5 * [Enter new changes just after this line - do not remove this line]
9 2011-09-21: Simon Goldschmidt
10 * init.c: Converted runtime-sanity-checks into compile-time checks that can
11 be disabled (since runtime checks can often not be seen on embedded targets)
13 2011-09-11: Simon Goldschmidt
14 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
15 to get a clear separation of which functions an application or port may use
18 2011-09-11: Simon Goldschmidt
19 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
20 initial local TCP/UDP ports (so that different port ranges are used after
21 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
23 2011-09-03: Simon Goldschmidt
24 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
26 2011-08-24: Simon Goldschmidt
27 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
29 2011-07-26: Simon Goldschmidt
30 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
31 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
33 2011-07-21: Simon Goldschmidt (patch by hanhui)
34 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
35 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
36 Also added code to allow ip_forward() to forward non-broadcast packets to
37 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
39 2011-07-21: Simon Goldschmidt
40 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
41 ioctl/FIONREAD return the size of the next pending datagram.
43 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
44 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
47 2011-05-25: Simon Goldschmidt
48 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
49 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
50 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
51 code so that the code is more readable.
53 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
54 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
55 Ivan! (this is work in progress: we're just post release anyway :-)
57 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
58 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
64 2011-09-21: Simon Goldschmidt
65 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
68 2011-09-20: Simon Goldschmidt
69 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
71 2011-09-11: Simon Goldschmidt
72 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
75 2011-09-09: Simon Goldschmidt
76 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
79 2011-09-03: Simon Goldschmidt
80 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
81 is aggregated and sent to application
83 2011-09-01: Simon Goldschmidt
84 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
87 2011-09-01: Simon Goldschmidt
88 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
90 2011-08-24: Simon Goldschmidt
91 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
93 2011-08-24: Simon Goldschmidt
94 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
95 accept() on UDP connections
97 2011-08-24: Simon Goldschmidt
98 * sockets.h: fixed bug #34057 socklen_t should be a typedef
100 2011-08-24: Simon Goldschmidt
101 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
103 2011-08-24: Simon Goldschmidt
104 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
106 2011-08-24: Simon Goldschmidt
107 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
109 2011-08-22: Simon Goldschmidt
110 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
111 merely prevents nagle from not transmitting fast after closing.)
113 2011-07-22: Simon Goldschmidt
114 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
115 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
116 lwip_send() sends as much as possible for non-blocking sockets
118 2011-07-22: Simon Goldschmidt
119 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
120 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
121 at regular intervals from main level.
123 2011-07-21: Simon Goldschmidt
124 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
125 sending an ARP request when an ARP entry is used in the last minute before
128 2011-07-04: Simon Goldschmidt
129 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
131 2011-06-26: Simon Goldschmidt
132 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
133 updating its documentation only.
135 2011-06-26: Simon Goldschmidt
136 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
139 2011-06-26: Simon Goldschmidt
140 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
148 2011-03-27: Simon Goldschmidt
149 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
150 calculate it in tcp_zero_window_probe (the only place where it was used).
152 2010-11-21: Simon Goldschmidt
153 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
156 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
157 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
158 IP_MULTICAST_LOOP at socket- and raw-API level.
160 2010-06-16: Simon Goldschmidt
161 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
162 link-layer-addressed UDP traffic to be received while a netif is down (just
163 like DHCP during configuration)
165 2010-05-22: Simon Goldschmidt
166 * many many files: bug #27352: removed packing from ip_addr_t, the packed
167 version is now only used in protocol headers. Added global storage for
168 current src/dest IP address while in input functions.
170 2010-05-16: Simon Goldschmidt
171 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
172 calculation (and use them throughout the stack where applicable)
174 2010-05-16: Simon Goldschmidt
175 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
176 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
178 2010-05-16: Simon Goldschmidt
179 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
180 MEMP pool instead of the heap
182 2010-05-13: Simon Goldschmidt
183 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
184 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
185 packets to more than one pcb.
187 2010-05-02: Simon Goldschmidt
188 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
189 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
191 2010-04-30: Simon Goldschmidt
192 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
193 take a precalculated checksum, added pbuf_fill_chksum() to copy data
194 into a pbuf and at the same time calculating the checksum for that data
196 2010-04-29: Simon Goldschmidt
197 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
198 2-byte-aligned IP addresses and MAC addresses
200 2010-04-28: Patch by Bill Auerbach
201 * ip.c: Inline generating IP checksum to save a function call
203 2010-04-14: Simon Goldschmidt
204 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
205 tcpip_thread processes messages or timeouts to implement a watchdog.
207 2010-03-28: Simon Goldschmidt
208 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
209 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
211 2010-03-27: Simon Goldschmidt
212 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
213 etharp_query to prevent unnecessary function calls (inspired by
216 2010-03-20: Simon Goldschmidt
217 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
218 since the linker cannot do this automatically to save space.
220 2010-03-20: Simon Goldschmidt
221 * opt.h, etharp.c/.h: Added support for static ARP table entries
223 2010-03-14: Simon Goldschmidt
224 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
225 when creating TCP segments, not when (re-)transmitting them.
227 2010-03-07: Simon Goldschmidt
228 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
229 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
230 This should speed up receiving data on sockets as the select code in
231 event_callback is only executed when select is waiting.
233 2010-03-06: Simon Goldschmidt
234 * tcp_out.c: task #7013 (Create option to have all packets delivered to
235 netif->output in one piece): Always copy to try to create single pbufs
238 2010-03-06: Simon Goldschmidt
239 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
240 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
241 for tcp netconns to receive pbufs, not netbufs; use that function
244 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
245 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
246 Work on tcp_enqueue: Don't waste memory when chaining segments,
247 added option TCP_OVERSIZE to prevent creating many small pbufs when
248 calling tcp_write with many small blocks of data. Instead, pbufs are
249 allocated larger than needed and the space is used for later calls to
252 2010-02-21: Simon Goldschmidt
253 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
256 2010-02-21: Simon Goldschmidt
257 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
258 implementation of tcp to make API usage cleare to application programmers
260 2010-02-14: Simon Goldschmidt/Stephane Lesage
261 * ip_addr.h: Improved some defines working on ip addresses, added faster
262 macro to copy addresses that cannot be NULL
264 2010-02-13: Simon Goldschmidt
265 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
266 blocking send operation)
268 2010-02-12: Simon Goldschmidt
269 * sockets.c/.h: Added a minimal version of posix fctl() to have a
270 standardised way to set O_NONBLOCK for nonblocking sockets.
272 2010-02-12: Simon Goldschmidt
273 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
274 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
275 and dhcp work with user-allocated structs instead of callin mem_malloc
277 2010-02-12: Simon Goldschmidt/Jeff Barber
278 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
279 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
281 2010-02-12: Simon Goldschmidt
282 * sys layer: task #10139 (Prefer statically allocated memory): converted
283 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
284 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
285 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
286 to let sys.h use binary semaphores instead of mutexes - as before)
288 2010-02-09: Simon Goldschmidt (Simon Kallweit)
289 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
290 (Restart system timeout handling)
292 2010-02-09: Simon Goldschmidt
293 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
294 netif.c) - loopif does not have to be created by the port any more,
295 just define LWIP_HAVE_LOOPIF to 1.
297 2010-02-08: Simon Goldschmidt
298 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
299 inet_ntoa_r/ipaddr_ntoa_r
301 2010-02-08: Simon Goldschmidt
302 * netif.h: Added netif_s/get_igmp_mac_filter() macros
304 2010-02-05: Simon Goldschmidt
305 * netif.h: Added function-like macros to get/set the hostname on a netif
307 2010-02-04: Simon Goldschmidt
308 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
309 make changing the actual implementation behind the typedef easier.
311 2010-02-01: Simon Goldschmidt
312 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
313 for allocating memory when getaddrinfo() is called.
315 2010-01-31: Simon Goldschmidt
316 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
317 them once instead of parsing for every option. This also removes
318 the need for mem_malloc from dhcp_recv and makes it possible to
319 correctly retrieve the BOOTP file.
321 2010-01-30: simon Goldschmidt
322 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
325 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
326 * api.h, api_msg.c, sockets.c: Added except set support in select
329 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
330 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
331 Add non-blocking support for connect (partly from patch #6860),
332 plus many cleanups in socket & netconn API.
334 2010-01-27: Simon Goldschmidt
335 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
336 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
338 2010-01-26: Simon Goldschmidt
339 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
341 2010-01-14: Simon Goldschmidt
342 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
343 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
345 2010-01-13: Simon Goldschmidt
346 * mem.c: The heap now may be moved to user-defined memory by defining
347 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
348 (patch #6966 and bug #26133)
350 2010-01-10: Simon Goldschmidt (Bill Auerbach)
351 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
354 2010-01-10: Simon Goldschmidt
355 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
356 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
358 2009-12-31: Simon Goldschmidt
359 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
360 added timers.c/.h: Separated timer implementation from semaphore/mbox
361 implementation, moved timer implementation to timers.c/.h, timers are
362 now only called from tcpip_thread or by explicitly checking them.
365 2009-12-27: Simon Goldschmidt
366 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
367 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
372 2011-04-20: Simon Goldschmidt
373 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
375 2011-04-13: Simon Goldschmidt
376 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
377 using ports in the IANA private/dynamic range (49152 through 65535).
379 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
380 * etharp.h/.c: Fixed broken VLAN support.
382 2011-03-27: Simon Goldschmidt
383 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
384 pcbs) by checking if the pcb was bound (local_port != 0).
386 2011-03-27: Simon Goldschmidt
387 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
389 2011-03-27: Simon Goldschmidt
390 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
391 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
393 2011-03-27: Simon Goldschmidt
394 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
395 is present never times out) by starting retransmission timer before checking
398 2011-03-22: Simon Goldschmidt
399 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
400 calling sio_read_abort() if the file descriptor is valid.
