5 * [Enter new changes just after this line - do not remove this line]
9 2011-09-21: Simon Goldschmidt
10 * init.c: Converted runtime-sanity-checks into compile-time checks that can
11 be disabled (since runtime checks can often not be seen on embedded targets)
13 2011-09-11: Simon Goldschmidt
14 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
15 to get a clear separation of which functions an application or port may use
18 2011-09-11: Simon Goldschmidt
19 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
20 initial local TCP/UDP ports (so that different port ranges are used after
21 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
23 2011-09-03: Simon Goldschmidt
24 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
26 2011-08-24: Simon Goldschmidt
27 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
29 2011-07-26: Simon Goldschmidt
30 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
31 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
33 2011-07-21: Simon Goldschmidt (patch by hanhui)
34 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
35 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
36 Also added code to allow ip_forward() to forward non-broadcast packets to
37 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
39 2011-07-21: Simon Goldschmidt
40 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
41 ioctl/FIONREAD return the size of the next pending datagram.
43 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
44 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
47 2011-05-25: Simon Goldschmidt
48 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
49 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
50 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
51 code so that the code is more readable.
53 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
54 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
55 Ivan! (this is work in progress: we're just post release anyway :-)
57 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
58 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
64 2011-09-20: Simon Goldschmidt
65 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
67 2011-09-11: Simon Goldschmidt
68 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
71 2011-09-09: Simon Goldschmidt
72 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
75 2011-09-03: Simon Goldschmidt
76 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
77 is aggregated and sent to application
79 2011-09-01: Simon Goldschmidt
80 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
83 2011-09-01: Simon Goldschmidt
84 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
86 2011-08-24: Simon Goldschmidt
87 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
89 2011-08-24: Simon Goldschmidt
90 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
91 accept() on UDP connections
93 2011-08-24: Simon Goldschmidt
94 * sockets.h: fixed bug #34057 socklen_t should be a typedef
96 2011-08-24: Simon Goldschmidt
97 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
99 2011-08-24: Simon Goldschmidt
100 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
102 2011-08-24: Simon Goldschmidt
103 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
105 2011-08-22: Simon Goldschmidt
106 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
107 merely prevents nagle from not transmitting fast after closing.)
109 2011-07-22: Simon Goldschmidt
110 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
111 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
112 lwip_send() sends as much as possible for non-blocking sockets
114 2011-07-22: Simon Goldschmidt
115 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
116 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
117 at regular intervals from main level.
119 2011-07-21: Simon Goldschmidt
120 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
121 sending an ARP request when an ARP entry is used in the last minute before
124 2011-07-04: Simon Goldschmidt
125 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
127 2011-06-26: Simon Goldschmidt
128 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
129 updating its documentation only.
131 2011-06-26: Simon Goldschmidt
132 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
135 2011-06-26: Simon Goldschmidt
136 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
144 2011-03-27: Simon Goldschmidt
145 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
146 calculate it in tcp_zero_window_probe (the only place where it was used).
148 2010-11-21: Simon Goldschmidt
149 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
152 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
153 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
154 IP_MULTICAST_LOOP at socket- and raw-API level.
156 2010-06-16: Simon Goldschmidt
157 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
158 link-layer-addressed UDP traffic to be received while a netif is down (just
159 like DHCP during configuration)
161 2010-05-22: Simon Goldschmidt
162 * many many files: bug #27352: removed packing from ip_addr_t, the packed
163 version is now only used in protocol headers. Added global storage for
164 current src/dest IP address while in input functions.
166 2010-05-16: Simon Goldschmidt
167 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
168 calculation (and use them throughout the stack where applicable)
170 2010-05-16: Simon Goldschmidt
171 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
172 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
174 2010-05-16: Simon Goldschmidt
175 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
176 MEMP pool instead of the heap
178 2010-05-13: Simon Goldschmidt
179 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
180 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
181 packets to more than one pcb.
183 2010-05-02: Simon Goldschmidt
184 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
185 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
187 2010-04-30: Simon Goldschmidt
188 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
189 take a precalculated checksum, added pbuf_fill_chksum() to copy data
190 into a pbuf and at the same time calculating the checksum for that data
192 2010-04-29: Simon Goldschmidt
193 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
194 2-byte-aligned IP addresses and MAC addresses
196 2010-04-28: Patch by Bill Auerbach
197 * ip.c: Inline generating IP checksum to save a function call
199 2010-04-14: Simon Goldschmidt
200 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
201 tcpip_thread processes messages or timeouts to implement a watchdog.
203 2010-03-28: Simon Goldschmidt
204 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
205 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
207 2010-03-27: Simon Goldschmidt
208 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
209 etharp_query to prevent unnecessary function calls (inspired by
212 2010-03-20: Simon Goldschmidt
213 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
214 since the linker cannot do this automatically to save space.
216 2010-03-20: Simon Goldschmidt
217 * opt.h, etharp.c/.h: Added support for static ARP table entries
219 2010-03-14: Simon Goldschmidt
220 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
221 when creating TCP segments, not when (re-)transmitting them.
223 2010-03-07: Simon Goldschmidt
224 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
225 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
226 This should speed up receiving data on sockets as the select code in
227 event_callback is only executed when select is waiting.
229 2010-03-06: Simon Goldschmidt
230 * tcp_out.c: task #7013 (Create option to have all packets delivered to
231 netif->output in one piece): Always copy to try to create single pbufs
234 2010-03-06: Simon Goldschmidt
235 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
236 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
237 for tcp netconns to receive pbufs, not netbufs; use that function
240 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
241 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
242 Work on tcp_enqueue: Don't waste memory when chaining segments,
243 added option TCP_OVERSIZE to prevent creating many small pbufs when
244 calling tcp_write with many small blocks of data. Instead, pbufs are
245 allocated larger than needed and the space is used for later calls to
248 2010-02-21: Simon Goldschmidt
249 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
252 2010-02-21: Simon Goldschmidt
253 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
254 implementation of tcp to make API usage cleare to application programmers
256 2010-02-14: Simon Goldschmidt/Stephane Lesage
257 * ip_addr.h: Improved some defines working on ip addresses, added faster
258 macro to copy addresses that cannot be NULL
260 2010-02-13: Simon Goldschmidt
261 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
262 blocking send operation)
264 2010-02-12: Simon Goldschmidt
265 * sockets.c/.h: Added a minimal version of posix fctl() to have a
266 standardised way to set O_NONBLOCK for nonblocking sockets.
268 2010-02-12: Simon Goldschmidt
269 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
270 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
271 and dhcp work with user-allocated structs instead of callin mem_malloc
273 2010-02-12: Simon Goldschmidt/Jeff Barber
274 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
275 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
277 2010-02-12: Simon Goldschmidt
278 * sys layer: task #10139 (Prefer statically allocated memory): converted
279 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
280 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
281 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
282 to let sys.h use binary semaphores instead of mutexes - as before)
284 2010-02-09: Simon Goldschmidt (Simon Kallweit)
285 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
286 (Restart system timeout handling)
288 2010-02-09: Simon Goldschmidt
289 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
290 netif.c) - loopif does not have to be created by the port any more,
291 just define LWIP_HAVE_LOOPIF to 1.
293 2010-02-08: Simon Goldschmidt
294 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
295 inet_ntoa_r/ipaddr_ntoa_r
297 2010-02-08: Simon Goldschmidt
298 * netif.h: Added netif_s/get_igmp_mac_filter() macros
300 2010-02-05: Simon Goldschmidt
301 * netif.h: Added function-like macros to get/set the hostname on a netif
303 2010-02-04: Simon Goldschmidt
304 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
305 make changing the actual implementation behind the typedef easier.
307 2010-02-01: Simon Goldschmidt
308 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
309 for allocating memory when getaddrinfo() is called.
311 2010-01-31: Simon Goldschmidt
312 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
313 them once instead of parsing for every option. This also removes
314 the need for mem_malloc from dhcp_recv and makes it possible to
315 correctly retrieve the BOOTP file.
317 2010-01-30: simon Goldschmidt
318 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
321 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
322 * api.h, api_msg.c, sockets.c: Added except set support in select
325 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
326 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
327 Add non-blocking support for connect (partly from patch #6860),
328 plus many cleanups in socket & netconn API.
