5 * [Enter new changes just after this line - do not remove this line]
9 2011-09-11: Simon Goldschmidt
10 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
11 to get a clear separation of which functions an application or port may use
14 2011-09-11: Simon Goldschmidt
15 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
16 initial local TCP/UDP ports (so that different port ranges are used after
17 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
19 2011-09-03: Simon Goldschmidt
20 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
22 2011-08-24: Simon Goldschmidt
23 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
25 2011-07-26: Simon Goldschmidt
26 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
27 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
29 2011-07-21: Simon Goldschmidt (patch by hanhui)
30 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
31 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
32 Also added code to allow ip_forward() to forward non-broadcast packets to
33 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
35 2011-07-21: Simon Goldschmidt
36 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
37 ioctl/FIONREAD return the size of the next pending datagram.
39 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
40 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
43 2011-05-25: Simon Goldschmidt
44 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
45 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
46 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
47 code so that the code is more readable.
49 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
50 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
51 Ivan! (this is work in progress: we're just post release anyway :-)
53 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
54 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
60 2011-09-20: Simon Goldschmidt
61 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
63 2011-09-11: Simon Goldschmidt
64 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
67 2011-09-09: Simon Goldschmidt
68 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
71 2011-09-03: Simon Goldschmidt
72 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
73 is aggregated and sent to application
75 2011-09-01: Simon Goldschmidt
76 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
79 2011-09-01: Simon Goldschmidt
80 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
82 2011-08-24: Simon Goldschmidt
83 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
85 2011-08-24: Simon Goldschmidt
86 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
87 accept() on UDP connections
89 2011-08-24: Simon Goldschmidt
90 * sockets.h: fixed bug #34057 socklen_t should be a typedef
92 2011-08-24: Simon Goldschmidt
93 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
95 2011-08-24: Simon Goldschmidt
96 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
98 2011-08-24: Simon Goldschmidt
99 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
101 2011-08-22: Simon Goldschmidt
102 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
103 merely prevents nagle from not transmitting fast after closing.)
105 2011-07-22: Simon Goldschmidt
106 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
107 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
108 lwip_send() sends as much as possible for non-blocking sockets
110 2011-07-22: Simon Goldschmidt
111 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
112 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
113 at regular intervals from main level.
115 2011-07-21: Simon Goldschmidt
116 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
117 sending an ARP request when an ARP entry is used in the last minute before
120 2011-07-04: Simon Goldschmidt
121 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
123 2011-06-26: Simon Goldschmidt
124 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
125 updating its documentation only.
127 2011-06-26: Simon Goldschmidt
128 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
131 2011-06-26: Simon Goldschmidt
132 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
140 2011-03-27: Simon Goldschmidt
141 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
142 calculate it in tcp_zero_window_probe (the only place where it was used).
144 2010-11-21: Simon Goldschmidt
145 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
148 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
149 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
150 IP_MULTICAST_LOOP at socket- and raw-API level.
152 2010-06-16: Simon Goldschmidt
153 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
154 link-layer-addressed UDP traffic to be received while a netif is down (just
155 like DHCP during configuration)
157 2010-05-22: Simon Goldschmidt
158 * many many files: bug #27352: removed packing from ip_addr_t, the packed
159 version is now only used in protocol headers. Added global storage for
160 current src/dest IP address while in input functions.
162 2010-05-16: Simon Goldschmidt
163 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
164 calculation (and use them throughout the stack where applicable)
166 2010-05-16: Simon Goldschmidt
167 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
168 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
170 2010-05-16: Simon Goldschmidt
171 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
172 MEMP pool instead of the heap
174 2010-05-13: Simon Goldschmidt
175 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
176 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
177 packets to more than one pcb.
179 2010-05-02: Simon Goldschmidt
180 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
181 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
183 2010-04-30: Simon Goldschmidt
184 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
185 take a precalculated checksum, added pbuf_fill_chksum() to copy data
186 into a pbuf and at the same time calculating the checksum for that data
188 2010-04-29: Simon Goldschmidt
189 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
190 2-byte-aligned IP addresses and MAC addresses
192 2010-04-28: Patch by Bill Auerbach
193 * ip.c: Inline generating IP checksum to save a function call
195 2010-04-14: Simon Goldschmidt
196 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
197 tcpip_thread processes messages or timeouts to implement a watchdog.
199 2010-03-28: Simon Goldschmidt
200 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
201 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
203 2010-03-27: Simon Goldschmidt
204 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
205 etharp_query to prevent unnecessary function calls (inspired by
208 2010-03-20: Simon Goldschmidt
209 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
210 since the linker cannot do this automatically to save space.
212 2010-03-20: Simon Goldschmidt
213 * opt.h, etharp.c/.h: Added support for static ARP table entries
215 2010-03-14: Simon Goldschmidt
216 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
217 when creating TCP segments, not when (re-)transmitting them.
219 2010-03-07: Simon Goldschmidt
220 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
221 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
222 This should speed up receiving data on sockets as the select code in
223 event_callback is only executed when select is waiting.
225 2010-03-06: Simon Goldschmidt
226 * tcp_out.c: task #7013 (Create option to have all packets delivered to
227 netif->output in one piece): Always copy to try to create single pbufs
230 2010-03-06: Simon Goldschmidt
231 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
232 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
233 for tcp netconns to receive pbufs, not netbufs; use that function
236 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
237 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
238 Work on tcp_enqueue: Don't waste memory when chaining segments,
239 added option TCP_OVERSIZE to prevent creating many small pbufs when
240 calling tcp_write with many small blocks of data. Instead, pbufs are
241 allocated larger than needed and the space is used for later calls to
244 2010-02-21: Simon Goldschmidt
245 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
248 2010-02-21: Simon Goldschmidt
249 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
250 implementation of tcp to make API usage cleare to application programmers
252 2010-02-14: Simon Goldschmidt/Stephane Lesage
253 * ip_addr.h: Improved some defines working on ip addresses, added faster
254 macro to copy addresses that cannot be NULL
256 2010-02-13: Simon Goldschmidt
257 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
258 blocking send operation)
260 2010-02-12: Simon Goldschmidt
261 * sockets.c/.h: Added a minimal version of posix fctl() to have a
262 standardised way to set O_NONBLOCK for nonblocking sockets.
264 2010-02-12: Simon Goldschmidt
265 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
266 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
267 and dhcp work with user-allocated structs instead of callin mem_malloc
269 2010-02-12: Simon Goldschmidt/Jeff Barber
270 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
271 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
273 2010-02-12: Simon Goldschmidt
274 * sys layer: task #10139 (Prefer statically allocated memory): converted
275 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
276 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
277 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
278 to let sys.h use binary semaphores instead of mutexes - as before)
280 2010-02-09: Simon Goldschmidt (Simon Kallweit)
281 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
282 (Restart system timeout handling)
284 2010-02-09: Simon Goldschmidt
285 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
286 netif.c) - loopif does not have to be created by the port any more,
287 just define LWIP_HAVE_LOOPIF to 1.
289 2010-02-08: Simon Goldschmidt
290 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
291 inet_ntoa_r/ipaddr_ntoa_r
293 2010-02-08: Simon Goldschmidt
294 * netif.h: Added netif_s/get_igmp_mac_filter() macros
296 2010-02-05: Simon Goldschmidt
297 * netif.h: Added function-like macros to get/set the hostname on a netif
299 2010-02-04: Simon Goldschmidt
300 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
301 make changing the actual implementation behind the typedef easier.
303 2010-02-01: Simon Goldschmidt
304 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
305 for allocating memory when getaddrinfo() is called.
307 2010-01-31: Simon Goldschmidt
308 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
309 them once instead of parsing for every option. This also removes
310 the need for mem_malloc from dhcp_recv and makes it possible to
311 correctly retrieve the BOOTP file.
313 2010-01-30: simon Goldschmidt
314 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
317 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
318 * api.h, api_msg.c, sockets.c: Added except set support in select
321 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
322 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
323 Add non-blocking support for connect (partly from patch #6860),
324 plus many cleanups in socket & netconn API.
326 2010-01-27: Simon Goldschmidt
327 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
328 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
330 2010-01-26: Simon Goldschmidt
331 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
333 2010-01-14: Simon Goldschmidt
334 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
335 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
337 2010-01-13: Simon Goldschmidt
338 * mem.c: The heap now may be moved to user-defined memory by defining
339 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
340 (patch #6966 and bug #26133)
342 2010-01-10: Simon Goldschmidt (Bill Auerbach)
343 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
346 2010-01-10: Simon Goldschmidt
347 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
348 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
350 2009-12-31: Simon Goldschmidt
351 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
352 added timers.c/.h: Separated timer implementation from semaphore/mbox
353 implementation, moved timer implementation to timers.c/.h, timers are
354 now only called from tcpip_thread or by explicitly checking them.
357 2009-12-27: Simon Goldschmidt
358 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
359 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
364 2011-04-20: Simon Goldschmidt
365 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
367 2011-04-13: Simon Goldschmidt
368 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
369 using ports in the IANA private/dynamic range (49152 through 65535).
371 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
372 * etharp.h/.c: Fixed broken VLAN support.
374 2011-03-27: Simon Goldschmidt
375 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
376 pcbs) by checking if the pcb was bound (local_port != 0).
378 2011-03-27: Simon Goldschmidt
379 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
381 2011-03-27: Simon Goldschmidt
382 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
383 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
385 2011-03-27: Simon Goldschmidt
386 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
387 is present never times out) by starting retransmission timer before checking
390 2011-03-22: Simon Goldschmidt
391 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
392 calling sio_read_abort() if the file descriptor is valid.