402 2011-03-14: Simon Goldschmidt
403 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
404 more than once can render a socket useless) since it mainly involves changing
405 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
407 2011-03-13: Simon Goldschmidt
408 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
409 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
410 use EALRADY instead of -1
412 2011-03-13: Simon Goldschmidt
413 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
414 connection has been aborted by err_tcp (since this is not a normal closing
417 2011-03-13: Simon Goldschmidt
418 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
419 with pcb->state != CLOSED
421 2011-02-17: Simon Goldschmidt
422 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
425 2011-02-17: Simon Goldschmidt
426 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
428 2011-01-24: Simon Goldschmidt
429 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
431 2010-12-02: Simon Goldschmidt
432 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
434 2010-11-23: Simon Goldschmidt
435 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
436 LWIP_SO_RCVBUF and ioctl/FIONREAD.
438 2010-11-23: Simon Goldschmidt
439 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
440 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
442 2010-11-23: Simon Goldschmidt
443 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
444 refusing 'refused_data' again.
446 2010-11-22: Simon Goldschmidt
447 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
448 after a successful nonblocking connection.
450 2010-11-22: Simon Goldschmidt
451 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
452 must be sent link-local
454 2010-11-22: Simon Goldschmidt
455 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
458 2010-11-20: Simon Goldschmidt
459 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
461 2010-11-20: Simon Goldschmidt
462 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
463 resemble other stacks.
465 2010-11-20: Simon Goldschmidt
466 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
467 no-copy TCP writes will never succeed.
469 2010-11-20: Simon Goldschmidt
470 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
471 not match documentation: return ERR_ARG instead of ERR_VAL if not
472 initialized or wrong argument.
474 2010-10-20: Simon Goldschmidt
475 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
477 2010-10-05: Simon Goldschmidt
478 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
479 replugging the network cable after an AutoIP address was assigned.
481 2010-08-10: Simon Goldschmidt
482 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
484 2010-08-03: Simon Goldschmidt
485 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
487 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
488 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
489 endian architectures)
491 2010-07-28: Simon Goldschmidt
492 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
495 2010-07-27: Simon Goldschmidt
496 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
497 harm but never did anything
499 2010-07-21: Simon Goldschmidt
500 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
503 2010-07-16: Kieran Mansley
504 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
506 2010-07-10: Simon Goldschmidt
507 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
509 2010-06-30: Simon Goldschmidt
510 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
513 2010-06-28: Kieran Mansley
514 * timers.c remove unportable printing of C function pointers
516 2010-06-24: Simon Goldschmidt
517 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
518 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
520 2010-06-24: Simon Goldschmidt
521 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
522 implemented shutdown at socket level.
524 2010-06-21: Simon Goldschmidt
525 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
526 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
527 custom pbufs that reference other (original) pbufs. Additionally set
528 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
530 2010-06-15: Simon Goldschmidt
531 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
533 2010-06-14: Simon Goldschmidt
534 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
536 2010-06-12: Simon Goldschmidt
537 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
540 2010-05-17: Simon Goldschmidt
541 * netdb.c: Correctly NULL-terminate h_addr_list
543 2010-05-16: Simon Goldschmidt
544 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
545 "symbol already defined" i.e. when linking to winsock
547 2010-05-05: Simon Goldschmidt
548 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
551 2010-04-21: Simon Goldschmidt
552 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
555 2010-03-28: Luca Ceresoli
556 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
558 2010-03-27: Luca Ceresoli
559 * mib2.c: patch #7130: remove meaningless const qualifiers
561 2010-03-26: Simon Goldschmidt
562 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
564 2010-03-26: Simon Goldschmidt
565 * various files: Fixed compiling with different options disabled (TCP/UDP),
566 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
568 2010-03-25: Simon Goldschmidt
569 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
571 2010-03-25: Simon Goldschmidt
572 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
573 overrunning our rcv_wnd in ooseq case.
575 2010-03-22: Simon Goldschmidt
576 * tcp.c: tcp_listen() did not copy the pcb's prio.
578 2010-03-19: Simon Goldschmidt
579 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
581 2010-03-14: Simon Goldschmidt
582 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
583 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
584 and basing PBUF_LINK_HLEN on it.
586 2010-03-08: Simon Goldschmidt
587 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
588 when assiging routable address): when checking incoming packets and
589 aborting existing connection on address change, filter out link-local
592 2010-03-06: Simon Goldschmidt
593 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
595 2010-03-06: Simon Goldschmidt
596 * ipv4/ip.c: Don't try to forward link-local addresses
598 2010-03-06: Simon Goldschmidt
599 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
602 2010-03-05: Simon Goldschmidt
603 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
606 2010-03-05: Simon Goldschmidt
607 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
608 into multiple calls to tcp_write.
610 2010-02-21: Simon Goldschmidt
611 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
612 the implementation of DNS_USES_STATIC_BUF==1)
614 2010-02-20: Simon Goldschmidt
615 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
616 close() vs. shutdown(). Now the application does not get any more
617 recv callbacks after calling tcp_close(). Added tcp_shutdown().
619 2010-02-19: Simon Goldschmidt
620 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
621 confusion with realloc()
623 2010-02-15: Simon Goldschmidt/Stephane Lesage
624 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
627 2010-02-14: Simon Goldschmidt
628 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
629 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
630 admin-status of a netif are up
632 2010-02-14: Simon Goldschmidt
633 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
634 reception and is not really necessary
636 2010-02-14: Simon Goldschmidt
637 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
638 request was directed as us (RFC 826, Packet Reception), otherwise
639 only update existing entries; internalized some functions
641 2010-02-14: Simon Goldschmidt
642 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
643 disabled on netif used for PPPoE) by adding a new netif flag
644 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
645 device but prevents usage of ARP (so that ethernet_input can be used
648 2010-02-12: Simon Goldschmidt
649 * netif.c: netif_set_link_up/down: only do something if the link state
652 2010-02-12: Simon Goldschmidt/Stephane Lesage
653 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
656 2010-02-12: Simon Goldschmidt
657 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
659 2010-02-09: Simon Goldschmidt
660 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
661 (recv() makes receive window update for data that wasn't received by
664 2010-02-09: Simon Goldschmidt/Stephane Lesage
665 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
666 or any netconn_recv() error)
668 2010-02-09: Simon Goldschmidt
669 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
671 2010-02-09: Simon Goldschmidt
672 * netif.c: For loopback packets, adjust the stats- and snmp-counters
673 for the loopback netif.
675 2010-02-08: Simon Goldschmidt
676 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
677 since they are not used anywhere else.
679 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
680 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
681 (patch from bug #28798)
683 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
684 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
685 another bug when LWIP_RAND() returns zero.
687 2010-02-04: Simon Goldschmidt
688 * nearly every file: Use macros defined in ip_addr.h (some of them new)
689 to work with IP addresses (preparation for bug #27352 - Change ip_addr
690 from struct to typedef (u32_t) - and better code).
692 2010-01-31: Simon Goldschmidt
693 * netif.c: Don't call the link-callback from netif_set_up/down() since
694 this invalidly retriggers DHCP.
696 2010-01-29: Simon Goldschmidt
697 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
698 portability file inet.h and its contents from the stack: moved htonX-
699 functions to def.h (and the new def.c - they are not ipv4 dependent),
700 let inet.h depend on ip_addr.h and not the other way round.
701 This fixes bug #28732.
703 2010-01-28: Kieran Mansley
704 * tcp.c: Ensure ssthresh >= 2*MSS
706 2010-01-27: Simon Goldschmidt
707 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
708 callback can lead to accessing unallocated memory. As a consequence,
709 ERR_ABRT means the application has called tcp_abort()!
711 2010-01-25: Simon Goldschmidt
712 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
713 not implemented in SNMP): write-only or not-accessible are still
714 returned by getnext (though not by get)
716 2010-01-24: Simon Goldschmidt
717 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
718 not use reserved C/C++ keywords
720 2010-01-23: Simon Goldschmidt
721 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
724 2010-01-21: Simon Goldschmidt
725 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
726 if tcp_enqueue fails) both in raw- and netconn-API
728 2010-01-19: Simon Goldschmidt
729 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
731 2010-01-18: Iordan Neshev/Simon Goldschmidt
732 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
733 bugfix backports from 2.4.x.
735 2010-01-18: Simon Goldschmidt
736 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
738 2010-01-17: Simon Goldschmidt
739 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
740 task #10102: "netconn: clean up conn->err threading issues" by adding
741 error return value to struct api_msg_msg
743 2010-01-17: Simon Goldschmidt
744 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
745 to return err_t (bugs #27709 and #28087)
747 2010-01-14: Simon Goldschmidt
748 * ...: Use typedef for function prototypes throughout the stack.
750 2010-01-13: Simon Goldschmidt
751 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
752 window = 0) by correctly draining recvmbox/acceptmbox
754 2010-01-11: Simon Goldschmidt
755 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
756 erroneous callbacks) by copying the code from recent pppd
758 2010-01-10: Simon Goldschmidt
759 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
761 2010-01-10: Simon Goldschmidt
762 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
764 2010-01-08: Simon Goldschmidt
765 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
767 2010-01-08: Simon Goldschmidt
768 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
769 passed to dns_local_addhost() might be volatile
771 2010-01-07: Simon Goldschmidt
772 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
774 2010-01-06: Simon Goldschmidt
775 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
777 2009-12-31: Simon Goldschmidt
778 * many ppp files: Reorganised PPP source code from ucip structure to pppd
779 structure to easily compare our code against the pppd code (around v2.3.1)
781 2009-12-27: Simon Goldschmidt
782 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
790 2009-10-27 Simon Goldschmidt/Stephan Lesage
791 * netifapi.c/.h: Added netifapi_netif_set_addr()
793 2009-10-07 Simon Goldschmidt/Fabian Koch
794 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
795 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
797 2009-08-26 Simon Goldschmidt/Simon Kallweit
798 * slipif.c/.h: bug #26397: SLIP polling support
800 2009-08-25 Simon Goldschmidt
801 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
802 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
804 2009-08-25 Simon Goldschmidt
805 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
807 2009-08-24 Jakob Stoklund Olesen
808 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
809 to netif_set_link_up().