330 2010-01-27: Simon Goldschmidt
331 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
332 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
334 2010-01-26: Simon Goldschmidt
335 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
337 2010-01-14: Simon Goldschmidt
338 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
339 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
341 2010-01-13: Simon Goldschmidt
342 * mem.c: The heap now may be moved to user-defined memory by defining
343 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
344 (patch #6966 and bug #26133)
346 2010-01-10: Simon Goldschmidt (Bill Auerbach)
347 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
350 2010-01-10: Simon Goldschmidt
351 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
352 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
354 2009-12-31: Simon Goldschmidt
355 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
356 added timers.c/.h: Separated timer implementation from semaphore/mbox
357 implementation, moved timer implementation to timers.c/.h, timers are
358 now only called from tcpip_thread or by explicitly checking them.
361 2009-12-27: Simon Goldschmidt
362 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
363 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
368 2011-04-20: Simon Goldschmidt
369 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
371 2011-04-13: Simon Goldschmidt
372 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
373 using ports in the IANA private/dynamic range (49152 through 65535).
375 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
376 * etharp.h/.c: Fixed broken VLAN support.
378 2011-03-27: Simon Goldschmidt
379 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
380 pcbs) by checking if the pcb was bound (local_port != 0).
382 2011-03-27: Simon Goldschmidt
383 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
385 2011-03-27: Simon Goldschmidt
386 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
387 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
389 2011-03-27: Simon Goldschmidt
390 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
391 is present never times out) by starting retransmission timer before checking
394 2011-03-22: Simon Goldschmidt
395 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
396 calling sio_read_abort() if the file descriptor is valid.
398 2011-03-14: Simon Goldschmidt
399 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
400 more than once can render a socket useless) since it mainly involves changing
401 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
403 2011-03-13: Simon Goldschmidt
404 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
405 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
406 use EALRADY instead of -1
408 2011-03-13: Simon Goldschmidt
409 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
410 connection has been aborted by err_tcp (since this is not a normal closing
413 2011-03-13: Simon Goldschmidt
414 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
415 with pcb->state != CLOSED
417 2011-02-17: Simon Goldschmidt
418 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
421 2011-02-17: Simon Goldschmidt
422 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
424 2011-01-24: Simon Goldschmidt
425 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
427 2010-12-02: Simon Goldschmidt
428 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
430 2010-11-23: Simon Goldschmidt
431 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
432 LWIP_SO_RCVBUF and ioctl/FIONREAD.
434 2010-11-23: Simon Goldschmidt
435 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
436 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
438 2010-11-23: Simon Goldschmidt
439 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
440 refusing 'refused_data' again.
442 2010-11-22: Simon Goldschmidt
443 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
444 after a successful nonblocking connection.
446 2010-11-22: Simon Goldschmidt
447 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
448 must be sent link-local
450 2010-11-22: Simon Goldschmidt
451 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
454 2010-11-20: Simon Goldschmidt
455 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
457 2010-11-20: Simon Goldschmidt
458 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
459 resemble other stacks.
461 2010-11-20: Simon Goldschmidt
462 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
463 no-copy TCP writes will never succeed.
465 2010-11-20: Simon Goldschmidt
466 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
467 not match documentation: return ERR_ARG instead of ERR_VAL if not
468 initialized or wrong argument.
470 2010-10-20: Simon Goldschmidt
471 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
473 2010-10-05: Simon Goldschmidt
474 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
475 replugging the network cable after an AutoIP address was assigned.
477 2010-08-10: Simon Goldschmidt
478 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
480 2010-08-03: Simon Goldschmidt
481 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
483 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
484 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
485 endian architectures)
487 2010-07-28: Simon Goldschmidt
488 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
491 2010-07-27: Simon Goldschmidt
492 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
493 harm but never did anything
495 2010-07-21: Simon Goldschmidt
496 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
499 2010-07-16: Kieran Mansley
500 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
502 2010-07-10: Simon Goldschmidt
503 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
505 2010-06-30: Simon Goldschmidt
506 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
509 2010-06-28: Kieran Mansley
510 * timers.c remove unportable printing of C function pointers
512 2010-06-24: Simon Goldschmidt
513 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
514 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
516 2010-06-24: Simon Goldschmidt
517 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
518 implemented shutdown at socket level.
520 2010-06-21: Simon Goldschmidt
521 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
522 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
523 custom pbufs that reference other (original) pbufs. Additionally set
524 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
526 2010-06-15: Simon Goldschmidt
527 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
529 2010-06-14: Simon Goldschmidt
530 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
532 2010-06-12: Simon Goldschmidt
533 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
536 2010-05-17: Simon Goldschmidt
537 * netdb.c: Correctly NULL-terminate h_addr_list
539 2010-05-16: Simon Goldschmidt
540 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
541 "symbol already defined" i.e. when linking to winsock
543 2010-05-05: Simon Goldschmidt
544 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
547 2010-04-21: Simon Goldschmidt
548 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
551 2010-03-28: Luca Ceresoli
552 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
554 2010-03-27: Luca Ceresoli
555 * mib2.c: patch #7130: remove meaningless const qualifiers
557 2010-03-26: Simon Goldschmidt
558 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
560 2010-03-26: Simon Goldschmidt
561 * various files: Fixed compiling with different options disabled (TCP/UDP),
562 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
564 2010-03-25: Simon Goldschmidt
565 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
567 2010-03-25: Simon Goldschmidt
568 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
569 overrunning our rcv_wnd in ooseq case.
571 2010-03-22: Simon Goldschmidt
572 * tcp.c: tcp_listen() did not copy the pcb's prio.
574 2010-03-19: Simon Goldschmidt
575 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
577 2010-03-14: Simon Goldschmidt
578 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
579 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
580 and basing PBUF_LINK_HLEN on it.
582 2010-03-08: Simon Goldschmidt
583 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
584 when assiging routable address): when checking incoming packets and
585 aborting existing connection on address change, filter out link-local
588 2010-03-06: Simon Goldschmidt
589 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
591 2010-03-06: Simon Goldschmidt
592 * ipv4/ip.c: Don't try to forward link-local addresses
594 2010-03-06: Simon Goldschmidt
595 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
598 2010-03-05: Simon Goldschmidt
599 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
602 2010-03-05: Simon Goldschmidt
603 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
604 into multiple calls to tcp_write.
606 2010-02-21: Simon Goldschmidt
607 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
608 the implementation of DNS_USES_STATIC_BUF==1)
610 2010-02-20: Simon Goldschmidt
611 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
612 close() vs. shutdown(). Now the application does not get any more
613 recv callbacks after calling tcp_close(). Added tcp_shutdown().
615 2010-02-19: Simon Goldschmidt
616 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
617 confusion with realloc()
619 2010-02-15: Simon Goldschmidt/Stephane Lesage
620 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
623 2010-02-14: Simon Goldschmidt
624 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
625 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
626 admin-status of a netif are up
628 2010-02-14: Simon Goldschmidt
629 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
630 reception and is not really necessary
632 2010-02-14: Simon Goldschmidt
633 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
634 request was directed as us (RFC 826, Packet Reception), otherwise
635 only update existing entries; internalized some functions
637 2010-02-14: Simon Goldschmidt
638 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
639 disabled on netif used for PPPoE) by adding a new netif flag
640 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
641 device but prevents usage of ARP (so that ethernet_input can be used
644 2010-02-12: Simon Goldschmidt
645 * netif.c: netif_set_link_up/down: only do something if the link state
648 2010-02-12: Simon Goldschmidt/Stephane Lesage
649 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
652 2010-02-12: Simon Goldschmidt
653 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
655 2010-02-09: Simon Goldschmidt
656 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
657 (recv() makes receive window update for data that wasn't received by
660 2010-02-09: Simon Goldschmidt/Stephane Lesage
661 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
662 or any netconn_recv() error)
664 2010-02-09: Simon Goldschmidt
665 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
667 2010-02-09: Simon Goldschmidt
668 * netif.c: For loopback packets, adjust the stats- and snmp-counters
669 for the loopback netif.
671 2010-02-08: Simon Goldschmidt
672 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
673 since they are not used anywhere else.
675 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
676 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
677 (patch from bug #28798)
679 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
680 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
681 another bug when LWIP_RAND() returns zero.
683 2010-02-04: Simon Goldschmidt
684 * nearly every file: Use macros defined in ip_addr.h (some of them new)
685 to work with IP addresses (preparation for bug #27352 - Change ip_addr
686 from struct to typedef (u32_t) - and better code).
688 2010-01-31: Simon Goldschmidt
689 * netif.c: Don't call the link-callback from netif_set_up/down() since
690 this invalidly retriggers DHCP.
