5 * [Enter new changes just after this line - do not remove this line]
9 2011-08-24: Simon Goldschmidt
10 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
12 2011-07-26: Simon Goldschmidt
13 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
14 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
16 2011-07-21: Simon Goldschmidt (patch by hanhui)
17 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
18 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
19 Also added code to allow ip_forward() to forward non-broadcast packets to
20 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
22 2011-07-21: Simon Goldschmidt
23 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
24 ioctl/FIONREAD return the size of the next pending datagram.
26 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
27 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
30 2011-05-25: Simon Goldschmidt
31 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
32 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
33 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
34 code so that the code is more readable.
36 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
37 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
38 Ivan! (this is work in progress: we're just post release anyway :-)
40 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
41 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
47 2011-09-03: Simon Goldschmidt
48 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
49 is aggregated and sent to application
51 2011-09-01: Simon Goldschmidt
52 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
55 2011-09-01: Simon Goldschmidt
56 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
58 2011-08-24: Simon Goldschmidt
59 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
61 2011-08-24: Simon Goldschmidt
62 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
63 accept() on UDP connections
65 2011-08-24: Simon Goldschmidt
66 * sockets.h: fixed bug #34057 socklen_t should be a typedef
68 2011-08-24: Simon Goldschmidt
69 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
71 2011-08-24: Simon Goldschmidt
72 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
74 2011-08-24: Simon Goldschmidt
75 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
77 2011-08-22: Simon Goldschmidt
78 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
79 merely prevents nagle from not transmitting fast after closing.)
81 2011-07-22: Simon Goldschmidt
82 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
83 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
84 lwip_send() sends as much as possible for non-blocking sockets
86 2011-07-22: Simon Goldschmidt
87 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
88 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
89 at regular intervals from main level.
91 2011-07-21: Simon Goldschmidt
92 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
93 sending an ARP request when an ARP entry is used in the last minute before
96 2011-07-04: Simon Goldschmidt
97 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
99 2011-06-26: Simon Goldschmidt
100 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
101 updating its documentation only.
103 2011-06-26: Simon Goldschmidt
104 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
107 2011-06-26: Simon Goldschmidt
108 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
116 2011-03-27: Simon Goldschmidt
117 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
118 calculate it in tcp_zero_window_probe (the only place where it was used).
120 2010-11-21: Simon Goldschmidt
121 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
124 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
125 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
126 IP_MULTICAST_LOOP at socket- and raw-API level.
128 2010-06-16: Simon Goldschmidt
129 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
130 link-layer-addressed UDP traffic to be received while a netif is down (just
131 like DHCP during configuration)
133 2010-05-22: Simon Goldschmidt
134 * many many files: bug #27352: removed packing from ip_addr_t, the packed
135 version is now only used in protocol headers. Added global storage for
136 current src/dest IP address while in input functions.
138 2010-05-16: Simon Goldschmidt
139 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
140 calculation (and use them throughout the stack where applicable)
142 2010-05-16: Simon Goldschmidt
143 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
144 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
146 2010-05-16: Simon Goldschmidt
147 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
148 MEMP pool instead of the heap
150 2010-05-13: Simon Goldschmidt
151 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
152 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
153 packets to more than one pcb.
155 2010-05-02: Simon Goldschmidt
156 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
157 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
159 2010-04-30: Simon Goldschmidt
160 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
161 take a precalculated checksum, added pbuf_fill_chksum() to copy data
162 into a pbuf and at the same time calculating the checksum for that data
164 2010-04-29: Simon Goldschmidt
165 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
166 2-byte-aligned IP addresses and MAC addresses
168 2010-04-28: Patch by Bill Auerbach
169 * ip.c: Inline generating IP checksum to save a function call
171 2010-04-14: Simon Goldschmidt
172 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
173 tcpip_thread processes messages or timeouts to implement a watchdog.
175 2010-03-28: Simon Goldschmidt
176 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
177 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
179 2010-03-27: Simon Goldschmidt
180 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
181 etharp_query to prevent unnecessary function calls (inspired by
184 2010-03-20: Simon Goldschmidt
185 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
186 since the linker cannot do this automatically to save space.
188 2010-03-20: Simon Goldschmidt
189 * opt.h, etharp.c/.h: Added support for static ARP table entries
191 2010-03-14: Simon Goldschmidt
192 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
193 when creating TCP segments, not when (re-)transmitting them.
195 2010-03-07: Simon Goldschmidt
196 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
197 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
198 This should speed up receiving data on sockets as the select code in
199 event_callback is only executed when select is waiting.
201 2010-03-06: Simon Goldschmidt
202 * tcp_out.c: task #7013 (Create option to have all packets delivered to
203 netif->output in one piece): Always copy to try to create single pbufs
206 2010-03-06: Simon Goldschmidt
207 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
208 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
209 for tcp netconns to receive pbufs, not netbufs; use that function
212 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
213 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
214 Work on tcp_enqueue: Don't waste memory when chaining segments,
215 added option TCP_OVERSIZE to prevent creating many small pbufs when
216 calling tcp_write with many small blocks of data. Instead, pbufs are
217 allocated larger than needed and the space is used for later calls to
220 2010-02-21: Simon Goldschmidt
221 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
224 2010-02-21: Simon Goldschmidt
225 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
226 implementation of tcp to make API usage cleare to application programmers
228 2010-02-14: Simon Goldschmidt/Stephane Lesage
229 * ip_addr.h: Improved some defines working on ip addresses, added faster
230 macro to copy addresses that cannot be NULL
232 2010-02-13: Simon Goldschmidt
233 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
234 blocking send operation)
236 2010-02-12: Simon Goldschmidt
237 * sockets.c/.h: Added a minimal version of posix fctl() to have a
238 standardised way to set O_NONBLOCK for nonblocking sockets.
240 2010-02-12: Simon Goldschmidt
241 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
242 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
243 and dhcp work with user-allocated structs instead of callin mem_malloc
245 2010-02-12: Simon Goldschmidt/Jeff Barber
246 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
247 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
249 2010-02-12: Simon Goldschmidt
250 * sys layer: task #10139 (Prefer statically allocated memory): converted
251 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
252 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
253 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
254 to let sys.h use binary semaphores instead of mutexes - as before)
256 2010-02-09: Simon Goldschmidt (Simon Kallweit)
257 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
258 (Restart system timeout handling)
260 2010-02-09: Simon Goldschmidt
261 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
262 netif.c) - loopif does not have to be created by the port any more,
263 just define LWIP_HAVE_LOOPIF to 1.
265 2010-02-08: Simon Goldschmidt
266 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
267 inet_ntoa_r/ipaddr_ntoa_r
269 2010-02-08: Simon Goldschmidt
270 * netif.h: Added netif_s/get_igmp_mac_filter() macros
272 2010-02-05: Simon Goldschmidt
273 * netif.h: Added function-like macros to get/set the hostname on a netif
275 2010-02-04: Simon Goldschmidt
276 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
277 make changing the actual implementation behind the typedef easier.
279 2010-02-01: Simon Goldschmidt
280 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
281 for allocating memory when getaddrinfo() is called.
283 2010-01-31: Simon Goldschmidt
284 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
285 them once instead of parsing for every option. This also removes
286 the need for mem_malloc from dhcp_recv and makes it possible to
287 correctly retrieve the BOOTP file.
289 2010-01-30: simon Goldschmidt
290 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
293 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
294 * api.h, api_msg.c, sockets.c: Added except set support in select
297 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
298 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
299 Add non-blocking support for connect (partly from patch #6860),
300 plus many cleanups in socket & netconn API.
302 2010-01-27: Simon Goldschmidt
303 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
304 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
306 2010-01-26: Simon Goldschmidt
307 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
309 2010-01-14: Simon Goldschmidt
310 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
311 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
313 2010-01-13: Simon Goldschmidt
314 * mem.c: The heap now may be moved to user-defined memory by defining
315 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
316 (patch #6966 and bug #26133)
318 2010-01-10: Simon Goldschmidt (Bill Auerbach)
319 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
322 2010-01-10: Simon Goldschmidt
323 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
324 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
326 2009-12-31: Simon Goldschmidt
327 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
328 added timers.c/.h: Separated timer implementation from semaphore/mbox
329 implementation, moved timer implementation to timers.c/.h, timers are
330 now only called from tcpip_thread or by explicitly checking them.
333 2009-12-27: Simon Goldschmidt
334 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
335 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
340 2011-04-20: Simon Goldschmidt
341 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
343 2011-04-13: Simon Goldschmidt
344 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
345 using ports in the IANA private/dynamic range (49152 through 65535).
347 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
348 * etharp.h/.c: Fixed broken VLAN support.
350 2011-03-27: Simon Goldschmidt
351 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
352 pcbs) by checking if the pcb was bound (local_port != 0).
354 2011-03-27: Simon Goldschmidt
355 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
357 2011-03-27: Simon Goldschmidt
358 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
359 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
361 2011-03-27: Simon Goldschmidt
362 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
363 is present never times out) by starting retransmission timer before checking
366 2011-03-22: Simon Goldschmidt
367 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
368 calling sio_read_abort() if the file descriptor is valid.
370 2011-03-14: Simon Goldschmidt
371 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
372 more than once can render a socket useless) since it mainly involves changing
373 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
375 2011-03-13: Simon Goldschmidt
376 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
377 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
378 use EALRADY instead of -1
380 2011-03-13: Simon Goldschmidt
381 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
382 connection has been aborted by err_tcp (since this is not a normal closing
385 2011-03-13: Simon Goldschmidt
386 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
387 with pcb->state != CLOSED
389 2011-02-17: Simon Goldschmidt
390 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
393 2011-02-17: Simon Goldschmidt
394 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
396 2011-01-24: Simon Goldschmidt
397 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
399 2010-12-02: Simon Goldschmidt
400 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
402 2010-11-23: Simon Goldschmidt
403 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
404 LWIP_SO_RCVBUF and ioctl/FIONREAD.
406 2010-11-23: Simon Goldschmidt
407 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
408 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
410 2010-11-23: Simon Goldschmidt
411 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
412 refusing 'refused_data' again.