394 2011-03-14: Simon Goldschmidt
395 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
396 more than once can render a socket useless) since it mainly involves changing
397 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
399 2011-03-13: Simon Goldschmidt
400 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
401 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
402 use EALRADY instead of -1
404 2011-03-13: Simon Goldschmidt
405 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
406 connection has been aborted by err_tcp (since this is not a normal closing
409 2011-03-13: Simon Goldschmidt
410 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
411 with pcb->state != CLOSED
413 2011-02-17: Simon Goldschmidt
414 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
417 2011-02-17: Simon Goldschmidt
418 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
420 2011-01-24: Simon Goldschmidt
421 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
423 2010-12-02: Simon Goldschmidt
424 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
426 2010-11-23: Simon Goldschmidt
427 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
428 LWIP_SO_RCVBUF and ioctl/FIONREAD.
430 2010-11-23: Simon Goldschmidt
431 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
432 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
434 2010-11-23: Simon Goldschmidt
435 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
436 refusing 'refused_data' again.
438 2010-11-22: Simon Goldschmidt
439 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
440 after a successful nonblocking connection.
442 2010-11-22: Simon Goldschmidt
443 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
444 must be sent link-local
446 2010-11-22: Simon Goldschmidt
447 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
450 2010-11-20: Simon Goldschmidt
451 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
453 2010-11-20: Simon Goldschmidt
454 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
455 resemble other stacks.
457 2010-11-20: Simon Goldschmidt
458 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
459 no-copy TCP writes will never succeed.
461 2010-11-20: Simon Goldschmidt
462 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
463 not match documentation: return ERR_ARG instead of ERR_VAL if not
464 initialized or wrong argument.
466 2010-10-20: Simon Goldschmidt
467 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
469 2010-10-05: Simon Goldschmidt
470 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
471 replugging the network cable after an AutoIP address was assigned.
473 2010-08-10: Simon Goldschmidt
474 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
476 2010-08-03: Simon Goldschmidt
477 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
479 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
480 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
481 endian architectures)
483 2010-07-28: Simon Goldschmidt
484 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
487 2010-07-27: Simon Goldschmidt
488 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
489 harm but never did anything
491 2010-07-21: Simon Goldschmidt
492 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
495 2010-07-16: Kieran Mansley
496 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
498 2010-07-10: Simon Goldschmidt
499 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
501 2010-06-30: Simon Goldschmidt
502 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
505 2010-06-28: Kieran Mansley
506 * timers.c remove unportable printing of C function pointers
508 2010-06-24: Simon Goldschmidt
509 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
510 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
512 2010-06-24: Simon Goldschmidt
513 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
514 implemented shutdown at socket level.
516 2010-06-21: Simon Goldschmidt
517 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
518 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
519 custom pbufs that reference other (original) pbufs. Additionally set
520 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
522 2010-06-15: Simon Goldschmidt
523 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
525 2010-06-14: Simon Goldschmidt
526 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
528 2010-06-12: Simon Goldschmidt
529 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
532 2010-05-17: Simon Goldschmidt
533 * netdb.c: Correctly NULL-terminate h_addr_list
535 2010-05-16: Simon Goldschmidt
536 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
537 "symbol already defined" i.e. when linking to winsock
539 2010-05-05: Simon Goldschmidt
540 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
543 2010-04-21: Simon Goldschmidt
544 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
547 2010-03-28: Luca Ceresoli
548 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
550 2010-03-27: Luca Ceresoli
551 * mib2.c: patch #7130: remove meaningless const qualifiers
553 2010-03-26: Simon Goldschmidt
554 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
556 2010-03-26: Simon Goldschmidt
557 * various files: Fixed compiling with different options disabled (TCP/UDP),
558 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
560 2010-03-25: Simon Goldschmidt
561 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
563 2010-03-25: Simon Goldschmidt
564 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
565 overrunning our rcv_wnd in ooseq case.
567 2010-03-22: Simon Goldschmidt
568 * tcp.c: tcp_listen() did not copy the pcb's prio.
570 2010-03-19: Simon Goldschmidt
571 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
573 2010-03-14: Simon Goldschmidt
574 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
575 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
576 and basing PBUF_LINK_HLEN on it.
578 2010-03-08: Simon Goldschmidt
579 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
580 when assiging routable address): when checking incoming packets and
581 aborting existing connection on address change, filter out link-local
584 2010-03-06: Simon Goldschmidt
585 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
587 2010-03-06: Simon Goldschmidt
588 * ipv4/ip.c: Don't try to forward link-local addresses
590 2010-03-06: Simon Goldschmidt
591 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
594 2010-03-05: Simon Goldschmidt
595 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
598 2010-03-05: Simon Goldschmidt
599 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
600 into multiple calls to tcp_write.
602 2010-02-21: Simon Goldschmidt
603 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
604 the implementation of DNS_USES_STATIC_BUF==1)
606 2010-02-20: Simon Goldschmidt
607 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
608 close() vs. shutdown(). Now the application does not get any more
609 recv callbacks after calling tcp_close(). Added tcp_shutdown().
611 2010-02-19: Simon Goldschmidt
612 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
613 confusion with realloc()
615 2010-02-15: Simon Goldschmidt/Stephane Lesage
616 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
619 2010-02-14: Simon Goldschmidt
620 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
621 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
622 admin-status of a netif are up
624 2010-02-14: Simon Goldschmidt
625 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
626 reception and is not really necessary
628 2010-02-14: Simon Goldschmidt
629 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
630 request was directed as us (RFC 826, Packet Reception), otherwise
631 only update existing entries; internalized some functions
633 2010-02-14: Simon Goldschmidt
634 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
635 disabled on netif used for PPPoE) by adding a new netif flag
636 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
637 device but prevents usage of ARP (so that ethernet_input can be used
640 2010-02-12: Simon Goldschmidt
641 * netif.c: netif_set_link_up/down: only do something if the link state
644 2010-02-12: Simon Goldschmidt/Stephane Lesage
645 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
648 2010-02-12: Simon Goldschmidt
649 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
651 2010-02-09: Simon Goldschmidt
652 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
653 (recv() makes receive window update for data that wasn't received by
656 2010-02-09: Simon Goldschmidt/Stephane Lesage
657 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
658 or any netconn_recv() error)
660 2010-02-09: Simon Goldschmidt
661 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
663 2010-02-09: Simon Goldschmidt
664 * netif.c: For loopback packets, adjust the stats- and snmp-counters
665 for the loopback netif.
667 2010-02-08: Simon Goldschmidt
668 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
669 since they are not used anywhere else.
671 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
672 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
673 (patch from bug #28798)
675 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
676 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
677 another bug when LWIP_RAND() returns zero.
679 2010-02-04: Simon Goldschmidt
680 * nearly every file: Use macros defined in ip_addr.h (some of them new)
681 to work with IP addresses (preparation for bug #27352 - Change ip_addr
682 from struct to typedef (u32_t) - and better code).
684 2010-01-31: Simon Goldschmidt
685 * netif.c: Don't call the link-callback from netif_set_up/down() since
686 this invalidly retriggers DHCP.
688 2010-01-29: Simon Goldschmidt
689 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
690 portability file inet.h and its contents from the stack: moved htonX-
691 functions to def.h (and the new def.c - they are not ipv4 dependent),
692 let inet.h depend on ip_addr.h and not the other way round.
693 This fixes bug #28732.
695 2010-01-28: Kieran Mansley
696 * tcp.c: Ensure ssthresh >= 2*MSS
698 2010-01-27: Simon Goldschmidt
699 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
700 callback can lead to accessing unallocated memory. As a consequence,
701 ERR_ABRT means the application has called tcp_abort()!
703 2010-01-25: Simon Goldschmidt
704 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
705 not implemented in SNMP): write-only or not-accessible are still
706 returned by getnext (though not by get)
708 2010-01-24: Simon Goldschmidt
709 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
710 not use reserved C/C++ keywords
712 2010-01-23: Simon Goldschmidt
713 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
716 2010-01-21: Simon Goldschmidt
717 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
718 if tcp_enqueue fails) both in raw- and netconn-API
720 2010-01-19: Simon Goldschmidt
721 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
723 2010-01-18: Iordan Neshev/Simon Goldschmidt
724 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
725 bugfix backports from 2.4.x.
727 2010-01-18: Simon Goldschmidt
728 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
730 2010-01-17: Simon Goldschmidt
731 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
732 task #10102: "netconn: clean up conn->err threading issues" by adding
733 error return value to struct api_msg_msg
735 2010-01-17: Simon Goldschmidt
736 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
737 to return err_t (bugs #27709 and #28087)
739 2010-01-14: Simon Goldschmidt
740 * ...: Use typedef for function prototypes throughout the stack.
742 2010-01-13: Simon Goldschmidt
743 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
744 window = 0) by correctly draining recvmbox/acceptmbox
746 2010-01-11: Simon Goldschmidt
747 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
748 erroneous callbacks) by copying the code from recent pppd
750 2010-01-10: Simon Goldschmidt
751 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
753 2010-01-10: Simon Goldschmidt
754 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
756 2010-01-08: Simon Goldschmidt
757 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
759 2010-01-08: Simon Goldschmidt
760 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
761 passed to dns_local_addhost() might be volatile
763 2010-01-07: Simon Goldschmidt
764 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
766 2010-01-06: Simon Goldschmidt
767 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
769 2009-12-31: Simon Goldschmidt
770 * many ppp files: Reorganised PPP source code from ucip structure to pppd
771 structure to easily compare our code against the pppd code (around v2.3.1)
773 2009-12-27: Simon Goldschmidt
774 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
782 2009-10-27 Simon Goldschmidt/Stephan Lesage
783 * netifapi.c/.h: Added netifapi_netif_set_addr()
785 2009-10-07 Simon Goldschmidt/Fabian Koch
786 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
787 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
789 2009-08-26 Simon Goldschmidt/Simon Kallweit
790 * slipif.c/.h: bug #26397: SLIP polling support
792 2009-08-25 Simon Goldschmidt
793 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
794 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
796 2009-08-25 Simon Goldschmidt
797 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
799 2009-08-24 Jakob Stoklund Olesen
800 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
801 to netif_set_link_up().