692 2010-01-29: Simon Goldschmidt
693 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
694 portability file inet.h and its contents from the stack: moved htonX-
695 functions to def.h (and the new def.c - they are not ipv4 dependent),
696 let inet.h depend on ip_addr.h and not the other way round.
697 This fixes bug #28732.
699 2010-01-28: Kieran Mansley
700 * tcp.c: Ensure ssthresh >= 2*MSS
702 2010-01-27: Simon Goldschmidt
703 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
704 callback can lead to accessing unallocated memory. As a consequence,
705 ERR_ABRT means the application has called tcp_abort()!
707 2010-01-25: Simon Goldschmidt
708 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
709 not implemented in SNMP): write-only or not-accessible are still
710 returned by getnext (though not by get)
712 2010-01-24: Simon Goldschmidt
713 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
714 not use reserved C/C++ keywords
716 2010-01-23: Simon Goldschmidt
717 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
720 2010-01-21: Simon Goldschmidt
721 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
722 if tcp_enqueue fails) both in raw- and netconn-API
724 2010-01-19: Simon Goldschmidt
725 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
727 2010-01-18: Iordan Neshev/Simon Goldschmidt
728 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
729 bugfix backports from 2.4.x.
731 2010-01-18: Simon Goldschmidt
732 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
734 2010-01-17: Simon Goldschmidt
735 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
736 task #10102: "netconn: clean up conn->err threading issues" by adding
737 error return value to struct api_msg_msg
739 2010-01-17: Simon Goldschmidt
740 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
741 to return err_t (bugs #27709 and #28087)
743 2010-01-14: Simon Goldschmidt
744 * ...: Use typedef for function prototypes throughout the stack.
746 2010-01-13: Simon Goldschmidt
747 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
748 window = 0) by correctly draining recvmbox/acceptmbox
750 2010-01-11: Simon Goldschmidt
751 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
752 erroneous callbacks) by copying the code from recent pppd
754 2010-01-10: Simon Goldschmidt
755 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
757 2010-01-10: Simon Goldschmidt
758 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
760 2010-01-08: Simon Goldschmidt
761 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
763 2010-01-08: Simon Goldschmidt
764 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
765 passed to dns_local_addhost() might be volatile
767 2010-01-07: Simon Goldschmidt
768 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
770 2010-01-06: Simon Goldschmidt
771 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
773 2009-12-31: Simon Goldschmidt
774 * many ppp files: Reorganised PPP source code from ucip structure to pppd
775 structure to easily compare our code against the pppd code (around v2.3.1)
777 2009-12-27: Simon Goldschmidt
778 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
786 2009-10-27 Simon Goldschmidt/Stephan Lesage
787 * netifapi.c/.h: Added netifapi_netif_set_addr()
789 2009-10-07 Simon Goldschmidt/Fabian Koch
790 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
791 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
793 2009-08-26 Simon Goldschmidt/Simon Kallweit
794 * slipif.c/.h: bug #26397: SLIP polling support
796 2009-08-25 Simon Goldschmidt
797 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
798 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
800 2009-08-25 Simon Goldschmidt
801 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
803 2009-08-24 Jakob Stoklund Olesen
804 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
805 to netif_set_link_up().
807 2009-08-23 Simon Goldschmidt
808 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
809 to a human-readable string.
813 2009-12-24: Kieran Mansley
814 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
817 2009-12-06: Simon Goldschmidt
818 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
819 be statically allocated (like in ucip)
821 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
822 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
824 2009-12-03: Simon Goldschmidt
825 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
826 could have non-zero length
828 2009-12-02: Simon Goldschmidt
829 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
830 tcp_input_pcb until after calling the pcb's callbacks
832 2009-11-29: Simon Goldschmidt
833 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
834 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
836 2009-11-29: Simon Goldschmidt
837 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
838 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
840 2009-11-26: Simon Goldschmidt
841 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
844 2009-11-26: Simon Goldschmidt
845 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
846 algorithm at PCB level
848 2009-11-22: Simon Goldschmidt
849 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
851 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
852 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
853 reusing time-wait pcb
855 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
856 * sockets.c: Fixed bug #28062: Data received directly after accepting
857 does not wake up select
859 2009-11-11: Simon Goldschmidt
860 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
862 2009-10-30: Simon Goldschmidt
863 * opt.h: Increased default value for TCP_MSS to 536, updated default
864 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
866 2009-10-28: Kieran Mansley
867 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
868 to follow algorithm from TCP/IP Illustrated
870 2009-10-27: Kieran Mansley
871 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
873 2009-10-25: Simon Goldschmidt
874 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
875 pcb->recv is NULL to keep rcv_wnd correct)
877 2009-10-25: Simon Goldschmidt
878 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
880 2009-10-23: Simon Goldschmidt (David Empson)
881 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
883 2009-10-21: Simon Goldschmidt
884 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
885 trailing 1 byte len (SYN/FIN)
887 2009-10-21: Simon Goldschmidt
888 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
890 2009-10-19: Simon Goldschmidt
891 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
892 conditional code to assert where applicable), check pbuf length before
893 testing for valid reply
895 2009-10-19: Simon Goldschmidt
896 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
897 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
899 2009-10-16: Simon Goldschmidt
900 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
901 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
904 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
905 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
907 2009-10-15: Simon Goldschmidt
908 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
911 2009-10-15: Simon Goldschmidt
912 * autoip.c: Fixed bug #27704: autoip starts with wrong address
913 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
914 of network byte order
916 2009-10-11 Simon Goldschmidt (Jörg Kesten)
917 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
918 which are not consecutive when retransmitting unacked segments
920 2009-10-09 Simon Goldschmidt
921 * opt.h: Fixed default values of some stats to only be enabled if used
922 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
924 2009-08-30 Simon Goldschmidt
925 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
926 function" by checking for loopback before calling ip_frag
928 2009-08-25 Simon Goldschmidt
929 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
931 2009-08-23 Simon Goldschmidt
932 * ppp.c: bug #27078: Possible memory leak in pppInit()
934 2009-08-23 Simon Goldschmidt
935 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
938 2009-08-23 Simon Goldschmidt
939 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
940 Fixed wrong parenthesis, added check in init.c
942 2009-08-23 Simon Goldschmidt
943 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
945 2009-08-23 Simon Goldschmidt
946 * many ppp files: bug #27267: Added include to string.h where needed
948 2009-08-23 Simon Goldschmidt
949 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
956 2009-05-10 Simon Goldschmidt
957 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
958 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
959 one pbuf to help MACs that don't support scatter-gather DMA.
961 2009-05-09 Simon Goldschmidt
962 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
963 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
965 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
966 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
967 extended info about the currently received packet.
969 2009-04-27 Simon Goldschmidt
970 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
972 2009-04-25 Simon Goldschmidt
973 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
974 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
976 2009-04-21 Simon Goldschmidt
977 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
978 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
979 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
980 as an external function for lookup.
982 2009-04-15 Simon Goldschmidt
983 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
985 2009-03-31 Kieran Mansley
986 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
987 TCP timestamp options, off by default. Rework tcp_enqueue() to
988 take option flags rather than specified option data
990 2009-02-18 Simon Goldschmidt
991 * cc.h: Added printf formatter for size_t: SZT_F
993 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
994 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
997 2009-02-12 Simon Goldschmidt
998 * init.h: Added LWIP_VERSION to get the current version of the stack
1000 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1001 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1002 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1005 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1006 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1007 is only used by UDPLITE at present, so conditionalise it.
1009 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1010 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1011 "seed" address. This should reduce AUTOIP conflicts if
1012 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1014 2008-10-02 Jonathan Larmour and Rishi Khan
1015 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1018 2008-06-30 Simon Goldschmidt
1019 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1020 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1021 mem_free to run between mem_malloc iterations. Added illegal counter for
1024 2008-06-27 Simon Goldschmidt
1025 * stats.h/.c, some other files: patch #6483: stats module improvement:
1026 Added defines to display each module's statistic individually, added stats
1027 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1029 2008-06-17 Simon Goldschmidt
1030 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1031 (define LWIP_ERR_T in cc.h)
1033 2008-06-17 Simon Goldschmidt
1034 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1037 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1038 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1039 modified version of patch # 6370: Moved loopif code to netif.c so that
1040 loopback traffic is supported on all netifs (all local IPs).
