982 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1983 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1984 sending our configured TCP_MSS instead of the one received).
1986 2007-11-01 Simon Goldschmidt
1987 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1988 calculated based on the configured TCP_MSS, not on the MSS option received
1991 2007-10-09 Simon Goldschmidt
1992 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
1993 short and also was generated wrong if checksum coverage != tot_len;
1994 receive: checksum was calculated wrong if checksum coverage != tot_len
1996 2007-10-08 Simon Goldschmidt
1997 * mem.c: lfree was not updated in mem_realloc!
1999 2007-10-07 Frédéric Bernon
2000 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2001 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2002 this change cause an API breakage for netconn_addr, since a parameter
2003 type change. Any compiler should cause an error without any changes in
2004 yours netconn_peer calls (so, it can't be a "silent change"). It also
2005 reduce a little bit the footprint for socket layer (lwip_getpeername &
2006 lwip_getsockname use now a common lwip_getaddrname function since
2007 netconn_peer & netconn_addr have the same parameters).
2009 2007-09-20 Simon Goldschmidt
2010 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2011 by checking tcp_tw_pcbs also
2013 2007-09-19 Simon Goldschmidt
2014 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2016 2007-09-15 Mike Kleshov
2017 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2019 2007-09-06 Frédéric Bernon
2020 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2021 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2022 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2023 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2025 2007-08-30 Frédéric Bernon
2026 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2027 and fix some coding style.
2029 2007-08-28 Frédéric Bernon
2030 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2031 kind of packets. These packets are considered like Ethernet packets (payload
2032 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2033 are considered like IP packets (payload pointing to iphdr).
2035 2007-08-27 Frédéric Bernon
2036 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2037 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2038 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2040 2007-08-24 Kieran Mansley
2041 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2042 compiler (Paradigm C++)
2044 2007-08-09 Frédéric Bernon, Bill Florac
2045 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2046 Introduce IGMP_STATS to centralize statistics management.
2048 2007-08-09 Frédéric Bernon, Bill Florac
2049 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2050 packet on a udp pcb binded on an netif's IP address, and not on "any".
2052 2007-08-09 Frédéric Bernon, Bill Florac
2053 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2054 This is mainly on using lookup/lookfor, and some coding styles...
2056 2007-07-26 Frédéric Bernon (and "thedoctor")
2057 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2059 2007-07-25 Simon Goldschmidt
2060 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2061 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2062 (tcp_output is called again later from tcp timers).
2064 2007-07-25 Simon Goldschmidt
2065 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2066 copy_from_pbuf, which illegally modified the given pbuf.
2068 2007-07-25 Simon Goldschmidt
2069 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2070 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2072 2007-07-24 Simon Goldschmidt
2073 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2074 correct state (must be CLOSED).
2076 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2077 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2078 allocation. It now returns NULL.
2080 2007-07-13 Frédéric Bernon
2081 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2084 2007-07-13 Frédéric Bernon
2085 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2086 because current code doesn't follow rawapi.txt documentation.
2088 2007-07-13 Kieran Mansley
2089 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2090 out of sequence processing of received packets
2092 2007-07-03 Simon Goldschmidt
2093 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2094 assumption is made that this pbuf is in one piece (i.e. not chained). These
2095 assumptions clash with the possibility of converting to fully pool-based
2096 pbuf implementations, where PBUF_RAM pbufs might be chained.
2098 2007-07-03 Simon Goldschmidt
2099 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2100 when closing tcp netconns: removed conn->sem, less context switches when
2101 closing, both netconn_close and netconn_delete should safely close tcp
2104 2007-07-02 Simon Goldschmidt
2105 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2106 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2107 to cache ARP table indices with each pcb instead of single-entry cache for
2110 2007-07-02 Simon Goldschmidt
2111 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2112 warnings when assigning to smaller types.
2114 2007-06-28 Simon Goldschmidt
2115 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2117 2007-06-28 Simon Goldschmidt
2118 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2119 a segment contained chained pbufs)
2121 2007-06-28 Frédéric Bernon
2122 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2123 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2124 possible to define this macro in your own lwipopts.h to always use C library's
2125 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2127 2007-06-28 Frédéric Bernon
2128 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2129 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2130 in api_lib/api_msg (use pointers and not type with table, etc...)
