5 * [Enter new changes just after this line - do not remove this line]
9 2011-09-11: Simon Goldschmidt
10 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
11 initial local TCP/UDP ports (so that different port ranges are used after
12 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
14 2011-09-03: Simon Goldschmidt
15 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
17 2011-08-24: Simon Goldschmidt
18 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
20 2011-07-26: Simon Goldschmidt
21 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
22 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
24 2011-07-21: Simon Goldschmidt (patch by hanhui)
25 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
26 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
27 Also added code to allow ip_forward() to forward non-broadcast packets to
28 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
30 2011-07-21: Simon Goldschmidt
31 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
32 ioctl/FIONREAD return the size of the next pending datagram.
34 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
35 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
38 2011-05-25: Simon Goldschmidt
39 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
40 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
41 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
42 code so that the code is more readable.
44 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
45 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
46 Ivan! (this is work in progress: we're just post release anyway :-)
48 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
49 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
55 2011-09-09: Simon Goldschmidt
56 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
59 2011-09-03: Simon Goldschmidt
60 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
61 is aggregated and sent to application
63 2011-09-01: Simon Goldschmidt
64 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
67 2011-09-01: Simon Goldschmidt
68 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
70 2011-08-24: Simon Goldschmidt
71 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
73 2011-08-24: Simon Goldschmidt
74 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
75 accept() on UDP connections
77 2011-08-24: Simon Goldschmidt
78 * sockets.h: fixed bug #34057 socklen_t should be a typedef
80 2011-08-24: Simon Goldschmidt
81 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
83 2011-08-24: Simon Goldschmidt
84 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
86 2011-08-24: Simon Goldschmidt
87 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
89 2011-08-22: Simon Goldschmidt
90 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
91 merely prevents nagle from not transmitting fast after closing.)
93 2011-07-22: Simon Goldschmidt
94 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
95 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
96 lwip_send() sends as much as possible for non-blocking sockets
98 2011-07-22: Simon Goldschmidt
99 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
100 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
101 at regular intervals from main level.
103 2011-07-21: Simon Goldschmidt
104 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
105 sending an ARP request when an ARP entry is used in the last minute before
108 2011-07-04: Simon Goldschmidt
109 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
111 2011-06-26: Simon Goldschmidt
112 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
113 updating its documentation only.
115 2011-06-26: Simon Goldschmidt
116 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
119 2011-06-26: Simon Goldschmidt
120 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
128 2011-03-27: Simon Goldschmidt
129 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
130 calculate it in tcp_zero_window_probe (the only place where it was used).
132 2010-11-21: Simon Goldschmidt
133 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
136 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
137 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
138 IP_MULTICAST_LOOP at socket- and raw-API level.
140 2010-06-16: Simon Goldschmidt
141 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
142 link-layer-addressed UDP traffic to be received while a netif is down (just
143 like DHCP during configuration)
145 2010-05-22: Simon Goldschmidt
146 * many many files: bug #27352: removed packing from ip_addr_t, the packed
147 version is now only used in protocol headers. Added global storage for
148 current src/dest IP address while in input functions.
150 2010-05-16: Simon Goldschmidt
151 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
152 calculation (and use them throughout the stack where applicable)
154 2010-05-16: Simon Goldschmidt
155 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
156 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
158 2010-05-16: Simon Goldschmidt
159 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
160 MEMP pool instead of the heap
162 2010-05-13: Simon Goldschmidt
163 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
164 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
165 packets to more than one pcb.
167 2010-05-02: Simon Goldschmidt
168 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
169 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
171 2010-04-30: Simon Goldschmidt
172 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
173 take a precalculated checksum, added pbuf_fill_chksum() to copy data
174 into a pbuf and at the same time calculating the checksum for that data
176 2010-04-29: Simon Goldschmidt
177 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
178 2-byte-aligned IP addresses and MAC addresses
180 2010-04-28: Patch by Bill Auerbach
181 * ip.c: Inline generating IP checksum to save a function call
183 2010-04-14: Simon Goldschmidt
184 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
185 tcpip_thread processes messages or timeouts to implement a watchdog.
187 2010-03-28: Simon Goldschmidt
188 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
189 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
191 2010-03-27: Simon Goldschmidt
192 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
193 etharp_query to prevent unnecessary function calls (inspired by
196 2010-03-20: Simon Goldschmidt
197 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
198 since the linker cannot do this automatically to save space.
200 2010-03-20: Simon Goldschmidt
201 * opt.h, etharp.c/.h: Added support for static ARP table entries
203 2010-03-14: Simon Goldschmidt
204 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
205 when creating TCP segments, not when (re-)transmitting them.
207 2010-03-07: Simon Goldschmidt
208 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
209 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
210 This should speed up receiving data on sockets as the select code in
211 event_callback is only executed when select is waiting.
213 2010-03-06: Simon Goldschmidt
214 * tcp_out.c: task #7013 (Create option to have all packets delivered to
215 netif->output in one piece): Always copy to try to create single pbufs
218 2010-03-06: Simon Goldschmidt
219 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
220 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
221 for tcp netconns to receive pbufs, not netbufs; use that function
224 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
225 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
226 Work on tcp_enqueue: Don't waste memory when chaining segments,
227 added option TCP_OVERSIZE to prevent creating many small pbufs when
228 calling tcp_write with many small blocks of data. Instead, pbufs are
229 allocated larger than needed and the space is used for later calls to
232 2010-02-21: Simon Goldschmidt
233 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
236 2010-02-21: Simon Goldschmidt
237 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
238 implementation of tcp to make API usage cleare to application programmers
240 2010-02-14: Simon Goldschmidt/Stephane Lesage
241 * ip_addr.h: Improved some defines working on ip addresses, added faster
242 macro to copy addresses that cannot be NULL
244 2010-02-13: Simon Goldschmidt
245 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
246 blocking send operation)
248 2010-02-12: Simon Goldschmidt
249 * sockets.c/.h: Added a minimal version of posix fctl() to have a
250 standardised way to set O_NONBLOCK for nonblocking sockets.
252 2010-02-12: Simon Goldschmidt
253 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
254 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
255 and dhcp work with user-allocated structs instead of callin mem_malloc
257 2010-02-12: Simon Goldschmidt/Jeff Barber
258 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
259 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
261 2010-02-12: Simon Goldschmidt
262 * sys layer: task #10139 (Prefer statically allocated memory): converted
263 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
264 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
265 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
266 to let sys.h use binary semaphores instead of mutexes - as before)
268 2010-02-09: Simon Goldschmidt (Simon Kallweit)
269 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
270 (Restart system timeout handling)
272 2010-02-09: Simon Goldschmidt
273 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
274 netif.c) - loopif does not have to be created by the port any more,
275 just define LWIP_HAVE_LOOPIF to 1.
277 2010-02-08: Simon Goldschmidt
278 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
279 inet_ntoa_r/ipaddr_ntoa_r
281 2010-02-08: Simon Goldschmidt
282 * netif.h: Added netif_s/get_igmp_mac_filter() macros
284 2010-02-05: Simon Goldschmidt
285 * netif.h: Added function-like macros to get/set the hostname on a netif
287 2010-02-04: Simon Goldschmidt
288 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
289 make changing the actual implementation behind the typedef easier.
291 2010-02-01: Simon Goldschmidt
292 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
293 for allocating memory when getaddrinfo() is called.
295 2010-01-31: Simon Goldschmidt
296 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
297 them once instead of parsing for every option. This also removes
298 the need for mem_malloc from dhcp_recv and makes it possible to
299 correctly retrieve the BOOTP file.
301 2010-01-30: simon Goldschmidt
302 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
305 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
306 * api.h, api_msg.c, sockets.c: Added except set support in select
309 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
310 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
311 Add non-blocking support for connect (partly from patch #6860),
312 plus many cleanups in socket & netconn API.
314 2010-01-27: Simon Goldschmidt
315 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
316 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
318 2010-01-26: Simon Goldschmidt
319 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
321 2010-01-14: Simon Goldschmidt
322 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
323 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
325 2010-01-13: Simon Goldschmidt
326 * mem.c: The heap now may be moved to user-defined memory by defining
327 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
328 (patch #6966 and bug #26133)
330 2010-01-10: Simon Goldschmidt (Bill Auerbach)
331 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
334 2010-01-10: Simon Goldschmidt
335 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
336 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
338 2009-12-31: Simon Goldschmidt
339 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
340 added timers.c/.h: Separated timer implementation from semaphore/mbox
341 implementation, moved timer implementation to timers.c/.h, timers are
342 now only called from tcpip_thread or by explicitly checking them.
345 2009-12-27: Simon Goldschmidt
346 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
347 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
352 2011-04-20: Simon Goldschmidt
353 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
355 2011-04-13: Simon Goldschmidt
356 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
357 using ports in the IANA private/dynamic range (49152 through 65535).
359 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
360 * etharp.h/.c: Fixed broken VLAN support.
362 2011-03-27: Simon Goldschmidt
363 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
364 pcbs) by checking if the pcb was bound (local_port != 0).
366 2011-03-27: Simon Goldschmidt
367 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
369 2011-03-27: Simon Goldschmidt
370 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
371 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
373 2011-03-27: Simon Goldschmidt
374 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
375 is present never times out) by starting retransmission timer before checking
378 2011-03-22: Simon Goldschmidt
379 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
380 calling sio_read_abort() if the file descriptor is valid.