811 2009-08-23 Simon Goldschmidt
812 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
813 to a human-readable string.
817 2009-12-24: Kieran Mansley
818 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
821 2009-12-06: Simon Goldschmidt
822 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
823 be statically allocated (like in ucip)
825 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
826 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
828 2009-12-03: Simon Goldschmidt
829 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
830 could have non-zero length
832 2009-12-02: Simon Goldschmidt
833 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
834 tcp_input_pcb until after calling the pcb's callbacks
836 2009-11-29: Simon Goldschmidt
837 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
838 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
840 2009-11-29: Simon Goldschmidt
841 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
842 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
844 2009-11-26: Simon Goldschmidt
845 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
848 2009-11-26: Simon Goldschmidt
849 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
850 algorithm at PCB level
852 2009-11-22: Simon Goldschmidt
853 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
855 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
856 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
857 reusing time-wait pcb
859 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
860 * sockets.c: Fixed bug #28062: Data received directly after accepting
861 does not wake up select
863 2009-11-11: Simon Goldschmidt
864 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
866 2009-10-30: Simon Goldschmidt
867 * opt.h: Increased default value for TCP_MSS to 536, updated default
868 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
870 2009-10-28: Kieran Mansley
871 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
872 to follow algorithm from TCP/IP Illustrated
874 2009-10-27: Kieran Mansley
875 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
877 2009-10-25: Simon Goldschmidt
878 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
879 pcb->recv is NULL to keep rcv_wnd correct)
881 2009-10-25: Simon Goldschmidt
882 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
884 2009-10-23: Simon Goldschmidt (David Empson)
885 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
887 2009-10-21: Simon Goldschmidt
888 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
889 trailing 1 byte len (SYN/FIN)
891 2009-10-21: Simon Goldschmidt
892 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
894 2009-10-19: Simon Goldschmidt
895 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
896 conditional code to assert where applicable), check pbuf length before
897 testing for valid reply
899 2009-10-19: Simon Goldschmidt
900 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
901 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
903 2009-10-16: Simon Goldschmidt
904 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
905 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
908 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
909 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
911 2009-10-15: Simon Goldschmidt
912 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
915 2009-10-15: Simon Goldschmidt
916 * autoip.c: Fixed bug #27704: autoip starts with wrong address
917 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
918 of network byte order
920 2009-10-11 Simon Goldschmidt (Jörg Kesten)
921 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
922 which are not consecutive when retransmitting unacked segments
924 2009-10-09 Simon Goldschmidt
925 * opt.h: Fixed default values of some stats to only be enabled if used
926 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
928 2009-08-30 Simon Goldschmidt
929 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
930 function" by checking for loopback before calling ip_frag
932 2009-08-25 Simon Goldschmidt
933 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
935 2009-08-23 Simon Goldschmidt
936 * ppp.c: bug #27078: Possible memory leak in pppInit()
938 2009-08-23 Simon Goldschmidt
939 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
942 2009-08-23 Simon Goldschmidt
943 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
944 Fixed wrong parenthesis, added check in init.c
946 2009-08-23 Simon Goldschmidt
947 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
949 2009-08-23 Simon Goldschmidt
950 * many ppp files: bug #27267: Added include to string.h where needed
952 2009-08-23 Simon Goldschmidt
953 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
960 2009-05-10 Simon Goldschmidt
961 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
962 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
963 one pbuf to help MACs that don't support scatter-gather DMA.
965 2009-05-09 Simon Goldschmidt
966 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
967 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
969 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
970 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
971 extended info about the currently received packet.
973 2009-04-27 Simon Goldschmidt
974 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
976 2009-04-25 Simon Goldschmidt
977 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
978 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
980 2009-04-21 Simon Goldschmidt
981 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
982 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
983 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
984 as an external function for lookup.
986 2009-04-15 Simon Goldschmidt
987 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
989 2009-03-31 Kieran Mansley
990 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
991 TCP timestamp options, off by default. Rework tcp_enqueue() to
992 take option flags rather than specified option data
994 2009-02-18 Simon Goldschmidt
995 * cc.h: Added printf formatter for size_t: SZT_F
997 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
998 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1001 2009-02-12 Simon Goldschmidt
1002 * init.h: Added LWIP_VERSION to get the current version of the stack
1004 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1005 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1006 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1009 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1010 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1011 is only used by UDPLITE at present, so conditionalise it.
1013 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1014 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1015 "seed" address. This should reduce AUTOIP conflicts if
1016 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1018 2008-10-02 Jonathan Larmour and Rishi Khan
1019 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1022 2008-06-30 Simon Goldschmidt
1023 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1024 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1025 mem_free to run between mem_malloc iterations. Added illegal counter for
1028 2008-06-27 Simon Goldschmidt
1029 * stats.h/.c, some other files: patch #6483: stats module improvement:
1030 Added defines to display each module's statistic individually, added stats
1031 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1033 2008-06-17 Simon Goldschmidt
1034 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1035 (define LWIP_ERR_T in cc.h)
1037 2008-06-17 Simon Goldschmidt
1038 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1041 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1042 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1043 modified version of patch # 6370: Moved loopif code to netif.c so that
1044 loopback traffic is supported on all netifs (all local IPs).
1045 Added option to limit loopback packets for each netifs.
1049 2009-08-12 Kieran Mansley
1050 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1051 out of window or out of order properly
1053 2009-08-12 Kieran Mansley
1054 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1056 2009-07-28 Simon Goldschmidt
1057 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1059 2009-07-27 Kieran Mansley
1060 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1062 2009-07-09 Kieran Mansley
1063 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1064 recv_avail and don't increment counters until message successfully
1067 2009-06-25 Kieran Mansley
1068 * api_msg.c api.h: BUG26722: initialise netconn write variables
1071 2009-06-25 Kieran Mansley
1072 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1074 2009-06-25 Kieran Mansley
1075 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1076 simultaneous close behaviour, and make snd_nxt have the same meaning
1079 2009-05-12 Simon Goldschmidt
1080 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1081 arp_table / uses etharp_query" by adding etharp_gratuitous()
1083 2009-05-12 Simon Goldschmidt
1084 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1085 to the IP header (used by igmp_ip_output_if)
1087 2009-05-06 Simon Goldschmidt
1088 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1089 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1091 2009-05-05 Simon Goldschmidt
1092 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1095 2009-05-04 Simon Goldschmidt
1096 * init.c: snmp was not initialized in lwip_init()
1098 2009-05-04 Frédéric Bernon
1099 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1101 2009-05-03 Simon Goldschmidt
1102 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1103 (and unsent->next == NULL)
1105 2009-05-02 Simon Goldschmidt
1106 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1107 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1109 2009-05-02 Simon Goldschmidt
1110 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1112 2009-05-01 Simon Goldschmidt
1113 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1115 2009-05-01 Simon Goldschmidt
1116 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1118 2009-04-29 Frédéric Bernon
1119 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1120 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1121 of broadcast packets even when this option wasn't set. Port maintainers
1122 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1123 If you want this option also filter broadcast on recv operations, you also
1124 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1126 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1127 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1128 DHCP/AUTOIP cooperation
1130 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1131 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1132 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1133 right place in tcp_output and tcp_rexmit).
1135 2009-04-25 Simon Goldschmidt
1136 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1137 when debugging": memp_sizes contained the wrong sizes (including sanity
1138 regions); memp pools for MEM_USE_POOLS were too small
1140 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1141 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1142 behavior, with with ip address string not ended by a '\0', a space or a
1145 2009-04-19 Simon Goldschmidt
1146 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1147 pcb->err is called, not pcb->connected (with an error code).
1149 2009-04-19 Simon Goldschmidt
1150 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1151 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1153 2009-04-19 Simon Goldschmidt
1154 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1155 in the header pbuf, not the data pbuf)
1157 2009-04-18 Simon Goldschmidt
1158 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1160 2009-04-15 Simon Goldschmidt
1161 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1163 2009-04-15 Simon Goldschmidt
1164 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1166 2009-04-15 Simon Goldschmidt
1167 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1168 ip_hinted_output() (for smaller code mainly)
1170 2009-04-15 Simon Goldschmidt
1171 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1173 2009-04-15 Simon Goldschmidt
1174 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1175 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1176 is big enough in dhcp_start
1178 2009-04-15 Simon Goldschmidt
1179 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1181 2009-04-15 Simon Goldschmidt
1182 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1184 2009-04-15 Simon Goldschmidt
1185 * sockets.c: bug #26121: set_errno can be overridden
1187 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1188 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1191 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1192 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1195 2009-03-31 Kieran Mansley
1196 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1197 updates are calculated and sent (BUG20515)
1199 * tcp_in.c: cope with SYN packets received during established states,
1200 and retransmission of initial SYN.
1202 * tcp_out.c: set push bit correctly when tcp segments are merged
1204 2009-03-27 Kieran Mansley
1205 * tcp_out.c set window correctly on probes (correcting change made
1208 2009-03-26 Kieran Mansley
1209 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1210 connections where no reset required (bug #25622)
1212 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1215 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1216 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1217 too small depending on MEM_ALIGNMENT
1219 2009-02-16 Simon Goldschmidt
1220 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1221 converted size argument of netconn_write to 'size_t'
1223 2009-02-16 Simon Goldschmidt
1224 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1225 by moving accept callback function pointer to TCP_PCB_COMMON
1227 2009-02-12 Simon Goldschmidt
1228 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1231 2009-02-11 Simon Goldschmidt
1232 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1234 2009-02-11 Simon Goldschmidt
1235 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1236 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1238 2009-02-10 Simon Goldschmidt
1239 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1240 Accepts_pending is decrease on a corresponding listen pcb when a connection
1241 in state SYN_RCVD is close.