414 2010-11-22: Simon Goldschmidt
415 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
416 after a successful nonblocking connection.
418 2010-11-22: Simon Goldschmidt
419 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
420 must be sent link-local
422 2010-11-22: Simon Goldschmidt
423 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
426 2010-11-20: Simon Goldschmidt
427 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
429 2010-11-20: Simon Goldschmidt
430 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
431 resemble other stacks.
433 2010-11-20: Simon Goldschmidt
434 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
435 no-copy TCP writes will never succeed.
437 2010-11-20: Simon Goldschmidt
438 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
439 not match documentation: return ERR_ARG instead of ERR_VAL if not
440 initialized or wrong argument.
442 2010-10-20: Simon Goldschmidt
443 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
445 2010-10-05: Simon Goldschmidt
446 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
447 replugging the network cable after an AutoIP address was assigned.
449 2010-08-10: Simon Goldschmidt
450 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
452 2010-08-03: Simon Goldschmidt
453 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
455 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
456 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
457 endian architectures)
459 2010-07-28: Simon Goldschmidt
460 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
463 2010-07-27: Simon Goldschmidt
464 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
465 harm but never did anything
467 2010-07-21: Simon Goldschmidt
468 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
471 2010-07-16: Kieran Mansley
472 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
474 2010-07-10: Simon Goldschmidt
475 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
477 2010-06-30: Simon Goldschmidt
478 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
481 2010-06-28: Kieran Mansley
482 * timers.c remove unportable printing of C function pointers
484 2010-06-24: Simon Goldschmidt
485 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
486 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
488 2010-06-24: Simon Goldschmidt
489 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
490 implemented shutdown at socket level.
492 2010-06-21: Simon Goldschmidt
493 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
494 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
495 custom pbufs that reference other (original) pbufs. Additionally set
496 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
498 2010-06-15: Simon Goldschmidt
499 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
501 2010-06-14: Simon Goldschmidt
502 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
504 2010-06-12: Simon Goldschmidt
505 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
508 2010-05-17: Simon Goldschmidt
509 * netdb.c: Correctly NULL-terminate h_addr_list
511 2010-05-16: Simon Goldschmidt
512 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
513 "symbol already defined" i.e. when linking to winsock
515 2010-05-05: Simon Goldschmidt
516 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
519 2010-04-21: Simon Goldschmidt
520 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
523 2010-03-28: Luca Ceresoli
524 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
526 2010-03-27: Luca Ceresoli
527 * mib2.c: patch #7130: remove meaningless const qualifiers
529 2010-03-26: Simon Goldschmidt
530 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
532 2010-03-26: Simon Goldschmidt
533 * various files: Fixed compiling with different options disabled (TCP/UDP),
534 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
536 2010-03-25: Simon Goldschmidt
537 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
539 2010-03-25: Simon Goldschmidt
540 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
541 overrunning our rcv_wnd in ooseq case.
543 2010-03-22: Simon Goldschmidt
544 * tcp.c: tcp_listen() did not copy the pcb's prio.
546 2010-03-19: Simon Goldschmidt
547 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
549 2010-03-14: Simon Goldschmidt
550 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
551 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
552 and basing PBUF_LINK_HLEN on it.
554 2010-03-08: Simon Goldschmidt
555 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
556 when assiging routable address): when checking incoming packets and
557 aborting existing connection on address change, filter out link-local
560 2010-03-06: Simon Goldschmidt
561 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
563 2010-03-06: Simon Goldschmidt
564 * ipv4/ip.c: Don't try to forward link-local addresses
566 2010-03-06: Simon Goldschmidt
567 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
570 2010-03-05: Simon Goldschmidt
571 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
574 2010-03-05: Simon Goldschmidt
575 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
576 into multiple calls to tcp_write.
578 2010-02-21: Simon Goldschmidt
579 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
580 the implementation of DNS_USES_STATIC_BUF==1)
582 2010-02-20: Simon Goldschmidt
583 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
584 close() vs. shutdown(). Now the application does not get any more
585 recv callbacks after calling tcp_close(). Added tcp_shutdown().
587 2010-02-19: Simon Goldschmidt
588 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
589 confusion with realloc()
591 2010-02-15: Simon Goldschmidt/Stephane Lesage
592 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
595 2010-02-14: Simon Goldschmidt
596 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
597 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
598 admin-status of a netif are up
600 2010-02-14: Simon Goldschmidt
601 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
602 reception and is not really necessary
604 2010-02-14: Simon Goldschmidt
605 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
606 request was directed as us (RFC 826, Packet Reception), otherwise
607 only update existing entries; internalized some functions
609 2010-02-14: Simon Goldschmidt
610 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
611 disabled on netif used for PPPoE) by adding a new netif flag
612 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
613 device but prevents usage of ARP (so that ethernet_input can be used
616 2010-02-12: Simon Goldschmidt
617 * netif.c: netif_set_link_up/down: only do something if the link state
620 2010-02-12: Simon Goldschmidt/Stephane Lesage
621 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
624 2010-02-12: Simon Goldschmidt
625 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
627 2010-02-09: Simon Goldschmidt
628 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
629 (recv() makes receive window update for data that wasn't received by
632 2010-02-09: Simon Goldschmidt/Stephane Lesage
633 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
634 or any netconn_recv() error)
636 2010-02-09: Simon Goldschmidt
637 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
639 2010-02-09: Simon Goldschmidt
640 * netif.c: For loopback packets, adjust the stats- and snmp-counters
641 for the loopback netif.
643 2010-02-08: Simon Goldschmidt
644 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
645 since they are not used anywhere else.
647 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
648 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
649 (patch from bug #28798)
651 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
652 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
653 another bug when LWIP_RAND() returns zero.
655 2010-02-04: Simon Goldschmidt
656 * nearly every file: Use macros defined in ip_addr.h (some of them new)
657 to work with IP addresses (preparation for bug #27352 - Change ip_addr
658 from struct to typedef (u32_t) - and better code).
660 2010-01-31: Simon Goldschmidt
661 * netif.c: Don't call the link-callback from netif_set_up/down() since
662 this invalidly retriggers DHCP.
664 2010-01-29: Simon Goldschmidt
665 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
666 portability file inet.h and its contents from the stack: moved htonX-
667 functions to def.h (and the new def.c - they are not ipv4 dependent),
668 let inet.h depend on ip_addr.h and not the other way round.
669 This fixes bug #28732.
671 2010-01-28: Kieran Mansley
672 * tcp.c: Ensure ssthresh >= 2*MSS
674 2010-01-27: Simon Goldschmidt
675 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
676 callback can lead to accessing unallocated memory. As a consequence,
677 ERR_ABRT means the application has called tcp_abort()!
679 2010-01-25: Simon Goldschmidt
680 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
681 not implemented in SNMP): write-only or not-accessible are still
682 returned by getnext (though not by get)
684 2010-01-24: Simon Goldschmidt
685 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
686 not use reserved C/C++ keywords
688 2010-01-23: Simon Goldschmidt
689 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
692 2010-01-21: Simon Goldschmidt
693 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
694 if tcp_enqueue fails) both in raw- and netconn-API
696 2010-01-19: Simon Goldschmidt
697 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
699 2010-01-18: Iordan Neshev/Simon Goldschmidt
700 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
701 bugfix backports from 2.4.x.
703 2010-01-18: Simon Goldschmidt
704 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
706 2010-01-17: Simon Goldschmidt
707 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
708 task #10102: "netconn: clean up conn->err threading issues" by adding
709 error return value to struct api_msg_msg
711 2010-01-17: Simon Goldschmidt
712 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
713 to return err_t (bugs #27709 and #28087)
715 2010-01-14: Simon Goldschmidt
716 * ...: Use typedef for function prototypes throughout the stack.
718 2010-01-13: Simon Goldschmidt
719 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
720 window = 0) by correctly draining recvmbox/acceptmbox
722 2010-01-11: Simon Goldschmidt
723 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
724 erroneous callbacks) by copying the code from recent pppd
726 2010-01-10: Simon Goldschmidt
727 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
729 2010-01-10: Simon Goldschmidt
730 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
732 2010-01-08: Simon Goldschmidt
733 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
735 2010-01-08: Simon Goldschmidt
736 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
737 passed to dns_local_addhost() might be volatile
739 2010-01-07: Simon Goldschmidt
740 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
742 2010-01-06: Simon Goldschmidt
743 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
745 2009-12-31: Simon Goldschmidt
746 * many ppp files: Reorganised PPP source code from ucip structure to pppd
747 structure to easily compare our code against the pppd code (around v2.3.1)
749 2009-12-27: Simon Goldschmidt
750 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
758 2009-10-27 Simon Goldschmidt/Stephan Lesage
759 * netifapi.c/.h: Added netifapi_netif_set_addr()
761 2009-10-07 Simon Goldschmidt/Fabian Koch
762 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
763 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
765 2009-08-26 Simon Goldschmidt/Simon Kallweit
766 * slipif.c/.h: bug #26397: SLIP polling support
768 2009-08-25 Simon Goldschmidt
769 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
770 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
772 2009-08-25 Simon Goldschmidt
773 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
775 2009-08-24 Jakob Stoklund Olesen
776 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
777 to netif_set_link_up().
779 2009-08-23 Simon Goldschmidt
780 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
781 to a human-readable string.