2132 2007-06-26 Simon Goldschmidt
2133 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2135 2007-06-25 Simon Goldschmidt
2136 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2137 for udp packets with no matching pcb.
2139 2007-06-25 Simon Goldschmidt
2140 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2141 could get udp input packets if the remote side matched.
2143 2007-06-13 Simon Goldschmidt
2144 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2145 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2147 2007-06-13 Simon Goldschmidt
2148 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2149 -> netconn_new_..() does not allocate a new connection for unsupported
2152 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2153 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2154 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2156 2007-06-13 Frédéric Bernon, Matthias Weisser
2157 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2158 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2159 some macro names collision with some OS macros.
2161 2007-06-11 Simon Goldschmidt
2162 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2163 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2164 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2167 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2168 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2169 where TCP flags wasn't initialized in tcp_keepalive.
2171 2007-06-03 Simon Goldschmidt
2172 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2173 registered, p->payload was modified without modifying p->len if sending
2174 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2176 2007-06-03 Simon Goldschmidt
2177 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2178 re-used the input pbuf even if that didn't have enough space to include the
2179 link headers. Now the space is tested and a new pbuf is allocated for the
2180 echo response packet if the echo request pbuf isn't big enough.
2182 2007-06-01 Simon Goldschmidt
2183 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2185 2007-05-23 Frédéric Bernon
2186 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2187 allocated by do_listen if success) and netconn_accept errors handling. In
2188 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2189 by ASSERT, except for netconn_delete.
2191 2007-05-23 Frédéric Bernon
2192 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2193 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2194 directly close the recvmbox).
2196 2007-05-22 Simon Goldschmidt
2197 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2198 bound but unconnected (and non-listening) tcp_pcbs.
2200 2007-05-22 Frédéric Bernon
2201 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2202 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2203 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2204 like "sys_timeout" in their application threads.
2206 2007-05-22 Frédéric Bernon
2207 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2208 which parameters are used by which do_xxx function, and to avoid "misusing"
2209 parameters (patch #5938).
2211 2007-05-22 Simon Goldschmidt
2212 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2213 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2214 is only 8 bits wide. This affects the api, as there, the protocol was
2217 2007-05-18 Simon Goldschmidt
2218 * memp.c: addition to patch #5913: smaller pointer was returned but
2219 memp_memory was the same size -> did not save memory.
2221 2007-05-16 Simon Goldschmidt
2222 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2225 2007-05-16 Simon Goldschmidt
2226 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2227 as the one of the netif used for sending to prevent sending from old
2228 addresses after a netif address gets changed (partly fixes bug #3168).
2230 2007-05-16 Frédéric Bernon
2231 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2232 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2233 tcpip_init) because we have to be sure that network interfaces are already
2234 added (mac filter is updated only in igmp_init for the moment).
2236 2007-05-16 Simon Goldschmidt
2237 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2238 into sys_arch_sem_wait calls to prevent timers from running while waiting
2239 for the heap. This fixes bug #19167.
2241 2007-05-13 Simon Goldschmidt
2242 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2243 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2246 2007-05-07 Simon Goldschmidt
2247 * mem.c: Another attempt to fix bug #17922.
2249 2007-05-04 Simon Goldschmidt
2250 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2251 implementation so that it can be reused (don't allocate the target
2252 pbuf inside pbuf_copy()).
2254 2007-05-04 Simon Goldschmidt
2255 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2256 to save a little RAM (next pointer of memp is not used while not in pool).
2259 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2262 2007-04-23 Simon Goldschmidt
2263 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2264 in NULL reference for incoming TCP packets". Loopif has to be configured
2265 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2266 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2267 putting packets on a list that is fed to the stack by calling loopif_poll()
2268 (single-thread / NO_SYS / polling environment where e.g.
2269 netif->input() = ip_input).
2271 2007-04-17 Jonathan Larmour
2272 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2273 the difference between two u16_t's.
2274 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2275 MEMP_NUM_NETCONN in sockets.c right now.
2277 2007-04-12 Jonathan Larmour
2278 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2280 2007-04-12 Kieran Mansley
2281 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2282 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2284 2007-04-11 Simon Goldschmidt
2285 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2286 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2287 pbuf.c: removed functions no needed any more (by etharp).