382 2011-03-14: Simon Goldschmidt
383 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
384 more than once can render a socket useless) since it mainly involves changing
385 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
387 2011-03-13: Simon Goldschmidt
388 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
389 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
390 use EALRADY instead of -1
392 2011-03-13: Simon Goldschmidt
393 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
394 connection has been aborted by err_tcp (since this is not a normal closing
397 2011-03-13: Simon Goldschmidt
398 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
399 with pcb->state != CLOSED
401 2011-02-17: Simon Goldschmidt
402 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
405 2011-02-17: Simon Goldschmidt
406 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
408 2011-01-24: Simon Goldschmidt
409 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
411 2010-12-02: Simon Goldschmidt
412 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
414 2010-11-23: Simon Goldschmidt
415 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
416 LWIP_SO_RCVBUF and ioctl/FIONREAD.
418 2010-11-23: Simon Goldschmidt
419 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
420 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
422 2010-11-23: Simon Goldschmidt
423 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
424 refusing 'refused_data' again.
426 2010-11-22: Simon Goldschmidt
427 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
428 after a successful nonblocking connection.
430 2010-11-22: Simon Goldschmidt
431 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
432 must be sent link-local
434 2010-11-22: Simon Goldschmidt
435 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
438 2010-11-20: Simon Goldschmidt
439 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
441 2010-11-20: Simon Goldschmidt
442 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
443 resemble other stacks.
445 2010-11-20: Simon Goldschmidt
446 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
447 no-copy TCP writes will never succeed.
449 2010-11-20: Simon Goldschmidt
450 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
451 not match documentation: return ERR_ARG instead of ERR_VAL if not
452 initialized or wrong argument.
454 2010-10-20: Simon Goldschmidt
455 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
457 2010-10-05: Simon Goldschmidt
458 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
459 replugging the network cable after an AutoIP address was assigned.
461 2010-08-10: Simon Goldschmidt
462 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
464 2010-08-03: Simon Goldschmidt
465 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
467 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
468 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
469 endian architectures)
471 2010-07-28: Simon Goldschmidt
472 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
475 2010-07-27: Simon Goldschmidt
476 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
477 harm but never did anything
479 2010-07-21: Simon Goldschmidt
480 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
483 2010-07-16: Kieran Mansley
484 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
486 2010-07-10: Simon Goldschmidt
487 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
489 2010-06-30: Simon Goldschmidt
490 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
493 2010-06-28: Kieran Mansley
494 * timers.c remove unportable printing of C function pointers
496 2010-06-24: Simon Goldschmidt
497 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
498 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
500 2010-06-24: Simon Goldschmidt
501 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
502 implemented shutdown at socket level.
504 2010-06-21: Simon Goldschmidt
505 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
506 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
507 custom pbufs that reference other (original) pbufs. Additionally set
508 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
510 2010-06-15: Simon Goldschmidt
511 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
513 2010-06-14: Simon Goldschmidt
514 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
516 2010-06-12: Simon Goldschmidt
517 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
520 2010-05-17: Simon Goldschmidt
521 * netdb.c: Correctly NULL-terminate h_addr_list
523 2010-05-16: Simon Goldschmidt
524 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
525 "symbol already defined" i.e. when linking to winsock
527 2010-05-05: Simon Goldschmidt
528 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
531 2010-04-21: Simon Goldschmidt
532 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
535 2010-03-28: Luca Ceresoli
536 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
538 2010-03-27: Luca Ceresoli
539 * mib2.c: patch #7130: remove meaningless const qualifiers
541 2010-03-26: Simon Goldschmidt
542 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
544 2010-03-26: Simon Goldschmidt
545 * various files: Fixed compiling with different options disabled (TCP/UDP),
546 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
548 2010-03-25: Simon Goldschmidt
549 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
551 2010-03-25: Simon Goldschmidt
552 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
553 overrunning our rcv_wnd in ooseq case.
555 2010-03-22: Simon Goldschmidt
556 * tcp.c: tcp_listen() did not copy the pcb's prio.
558 2010-03-19: Simon Goldschmidt
559 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
561 2010-03-14: Simon Goldschmidt
562 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
563 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
564 and basing PBUF_LINK_HLEN on it.
566 2010-03-08: Simon Goldschmidt
567 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
568 when assiging routable address): when checking incoming packets and
569 aborting existing connection on address change, filter out link-local
572 2010-03-06: Simon Goldschmidt
573 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
575 2010-03-06: Simon Goldschmidt
576 * ipv4/ip.c: Don't try to forward link-local addresses
578 2010-03-06: Simon Goldschmidt
579 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
582 2010-03-05: Simon Goldschmidt
583 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
586 2010-03-05: Simon Goldschmidt
587 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
588 into multiple calls to tcp_write.
590 2010-02-21: Simon Goldschmidt
591 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
592 the implementation of DNS_USES_STATIC_BUF==1)
594 2010-02-20: Simon Goldschmidt
595 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
596 close() vs. shutdown(). Now the application does not get any more
597 recv callbacks after calling tcp_close(). Added tcp_shutdown().
599 2010-02-19: Simon Goldschmidt
600 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
601 confusion with realloc()
603 2010-02-15: Simon Goldschmidt/Stephane Lesage
604 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
607 2010-02-14: Simon Goldschmidt
608 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
609 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
610 admin-status of a netif are up
612 2010-02-14: Simon Goldschmidt
613 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
614 reception and is not really necessary
616 2010-02-14: Simon Goldschmidt
617 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
618 request was directed as us (RFC 826, Packet Reception), otherwise
619 only update existing entries; internalized some functions
621 2010-02-14: Simon Goldschmidt
622 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
623 disabled on netif used for PPPoE) by adding a new netif flag
624 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
625 device but prevents usage of ARP (so that ethernet_input can be used
628 2010-02-12: Simon Goldschmidt
629 * netif.c: netif_set_link_up/down: only do something if the link state
632 2010-02-12: Simon Goldschmidt/Stephane Lesage
633 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
636 2010-02-12: Simon Goldschmidt
637 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
639 2010-02-09: Simon Goldschmidt
640 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
641 (recv() makes receive window update for data that wasn't received by
644 2010-02-09: Simon Goldschmidt/Stephane Lesage
645 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
646 or any netconn_recv() error)
648 2010-02-09: Simon Goldschmidt
649 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
651 2010-02-09: Simon Goldschmidt
652 * netif.c: For loopback packets, adjust the stats- and snmp-counters
653 for the loopback netif.
655 2010-02-08: Simon Goldschmidt
656 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
657 since they are not used anywhere else.
659 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
660 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
661 (patch from bug #28798)
663 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
664 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
665 another bug when LWIP_RAND() returns zero.
667 2010-02-04: Simon Goldschmidt
668 * nearly every file: Use macros defined in ip_addr.h (some of them new)
669 to work with IP addresses (preparation for bug #27352 - Change ip_addr
670 from struct to typedef (u32_t) - and better code).
672 2010-01-31: Simon Goldschmidt
673 * netif.c: Don't call the link-callback from netif_set_up/down() since
674 this invalidly retriggers DHCP.
676 2010-01-29: Simon Goldschmidt
677 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
678 portability file inet.h and its contents from the stack: moved htonX-
679 functions to def.h (and the new def.c - they are not ipv4 dependent),
680 let inet.h depend on ip_addr.h and not the other way round.
681 This fixes bug #28732.
683 2010-01-28: Kieran Mansley
684 * tcp.c: Ensure ssthresh >= 2*MSS
686 2010-01-27: Simon Goldschmidt
687 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
688 callback can lead to accessing unallocated memory. As a consequence,
689 ERR_ABRT means the application has called tcp_abort()!
691 2010-01-25: Simon Goldschmidt
692 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
693 not implemented in SNMP): write-only or not-accessible are still
694 returned by getnext (though not by get)
696 2010-01-24: Simon Goldschmidt
697 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
698 not use reserved C/C++ keywords
700 2010-01-23: Simon Goldschmidt
701 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
704 2010-01-21: Simon Goldschmidt
705 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
706 if tcp_enqueue fails) both in raw- and netconn-API
708 2010-01-19: Simon Goldschmidt
709 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
711 2010-01-18: Iordan Neshev/Simon Goldschmidt
712 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
713 bugfix backports from 2.4.x.
715 2010-01-18: Simon Goldschmidt
716 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
718 2010-01-17: Simon Goldschmidt
719 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
720 task #10102: "netconn: clean up conn->err threading issues" by adding
721 error return value to struct api_msg_msg
723 2010-01-17: Simon Goldschmidt
724 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
725 to return err_t (bugs #27709 and #28087)
727 2010-01-14: Simon Goldschmidt
728 * ...: Use typedef for function prototypes throughout the stack.
730 2010-01-13: Simon Goldschmidt
731 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
732 window = 0) by correctly draining recvmbox/acceptmbox
734 2010-01-11: Simon Goldschmidt
735 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
736 erroneous callbacks) by copying the code from recent pppd
738 2010-01-10: Simon Goldschmidt
739 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
741 2010-01-10: Simon Goldschmidt
742 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
744 2010-01-08: Simon Goldschmidt
745 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
747 2010-01-08: Simon Goldschmidt
748 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
749 passed to dns_local_addhost() might be volatile
751 2010-01-07: Simon Goldschmidt
752 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
754 2010-01-06: Simon Goldschmidt
755 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
757 2009-12-31: Simon Goldschmidt
758 * many ppp files: Reorganised PPP source code from ucip structure to pppd
759 structure to easily compare our code against the pppd code (around v2.3.1)
761 2009-12-27: Simon Goldschmidt
762 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
770 2009-10-27 Simon Goldschmidt/Stephan Lesage
771 * netifapi.c/.h: Added netifapi_netif_set_addr()
773 2009-10-07 Simon Goldschmidt/Fabian Koch
774 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
775 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
777 2009-08-26 Simon Goldschmidt/Simon Kallweit
778 * slipif.c/.h: bug #26397: SLIP polling support
780 2009-08-25 Simon Goldschmidt
781 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
782 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
784 2009-08-25 Simon Goldschmidt
785 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
787 2009-08-24 Jakob Stoklund Olesen
788 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
789 to netif_set_link_up().
791 2009-08-23 Simon Goldschmidt
792 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
793 to a human-readable string.