785 2009-12-24: Kieran Mansley
786 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
789 2009-12-06: Simon Goldschmidt
790 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
791 be statically allocated (like in ucip)
793 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
794 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
796 2009-12-03: Simon Goldschmidt
797 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
798 could have non-zero length
800 2009-12-02: Simon Goldschmidt
801 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
802 tcp_input_pcb until after calling the pcb's callbacks
804 2009-11-29: Simon Goldschmidt
805 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
806 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
808 2009-11-29: Simon Goldschmidt
809 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
810 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
812 2009-11-26: Simon Goldschmidt
813 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
816 2009-11-26: Simon Goldschmidt
817 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
818 algorithm at PCB level
820 2009-11-22: Simon Goldschmidt
821 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
823 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
824 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
825 reusing time-wait pcb
827 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
828 * sockets.c: Fixed bug #28062: Data received directly after accepting
829 does not wake up select
831 2009-11-11: Simon Goldschmidt
832 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
834 2009-10-30: Simon Goldschmidt
835 * opt.h: Increased default value for TCP_MSS to 536, updated default
836 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
838 2009-10-28: Kieran Mansley
839 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
840 to follow algorithm from TCP/IP Illustrated
842 2009-10-27: Kieran Mansley
843 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
845 2009-10-25: Simon Goldschmidt
846 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
847 pcb->recv is NULL to keep rcv_wnd correct)
849 2009-10-25: Simon Goldschmidt
850 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
852 2009-10-23: Simon Goldschmidt (David Empson)
853 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
855 2009-10-21: Simon Goldschmidt
856 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
857 trailing 1 byte len (SYN/FIN)
859 2009-10-21: Simon Goldschmidt
860 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
862 2009-10-19: Simon Goldschmidt
863 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
864 conditional code to assert where applicable), check pbuf length before
865 testing for valid reply
867 2009-10-19: Simon Goldschmidt
868 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
869 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
871 2009-10-16: Simon Goldschmidt
872 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
873 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
876 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
877 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
879 2009-10-15: Simon Goldschmidt
880 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
883 2009-10-15: Simon Goldschmidt
884 * autoip.c: Fixed bug #27704: autoip starts with wrong address
885 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
886 of network byte order
888 2009-10-11 Simon Goldschmidt (Jörg Kesten)
889 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
890 which are not consecutive when retransmitting unacked segments
892 2009-10-09 Simon Goldschmidt
893 * opt.h: Fixed default values of some stats to only be enabled if used
894 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
896 2009-08-30 Simon Goldschmidt
897 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
898 function" by checking for loopback before calling ip_frag
900 2009-08-25 Simon Goldschmidt
901 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
903 2009-08-23 Simon Goldschmidt
904 * ppp.c: bug #27078: Possible memory leak in pppInit()
906 2009-08-23 Simon Goldschmidt
907 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
910 2009-08-23 Simon Goldschmidt
911 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
912 Fixed wrong parenthesis, added check in init.c
914 2009-08-23 Simon Goldschmidt
915 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
917 2009-08-23 Simon Goldschmidt
918 * many ppp files: bug #27267: Added include to string.h where needed
920 2009-08-23 Simon Goldschmidt
921 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
928 2009-05-10 Simon Goldschmidt
929 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
930 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
931 one pbuf to help MACs that don't support scatter-gather DMA.
933 2009-05-09 Simon Goldschmidt
934 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
935 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
937 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
938 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
939 extended info about the currently received packet.
941 2009-04-27 Simon Goldschmidt
942 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
944 2009-04-25 Simon Goldschmidt
945 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
946 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
948 2009-04-21 Simon Goldschmidt
949 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
950 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
951 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
952 as an external function for lookup.
954 2009-04-15 Simon Goldschmidt
955 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
957 2009-03-31 Kieran Mansley
958 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
959 TCP timestamp options, off by default. Rework tcp_enqueue() to
960 take option flags rather than specified option data
962 2009-02-18 Simon Goldschmidt
963 * cc.h: Added printf formatter for size_t: SZT_F
965 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
966 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
969 2009-02-12 Simon Goldschmidt
970 * init.h: Added LWIP_VERSION to get the current version of the stack
972 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
973 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
974 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
977 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
978 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
979 is only used by UDPLITE at present, so conditionalise it.
981 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
982 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
983 "seed" address. This should reduce AUTOIP conflicts if
984 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
986 2008-10-02 Jonathan Larmour and Rishi Khan
987 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
990 2008-06-30 Simon Goldschmidt
991 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
992 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
993 mem_free to run between mem_malloc iterations. Added illegal counter for
996 2008-06-27 Simon Goldschmidt
997 * stats.h/.c, some other files: patch #6483: stats module improvement:
998 Added defines to display each module's statistic individually, added stats
999 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1001 2008-06-17 Simon Goldschmidt
1002 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1003 (define LWIP_ERR_T in cc.h)
1005 2008-06-17 Simon Goldschmidt
1006 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1009 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1010 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1011 modified version of patch # 6370: Moved loopif code to netif.c so that
1012 loopback traffic is supported on all netifs (all local IPs).
1013 Added option to limit loopback packets for each netifs.
1017 2009-08-12 Kieran Mansley
1018 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1019 out of window or out of order properly
1021 2009-08-12 Kieran Mansley
1022 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1024 2009-07-28 Simon Goldschmidt
1025 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1027 2009-07-27 Kieran Mansley
1028 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1030 2009-07-09 Kieran Mansley
1031 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1032 recv_avail and don't increment counters until message successfully
1035 2009-06-25 Kieran Mansley
1036 * api_msg.c api.h: BUG26722: initialise netconn write variables
1039 2009-06-25 Kieran Mansley
1040 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1042 2009-06-25 Kieran Mansley
1043 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1044 simultaneous close behaviour, and make snd_nxt have the same meaning
1047 2009-05-12 Simon Goldschmidt
1048 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1049 arp_table / uses etharp_query" by adding etharp_gratuitous()
1051 2009-05-12 Simon Goldschmidt
1052 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1053 to the IP header (used by igmp_ip_output_if)
1055 2009-05-06 Simon Goldschmidt
1056 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1057 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1059 2009-05-05 Simon Goldschmidt
1060 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1063 2009-05-04 Simon Goldschmidt
1064 * init.c: snmp was not initialized in lwip_init()
1066 2009-05-04 Frédéric Bernon
1067 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1069 2009-05-03 Simon Goldschmidt
1070 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1071 (and unsent->next == NULL)
1073 2009-05-02 Simon Goldschmidt
1074 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1075 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1077 2009-05-02 Simon Goldschmidt
1078 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1080 2009-05-01 Simon Goldschmidt
1081 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1083 2009-05-01 Simon Goldschmidt
1084 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1086 2009-04-29 Frédéric Bernon
1087 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1088 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1089 of broadcast packets even when this option wasn't set. Port maintainers
1090 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1091 If you want this option also filter broadcast on recv operations, you also
1092 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1094 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1095 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1096 DHCP/AUTOIP cooperation
1098 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1099 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1100 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1101 right place in tcp_output and tcp_rexmit).
1103 2009-04-25 Simon Goldschmidt
1104 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1105 when debugging": memp_sizes contained the wrong sizes (including sanity
1106 regions); memp pools for MEM_USE_POOLS were too small
1108 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1109 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1110 behavior, with with ip address string not ended by a '\0', a space or a
1113 2009-04-19 Simon Goldschmidt
1114 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1115 pcb->err is called, not pcb->connected (with an error code).
1117 2009-04-19 Simon Goldschmidt
1118 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1119 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1121 2009-04-19 Simon Goldschmidt
1122 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1123 in the header pbuf, not the data pbuf)
1125 2009-04-18 Simon Goldschmidt
1126 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1128 2009-04-15 Simon Goldschmidt
1129 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1131 2009-04-15 Simon Goldschmidt
1132 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1134 2009-04-15 Simon Goldschmidt
1135 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1136 ip_hinted_output() (for smaller code mainly)
1138 2009-04-15 Simon Goldschmidt
1139 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1141 2009-04-15 Simon Goldschmidt
1142 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1143 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1144 is big enough in dhcp_start
1146 2009-04-15 Simon Goldschmidt
1147 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1149 2009-04-15 Simon Goldschmidt
1150 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1152 2009-04-15 Simon Goldschmidt
1153 * sockets.c: bug #26121: set_errno can be overridden
1155 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1156 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1159 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1160 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1163 2009-03-31 Kieran Mansley
1164 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1165 updates are calculated and sent (BUG20515)
1167 * tcp_in.c: cope with SYN packets received during established states,
1168 and retransmission of initial SYN.
1170 * tcp_out.c: set push bit correctly when tcp segments are merged
1172 2009-03-27 Kieran Mansley
1173 * tcp_out.c set window correctly on probes (correcting change made
1176 2009-03-26 Kieran Mansley
1177 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1178 connections where no reset required (bug #25622)
1180 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1183 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1184 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1185 too small depending on MEM_ALIGNMENT
1187 2009-02-16 Simon Goldschmidt
1188 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1189 converted size argument of netconn_write to 'size_t'
1191 2009-02-16 Simon Goldschmidt
1192 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1193 by moving accept callback function pointer to TCP_PCB_COMMON
1195 2009-02-12 Simon Goldschmidt
1196 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1199 2009-02-11 Simon Goldschmidt
1200 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1202 2009-02-11 Simon Goldschmidt
1203 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1204 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1206 2009-02-10 Simon Goldschmidt
1207 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1208 Accepts_pending is decrease on a corresponding listen pcb when a connection
1209 in state SYN_RCVD is close.
1211 2009-01-28 Jonathan Larmour
1212 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1215 2008-12-19 Simon Goldschmidt
1216 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1218 2008-12-10 Tamas Somogyi, Frédéric Bernon
1219 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1220 port uses deleted netbuf.
1222 2008-10-18 Simon Goldschmidt
1223 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1226 2008-10-15 Simon Goldschmidt
1227 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1228 by packing the struct ip_reass_helper.