2289 2007-04-11 Kieran Mansley
2290 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2291 "Constant is long" warnings with 16bit compilers. Contributed by
2292 avatar@mmlab.cse.yzu.edu.tw
2294 2007-04-05 Frédéric Bernon, Jonathan Larmour
2295 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2296 the mailbox is active". Now, the post is only done during a connect, and do_send,
2297 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2299 2007-04-03 Frédéric Bernon
2300 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2301 packets. See patch #5834.
2303 2007-03-30 Frédéric Bernon
2304 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2305 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2307 2007-03-30 Frédéric Bernon
2308 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2309 others environment defines (these were too "generic").
2311 2007-03-28 Frédéric Bernon
2312 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2313 result and can cause a crash. lwip_send now check netbuf_ref result.
2315 2007-03-28 Simon Goldschmidt
2316 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2317 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2318 defined. This is the way it should have been already (looking at
2321 2007-03-28 Kieran Mansley
2322 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2323 IP and TCP headers *and* physical link headers
2325 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2326 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2327 to send some garbage. It is not a definitive solution, but the patch does solve
2328 the problem for most cases.
2330 2007-03-22 Frédéric Bernon
2331 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2333 2007-03-22 Frédéric Bernon
2334 * api_lib.c: somes resources couldn't be freed if there was errors during
2335 netconn_new_with_proto_and_callback.
2337 2007-03-22 Frédéric Bernon
2338 * ethernetif.c: update netif->input calls to check return value. In older ports,
2339 it's a good idea to upgrade them, even if before, there could be another problem
2340 (access to an uninitialized mailbox).
2342 2007-03-21 Simon Goldschmidt
2343 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2344 by casting to unsigned).
2346 2007-03-21 Frédéric Bernon
2347 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2348 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2349 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2350 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2351 faster and more reliable communication between api_lib and tcpip.
2353 2007-03-21 Frédéric Bernon
2354 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2356 2007-03-21 Frédéric Bernon
2357 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2359 2007-03-21 Kieran Mansley
2360 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2363 2007-03-21 Kieran Mansley
2364 * Fix all uses of pbuf_header to check the return value. In some
2365 cases just assert if it fails as I'm not sure how to fix them, but
2366 this is no worse than before when they would carry on regardless
2369 2007-03-21 Kieran Mansley
2370 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2371 comment out missing header include in icmp.c
2373 2007-03-20 Frédéric Bernon
2374 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2375 synchronized with memp.h.
2377 2007-03-20 Frédéric Bernon
2378 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2379 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2380 network interfaces. Also fix a compiler warning.
2382 2007-03-20 Kieran Mansley
2383 * udp.c: Only try and use pbuf_header() to make space for headers if
2384 not a ROM or REF pbuf.
2386 2007-03-19 Frédéric Bernon
2387 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2390 2007-03-19 Frédéric Bernon
2391 * Remove unimplemented "memp_realloc" function from memp.h.
2393 2007-03-11 Simon Goldschmidt
2394 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2397 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2398 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2399 (missing `const' qualifier in socket functions), to get more compatible to
2400 standard POSIX sockets.
2402 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2403 * sockets.c: Add asserts inside bind, connect and sendto to check input
2404 parameters. Remove excessive set_errno() calls after get_socket(), because
2405 errno is set inside of get_socket(). Move last sock_set_errno() inside
2408 2007-03-09 Simon Goldschmidt
2409 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2410 was allocated too small.
2412 2007-03-06 Simon Goldschmidt
2413 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2414 the stack from concurrent access.
2416 2007-03-06 Frédéric Bernon, Dmitry Potapov
2417 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2418 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2420 2007-03-06 Simon Goldschmidt
2421 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2422 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2424 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2425 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2426 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2427 Allow to do ARP processing for incoming packets inside tcpip_thread
2428 (protecting ARP layer against concurrent access). You can also disable
2429 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2430 Older ports have to use tcpip_ethinput.
2432 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2433 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2434 from pointer target type"
2436 2007-03-05 Frédéric Bernon
2437 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2438 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2440 2007-03-04 Frédéric Bernon
2441 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2444 2007-03-04 Frédéric Bernon
2445 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2447 The api_msg struct stay on the stack (not moved to netconn struct).