1041 Added option to limit loopback packets for each netifs.
1045 2009-08-12 Kieran Mansley
1046 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1047 out of window or out of order properly
1049 2009-08-12 Kieran Mansley
1050 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1052 2009-07-28 Simon Goldschmidt
1053 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1055 2009-07-27 Kieran Mansley
1056 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1058 2009-07-09 Kieran Mansley
1059 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1060 recv_avail and don't increment counters until message successfully
1063 2009-06-25 Kieran Mansley
1064 * api_msg.c api.h: BUG26722: initialise netconn write variables
1067 2009-06-25 Kieran Mansley
1068 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1070 2009-06-25 Kieran Mansley
1071 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1072 simultaneous close behaviour, and make snd_nxt have the same meaning
1075 2009-05-12 Simon Goldschmidt
1076 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1077 arp_table / uses etharp_query" by adding etharp_gratuitous()
1079 2009-05-12 Simon Goldschmidt
1080 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1081 to the IP header (used by igmp_ip_output_if)
1083 2009-05-06 Simon Goldschmidt
1084 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1085 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1087 2009-05-05 Simon Goldschmidt
1088 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1091 2009-05-04 Simon Goldschmidt
1092 * init.c: snmp was not initialized in lwip_init()
1094 2009-05-04 Frédéric Bernon
1095 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1097 2009-05-03 Simon Goldschmidt
1098 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1099 (and unsent->next == NULL)
1101 2009-05-02 Simon Goldschmidt
1102 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1103 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1105 2009-05-02 Simon Goldschmidt
1106 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1108 2009-05-01 Simon Goldschmidt
1109 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1111 2009-05-01 Simon Goldschmidt
1112 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1114 2009-04-29 Frédéric Bernon
1115 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1116 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1117 of broadcast packets even when this option wasn't set. Port maintainers
1118 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1119 If you want this option also filter broadcast on recv operations, you also
1120 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1122 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1123 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1124 DHCP/AUTOIP cooperation
1126 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1127 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1128 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1129 right place in tcp_output and tcp_rexmit).
1131 2009-04-25 Simon Goldschmidt
1132 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1133 when debugging": memp_sizes contained the wrong sizes (including sanity
1134 regions); memp pools for MEM_USE_POOLS were too small
1136 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1137 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1138 behavior, with with ip address string not ended by a '\0', a space or a
1141 2009-04-19 Simon Goldschmidt
1142 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1143 pcb->err is called, not pcb->connected (with an error code).
1145 2009-04-19 Simon Goldschmidt
1146 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1147 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1149 2009-04-19 Simon Goldschmidt
1150 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1151 in the header pbuf, not the data pbuf)
1153 2009-04-18 Simon Goldschmidt
1154 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1156 2009-04-15 Simon Goldschmidt
1157 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1159 2009-04-15 Simon Goldschmidt
1160 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1162 2009-04-15 Simon Goldschmidt
1163 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1164 ip_hinted_output() (for smaller code mainly)
1166 2009-04-15 Simon Goldschmidt
1167 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1169 2009-04-15 Simon Goldschmidt
1170 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1171 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1172 is big enough in dhcp_start
1174 2009-04-15 Simon Goldschmidt
1175 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1177 2009-04-15 Simon Goldschmidt
1178 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1180 2009-04-15 Simon Goldschmidt
1181 * sockets.c: bug #26121: set_errno can be overridden
1183 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1184 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1187 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1188 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1191 2009-03-31 Kieran Mansley
1192 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1193 updates are calculated and sent (BUG20515)
1195 * tcp_in.c: cope with SYN packets received during established states,
1196 and retransmission of initial SYN.
1198 * tcp_out.c: set push bit correctly when tcp segments are merged
1200 2009-03-27 Kieran Mansley
1201 * tcp_out.c set window correctly on probes (correcting change made
1204 2009-03-26 Kieran Mansley
1205 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1206 connections where no reset required (bug #25622)
1208 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1211 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1212 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1213 too small depending on MEM_ALIGNMENT
1215 2009-02-16 Simon Goldschmidt
1216 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1217 converted size argument of netconn_write to 'size_t'
1219 2009-02-16 Simon Goldschmidt
1220 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1221 by moving accept callback function pointer to TCP_PCB_COMMON
1223 2009-02-12 Simon Goldschmidt
1224 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1227 2009-02-11 Simon Goldschmidt
1228 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1230 2009-02-11 Simon Goldschmidt
1231 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1232 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1234 2009-02-10 Simon Goldschmidt
1235 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1236 Accepts_pending is decrease on a corresponding listen pcb when a connection
1237 in state SYN_RCVD is close.
1239 2009-01-28 Jonathan Larmour
1240 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1243 2008-12-19 Simon Goldschmidt
1244 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1246 2008-12-10 Tamas Somogyi, Frédéric Bernon
1247 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1248 port uses deleted netbuf.
1250 2008-10-18 Simon Goldschmidt
1251 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1254 2008-10-15 Simon Goldschmidt
1255 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1256 by packing the struct ip_reass_helper.
1258 2008-10-03 David Woodhouse, Jonathan Larmour
1259 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1261 2008-10-02 Jonathan Larmour
1262 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1263 padding is included.
1265 2008-09-30 Jonathan Larmour
1266 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1267 assertion check that addrlen isn't NULL.
1269 2008-09-30 Jonathan Larmour
1270 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1272 2008-08-26 Simon Goldschmidt
1273 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1274 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1276 2008-08-14 Simon Goldschmidt
1277 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1278 tcp_close returns != ERR_OK)
1280 2008-07-08 Frédéric Bernon
1281 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1282 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1284 2008-06-24 Jonathan Larmour
1285 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1286 if tcp_seg_copy fails.
1288 2008-06-17 Simon Goldschmidt
1289 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1290 and created defines for swapping bytes and folding u32 to u16.
1292 2008-05-30 Kieran Mansley
1293 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1294 rather than rcv_ann_wnd when deciding if packets are in-window.
1295 Contributed by <arasmussen@consultant.datasys.swri.edu>
1297 2008-05-30 Kieran Mansley
1298 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1299 passing as function pointers when MEM_LIBC_MALLOC is defined.
1301 2008-05-09 Jonathan Larmour
1302 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1303 stop it being treated as a fatal error.
1305 2008-04-15 Simon Goldschmidt
1306 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1309 2008-03-27 Simon Goldschmidt
1310 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1311 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1312 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1313 or heap memory from interrupt context
1315 2008-03-26 Simon Goldschmidt
1316 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1317 host sent a zero mss as TCP option.
1324 2008-03-10 Jonathan Larmour
1325 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1326 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1328 2008-01-22 Frédéric Bernon
1329 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1330 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1332 2008-01-14 Frédéric Bernon
1333 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1334 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1335 tcp_recv callback (see rawapi.txt).
1337 2008-01-14 Frédéric Bernon, Marc Chaland
1338 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1340 2008-01-12 Frédéric Bernon
1341 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1342 netconn::sem per netconn::op_completed like suggested for the task #7490
1343 "Add return value to sys_mbox_post".
1345 2008-01-12 Frédéric Bernon
1346 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1347 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1348 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1350 2008-01-10 Frédéric Bernon
1351 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1352 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1353 "blocking" ("block" parameter = 1).
1355 2008-01-10 Frédéric Bernon
1356 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1357 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1358 "Add return value to sys_mbox_post".
1360 2008-01-05 Frédéric Bernon
1361 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1362 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1363 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1364 indicate the number of pointers query by the mailbox. There is three defines
1365 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1366 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1367 parameter in your implementation, but to ignore it to keep the previous behavior.
1368 The new sys_mbox_trypost function return a value to know if the mailbox is
1369 full or if the message is posted. Take a look to sys_arch.txt for more details.
1370 This new function is used in tcpip_input (so, can be called in an interrupt
1371 context since the function is not blocking), and in recv_udp and recv_raw.
1373 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1374 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1375 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1376 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1377 documentation in the rawapi.txt file.
1379 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1380 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1382 2007-12-31 Frédéric Bernon, Luca Ceresoli
1383 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1384 in autoip". The change in etharp_raw could be removed, since all calls to
1385 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1386 wrong in the future.
1388 2007-12-30 Frédéric Bernon, Tom Evans
1389 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1390 Filtering" reported by Tom Evans.
1392 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1393 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1394 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1395 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1396 keep accepting new connections.
1398 2007-12-13 Frédéric Bernon
1399 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1400 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1402 2007-12-12 Frédéric Bernon
1403 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1404 are the one which have ram usage.