1230 2008-10-03 David Woodhouse, Jonathan Larmour
1231 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1233 2008-10-02 Jonathan Larmour
1234 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1235 padding is included.
1237 2008-09-30 Jonathan Larmour
1238 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1239 assertion check that addrlen isn't NULL.
1241 2008-09-30 Jonathan Larmour
1242 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1244 2008-08-26 Simon Goldschmidt
1245 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1246 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1248 2008-08-14 Simon Goldschmidt
1249 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1250 tcp_close returns != ERR_OK)
1252 2008-07-08 Frédéric Bernon
1253 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1254 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1256 2008-06-24 Jonathan Larmour
1257 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1258 if tcp_seg_copy fails.
1260 2008-06-17 Simon Goldschmidt
1261 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1262 and created defines for swapping bytes and folding u32 to u16.
1264 2008-05-30 Kieran Mansley
1265 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1266 rather than rcv_ann_wnd when deciding if packets are in-window.
1267 Contributed by <arasmussen@consultant.datasys.swri.edu>
1269 2008-05-30 Kieran Mansley
1270 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1271 passing as function pointers when MEM_LIBC_MALLOC is defined.
1273 2008-05-09 Jonathan Larmour
1274 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1275 stop it being treated as a fatal error.
1277 2008-04-15 Simon Goldschmidt
1278 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1281 2008-03-27 Simon Goldschmidt
1282 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1283 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1284 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1285 or heap memory from interrupt context
1287 2008-03-26 Simon Goldschmidt
1288 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1289 host sent a zero mss as TCP option.
1296 2008-03-10 Jonathan Larmour
1297 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1298 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1300 2008-01-22 Frédéric Bernon
1301 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1302 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1304 2008-01-14 Frédéric Bernon
1305 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1306 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1307 tcp_recv callback (see rawapi.txt).
1309 2008-01-14 Frédéric Bernon, Marc Chaland
1310 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1312 2008-01-12 Frédéric Bernon
1313 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1314 netconn::sem per netconn::op_completed like suggested for the task #7490
1315 "Add return value to sys_mbox_post".
1317 2008-01-12 Frédéric Bernon
1318 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1319 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1320 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1322 2008-01-10 Frédéric Bernon
1323 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1324 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1325 "blocking" ("block" parameter = 1).
1327 2008-01-10 Frédéric Bernon
1328 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1329 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1330 "Add return value to sys_mbox_post".
1332 2008-01-05 Frédéric Bernon
1333 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1334 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1335 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1336 indicate the number of pointers query by the mailbox. There is three defines
1337 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1338 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1339 parameter in your implementation, but to ignore it to keep the previous behavior.
1340 The new sys_mbox_trypost function return a value to know if the mailbox is
1341 full or if the message is posted. Take a look to sys_arch.txt for more details.
1342 This new function is used in tcpip_input (so, can be called in an interrupt
1343 context since the function is not blocking), and in recv_udp and recv_raw.
1345 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1346 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1347 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1348 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1349 documentation in the rawapi.txt file.
1351 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1352 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1354 2007-12-31 Frédéric Bernon, Luca Ceresoli
1355 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1356 in autoip". The change in etharp_raw could be removed, since all calls to
1357 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1358 wrong in the future.
1360 2007-12-30 Frédéric Bernon, Tom Evans
1361 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1362 Filtering" reported by Tom Evans.
1364 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1365 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1366 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1367 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1368 keep accepting new connections.
1370 2007-12-13 Frédéric Bernon
1371 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1372 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1374 2007-12-12 Frédéric Bernon
1375 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1376 are the one which have ram usage.
1378 2007-12-05 Frédéric Bernon
1379 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1380 set of variables (=0) or a local one (=1). In this last case, your port should
1381 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1382 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1384 2007-12-03 Simon Goldschmidt
1385 * ip.c: ip_input: check if a packet is for inp first before checking all other
1386 netifs on netif_list (speeds up packet receiving in most cases)
1388 2007-11-30 Simon Goldschmidt
1389 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1390 UDP: move a (connected) pcb selected for input to the front of the list of
1391 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1394 2007-11-28 Simon Goldschmidt
1395 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1397 2007-11-25 Simon Goldschmidt
1398 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1401 2007-11-24 Simon Goldschmidt
1402 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1403 to the new file netdb.c; included lwip_getaddrinfo.
1405 2007-11-21 Simon Goldschmidt
1406 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1407 based on the MTU of the netif used to send. Enabled by default. Disable by
1408 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1410 2007-11-19 Frédéric Bernon
1411 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1412 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1413 copy dns payload to parse the response), return an error if there is no place
1414 for a new query, and fix some minor problems.
1416 2007-11-16 Simon Goldschmidt
1417 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1418 removed files: core/inet.c, core/inet6.c
1419 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1420 inet and chksum part; changed includes in all lwIP files as appropriate
1422 2007-11-16 Simon Goldschmidt
1423 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1424 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1425 (gethostbyname/gethostbyname_r).
1427 2007-11-15 Jim Pettinato, Frédéric Bernon
1428 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1429 requests with RAW api interface. Initialization is done in lwip_init() with
1430 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1431 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1432 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1433 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1434 list with points to improve.
1436 2007-11-06 Simon Goldschmidt
1437 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1438 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1439 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1441 2007-11-06 Simon Goldschmidt
1442 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1443 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1444 implementation from netconn api applications.
1446 2007-11-03 Frédéric Bernon
1447 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1448 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1449 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1450 it. This is a first release which have to be improve for TCP. Note it used the
1451 netconn::recv_avail which need to be more "thread-safe" (note there is already
1452 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1454 2007-11-01 Frédéric Bernon, Marc Chaland
1455 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1456 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1457 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1458 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1459 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1461 2007-10-24 Frédéric Bernon
1462 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1463 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1464 some code (like we have talk in "patch #5919 : Create compile switch to remove
1465 select code"), but it could be done later.
1467 2007-10-08 Simon Goldschmidt
1468 * many files: Changed initialization: many init functions are not needed any
1469 more since we now rely on the compiler initializing global and static
1472 2007-10-06 Simon Goldschmidt
1473 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1474 to enqueue the received pbufs so that multiple packets can be reassembled
1475 simultaneously and no static reassembly buffer is needed.
1477 2007-10-05 Simon Goldschmidt
1478 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1479 all netifs (or ports) can use it.
1481 2007-10-05 Frédéric Bernon
1482 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1483 common function to reduce a little bit the footprint (for all functions using
1484 only the "netif" parameter).
1486 2007-10-03 Frédéric Bernon
1487 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1488 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1489 a little bit the footprint (for all functions using only the "netif" parameter).
1491 2007-09-15 Frédéric Bernon
1492 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1493 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1494 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1495 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1497 2007-09-10 Frédéric Bernon
1498 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1499 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1500 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1501 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1502 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1503 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1504 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1505 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1506 when it's queried (any direct call to "sysuptime" is changed by a call to
1507 snmp_get_sysuptime).
1509 2007-09-09 Frédéric Bernon, Bill Florac
1510 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1511 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1512 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1513 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1514 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1515 the next query message to receive the matching multicast streams).
1517 2007-09-08 Frédéric Bernon
1518 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1519 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1520 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1521 Enable to access to these fields with LWIP_TCP=0.
1523 2007-09-05 Frédéric Bernon
1524 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1525 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1526 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1527 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1528 help to reduce footprint, and to reduce "visibility" on the Internet.
1530 2007-09-05 Frédéric Bernon, Bill Florac
1531 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1532 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1533 parameters have to be provided: a task name, and a task stack size. For this
1534 one, since it's platform dependant, you could define the best one for you in
1535 your lwipopts.h. For port maintainers, you can just add these new parameters
1536 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1539 2007-09-05 Frédéric Bernon
1540 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1541 inside init.c for task #7142 "Sanity check user-configurable values".
1543 2007-09-04 Frédéric Bernon, Bill Florac
1544 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1545 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1546 value). It will avoid potential fragmentation problems, use a counter to know
1547 how many times a group is used on an netif, and free it when all applications
1548 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1549 check if LWIP_IGMP!=0).
1551 2007-09-03 Frédéric Bernon
1552 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1553 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1554 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1555 and/or the "interface" field (for netconn layer), for join/leave operations.
1556 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1557 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1559 2007-08-30 Frédéric Bernon
1560 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1561 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1562 with other API (application based on raw API, or future "socket2" API). Ports
1563 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1565 2007-08-30 Frédéric Bernon, Jonathan Larmour
1566 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1567 user-configurable values".
1569 2007-08-29 Frédéric Bernon
1570 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1571 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1572 spirit than the others modules. Modify some IGMP debug traces.
1574 2007-08-29 Frédéric Bernon
1575 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1576 Add lwip_init function to regroup all modules initializations, and to provide
1577 a place to add code for task #7142 "Sanity check user-configurable values".
1578 Ports maintainers should remove direct initializations calls from their code,
1579 and add init.c in their makefiles. Note that lwip_init() function is called
1580 inside tcpip_init, but can also be used by raw api users since all calls are
1581 disabled when matching options are disabled. Also note that their is new options
1582 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1584 2007-08-26 Marc Boucher
1585 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1586 since they can under certain circumstances be called with an invalid conn
1587 pointer after the connection has been closed (and conn has been freed).
1589 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1590 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1591 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1593 2007-08-22 Frédéric Bernon
1594 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1595 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1597 2007-08-22 Frédéric Bernon
1598 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1599 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1600 name is tcpip_input (we keep the name of 1.2.0 function).
1602 2007-08-17 Jared Grubb
1603 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1604 settings into new memp_std.h and optional user file lwippools.h. This adds
1605 more dynamic mempools, and allows the user to create an arbitrary number of
1606 mempools for mem_malloc.