2449 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2450 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2451 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2452 Also fixed cast warning in pbuf_alloc()
2454 2007-03-04 Simon Goldschmidt
2455 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2456 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2458 2007-03-03 Frédéric Bernon
2459 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2460 It is static, and never used in udp.c except udp_init().
2462 2007-03-02 Simon Goldschmidt
2463 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2464 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2465 initialized before tcpip_thread is running (e.g. before OS is started)
2467 2007-03-02 Frédéric Bernon
2468 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2471 2007-02-28 Kieran Mansley
2472 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2473 outside the region of the pbuf by pbuf_header()
2475 2007-02-28 Kieran Mansley
2476 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2477 when supplied timeout is also non-zero
2481 2006-12-05 Leon Woestenberg
2482 * CHANGELOG: Mention STABLE-1.2.0 release.
2486 2006-12-01 Christiaan Simons
2487 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2488 Note this is a workaround. Currently I have no other options left.
2490 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2491 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2492 to include/lwip/opt.h.
2493 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2494 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2495 * opt.h: Add above new options.
2497 2006-08-18 Christiaan Simons
2498 * tcp_{in,out}.c: added SNMP counters.
2499 * ipv4/ip.c: added SNMP counters.
2500 * ipv4/ip_frag.c: added SNMP counters.
2502 2006-08-08 Christiaan Simons
2503 * etharp.{c,h}: added etharp_find_addr() to read
2504 (stable) ethernet/IP address pair from ARP table
2506 2006-07-14 Christiaan Simons
2507 * mib_structs.c: added
2508 * include/lwip/snmp_structs.h: added
2509 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2511 2006-07-06 Christiaan Simons
2512 * snmp/asn1_{enc,dec}.c added
2514 * snmp/msg_{in,out}.c added
2515 * include/lwip/snmp_asn1.h added
2516 * include/lwip/snmp_msg.h added
2517 * doc/snmp_agent.txt added
2519 2006-03-29 Christiaan Simons
2520 * inet.c, inet.h: Added platform byteswap support.
2521 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2522 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2526 2006-11-30 Christiaan Simons
2527 * dhcp.c: Fixed false triggers of request_timeout.
2529 2006-11-28 Christiaan Simons
2530 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2532 2006-10-11 Christiaan Simons
2533 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2534 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2535 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2536 identifier from 170 to 136 (bug #17574).
2538 2006-10-10 Christiaan Simons
2539 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2541 2006-08-17 Christiaan Simons
2542 * udp.c: Fixed bug #17200, added check for broadcast
2543 destinations for PCBs bound to a unicast address.
2545 2006-08-07 Christiaan Simons
2546 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2548 2006-06-27 Christiaan Simons
2549 * api_msg.c: Applied patch for cold case (bug #11135).
2550 In accept_function() ensure newconn->callback is always initialized.
2552 2006-06-15 Christiaan Simons
2553 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2554 facilitate printing of mem_size_t and u16_t statistics.
2556 2006-06-14 Christiaan Simons
2557 * api_msg.c: Applied patch #5146 to handle allocation failures
2558 in accept() by Kevin Lawson.
2560 2006-05-26 Christiaan Simons
2561 * api_lib.c: Removed conn->sem creation and destruction
2562 from netconn_write() and added sys_sem_new to netconn_new_*.
2566 2006-03-03 Christiaan Simons
2567 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2568 access and added pbuf_alloc() return value checks.
2570 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2571 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2572 now handled by the checksum routine properly.
2574 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2575 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2576 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2578 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2579 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2580 submitted by Mitrani Hiroshi.
2582 2005-12-15 Christiaan Simons
2583 * inet.c: Disabled the added summing routine to preserve code space.
2585 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2586 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2587 Added Curt McDowell's optimized checksumming routine for future
2588 inclusion. Need to create test case for unaliged, aligned, odd,
2589 even length combination of cases on various endianess machines.
2591 2005-12-09 Christiaan Simons
2592 * inet.c: Rewrote standard checksum routine in proper portable C.
2594 2005-11-25 Christiaan Simons
2595 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2596 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2597 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2599 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2600 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2601 routine by Peter Jolasson.