803 2009-08-23 Simon Goldschmidt
804 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
805 to a human-readable string.
809 2009-12-24: Kieran Mansley
810 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
813 2009-12-06: Simon Goldschmidt
814 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
815 be statically allocated (like in ucip)
817 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
818 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
820 2009-12-03: Simon Goldschmidt
821 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
822 could have non-zero length
824 2009-12-02: Simon Goldschmidt
825 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
826 tcp_input_pcb until after calling the pcb's callbacks
828 2009-11-29: Simon Goldschmidt
829 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
830 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
832 2009-11-29: Simon Goldschmidt
833 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
834 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
836 2009-11-26: Simon Goldschmidt
837 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
840 2009-11-26: Simon Goldschmidt
841 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
842 algorithm at PCB level
844 2009-11-22: Simon Goldschmidt
845 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
847 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
848 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
849 reusing time-wait pcb
851 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
852 * sockets.c: Fixed bug #28062: Data received directly after accepting
853 does not wake up select
855 2009-11-11: Simon Goldschmidt
856 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
858 2009-10-30: Simon Goldschmidt
859 * opt.h: Increased default value for TCP_MSS to 536, updated default
860 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
862 2009-10-28: Kieran Mansley
863 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
864 to follow algorithm from TCP/IP Illustrated
866 2009-10-27: Kieran Mansley
867 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
869 2009-10-25: Simon Goldschmidt
870 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
871 pcb->recv is NULL to keep rcv_wnd correct)
873 2009-10-25: Simon Goldschmidt
874 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
876 2009-10-23: Simon Goldschmidt (David Empson)
877 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
879 2009-10-21: Simon Goldschmidt
880 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
881 trailing 1 byte len (SYN/FIN)
883 2009-10-21: Simon Goldschmidt
884 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
886 2009-10-19: Simon Goldschmidt
887 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
888 conditional code to assert where applicable), check pbuf length before
889 testing for valid reply
891 2009-10-19: Simon Goldschmidt
892 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
893 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
895 2009-10-16: Simon Goldschmidt
896 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
897 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
900 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
901 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
903 2009-10-15: Simon Goldschmidt
904 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
907 2009-10-15: Simon Goldschmidt
908 * autoip.c: Fixed bug #27704: autoip starts with wrong address
909 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
910 of network byte order
912 2009-10-11 Simon Goldschmidt (Jörg Kesten)
913 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
914 which are not consecutive when retransmitting unacked segments
916 2009-10-09 Simon Goldschmidt
917 * opt.h: Fixed default values of some stats to only be enabled if used
918 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
920 2009-08-30 Simon Goldschmidt
921 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
922 function" by checking for loopback before calling ip_frag
924 2009-08-25 Simon Goldschmidt
925 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
927 2009-08-23 Simon Goldschmidt
928 * ppp.c: bug #27078: Possible memory leak in pppInit()
930 2009-08-23 Simon Goldschmidt
931 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
934 2009-08-23 Simon Goldschmidt
935 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
936 Fixed wrong parenthesis, added check in init.c
938 2009-08-23 Simon Goldschmidt
939 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
941 2009-08-23 Simon Goldschmidt
942 * many ppp files: bug #27267: Added include to string.h where needed
944 2009-08-23 Simon Goldschmidt
945 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
952 2009-05-10 Simon Goldschmidt
953 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
954 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
955 one pbuf to help MACs that don't support scatter-gather DMA.
957 2009-05-09 Simon Goldschmidt
958 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
959 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
961 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
962 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
963 extended info about the currently received packet.
965 2009-04-27 Simon Goldschmidt
966 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
968 2009-04-25 Simon Goldschmidt
969 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
970 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
972 2009-04-21 Simon Goldschmidt
973 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
974 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
975 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
976 as an external function for lookup.
978 2009-04-15 Simon Goldschmidt
979 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
981 2009-03-31 Kieran Mansley
982 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
983 TCP timestamp options, off by default. Rework tcp_enqueue() to
984 take option flags rather than specified option data
986 2009-02-18 Simon Goldschmidt
987 * cc.h: Added printf formatter for size_t: SZT_F
989 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
990 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
993 2009-02-12 Simon Goldschmidt
994 * init.h: Added LWIP_VERSION to get the current version of the stack
996 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
997 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
998 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1001 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1002 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1003 is only used by UDPLITE at present, so conditionalise it.
1005 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1006 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1007 "seed" address. This should reduce AUTOIP conflicts if
1008 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1010 2008-10-02 Jonathan Larmour and Rishi Khan
1011 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1014 2008-06-30 Simon Goldschmidt
1015 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1016 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1017 mem_free to run between mem_malloc iterations. Added illegal counter for
1020 2008-06-27 Simon Goldschmidt
1021 * stats.h/.c, some other files: patch #6483: stats module improvement:
1022 Added defines to display each module's statistic individually, added stats
1023 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1025 2008-06-17 Simon Goldschmidt
1026 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1027 (define LWIP_ERR_T in cc.h)
1029 2008-06-17 Simon Goldschmidt
1030 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1033 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1034 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1035 modified version of patch # 6370: Moved loopif code to netif.c so that
1036 loopback traffic is supported on all netifs (all local IPs).
1037 Added option to limit loopback packets for each netifs.
1041 2009-08-12 Kieran Mansley
1042 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1043 out of window or out of order properly
1045 2009-08-12 Kieran Mansley
1046 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1048 2009-07-28 Simon Goldschmidt
1049 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1051 2009-07-27 Kieran Mansley
1052 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1054 2009-07-09 Kieran Mansley
1055 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1056 recv_avail and don't increment counters until message successfully
1059 2009-06-25 Kieran Mansley
1060 * api_msg.c api.h: BUG26722: initialise netconn write variables
1063 2009-06-25 Kieran Mansley
1064 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1066 2009-06-25 Kieran Mansley
1067 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1068 simultaneous close behaviour, and make snd_nxt have the same meaning
1071 2009-05-12 Simon Goldschmidt
1072 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1073 arp_table / uses etharp_query" by adding etharp_gratuitous()
1075 2009-05-12 Simon Goldschmidt
1076 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1077 to the IP header (used by igmp_ip_output_if)
1079 2009-05-06 Simon Goldschmidt
1080 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1081 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1083 2009-05-05 Simon Goldschmidt
1084 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1087 2009-05-04 Simon Goldschmidt
1088 * init.c: snmp was not initialized in lwip_init()
1090 2009-05-04 Frédéric Bernon
1091 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1093 2009-05-03 Simon Goldschmidt
1094 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1095 (and unsent->next == NULL)
1097 2009-05-02 Simon Goldschmidt
1098 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1099 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1101 2009-05-02 Simon Goldschmidt
1102 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1104 2009-05-01 Simon Goldschmidt
1105 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1107 2009-05-01 Simon Goldschmidt
1108 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1110 2009-04-29 Frédéric Bernon
1111 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1112 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1113 of broadcast packets even when this option wasn't set. Port maintainers
1114 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1115 If you want this option also filter broadcast on recv operations, you also
1116 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1118 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1119 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1120 DHCP/AUTOIP cooperation
1122 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1123 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1124 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1125 right place in tcp_output and tcp_rexmit).
1127 2009-04-25 Simon Goldschmidt
1128 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1129 when debugging": memp_sizes contained the wrong sizes (including sanity
1130 regions); memp pools for MEM_USE_POOLS were too small
1132 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1133 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1134 behavior, with with ip address string not ended by a '\0', a space or a
1137 2009-04-19 Simon Goldschmidt
1138 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1139 pcb->err is called, not pcb->connected (with an error code).
1141 2009-04-19 Simon Goldschmidt
1142 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1143 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1145 2009-04-19 Simon Goldschmidt
1146 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1147 in the header pbuf, not the data pbuf)
1149 2009-04-18 Simon Goldschmidt
1150 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1152 2009-04-15 Simon Goldschmidt
1153 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1155 2009-04-15 Simon Goldschmidt
1156 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1158 2009-04-15 Simon Goldschmidt
1159 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1160 ip_hinted_output() (for smaller code mainly)
1162 2009-04-15 Simon Goldschmidt
1163 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1165 2009-04-15 Simon Goldschmidt
1166 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1167 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1168 is big enough in dhcp_start
1170 2009-04-15 Simon Goldschmidt
1171 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1173 2009-04-15 Simon Goldschmidt
1174 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1176 2009-04-15 Simon Goldschmidt
1177 * sockets.c: bug #26121: set_errno can be overridden
1179 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1180 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1183 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1184 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1187 2009-03-31 Kieran Mansley
1188 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1189 updates are calculated and sent (BUG20515)
1191 * tcp_in.c: cope with SYN packets received during established states,
1192 and retransmission of initial SYN.
1194 * tcp_out.c: set push bit correctly when tcp segments are merged
1196 2009-03-27 Kieran Mansley
1197 * tcp_out.c set window correctly on probes (correcting change made
1200 2009-03-26 Kieran Mansley
1201 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1202 connections where no reset required (bug #25622)
1204 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1207 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1208 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1209 too small depending on MEM_ALIGNMENT
1211 2009-02-16 Simon Goldschmidt
1212 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1213 converted size argument of netconn_write to 'size_t'
1215 2009-02-16 Simon Goldschmidt
1216 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1217 by moving accept callback function pointer to TCP_PCB_COMMON
1219 2009-02-12 Simon Goldschmidt
1220 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1223 2009-02-11 Simon Goldschmidt
1224 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1226 2009-02-11 Simon Goldschmidt
1227 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1228 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1230 2009-02-10 Simon Goldschmidt
1231 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1232 Accepts_pending is decrease on a corresponding listen pcb when a connection
1233 in state SYN_RCVD is close.