797 2009-12-24: Kieran Mansley
798 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
801 2009-12-06: Simon Goldschmidt
802 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
803 be statically allocated (like in ucip)
805 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
806 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
808 2009-12-03: Simon Goldschmidt
809 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
810 could have non-zero length
812 2009-12-02: Simon Goldschmidt
813 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
814 tcp_input_pcb until after calling the pcb's callbacks
816 2009-11-29: Simon Goldschmidt
817 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
818 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
820 2009-11-29: Simon Goldschmidt
821 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
822 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
824 2009-11-26: Simon Goldschmidt
825 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
828 2009-11-26: Simon Goldschmidt
829 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
830 algorithm at PCB level
832 2009-11-22: Simon Goldschmidt
833 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
835 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
836 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
837 reusing time-wait pcb
839 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
840 * sockets.c: Fixed bug #28062: Data received directly after accepting
841 does not wake up select
843 2009-11-11: Simon Goldschmidt
844 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
846 2009-10-30: Simon Goldschmidt
847 * opt.h: Increased default value for TCP_MSS to 536, updated default
848 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
850 2009-10-28: Kieran Mansley
851 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
852 to follow algorithm from TCP/IP Illustrated
854 2009-10-27: Kieran Mansley
855 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
857 2009-10-25: Simon Goldschmidt
858 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
859 pcb->recv is NULL to keep rcv_wnd correct)
861 2009-10-25: Simon Goldschmidt
862 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
864 2009-10-23: Simon Goldschmidt (David Empson)
865 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
867 2009-10-21: Simon Goldschmidt
868 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
869 trailing 1 byte len (SYN/FIN)
871 2009-10-21: Simon Goldschmidt
872 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
874 2009-10-19: Simon Goldschmidt
875 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
876 conditional code to assert where applicable), check pbuf length before
877 testing for valid reply
879 2009-10-19: Simon Goldschmidt
880 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
881 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
883 2009-10-16: Simon Goldschmidt
884 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
885 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
888 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
889 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
891 2009-10-15: Simon Goldschmidt
892 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
895 2009-10-15: Simon Goldschmidt
896 * autoip.c: Fixed bug #27704: autoip starts with wrong address
897 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
898 of network byte order
900 2009-10-11 Simon Goldschmidt (Jörg Kesten)
901 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
902 which are not consecutive when retransmitting unacked segments
904 2009-10-09 Simon Goldschmidt
905 * opt.h: Fixed default values of some stats to only be enabled if used
906 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
908 2009-08-30 Simon Goldschmidt
909 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
910 function" by checking for loopback before calling ip_frag
912 2009-08-25 Simon Goldschmidt
913 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
915 2009-08-23 Simon Goldschmidt
916 * ppp.c: bug #27078: Possible memory leak in pppInit()
918 2009-08-23 Simon Goldschmidt
919 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
922 2009-08-23 Simon Goldschmidt
923 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
924 Fixed wrong parenthesis, added check in init.c
926 2009-08-23 Simon Goldschmidt
927 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
929 2009-08-23 Simon Goldschmidt
930 * many ppp files: bug #27267: Added include to string.h where needed
932 2009-08-23 Simon Goldschmidt
933 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
940 2009-05-10 Simon Goldschmidt
941 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
942 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
943 one pbuf to help MACs that don't support scatter-gather DMA.
945 2009-05-09 Simon Goldschmidt
946 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
947 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
949 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
950 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
951 extended info about the currently received packet.
953 2009-04-27 Simon Goldschmidt
954 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
956 2009-04-25 Simon Goldschmidt
957 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
958 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
960 2009-04-21 Simon Goldschmidt
961 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
962 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
963 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
964 as an external function for lookup.
966 2009-04-15 Simon Goldschmidt
967 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
969 2009-03-31 Kieran Mansley
970 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
971 TCP timestamp options, off by default. Rework tcp_enqueue() to
972 take option flags rather than specified option data
974 2009-02-18 Simon Goldschmidt
975 * cc.h: Added printf formatter for size_t: SZT_F
977 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
978 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
981 2009-02-12 Simon Goldschmidt
982 * init.h: Added LWIP_VERSION to get the current version of the stack
984 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
985 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
986 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
989 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
990 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
991 is only used by UDPLITE at present, so conditionalise it.
993 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
994 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
995 "seed" address. This should reduce AUTOIP conflicts if
996 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
998 2008-10-02 Jonathan Larmour and Rishi Khan
999 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1002 2008-06-30 Simon Goldschmidt
1003 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1004 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1005 mem_free to run between mem_malloc iterations. Added illegal counter for
1008 2008-06-27 Simon Goldschmidt
1009 * stats.h/.c, some other files: patch #6483: stats module improvement:
1010 Added defines to display each module's statistic individually, added stats
1011 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1013 2008-06-17 Simon Goldschmidt
1014 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1015 (define LWIP_ERR_T in cc.h)
1017 2008-06-17 Simon Goldschmidt
1018 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1021 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1022 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1023 modified version of patch # 6370: Moved loopif code to netif.c so that
1024 loopback traffic is supported on all netifs (all local IPs).
1025 Added option to limit loopback packets for each netifs.
1029 2009-08-12 Kieran Mansley
1030 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1031 out of window or out of order properly
1033 2009-08-12 Kieran Mansley
1034 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1036 2009-07-28 Simon Goldschmidt
1037 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1039 2009-07-27 Kieran Mansley
1040 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1042 2009-07-09 Kieran Mansley
1043 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1044 recv_avail and don't increment counters until message successfully
1047 2009-06-25 Kieran Mansley
1048 * api_msg.c api.h: BUG26722: initialise netconn write variables
1051 2009-06-25 Kieran Mansley
1052 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1054 2009-06-25 Kieran Mansley
1055 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1056 simultaneous close behaviour, and make snd_nxt have the same meaning
1059 2009-05-12 Simon Goldschmidt
1060 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1061 arp_table / uses etharp_query" by adding etharp_gratuitous()
1063 2009-05-12 Simon Goldschmidt
1064 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1065 to the IP header (used by igmp_ip_output_if)
1067 2009-05-06 Simon Goldschmidt
1068 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1069 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1071 2009-05-05 Simon Goldschmidt
1072 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1075 2009-05-04 Simon Goldschmidt
1076 * init.c: snmp was not initialized in lwip_init()
1078 2009-05-04 Frédéric Bernon
1079 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1081 2009-05-03 Simon Goldschmidt
1082 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1083 (and unsent->next == NULL)
1085 2009-05-02 Simon Goldschmidt
1086 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1087 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1089 2009-05-02 Simon Goldschmidt
1090 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1092 2009-05-01 Simon Goldschmidt
1093 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1095 2009-05-01 Simon Goldschmidt
1096 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1098 2009-04-29 Frédéric Bernon
1099 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1100 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1101 of broadcast packets even when this option wasn't set. Port maintainers
1102 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1103 If you want this option also filter broadcast on recv operations, you also
1104 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1106 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1107 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1108 DHCP/AUTOIP cooperation
1110 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1111 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1112 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1113 right place in tcp_output and tcp_rexmit).
1115 2009-04-25 Simon Goldschmidt
1116 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1117 when debugging": memp_sizes contained the wrong sizes (including sanity
1118 regions); memp pools for MEM_USE_POOLS were too small
1120 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1121 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1122 behavior, with with ip address string not ended by a '\0', a space or a
1125 2009-04-19 Simon Goldschmidt
1126 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1127 pcb->err is called, not pcb->connected (with an error code).
1129 2009-04-19 Simon Goldschmidt
1130 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1131 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1133 2009-04-19 Simon Goldschmidt
1134 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1135 in the header pbuf, not the data pbuf)
1137 2009-04-18 Simon Goldschmidt
1138 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1140 2009-04-15 Simon Goldschmidt
1141 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1143 2009-04-15 Simon Goldschmidt
1144 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1146 2009-04-15 Simon Goldschmidt
1147 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1148 ip_hinted_output() (for smaller code mainly)
1150 2009-04-15 Simon Goldschmidt
1151 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1153 2009-04-15 Simon Goldschmidt
1154 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1155 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1156 is big enough in dhcp_start
1158 2009-04-15 Simon Goldschmidt
1159 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1161 2009-04-15 Simon Goldschmidt
1162 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1164 2009-04-15 Simon Goldschmidt
1165 * sockets.c: bug #26121: set_errno can be overridden
1167 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1168 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1171 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1172 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1175 2009-03-31 Kieran Mansley
1176 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1177 updates are calculated and sent (BUG20515)
1179 * tcp_in.c: cope with SYN packets received during established states,
1180 and retransmission of initial SYN.
1182 * tcp_out.c: set push bit correctly when tcp segments are merged
1184 2009-03-27 Kieran Mansley
1185 * tcp_out.c set window correctly on probes (correcting change made
1188 2009-03-26 Kieran Mansley
1189 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1190 connections where no reset required (bug #25622)
1192 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1195 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1196 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1197 too small depending on MEM_ALIGNMENT
1199 2009-02-16 Simon Goldschmidt
1200 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1201 converted size argument of netconn_write to 'size_t'
1203 2009-02-16 Simon Goldschmidt
1204 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1205 by moving accept callback function pointer to TCP_PCB_COMMON
1207 2009-02-12 Simon Goldschmidt
1208 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1211 2009-02-11 Simon Goldschmidt
1212 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1214 2009-02-11 Simon Goldschmidt
1215 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1216 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1218 2009-02-10 Simon Goldschmidt
1219 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1220 Accepts_pending is decrease on a corresponding listen pcb when a connection
1221 in state SYN_RCVD is close.
1223 2009-01-28 Jonathan Larmour
1224 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1227 2008-12-19 Simon Goldschmidt
1228 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1230 2008-12-10 Tamas Somogyi, Frédéric Bernon
1231 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1232 port uses deleted netbuf.