1406 2007-12-05 Frédéric Bernon
1407 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1408 set of variables (=0) or a local one (=1). In this last case, your port should
1409 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1410 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1412 2007-12-03 Simon Goldschmidt
1413 * ip.c: ip_input: check if a packet is for inp first before checking all other
1414 netifs on netif_list (speeds up packet receiving in most cases)
1416 2007-11-30 Simon Goldschmidt
1417 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1418 UDP: move a (connected) pcb selected for input to the front of the list of
1419 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1422 2007-11-28 Simon Goldschmidt
1423 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1425 2007-11-25 Simon Goldschmidt
1426 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1429 2007-11-24 Simon Goldschmidt
1430 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1431 to the new file netdb.c; included lwip_getaddrinfo.
1433 2007-11-21 Simon Goldschmidt
1434 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1435 based on the MTU of the netif used to send. Enabled by default. Disable by
1436 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1438 2007-11-19 Frédéric Bernon
1439 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1440 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1441 copy dns payload to parse the response), return an error if there is no place
1442 for a new query, and fix some minor problems.
1444 2007-11-16 Simon Goldschmidt
1445 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1446 removed files: core/inet.c, core/inet6.c
1447 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1448 inet and chksum part; changed includes in all lwIP files as appropriate
1450 2007-11-16 Simon Goldschmidt
1451 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1452 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1453 (gethostbyname/gethostbyname_r).
1455 2007-11-15 Jim Pettinato, Frédéric Bernon
1456 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1457 requests with RAW api interface. Initialization is done in lwip_init() with
1458 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1459 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1460 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1461 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1462 list with points to improve.
1464 2007-11-06 Simon Goldschmidt
1465 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1466 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1467 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1469 2007-11-06 Simon Goldschmidt
1470 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1471 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1472 implementation from netconn api applications.
1474 2007-11-03 Frédéric Bernon
1475 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1476 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1477 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1478 it. This is a first release which have to be improve for TCP. Note it used the
1479 netconn::recv_avail which need to be more "thread-safe" (note there is already
1480 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1482 2007-11-01 Frédéric Bernon, Marc Chaland
1483 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1484 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1485 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1486 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1487 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1489 2007-10-24 Frédéric Bernon
1490 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1491 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1492 some code (like we have talk in "patch #5919 : Create compile switch to remove
1493 select code"), but it could be done later.
1495 2007-10-08 Simon Goldschmidt
1496 * many files: Changed initialization: many init functions are not needed any
1497 more since we now rely on the compiler initializing global and static
1500 2007-10-06 Simon Goldschmidt
1501 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1502 to enqueue the received pbufs so that multiple packets can be reassembled
1503 simultaneously and no static reassembly buffer is needed.
1505 2007-10-05 Simon Goldschmidt
1506 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1507 all netifs (or ports) can use it.
1509 2007-10-05 Frédéric Bernon
1510 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1511 common function to reduce a little bit the footprint (for all functions using
1512 only the "netif" parameter).
1514 2007-10-03 Frédéric Bernon
1515 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1516 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1517 a little bit the footprint (for all functions using only the "netif" parameter).
1519 2007-09-15 Frédéric Bernon
1520 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1521 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1522 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1523 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1525 2007-09-10 Frédéric Bernon
1526 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1527 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1528 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1529 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1530 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1531 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1532 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1533 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1534 when it's queried (any direct call to "sysuptime" is changed by a call to
1535 snmp_get_sysuptime).
1537 2007-09-09 Frédéric Bernon, Bill Florac
1538 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1539 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1540 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1541 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1542 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1543 the next query message to receive the matching multicast streams).
1545 2007-09-08 Frédéric Bernon
1546 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1547 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1548 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1549 Enable to access to these fields with LWIP_TCP=0.
1551 2007-09-05 Frédéric Bernon
1552 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1553 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1554 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1555 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1556 help to reduce footprint, and to reduce "visibility" on the Internet.
1558 2007-09-05 Frédéric Bernon, Bill Florac
1559 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1560 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1561 parameters have to be provided: a task name, and a task stack size. For this
1562 one, since it's platform dependant, you could define the best one for you in
1563 your lwipopts.h. For port maintainers, you can just add these new parameters
1564 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1567 2007-09-05 Frédéric Bernon
1568 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1569 inside init.c for task #7142 "Sanity check user-configurable values".
1571 2007-09-04 Frédéric Bernon, Bill Florac
1572 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1573 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1574 value). It will avoid potential fragmentation problems, use a counter to know
1575 how many times a group is used on an netif, and free it when all applications
1576 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1577 check if LWIP_IGMP!=0).
1579 2007-09-03 Frédéric Bernon
1580 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1581 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1582 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1583 and/or the "interface" field (for netconn layer), for join/leave operations.
1584 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1585 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1587 2007-08-30 Frédéric Bernon
1588 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1589 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1590 with other API (application based on raw API, or future "socket2" API). Ports
1591 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1593 2007-08-30 Frédéric Bernon, Jonathan Larmour
1594 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1595 user-configurable values".
1597 2007-08-29 Frédéric Bernon
1598 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1599 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1600 spirit than the others modules. Modify some IGMP debug traces.
1602 2007-08-29 Frédéric Bernon
1603 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1604 Add lwip_init function to regroup all modules initializations, and to provide
1605 a place to add code for task #7142 "Sanity check user-configurable values".
1606 Ports maintainers should remove direct initializations calls from their code,
1607 and add init.c in their makefiles. Note that lwip_init() function is called
1608 inside tcpip_init, but can also be used by raw api users since all calls are
1609 disabled when matching options are disabled. Also note that their is new options
1610 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1612 2007-08-26 Marc Boucher
1613 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1614 since they can under certain circumstances be called with an invalid conn
1615 pointer after the connection has been closed (and conn has been freed).
1617 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1618 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1619 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1621 2007-08-22 Frédéric Bernon
1622 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1623 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1625 2007-08-22 Frédéric Bernon
1626 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1627 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1628 name is tcpip_input (we keep the name of 1.2.0 function).
1630 2007-08-17 Jared Grubb
1631 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1632 settings into new memp_std.h and optional user file lwippools.h. This adds
1633 more dynamic mempools, and allows the user to create an arbitrary number of
1634 mempools for mem_malloc.
1636 2007-08-16 Marc Boucher
1637 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1638 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1639 close the connection.
1641 2007-08-16 Marc Boucher
1642 * sockets.c: lwip_accept(): check netconn_peer() error return.
1644 2007-08-16 Marc Boucher
1645 * mem.c, mem.h: Added mem_calloc().
1647 2007-08-16 Marc Boucher
1648 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1649 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1650 and starving other message types.
1651 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1653 2007-08-16 Marc Boucher
1654 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1655 type and flgs (later renamed to flags).
1656 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1657 Improved lwip_recvfrom(). TCP push now propagated.
1659 2007-08-16 Marc Boucher
1660 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1663 2007-08-16 Marc Boucher
1664 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1665 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1666 Added PPPoE support and various PPP improvements.
1668 2007-07-25 Simon Goldschmidt
1669 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1670 making netbuf_copy_partial use this function.
1672 2007-07-25 Simon Goldschmidt
1673 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1674 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1677 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1678 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1679 a link callback in the netif struct, and functions to handle it. Be carefull
1680 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1681 if you want to be sure to be compatible with future changes...
1683 2007-06-30 Frédéric Bernon
1684 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1686 2007-06-21 Simon Goldschmidt
1687 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1688 LWIP_AUTOIP =0 and =1 to remove redundant code.
1690 2007-06-21 Simon Goldschmidt
1691 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1692 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1693 heap. This both prevents memory fragmentation and gives a higher speed
1694 at the cost of more memory consumption. Turned off by default.
1696 2007-06-21 Simon Goldschmidt
1697 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1698 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1699 int to be able to send a bigger buffer than 64K with one time (mainly
1700 used from lwip_send).
1702 2007-06-21 Simon Goldschmidt
1703 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1704 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1706 2007-06-21 Simon Goldschmidt
1707 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1708 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1709 changes on low memory or empty send-buffer.
1711 2007-06-18 Simon Goldschmidt
1712 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1713 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1714 used for ethernet and struct eth_addr already had a defined length of 6).
1716 2007-06-17 Simon Goldschmidt
1717 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1718 to disable UDP checksum generation on transmit.
1720 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1721 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1722 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1723 this macro to check "conn" parameter in api_msg.c functions.
1725 2007-06-11 Simon Goldschmidt
1726 * sockets.c, sockets.h: Added UDP lite support for sockets
1728 2007-06-10 Simon Goldschmidt
1729 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1730 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1733 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1734 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1735 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1736 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1737 (see TODO mark in the source code).