1243 2009-01-28 Jonathan Larmour
1244 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1247 2008-12-19 Simon Goldschmidt
1248 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1250 2008-12-10 Tamas Somogyi, Frédéric Bernon
1251 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1252 port uses deleted netbuf.
1254 2008-10-18 Simon Goldschmidt
1255 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1258 2008-10-15 Simon Goldschmidt
1259 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1260 by packing the struct ip_reass_helper.
1262 2008-10-03 David Woodhouse, Jonathan Larmour
1263 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1265 2008-10-02 Jonathan Larmour
1266 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1267 padding is included.
1269 2008-09-30 Jonathan Larmour
1270 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1271 assertion check that addrlen isn't NULL.
1273 2008-09-30 Jonathan Larmour
1274 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1276 2008-08-26 Simon Goldschmidt
1277 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1278 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1280 2008-08-14 Simon Goldschmidt
1281 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1282 tcp_close returns != ERR_OK)
1284 2008-07-08 Frédéric Bernon
1285 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1286 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1288 2008-06-24 Jonathan Larmour
1289 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1290 if tcp_seg_copy fails.
1292 2008-06-17 Simon Goldschmidt
1293 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1294 and created defines for swapping bytes and folding u32 to u16.
1296 2008-05-30 Kieran Mansley
1297 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1298 rather than rcv_ann_wnd when deciding if packets are in-window.
1299 Contributed by <arasmussen@consultant.datasys.swri.edu>
1301 2008-05-30 Kieran Mansley
1302 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1303 passing as function pointers when MEM_LIBC_MALLOC is defined.
1305 2008-05-09 Jonathan Larmour
1306 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1307 stop it being treated as a fatal error.
1309 2008-04-15 Simon Goldschmidt
1310 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1313 2008-03-27 Simon Goldschmidt
1314 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1315 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1316 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1317 or heap memory from interrupt context
1319 2008-03-26 Simon Goldschmidt
1320 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1321 host sent a zero mss as TCP option.
1328 2008-03-10 Jonathan Larmour
1329 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1330 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1332 2008-01-22 Frédéric Bernon
1333 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1334 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1336 2008-01-14 Frédéric Bernon
1337 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1338 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1339 tcp_recv callback (see rawapi.txt).
1341 2008-01-14 Frédéric Bernon, Marc Chaland
1342 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1344 2008-01-12 Frédéric Bernon
1345 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1346 netconn::sem per netconn::op_completed like suggested for the task #7490
1347 "Add return value to sys_mbox_post".
1349 2008-01-12 Frédéric Bernon
1350 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1351 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1352 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1354 2008-01-10 Frédéric Bernon
1355 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1356 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1357 "blocking" ("block" parameter = 1).
1359 2008-01-10 Frédéric Bernon
1360 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1361 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1362 "Add return value to sys_mbox_post".
1364 2008-01-05 Frédéric Bernon
1365 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1366 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1367 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1368 indicate the number of pointers query by the mailbox. There is three defines
1369 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1370 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1371 parameter in your implementation, but to ignore it to keep the previous behavior.
1372 The new sys_mbox_trypost function return a value to know if the mailbox is
1373 full or if the message is posted. Take a look to sys_arch.txt for more details.
1374 This new function is used in tcpip_input (so, can be called in an interrupt
1375 context since the function is not blocking), and in recv_udp and recv_raw.
1377 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1378 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1379 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1380 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1381 documentation in the rawapi.txt file.
1383 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1384 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1386 2007-12-31 Frédéric Bernon, Luca Ceresoli
1387 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1388 in autoip". The change in etharp_raw could be removed, since all calls to
1389 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1390 wrong in the future.
1392 2007-12-30 Frédéric Bernon, Tom Evans
1393 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1394 Filtering" reported by Tom Evans.
1396 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1397 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1398 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1399 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1400 keep accepting new connections.
1402 2007-12-13 Frédéric Bernon
1403 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1404 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1406 2007-12-12 Frédéric Bernon
1407 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1408 are the one which have ram usage.
1410 2007-12-05 Frédéric Bernon
1411 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1412 set of variables (=0) or a local one (=1). In this last case, your port should
1413 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1414 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1416 2007-12-03 Simon Goldschmidt
1417 * ip.c: ip_input: check if a packet is for inp first before checking all other
1418 netifs on netif_list (speeds up packet receiving in most cases)
1420 2007-11-30 Simon Goldschmidt
1421 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1422 UDP: move a (connected) pcb selected for input to the front of the list of
1423 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1426 2007-11-28 Simon Goldschmidt
1427 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1429 2007-11-25 Simon Goldschmidt
1430 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1433 2007-11-24 Simon Goldschmidt
1434 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1435 to the new file netdb.c; included lwip_getaddrinfo.
1437 2007-11-21 Simon Goldschmidt
1438 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1439 based on the MTU of the netif used to send. Enabled by default. Disable by
1440 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1442 2007-11-19 Frédéric Bernon
1443 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1444 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1445 copy dns payload to parse the response), return an error if there is no place
1446 for a new query, and fix some minor problems.
1448 2007-11-16 Simon Goldschmidt
1449 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1450 removed files: core/inet.c, core/inet6.c
1451 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1452 inet and chksum part; changed includes in all lwIP files as appropriate
1454 2007-11-16 Simon Goldschmidt
1455 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1456 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1457 (gethostbyname/gethostbyname_r).
1459 2007-11-15 Jim Pettinato, Frédéric Bernon
1460 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1461 requests with RAW api interface. Initialization is done in lwip_init() with
1462 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1463 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1464 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1465 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1466 list with points to improve.
1468 2007-11-06 Simon Goldschmidt
1469 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1470 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1471 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1473 2007-11-06 Simon Goldschmidt
1474 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1475 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1476 implementation from netconn api applications.
1478 2007-11-03 Frédéric Bernon
1479 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1480 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1481 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1482 it. This is a first release which have to be improve for TCP. Note it used the
1483 netconn::recv_avail which need to be more "thread-safe" (note there is already
1484 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1486 2007-11-01 Frédéric Bernon, Marc Chaland
1487 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1488 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1489 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1490 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1491 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1493 2007-10-24 Frédéric Bernon
1494 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1495 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1496 some code (like we have talk in "patch #5919 : Create compile switch to remove
1497 select code"), but it could be done later.
1499 2007-10-08 Simon Goldschmidt
1500 * many files: Changed initialization: many init functions are not needed any
1501 more since we now rely on the compiler initializing global and static
1504 2007-10-06 Simon Goldschmidt
1505 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1506 to enqueue the received pbufs so that multiple packets can be reassembled
1507 simultaneously and no static reassembly buffer is needed.
1509 2007-10-05 Simon Goldschmidt
1510 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1511 all netifs (or ports) can use it.
1513 2007-10-05 Frédéric Bernon
1514 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1515 common function to reduce a little bit the footprint (for all functions using
1516 only the "netif" parameter).
1518 2007-10-03 Frédéric Bernon
1519 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1520 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1521 a little bit the footprint (for all functions using only the "netif" parameter).
1523 2007-09-15 Frédéric Bernon
1524 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1525 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1526 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1527 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1529 2007-09-10 Frédéric Bernon
1530 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1531 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1532 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1533 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1534 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1535 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1536 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1537 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1538 when it's queried (any direct call to "sysuptime" is changed by a call to
1539 snmp_get_sysuptime).
1541 2007-09-09 Frédéric Bernon, Bill Florac
1542 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1543 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1544 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1545 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1546 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1547 the next query message to receive the matching multicast streams).
1549 2007-09-08 Frédéric Bernon
1550 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1551 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1552 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1553 Enable to access to these fields with LWIP_TCP=0.
1555 2007-09-05 Frédéric Bernon
1556 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1557 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1558 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1559 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1560 help to reduce footprint, and to reduce "visibility" on the Internet.
1562 2007-09-05 Frédéric Bernon, Bill Florac
1563 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1564 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1565 parameters have to be provided: a task name, and a task stack size. For this
1566 one, since it's platform dependant, you could define the best one for you in
1567 your lwipopts.h. For port maintainers, you can just add these new parameters
1568 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1571 2007-09-05 Frédéric Bernon
1572 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1573 inside init.c for task #7142 "Sanity check user-configurable values".
1575 2007-09-04 Frédéric Bernon, Bill Florac
1576 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1577 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1578 value). It will avoid potential fragmentation problems, use a counter to know
1579 how many times a group is used on an netif, and free it when all applications
1580 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1581 check if LWIP_IGMP!=0).
1583 2007-09-03 Frédéric Bernon
1584 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1585 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1586 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1587 and/or the "interface" field (for netconn layer), for join/leave operations.
1588 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1589 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1591 2007-08-30 Frédéric Bernon
1592 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1593 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1594 with other API (application based on raw API, or future "socket2" API). Ports
1595 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1597 2007-08-30 Frédéric Bernon, Jonathan Larmour
1598 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1599 user-configurable values".
1601 2007-08-29 Frédéric Bernon
1602 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1603 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1604 spirit than the others modules. Modify some IGMP debug traces.
1606 2007-08-29 Frédéric Bernon
1607 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1608 Add lwip_init function to regroup all modules initializations, and to provide
1609 a place to add code for task #7142 "Sanity check user-configurable values".
1610 Ports maintainers should remove direct initializations calls from their code,
1611 and add init.c in their makefiles. Note that lwip_init() function is called
1612 inside tcpip_init, but can also be used by raw api users since all calls are
1613 disabled when matching options are disabled. Also note that their is new options
1614 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1616 2007-08-26 Marc Boucher
1617 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1618 since they can under certain circumstances be called with an invalid conn
1619 pointer after the connection has been closed (and conn has been freed).