1235 2009-01-28 Jonathan Larmour
1236 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1239 2008-12-19 Simon Goldschmidt
1240 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1242 2008-12-10 Tamas Somogyi, Frédéric Bernon
1243 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1244 port uses deleted netbuf.
1246 2008-10-18 Simon Goldschmidt
1247 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1250 2008-10-15 Simon Goldschmidt
1251 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1252 by packing the struct ip_reass_helper.
1254 2008-10-03 David Woodhouse, Jonathan Larmour
1255 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1257 2008-10-02 Jonathan Larmour
1258 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1259 padding is included.
1261 2008-09-30 Jonathan Larmour
1262 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1263 assertion check that addrlen isn't NULL.
1265 2008-09-30 Jonathan Larmour
1266 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1268 2008-08-26 Simon Goldschmidt
1269 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1270 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1272 2008-08-14 Simon Goldschmidt
1273 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1274 tcp_close returns != ERR_OK)
1276 2008-07-08 Frédéric Bernon
1277 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1278 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1280 2008-06-24 Jonathan Larmour
1281 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1282 if tcp_seg_copy fails.
1284 2008-06-17 Simon Goldschmidt
1285 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1286 and created defines for swapping bytes and folding u32 to u16.
1288 2008-05-30 Kieran Mansley
1289 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1290 rather than rcv_ann_wnd when deciding if packets are in-window.
1291 Contributed by <arasmussen@consultant.datasys.swri.edu>
1293 2008-05-30 Kieran Mansley
1294 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1295 passing as function pointers when MEM_LIBC_MALLOC is defined.
1297 2008-05-09 Jonathan Larmour
1298 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1299 stop it being treated as a fatal error.
1301 2008-04-15 Simon Goldschmidt
1302 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1305 2008-03-27 Simon Goldschmidt
1306 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1307 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1308 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1309 or heap memory from interrupt context
1311 2008-03-26 Simon Goldschmidt
1312 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1313 host sent a zero mss as TCP option.
1320 2008-03-10 Jonathan Larmour
1321 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1322 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1324 2008-01-22 Frédéric Bernon
1325 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1326 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1328 2008-01-14 Frédéric Bernon
1329 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1330 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1331 tcp_recv callback (see rawapi.txt).
1333 2008-01-14 Frédéric Bernon, Marc Chaland
1334 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1336 2008-01-12 Frédéric Bernon
1337 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1338 netconn::sem per netconn::op_completed like suggested for the task #7490
1339 "Add return value to sys_mbox_post".
1341 2008-01-12 Frédéric Bernon
1342 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1343 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1344 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1346 2008-01-10 Frédéric Bernon
1347 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1348 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1349 "blocking" ("block" parameter = 1).
1351 2008-01-10 Frédéric Bernon
1352 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1353 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1354 "Add return value to sys_mbox_post".
1356 2008-01-05 Frédéric Bernon
1357 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1358 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1359 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1360 indicate the number of pointers query by the mailbox. There is three defines
1361 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1362 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1363 parameter in your implementation, but to ignore it to keep the previous behavior.
1364 The new sys_mbox_trypost function return a value to know if the mailbox is
1365 full or if the message is posted. Take a look to sys_arch.txt for more details.
1366 This new function is used in tcpip_input (so, can be called in an interrupt
1367 context since the function is not blocking), and in recv_udp and recv_raw.
1369 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1370 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1371 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1372 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1373 documentation in the rawapi.txt file.
1375 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1376 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1378 2007-12-31 Frédéric Bernon, Luca Ceresoli
1379 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1380 in autoip". The change in etharp_raw could be removed, since all calls to
1381 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1382 wrong in the future.
1384 2007-12-30 Frédéric Bernon, Tom Evans
1385 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1386 Filtering" reported by Tom Evans.
1388 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1389 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1390 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1391 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1392 keep accepting new connections.
1394 2007-12-13 Frédéric Bernon
1395 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1396 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1398 2007-12-12 Frédéric Bernon
1399 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1400 are the one which have ram usage.
1402 2007-12-05 Frédéric Bernon
1403 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1404 set of variables (=0) or a local one (=1). In this last case, your port should
1405 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1406 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1408 2007-12-03 Simon Goldschmidt
1409 * ip.c: ip_input: check if a packet is for inp first before checking all other
1410 netifs on netif_list (speeds up packet receiving in most cases)
1412 2007-11-30 Simon Goldschmidt
1413 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1414 UDP: move a (connected) pcb selected for input to the front of the list of
1415 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1418 2007-11-28 Simon Goldschmidt
1419 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1421 2007-11-25 Simon Goldschmidt
1422 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1425 2007-11-24 Simon Goldschmidt
1426 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1427 to the new file netdb.c; included lwip_getaddrinfo.
1429 2007-11-21 Simon Goldschmidt
1430 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1431 based on the MTU of the netif used to send. Enabled by default. Disable by
1432 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1434 2007-11-19 Frédéric Bernon
1435 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1436 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1437 copy dns payload to parse the response), return an error if there is no place
1438 for a new query, and fix some minor problems.
1440 2007-11-16 Simon Goldschmidt
1441 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1442 removed files: core/inet.c, core/inet6.c
1443 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1444 inet and chksum part; changed includes in all lwIP files as appropriate
1446 2007-11-16 Simon Goldschmidt
1447 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1448 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1449 (gethostbyname/gethostbyname_r).
1451 2007-11-15 Jim Pettinato, Frédéric Bernon
1452 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1453 requests with RAW api interface. Initialization is done in lwip_init() with
1454 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1455 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1456 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1457 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1458 list with points to improve.
1460 2007-11-06 Simon Goldschmidt
1461 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1462 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1463 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1465 2007-11-06 Simon Goldschmidt
1466 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1467 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1468 implementation from netconn api applications.
1470 2007-11-03 Frédéric Bernon
1471 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1472 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1473 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1474 it. This is a first release which have to be improve for TCP. Note it used the
1475 netconn::recv_avail which need to be more "thread-safe" (note there is already
1476 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1478 2007-11-01 Frédéric Bernon, Marc Chaland
1479 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1480 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1481 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1482 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1483 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1485 2007-10-24 Frédéric Bernon
1486 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1487 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1488 some code (like we have talk in "patch #5919 : Create compile switch to remove
1489 select code"), but it could be done later.
1491 2007-10-08 Simon Goldschmidt
1492 * many files: Changed initialization: many init functions are not needed any
1493 more since we now rely on the compiler initializing global and static
1496 2007-10-06 Simon Goldschmidt
1497 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1498 to enqueue the received pbufs so that multiple packets can be reassembled
1499 simultaneously and no static reassembly buffer is needed.
1501 2007-10-05 Simon Goldschmidt
1502 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1503 all netifs (or ports) can use it.
1505 2007-10-05 Frédéric Bernon
1506 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1507 common function to reduce a little bit the footprint (for all functions using
1508 only the "netif" parameter).
1510 2007-10-03 Frédéric Bernon
1511 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1512 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1513 a little bit the footprint (for all functions using only the "netif" parameter).
1515 2007-09-15 Frédéric Bernon
1516 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1517 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1518 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1519 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1521 2007-09-10 Frédéric Bernon
1522 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1523 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1524 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1525 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1526 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1527 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1528 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1529 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1530 when it's queried (any direct call to "sysuptime" is changed by a call to
1531 snmp_get_sysuptime).
1533 2007-09-09 Frédéric Bernon, Bill Florac
1534 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1535 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1536 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1537 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1538 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1539 the next query message to receive the matching multicast streams).
1541 2007-09-08 Frédéric Bernon
1542 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1543 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1544 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1545 Enable to access to these fields with LWIP_TCP=0.
1547 2007-09-05 Frédéric Bernon
1548 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1549 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1550 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1551 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1552 help to reduce footprint, and to reduce "visibility" on the Internet.
1554 2007-09-05 Frédéric Bernon, Bill Florac
1555 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1556 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1557 parameters have to be provided: a task name, and a task stack size. For this
1558 one, since it's platform dependant, you could define the best one for you in
1559 your lwipopts.h. For port maintainers, you can just add these new parameters
1560 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1563 2007-09-05 Frédéric Bernon
1564 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1565 inside init.c for task #7142 "Sanity check user-configurable values".
1567 2007-09-04 Frédéric Bernon, Bill Florac
1568 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1569 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1570 value). It will avoid potential fragmentation problems, use a counter to know
1571 how many times a group is used on an netif, and free it when all applications
1572 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1573 check if LWIP_IGMP!=0).
1575 2007-09-03 Frédéric Bernon
1576 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1577 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1578 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1579 and/or the "interface" field (for netconn layer), for join/leave operations.
1580 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1581 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1583 2007-08-30 Frédéric Bernon
1584 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1585 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1586 with other API (application based on raw API, or future "socket2" API). Ports
1587 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1589 2007-08-30 Frédéric Bernon, Jonathan Larmour
1590 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1591 user-configurable values".
1593 2007-08-29 Frédéric Bernon
1594 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1595 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1596 spirit than the others modules. Modify some IGMP debug traces.
1598 2007-08-29 Frédéric Bernon
1599 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1600 Add lwip_init function to regroup all modules initializations, and to provide
1601 a place to add code for task #7142 "Sanity check user-configurable values".
1602 Ports maintainers should remove direct initializations calls from their code,
1603 and add init.c in their makefiles. Note that lwip_init() function is called
1604 inside tcpip_init, but can also be used by raw api users since all calls are
1605 disabled when matching options are disabled. Also note that their is new options
1606 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1608 2007-08-26 Marc Boucher
1609 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1610 since they can under certain circumstances be called with an invalid conn
1611 pointer after the connection has been closed (and conn has been freed).
1613 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1614 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1615 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1617 2007-08-22 Frédéric Bernon
1618 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1619 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1621 2007-08-22 Frédéric Bernon
1622 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1623 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1624 name is tcpip_input (we keep the name of 1.2.0 function).