1234 2008-10-18 Simon Goldschmidt
1235 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1238 2008-10-15 Simon Goldschmidt
1239 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1240 by packing the struct ip_reass_helper.
1242 2008-10-03 David Woodhouse, Jonathan Larmour
1243 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1245 2008-10-02 Jonathan Larmour
1246 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1247 padding is included.
1249 2008-09-30 Jonathan Larmour
1250 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1251 assertion check that addrlen isn't NULL.
1253 2008-09-30 Jonathan Larmour
1254 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1256 2008-08-26 Simon Goldschmidt
1257 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1258 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1260 2008-08-14 Simon Goldschmidt
1261 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1262 tcp_close returns != ERR_OK)
1264 2008-07-08 Frédéric Bernon
1265 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1266 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1268 2008-06-24 Jonathan Larmour
1269 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1270 if tcp_seg_copy fails.
1272 2008-06-17 Simon Goldschmidt
1273 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1274 and created defines for swapping bytes and folding u32 to u16.
1276 2008-05-30 Kieran Mansley
1277 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1278 rather than rcv_ann_wnd when deciding if packets are in-window.
1279 Contributed by <arasmussen@consultant.datasys.swri.edu>
1281 2008-05-30 Kieran Mansley
1282 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1283 passing as function pointers when MEM_LIBC_MALLOC is defined.
1285 2008-05-09 Jonathan Larmour
1286 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1287 stop it being treated as a fatal error.
1289 2008-04-15 Simon Goldschmidt
1290 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1293 2008-03-27 Simon Goldschmidt
1294 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1295 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1296 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1297 or heap memory from interrupt context
1299 2008-03-26 Simon Goldschmidt
1300 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1301 host sent a zero mss as TCP option.
1308 2008-03-10 Jonathan Larmour
1309 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1310 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1312 2008-01-22 Frédéric Bernon
1313 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1314 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1316 2008-01-14 Frédéric Bernon
1317 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1318 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1319 tcp_recv callback (see rawapi.txt).
1321 2008-01-14 Frédéric Bernon, Marc Chaland
1322 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1324 2008-01-12 Frédéric Bernon
1325 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1326 netconn::sem per netconn::op_completed like suggested for the task #7490
1327 "Add return value to sys_mbox_post".
1329 2008-01-12 Frédéric Bernon
1330 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1331 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1332 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1334 2008-01-10 Frédéric Bernon
1335 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1336 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1337 "blocking" ("block" parameter = 1).
1339 2008-01-10 Frédéric Bernon
1340 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1341 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1342 "Add return value to sys_mbox_post".
1344 2008-01-05 Frédéric Bernon
1345 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1346 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1347 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1348 indicate the number of pointers query by the mailbox. There is three defines
1349 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1350 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1351 parameter in your implementation, but to ignore it to keep the previous behavior.
1352 The new sys_mbox_trypost function return a value to know if the mailbox is
1353 full or if the message is posted. Take a look to sys_arch.txt for more details.
1354 This new function is used in tcpip_input (so, can be called in an interrupt
1355 context since the function is not blocking), and in recv_udp and recv_raw.
1357 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1358 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1359 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1360 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1361 documentation in the rawapi.txt file.
1363 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1364 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1366 2007-12-31 Frédéric Bernon, Luca Ceresoli
1367 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1368 in autoip". The change in etharp_raw could be removed, since all calls to
1369 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1370 wrong in the future.
1372 2007-12-30 Frédéric Bernon, Tom Evans
1373 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1374 Filtering" reported by Tom Evans.
1376 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1377 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1378 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1379 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1380 keep accepting new connections.
1382 2007-12-13 Frédéric Bernon
1383 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1384 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1386 2007-12-12 Frédéric Bernon
1387 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1388 are the one which have ram usage.
1390 2007-12-05 Frédéric Bernon
1391 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1392 set of variables (=0) or a local one (=1). In this last case, your port should
1393 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1394 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1396 2007-12-03 Simon Goldschmidt
1397 * ip.c: ip_input: check if a packet is for inp first before checking all other
1398 netifs on netif_list (speeds up packet receiving in most cases)
1400 2007-11-30 Simon Goldschmidt
1401 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1402 UDP: move a (connected) pcb selected for input to the front of the list of
1403 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1406 2007-11-28 Simon Goldschmidt
1407 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1409 2007-11-25 Simon Goldschmidt
1410 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1413 2007-11-24 Simon Goldschmidt
1414 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1415 to the new file netdb.c; included lwip_getaddrinfo.
1417 2007-11-21 Simon Goldschmidt
1418 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1419 based on the MTU of the netif used to send. Enabled by default. Disable by
1420 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1422 2007-11-19 Frédéric Bernon
1423 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1424 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1425 copy dns payload to parse the response), return an error if there is no place
1426 for a new query, and fix some minor problems.
1428 2007-11-16 Simon Goldschmidt
1429 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1430 removed files: core/inet.c, core/inet6.c
1431 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1432 inet and chksum part; changed includes in all lwIP files as appropriate
1434 2007-11-16 Simon Goldschmidt
1435 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1436 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1437 (gethostbyname/gethostbyname_r).
1439 2007-11-15 Jim Pettinato, Frédéric Bernon
1440 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1441 requests with RAW api interface. Initialization is done in lwip_init() with
1442 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1443 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1444 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1445 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1446 list with points to improve.
1448 2007-11-06 Simon Goldschmidt
1449 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1450 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1451 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1453 2007-11-06 Simon Goldschmidt
1454 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1455 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1456 implementation from netconn api applications.
1458 2007-11-03 Frédéric Bernon
1459 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1460 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1461 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1462 it. This is a first release which have to be improve for TCP. Note it used the
1463 netconn::recv_avail which need to be more "thread-safe" (note there is already
1464 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1466 2007-11-01 Frédéric Bernon, Marc Chaland
1467 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1468 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1469 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1470 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1471 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1473 2007-10-24 Frédéric Bernon
1474 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1475 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1476 some code (like we have talk in "patch #5919 : Create compile switch to remove
1477 select code"), but it could be done later.
1479 2007-10-08 Simon Goldschmidt
1480 * many files: Changed initialization: many init functions are not needed any
1481 more since we now rely on the compiler initializing global and static
1484 2007-10-06 Simon Goldschmidt
1485 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1486 to enqueue the received pbufs so that multiple packets can be reassembled
1487 simultaneously and no static reassembly buffer is needed.
1489 2007-10-05 Simon Goldschmidt
1490 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1491 all netifs (or ports) can use it.
1493 2007-10-05 Frédéric Bernon
1494 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1495 common function to reduce a little bit the footprint (for all functions using
1496 only the "netif" parameter).
1498 2007-10-03 Frédéric Bernon
1499 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1500 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1501 a little bit the footprint (for all functions using only the "netif" parameter).
1503 2007-09-15 Frédéric Bernon
1504 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1505 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1506 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1507 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1509 2007-09-10 Frédéric Bernon
1510 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1511 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1512 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1513 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1514 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1515 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1516 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1517 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1518 when it's queried (any direct call to "sysuptime" is changed by a call to
1519 snmp_get_sysuptime).
1521 2007-09-09 Frédéric Bernon, Bill Florac
1522 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1523 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1524 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1525 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1526 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1527 the next query message to receive the matching multicast streams).
1529 2007-09-08 Frédéric Bernon
1530 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1531 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1532 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1533 Enable to access to these fields with LWIP_TCP=0.
1535 2007-09-05 Frédéric Bernon
1536 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1537 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1538 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1539 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1540 help to reduce footprint, and to reduce "visibility" on the Internet.
1542 2007-09-05 Frédéric Bernon, Bill Florac
1543 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1544 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1545 parameters have to be provided: a task name, and a task stack size. For this
1546 one, since it's platform dependant, you could define the best one for you in
1547 your lwipopts.h. For port maintainers, you can just add these new parameters
1548 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1551 2007-09-05 Frédéric Bernon
1552 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1553 inside init.c for task #7142 "Sanity check user-configurable values".
1555 2007-09-04 Frédéric Bernon, Bill Florac
1556 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1557 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1558 value). It will avoid potential fragmentation problems, use a counter to know
1559 how many times a group is used on an netif, and free it when all applications
1560 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1561 check if LWIP_IGMP!=0).
1563 2007-09-03 Frédéric Bernon
1564 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1565 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1566 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1567 and/or the "interface" field (for netconn layer), for join/leave operations.
1568 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1569 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1571 2007-08-30 Frédéric Bernon
1572 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1573 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1574 with other API (application based on raw API, or future "socket2" API). Ports
1575 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1577 2007-08-30 Frédéric Bernon, Jonathan Larmour
1578 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1579 user-configurable values".
1581 2007-08-29 Frédéric Bernon
1582 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1583 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1584 spirit than the others modules. Modify some IGMP debug traces.
1586 2007-08-29 Frédéric Bernon
1587 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1588 Add lwip_init function to regroup all modules initializations, and to provide
1589 a place to add code for task #7142 "Sanity check user-configurable values".
1590 Ports maintainers should remove direct initializations calls from their code,
1591 and add init.c in their makefiles. Note that lwip_init() function is called
1592 inside tcpip_init, but can also be used by raw api users since all calls are
1593 disabled when matching options are disabled. Also note that their is new options
1594 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1596 2007-08-26 Marc Boucher
1597 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1598 since they can under certain circumstances be called with an invalid conn
1599 pointer after the connection has been closed (and conn has been freed).
1601 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1602 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1603 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1605 2007-08-22 Frédéric Bernon
1606 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1607 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1609 2007-08-22 Frédéric Bernon
1610 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1611 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1612 name is tcpip_input (we keep the name of 1.2.0 function).