1621 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1622 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1623 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1625 2007-08-22 Frédéric Bernon
1626 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1627 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1629 2007-08-22 Frédéric Bernon
1630 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1631 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1632 name is tcpip_input (we keep the name of 1.2.0 function).
1634 2007-08-17 Jared Grubb
1635 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1636 settings into new memp_std.h and optional user file lwippools.h. This adds
1637 more dynamic mempools, and allows the user to create an arbitrary number of
1638 mempools for mem_malloc.
1640 2007-08-16 Marc Boucher
1641 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1642 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1643 close the connection.
1645 2007-08-16 Marc Boucher
1646 * sockets.c: lwip_accept(): check netconn_peer() error return.
1648 2007-08-16 Marc Boucher
1649 * mem.c, mem.h: Added mem_calloc().
1651 2007-08-16 Marc Boucher
1652 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1653 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1654 and starving other message types.
1655 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1657 2007-08-16 Marc Boucher
1658 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1659 type and flgs (later renamed to flags).
1660 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1661 Improved lwip_recvfrom(). TCP push now propagated.
1663 2007-08-16 Marc Boucher
1664 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1667 2007-08-16 Marc Boucher
1668 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1669 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1670 Added PPPoE support and various PPP improvements.
1672 2007-07-25 Simon Goldschmidt
1673 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1674 making netbuf_copy_partial use this function.
1676 2007-07-25 Simon Goldschmidt
1677 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1678 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1681 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1682 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1683 a link callback in the netif struct, and functions to handle it. Be carefull
1684 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1685 if you want to be sure to be compatible with future changes...
1687 2007-06-30 Frédéric Bernon
1688 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1690 2007-06-21 Simon Goldschmidt
1691 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1692 LWIP_AUTOIP =0 and =1 to remove redundant code.
1694 2007-06-21 Simon Goldschmidt
1695 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1696 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1697 heap. This both prevents memory fragmentation and gives a higher speed
1698 at the cost of more memory consumption. Turned off by default.
1700 2007-06-21 Simon Goldschmidt
1701 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1702 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1703 int to be able to send a bigger buffer than 64K with one time (mainly
1704 used from lwip_send).
1706 2007-06-21 Simon Goldschmidt
1707 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1708 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1710 2007-06-21 Simon Goldschmidt
1711 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1712 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1713 changes on low memory or empty send-buffer.
1715 2007-06-18 Simon Goldschmidt
1716 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1717 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1718 used for ethernet and struct eth_addr already had a defined length of 6).
1720 2007-06-17 Simon Goldschmidt
1721 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1722 to disable UDP checksum generation on transmit.
1724 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1725 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1726 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1727 this macro to check "conn" parameter in api_msg.c functions.
1729 2007-06-11 Simon Goldschmidt
1730 * sockets.c, sockets.h: Added UDP lite support for sockets
1732 2007-06-10 Simon Goldschmidt
1733 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1734 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1737 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1738 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1739 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1740 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1741 (see TODO mark in the source code).
1743 2007-06-09 Simon Goldschmidt
1744 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1745 etharp_output() to match netif->output so etharp_output() can be used
1746 directly as netif->output to save one function call.
1748 2007-06-08 Simon Goldschmidt
1749 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1750 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1751 added initialization of those to ethernetif, slipif and loopif.
1753 2007-05-18 Simon Goldschmidt
1754 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1755 (defaulting to off for now) that can be set to 0 to send fragmented
1756 packets by passing PBUF_REFs down the stack.
1758 2007-05-23 Frédéric Bernon
1759 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1760 connections, such present in patch #5959.
1762 2007-05-23 Frédéric Bernon
1763 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1764 code in only one part...
1766 2007-05-18 Simon Goldschmidt
1767 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1768 elements to overflow. This is achieved by adding some bytes before and after
1769 each pool element (increasing their size, of course), filling them with a
1770 prominent value and checking them on freeing the element.
1771 Set it to 2 to also check every element in every pool each time memp_malloc()
1772 or memp_free() is called (slower but more helpful).
1774 2007-05-10 Simon Goldschmidt
1775 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1776 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1779 2007-05-11 Frédéric Bernon
1780 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1781 Include a function pointer instead of a table index in the message to reduce
1782 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1783 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1785 2007-05-10 Simon Goldschmidt
1786 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1787 \ extern "C" {' in all header files. Now you can write your application using
1788 the lwIP stack in C++ and simply #include the core files. Note I have left
1789 out the netif/ppp/*h header files for now, since I don't know which files are
1790 included by applications and which are for internal use only.
1792 2007-05-09 Simon Goldschmidt
1793 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1794 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1795 situations where some compilers might inline the copy and save a function
1796 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1798 2007-05-08 Simon Goldschmidt
1799 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1800 to be overriden in case the C-library malloc implementation is not protected
1801 against concurrent access.
1803 2007-05-04 Simon Goldschmidt (Atte Kojo)
1804 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1805 multiple packets to the same host.
1807 2007-05-04 Frédéric Bernon, Jonathan Larmour
1808 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1809 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1810 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1811 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1812 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1813 these fields are now renamed "addr" & "port".
1815 2007-04-11 Jonathan Larmour
1816 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1817 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1818 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1819 by the port in sys_arch.h if desired.
1821 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1822 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1823 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1824 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1826 2007-04-05 Frédéric Bernon
1827 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1829 2007-04-04 Simon Goldschmidt
1830 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1831 use this for and architecture-independent form to tell the compiler you intentionally
1832 are not using this variable. Can be overriden in cc.h.
1834 2007-03-28 Frédéric Bernon
1835 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1836 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1837 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1838 It will be used by DHCP to register a client hostname, but can also be use when you call
1841 2007-03-28 Frédéric Bernon
1842 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1843 initialize a network interface's flag with. It tell this interface is an ethernet
1844 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1845 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1847 2007-03-26 Frédéric Bernon, Jonathan Larmour
1848 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1849 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1850 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1851 is done in tcpip_init function.
1853 2007-03-22 Frédéric Bernon
1854 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1855 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1856 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1857 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1858 but never used. Fix msg_in.c with the correct #if test for a stat display.
1860 2007-03-21 Kieran Mansley
1861 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1862 Provides callback on netif up/down state change.
1864 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1865 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1866 ip.c, netif.h, tcpip.c, opt.h:
1867 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1868 filter per all network interfaces. Declare a new function in netif to enable to
1869 control the MAC filter (to reduce lwIP traffic processing).
1871 2007-03-11 Frédéric Bernon
1872 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1873 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1874 unless you know what you're doing (default are RFC1122 compliant). Note
1875 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1877 2007-03-08 Frédéric Bernon
1878 * tcp.h: Keepalive values can be configured at compile time, but don't change
1879 this unless you know what you're doing (default are RFC1122 compliant).
1881 2007-03-08 Frédéric Bernon
1882 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1883 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1884 on UDP sockets/netconn.
1886 2007-03-08 Simon Goldschmidt
1887 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1889 2007-03-06 Frédéric Bernon
1890 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1891 Implement SO_RCVTIMEO on UDP sockets/netconn.
1893 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1894 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1895 on the stack and remove the API msg type from memp
1897 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1898 * sockets.h, sockets.c: Move socket initialization to new
1899 lwip_socket_init() function.
1900 NOTE: this changes the API with ports. Ports will have to be
1901 updated to call lwip_socket_init() now.
1903 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1904 * api_lib.c: Use memcpy in netbuf_copy_partial.
1909 2008-03-17 Frédéric Bernon, Ed Kerekes
1910 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1911 some problems to fill the IP header on some targets, use now the
1912 ip.h macros to do it).
1914 2008-03-13 Frédéric Bernon
1915 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1916 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1917 TCP connection caused a crash. Note that using (lwip_)recvfrom
1918 like this is a bit slow and that using (lwip)getpeername is the
1919 good lwip way to do it (so, using recv is faster on tcp sockets).
1921 2008-03-12 Frédéric Bernon, Jonathan Larmour
1922 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1923 recv_raw() does not consume data", and the ping sample (with
1924 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1925 returned the IP payload, without the IP header).
1927 2008-03-04 Jonathan Larmour
1928 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1929 and/or warnings on some systems where mem_size_t and size_t differ.
1930 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1932 2008-03-04 Kieran Mansley (contributions by others)
1933 * Numerous small compiler error/warning fixes from contributions to
1934 mailing list after 1.3.0 release candidate made.
1936 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1937 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1939 2008-01-15 Kieran Mansley
1940 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1941 prevented from sending by a small send window, not just a zero
1944 2008-01-09 Jonathan Larmour
1945 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1946 conflict with Linux system headers.
1948 2008-01-06 Jonathan Larmour
1949 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1950 address entirely on receiving a DHCPNAK, and restarting discovery.
1952 2007-12-21 Simon Goldschmidt
1953 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1954 is not protected" by using new macros for interlocked access to modify/test
1955 netconn->recv_avail.
1957 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1958 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1960 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1961 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1962 of silly window avoidance and prevent lwIP from shrinking the window)
1964 2007-12-04 Simon Goldschmidt
1965 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1966 data packet was lost): add assert that all segment lists are empty in
1967 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1968 state from LAST_ACK in tcp_process
1970 2007-12-02 Simon Goldschmidt
1971 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1972 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1973 has to be set to 0 in lwipopts.h
1975 2007-12-02 Simon Goldschmidt
1976 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1977 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1978 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1979 This is a fix for thread-safety and allocates all items needed for a netconn
1980 when the netconn is created.
1982 2007-11-30 Simon Goldschmidt
1983 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1984 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1985 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1986 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1988 2007-11-27 Simon Goldschmidt
1989 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1990 letting ip_route only use netifs that are up.
1992 2007-11-27 Simon Goldschmidt
1993 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1994 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1995 sockets block most operations once they have seen a fatal error.
1997 2007-11-27 Simon Goldschmidt
1998 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1999 netif to send as an argument (to be able to send on netifs that are down).