1739 2007-06-09 Simon Goldschmidt
1740 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1741 etharp_output() to match netif->output so etharp_output() can be used
1742 directly as netif->output to save one function call.
1744 2007-06-08 Simon Goldschmidt
1745 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1746 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1747 added initialization of those to ethernetif, slipif and loopif.
1749 2007-05-18 Simon Goldschmidt
1750 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1751 (defaulting to off for now) that can be set to 0 to send fragmented
1752 packets by passing PBUF_REFs down the stack.
1754 2007-05-23 Frédéric Bernon
1755 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1756 connections, such present in patch #5959.
1758 2007-05-23 Frédéric Bernon
1759 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1760 code in only one part...
1762 2007-05-18 Simon Goldschmidt
1763 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1764 elements to overflow. This is achieved by adding some bytes before and after
1765 each pool element (increasing their size, of course), filling them with a
1766 prominent value and checking them on freeing the element.
1767 Set it to 2 to also check every element in every pool each time memp_malloc()
1768 or memp_free() is called (slower but more helpful).
1770 2007-05-10 Simon Goldschmidt
1771 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1772 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1775 2007-05-11 Frédéric Bernon
1776 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1777 Include a function pointer instead of a table index in the message to reduce
1778 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1779 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1781 2007-05-10 Simon Goldschmidt
1782 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1783 \ extern "C" {' in all header files. Now you can write your application using
1784 the lwIP stack in C++ and simply #include the core files. Note I have left
1785 out the netif/ppp/*h header files for now, since I don't know which files are
1786 included by applications and which are for internal use only.
1788 2007-05-09 Simon Goldschmidt
1789 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1790 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1791 situations where some compilers might inline the copy and save a function
1792 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1794 2007-05-08 Simon Goldschmidt
1795 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1796 to be overriden in case the C-library malloc implementation is not protected
1797 against concurrent access.
1799 2007-05-04 Simon Goldschmidt (Atte Kojo)
1800 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1801 multiple packets to the same host.
1803 2007-05-04 Frédéric Bernon, Jonathan Larmour
1804 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1805 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1806 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1807 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1808 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1809 these fields are now renamed "addr" & "port".
1811 2007-04-11 Jonathan Larmour
1812 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1813 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1814 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1815 by the port in sys_arch.h if desired.
1817 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1818 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1819 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1820 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1822 2007-04-05 Frédéric Bernon
1823 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1825 2007-04-04 Simon Goldschmidt
1826 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1827 use this for and architecture-independent form to tell the compiler you intentionally
1828 are not using this variable. Can be overriden in cc.h.
1830 2007-03-28 Frédéric Bernon
1831 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1832 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1833 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1834 It will be used by DHCP to register a client hostname, but can also be use when you call
1837 2007-03-28 Frédéric Bernon
1838 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1839 initialize a network interface's flag with. It tell this interface is an ethernet
1840 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1841 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1843 2007-03-26 Frédéric Bernon, Jonathan Larmour
1844 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1845 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1846 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1847 is done in tcpip_init function.
1849 2007-03-22 Frédéric Bernon
1850 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1851 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1852 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1853 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1854 but never used. Fix msg_in.c with the correct #if test for a stat display.
1856 2007-03-21 Kieran Mansley
1857 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1858 Provides callback on netif up/down state change.
1860 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1861 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1862 ip.c, netif.h, tcpip.c, opt.h:
1863 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1864 filter per all network interfaces. Declare a new function in netif to enable to
1865 control the MAC filter (to reduce lwIP traffic processing).
1867 2007-03-11 Frédéric Bernon
1868 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1869 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1870 unless you know what you're doing (default are RFC1122 compliant). Note
1871 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1873 2007-03-08 Frédéric Bernon
1874 * tcp.h: Keepalive values can be configured at compile time, but don't change
1875 this unless you know what you're doing (default are RFC1122 compliant).
1877 2007-03-08 Frédéric Bernon
1878 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1879 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1880 on UDP sockets/netconn.
1882 2007-03-08 Simon Goldschmidt
1883 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1885 2007-03-06 Frédéric Bernon
1886 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1887 Implement SO_RCVTIMEO on UDP sockets/netconn.
1889 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1890 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1891 on the stack and remove the API msg type from memp
1893 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1894 * sockets.h, sockets.c: Move socket initialization to new
1895 lwip_socket_init() function.
1896 NOTE: this changes the API with ports. Ports will have to be
1897 updated to call lwip_socket_init() now.
1899 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1900 * api_lib.c: Use memcpy in netbuf_copy_partial.
1905 2008-03-17 Frédéric Bernon, Ed Kerekes
1906 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1907 some problems to fill the IP header on some targets, use now the
1908 ip.h macros to do it).
1910 2008-03-13 Frédéric Bernon
1911 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1912 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1913 TCP connection caused a crash. Note that using (lwip_)recvfrom
1914 like this is a bit slow and that using (lwip)getpeername is the
1915 good lwip way to do it (so, using recv is faster on tcp sockets).
1917 2008-03-12 Frédéric Bernon, Jonathan Larmour
1918 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1919 recv_raw() does not consume data", and the ping sample (with
1920 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1921 returned the IP payload, without the IP header).
1923 2008-03-04 Jonathan Larmour
1924 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1925 and/or warnings on some systems where mem_size_t and size_t differ.
1926 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1928 2008-03-04 Kieran Mansley (contributions by others)
1929 * Numerous small compiler error/warning fixes from contributions to
1930 mailing list after 1.3.0 release candidate made.
1932 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1933 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1935 2008-01-15 Kieran Mansley
1936 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1937 prevented from sending by a small send window, not just a zero
1940 2008-01-09 Jonathan Larmour
1941 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1942 conflict with Linux system headers.
1944 2008-01-06 Jonathan Larmour
1945 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1946 address entirely on receiving a DHCPNAK, and restarting discovery.
1948 2007-12-21 Simon Goldschmidt
1949 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1950 is not protected" by using new macros for interlocked access to modify/test
1951 netconn->recv_avail.
1953 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1954 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1956 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1957 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1958 of silly window avoidance and prevent lwIP from shrinking the window)
1960 2007-12-04 Simon Goldschmidt
1961 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1962 data packet was lost): add assert that all segment lists are empty in
1963 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1964 state from LAST_ACK in tcp_process
1966 2007-12-02 Simon Goldschmidt
1967 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1968 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1969 has to be set to 0 in lwipopts.h
1971 2007-12-02 Simon Goldschmidt
1972 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1973 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1974 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1975 This is a fix for thread-safety and allocates all items needed for a netconn
1976 when the netconn is created.
1978 2007-11-30 Simon Goldschmidt
1979 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1980 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1981 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1982 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1984 2007-11-27 Simon Goldschmidt
1985 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1986 letting ip_route only use netifs that are up.
1988 2007-11-27 Simon Goldschmidt
1989 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1990 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1991 sockets block most operations once they have seen a fatal error.
1993 2007-11-27 Simon Goldschmidt
1994 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1995 netif to send as an argument (to be able to send on netifs that are down).
1997 2007-11-26 Simon Goldschmidt
1998 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2001 2007-11-21 Simon Goldschmidt
2002 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2003 Fixed the nagle algorithm; nagle now also works for all raw API applications
2004 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2006 2007-11-12 Frédéric Bernon
2007 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2008 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2009 context in do_getaddr.
2011 2007-11-10 Simon Goldschmidt
2012 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2013 happen any time). Now the packet simply isn't enqueued when out of memory.
2015 2007-11-01 Simon Goldschmidt
2016 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2017 TCP_MSS if that is smaller) as long as no MSS option is received from the
2020 2007-11-01 Simon Goldschmidt
2021 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2022 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2023 sending our configured TCP_MSS instead of the one received).
2025 2007-11-01 Simon Goldschmidt
2026 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2027 calculated based on the configured TCP_MSS, not on the MSS option received
2030 2007-10-09 Simon Goldschmidt
2031 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2032 short and also was generated wrong if checksum coverage != tot_len;
2033 receive: checksum was calculated wrong if checksum coverage != tot_len
2035 2007-10-08 Simon Goldschmidt
2036 * mem.c: lfree was not updated in mem_realloc!
2038 2007-10-07 Frédéric Bernon
2039 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2040 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2041 this change cause an API breakage for netconn_addr, since a parameter
2042 type change. Any compiler should cause an error without any changes in
2043 yours netconn_peer calls (so, it can't be a "silent change"). It also
2044 reduce a little bit the footprint for socket layer (lwip_getpeername &
2045 lwip_getsockname use now a common lwip_getaddrname function since
2046 netconn_peer & netconn_addr have the same parameters).