1614 2007-08-17 Jared Grubb
1615 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1616 settings into new memp_std.h and optional user file lwippools.h. This adds
1617 more dynamic mempools, and allows the user to create an arbitrary number of
1618 mempools for mem_malloc.
1620 2007-08-16 Marc Boucher
1621 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1622 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1623 close the connection.
1625 2007-08-16 Marc Boucher
1626 * sockets.c: lwip_accept(): check netconn_peer() error return.
1628 2007-08-16 Marc Boucher
1629 * mem.c, mem.h: Added mem_calloc().
1631 2007-08-16 Marc Boucher
1632 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1633 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1634 and starving other message types.
1635 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1637 2007-08-16 Marc Boucher
1638 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1639 type and flgs (later renamed to flags).
1640 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1641 Improved lwip_recvfrom(). TCP push now propagated.
1643 2007-08-16 Marc Boucher
1644 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1647 2007-08-16 Marc Boucher
1648 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1649 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1650 Added PPPoE support and various PPP improvements.
1652 2007-07-25 Simon Goldschmidt
1653 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1654 making netbuf_copy_partial use this function.
1656 2007-07-25 Simon Goldschmidt
1657 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1658 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1661 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1662 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1663 a link callback in the netif struct, and functions to handle it. Be carefull
1664 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1665 if you want to be sure to be compatible with future changes...
1667 2007-06-30 Frédéric Bernon
1668 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1670 2007-06-21 Simon Goldschmidt
1671 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1672 LWIP_AUTOIP =0 and =1 to remove redundant code.
1674 2007-06-21 Simon Goldschmidt
1675 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1676 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1677 heap. This both prevents memory fragmentation and gives a higher speed
1678 at the cost of more memory consumption. Turned off by default.
1680 2007-06-21 Simon Goldschmidt
1681 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1682 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1683 int to be able to send a bigger buffer than 64K with one time (mainly
1684 used from lwip_send).
1686 2007-06-21 Simon Goldschmidt
1687 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1688 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1690 2007-06-21 Simon Goldschmidt
1691 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1692 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1693 changes on low memory or empty send-buffer.
1695 2007-06-18 Simon Goldschmidt
1696 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1697 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1698 used for ethernet and struct eth_addr already had a defined length of 6).
1700 2007-06-17 Simon Goldschmidt
1701 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1702 to disable UDP checksum generation on transmit.
1704 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1705 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1706 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1707 this macro to check "conn" parameter in api_msg.c functions.
1709 2007-06-11 Simon Goldschmidt
1710 * sockets.c, sockets.h: Added UDP lite support for sockets
1712 2007-06-10 Simon Goldschmidt
1713 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1714 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1717 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1718 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1719 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1720 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1721 (see TODO mark in the source code).
1723 2007-06-09 Simon Goldschmidt
1724 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1725 etharp_output() to match netif->output so etharp_output() can be used
1726 directly as netif->output to save one function call.
1728 2007-06-08 Simon Goldschmidt
1729 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1730 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1731 added initialization of those to ethernetif, slipif and loopif.
1733 2007-05-18 Simon Goldschmidt
1734 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1735 (defaulting to off for now) that can be set to 0 to send fragmented
1736 packets by passing PBUF_REFs down the stack.
1738 2007-05-23 Frédéric Bernon
1739 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1740 connections, such present in patch #5959.
1742 2007-05-23 Frédéric Bernon
1743 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1744 code in only one part...
1746 2007-05-18 Simon Goldschmidt
1747 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1748 elements to overflow. This is achieved by adding some bytes before and after
1749 each pool element (increasing their size, of course), filling them with a
1750 prominent value and checking them on freeing the element.
1751 Set it to 2 to also check every element in every pool each time memp_malloc()
1752 or memp_free() is called (slower but more helpful).
1754 2007-05-10 Simon Goldschmidt
1755 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1756 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1759 2007-05-11 Frédéric Bernon
1760 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1761 Include a function pointer instead of a table index in the message to reduce
1762 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1763 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1765 2007-05-10 Simon Goldschmidt
1766 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1767 \ extern "C" {' in all header files. Now you can write your application using
1768 the lwIP stack in C++ and simply #include the core files. Note I have left
1769 out the netif/ppp/*h header files for now, since I don't know which files are
1770 included by applications and which are for internal use only.
1772 2007-05-09 Simon Goldschmidt
1773 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1774 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1775 situations where some compilers might inline the copy and save a function
1776 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1778 2007-05-08 Simon Goldschmidt
1779 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1780 to be overriden in case the C-library malloc implementation is not protected
1781 against concurrent access.
1783 2007-05-04 Simon Goldschmidt (Atte Kojo)
1784 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1785 multiple packets to the same host.
1787 2007-05-04 Frédéric Bernon, Jonathan Larmour
1788 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1789 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1790 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1791 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1792 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1793 these fields are now renamed "addr" & "port".
1795 2007-04-11 Jonathan Larmour
1796 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1797 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1798 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1799 by the port in sys_arch.h if desired.
1801 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1802 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1803 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1804 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1806 2007-04-05 Frédéric Bernon
1807 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1809 2007-04-04 Simon Goldschmidt
1810 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1811 use this for and architecture-independent form to tell the compiler you intentionally
1812 are not using this variable. Can be overriden in cc.h.
1814 2007-03-28 Frédéric Bernon
1815 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1816 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1817 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1818 It will be used by DHCP to register a client hostname, but can also be use when you call
1821 2007-03-28 Frédéric Bernon
1822 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1823 initialize a network interface's flag with. It tell this interface is an ethernet
1824 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1825 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1827 2007-03-26 Frédéric Bernon, Jonathan Larmour
1828 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1829 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1830 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1831 is done in tcpip_init function.
1833 2007-03-22 Frédéric Bernon
1834 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1835 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1836 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1837 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1838 but never used. Fix msg_in.c with the correct #if test for a stat display.
1840 2007-03-21 Kieran Mansley
1841 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1842 Provides callback on netif up/down state change.
1844 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1845 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1846 ip.c, netif.h, tcpip.c, opt.h:
1847 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1848 filter per all network interfaces. Declare a new function in netif to enable to
1849 control the MAC filter (to reduce lwIP traffic processing).
1851 2007-03-11 Frédéric Bernon
1852 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1853 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1854 unless you know what you're doing (default are RFC1122 compliant). Note
1855 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1857 2007-03-08 Frédéric Bernon
1858 * tcp.h: Keepalive values can be configured at compile time, but don't change
1859 this unless you know what you're doing (default are RFC1122 compliant).
1861 2007-03-08 Frédéric Bernon
1862 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1863 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1864 on UDP sockets/netconn.
1866 2007-03-08 Simon Goldschmidt
1867 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1869 2007-03-06 Frédéric Bernon
1870 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1871 Implement SO_RCVTIMEO on UDP sockets/netconn.
1873 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1874 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1875 on the stack and remove the API msg type from memp
1877 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1878 * sockets.h, sockets.c: Move socket initialization to new
1879 lwip_socket_init() function.
1880 NOTE: this changes the API with ports. Ports will have to be
1881 updated to call lwip_socket_init() now.
1883 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1884 * api_lib.c: Use memcpy in netbuf_copy_partial.
1889 2008-03-17 Frédéric Bernon, Ed Kerekes
1890 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1891 some problems to fill the IP header on some targets, use now the
1892 ip.h macros to do it).
1894 2008-03-13 Frédéric Bernon
1895 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1896 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1897 TCP connection caused a crash. Note that using (lwip_)recvfrom
1898 like this is a bit slow and that using (lwip)getpeername is the
1899 good lwip way to do it (so, using recv is faster on tcp sockets).
1901 2008-03-12 Frédéric Bernon, Jonathan Larmour
1902 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1903 recv_raw() does not consume data", and the ping sample (with
1904 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1905 returned the IP payload, without the IP header).
1907 2008-03-04 Jonathan Larmour
1908 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1909 and/or warnings on some systems where mem_size_t and size_t differ.
1910 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1912 2008-03-04 Kieran Mansley (contributions by others)
1913 * Numerous small compiler error/warning fixes from contributions to
1914 mailing list after 1.3.0 release candidate made.
1916 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1917 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1919 2008-01-15 Kieran Mansley
1920 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1921 prevented from sending by a small send window, not just a zero
1924 2008-01-09 Jonathan Larmour
1925 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1926 conflict with Linux system headers.
1928 2008-01-06 Jonathan Larmour
1929 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1930 address entirely on receiving a DHCPNAK, and restarting discovery.
1932 2007-12-21 Simon Goldschmidt
1933 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1934 is not protected" by using new macros for interlocked access to modify/test
1935 netconn->recv_avail.
1937 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1938 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1940 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1941 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1942 of silly window avoidance and prevent lwIP from shrinking the window)
1944 2007-12-04 Simon Goldschmidt
1945 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1946 data packet was lost): add assert that all segment lists are empty in
1947 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1948 state from LAST_ACK in tcp_process
1950 2007-12-02 Simon Goldschmidt
1951 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1952 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1953 has to be set to 0 in lwipopts.h
1955 2007-12-02 Simon Goldschmidt
1956 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1957 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1958 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1959 This is a fix for thread-safety and allocates all items needed for a netconn
1960 when the netconn is created.
1962 2007-11-30 Simon Goldschmidt
1963 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1964 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1965 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1966 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1968 2007-11-27 Simon Goldschmidt
1969 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1970 letting ip_route only use netifs that are up.
1972 2007-11-27 Simon Goldschmidt
1973 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1974 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1975 sockets block most operations once they have seen a fatal error.
1977 2007-11-27 Simon Goldschmidt
1978 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1979 netif to send as an argument (to be able to send on netifs that are down).
1981 2007-11-26 Simon Goldschmidt
1982 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1985 2007-11-21 Simon Goldschmidt
1986 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1987 Fixed the nagle algorithm; nagle now also works for all raw API applications
1988 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1990 2007-11-12 Frédéric Bernon
1991 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1992 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1993 context in do_getaddr.