1608 2007-08-16 Marc Boucher
1609 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1610 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1611 close the connection.
1613 2007-08-16 Marc Boucher
1614 * sockets.c: lwip_accept(): check netconn_peer() error return.
1616 2007-08-16 Marc Boucher
1617 * mem.c, mem.h: Added mem_calloc().
1619 2007-08-16 Marc Boucher
1620 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1621 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1622 and starving other message types.
1623 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1625 2007-08-16 Marc Boucher
1626 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1627 type and flgs (later renamed to flags).
1628 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1629 Improved lwip_recvfrom(). TCP push now propagated.
1631 2007-08-16 Marc Boucher
1632 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1635 2007-08-16 Marc Boucher
1636 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1637 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1638 Added PPPoE support and various PPP improvements.
1640 2007-07-25 Simon Goldschmidt
1641 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1642 making netbuf_copy_partial use this function.
1644 2007-07-25 Simon Goldschmidt
1645 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1646 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1649 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1650 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1651 a link callback in the netif struct, and functions to handle it. Be carefull
1652 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1653 if you want to be sure to be compatible with future changes...
1655 2007-06-30 Frédéric Bernon
1656 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1658 2007-06-21 Simon Goldschmidt
1659 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1660 LWIP_AUTOIP =0 and =1 to remove redundant code.
1662 2007-06-21 Simon Goldschmidt
1663 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1664 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1665 heap. This both prevents memory fragmentation and gives a higher speed
1666 at the cost of more memory consumption. Turned off by default.
1668 2007-06-21 Simon Goldschmidt
1669 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1670 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1671 int to be able to send a bigger buffer than 64K with one time (mainly
1672 used from lwip_send).
1674 2007-06-21 Simon Goldschmidt
1675 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1676 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1678 2007-06-21 Simon Goldschmidt
1679 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1680 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1681 changes on low memory or empty send-buffer.
1683 2007-06-18 Simon Goldschmidt
1684 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1685 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1686 used for ethernet and struct eth_addr already had a defined length of 6).
1688 2007-06-17 Simon Goldschmidt
1689 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1690 to disable UDP checksum generation on transmit.
1692 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1693 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1694 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1695 this macro to check "conn" parameter in api_msg.c functions.
1697 2007-06-11 Simon Goldschmidt
1698 * sockets.c, sockets.h: Added UDP lite support for sockets
1700 2007-06-10 Simon Goldschmidt
1701 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1702 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1705 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1706 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1707 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1708 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1709 (see TODO mark in the source code).
1711 2007-06-09 Simon Goldschmidt
1712 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1713 etharp_output() to match netif->output so etharp_output() can be used
1714 directly as netif->output to save one function call.
1716 2007-06-08 Simon Goldschmidt
1717 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1718 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1719 added initialization of those to ethernetif, slipif and loopif.
1721 2007-05-18 Simon Goldschmidt
1722 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1723 (defaulting to off for now) that can be set to 0 to send fragmented
1724 packets by passing PBUF_REFs down the stack.
1726 2007-05-23 Frédéric Bernon
1727 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1728 connections, such present in patch #5959.
1730 2007-05-23 Frédéric Bernon
1731 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1732 code in only one part...
1734 2007-05-18 Simon Goldschmidt
1735 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1736 elements to overflow. This is achieved by adding some bytes before and after
1737 each pool element (increasing their size, of course), filling them with a
1738 prominent value and checking them on freeing the element.
1739 Set it to 2 to also check every element in every pool each time memp_malloc()
1740 or memp_free() is called (slower but more helpful).
1742 2007-05-10 Simon Goldschmidt
1743 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1744 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1747 2007-05-11 Frédéric Bernon
1748 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1749 Include a function pointer instead of a table index in the message to reduce
1750 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1751 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1753 2007-05-10 Simon Goldschmidt
1754 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1755 \ extern "C" {' in all header files. Now you can write your application using
1756 the lwIP stack in C++ and simply #include the core files. Note I have left
1757 out the netif/ppp/*h header files for now, since I don't know which files are
1758 included by applications and which are for internal use only.
1760 2007-05-09 Simon Goldschmidt
1761 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1762 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1763 situations where some compilers might inline the copy and save a function
1764 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1766 2007-05-08 Simon Goldschmidt
1767 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1768 to be overriden in case the C-library malloc implementation is not protected
1769 against concurrent access.
1771 2007-05-04 Simon Goldschmidt (Atte Kojo)
1772 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1773 multiple packets to the same host.
1775 2007-05-04 Frédéric Bernon, Jonathan Larmour
1776 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1777 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1778 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1779 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1780 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1781 these fields are now renamed "addr" & "port".
1783 2007-04-11 Jonathan Larmour
1784 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1785 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1786 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1787 by the port in sys_arch.h if desired.
1789 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1790 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1791 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1792 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1794 2007-04-05 Frédéric Bernon
1795 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1797 2007-04-04 Simon Goldschmidt
1798 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1799 use this for and architecture-independent form to tell the compiler you intentionally
1800 are not using this variable. Can be overriden in cc.h.
1802 2007-03-28 Frédéric Bernon
1803 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1804 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1805 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1806 It will be used by DHCP to register a client hostname, but can also be use when you call
1809 2007-03-28 Frédéric Bernon
1810 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1811 initialize a network interface's flag with. It tell this interface is an ethernet
1812 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1813 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1815 2007-03-26 Frédéric Bernon, Jonathan Larmour
1816 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1817 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1818 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1819 is done in tcpip_init function.
1821 2007-03-22 Frédéric Bernon
1822 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1823 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1824 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1825 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1826 but never used. Fix msg_in.c with the correct #if test for a stat display.
1828 2007-03-21 Kieran Mansley
1829 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1830 Provides callback on netif up/down state change.
1832 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1833 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1834 ip.c, netif.h, tcpip.c, opt.h:
1835 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1836 filter per all network interfaces. Declare a new function in netif to enable to
1837 control the MAC filter (to reduce lwIP traffic processing).
1839 2007-03-11 Frédéric Bernon
1840 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1841 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1842 unless you know what you're doing (default are RFC1122 compliant). Note
1843 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1845 2007-03-08 Frédéric Bernon
1846 * tcp.h: Keepalive values can be configured at compile time, but don't change
1847 this unless you know what you're doing (default are RFC1122 compliant).
1849 2007-03-08 Frédéric Bernon
1850 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1851 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1852 on UDP sockets/netconn.
1854 2007-03-08 Simon Goldschmidt
1855 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1857 2007-03-06 Frédéric Bernon
1858 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1859 Implement SO_RCVTIMEO on UDP sockets/netconn.
1861 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1862 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1863 on the stack and remove the API msg type from memp
1865 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1866 * sockets.h, sockets.c: Move socket initialization to new
1867 lwip_socket_init() function.
1868 NOTE: this changes the API with ports. Ports will have to be
1869 updated to call lwip_socket_init() now.
1871 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1872 * api_lib.c: Use memcpy in netbuf_copy_partial.
1877 2008-03-17 Frédéric Bernon, Ed Kerekes
1878 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1879 some problems to fill the IP header on some targets, use now the
1880 ip.h macros to do it).
1882 2008-03-13 Frédéric Bernon
1883 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1884 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1885 TCP connection caused a crash. Note that using (lwip_)recvfrom
1886 like this is a bit slow and that using (lwip)getpeername is the
1887 good lwip way to do it (so, using recv is faster on tcp sockets).
1889 2008-03-12 Frédéric Bernon, Jonathan Larmour
1890 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1891 recv_raw() does not consume data", and the ping sample (with
1892 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1893 returned the IP payload, without the IP header).
1895 2008-03-04 Jonathan Larmour
1896 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1897 and/or warnings on some systems where mem_size_t and size_t differ.
1898 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1900 2008-03-04 Kieran Mansley (contributions by others)
1901 * Numerous small compiler error/warning fixes from contributions to
1902 mailing list after 1.3.0 release candidate made.
1904 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1905 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1907 2008-01-15 Kieran Mansley
1908 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1909 prevented from sending by a small send window, not just a zero
1912 2008-01-09 Jonathan Larmour
1913 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1914 conflict with Linux system headers.
1916 2008-01-06 Jonathan Larmour
1917 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1918 address entirely on receiving a DHCPNAK, and restarting discovery.
1920 2007-12-21 Simon Goldschmidt
1921 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1922 is not protected" by using new macros for interlocked access to modify/test
1923 netconn->recv_avail.
1925 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1926 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1928 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1929 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1930 of silly window avoidance and prevent lwIP from shrinking the window)
1932 2007-12-04 Simon Goldschmidt
1933 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1934 data packet was lost): add assert that all segment lists are empty in
1935 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1936 state from LAST_ACK in tcp_process
1938 2007-12-02 Simon Goldschmidt
1939 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1940 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1941 has to be set to 0 in lwipopts.h
1943 2007-12-02 Simon Goldschmidt
1944 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1945 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1946 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1947 This is a fix for thread-safety and allocates all items needed for a netconn
1948 when the netconn is created.
1950 2007-11-30 Simon Goldschmidt
1951 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1952 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1953 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1954 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1956 2007-11-27 Simon Goldschmidt
1957 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1958 letting ip_route only use netifs that are up.
1960 2007-11-27 Simon Goldschmidt
1961 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1962 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1963 sockets block most operations once they have seen a fatal error.
1965 2007-11-27 Simon Goldschmidt
1966 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1967 netif to send as an argument (to be able to send on netifs that are down).
1969 2007-11-26 Simon Goldschmidt
1970 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1973 2007-11-21 Simon Goldschmidt
1974 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1975 Fixed the nagle algorithm; nagle now also works for all raw API applications
1976 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1978 2007-11-12 Frédéric Bernon
1979 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1980 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1981 context in do_getaddr.