1626 2007-08-17 Jared Grubb
1627 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1628 settings into new memp_std.h and optional user file lwippools.h. This adds
1629 more dynamic mempools, and allows the user to create an arbitrary number of
1630 mempools for mem_malloc.
1632 2007-08-16 Marc Boucher
1633 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1634 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1635 close the connection.
1637 2007-08-16 Marc Boucher
1638 * sockets.c: lwip_accept(): check netconn_peer() error return.
1640 2007-08-16 Marc Boucher
1641 * mem.c, mem.h: Added mem_calloc().
1643 2007-08-16 Marc Boucher
1644 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1645 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1646 and starving other message types.
1647 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1649 2007-08-16 Marc Boucher
1650 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1651 type and flgs (later renamed to flags).
1652 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1653 Improved lwip_recvfrom(). TCP push now propagated.
1655 2007-08-16 Marc Boucher
1656 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1659 2007-08-16 Marc Boucher
1660 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1661 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1662 Added PPPoE support and various PPP improvements.
1664 2007-07-25 Simon Goldschmidt
1665 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1666 making netbuf_copy_partial use this function.
1668 2007-07-25 Simon Goldschmidt
1669 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1670 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1673 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1674 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1675 a link callback in the netif struct, and functions to handle it. Be carefull
1676 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1677 if you want to be sure to be compatible with future changes...
1679 2007-06-30 Frédéric Bernon
1680 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1682 2007-06-21 Simon Goldschmidt
1683 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1684 LWIP_AUTOIP =0 and =1 to remove redundant code.
1686 2007-06-21 Simon Goldschmidt
1687 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1688 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1689 heap. This both prevents memory fragmentation and gives a higher speed
1690 at the cost of more memory consumption. Turned off by default.
1692 2007-06-21 Simon Goldschmidt
1693 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1694 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1695 int to be able to send a bigger buffer than 64K with one time (mainly
1696 used from lwip_send).
1698 2007-06-21 Simon Goldschmidt
1699 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1700 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1702 2007-06-21 Simon Goldschmidt
1703 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1704 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1705 changes on low memory or empty send-buffer.
1707 2007-06-18 Simon Goldschmidt
1708 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1709 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1710 used for ethernet and struct eth_addr already had a defined length of 6).
1712 2007-06-17 Simon Goldschmidt
1713 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1714 to disable UDP checksum generation on transmit.
1716 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1717 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1718 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1719 this macro to check "conn" parameter in api_msg.c functions.
1721 2007-06-11 Simon Goldschmidt
1722 * sockets.c, sockets.h: Added UDP lite support for sockets
1724 2007-06-10 Simon Goldschmidt
1725 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1726 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1729 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1730 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1731 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1732 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1733 (see TODO mark in the source code).
1735 2007-06-09 Simon Goldschmidt
1736 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1737 etharp_output() to match netif->output so etharp_output() can be used
1738 directly as netif->output to save one function call.
1740 2007-06-08 Simon Goldschmidt
1741 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1742 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1743 added initialization of those to ethernetif, slipif and loopif.
1745 2007-05-18 Simon Goldschmidt
1746 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1747 (defaulting to off for now) that can be set to 0 to send fragmented
1748 packets by passing PBUF_REFs down the stack.
1750 2007-05-23 Frédéric Bernon
1751 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1752 connections, such present in patch #5959.
1754 2007-05-23 Frédéric Bernon
1755 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1756 code in only one part...
1758 2007-05-18 Simon Goldschmidt
1759 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1760 elements to overflow. This is achieved by adding some bytes before and after
1761 each pool element (increasing their size, of course), filling them with a
1762 prominent value and checking them on freeing the element.
1763 Set it to 2 to also check every element in every pool each time memp_malloc()
1764 or memp_free() is called (slower but more helpful).
1766 2007-05-10 Simon Goldschmidt
1767 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1768 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1771 2007-05-11 Frédéric Bernon
1772 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1773 Include a function pointer instead of a table index in the message to reduce
1774 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1775 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1777 2007-05-10 Simon Goldschmidt
1778 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1779 \ extern "C" {' in all header files. Now you can write your application using
1780 the lwIP stack in C++ and simply #include the core files. Note I have left
1781 out the netif/ppp/*h header files for now, since I don't know which files are
1782 included by applications and which are for internal use only.
1784 2007-05-09 Simon Goldschmidt
1785 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1786 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1787 situations where some compilers might inline the copy and save a function
1788 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1790 2007-05-08 Simon Goldschmidt
1791 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1792 to be overriden in case the C-library malloc implementation is not protected
1793 against concurrent access.
1795 2007-05-04 Simon Goldschmidt (Atte Kojo)
1796 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1797 multiple packets to the same host.
1799 2007-05-04 Frédéric Bernon, Jonathan Larmour
1800 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1801 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1802 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1803 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1804 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1805 these fields are now renamed "addr" & "port".
1807 2007-04-11 Jonathan Larmour
1808 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1809 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1810 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1811 by the port in sys_arch.h if desired.
1813 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1814 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1815 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1816 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1818 2007-04-05 Frédéric Bernon
1819 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1821 2007-04-04 Simon Goldschmidt
1822 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1823 use this for and architecture-independent form to tell the compiler you intentionally
1824 are not using this variable. Can be overriden in cc.h.
1826 2007-03-28 Frédéric Bernon
1827 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1828 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1829 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1830 It will be used by DHCP to register a client hostname, but can also be use when you call
1833 2007-03-28 Frédéric Bernon
1834 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1835 initialize a network interface's flag with. It tell this interface is an ethernet
1836 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1837 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1839 2007-03-26 Frédéric Bernon, Jonathan Larmour
1840 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1841 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1842 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1843 is done in tcpip_init function.
1845 2007-03-22 Frédéric Bernon
1846 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1847 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1848 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1849 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1850 but never used. Fix msg_in.c with the correct #if test for a stat display.
1852 2007-03-21 Kieran Mansley
1853 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1854 Provides callback on netif up/down state change.
1856 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1857 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1858 ip.c, netif.h, tcpip.c, opt.h:
1859 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1860 filter per all network interfaces. Declare a new function in netif to enable to
1861 control the MAC filter (to reduce lwIP traffic processing).
1863 2007-03-11 Frédéric Bernon
1864 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1865 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1866 unless you know what you're doing (default are RFC1122 compliant). Note
1867 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1869 2007-03-08 Frédéric Bernon
1870 * tcp.h: Keepalive values can be configured at compile time, but don't change
1871 this unless you know what you're doing (default are RFC1122 compliant).
1873 2007-03-08 Frédéric Bernon
1874 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1875 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1876 on UDP sockets/netconn.
1878 2007-03-08 Simon Goldschmidt
1879 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1881 2007-03-06 Frédéric Bernon
1882 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1883 Implement SO_RCVTIMEO on UDP sockets/netconn.
1885 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1886 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1887 on the stack and remove the API msg type from memp
1889 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1890 * sockets.h, sockets.c: Move socket initialization to new
1891 lwip_socket_init() function.
1892 NOTE: this changes the API with ports. Ports will have to be
1893 updated to call lwip_socket_init() now.
1895 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1896 * api_lib.c: Use memcpy in netbuf_copy_partial.
1901 2008-03-17 Frédéric Bernon, Ed Kerekes
1902 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1903 some problems to fill the IP header on some targets, use now the
1904 ip.h macros to do it).
1906 2008-03-13 Frédéric Bernon
1907 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1908 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1909 TCP connection caused a crash. Note that using (lwip_)recvfrom
1910 like this is a bit slow and that using (lwip)getpeername is the
1911 good lwip way to do it (so, using recv is faster on tcp sockets).
1913 2008-03-12 Frédéric Bernon, Jonathan Larmour
1914 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1915 recv_raw() does not consume data", and the ping sample (with
1916 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1917 returned the IP payload, without the IP header).
1919 2008-03-04 Jonathan Larmour
1920 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1921 and/or warnings on some systems where mem_size_t and size_t differ.
1922 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1924 2008-03-04 Kieran Mansley (contributions by others)
1925 * Numerous small compiler error/warning fixes from contributions to
1926 mailing list after 1.3.0 release candidate made.
1928 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1929 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1931 2008-01-15 Kieran Mansley
1932 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1933 prevented from sending by a small send window, not just a zero
1936 2008-01-09 Jonathan Larmour
1937 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1938 conflict with Linux system headers.
1940 2008-01-06 Jonathan Larmour
1941 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1942 address entirely on receiving a DHCPNAK, and restarting discovery.
1944 2007-12-21 Simon Goldschmidt
1945 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1946 is not protected" by using new macros for interlocked access to modify/test
1947 netconn->recv_avail.
1949 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1950 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1952 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1953 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1954 of silly window avoidance and prevent lwIP from shrinking the window)
1956 2007-12-04 Simon Goldschmidt
1957 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1958 data packet was lost): add assert that all segment lists are empty in
1959 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1960 state from LAST_ACK in tcp_process
1962 2007-12-02 Simon Goldschmidt
1963 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1964 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1965 has to be set to 0 in lwipopts.h
1967 2007-12-02 Simon Goldschmidt
1968 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1969 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1970 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1971 This is a fix for thread-safety and allocates all items needed for a netconn
1972 when the netconn is created.
1974 2007-11-30 Simon Goldschmidt
1975 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1976 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1977 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1978 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1980 2007-11-27 Simon Goldschmidt
1981 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1982 letting ip_route only use netifs that are up.
1984 2007-11-27 Simon Goldschmidt
1985 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1986 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1987 sockets block most operations once they have seen a fatal error.
1989 2007-11-27 Simon Goldschmidt
1990 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1991 netif to send as an argument (to be able to send on netifs that are down).