2048 2007-09-20 Simon Goldschmidt
2049 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2050 by checking tcp_tw_pcbs also
2052 2007-09-19 Simon Goldschmidt
2053 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2055 2007-09-15 Mike Kleshov
2056 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2058 2007-09-06 Frédéric Bernon
2059 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2060 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2061 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2062 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2064 2007-08-30 Frédéric Bernon
2065 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2066 and fix some coding style.
2068 2007-08-28 Frédéric Bernon
2069 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2070 kind of packets. These packets are considered like Ethernet packets (payload
2071 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2072 are considered like IP packets (payload pointing to iphdr).
2074 2007-08-27 Frédéric Bernon
2075 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2076 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2077 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2079 2007-08-24 Kieran Mansley
2080 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2081 compiler (Paradigm C++)
2083 2007-08-09 Frédéric Bernon, Bill Florac
2084 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2085 Introduce IGMP_STATS to centralize statistics management.
2087 2007-08-09 Frédéric Bernon, Bill Florac
2088 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2089 packet on a udp pcb binded on an netif's IP address, and not on "any".
2091 2007-08-09 Frédéric Bernon, Bill Florac
2092 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2093 This is mainly on using lookup/lookfor, and some coding styles...
2095 2007-07-26 Frédéric Bernon (and "thedoctor")
2096 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2098 2007-07-25 Simon Goldschmidt
2099 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2100 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2101 (tcp_output is called again later from tcp timers).
2103 2007-07-25 Simon Goldschmidt
2104 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2105 copy_from_pbuf, which illegally modified the given pbuf.
2107 2007-07-25 Simon Goldschmidt
2108 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2109 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2111 2007-07-24 Simon Goldschmidt
2112 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2113 correct state (must be CLOSED).
2115 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2116 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2117 allocation. It now returns NULL.
2119 2007-07-13 Frédéric Bernon
2120 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2123 2007-07-13 Frédéric Bernon
2124 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2125 because current code doesn't follow rawapi.txt documentation.
2127 2007-07-13 Kieran Mansley
2128 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2129 out of sequence processing of received packets
2131 2007-07-03 Simon Goldschmidt
2132 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2133 assumption is made that this pbuf is in one piece (i.e. not chained). These
2134 assumptions clash with the possibility of converting to fully pool-based
2135 pbuf implementations, where PBUF_RAM pbufs might be chained.
2137 2007-07-03 Simon Goldschmidt
2138 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2139 when closing tcp netconns: removed conn->sem, less context switches when
2140 closing, both netconn_close and netconn_delete should safely close tcp
2143 2007-07-02 Simon Goldschmidt
2144 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2145 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2146 to cache ARP table indices with each pcb instead of single-entry cache for
2149 2007-07-02 Simon Goldschmidt
2150 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2151 warnings when assigning to smaller types.
2153 2007-06-28 Simon Goldschmidt
2154 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2156 2007-06-28 Simon Goldschmidt
2157 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2158 a segment contained chained pbufs)
2160 2007-06-28 Frédéric Bernon
2161 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2162 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2163 possible to define this macro in your own lwipopts.h to always use C library's
2164 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2166 2007-06-28 Frédéric Bernon
2167 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2168 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2169 in api_lib/api_msg (use pointers and not type with table, etc...)
2171 2007-06-26 Simon Goldschmidt
2172 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2174 2007-06-25 Simon Goldschmidt
2175 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2176 for udp packets with no matching pcb.
2178 2007-06-25 Simon Goldschmidt
2179 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2180 could get udp input packets if the remote side matched.
2182 2007-06-13 Simon Goldschmidt
2183 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2184 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2186 2007-06-13 Simon Goldschmidt
2187 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2188 -> netconn_new_..() does not allocate a new connection for unsupported
2191 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2192 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2193 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2195 2007-06-13 Frédéric Bernon, Matthias Weisser
2196 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2197 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2198 some macro names collision with some OS macros.
2200 2007-06-11 Simon Goldschmidt
2201 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2202 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2203 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2206 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2207 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2208 where TCP flags wasn't initialized in tcp_keepalive.
2210 2007-06-03 Simon Goldschmidt
2211 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2212 registered, p->payload was modified without modifying p->len if sending
2213 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2215 2007-06-03 Simon Goldschmidt
2216 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2217 re-used the input pbuf even if that didn't have enough space to include the
2218 link headers. Now the space is tested and a new pbuf is allocated for the
2219 echo response packet if the echo request pbuf isn't big enough.
2221 2007-06-01 Simon Goldschmidt
2222 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2224 2007-05-23 Frédéric Bernon
2225 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2226 allocated by do_listen if success) and netconn_accept errors handling. In
2227 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2228 by ASSERT, except for netconn_delete.
2230 2007-05-23 Frédéric Bernon
2231 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2232 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2233 directly close the recvmbox).
2235 2007-05-22 Simon Goldschmidt
2236 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2237 bound but unconnected (and non-listening) tcp_pcbs.
2239 2007-05-22 Frédéric Bernon
2240 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2241 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2242 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2243 like "sys_timeout" in their application threads.
2245 2007-05-22 Frédéric Bernon
2246 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2247 which parameters are used by which do_xxx function, and to avoid "misusing"
2248 parameters (patch #5938).
2250 2007-05-22 Simon Goldschmidt
2251 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2252 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2253 is only 8 bits wide. This affects the api, as there, the protocol was
2256 2007-05-18 Simon Goldschmidt
2257 * memp.c: addition to patch #5913: smaller pointer was returned but
2258 memp_memory was the same size -> did not save memory.
2260 2007-05-16 Simon Goldschmidt
2261 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2264 2007-05-16 Simon Goldschmidt
2265 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2266 as the one of the netif used for sending to prevent sending from old
2267 addresses after a netif address gets changed (partly fixes bug #3168).
2269 2007-05-16 Frédéric Bernon
2270 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2271 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2272 tcpip_init) because we have to be sure that network interfaces are already
2273 added (mac filter is updated only in igmp_init for the moment).
2275 2007-05-16 Simon Goldschmidt
2276 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2277 into sys_arch_sem_wait calls to prevent timers from running while waiting
2278 for the heap. This fixes bug #19167.
2280 2007-05-13 Simon Goldschmidt
2281 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2282 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2285 2007-05-07 Simon Goldschmidt
2286 * mem.c: Another attempt to fix bug #17922.
2288 2007-05-04 Simon Goldschmidt
2289 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2290 implementation so that it can be reused (don't allocate the target
2291 pbuf inside pbuf_copy()).
2293 2007-05-04 Simon Goldschmidt
2294 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2295 to save a little RAM (next pointer of memp is not used while not in pool).
2298 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2301 2007-04-23 Simon Goldschmidt
2302 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2303 in NULL reference for incoming TCP packets". Loopif has to be configured
2304 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2305 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2306 putting packets on a list that is fed to the stack by calling loopif_poll()
2307 (single-thread / NO_SYS / polling environment where e.g.
2308 netif->input() = ip_input).
2310 2007-04-17 Jonathan Larmour
2311 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2312 the difference between two u16_t's.
2313 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2314 MEMP_NUM_NETCONN in sockets.c right now.
2316 2007-04-12 Jonathan Larmour
2317 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2319 2007-04-12 Kieran Mansley
2320 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2321 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2323 2007-04-11 Simon Goldschmidt
2324 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2325 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2326 pbuf.c: removed functions no needed any more (by etharp).
2328 2007-04-11 Kieran Mansley
2329 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2330 "Constant is long" warnings with 16bit compilers. Contributed by
2331 avatar@mmlab.cse.yzu.edu.tw
2333 2007-04-05 Frédéric Bernon, Jonathan Larmour
2334 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2335 the mailbox is active". Now, the post is only done during a connect, and do_send,
2336 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2338 2007-04-03 Frédéric Bernon
2339 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2340 packets. See patch #5834.
2342 2007-03-30 Frédéric Bernon
2343 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2344 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2346 2007-03-30 Frédéric Bernon
2347 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2348 others environment defines (these were too "generic").
2350 2007-03-28 Frédéric Bernon
2351 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2352 result and can cause a crash. lwip_send now check netbuf_ref result.
2354 2007-03-28 Simon Goldschmidt
2355 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2356 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2357 defined. This is the way it should have been already (looking at
2360 2007-03-28 Kieran Mansley
2361 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2362 IP and TCP headers *and* physical link headers
2364 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2365 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2366 to send some garbage. It is not a definitive solution, but the patch does solve
2367 the problem for most cases.