2001 2007-11-26 Simon Goldschmidt
2002 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2005 2007-11-21 Simon Goldschmidt
2006 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2007 Fixed the nagle algorithm; nagle now also works for all raw API applications
2008 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2010 2007-11-12 Frédéric Bernon
2011 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2012 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2013 context in do_getaddr.
2015 2007-11-10 Simon Goldschmidt
2016 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2017 happen any time). Now the packet simply isn't enqueued when out of memory.
2019 2007-11-01 Simon Goldschmidt
2020 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2021 TCP_MSS if that is smaller) as long as no MSS option is received from the
2024 2007-11-01 Simon Goldschmidt
2025 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2026 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2027 sending our configured TCP_MSS instead of the one received).
2029 2007-11-01 Simon Goldschmidt
2030 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2031 calculated based on the configured TCP_MSS, not on the MSS option received
2034 2007-10-09 Simon Goldschmidt
2035 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2036 short and also was generated wrong if checksum coverage != tot_len;
2037 receive: checksum was calculated wrong if checksum coverage != tot_len
2039 2007-10-08 Simon Goldschmidt
2040 * mem.c: lfree was not updated in mem_realloc!
2042 2007-10-07 Frédéric Bernon
2043 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2044 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2045 this change cause an API breakage for netconn_addr, since a parameter
2046 type change. Any compiler should cause an error without any changes in
2047 yours netconn_peer calls (so, it can't be a "silent change"). It also
2048 reduce a little bit the footprint for socket layer (lwip_getpeername &
2049 lwip_getsockname use now a common lwip_getaddrname function since
2050 netconn_peer & netconn_addr have the same parameters).
2052 2007-09-20 Simon Goldschmidt
2053 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2054 by checking tcp_tw_pcbs also
2056 2007-09-19 Simon Goldschmidt
2057 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2059 2007-09-15 Mike Kleshov
2060 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2062 2007-09-06 Frédéric Bernon
2063 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2064 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2065 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2066 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2068 2007-08-30 Frédéric Bernon
2069 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2070 and fix some coding style.
2072 2007-08-28 Frédéric Bernon
2073 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2074 kind of packets. These packets are considered like Ethernet packets (payload
2075 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2076 are considered like IP packets (payload pointing to iphdr).
2078 2007-08-27 Frédéric Bernon
2079 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2080 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2081 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2083 2007-08-24 Kieran Mansley
2084 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2085 compiler (Paradigm C++)
2087 2007-08-09 Frédéric Bernon, Bill Florac
2088 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2089 Introduce IGMP_STATS to centralize statistics management.
2091 2007-08-09 Frédéric Bernon, Bill Florac
2092 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2093 packet on a udp pcb binded on an netif's IP address, and not on "any".
2095 2007-08-09 Frédéric Bernon, Bill Florac
2096 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2097 This is mainly on using lookup/lookfor, and some coding styles...
2099 2007-07-26 Frédéric Bernon (and "thedoctor")
2100 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2102 2007-07-25 Simon Goldschmidt
2103 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2104 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2105 (tcp_output is called again later from tcp timers).
2107 2007-07-25 Simon Goldschmidt
2108 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2109 copy_from_pbuf, which illegally modified the given pbuf.
2111 2007-07-25 Simon Goldschmidt
2112 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2113 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2115 2007-07-24 Simon Goldschmidt
2116 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2117 correct state (must be CLOSED).
2119 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2120 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2121 allocation. It now returns NULL.
2123 2007-07-13 Frédéric Bernon
2124 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2127 2007-07-13 Frédéric Bernon
2128 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2129 because current code doesn't follow rawapi.txt documentation.
2131 2007-07-13 Kieran Mansley
2132 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2133 out of sequence processing of received packets
2135 2007-07-03 Simon Goldschmidt
2136 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2137 assumption is made that this pbuf is in one piece (i.e. not chained). These
2138 assumptions clash with the possibility of converting to fully pool-based
2139 pbuf implementations, where PBUF_RAM pbufs might be chained.
2141 2007-07-03 Simon Goldschmidt
2142 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2143 when closing tcp netconns: removed conn->sem, less context switches when
2144 closing, both netconn_close and netconn_delete should safely close tcp
2147 2007-07-02 Simon Goldschmidt
2148 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2149 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2150 to cache ARP table indices with each pcb instead of single-entry cache for
2153 2007-07-02 Simon Goldschmidt
2154 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2155 warnings when assigning to smaller types.
2157 2007-06-28 Simon Goldschmidt
2158 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2160 2007-06-28 Simon Goldschmidt
2161 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2162 a segment contained chained pbufs)
2164 2007-06-28 Frédéric Bernon
2165 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2166 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2167 possible to define this macro in your own lwipopts.h to always use C library's
2168 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2170 2007-06-28 Frédéric Bernon
2171 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2172 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2173 in api_lib/api_msg (use pointers and not type with table, etc...)
2175 2007-06-26 Simon Goldschmidt
2176 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2178 2007-06-25 Simon Goldschmidt
2179 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2180 for udp packets with no matching pcb.
2182 2007-06-25 Simon Goldschmidt
2183 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2184 could get udp input packets if the remote side matched.
2186 2007-06-13 Simon Goldschmidt
2187 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2188 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2190 2007-06-13 Simon Goldschmidt
2191 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2192 -> netconn_new_..() does not allocate a new connection for unsupported
2195 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2196 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2197 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2199 2007-06-13 Frédéric Bernon, Matthias Weisser
2200 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2201 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2202 some macro names collision with some OS macros.
2204 2007-06-11 Simon Goldschmidt
2205 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2206 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2207 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2210 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2211 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2212 where TCP flags wasn't initialized in tcp_keepalive.
2214 2007-06-03 Simon Goldschmidt
2215 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2216 registered, p->payload was modified without modifying p->len if sending
2217 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2219 2007-06-03 Simon Goldschmidt
2220 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2221 re-used the input pbuf even if that didn't have enough space to include the
2222 link headers. Now the space is tested and a new pbuf is allocated for the
2223 echo response packet if the echo request pbuf isn't big enough.
2225 2007-06-01 Simon Goldschmidt
2226 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2228 2007-05-23 Frédéric Bernon
2229 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2230 allocated by do_listen if success) and netconn_accept errors handling. In
2231 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2232 by ASSERT, except for netconn_delete.
2234 2007-05-23 Frédéric Bernon
2235 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2236 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2237 directly close the recvmbox).
2239 2007-05-22 Simon Goldschmidt
2240 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2241 bound but unconnected (and non-listening) tcp_pcbs.
2243 2007-05-22 Frédéric Bernon
2244 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2245 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2246 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2247 like "sys_timeout" in their application threads.
2249 2007-05-22 Frédéric Bernon
2250 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2251 which parameters are used by which do_xxx function, and to avoid "misusing"
2252 parameters (patch #5938).
2254 2007-05-22 Simon Goldschmidt
2255 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2256 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2257 is only 8 bits wide. This affects the api, as there, the protocol was
2260 2007-05-18 Simon Goldschmidt
2261 * memp.c: addition to patch #5913: smaller pointer was returned but
2262 memp_memory was the same size -> did not save memory.
2264 2007-05-16 Simon Goldschmidt
2265 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2268 2007-05-16 Simon Goldschmidt
2269 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2270 as the one of the netif used for sending to prevent sending from old
2271 addresses after a netif address gets changed (partly fixes bug #3168).
2273 2007-05-16 Frédéric Bernon
2274 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2275 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2276 tcpip_init) because we have to be sure that network interfaces are already
2277 added (mac filter is updated only in igmp_init for the moment).
2279 2007-05-16 Simon Goldschmidt
2280 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2281 into sys_arch_sem_wait calls to prevent timers from running while waiting
2282 for the heap. This fixes bug #19167.
2284 2007-05-13 Simon Goldschmidt
2285 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2286 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2289 2007-05-07 Simon Goldschmidt
2290 * mem.c: Another attempt to fix bug #17922.
2292 2007-05-04 Simon Goldschmidt
2293 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2294 implementation so that it can be reused (don't allocate the target
2295 pbuf inside pbuf_copy()).
2297 2007-05-04 Simon Goldschmidt
2298 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2299 to save a little RAM (next pointer of memp is not used while not in pool).
2302 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2305 2007-04-23 Simon Goldschmidt
2306 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2307 in NULL reference for incoming TCP packets". Loopif has to be configured
2308 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2309 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2310 putting packets on a list that is fed to the stack by calling loopif_poll()
2311 (single-thread / NO_SYS / polling environment where e.g.
2312 netif->input() = ip_input).
2314 2007-04-17 Jonathan Larmour
2315 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2316 the difference between two u16_t's.
2317 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2318 MEMP_NUM_NETCONN in sockets.c right now.
2320 2007-04-12 Jonathan Larmour
2321 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2323 2007-04-12 Kieran Mansley
2324 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2325 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2327 2007-04-11 Simon Goldschmidt
2328 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2329 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2330 pbuf.c: removed functions no needed any more (by etharp).
2332 2007-04-11 Kieran Mansley
2333 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2334 "Constant is long" warnings with 16bit compilers. Contributed by
2335 avatar@mmlab.cse.yzu.edu.tw
2337 2007-04-05 Frédéric Bernon, Jonathan Larmour
2338 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2339 the mailbox is active". Now, the post is only done during a connect, and do_send,
2340 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2342 2007-04-03 Frédéric Bernon
2343 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2344 packets. See patch #5834.
2346 2007-03-30 Frédéric Bernon
2347 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2348 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2350 2007-03-30 Frédéric Bernon
2351 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2352 others environment defines (these were too "generic").
2354 2007-03-28 Frédéric Bernon
2355 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2356 result and can cause a crash. lwip_send now check netbuf_ref result.