1993 2007-11-26 Simon Goldschmidt
1994 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1997 2007-11-21 Simon Goldschmidt
1998 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1999 Fixed the nagle algorithm; nagle now also works for all raw API applications
2000 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2002 2007-11-12 Frédéric Bernon
2003 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2004 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2005 context in do_getaddr.
2007 2007-11-10 Simon Goldschmidt
2008 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2009 happen any time). Now the packet simply isn't enqueued when out of memory.
2011 2007-11-01 Simon Goldschmidt
2012 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2013 TCP_MSS if that is smaller) as long as no MSS option is received from the
2016 2007-11-01 Simon Goldschmidt
2017 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2018 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2019 sending our configured TCP_MSS instead of the one received).
2021 2007-11-01 Simon Goldschmidt
2022 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2023 calculated based on the configured TCP_MSS, not on the MSS option received
2026 2007-10-09 Simon Goldschmidt
2027 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2028 short and also was generated wrong if checksum coverage != tot_len;
2029 receive: checksum was calculated wrong if checksum coverage != tot_len
2031 2007-10-08 Simon Goldschmidt
2032 * mem.c: lfree was not updated in mem_realloc!
2034 2007-10-07 Frédéric Bernon
2035 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2036 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2037 this change cause an API breakage for netconn_addr, since a parameter
2038 type change. Any compiler should cause an error without any changes in
2039 yours netconn_peer calls (so, it can't be a "silent change"). It also
2040 reduce a little bit the footprint for socket layer (lwip_getpeername &
2041 lwip_getsockname use now a common lwip_getaddrname function since
2042 netconn_peer & netconn_addr have the same parameters).
2044 2007-09-20 Simon Goldschmidt
2045 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2046 by checking tcp_tw_pcbs also
2048 2007-09-19 Simon Goldschmidt
2049 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2051 2007-09-15 Mike Kleshov
2052 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2054 2007-09-06 Frédéric Bernon
2055 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2056 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2057 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2058 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2060 2007-08-30 Frédéric Bernon
2061 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2062 and fix some coding style.
2064 2007-08-28 Frédéric Bernon
2065 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2066 kind of packets. These packets are considered like Ethernet packets (payload
2067 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2068 are considered like IP packets (payload pointing to iphdr).
2070 2007-08-27 Frédéric Bernon
2071 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2072 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2073 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2075 2007-08-24 Kieran Mansley
2076 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2077 compiler (Paradigm C++)
2079 2007-08-09 Frédéric Bernon, Bill Florac
2080 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2081 Introduce IGMP_STATS to centralize statistics management.
2083 2007-08-09 Frédéric Bernon, Bill Florac
2084 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2085 packet on a udp pcb binded on an netif's IP address, and not on "any".
2087 2007-08-09 Frédéric Bernon, Bill Florac
2088 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2089 This is mainly on using lookup/lookfor, and some coding styles...
2091 2007-07-26 Frédéric Bernon (and "thedoctor")
2092 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2094 2007-07-25 Simon Goldschmidt
2095 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2096 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2097 (tcp_output is called again later from tcp timers).
2099 2007-07-25 Simon Goldschmidt
2100 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2101 copy_from_pbuf, which illegally modified the given pbuf.
2103 2007-07-25 Simon Goldschmidt
2104 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2105 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2107 2007-07-24 Simon Goldschmidt
2108 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2109 correct state (must be CLOSED).
2111 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2112 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2113 allocation. It now returns NULL.
2115 2007-07-13 Frédéric Bernon
2116 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2119 2007-07-13 Frédéric Bernon
2120 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2121 because current code doesn't follow rawapi.txt documentation.
2123 2007-07-13 Kieran Mansley
2124 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2125 out of sequence processing of received packets
2127 2007-07-03 Simon Goldschmidt
2128 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2129 assumption is made that this pbuf is in one piece (i.e. not chained). These
2130 assumptions clash with the possibility of converting to fully pool-based
2131 pbuf implementations, where PBUF_RAM pbufs might be chained.
2133 2007-07-03 Simon Goldschmidt
2134 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2135 when closing tcp netconns: removed conn->sem, less context switches when
2136 closing, both netconn_close and netconn_delete should safely close tcp
2139 2007-07-02 Simon Goldschmidt
2140 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2141 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2142 to cache ARP table indices with each pcb instead of single-entry cache for
2145 2007-07-02 Simon Goldschmidt
2146 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2147 warnings when assigning to smaller types.
2149 2007-06-28 Simon Goldschmidt
2150 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2152 2007-06-28 Simon Goldschmidt
2153 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2154 a segment contained chained pbufs)
2156 2007-06-28 Frédéric Bernon
2157 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2158 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2159 possible to define this macro in your own lwipopts.h to always use C library's
2160 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2162 2007-06-28 Frédéric Bernon
2163 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2164 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2165 in api_lib/api_msg (use pointers and not type with table, etc...)
2167 2007-06-26 Simon Goldschmidt
2168 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2170 2007-06-25 Simon Goldschmidt
2171 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2172 for udp packets with no matching pcb.
2174 2007-06-25 Simon Goldschmidt
2175 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2176 could get udp input packets if the remote side matched.
2178 2007-06-13 Simon Goldschmidt
2179 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2180 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2182 2007-06-13 Simon Goldschmidt
2183 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2184 -> netconn_new_..() does not allocate a new connection for unsupported
2187 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2188 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2189 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2191 2007-06-13 Frédéric Bernon, Matthias Weisser
2192 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2193 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2194 some macro names collision with some OS macros.
2196 2007-06-11 Simon Goldschmidt
2197 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2198 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2199 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2202 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2203 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2204 where TCP flags wasn't initialized in tcp_keepalive.
2206 2007-06-03 Simon Goldschmidt
2207 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2208 registered, p->payload was modified without modifying p->len if sending
2209 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2211 2007-06-03 Simon Goldschmidt
2212 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2213 re-used the input pbuf even if that didn't have enough space to include the
2214 link headers. Now the space is tested and a new pbuf is allocated for the
2215 echo response packet if the echo request pbuf isn't big enough.
2217 2007-06-01 Simon Goldschmidt
2218 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2220 2007-05-23 Frédéric Bernon
2221 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2222 allocated by do_listen if success) and netconn_accept errors handling. In
2223 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2224 by ASSERT, except for netconn_delete.
2226 2007-05-23 Frédéric Bernon
2227 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2228 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2229 directly close the recvmbox).
2231 2007-05-22 Simon Goldschmidt
2232 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2233 bound but unconnected (and non-listening) tcp_pcbs.
2235 2007-05-22 Frédéric Bernon
2236 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2237 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2238 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2239 like "sys_timeout" in their application threads.
2241 2007-05-22 Frédéric Bernon
2242 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2243 which parameters are used by which do_xxx function, and to avoid "misusing"
2244 parameters (patch #5938).
2246 2007-05-22 Simon Goldschmidt
2247 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2248 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2249 is only 8 bits wide. This affects the api, as there, the protocol was
2252 2007-05-18 Simon Goldschmidt
2253 * memp.c: addition to patch #5913: smaller pointer was returned but
2254 memp_memory was the same size -> did not save memory.
2256 2007-05-16 Simon Goldschmidt
2257 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2260 2007-05-16 Simon Goldschmidt
2261 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2262 as the one of the netif used for sending to prevent sending from old
2263 addresses after a netif address gets changed (partly fixes bug #3168).
2265 2007-05-16 Frédéric Bernon
2266 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2267 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2268 tcpip_init) because we have to be sure that network interfaces are already
2269 added (mac filter is updated only in igmp_init for the moment).
2271 2007-05-16 Simon Goldschmidt
2272 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2273 into sys_arch_sem_wait calls to prevent timers from running while waiting
2274 for the heap. This fixes bug #19167.
2276 2007-05-13 Simon Goldschmidt
2277 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2278 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2281 2007-05-07 Simon Goldschmidt
2282 * mem.c: Another attempt to fix bug #17922.
2284 2007-05-04 Simon Goldschmidt
2285 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2286 implementation so that it can be reused (don't allocate the target
2287 pbuf inside pbuf_copy()).
2289 2007-05-04 Simon Goldschmidt
2290 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2291 to save a little RAM (next pointer of memp is not used while not in pool).
2294 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2297 2007-04-23 Simon Goldschmidt
2298 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2299 in NULL reference for incoming TCP packets". Loopif has to be configured
2300 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2301 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2302 putting packets on a list that is fed to the stack by calling loopif_poll()
2303 (single-thread / NO_SYS / polling environment where e.g.
2304 netif->input() = ip_input).
2306 2007-04-17 Jonathan Larmour
2307 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2308 the difference between two u16_t's.
2309 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2310 MEMP_NUM_NETCONN in sockets.c right now.
2312 2007-04-12 Jonathan Larmour
2313 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2315 2007-04-12 Kieran Mansley
2316 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2317 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2319 2007-04-11 Simon Goldschmidt
2320 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2321 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2322 pbuf.c: removed functions no needed any more (by etharp).
2324 2007-04-11 Kieran Mansley
2325 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2326 "Constant is long" warnings with 16bit compilers. Contributed by
2327 avatar@mmlab.cse.yzu.edu.tw
2329 2007-04-05 Frédéric Bernon, Jonathan Larmour
2330 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2331 the mailbox is active". Now, the post is only done during a connect, and do_send,
2332 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2334 2007-04-03 Frédéric Bernon
2335 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2336 packets. See patch #5834.
2338 2007-03-30 Frédéric Bernon
2339 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2340 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2342 2007-03-30 Frédéric Bernon
2343 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2344 others environment defines (these were too "generic").
2346 2007-03-28 Frédéric Bernon
2347 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2348 result and can cause a crash. lwip_send now check netbuf_ref result.
2350 2007-03-28 Simon Goldschmidt
2351 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2352 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2353 defined. This is the way it should have been already (looking at
2356 2007-03-28 Kieran Mansley
2357 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2358 IP and TCP headers *and* physical link headers
2360 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2361 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2362 to send some garbage. It is not a definitive solution, but the patch does solve
2363 the problem for most cases.