2602 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2604 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2605 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2606 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2608 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2609 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2611 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2612 * udp.c: UDP pcb->recv() was called even when it was NULL.
2616 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2617 * etharp.*: Disabled multiple packets on the ARP queue.
2618 This clashes with TCP queueing.
2620 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2621 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2622 Halved the ARP period, doubled the period counts.
2623 ETHARP_MAX_PENDING now should be at least 2. This prevents
2624 the counter from reaching 0 right away (which would allow
2625 too little time for ARP responses to be received).
2627 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2628 * dhcp.c: Decline messages were not multicast but unicast.
2629 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2630 Do not try hard to insert arbitrary packet's source address,
2631 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2632 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2633 querying an address will see it appear in the cache (DHCP could
2634 suffer from this when a server invalidly gave an in-use address.)
2635 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2636 comparing network addresses (identifiers), not the network masks
2638 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2639 IP address actually belongs to the network of the given interface.
2641 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2642 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2646 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2647 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2648 even if one is already pending, if the rcv_wnd is above a threshold
2649 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2650 delayed ACK in order to open the window if the stack is only receiving data.
2652 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2653 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2655 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2656 * etharp.c: Make sure the first pbuf queued on an ARP entry
2657 is properly ref counted.
2659 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2660 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2661 warnings about comparison.
2662 * pbuf.c: Stopped compiler complaining of empty if statement
2663 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2664 * tcp.c: Stopped compiler complaining of empty if statement
2665 when LWIP_DEBUGF() empty.
2666 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2667 * inet.c: Added a couple of casts to quiet the compiler.
2668 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2670 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2671 * inet.c: Made data types consistent in inet_ntoa().
2672 Added casts for return values of checksum routines, to pacify compiler.
2673 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2674 Small corrections to some debugging statements, to pacify compiler.
2676 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2677 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2678 * ethernetif.c Updated low_level_output() to match prototype for
2679 netif->linkoutput and changed low_level_input() similarly for consistency.
2680 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2681 of raw_recv() in raw.h and so avoid compiler error.
2682 * sockets.c: Added trivial (int) cast to keep compiler happier.
2683 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2689 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2690 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2691 your cc.h file defines this either 1 or 0. If non-defined,
2693 * .c: Added <string.h> and <errno.h> includes where used.
2694 * etharp.c: Made some array indices unsigned.
2696 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2697 * netif.*: Added netif_set_up()/down().
2698 * dhcp.c: Changes to restart program flow.
2700 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2701 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2702 single-pass lookup for different candidates. Should exploit locality.
2704 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2705 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2706 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2707 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2708 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2712 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2713 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2714 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2715 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2716 is to prefix the 14-bit Ethernet headers with two padding bytes.
2718 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2719 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2720 * etharp.c: Fixed the case where the packet that initiates the ARP request
2721 is not queued, and gets lost. Fixed the case where the packets destination
2722 address is already known; we now always queue the packet and perform an ARP
2729 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2730 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2731 * Fixed two possible NULL references in rare cases.
2737 * Fixed DHCP which did not include the IP address in DECLINE messages.
2741 * etharp.c has been hauled over a bit.
2747 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2748 * Packets sent from ARP queue had invalid source hardware address.
2752 * Pass-by ARP requests do now update the cache.
2756 * No longer dependent on ctype.h.
2757 * New socket options.
2758 * Raw IP pcb support.
2764 * Some debug formatters and casts fixed.
2765 * Numereous fixes in PPP.
2769 * DEBUGF now is LWIP_DEBUGF
2770 * pbuf_dechain() has been re-enabled.
2771 * Mentioned the changed use of CVS branches in README.
2777 * Fixed pool pbuf memory leak in pbuf_alloc().
2778 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2779 Reported by Savin Zlobec.
2781 * PBUF_POOL chains had their tot_len field not set for non-first
2782 pbufs. Fixed in pbuf_alloc().
2786 * Added PPP stack contributed by Marc Boucher
2790 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2792 * ARP queueuing now queues the latest packet instead of the first.
2793 This is the RFC recommended behaviour, but can be overridden in
2800 * TCP has been fixed to deal with the new use of the pbuf->ref
2803 * DHCP dhcp_inform() crash bug fixed.