2358 2007-03-28 Simon Goldschmidt
2359 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2360 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2361 defined. This is the way it should have been already (looking at
2364 2007-03-28 Kieran Mansley
2365 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2366 IP and TCP headers *and* physical link headers
2368 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2369 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2370 to send some garbage. It is not a definitive solution, but the patch does solve
2371 the problem for most cases.
2373 2007-03-22 Frédéric Bernon
2374 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2376 2007-03-22 Frédéric Bernon
2377 * api_lib.c: somes resources couldn't be freed if there was errors during
2378 netconn_new_with_proto_and_callback.
2380 2007-03-22 Frédéric Bernon
2381 * ethernetif.c: update netif->input calls to check return value. In older ports,
2382 it's a good idea to upgrade them, even if before, there could be another problem
2383 (access to an uninitialized mailbox).
2385 2007-03-21 Simon Goldschmidt
2386 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2387 by casting to unsigned).
2389 2007-03-21 Frédéric Bernon
2390 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2391 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2392 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2393 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2394 faster and more reliable communication between api_lib and tcpip.
2396 2007-03-21 Frédéric Bernon
2397 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2399 2007-03-21 Frédéric Bernon
2400 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2402 2007-03-21 Kieran Mansley
2403 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2406 2007-03-21 Kieran Mansley
2407 * Fix all uses of pbuf_header to check the return value. In some
2408 cases just assert if it fails as I'm not sure how to fix them, but
2409 this is no worse than before when they would carry on regardless
2412 2007-03-21 Kieran Mansley
2413 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2414 comment out missing header include in icmp.c
2416 2007-03-20 Frédéric Bernon
2417 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2418 synchronized with memp.h.
2420 2007-03-20 Frédéric Bernon
2421 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2422 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2423 network interfaces. Also fix a compiler warning.
2425 2007-03-20 Kieran Mansley
2426 * udp.c: Only try and use pbuf_header() to make space for headers if
2427 not a ROM or REF pbuf.
2429 2007-03-19 Frédéric Bernon
2430 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2433 2007-03-19 Frédéric Bernon
2434 * Remove unimplemented "memp_realloc" function from memp.h.
2436 2007-03-11 Simon Goldschmidt
2437 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2440 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2441 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2442 (missing `const' qualifier in socket functions), to get more compatible to
2443 standard POSIX sockets.
2445 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2446 * sockets.c: Add asserts inside bind, connect and sendto to check input
2447 parameters. Remove excessive set_errno() calls after get_socket(), because
2448 errno is set inside of get_socket(). Move last sock_set_errno() inside
2451 2007-03-09 Simon Goldschmidt
2452 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2453 was allocated too small.
2455 2007-03-06 Simon Goldschmidt
2456 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2457 the stack from concurrent access.
2459 2007-03-06 Frédéric Bernon, Dmitry Potapov
2460 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2461 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2463 2007-03-06 Simon Goldschmidt
2464 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2465 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2467 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2468 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2469 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2470 Allow to do ARP processing for incoming packets inside tcpip_thread
2471 (protecting ARP layer against concurrent access). You can also disable
2472 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2473 Older ports have to use tcpip_ethinput.
2475 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2476 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2477 from pointer target type"
2479 2007-03-05 Frédéric Bernon
2480 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2481 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2483 2007-03-04 Frédéric Bernon
2484 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2487 2007-03-04 Frédéric Bernon
2488 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2490 The api_msg struct stay on the stack (not moved to netconn struct).
2492 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2493 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2494 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2495 Also fixed cast warning in pbuf_alloc()
2497 2007-03-04 Simon Goldschmidt
2498 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2499 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2501 2007-03-03 Frédéric Bernon
2502 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2503 It is static, and never used in udp.c except udp_init().
2505 2007-03-02 Simon Goldschmidt
2506 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2507 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2508 initialized before tcpip_thread is running (e.g. before OS is started)
2510 2007-03-02 Frédéric Bernon
2511 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2514 2007-02-28 Kieran Mansley
2515 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2516 outside the region of the pbuf by pbuf_header()
2518 2007-02-28 Kieran Mansley
2519 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2520 when supplied timeout is also non-zero
2524 2006-12-05 Leon Woestenberg
2525 * CHANGELOG: Mention STABLE-1.2.0 release.
2529 2006-12-01 Christiaan Simons
2530 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2531 Note this is a workaround. Currently I have no other options left.
2533 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2534 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2535 to include/lwip/opt.h.
2536 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2537 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2538 * opt.h: Add above new options.
2540 2006-08-18 Christiaan Simons
2541 * tcp_{in,out}.c: added SNMP counters.
2542 * ipv4/ip.c: added SNMP counters.
2543 * ipv4/ip_frag.c: added SNMP counters.
2545 2006-08-08 Christiaan Simons
2546 * etharp.{c,h}: added etharp_find_addr() to read
2547 (stable) ethernet/IP address pair from ARP table
2549 2006-07-14 Christiaan Simons
2550 * mib_structs.c: added
2551 * include/lwip/snmp_structs.h: added
2552 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2554 2006-07-06 Christiaan Simons
2555 * snmp/asn1_{enc,dec}.c added
2557 * snmp/msg_{in,out}.c added
2558 * include/lwip/snmp_asn1.h added
2559 * include/lwip/snmp_msg.h added
2560 * doc/snmp_agent.txt added
2562 2006-03-29 Christiaan Simons
2563 * inet.c, inet.h: Added platform byteswap support.
2564 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2565 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2569 2006-11-30 Christiaan Simons
2570 * dhcp.c: Fixed false triggers of request_timeout.
2572 2006-11-28 Christiaan Simons
2573 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2575 2006-10-11 Christiaan Simons
2576 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2577 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2578 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2579 identifier from 170 to 136 (bug #17574).
2581 2006-10-10 Christiaan Simons
2582 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2584 2006-08-17 Christiaan Simons
2585 * udp.c: Fixed bug #17200, added check for broadcast
2586 destinations for PCBs bound to a unicast address.
2588 2006-08-07 Christiaan Simons
2589 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2591 2006-06-27 Christiaan Simons
2592 * api_msg.c: Applied patch for cold case (bug #11135).
2593 In accept_function() ensure newconn->callback is always initialized.
2595 2006-06-15 Christiaan Simons
2596 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2597 facilitate printing of mem_size_t and u16_t statistics.
2599 2006-06-14 Christiaan Simons
2600 * api_msg.c: Applied patch #5146 to handle allocation failures
2601 in accept() by Kevin Lawson.
2603 2006-05-26 Christiaan Simons
2604 * api_lib.c: Removed conn->sem creation and destruction
2605 from netconn_write() and added sys_sem_new to netconn_new_*.
2609 2006-03-03 Christiaan Simons
2610 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2611 access and added pbuf_alloc() return value checks.
2613 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2614 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2615 now handled by the checksum routine properly.
2617 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2618 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2619 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2621 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2622 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2623 submitted by Mitrani Hiroshi.
2625 2005-12-15 Christiaan Simons
2626 * inet.c: Disabled the added summing routine to preserve code space.
2628 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2629 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2630 Added Curt McDowell's optimized checksumming routine for future
2631 inclusion. Need to create test case for unaliged, aligned, odd,
2632 even length combination of cases on various endianess machines.
2634 2005-12-09 Christiaan Simons
2635 * inet.c: Rewrote standard checksum routine in proper portable C.
2637 2005-11-25 Christiaan Simons
2638 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2639 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2640 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2642 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2643 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2644 routine by Peter Jolasson.
2645 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2647 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2648 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2649 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2651 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2652 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2654 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2655 * udp.c: UDP pcb->recv() was called even when it was NULL.
2659 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2660 * etharp.*: Disabled multiple packets on the ARP queue.
2661 This clashes with TCP queueing.
2663 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2664 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2665 Halved the ARP period, doubled the period counts.
2666 ETHARP_MAX_PENDING now should be at least 2. This prevents
2667 the counter from reaching 0 right away (which would allow
2668 too little time for ARP responses to be received).
2670 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2671 * dhcp.c: Decline messages were not multicast but unicast.
2672 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2673 Do not try hard to insert arbitrary packet's source address,
2674 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2675 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2676 querying an address will see it appear in the cache (DHCP could
2677 suffer from this when a server invalidly gave an in-use address.)
2678 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2679 comparing network addresses (identifiers), not the network masks
2681 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2682 IP address actually belongs to the network of the given interface.
2684 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2685 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2689 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2690 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2691 even if one is already pending, if the rcv_wnd is above a threshold
2692 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2693 delayed ACK in order to open the window if the stack is only receiving data.
2695 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2696 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2698 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2699 * etharp.c: Make sure the first pbuf queued on an ARP entry
2700 is properly ref counted.
2702 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2703 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2704 warnings about comparison.
2705 * pbuf.c: Stopped compiler complaining of empty if statement
2706 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2707 * tcp.c: Stopped compiler complaining of empty if statement
2708 when LWIP_DEBUGF() empty.
2709 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2710 * inet.c: Added a couple of casts to quiet the compiler.
2711 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2713 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2714 * inet.c: Made data types consistent in inet_ntoa().
2715 Added casts for return values of checksum routines, to pacify compiler.
2716 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2717 Small corrections to some debugging statements, to pacify compiler.
2719 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2720 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2721 * ethernetif.c Updated low_level_output() to match prototype for
2722 netif->linkoutput and changed low_level_input() similarly for consistency.
2723 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2724 of raw_recv() in raw.h and so avoid compiler error.
2725 * sockets.c: Added trivial (int) cast to keep compiler happier.
2726 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2732 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2733 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2734 your cc.h file defines this either 1 or 0. If non-defined,
2736 * .c: Added <string.h> and <errno.h> includes where used.
2737 * etharp.c: Made some array indices unsigned.
2739 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2740 * netif.*: Added netif_set_up()/down().
2741 * dhcp.c: Changes to restart program flow.
2743 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2744 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2745 single-pass lookup for different candidates. Should exploit locality.