2365 2007-03-22 Frédéric Bernon
2366 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2368 2007-03-22 Frédéric Bernon
2369 * api_lib.c: somes resources couldn't be freed if there was errors during
2370 netconn_new_with_proto_and_callback.
2372 2007-03-22 Frédéric Bernon
2373 * ethernetif.c: update netif->input calls to check return value. In older ports,
2374 it's a good idea to upgrade them, even if before, there could be another problem
2375 (access to an uninitialized mailbox).
2377 2007-03-21 Simon Goldschmidt
2378 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2379 by casting to unsigned).
2381 2007-03-21 Frédéric Bernon
2382 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2383 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2384 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2385 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2386 faster and more reliable communication between api_lib and tcpip.
2388 2007-03-21 Frédéric Bernon
2389 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2391 2007-03-21 Frédéric Bernon
2392 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2394 2007-03-21 Kieran Mansley
2395 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2398 2007-03-21 Kieran Mansley
2399 * Fix all uses of pbuf_header to check the return value. In some
2400 cases just assert if it fails as I'm not sure how to fix them, but
2401 this is no worse than before when they would carry on regardless
2404 2007-03-21 Kieran Mansley
2405 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2406 comment out missing header include in icmp.c
2408 2007-03-20 Frédéric Bernon
2409 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2410 synchronized with memp.h.
2412 2007-03-20 Frédéric Bernon
2413 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2414 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2415 network interfaces. Also fix a compiler warning.
2417 2007-03-20 Kieran Mansley
2418 * udp.c: Only try and use pbuf_header() to make space for headers if
2419 not a ROM or REF pbuf.
2421 2007-03-19 Frédéric Bernon
2422 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2425 2007-03-19 Frédéric Bernon
2426 * Remove unimplemented "memp_realloc" function from memp.h.
2428 2007-03-11 Simon Goldschmidt
2429 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2432 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2433 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2434 (missing `const' qualifier in socket functions), to get more compatible to
2435 standard POSIX sockets.
2437 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2438 * sockets.c: Add asserts inside bind, connect and sendto to check input
2439 parameters. Remove excessive set_errno() calls after get_socket(), because
2440 errno is set inside of get_socket(). Move last sock_set_errno() inside
2443 2007-03-09 Simon Goldschmidt
2444 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2445 was allocated too small.
2447 2007-03-06 Simon Goldschmidt
2448 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2449 the stack from concurrent access.
2451 2007-03-06 Frédéric Bernon, Dmitry Potapov
2452 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2453 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2455 2007-03-06 Simon Goldschmidt
2456 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2457 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2459 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2460 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2461 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2462 Allow to do ARP processing for incoming packets inside tcpip_thread
2463 (protecting ARP layer against concurrent access). You can also disable
2464 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2465 Older ports have to use tcpip_ethinput.
2467 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2468 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2469 from pointer target type"
2471 2007-03-05 Frédéric Bernon
2472 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2473 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2475 2007-03-04 Frédéric Bernon
2476 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2479 2007-03-04 Frédéric Bernon
2480 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2482 The api_msg struct stay on the stack (not moved to netconn struct).
2484 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2485 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2486 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2487 Also fixed cast warning in pbuf_alloc()
2489 2007-03-04 Simon Goldschmidt
2490 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2491 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2493 2007-03-03 Frédéric Bernon
2494 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2495 It is static, and never used in udp.c except udp_init().
2497 2007-03-02 Simon Goldschmidt
2498 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2499 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2500 initialized before tcpip_thread is running (e.g. before OS is started)
2502 2007-03-02 Frédéric Bernon
2503 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2506 2007-02-28 Kieran Mansley
2507 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2508 outside the region of the pbuf by pbuf_header()
2510 2007-02-28 Kieran Mansley
2511 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2512 when supplied timeout is also non-zero
2516 2006-12-05 Leon Woestenberg
2517 * CHANGELOG: Mention STABLE-1.2.0 release.
2521 2006-12-01 Christiaan Simons
2522 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2523 Note this is a workaround. Currently I have no other options left.
2525 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2526 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2527 to include/lwip/opt.h.
2528 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2529 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2530 * opt.h: Add above new options.
2532 2006-08-18 Christiaan Simons
2533 * tcp_{in,out}.c: added SNMP counters.
2534 * ipv4/ip.c: added SNMP counters.
2535 * ipv4/ip_frag.c: added SNMP counters.
2537 2006-08-08 Christiaan Simons
2538 * etharp.{c,h}: added etharp_find_addr() to read
2539 (stable) ethernet/IP address pair from ARP table
2541 2006-07-14 Christiaan Simons
2542 * mib_structs.c: added
2543 * include/lwip/snmp_structs.h: added
2544 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2546 2006-07-06 Christiaan Simons
2547 * snmp/asn1_{enc,dec}.c added
2549 * snmp/msg_{in,out}.c added
2550 * include/lwip/snmp_asn1.h added
2551 * include/lwip/snmp_msg.h added
2552 * doc/snmp_agent.txt added
2554 2006-03-29 Christiaan Simons
2555 * inet.c, inet.h: Added platform byteswap support.
2556 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2557 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2561 2006-11-30 Christiaan Simons
2562 * dhcp.c: Fixed false triggers of request_timeout.
2564 2006-11-28 Christiaan Simons
2565 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2567 2006-10-11 Christiaan Simons
2568 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2569 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2570 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2571 identifier from 170 to 136 (bug #17574).
2573 2006-10-10 Christiaan Simons
2574 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2576 2006-08-17 Christiaan Simons
2577 * udp.c: Fixed bug #17200, added check for broadcast
2578 destinations for PCBs bound to a unicast address.
2580 2006-08-07 Christiaan Simons
2581 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2583 2006-06-27 Christiaan Simons
2584 * api_msg.c: Applied patch for cold case (bug #11135).
2585 In accept_function() ensure newconn->callback is always initialized.
2587 2006-06-15 Christiaan Simons
2588 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2589 facilitate printing of mem_size_t and u16_t statistics.
2591 2006-06-14 Christiaan Simons
2592 * api_msg.c: Applied patch #5146 to handle allocation failures
2593 in accept() by Kevin Lawson.
2595 2006-05-26 Christiaan Simons
2596 * api_lib.c: Removed conn->sem creation and destruction
2597 from netconn_write() and added sys_sem_new to netconn_new_*.
2601 2006-03-03 Christiaan Simons
2602 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2603 access and added pbuf_alloc() return value checks.
2605 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2606 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2607 now handled by the checksum routine properly.
2609 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2610 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2611 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2613 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2614 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2615 submitted by Mitrani Hiroshi.
2617 2005-12-15 Christiaan Simons
2618 * inet.c: Disabled the added summing routine to preserve code space.
2620 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2621 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2622 Added Curt McDowell's optimized checksumming routine for future
2623 inclusion. Need to create test case for unaliged, aligned, odd,
2624 even length combination of cases on various endianess machines.
2626 2005-12-09 Christiaan Simons
2627 * inet.c: Rewrote standard checksum routine in proper portable C.
2629 2005-11-25 Christiaan Simons
2630 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2631 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2632 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2634 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2635 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2636 routine by Peter Jolasson.
2637 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2639 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2640 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2641 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2643 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2644 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2646 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2647 * udp.c: UDP pcb->recv() was called even when it was NULL.
2651 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2652 * etharp.*: Disabled multiple packets on the ARP queue.
2653 This clashes with TCP queueing.
2655 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2656 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2657 Halved the ARP period, doubled the period counts.
2658 ETHARP_MAX_PENDING now should be at least 2. This prevents
2659 the counter from reaching 0 right away (which would allow
2660 too little time for ARP responses to be received).
2662 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2663 * dhcp.c: Decline messages were not multicast but unicast.
2664 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2665 Do not try hard to insert arbitrary packet's source address,
2666 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2667 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2668 querying an address will see it appear in the cache (DHCP could
2669 suffer from this when a server invalidly gave an in-use address.)
2670 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2671 comparing network addresses (identifiers), not the network masks
2673 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2674 IP address actually belongs to the network of the given interface.
2676 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2677 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2681 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2682 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2683 even if one is already pending, if the rcv_wnd is above a threshold
2684 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2685 delayed ACK in order to open the window if the stack is only receiving data.
2687 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2688 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2690 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2691 * etharp.c: Make sure the first pbuf queued on an ARP entry
2692 is properly ref counted.
2694 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2695 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2696 warnings about comparison.
2697 * pbuf.c: Stopped compiler complaining of empty if statement
2698 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2699 * tcp.c: Stopped compiler complaining of empty if statement
2700 when LWIP_DEBUGF() empty.
2701 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2702 * inet.c: Added a couple of casts to quiet the compiler.
2703 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2705 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2706 * inet.c: Made data types consistent in inet_ntoa().
2707 Added casts for return values of checksum routines, to pacify compiler.
2708 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2709 Small corrections to some debugging statements, to pacify compiler.
2711 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2712 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2713 * ethernetif.c Updated low_level_output() to match prototype for
2714 netif->linkoutput and changed low_level_input() similarly for consistency.
2715 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2716 of raw_recv() in raw.h and so avoid compiler error.
2717 * sockets.c: Added trivial (int) cast to keep compiler happier.
2718 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2724 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2725 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2726 your cc.h file defines this either 1 or 0. If non-defined,
2728 * .c: Added <string.h> and <errno.h> includes where used.
2729 * etharp.c: Made some array indices unsigned.
2731 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2732 * netif.*: Added netif_set_up()/down().
2733 * dhcp.c: Changes to restart program flow.
2735 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2736 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2737 single-pass lookup for different candidates. Should exploit locality.