1995 2007-11-10 Simon Goldschmidt
1996 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1997 happen any time). Now the packet simply isn't enqueued when out of memory.
1999 2007-11-01 Simon Goldschmidt
2000 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2001 TCP_MSS if that is smaller) as long as no MSS option is received from the
2004 2007-11-01 Simon Goldschmidt
2005 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2006 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2007 sending our configured TCP_MSS instead of the one received).
2009 2007-11-01 Simon Goldschmidt
2010 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2011 calculated based on the configured TCP_MSS, not on the MSS option received
2014 2007-10-09 Simon Goldschmidt
2015 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2016 short and also was generated wrong if checksum coverage != tot_len;
2017 receive: checksum was calculated wrong if checksum coverage != tot_len
2019 2007-10-08 Simon Goldschmidt
2020 * mem.c: lfree was not updated in mem_realloc!
2022 2007-10-07 Frédéric Bernon
2023 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2024 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2025 this change cause an API breakage for netconn_addr, since a parameter
2026 type change. Any compiler should cause an error without any changes in
2027 yours netconn_peer calls (so, it can't be a "silent change"). It also
2028 reduce a little bit the footprint for socket layer (lwip_getpeername &
2029 lwip_getsockname use now a common lwip_getaddrname function since
2030 netconn_peer & netconn_addr have the same parameters).
2032 2007-09-20 Simon Goldschmidt
2033 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2034 by checking tcp_tw_pcbs also
2036 2007-09-19 Simon Goldschmidt
2037 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2039 2007-09-15 Mike Kleshov
2040 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2042 2007-09-06 Frédéric Bernon
2043 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2044 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2045 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2046 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2048 2007-08-30 Frédéric Bernon
2049 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2050 and fix some coding style.
2052 2007-08-28 Frédéric Bernon
2053 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2054 kind of packets. These packets are considered like Ethernet packets (payload
2055 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2056 are considered like IP packets (payload pointing to iphdr).
2058 2007-08-27 Frédéric Bernon
2059 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2060 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2061 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2063 2007-08-24 Kieran Mansley
2064 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2065 compiler (Paradigm C++)
2067 2007-08-09 Frédéric Bernon, Bill Florac
2068 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2069 Introduce IGMP_STATS to centralize statistics management.
2071 2007-08-09 Frédéric Bernon, Bill Florac
2072 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2073 packet on a udp pcb binded on an netif's IP address, and not on "any".
2075 2007-08-09 Frédéric Bernon, Bill Florac
2076 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2077 This is mainly on using lookup/lookfor, and some coding styles...
2079 2007-07-26 Frédéric Bernon (and "thedoctor")
2080 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2082 2007-07-25 Simon Goldschmidt
2083 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2084 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2085 (tcp_output is called again later from tcp timers).
2087 2007-07-25 Simon Goldschmidt
2088 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2089 copy_from_pbuf, which illegally modified the given pbuf.
2091 2007-07-25 Simon Goldschmidt
2092 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2093 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2095 2007-07-24 Simon Goldschmidt
2096 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2097 correct state (must be CLOSED).
2099 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2100 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2101 allocation. It now returns NULL.
2103 2007-07-13 Frédéric Bernon
2104 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2107 2007-07-13 Frédéric Bernon
2108 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2109 because current code doesn't follow rawapi.txt documentation.
2111 2007-07-13 Kieran Mansley
2112 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2113 out of sequence processing of received packets
2115 2007-07-03 Simon Goldschmidt
2116 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2117 assumption is made that this pbuf is in one piece (i.e. not chained). These
2118 assumptions clash with the possibility of converting to fully pool-based
2119 pbuf implementations, where PBUF_RAM pbufs might be chained.
2121 2007-07-03 Simon Goldschmidt
2122 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2123 when closing tcp netconns: removed conn->sem, less context switches when
2124 closing, both netconn_close and netconn_delete should safely close tcp
2127 2007-07-02 Simon Goldschmidt
2128 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2129 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2130 to cache ARP table indices with each pcb instead of single-entry cache for
2133 2007-07-02 Simon Goldschmidt
2134 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2135 warnings when assigning to smaller types.
2137 2007-06-28 Simon Goldschmidt
2138 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2140 2007-06-28 Simon Goldschmidt
2141 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2142 a segment contained chained pbufs)
2144 2007-06-28 Frédéric Bernon
2145 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2146 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2147 possible to define this macro in your own lwipopts.h to always use C library's
2148 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2150 2007-06-28 Frédéric Bernon
2151 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2152 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2153 in api_lib/api_msg (use pointers and not type with table, etc...)
2155 2007-06-26 Simon Goldschmidt
2156 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2158 2007-06-25 Simon Goldschmidt
2159 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2160 for udp packets with no matching pcb.
2162 2007-06-25 Simon Goldschmidt
2163 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2164 could get udp input packets if the remote side matched.
2166 2007-06-13 Simon Goldschmidt
2167 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2168 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2170 2007-06-13 Simon Goldschmidt
2171 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2172 -> netconn_new_..() does not allocate a new connection for unsupported
2175 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2176 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2177 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2179 2007-06-13 Frédéric Bernon, Matthias Weisser
2180 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2181 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2182 some macro names collision with some OS macros.
2184 2007-06-11 Simon Goldschmidt
2185 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2186 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2187 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2190 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2191 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2192 where TCP flags wasn't initialized in tcp_keepalive.
2194 2007-06-03 Simon Goldschmidt
2195 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2196 registered, p->payload was modified without modifying p->len if sending
2197 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2199 2007-06-03 Simon Goldschmidt
2200 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2201 re-used the input pbuf even if that didn't have enough space to include the
2202 link headers. Now the space is tested and a new pbuf is allocated for the
2203 echo response packet if the echo request pbuf isn't big enough.
2205 2007-06-01 Simon Goldschmidt
2206 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2208 2007-05-23 Frédéric Bernon
2209 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2210 allocated by do_listen if success) and netconn_accept errors handling. In
2211 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2212 by ASSERT, except for netconn_delete.
2214 2007-05-23 Frédéric Bernon
2215 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2216 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2217 directly close the recvmbox).
2219 2007-05-22 Simon Goldschmidt
2220 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2221 bound but unconnected (and non-listening) tcp_pcbs.
2223 2007-05-22 Frédéric Bernon
2224 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2225 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2226 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2227 like "sys_timeout" in their application threads.
2229 2007-05-22 Frédéric Bernon
2230 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2231 which parameters are used by which do_xxx function, and to avoid "misusing"
2232 parameters (patch #5938).
2234 2007-05-22 Simon Goldschmidt
2235 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2236 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2237 is only 8 bits wide. This affects the api, as there, the protocol was
2240 2007-05-18 Simon Goldschmidt
2241 * memp.c: addition to patch #5913: smaller pointer was returned but
2242 memp_memory was the same size -> did not save memory.
2244 2007-05-16 Simon Goldschmidt
2245 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2248 2007-05-16 Simon Goldschmidt
2249 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2250 as the one of the netif used for sending to prevent sending from old
2251 addresses after a netif address gets changed (partly fixes bug #3168).
2253 2007-05-16 Frédéric Bernon
2254 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2255 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2256 tcpip_init) because we have to be sure that network interfaces are already
2257 added (mac filter is updated only in igmp_init for the moment).
2259 2007-05-16 Simon Goldschmidt
2260 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2261 into sys_arch_sem_wait calls to prevent timers from running while waiting
2262 for the heap. This fixes bug #19167.
2264 2007-05-13 Simon Goldschmidt
2265 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2266 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2269 2007-05-07 Simon Goldschmidt
2270 * mem.c: Another attempt to fix bug #17922.
2272 2007-05-04 Simon Goldschmidt
2273 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2274 implementation so that it can be reused (don't allocate the target
2275 pbuf inside pbuf_copy()).
2277 2007-05-04 Simon Goldschmidt
2278 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2279 to save a little RAM (next pointer of memp is not used while not in pool).
2282 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2285 2007-04-23 Simon Goldschmidt
2286 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2287 in NULL reference for incoming TCP packets". Loopif has to be configured
2288 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2289 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2290 putting packets on a list that is fed to the stack by calling loopif_poll()
2291 (single-thread / NO_SYS / polling environment where e.g.
2292 netif->input() = ip_input).
2294 2007-04-17 Jonathan Larmour
2295 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2296 the difference between two u16_t's.
2297 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2298 MEMP_NUM_NETCONN in sockets.c right now.
2300 2007-04-12 Jonathan Larmour
2301 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2303 2007-04-12 Kieran Mansley
2304 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2305 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2307 2007-04-11 Simon Goldschmidt
2308 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2309 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2310 pbuf.c: removed functions no needed any more (by etharp).
2312 2007-04-11 Kieran Mansley
2313 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2314 "Constant is long" warnings with 16bit compilers. Contributed by
2315 avatar@mmlab.cse.yzu.edu.tw
2317 2007-04-05 Frédéric Bernon, Jonathan Larmour
2318 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2319 the mailbox is active". Now, the post is only done during a connect, and do_send,
2320 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2322 2007-04-03 Frédéric Bernon
2323 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2324 packets. See patch #5834.
2326 2007-03-30 Frédéric Bernon
2327 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2328 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2330 2007-03-30 Frédéric Bernon
2331 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2332 others environment defines (these were too "generic").
2334 2007-03-28 Frédéric Bernon
2335 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2336 result and can cause a crash. lwip_send now check netbuf_ref result.
2338 2007-03-28 Simon Goldschmidt
2339 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2340 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2341 defined. This is the way it should have been already (looking at
2344 2007-03-28 Kieran Mansley
2345 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2346 IP and TCP headers *and* physical link headers
2348 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2349 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2350 to send some garbage. It is not a definitive solution, but the patch does solve
2351 the problem for most cases.