2747 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2748 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2749 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2750 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2751 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2755 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2756 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2757 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2758 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2759 is to prefix the 14-bit Ethernet headers with two padding bytes.
2761 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2762 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2763 * etharp.c: Fixed the case where the packet that initiates the ARP request
2764 is not queued, and gets lost. Fixed the case where the packets destination
2765 address is already known; we now always queue the packet and perform an ARP
2772 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2773 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2774 * Fixed two possible NULL references in rare cases.
2780 * Fixed DHCP which did not include the IP address in DECLINE messages.
2784 * etharp.c has been hauled over a bit.
2790 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2791 * Packets sent from ARP queue had invalid source hardware address.
2795 * Pass-by ARP requests do now update the cache.
2799 * No longer dependent on ctype.h.
2800 * New socket options.
2801 * Raw IP pcb support.
2807 * Some debug formatters and casts fixed.
2808 * Numereous fixes in PPP.
2812 * DEBUGF now is LWIP_DEBUGF
2813 * pbuf_dechain() has been re-enabled.
2814 * Mentioned the changed use of CVS branches in README.
2820 * Fixed pool pbuf memory leak in pbuf_alloc().
2821 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2822 Reported by Savin Zlobec.
2824 * PBUF_POOL chains had their tot_len field not set for non-first
2825 pbufs. Fixed in pbuf_alloc().
2829 * Added PPP stack contributed by Marc Boucher
2833 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2835 * ARP queueuing now queues the latest packet instead of the first.
2836 This is the RFC recommended behaviour, but can be overridden in
2843 * TCP has been fixed to deal with the new use of the pbuf->ref
2846 * DHCP dhcp_inform() crash bug fixed.
2850 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2851 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2852 Implemented by David Haas.
2858 * The packet buffer implementation has been enhanced to support
2859 zero-copy and copy-on-demand for packet buffers which have their
2860 payloads in application-managed memory.
2861 Implemented by David Haas.
2863 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2864 if an outgoing packet can be directly sent on the link, or perform
2865 a copy-on-demand when necessary.
2867 The application can safely assume the packet is sent, and the RAM
2868 is available to the application directly after calling udp_send()
2869 or similar function.
2873 * ARP_QUEUEING should now correctly work for all cases, including
2875 Implemented by Leon Woestenberg.
2879 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2880 to a '0.0.0.0' IP address.
2882 * The packet buffer implementation is changed. The pbuf->ref counter
2883 meaning has changed, and several pbuf functions have been
2884 adapted accordingly.
2886 * netif drivers have to be changed to set the hardware address length field
2887 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2888 See the contrib/ports/c16x cs8900 driver as a driver example.
2890 * netif's have a dhcp field that must be initialized to NULL by the driver.
2891 See the contrib/ports/c16x cs8900 driver as a driver example.
2893 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2894 logged in CVS but have not been explained here.
2896 (0.5.3) Changes since version 0.5.2
2900 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2901 threads because it wasn't protected by semaphores.
2905 * struct ip_addr now packed.
2907 * The name of the time variable in arp.c has been changed to ctime
2908 to avoid conflicts with the time() function.
2910 (0.5.2) Changes since version 0.5.1
2914 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2918 * A bug in tcp_parseopt() could cause the stack to hang because of a
2919 malformed TCP option.
2921 * The address of new connections in the accept() function in the BSD
2922 socket library was not handled correctly.
2924 * pbuf_dechain() did not update the ->tot_len field of the tail.
2926 * Aborted TCP connections were not handled correctly in all
2931 * All protocol header structs are now packed.
2933 * The ->len field in the tcp_seg structure now counts the actual
2934 amount of data, and does not add one for SYN and FIN segments.
2936 (0.5.1) Changes since version 0.5.0
2940 * Possible to run as a user process under Linux.
2942 * Preliminary support for cross platform packed structs.
2944 * ARP timer now implemented.
2948 * TCP output queue length was badly initialized when opening
2951 * TCP delayed ACKs were not sent correctly.
2953 * Explicit initialization of BSS segment variables.
2955 * read() in BSD socket library could drop data.
2957 * Problems with memory alignment.
2959 * Situations when all TCP buffers were used could lead to
2962 * TCP MSS option wasn't parsed correctly.
2964 * Problems with UDP checksum calculation.
2966 * IP multicast address tests had endianess problems.
2968 * ARP requests had wrong destination hardware address.
2972 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2974 * A ->linkoutput() member was added to struct netif.
2976 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2978 * ntoh* macros are now null definitions for big endian CPUs.
2980 (0.5.0) Changes since version 0.4.2
2984 * Redesigned operating system emulation layer to make porting easier.
2986 * Better control over TCP output buffers.
2988 * Documenation added.
2992 * Locking issues in buffer management.
2994 * Bugfixes in the sequential API.
2996 * IP forwarding could cause memory leakage. This has been fixed.
3000 * Directory structure somewhat changed; the core/ tree has been
3003 (0.4.2) Changes since version 0.4.1
3007 * Experimental ARP implementation added.
3009 * Skeleton Ethernet driver added.
3011 * Experimental BSD socket API library added.
3015 * In very intense situations, memory leakage could occur. This has
3020 * Variables named "data" and "code" have been renamed in order to
3021 avoid name conflicts in certain compilers.
3023 * Variable++ have in appliciable cases been translated to ++variable
3024 since some compilers generate better code in the latter case.
3026 (0.4.1) Changes since version 0.4
3030 * TCP: Connection attempts time out earlier than data
3031 transmissions. Nagle algorithm implemented. Push flag set on the
3032 last segment in a burst.
3034 * UDP: experimental support for UDP-Lite extensions.
3038 * TCP: out of order segments were in some cases handled incorrectly,
3039 and this has now been fixed. Delayed acknowledgements was broken
3040 in 0.4, has now been fixed. Binding to an address that is in use
3041 now results in an error. Reset connections sometimes hung an
3042 application; this has been fixed.
3044 * Checksum calculation sometimes failed for chained pbufs with odd
3045 lengths. This has been fixed.
3047 * API: a lot of bug fixes in the API. The UDP API has been improved
3048 and tested. Error reporting and handling has been
3049 improved. Logical flaws and race conditions for incoming TCP
3050 connections has been found and removed.
3052 * Memory manager: alignment issues. Reallocating memory sometimes
3053 failed, this has been fixed.
3055 * Generic library: bcopy was flawed and has been fixed.
3059 * API: all datatypes has been changed from generic ones such as
3060 ints, to specified ones such as u16_t. Functions that return
3061 errors now have the correct type (err_t).
3063 * General: A lot of code cleaned up and debugging code removed. Many
3064 portability issues have been fixed.
3066 * The license was changed; the advertising clause was removed.
3070 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3071 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3074 (0.4) Changes since version 0.3.1
3076 * Memory management has been radically changed; instead of
3077 allocating memory from a shared heap, memory for objects that are
3078 rapidly allocated and deallocated is now kept in pools. Allocation
3079 and deallocation from those memory pools is very fast. The shared
3080 heap is still present but is used less frequently.
3082 * The memory, memory pool, and packet buffer subsystems now support
3083 4-, 2-, or 1-byte alignment.
3085 * "Out of memory" situations are handled in a more robust way.
3087 * Stack usage has been reduced.
3089 * Easier configuration of lwIP parameters such as memory usage,
3090 TTLs, statistics gathering, etc. All configuration parameters are
3091 now kept in a single header file "lwipopts.h".
3093 * The directory structure has been changed slightly so that all
3094 architecture specific files are kept under the src/arch
3097 * Error propagation has been improved, both in the protocol modules
3100 * The code for the RTXC architecture has been implemented, tested
3103 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3104 the Internet checksum modules.
3106 * Bugs related to porting between a 32-bit and a 16-bit architecture
3107 have been found and corrected.
3109 * The license has been changed slightly to conform more with the
3110 original BSD license, including the advertisement clause.
3112 (0.3.1) Changes since version 0.3
3114 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3115 RAM never returned the RAM when the pbuf was deallocated.
3117 * TCP congestion control, window updates and retransmissions did not
3118 work correctly. This has now been fixed.
3120 * Bugfixes in the API.
3122 (0.3) Changes since version 0.2
3124 * New and improved directory structure. All include files are now
3125 kept in a dedicated include/ directory.
3127 * The API now has proper error handling. A new function,
3128 netconn_err(), now returns an error code for the connection in
3131 * Improvements in the memory management subsystem. The system now
3132 keeps a pointer to the lowest free memory block. A new function,
3133 mem_malloc2() tries to allocate memory once, and if it fails tries
3134 to free some memory and retry the allocation.
3136 * Much testing has been done with limited memory
3137 configurations. lwIP now does a better job when overloaded.
3139 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3141 * Many bugfixes in the TCP code:
3143 - Fixed a bug in tcp_close().
3145 - The TCP receive window was incorrectly closed when out of
3146 sequence segments was received. This has been fixed.
3148 - Connections are now timed-out of the FIN-WAIT-2 state.
3150 - The initial congestion window could in some cases be too
3151 large. This has been fixed.
3153 - The retransmission queue could in some cases be screwed up. This
3156 - TCP RST flag now handled correctly.
3158 - Out of sequence data was in some cases never delivered to the
3159 application. This has been fixed.
3161 - Retransmitted segments now contain the correct acknowledgment
3162 number and advertised window.
3164 - TCP retransmission timeout backoffs are not correctly computed
3165 (ala BSD). After a number of retransmissions, TCP now gives up
3168 * TCP connections now are kept on three lists, one for active
3169 connections, one for listening connections, and one for
3170 connections that are in TIME-WAIT. This greatly speeds up the fast
3171 timeout processing for sending delayed ACKs.
3173 * TCP now provides proper feedback to the application when a
3174 connection has been successfully set up.
3176 * More comments have been added to the code. The code has also been
3177 somewhat cleaned up.
3179 (0.2) Initial public release.