2807 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2808 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2809 Implemented by David Haas.
2815 * The packet buffer implementation has been enhanced to support
2816 zero-copy and copy-on-demand for packet buffers which have their
2817 payloads in application-managed memory.
2818 Implemented by David Haas.
2820 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2821 if an outgoing packet can be directly sent on the link, or perform
2822 a copy-on-demand when necessary.
2824 The application can safely assume the packet is sent, and the RAM
2825 is available to the application directly after calling udp_send()
2826 or similar function.
2830 * ARP_QUEUEING should now correctly work for all cases, including
2832 Implemented by Leon Woestenberg.
2836 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2837 to a '0.0.0.0' IP address.
2839 * The packet buffer implementation is changed. The pbuf->ref counter
2840 meaning has changed, and several pbuf functions have been
2841 adapted accordingly.
2843 * netif drivers have to be changed to set the hardware address length field
2844 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2845 See the contrib/ports/c16x cs8900 driver as a driver example.
2847 * netif's have a dhcp field that must be initialized to NULL by the driver.
2848 See the contrib/ports/c16x cs8900 driver as a driver example.
2850 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2851 logged in CVS but have not been explained here.
2853 (0.5.3) Changes since version 0.5.2
2857 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2858 threads because it wasn't protected by semaphores.
2862 * struct ip_addr now packed.
2864 * The name of the time variable in arp.c has been changed to ctime
2865 to avoid conflicts with the time() function.
2867 (0.5.2) Changes since version 0.5.1
2871 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2875 * A bug in tcp_parseopt() could cause the stack to hang because of a
2876 malformed TCP option.
2878 * The address of new connections in the accept() function in the BSD
2879 socket library was not handled correctly.
2881 * pbuf_dechain() did not update the ->tot_len field of the tail.
2883 * Aborted TCP connections were not handled correctly in all
2888 * All protocol header structs are now packed.
2890 * The ->len field in the tcp_seg structure now counts the actual
2891 amount of data, and does not add one for SYN and FIN segments.
2893 (0.5.1) Changes since version 0.5.0
2897 * Possible to run as a user process under Linux.
2899 * Preliminary support for cross platform packed structs.
2901 * ARP timer now implemented.
2905 * TCP output queue length was badly initialized when opening
2908 * TCP delayed ACKs were not sent correctly.
2910 * Explicit initialization of BSS segment variables.
2912 * read() in BSD socket library could drop data.
2914 * Problems with memory alignment.
2916 * Situations when all TCP buffers were used could lead to
2919 * TCP MSS option wasn't parsed correctly.
2921 * Problems with UDP checksum calculation.
2923 * IP multicast address tests had endianess problems.
2925 * ARP requests had wrong destination hardware address.
2929 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2931 * A ->linkoutput() member was added to struct netif.
2933 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2935 * ntoh* macros are now null definitions for big endian CPUs.
2937 (0.5.0) Changes since version 0.4.2
2941 * Redesigned operating system emulation layer to make porting easier.
2943 * Better control over TCP output buffers.
2945 * Documenation added.
2949 * Locking issues in buffer management.
2951 * Bugfixes in the sequential API.
2953 * IP forwarding could cause memory leakage. This has been fixed.
2957 * Directory structure somewhat changed; the core/ tree has been
2960 (0.4.2) Changes since version 0.4.1
2964 * Experimental ARP implementation added.
2966 * Skeleton Ethernet driver added.
2968 * Experimental BSD socket API library added.
2972 * In very intense situations, memory leakage could occur. This has
2977 * Variables named "data" and "code" have been renamed in order to
2978 avoid name conflicts in certain compilers.
2980 * Variable++ have in appliciable cases been translated to ++variable
2981 since some compilers generate better code in the latter case.
2983 (0.4.1) Changes since version 0.4
2987 * TCP: Connection attempts time out earlier than data
2988 transmissions. Nagle algorithm implemented. Push flag set on the
2989 last segment in a burst.
2991 * UDP: experimental support for UDP-Lite extensions.
2995 * TCP: out of order segments were in some cases handled incorrectly,
2996 and this has now been fixed. Delayed acknowledgements was broken
2997 in 0.4, has now been fixed. Binding to an address that is in use
2998 now results in an error. Reset connections sometimes hung an
2999 application; this has been fixed.