1983 2007-11-10 Simon Goldschmidt
1984 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1985 happen any time). Now the packet simply isn't enqueued when out of memory.
1987 2007-11-01 Simon Goldschmidt
1988 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1989 TCP_MSS if that is smaller) as long as no MSS option is received from the
1992 2007-11-01 Simon Goldschmidt
1993 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1994 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1995 sending our configured TCP_MSS instead of the one received).
1997 2007-11-01 Simon Goldschmidt
1998 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1999 calculated based on the configured TCP_MSS, not on the MSS option received
2002 2007-10-09 Simon Goldschmidt
2003 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2004 short and also was generated wrong if checksum coverage != tot_len;
2005 receive: checksum was calculated wrong if checksum coverage != tot_len
2007 2007-10-08 Simon Goldschmidt
2008 * mem.c: lfree was not updated in mem_realloc!
2010 2007-10-07 Frédéric Bernon
2011 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2012 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2013 this change cause an API breakage for netconn_addr, since a parameter
2014 type change. Any compiler should cause an error without any changes in
2015 yours netconn_peer calls (so, it can't be a "silent change"). It also
2016 reduce a little bit the footprint for socket layer (lwip_getpeername &
2017 lwip_getsockname use now a common lwip_getaddrname function since
2018 netconn_peer & netconn_addr have the same parameters).
2020 2007-09-20 Simon Goldschmidt
2021 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2022 by checking tcp_tw_pcbs also
2024 2007-09-19 Simon Goldschmidt
2025 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2027 2007-09-15 Mike Kleshov
2028 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2030 2007-09-06 Frédéric Bernon
2031 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2032 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2033 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2034 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2036 2007-08-30 Frédéric Bernon
2037 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2038 and fix some coding style.
2040 2007-08-28 Frédéric Bernon
2041 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2042 kind of packets. These packets are considered like Ethernet packets (payload
2043 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2044 are considered like IP packets (payload pointing to iphdr).
2046 2007-08-27 Frédéric Bernon
2047 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2048 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2049 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2051 2007-08-24 Kieran Mansley
2052 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2053 compiler (Paradigm C++)
2055 2007-08-09 Frédéric Bernon, Bill Florac
2056 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2057 Introduce IGMP_STATS to centralize statistics management.
2059 2007-08-09 Frédéric Bernon, Bill Florac
2060 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2061 packet on a udp pcb binded on an netif's IP address, and not on "any".
2063 2007-08-09 Frédéric Bernon, Bill Florac
2064 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2065 This is mainly on using lookup/lookfor, and some coding styles...
2067 2007-07-26 Frédéric Bernon (and "thedoctor")
2068 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2070 2007-07-25 Simon Goldschmidt
2071 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2072 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2073 (tcp_output is called again later from tcp timers).
2075 2007-07-25 Simon Goldschmidt
2076 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2077 copy_from_pbuf, which illegally modified the given pbuf.
2079 2007-07-25 Simon Goldschmidt
2080 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2081 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2083 2007-07-24 Simon Goldschmidt
2084 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2085 correct state (must be CLOSED).
2087 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2088 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2089 allocation. It now returns NULL.
2091 2007-07-13 Frédéric Bernon
2092 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2095 2007-07-13 Frédéric Bernon
2096 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2097 because current code doesn't follow rawapi.txt documentation.
2099 2007-07-13 Kieran Mansley
2100 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2101 out of sequence processing of received packets
2103 2007-07-03 Simon Goldschmidt
2104 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2105 assumption is made that this pbuf is in one piece (i.e. not chained). These
2106 assumptions clash with the possibility of converting to fully pool-based
2107 pbuf implementations, where PBUF_RAM pbufs might be chained.
2109 2007-07-03 Simon Goldschmidt
2110 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2111 when closing tcp netconns: removed conn->sem, less context switches when
2112 closing, both netconn_close and netconn_delete should safely close tcp
2115 2007-07-02 Simon Goldschmidt
2116 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2117 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2118 to cache ARP table indices with each pcb instead of single-entry cache for
2121 2007-07-02 Simon Goldschmidt
2122 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2123 warnings when assigning to smaller types.
2125 2007-06-28 Simon Goldschmidt
2126 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2128 2007-06-28 Simon Goldschmidt
2129 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2130 a segment contained chained pbufs)
2132 2007-06-28 Frédéric Bernon
2133 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2134 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2135 possible to define this macro in your own lwipopts.h to always use C library's
2136 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2138 2007-06-28 Frédéric Bernon
2139 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2140 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2141 in api_lib/api_msg (use pointers and not type with table, etc...)
2143 2007-06-26 Simon Goldschmidt
2144 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2146 2007-06-25 Simon Goldschmidt
2147 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2148 for udp packets with no matching pcb.
2150 2007-06-25 Simon Goldschmidt
2151 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2152 could get udp input packets if the remote side matched.
2154 2007-06-13 Simon Goldschmidt
2155 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2156 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2158 2007-06-13 Simon Goldschmidt
2159 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2160 -> netconn_new_..() does not allocate a new connection for unsupported
2163 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2164 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2165 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2167 2007-06-13 Frédéric Bernon, Matthias Weisser
2168 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2169 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2170 some macro names collision with some OS macros.
2172 2007-06-11 Simon Goldschmidt
2173 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2174 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2175 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2178 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2179 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2180 where TCP flags wasn't initialized in tcp_keepalive.
2182 2007-06-03 Simon Goldschmidt
2183 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2184 registered, p->payload was modified without modifying p->len if sending
2185 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2187 2007-06-03 Simon Goldschmidt
2188 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2189 re-used the input pbuf even if that didn't have enough space to include the
2190 link headers. Now the space is tested and a new pbuf is allocated for the
2191 echo response packet if the echo request pbuf isn't big enough.
2193 2007-06-01 Simon Goldschmidt
2194 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2196 2007-05-23 Frédéric Bernon
2197 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2198 allocated by do_listen if success) and netconn_accept errors handling. In
2199 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2200 by ASSERT, except for netconn_delete.
2202 2007-05-23 Frédéric Bernon
2203 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2204 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2205 directly close the recvmbox).
2207 2007-05-22 Simon Goldschmidt
2208 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2209 bound but unconnected (and non-listening) tcp_pcbs.
2211 2007-05-22 Frédéric Bernon
2212 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2213 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2214 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2215 like "sys_timeout" in their application threads.
2217 2007-05-22 Frédéric Bernon
2218 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2219 which parameters are used by which do_xxx function, and to avoid "misusing"
2220 parameters (patch #5938).
2222 2007-05-22 Simon Goldschmidt
2223 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2224 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2225 is only 8 bits wide. This affects the api, as there, the protocol was
2228 2007-05-18 Simon Goldschmidt
2229 * memp.c: addition to patch #5913: smaller pointer was returned but
2230 memp_memory was the same size -> did not save memory.
2232 2007-05-16 Simon Goldschmidt
2233 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2236 2007-05-16 Simon Goldschmidt
2237 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2238 as the one of the netif used for sending to prevent sending from old
2239 addresses after a netif address gets changed (partly fixes bug #3168).
2241 2007-05-16 Frédéric Bernon
2242 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2243 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2244 tcpip_init) because we have to be sure that network interfaces are already
2245 added (mac filter is updated only in igmp_init for the moment).
2247 2007-05-16 Simon Goldschmidt
2248 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2249 into sys_arch_sem_wait calls to prevent timers from running while waiting
2250 for the heap. This fixes bug #19167.
2252 2007-05-13 Simon Goldschmidt
2253 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2254 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2257 2007-05-07 Simon Goldschmidt
2258 * mem.c: Another attempt to fix bug #17922.
2260 2007-05-04 Simon Goldschmidt
2261 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2262 implementation so that it can be reused (don't allocate the target
2263 pbuf inside pbuf_copy()).
2265 2007-05-04 Simon Goldschmidt
2266 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2267 to save a little RAM (next pointer of memp is not used while not in pool).
2270 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2273 2007-04-23 Simon Goldschmidt
2274 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2275 in NULL reference for incoming TCP packets". Loopif has to be configured
2276 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2277 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2278 putting packets on a list that is fed to the stack by calling loopif_poll()
2279 (single-thread / NO_SYS / polling environment where e.g.
2280 netif->input() = ip_input).
2282 2007-04-17 Jonathan Larmour
2283 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2284 the difference between two u16_t's.
2285 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2286 MEMP_NUM_NETCONN in sockets.c right now.
2288 2007-04-12 Jonathan Larmour
2289 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2291 2007-04-12 Kieran Mansley
2292 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2293 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2295 2007-04-11 Simon Goldschmidt
2296 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2297 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2298 pbuf.c: removed functions no needed any more (by etharp).
2300 2007-04-11 Kieran Mansley
2301 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2302 "Constant is long" warnings with 16bit compilers. Contributed by
2303 avatar@mmlab.cse.yzu.edu.tw
2305 2007-04-05 Frédéric Bernon, Jonathan Larmour
2306 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2307 the mailbox is active". Now, the post is only done during a connect, and do_send,
2308 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2310 2007-04-03 Frédéric Bernon
2311 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2312 packets. See patch #5834.
2314 2007-03-30 Frédéric Bernon
2315 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2316 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2318 2007-03-30 Frédéric Bernon
2319 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2320 others environment defines (these were too "generic").
2322 2007-03-28 Frédéric Bernon
2323 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2324 result and can cause a crash. lwip_send now check netbuf_ref result.
2326 2007-03-28 Simon Goldschmidt
2327 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2328 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2329 defined. This is the way it should have been already (looking at
2332 2007-03-28 Kieran Mansley
2333 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2334 IP and TCP headers *and* physical link headers
2336 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2337 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2338 to send some garbage. It is not a definitive solution, but the patch does solve
2339 the problem for most cases.