2739 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2740 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2741 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2742 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2743 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2747 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2748 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2749 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2750 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2751 is to prefix the 14-bit Ethernet headers with two padding bytes.
2753 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2754 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2755 * etharp.c: Fixed the case where the packet that initiates the ARP request
2756 is not queued, and gets lost. Fixed the case where the packets destination
2757 address is already known; we now always queue the packet and perform an ARP
2764 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2765 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2766 * Fixed two possible NULL references in rare cases.
2772 * Fixed DHCP which did not include the IP address in DECLINE messages.
2776 * etharp.c has been hauled over a bit.
2782 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2783 * Packets sent from ARP queue had invalid source hardware address.
2787 * Pass-by ARP requests do now update the cache.
2791 * No longer dependent on ctype.h.
2792 * New socket options.
2793 * Raw IP pcb support.
2799 * Some debug formatters and casts fixed.
2800 * Numereous fixes in PPP.
2804 * DEBUGF now is LWIP_DEBUGF
2805 * pbuf_dechain() has been re-enabled.
2806 * Mentioned the changed use of CVS branches in README.
2812 * Fixed pool pbuf memory leak in pbuf_alloc().
2813 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2814 Reported by Savin Zlobec.
2816 * PBUF_POOL chains had their tot_len field not set for non-first
2817 pbufs. Fixed in pbuf_alloc().
2821 * Added PPP stack contributed by Marc Boucher
2825 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2827 * ARP queueuing now queues the latest packet instead of the first.
2828 This is the RFC recommended behaviour, but can be overridden in
2835 * TCP has been fixed to deal with the new use of the pbuf->ref
2838 * DHCP dhcp_inform() crash bug fixed.
2842 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2843 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2844 Implemented by David Haas.
2850 * The packet buffer implementation has been enhanced to support
2851 zero-copy and copy-on-demand for packet buffers which have their
2852 payloads in application-managed memory.
2853 Implemented by David Haas.
2855 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2856 if an outgoing packet can be directly sent on the link, or perform
2857 a copy-on-demand when necessary.
2859 The application can safely assume the packet is sent, and the RAM
2860 is available to the application directly after calling udp_send()
2861 or similar function.
2865 * ARP_QUEUEING should now correctly work for all cases, including
2867 Implemented by Leon Woestenberg.
2871 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2872 to a '0.0.0.0' IP address.
2874 * The packet buffer implementation is changed. The pbuf->ref counter
2875 meaning has changed, and several pbuf functions have been
2876 adapted accordingly.
2878 * netif drivers have to be changed to set the hardware address length field
2879 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2880 See the contrib/ports/c16x cs8900 driver as a driver example.
2882 * netif's have a dhcp field that must be initialized to NULL by the driver.
2883 See the contrib/ports/c16x cs8900 driver as a driver example.
2885 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2886 logged in CVS but have not been explained here.
2888 (0.5.3) Changes since version 0.5.2
2892 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2893 threads because it wasn't protected by semaphores.
2897 * struct ip_addr now packed.
2899 * The name of the time variable in arp.c has been changed to ctime
2900 to avoid conflicts with the time() function.
2902 (0.5.2) Changes since version 0.5.1
2906 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2910 * A bug in tcp_parseopt() could cause the stack to hang because of a
2911 malformed TCP option.
2913 * The address of new connections in the accept() function in the BSD
2914 socket library was not handled correctly.
2916 * pbuf_dechain() did not update the ->tot_len field of the tail.
2918 * Aborted TCP connections were not handled correctly in all
2923 * All protocol header structs are now packed.
2925 * The ->len field in the tcp_seg structure now counts the actual
2926 amount of data, and does not add one for SYN and FIN segments.
2928 (0.5.1) Changes since version 0.5.0
2932 * Possible to run as a user process under Linux.
2934 * Preliminary support for cross platform packed structs.
2936 * ARP timer now implemented.
2940 * TCP output queue length was badly initialized when opening
2943 * TCP delayed ACKs were not sent correctly.
2945 * Explicit initialization of BSS segment variables.
2947 * read() in BSD socket library could drop data.
2949 * Problems with memory alignment.
2951 * Situations when all TCP buffers were used could lead to
2954 * TCP MSS option wasn't parsed correctly.
2956 * Problems with UDP checksum calculation.
2958 * IP multicast address tests had endianess problems.
2960 * ARP requests had wrong destination hardware address.
2964 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2966 * A ->linkoutput() member was added to struct netif.
2968 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2970 * ntoh* macros are now null definitions for big endian CPUs.
2972 (0.5.0) Changes since version 0.4.2
2976 * Redesigned operating system emulation layer to make porting easier.
2978 * Better control over TCP output buffers.
2980 * Documenation added.
2984 * Locking issues in buffer management.
2986 * Bugfixes in the sequential API.
2988 * IP forwarding could cause memory leakage. This has been fixed.
2992 * Directory structure somewhat changed; the core/ tree has been
2995 (0.4.2) Changes since version 0.4.1
2999 * Experimental ARP implementation added.
3001 * Skeleton Ethernet driver added.
3003 * Experimental BSD socket API library added.
3007 * In very intense situations, memory leakage could occur. This has
3012 * Variables named "data" and "code" have been renamed in order to
3013 avoid name conflicts in certain compilers.
3015 * Variable++ have in appliciable cases been translated to ++variable
3016 since some compilers generate better code in the latter case.
3018 (0.4.1) Changes since version 0.4
3022 * TCP: Connection attempts time out earlier than data
3023 transmissions. Nagle algorithm implemented. Push flag set on the
3024 last segment in a burst.
3026 * UDP: experimental support for UDP-Lite extensions.
3030 * TCP: out of order segments were in some cases handled incorrectly,
3031 and this has now been fixed. Delayed acknowledgements was broken
3032 in 0.4, has now been fixed. Binding to an address that is in use
3033 now results in an error. Reset connections sometimes hung an
3034 application; this has been fixed.
3036 * Checksum calculation sometimes failed for chained pbufs with odd
3037 lengths. This has been fixed.
3039 * API: a lot of bug fixes in the API. The UDP API has been improved
3040 and tested. Error reporting and handling has been
3041 improved. Logical flaws and race conditions for incoming TCP
3042 connections has been found and removed.
3044 * Memory manager: alignment issues. Reallocating memory sometimes
3045 failed, this has been fixed.
3047 * Generic library: bcopy was flawed and has been fixed.
3051 * API: all datatypes has been changed from generic ones such as
3052 ints, to specified ones such as u16_t. Functions that return
3053 errors now have the correct type (err_t).
3055 * General: A lot of code cleaned up and debugging code removed. Many
3056 portability issues have been fixed.
3058 * The license was changed; the advertising clause was removed.
3062 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3063 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3066 (0.4) Changes since version 0.3.1
3068 * Memory management has been radically changed; instead of
3069 allocating memory from a shared heap, memory for objects that are
3070 rapidly allocated and deallocated is now kept in pools. Allocation
3071 and deallocation from those memory pools is very fast. The shared
3072 heap is still present but is used less frequently.
3074 * The memory, memory pool, and packet buffer subsystems now support
3075 4-, 2-, or 1-byte alignment.
3077 * "Out of memory" situations are handled in a more robust way.
3079 * Stack usage has been reduced.
3081 * Easier configuration of lwIP parameters such as memory usage,
3082 TTLs, statistics gathering, etc. All configuration parameters are
3083 now kept in a single header file "lwipopts.h".
3085 * The directory structure has been changed slightly so that all
3086 architecture specific files are kept under the src/arch
3089 * Error propagation has been improved, both in the protocol modules
3092 * The code for the RTXC architecture has been implemented, tested
3095 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3096 the Internet checksum modules.
3098 * Bugs related to porting between a 32-bit and a 16-bit architecture
3099 have been found and corrected.
3101 * The license has been changed slightly to conform more with the
3102 original BSD license, including the advertisement clause.
3104 (0.3.1) Changes since version 0.3
3106 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3107 RAM never returned the RAM when the pbuf was deallocated.
3109 * TCP congestion control, window updates and retransmissions did not
3110 work correctly. This has now been fixed.
3112 * Bugfixes in the API.
3114 (0.3) Changes since version 0.2
3116 * New and improved directory structure. All include files are now
3117 kept in a dedicated include/ directory.
3119 * The API now has proper error handling. A new function,
3120 netconn_err(), now returns an error code for the connection in
3123 * Improvements in the memory management subsystem. The system now
3124 keeps a pointer to the lowest free memory block. A new function,
3125 mem_malloc2() tries to allocate memory once, and if it fails tries
3126 to free some memory and retry the allocation.
3128 * Much testing has been done with limited memory
3129 configurations. lwIP now does a better job when overloaded.
3131 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3133 * Many bugfixes in the TCP code:
3135 - Fixed a bug in tcp_close().
3137 - The TCP receive window was incorrectly closed when out of
3138 sequence segments was received. This has been fixed.
3140 - Connections are now timed-out of the FIN-WAIT-2 state.
3142 - The initial congestion window could in some cases be too
3143 large. This has been fixed.
3145 - The retransmission queue could in some cases be screwed up. This
3148 - TCP RST flag now handled correctly.
3150 - Out of sequence data was in some cases never delivered to the
3151 application. This has been fixed.
3153 - Retransmitted segments now contain the correct acknowledgment
3154 number and advertised window.
3156 - TCP retransmission timeout backoffs are not correctly computed
3157 (ala BSD). After a number of retransmissions, TCP now gives up
3160 * TCP connections now are kept on three lists, one for active
3161 connections, one for listening connections, and one for
3162 connections that are in TIME-WAIT. This greatly speeds up the fast
3163 timeout processing for sending delayed ACKs.
3165 * TCP now provides proper feedback to the application when a
3166 connection has been successfully set up.
3168 * More comments have been added to the code. The code has also been
3169 somewhat cleaned up.
3171 (0.2) Initial public release.