2353 2007-03-22 Frédéric Bernon
2354 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2356 2007-03-22 Frédéric Bernon
2357 * api_lib.c: somes resources couldn't be freed if there was errors during
2358 netconn_new_with_proto_and_callback.
2360 2007-03-22 Frédéric Bernon
2361 * ethernetif.c: update netif->input calls to check return value. In older ports,
2362 it's a good idea to upgrade them, even if before, there could be another problem
2363 (access to an uninitialized mailbox).
2365 2007-03-21 Simon Goldschmidt
2366 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2367 by casting to unsigned).
2369 2007-03-21 Frédéric Bernon
2370 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2371 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2372 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2373 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2374 faster and more reliable communication between api_lib and tcpip.
2376 2007-03-21 Frédéric Bernon
2377 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2379 2007-03-21 Frédéric Bernon
2380 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2382 2007-03-21 Kieran Mansley
2383 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2386 2007-03-21 Kieran Mansley
2387 * Fix all uses of pbuf_header to check the return value. In some
2388 cases just assert if it fails as I'm not sure how to fix them, but
2389 this is no worse than before when they would carry on regardless
2392 2007-03-21 Kieran Mansley
2393 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2394 comment out missing header include in icmp.c
2396 2007-03-20 Frédéric Bernon
2397 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2398 synchronized with memp.h.
2400 2007-03-20 Frédéric Bernon
2401 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2402 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2403 network interfaces. Also fix a compiler warning.
2405 2007-03-20 Kieran Mansley
2406 * udp.c: Only try and use pbuf_header() to make space for headers if
2407 not a ROM or REF pbuf.
2409 2007-03-19 Frédéric Bernon
2410 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2413 2007-03-19 Frédéric Bernon
2414 * Remove unimplemented "memp_realloc" function from memp.h.
2416 2007-03-11 Simon Goldschmidt
2417 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2420 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2421 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2422 (missing `const' qualifier in socket functions), to get more compatible to
2423 standard POSIX sockets.
2425 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2426 * sockets.c: Add asserts inside bind, connect and sendto to check input
2427 parameters. Remove excessive set_errno() calls after get_socket(), because
2428 errno is set inside of get_socket(). Move last sock_set_errno() inside
2431 2007-03-09 Simon Goldschmidt
2432 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2433 was allocated too small.
2435 2007-03-06 Simon Goldschmidt
2436 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2437 the stack from concurrent access.
2439 2007-03-06 Frédéric Bernon, Dmitry Potapov
2440 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2441 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2443 2007-03-06 Simon Goldschmidt
2444 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2445 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2447 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2448 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2449 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2450 Allow to do ARP processing for incoming packets inside tcpip_thread
2451 (protecting ARP layer against concurrent access). You can also disable
2452 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2453 Older ports have to use tcpip_ethinput.
2455 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2456 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2457 from pointer target type"
2459 2007-03-05 Frédéric Bernon
2460 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2461 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2463 2007-03-04 Frédéric Bernon
2464 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2467 2007-03-04 Frédéric Bernon
2468 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2470 The api_msg struct stay on the stack (not moved to netconn struct).
2472 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2473 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2474 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2475 Also fixed cast warning in pbuf_alloc()
2477 2007-03-04 Simon Goldschmidt
2478 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2479 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2481 2007-03-03 Frédéric Bernon
2482 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2483 It is static, and never used in udp.c except udp_init().
2485 2007-03-02 Simon Goldschmidt
2486 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2487 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2488 initialized before tcpip_thread is running (e.g. before OS is started)
2490 2007-03-02 Frédéric Bernon
2491 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2494 2007-02-28 Kieran Mansley
2495 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2496 outside the region of the pbuf by pbuf_header()
2498 2007-02-28 Kieran Mansley
2499 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2500 when supplied timeout is also non-zero
2504 2006-12-05 Leon Woestenberg
2505 * CHANGELOG: Mention STABLE-1.2.0 release.
2509 2006-12-01 Christiaan Simons
2510 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2511 Note this is a workaround. Currently I have no other options left.
2513 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2514 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2515 to include/lwip/opt.h.
2516 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2517 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2518 * opt.h: Add above new options.
2520 2006-08-18 Christiaan Simons
2521 * tcp_{in,out}.c: added SNMP counters.
2522 * ipv4/ip.c: added SNMP counters.
2523 * ipv4/ip_frag.c: added SNMP counters.
2525 2006-08-08 Christiaan Simons
2526 * etharp.{c,h}: added etharp_find_addr() to read
2527 (stable) ethernet/IP address pair from ARP table
2529 2006-07-14 Christiaan Simons
2530 * mib_structs.c: added
2531 * include/lwip/snmp_structs.h: added
2532 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2534 2006-07-06 Christiaan Simons
2535 * snmp/asn1_{enc,dec}.c added
2537 * snmp/msg_{in,out}.c added
2538 * include/lwip/snmp_asn1.h added
2539 * include/lwip/snmp_msg.h added
2540 * doc/snmp_agent.txt added
2542 2006-03-29 Christiaan Simons
2543 * inet.c, inet.h: Added platform byteswap support.
2544 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2545 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2549 2006-11-30 Christiaan Simons
2550 * dhcp.c: Fixed false triggers of request_timeout.
2552 2006-11-28 Christiaan Simons
2553 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2555 2006-10-11 Christiaan Simons
2556 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2557 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2558 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2559 identifier from 170 to 136 (bug #17574).
2561 2006-10-10 Christiaan Simons
2562 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2564 2006-08-17 Christiaan Simons
2565 * udp.c: Fixed bug #17200, added check for broadcast
2566 destinations for PCBs bound to a unicast address.
2568 2006-08-07 Christiaan Simons
2569 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2571 2006-06-27 Christiaan Simons
2572 * api_msg.c: Applied patch for cold case (bug #11135).
2573 In accept_function() ensure newconn->callback is always initialized.
2575 2006-06-15 Christiaan Simons
2576 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2577 facilitate printing of mem_size_t and u16_t statistics.
2579 2006-06-14 Christiaan Simons
2580 * api_msg.c: Applied patch #5146 to handle allocation failures
2581 in accept() by Kevin Lawson.
2583 2006-05-26 Christiaan Simons
2584 * api_lib.c: Removed conn->sem creation and destruction
2585 from netconn_write() and added sys_sem_new to netconn_new_*.
2589 2006-03-03 Christiaan Simons
2590 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2591 access and added pbuf_alloc() return value checks.
2593 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2594 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2595 now handled by the checksum routine properly.
2597 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2598 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2599 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2601 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2602 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2603 submitted by Mitrani Hiroshi.
2605 2005-12-15 Christiaan Simons
2606 * inet.c: Disabled the added summing routine to preserve code space.
2608 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2609 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2610 Added Curt McDowell's optimized checksumming routine for future
2611 inclusion. Need to create test case for unaliged, aligned, odd,
2612 even length combination of cases on various endianess machines.
2614 2005-12-09 Christiaan Simons
2615 * inet.c: Rewrote standard checksum routine in proper portable C.
2617 2005-11-25 Christiaan Simons
2618 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2619 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2620 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2622 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2623 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2624 routine by Peter Jolasson.
2625 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2627 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2628 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2629 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2631 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2632 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2634 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2635 * udp.c: UDP pcb->recv() was called even when it was NULL.
2639 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2640 * etharp.*: Disabled multiple packets on the ARP queue.
2641 This clashes with TCP queueing.
2643 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2644 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2645 Halved the ARP period, doubled the period counts.
2646 ETHARP_MAX_PENDING now should be at least 2. This prevents
2647 the counter from reaching 0 right away (which would allow
2648 too little time for ARP responses to be received).
2650 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2651 * dhcp.c: Decline messages were not multicast but unicast.
2652 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2653 Do not try hard to insert arbitrary packet's source address,
2654 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2655 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2656 querying an address will see it appear in the cache (DHCP could
2657 suffer from this when a server invalidly gave an in-use address.)
2658 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2659 comparing network addresses (identifiers), not the network masks
2661 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2662 IP address actually belongs to the network of the given interface.
2664 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2665 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2669 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2670 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2671 even if one is already pending, if the rcv_wnd is above a threshold
2672 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2673 delayed ACK in order to open the window if the stack is only receiving data.
2675 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2676 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2678 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2679 * etharp.c: Make sure the first pbuf queued on an ARP entry
2680 is properly ref counted.
2682 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2683 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2684 warnings about comparison.
2685 * pbuf.c: Stopped compiler complaining of empty if statement
2686 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2687 * tcp.c: Stopped compiler complaining of empty if statement
2688 when LWIP_DEBUGF() empty.
2689 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2690 * inet.c: Added a couple of casts to quiet the compiler.
2691 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2693 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2694 * inet.c: Made data types consistent in inet_ntoa().
2695 Added casts for return values of checksum routines, to pacify compiler.
2696 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2697 Small corrections to some debugging statements, to pacify compiler.
2699 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2700 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2701 * ethernetif.c Updated low_level_output() to match prototype for
2702 netif->linkoutput and changed low_level_input() similarly for consistency.
2703 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2704 of raw_recv() in raw.h and so avoid compiler error.
2705 * sockets.c: Added trivial (int) cast to keep compiler happier.
2706 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2712 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2713 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2714 your cc.h file defines this either 1 or 0. If non-defined,
2716 * .c: Added <string.h> and <errno.h> includes where used.
2717 * etharp.c: Made some array indices unsigned.
2719 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2720 * netif.*: Added netif_set_up()/down().
2721 * dhcp.c: Changes to restart program flow.
2723 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2724 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2725 single-pass lookup for different candidates. Should exploit locality.