2341 2007-03-22 Frédéric Bernon
2342 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2344 2007-03-22 Frédéric Bernon
2345 * api_lib.c: somes resources couldn't be freed if there was errors during
2346 netconn_new_with_proto_and_callback.
2348 2007-03-22 Frédéric Bernon
2349 * ethernetif.c: update netif->input calls to check return value. In older ports,
2350 it's a good idea to upgrade them, even if before, there could be another problem
2351 (access to an uninitialized mailbox).
2353 2007-03-21 Simon Goldschmidt
2354 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2355 by casting to unsigned).
2357 2007-03-21 Frédéric Bernon
2358 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2359 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2360 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2361 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2362 faster and more reliable communication between api_lib and tcpip.
2364 2007-03-21 Frédéric Bernon
2365 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2367 2007-03-21 Frédéric Bernon
2368 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2370 2007-03-21 Kieran Mansley
2371 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2374 2007-03-21 Kieran Mansley
2375 * Fix all uses of pbuf_header to check the return value. In some
2376 cases just assert if it fails as I'm not sure how to fix them, but
2377 this is no worse than before when they would carry on regardless
2380 2007-03-21 Kieran Mansley
2381 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2382 comment out missing header include in icmp.c
2384 2007-03-20 Frédéric Bernon
2385 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2386 synchronized with memp.h.
2388 2007-03-20 Frédéric Bernon
2389 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2390 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2391 network interfaces. Also fix a compiler warning.
2393 2007-03-20 Kieran Mansley
2394 * udp.c: Only try and use pbuf_header() to make space for headers if
2395 not a ROM or REF pbuf.
2397 2007-03-19 Frédéric Bernon
2398 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2401 2007-03-19 Frédéric Bernon
2402 * Remove unimplemented "memp_realloc" function from memp.h.
2404 2007-03-11 Simon Goldschmidt
2405 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2408 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2409 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2410 (missing `const' qualifier in socket functions), to get more compatible to
2411 standard POSIX sockets.
2413 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2414 * sockets.c: Add asserts inside bind, connect and sendto to check input
2415 parameters. Remove excessive set_errno() calls after get_socket(), because
2416 errno is set inside of get_socket(). Move last sock_set_errno() inside
2419 2007-03-09 Simon Goldschmidt
2420 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2421 was allocated too small.
2423 2007-03-06 Simon Goldschmidt
2424 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2425 the stack from concurrent access.
2427 2007-03-06 Frédéric Bernon, Dmitry Potapov
2428 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2429 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2431 2007-03-06 Simon Goldschmidt
2432 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2433 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2435 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2436 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2437 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2438 Allow to do ARP processing for incoming packets inside tcpip_thread
2439 (protecting ARP layer against concurrent access). You can also disable
2440 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2441 Older ports have to use tcpip_ethinput.
2443 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2444 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2445 from pointer target type"
2447 2007-03-05 Frédéric Bernon
2448 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2449 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2451 2007-03-04 Frédéric Bernon
2452 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2455 2007-03-04 Frédéric Bernon
2456 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2458 The api_msg struct stay on the stack (not moved to netconn struct).
2460 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2461 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2462 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2463 Also fixed cast warning in pbuf_alloc()
2465 2007-03-04 Simon Goldschmidt
2466 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2467 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2469 2007-03-03 Frédéric Bernon
2470 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2471 It is static, and never used in udp.c except udp_init().
2473 2007-03-02 Simon Goldschmidt
2474 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2475 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2476 initialized before tcpip_thread is running (e.g. before OS is started)
2478 2007-03-02 Frédéric Bernon
2479 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2482 2007-02-28 Kieran Mansley
2483 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2484 outside the region of the pbuf by pbuf_header()
2486 2007-02-28 Kieran Mansley
2487 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2488 when supplied timeout is also non-zero
2492 2006-12-05 Leon Woestenberg
2493 * CHANGELOG: Mention STABLE-1.2.0 release.
2497 2006-12-01 Christiaan Simons
2498 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2499 Note this is a workaround. Currently I have no other options left.
2501 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2502 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2503 to include/lwip/opt.h.
2504 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2505 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2506 * opt.h: Add above new options.
2508 2006-08-18 Christiaan Simons
2509 * tcp_{in,out}.c: added SNMP counters.
2510 * ipv4/ip.c: added SNMP counters.
2511 * ipv4/ip_frag.c: added SNMP counters.
2513 2006-08-08 Christiaan Simons
2514 * etharp.{c,h}: added etharp_find_addr() to read
2515 (stable) ethernet/IP address pair from ARP table
2517 2006-07-14 Christiaan Simons
2518 * mib_structs.c: added
2519 * include/lwip/snmp_structs.h: added
2520 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2522 2006-07-06 Christiaan Simons
2523 * snmp/asn1_{enc,dec}.c added
2525 * snmp/msg_{in,out}.c added
2526 * include/lwip/snmp_asn1.h added
2527 * include/lwip/snmp_msg.h added
2528 * doc/snmp_agent.txt added
2530 2006-03-29 Christiaan Simons
2531 * inet.c, inet.h: Added platform byteswap support.
2532 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2533 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2537 2006-11-30 Christiaan Simons
2538 * dhcp.c: Fixed false triggers of request_timeout.
2540 2006-11-28 Christiaan Simons
2541 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2543 2006-10-11 Christiaan Simons
2544 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2545 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2546 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2547 identifier from 170 to 136 (bug #17574).
2549 2006-10-10 Christiaan Simons
2550 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2552 2006-08-17 Christiaan Simons
2553 * udp.c: Fixed bug #17200, added check for broadcast
2554 destinations for PCBs bound to a unicast address.
2556 2006-08-07 Christiaan Simons
2557 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2559 2006-06-27 Christiaan Simons
2560 * api_msg.c: Applied patch for cold case (bug #11135).
2561 In accept_function() ensure newconn->callback is always initialized.
2563 2006-06-15 Christiaan Simons
2564 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2565 facilitate printing of mem_size_t and u16_t statistics.
2567 2006-06-14 Christiaan Simons
2568 * api_msg.c: Applied patch #5146 to handle allocation failures
2569 in accept() by Kevin Lawson.
2571 2006-05-26 Christiaan Simons
2572 * api_lib.c: Removed conn->sem creation and destruction
2573 from netconn_write() and added sys_sem_new to netconn_new_*.
2577 2006-03-03 Christiaan Simons
2578 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2579 access and added pbuf_alloc() return value checks.
2581 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2582 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2583 now handled by the checksum routine properly.
2585 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2586 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2587 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2589 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2590 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2591 submitted by Mitrani Hiroshi.
2593 2005-12-15 Christiaan Simons
2594 * inet.c: Disabled the added summing routine to preserve code space.
2596 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2597 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2598 Added Curt McDowell's optimized checksumming routine for future
2599 inclusion. Need to create test case for unaliged, aligned, odd,
2600 even length combination of cases on various endianess machines.
2602 2005-12-09 Christiaan Simons
2603 * inet.c: Rewrote standard checksum routine in proper portable C.
2605 2005-11-25 Christiaan Simons
2606 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2607 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2608 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2610 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2611 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2612 routine by Peter Jolasson.
2613 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2615 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2616 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2617 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2619 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2620 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2622 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2623 * udp.c: UDP pcb->recv() was called even when it was NULL.
2627 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2628 * etharp.*: Disabled multiple packets on the ARP queue.
2629 This clashes with TCP queueing.
2631 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2632 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2633 Halved the ARP period, doubled the period counts.
2634 ETHARP_MAX_PENDING now should be at least 2. This prevents
2635 the counter from reaching 0 right away (which would allow
2636 too little time for ARP responses to be received).
2638 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2639 * dhcp.c: Decline messages were not multicast but unicast.
2640 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2641 Do not try hard to insert arbitrary packet's source address,
2642 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2643 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2644 querying an address will see it appear in the cache (DHCP could
2645 suffer from this when a server invalidly gave an in-use address.)
2646 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2647 comparing network addresses (identifiers), not the network masks
2649 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2650 IP address actually belongs to the network of the given interface.
2652 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2653 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2657 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2658 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2659 even if one is already pending, if the rcv_wnd is above a threshold
2660 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2661 delayed ACK in order to open the window if the stack is only receiving data.
2663 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2664 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2666 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2667 * etharp.c: Make sure the first pbuf queued on an ARP entry
2668 is properly ref counted.
2670 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2671 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2672 warnings about comparison.
2673 * pbuf.c: Stopped compiler complaining of empty if statement
2674 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2675 * tcp.c: Stopped compiler complaining of empty if statement
2676 when LWIP_DEBUGF() empty.
2677 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2678 * inet.c: Added a couple of casts to quiet the compiler.
2679 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2681 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2682 * inet.c: Made data types consistent in inet_ntoa().
2683 Added casts for return values of checksum routines, to pacify compiler.
2684 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2685 Small corrections to some debugging statements, to pacify compiler.
2687 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2688 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2689 * ethernetif.c Updated low_level_output() to match prototype for
2690 netif->linkoutput and changed low_level_input() similarly for consistency.
2691 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2692 of raw_recv() in raw.h and so avoid compiler error.
2693 * sockets.c: Added trivial (int) cast to keep compiler happier.
2694 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2700 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2701 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2702 your cc.h file defines this either 1 or 0. If non-defined,
2704 * .c: Added <string.h> and <errno.h> includes where used.
2705 * etharp.c: Made some array indices unsigned.
2707 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2708 * netif.*: Added netif_set_up()/down().
2709 * dhcp.c: Changes to restart program flow.
2711 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2712 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2713 single-pass lookup for different candidates. Should exploit locality.
2715 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2716 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2717 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2718 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2719 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2723 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2724 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2725 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2726 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2727 is to prefix the 14-bit Ethernet headers with two padding bytes.