3001 * Checksum calculation sometimes failed for chained pbufs with odd
3002 lengths. This has been fixed.
3004 * API: a lot of bug fixes in the API. The UDP API has been improved
3005 and tested. Error reporting and handling has been
3006 improved. Logical flaws and race conditions for incoming TCP
3007 connections has been found and removed.
3009 * Memory manager: alignment issues. Reallocating memory sometimes
3010 failed, this has been fixed.
3012 * Generic library: bcopy was flawed and has been fixed.
3016 * API: all datatypes has been changed from generic ones such as
3017 ints, to specified ones such as u16_t. Functions that return
3018 errors now have the correct type (err_t).
3020 * General: A lot of code cleaned up and debugging code removed. Many
3021 portability issues have been fixed.
3023 * The license was changed; the advertising clause was removed.
3027 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3028 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3031 (0.4) Changes since version 0.3.1
3033 * Memory management has been radically changed; instead of
3034 allocating memory from a shared heap, memory for objects that are
3035 rapidly allocated and deallocated is now kept in pools. Allocation
3036 and deallocation from those memory pools is very fast. The shared
3037 heap is still present but is used less frequently.
3039 * The memory, memory pool, and packet buffer subsystems now support
3040 4-, 2-, or 1-byte alignment.
3042 * "Out of memory" situations are handled in a more robust way.
3044 * Stack usage has been reduced.
3046 * Easier configuration of lwIP parameters such as memory usage,
3047 TTLs, statistics gathering, etc. All configuration parameters are
3048 now kept in a single header file "lwipopts.h".
3050 * The directory structure has been changed slightly so that all
3051 architecture specific files are kept under the src/arch
3054 * Error propagation has been improved, both in the protocol modules
3057 * The code for the RTXC architecture has been implemented, tested
3060 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3061 the Internet checksum modules.
3063 * Bugs related to porting between a 32-bit and a 16-bit architecture
3064 have been found and corrected.
3066 * The license has been changed slightly to conform more with the
3067 original BSD license, including the advertisement clause.
3069 (0.3.1) Changes since version 0.3
3071 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3072 RAM never returned the RAM when the pbuf was deallocated.
3074 * TCP congestion control, window updates and retransmissions did not
3075 work correctly. This has now been fixed.
3077 * Bugfixes in the API.
3079 (0.3) Changes since version 0.2
3081 * New and improved directory structure. All include files are now
3082 kept in a dedicated include/ directory.
3084 * The API now has proper error handling. A new function,
3085 netconn_err(), now returns an error code for the connection in
3088 * Improvements in the memory management subsystem. The system now
3089 keeps a pointer to the lowest free memory block. A new function,
3090 mem_malloc2() tries to allocate memory once, and if it fails tries
3091 to free some memory and retry the allocation.
3093 * Much testing has been done with limited memory
3094 configurations. lwIP now does a better job when overloaded.
3096 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3098 * Many bugfixes in the TCP code:
3100 - Fixed a bug in tcp_close().
3102 - The TCP receive window was incorrectly closed when out of
3103 sequence segments was received. This has been fixed.
3105 - Connections are now timed-out of the FIN-WAIT-2 state.
3107 - The initial congestion window could in some cases be too
3108 large. This has been fixed.
3110 - The retransmission queue could in some cases be screwed up. This
3113 - TCP RST flag now handled correctly.
3115 - Out of sequence data was in some cases never delivered to the
3116 application. This has been fixed.
3118 - Retransmitted segments now contain the correct acknowledgment
3119 number and advertised window.
3121 - TCP retransmission timeout backoffs are not correctly computed
3122 (ala BSD). After a number of retransmissions, TCP now gives up
3125 * TCP connections now are kept on three lists, one for active
3126 connections, one for listening connections, and one for
3127 connections that are in TIME-WAIT. This greatly speeds up the fast
3128 timeout processing for sending delayed ACKs.
3130 * TCP now provides proper feedback to the application when a
3131 connection has been successfully set up.
3133 * More comments have been added to the code. The code has also been
3134 somewhat cleaned up.
3136 (0.2) Initial public release.