2727 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2728 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2729 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2730 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2731 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2735 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2736 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2737 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2738 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2739 is to prefix the 14-bit Ethernet headers with two padding bytes.
2741 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2742 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2743 * etharp.c: Fixed the case where the packet that initiates the ARP request
2744 is not queued, and gets lost. Fixed the case where the packets destination
2745 address is already known; we now always queue the packet and perform an ARP
2752 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2753 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2754 * Fixed two possible NULL references in rare cases.
2760 * Fixed DHCP which did not include the IP address in DECLINE messages.
2764 * etharp.c has been hauled over a bit.
2770 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2771 * Packets sent from ARP queue had invalid source hardware address.
2775 * Pass-by ARP requests do now update the cache.
2779 * No longer dependent on ctype.h.
2780 * New socket options.
2781 * Raw IP pcb support.
2787 * Some debug formatters and casts fixed.
2788 * Numereous fixes in PPP.
2792 * DEBUGF now is LWIP_DEBUGF
2793 * pbuf_dechain() has been re-enabled.
2794 * Mentioned the changed use of CVS branches in README.
2800 * Fixed pool pbuf memory leak in pbuf_alloc().
2801 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2802 Reported by Savin Zlobec.
2804 * PBUF_POOL chains had their tot_len field not set for non-first
2805 pbufs. Fixed in pbuf_alloc().
2809 * Added PPP stack contributed by Marc Boucher
2813 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2815 * ARP queueuing now queues the latest packet instead of the first.
2816 This is the RFC recommended behaviour, but can be overridden in
2823 * TCP has been fixed to deal with the new use of the pbuf->ref
2826 * DHCP dhcp_inform() crash bug fixed.
2830 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2831 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2832 Implemented by David Haas.
2838 * The packet buffer implementation has been enhanced to support
2839 zero-copy and copy-on-demand for packet buffers which have their
2840 payloads in application-managed memory.
2841 Implemented by David Haas.
2843 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2844 if an outgoing packet can be directly sent on the link, or perform
2845 a copy-on-demand when necessary.
2847 The application can safely assume the packet is sent, and the RAM
2848 is available to the application directly after calling udp_send()
2849 or similar function.
2853 * ARP_QUEUEING should now correctly work for all cases, including
2855 Implemented by Leon Woestenberg.
2859 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2860 to a '0.0.0.0' IP address.
2862 * The packet buffer implementation is changed. The pbuf->ref counter
2863 meaning has changed, and several pbuf functions have been
2864 adapted accordingly.
2866 * netif drivers have to be changed to set the hardware address length field
2867 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2868 See the contrib/ports/c16x cs8900 driver as a driver example.
2870 * netif's have a dhcp field that must be initialized to NULL by the driver.
2871 See the contrib/ports/c16x cs8900 driver as a driver example.
2873 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2874 logged in CVS but have not been explained here.
2876 (0.5.3) Changes since version 0.5.2
2880 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2881 threads because it wasn't protected by semaphores.
2885 * struct ip_addr now packed.
2887 * The name of the time variable in arp.c has been changed to ctime
2888 to avoid conflicts with the time() function.
2890 (0.5.2) Changes since version 0.5.1
2894 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2898 * A bug in tcp_parseopt() could cause the stack to hang because of a
2899 malformed TCP option.
2901 * The address of new connections in the accept() function in the BSD
2902 socket library was not handled correctly.
2904 * pbuf_dechain() did not update the ->tot_len field of the tail.
2906 * Aborted TCP connections were not handled correctly in all
2911 * All protocol header structs are now packed.
2913 * The ->len field in the tcp_seg structure now counts the actual
2914 amount of data, and does not add one for SYN and FIN segments.
2916 (0.5.1) Changes since version 0.5.0
2920 * Possible to run as a user process under Linux.
2922 * Preliminary support for cross platform packed structs.
2924 * ARP timer now implemented.
2928 * TCP output queue length was badly initialized when opening
2931 * TCP delayed ACKs were not sent correctly.
2933 * Explicit initialization of BSS segment variables.
2935 * read() in BSD socket library could drop data.
2937 * Problems with memory alignment.
2939 * Situations when all TCP buffers were used could lead to
2942 * TCP MSS option wasn't parsed correctly.
2944 * Problems with UDP checksum calculation.
2946 * IP multicast address tests had endianess problems.
2948 * ARP requests had wrong destination hardware address.
2952 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2954 * A ->linkoutput() member was added to struct netif.
2956 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2958 * ntoh* macros are now null definitions for big endian CPUs.
2960 (0.5.0) Changes since version 0.4.2
2964 * Redesigned operating system emulation layer to make porting easier.
2966 * Better control over TCP output buffers.
2968 * Documenation added.
2972 * Locking issues in buffer management.
2974 * Bugfixes in the sequential API.
2976 * IP forwarding could cause memory leakage. This has been fixed.
2980 * Directory structure somewhat changed; the core/ tree has been
2983 (0.4.2) Changes since version 0.4.1
2987 * Experimental ARP implementation added.
2989 * Skeleton Ethernet driver added.
2991 * Experimental BSD socket API library added.
2995 * In very intense situations, memory leakage could occur. This has
3000 * Variables named "data" and "code" have been renamed in order to
3001 avoid name conflicts in certain compilers.
3003 * Variable++ have in appliciable cases been translated to ++variable
3004 since some compilers generate better code in the latter case.
3006 (0.4.1) Changes since version 0.4
3010 * TCP: Connection attempts time out earlier than data
3011 transmissions. Nagle algorithm implemented. Push flag set on the
3012 last segment in a burst.
3014 * UDP: experimental support for UDP-Lite extensions.
3018 * TCP: out of order segments were in some cases handled incorrectly,
3019 and this has now been fixed. Delayed acknowledgements was broken
3020 in 0.4, has now been fixed. Binding to an address that is in use
3021 now results in an error. Reset connections sometimes hung an
3022 application; this has been fixed.
3024 * Checksum calculation sometimes failed for chained pbufs with odd
3025 lengths. This has been fixed.
3027 * API: a lot of bug fixes in the API. The UDP API has been improved
3028 and tested. Error reporting and handling has been
3029 improved. Logical flaws and race conditions for incoming TCP
3030 connections has been found and removed.
3032 * Memory manager: alignment issues. Reallocating memory sometimes
3033 failed, this has been fixed.
3035 * Generic library: bcopy was flawed and has been fixed.
3039 * API: all datatypes has been changed from generic ones such as
3040 ints, to specified ones such as u16_t. Functions that return
3041 errors now have the correct type (err_t).
3043 * General: A lot of code cleaned up and debugging code removed. Many
3044 portability issues have been fixed.
3046 * The license was changed; the advertising clause was removed.
3050 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3051 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3054 (0.4) Changes since version 0.3.1
3056 * Memory management has been radically changed; instead of
3057 allocating memory from a shared heap, memory for objects that are
3058 rapidly allocated and deallocated is now kept in pools. Allocation
3059 and deallocation from those memory pools is very fast. The shared
3060 heap is still present but is used less frequently.
3062 * The memory, memory pool, and packet buffer subsystems now support
3063 4-, 2-, or 1-byte alignment.
3065 * "Out of memory" situations are handled in a more robust way.
3067 * Stack usage has been reduced.
3069 * Easier configuration of lwIP parameters such as memory usage,
3070 TTLs, statistics gathering, etc. All configuration parameters are
3071 now kept in a single header file "lwipopts.h".
3073 * The directory structure has been changed slightly so that all
3074 architecture specific files are kept under the src/arch
3077 * Error propagation has been improved, both in the protocol modules
3080 * The code for the RTXC architecture has been implemented, tested
3083 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3084 the Internet checksum modules.
3086 * Bugs related to porting between a 32-bit and a 16-bit architecture
3087 have been found and corrected.
3089 * The license has been changed slightly to conform more with the
3090 original BSD license, including the advertisement clause.
3092 (0.3.1) Changes since version 0.3
3094 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3095 RAM never returned the RAM when the pbuf was deallocated.
3097 * TCP congestion control, window updates and retransmissions did not
3098 work correctly. This has now been fixed.
3100 * Bugfixes in the API.
3102 (0.3) Changes since version 0.2
3104 * New and improved directory structure. All include files are now
3105 kept in a dedicated include/ directory.
3107 * The API now has proper error handling. A new function,
3108 netconn_err(), now returns an error code for the connection in
3111 * Improvements in the memory management subsystem. The system now
3112 keeps a pointer to the lowest free memory block. A new function,
3113 mem_malloc2() tries to allocate memory once, and if it fails tries
3114 to free some memory and retry the allocation.
3116 * Much testing has been done with limited memory
3117 configurations. lwIP now does a better job when overloaded.
3119 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3121 * Many bugfixes in the TCP code:
3123 - Fixed a bug in tcp_close().
3125 - The TCP receive window was incorrectly closed when out of
3126 sequence segments was received. This has been fixed.
3128 - Connections are now timed-out of the FIN-WAIT-2 state.
3130 - The initial congestion window could in some cases be too
3131 large. This has been fixed.
3133 - The retransmission queue could in some cases be screwed up. This
3136 - TCP RST flag now handled correctly.
3138 - Out of sequence data was in some cases never delivered to the
3139 application. This has been fixed.
3141 - Retransmitted segments now contain the correct acknowledgment
3142 number and advertised window.
3144 - TCP retransmission timeout backoffs are not correctly computed
3145 (ala BSD). After a number of retransmissions, TCP now gives up
3148 * TCP connections now are kept on three lists, one for active
3149 connections, one for listening connections, and one for
3150 connections that are in TIME-WAIT. This greatly speeds up the fast
3151 timeout processing for sending delayed ACKs.
3153 * TCP now provides proper feedback to the application when a
3154 connection has been successfully set up.
3156 * More comments have been added to the code. The code has also been
3157 somewhat cleaned up.
3159 (0.2) Initial public release.