2729 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2730 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2731 * etharp.c: Fixed the case where the packet that initiates the ARP request
2732 is not queued, and gets lost. Fixed the case where the packets destination
2733 address is already known; we now always queue the packet and perform an ARP
2740 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2741 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2742 * Fixed two possible NULL references in rare cases.
2748 * Fixed DHCP which did not include the IP address in DECLINE messages.
2752 * etharp.c has been hauled over a bit.
2758 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2759 * Packets sent from ARP queue had invalid source hardware address.
2763 * Pass-by ARP requests do now update the cache.
2767 * No longer dependent on ctype.h.
2768 * New socket options.
2769 * Raw IP pcb support.
2775 * Some debug formatters and casts fixed.
2776 * Numereous fixes in PPP.
2780 * DEBUGF now is LWIP_DEBUGF
2781 * pbuf_dechain() has been re-enabled.
2782 * Mentioned the changed use of CVS branches in README.
2788 * Fixed pool pbuf memory leak in pbuf_alloc().
2789 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2790 Reported by Savin Zlobec.
2792 * PBUF_POOL chains had their tot_len field not set for non-first
2793 pbufs. Fixed in pbuf_alloc().
2797 * Added PPP stack contributed by Marc Boucher
2801 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2803 * ARP queueuing now queues the latest packet instead of the first.
2804 This is the RFC recommended behaviour, but can be overridden in
2811 * TCP has been fixed to deal with the new use of the pbuf->ref
2814 * DHCP dhcp_inform() crash bug fixed.
2818 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2819 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2820 Implemented by David Haas.
2826 * The packet buffer implementation has been enhanced to support
2827 zero-copy and copy-on-demand for packet buffers which have their
2828 payloads in application-managed memory.
2829 Implemented by David Haas.
2831 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2832 if an outgoing packet can be directly sent on the link, or perform
2833 a copy-on-demand when necessary.
2835 The application can safely assume the packet is sent, and the RAM
2836 is available to the application directly after calling udp_send()
2837 or similar function.
2841 * ARP_QUEUEING should now correctly work for all cases, including
2843 Implemented by Leon Woestenberg.
2847 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2848 to a '0.0.0.0' IP address.
2850 * The packet buffer implementation is changed. The pbuf->ref counter
2851 meaning has changed, and several pbuf functions have been
2852 adapted accordingly.
2854 * netif drivers have to be changed to set the hardware address length field
2855 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2856 See the contrib/ports/c16x cs8900 driver as a driver example.
2858 * netif's have a dhcp field that must be initialized to NULL by the driver.
2859 See the contrib/ports/c16x cs8900 driver as a driver example.
2861 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2862 logged in CVS but have not been explained here.
2864 (0.5.3) Changes since version 0.5.2
2868 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2869 threads because it wasn't protected by semaphores.
2873 * struct ip_addr now packed.
2875 * The name of the time variable in arp.c has been changed to ctime
2876 to avoid conflicts with the time() function.
2878 (0.5.2) Changes since version 0.5.1
2882 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2886 * A bug in tcp_parseopt() could cause the stack to hang because of a
2887 malformed TCP option.
2889 * The address of new connections in the accept() function in the BSD
2890 socket library was not handled correctly.
2892 * pbuf_dechain() did not update the ->tot_len field of the tail.
2894 * Aborted TCP connections were not handled correctly in all
2899 * All protocol header structs are now packed.
2901 * The ->len field in the tcp_seg structure now counts the actual
2902 amount of data, and does not add one for SYN and FIN segments.
2904 (0.5.1) Changes since version 0.5.0
2908 * Possible to run as a user process under Linux.
2910 * Preliminary support for cross platform packed structs.
2912 * ARP timer now implemented.
2916 * TCP output queue length was badly initialized when opening
2919 * TCP delayed ACKs were not sent correctly.
2921 * Explicit initialization of BSS segment variables.
2923 * read() in BSD socket library could drop data.
2925 * Problems with memory alignment.
2927 * Situations when all TCP buffers were used could lead to
2930 * TCP MSS option wasn't parsed correctly.
2932 * Problems with UDP checksum calculation.
2934 * IP multicast address tests had endianess problems.
2936 * ARP requests had wrong destination hardware address.
2940 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2942 * A ->linkoutput() member was added to struct netif.
2944 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2946 * ntoh* macros are now null definitions for big endian CPUs.
2948 (0.5.0) Changes since version 0.4.2
2952 * Redesigned operating system emulation layer to make porting easier.
2954 * Better control over TCP output buffers.
2956 * Documenation added.
2960 * Locking issues in buffer management.
2962 * Bugfixes in the sequential API.
2964 * IP forwarding could cause memory leakage. This has been fixed.
2968 * Directory structure somewhat changed; the core/ tree has been
2971 (0.4.2) Changes since version 0.4.1
2975 * Experimental ARP implementation added.
2977 * Skeleton Ethernet driver added.
2979 * Experimental BSD socket API library added.
2983 * In very intense situations, memory leakage could occur. This has
2988 * Variables named "data" and "code" have been renamed in order to
2989 avoid name conflicts in certain compilers.
2991 * Variable++ have in appliciable cases been translated to ++variable
2992 since some compilers generate better code in the latter case.
2994 (0.4.1) Changes since version 0.4
2998 * TCP: Connection attempts time out earlier than data
2999 transmissions. Nagle algorithm implemented. Push flag set on the
3000 last segment in a burst.
3002 * UDP: experimental support for UDP-Lite extensions.
3006 * TCP: out of order segments were in some cases handled incorrectly,
3007 and this has now been fixed. Delayed acknowledgements was broken
3008 in 0.4, has now been fixed. Binding to an address that is in use
3009 now results in an error. Reset connections sometimes hung an
3010 application; this has been fixed.
3012 * Checksum calculation sometimes failed for chained pbufs with odd
3013 lengths. This has been fixed.
3015 * API: a lot of bug fixes in the API. The UDP API has been improved
3016 and tested. Error reporting and handling has been
3017 improved. Logical flaws and race conditions for incoming TCP
3018 connections has been found and removed.
3020 * Memory manager: alignment issues. Reallocating memory sometimes
3021 failed, this has been fixed.
3023 * Generic library: bcopy was flawed and has been fixed.
3027 * API: all datatypes has been changed from generic ones such as
3028 ints, to specified ones such as u16_t. Functions that return
3029 errors now have the correct type (err_t).
3031 * General: A lot of code cleaned up and debugging code removed. Many
3032 portability issues have been fixed.
3034 * The license was changed; the advertising clause was removed.
3038 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3039 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3042 (0.4) Changes since version 0.3.1
3044 * Memory management has been radically changed; instead of
3045 allocating memory from a shared heap, memory for objects that are
3046 rapidly allocated and deallocated is now kept in pools. Allocation
3047 and deallocation from those memory pools is very fast. The shared
3048 heap is still present but is used less frequently.
3050 * The memory, memory pool, and packet buffer subsystems now support
3051 4-, 2-, or 1-byte alignment.
3053 * "Out of memory" situations are handled in a more robust way.
3055 * Stack usage has been reduced.
3057 * Easier configuration of lwIP parameters such as memory usage,
3058 TTLs, statistics gathering, etc. All configuration parameters are
3059 now kept in a single header file "lwipopts.h".
3061 * The directory structure has been changed slightly so that all
3062 architecture specific files are kept under the src/arch
3065 * Error propagation has been improved, both in the protocol modules
3068 * The code for the RTXC architecture has been implemented, tested
3071 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3072 the Internet checksum modules.
3074 * Bugs related to porting between a 32-bit and a 16-bit architecture
3075 have been found and corrected.
3077 * The license has been changed slightly to conform more with the
3078 original BSD license, including the advertisement clause.
3080 (0.3.1) Changes since version 0.3
3082 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3083 RAM never returned the RAM when the pbuf was deallocated.
3085 * TCP congestion control, window updates and retransmissions did not
3086 work correctly. This has now been fixed.
3088 * Bugfixes in the API.
3090 (0.3) Changes since version 0.2
3092 * New and improved directory structure. All include files are now
3093 kept in a dedicated include/ directory.
3095 * The API now has proper error handling. A new function,
3096 netconn_err(), now returns an error code for the connection in
3099 * Improvements in the memory management subsystem. The system now
3100 keeps a pointer to the lowest free memory block. A new function,
3101 mem_malloc2() tries to allocate memory once, and if it fails tries
3102 to free some memory and retry the allocation.
3104 * Much testing has been done with limited memory
3105 configurations. lwIP now does a better job when overloaded.
3107 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3109 * Many bugfixes in the TCP code:
3111 - Fixed a bug in tcp_close().
3113 - The TCP receive window was incorrectly closed when out of
3114 sequence segments was received. This has been fixed.
3116 - Connections are now timed-out of the FIN-WAIT-2 state.
3118 - The initial congestion window could in some cases be too
3119 large. This has been fixed.
3121 - The retransmission queue could in some cases be screwed up. This
3124 - TCP RST flag now handled correctly.
3126 - Out of sequence data was in some cases never delivered to the
3127 application. This has been fixed.
3129 - Retransmitted segments now contain the correct acknowledgment
3130 number and advertised window.
3132 - TCP retransmission timeout backoffs are not correctly computed
3133 (ala BSD). After a number of retransmissions, TCP now gives up
3136 * TCP connections now are kept on three lists, one for active
3137 connections, one for listening connections, and one for
3138 connections that are in TIME-WAIT. This greatly speeds up the fast
3139 timeout processing for sending delayed ACKs.
3141 * TCP now provides proper feedback to the application when a
3142 connection has been successfully set up.
3144 * More comments have been added to the code. The code has also been
3145 somewhat cleaned up.
3147 (0.2) Initial public release.