2369 2007-03-22 Frédéric Bernon
2370 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2372 2007-03-22 Frédéric Bernon
2373 * api_lib.c: somes resources couldn't be freed if there was errors during
2374 netconn_new_with_proto_and_callback.
2376 2007-03-22 Frédéric Bernon
2377 * ethernetif.c: update netif->input calls to check return value. In older ports,
2378 it's a good idea to upgrade them, even if before, there could be another problem
2379 (access to an uninitialized mailbox).
2381 2007-03-21 Simon Goldschmidt
2382 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2383 by casting to unsigned).
2385 2007-03-21 Frédéric Bernon
2386 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2387 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2388 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2389 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2390 faster and more reliable communication between api_lib and tcpip.
2392 2007-03-21 Frédéric Bernon
2393 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2395 2007-03-21 Frédéric Bernon
2396 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2398 2007-03-21 Kieran Mansley
2399 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2402 2007-03-21 Kieran Mansley
2403 * Fix all uses of pbuf_header to check the return value. In some
2404 cases just assert if it fails as I'm not sure how to fix them, but
2405 this is no worse than before when they would carry on regardless
2408 2007-03-21 Kieran Mansley
2409 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2410 comment out missing header include in icmp.c
2412 2007-03-20 Frédéric Bernon
2413 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2414 synchronized with memp.h.
2416 2007-03-20 Frédéric Bernon
2417 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2418 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2419 network interfaces. Also fix a compiler warning.
2421 2007-03-20 Kieran Mansley
2422 * udp.c: Only try and use pbuf_header() to make space for headers if
2423 not a ROM or REF pbuf.
2425 2007-03-19 Frédéric Bernon
2426 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2429 2007-03-19 Frédéric Bernon
2430 * Remove unimplemented "memp_realloc" function from memp.h.
2432 2007-03-11 Simon Goldschmidt
2433 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2436 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2437 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2438 (missing `const' qualifier in socket functions), to get more compatible to
2439 standard POSIX sockets.
2441 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2442 * sockets.c: Add asserts inside bind, connect and sendto to check input
2443 parameters. Remove excessive set_errno() calls after get_socket(), because
2444 errno is set inside of get_socket(). Move last sock_set_errno() inside
2447 2007-03-09 Simon Goldschmidt
2448 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2449 was allocated too small.
2451 2007-03-06 Simon Goldschmidt
2452 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2453 the stack from concurrent access.
2455 2007-03-06 Frédéric Bernon, Dmitry Potapov
2456 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2457 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2459 2007-03-06 Simon Goldschmidt
2460 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2461 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2463 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2464 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2465 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2466 Allow to do ARP processing for incoming packets inside tcpip_thread
2467 (protecting ARP layer against concurrent access). You can also disable
2468 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2469 Older ports have to use tcpip_ethinput.
2471 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2472 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2473 from pointer target type"
2475 2007-03-05 Frédéric Bernon
2476 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2477 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2479 2007-03-04 Frédéric Bernon
2480 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2483 2007-03-04 Frédéric Bernon
2484 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2486 The api_msg struct stay on the stack (not moved to netconn struct).
2488 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2489 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2490 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2491 Also fixed cast warning in pbuf_alloc()
2493 2007-03-04 Simon Goldschmidt
2494 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2495 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2497 2007-03-03 Frédéric Bernon
2498 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2499 It is static, and never used in udp.c except udp_init().
2501 2007-03-02 Simon Goldschmidt
2502 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2503 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2504 initialized before tcpip_thread is running (e.g. before OS is started)
2506 2007-03-02 Frédéric Bernon
2507 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2510 2007-02-28 Kieran Mansley
2511 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2512 outside the region of the pbuf by pbuf_header()
2514 2007-02-28 Kieran Mansley
2515 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2516 when supplied timeout is also non-zero
2520 2006-12-05 Leon Woestenberg
2521 * CHANGELOG: Mention STABLE-1.2.0 release.
2525 2006-12-01 Christiaan Simons
2526 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2527 Note this is a workaround. Currently I have no other options left.
2529 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2530 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2531 to include/lwip/opt.h.
2532 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2533 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2534 * opt.h: Add above new options.
2536 2006-08-18 Christiaan Simons
2537 * tcp_{in,out}.c: added SNMP counters.
2538 * ipv4/ip.c: added SNMP counters.
2539 * ipv4/ip_frag.c: added SNMP counters.
2541 2006-08-08 Christiaan Simons
2542 * etharp.{c,h}: added etharp_find_addr() to read
2543 (stable) ethernet/IP address pair from ARP table
2545 2006-07-14 Christiaan Simons
2546 * mib_structs.c: added
2547 * include/lwip/snmp_structs.h: added
2548 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2550 2006-07-06 Christiaan Simons
2551 * snmp/asn1_{enc,dec}.c added
2553 * snmp/msg_{in,out}.c added
2554 * include/lwip/snmp_asn1.h added
2555 * include/lwip/snmp_msg.h added
2556 * doc/snmp_agent.txt added
2558 2006-03-29 Christiaan Simons
2559 * inet.c, inet.h: Added platform byteswap support.
2560 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2561 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2565 2006-11-30 Christiaan Simons
2566 * dhcp.c: Fixed false triggers of request_timeout.
2568 2006-11-28 Christiaan Simons
2569 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2571 2006-10-11 Christiaan Simons
2572 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2573 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2574 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2575 identifier from 170 to 136 (bug #17574).
2577 2006-10-10 Christiaan Simons
2578 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2580 2006-08-17 Christiaan Simons
2581 * udp.c: Fixed bug #17200, added check for broadcast
2582 destinations for PCBs bound to a unicast address.
2584 2006-08-07 Christiaan Simons
2585 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2587 2006-06-27 Christiaan Simons
2588 * api_msg.c: Applied patch for cold case (bug #11135).
2589 In accept_function() ensure newconn->callback is always initialized.
2591 2006-06-15 Christiaan Simons
2592 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2593 facilitate printing of mem_size_t and u16_t statistics.
2595 2006-06-14 Christiaan Simons
2596 * api_msg.c: Applied patch #5146 to handle allocation failures
2597 in accept() by Kevin Lawson.
2599 2006-05-26 Christiaan Simons
2600 * api_lib.c: Removed conn->sem creation and destruction
2601 from netconn_write() and added sys_sem_new to netconn_new_*.
2605 2006-03-03 Christiaan Simons
2606 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2607 access and added pbuf_alloc() return value checks.
2609 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2610 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2611 now handled by the checksum routine properly.
2613 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2614 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2615 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2617 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2618 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2619 submitted by Mitrani Hiroshi.
2621 2005-12-15 Christiaan Simons
2622 * inet.c: Disabled the added summing routine to preserve code space.
2624 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2625 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2626 Added Curt McDowell's optimized checksumming routine for future
2627 inclusion. Need to create test case for unaliged, aligned, odd,
2628 even length combination of cases on various endianess machines.
2630 2005-12-09 Christiaan Simons
2631 * inet.c: Rewrote standard checksum routine in proper portable C.
2633 2005-11-25 Christiaan Simons
2634 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2635 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2636 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2638 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2639 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2640 routine by Peter Jolasson.
2641 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2643 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2644 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2645 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2647 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2648 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2650 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2651 * udp.c: UDP pcb->recv() was called even when it was NULL.
2655 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2656 * etharp.*: Disabled multiple packets on the ARP queue.
2657 This clashes with TCP queueing.
2659 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2660 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2661 Halved the ARP period, doubled the period counts.
2662 ETHARP_MAX_PENDING now should be at least 2. This prevents
2663 the counter from reaching 0 right away (which would allow
2664 too little time for ARP responses to be received).
2666 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2667 * dhcp.c: Decline messages were not multicast but unicast.
2668 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2669 Do not try hard to insert arbitrary packet's source address,
2670 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2671 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2672 querying an address will see it appear in the cache (DHCP could
2673 suffer from this when a server invalidly gave an in-use address.)
2674 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2675 comparing network addresses (identifiers), not the network masks
2677 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2678 IP address actually belongs to the network of the given interface.
2680 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2681 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2685 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2686 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2687 even if one is already pending, if the rcv_wnd is above a threshold
2688 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2689 delayed ACK in order to open the window if the stack is only receiving data.
2691 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2692 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2694 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2695 * etharp.c: Make sure the first pbuf queued on an ARP entry
2696 is properly ref counted.
2698 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2699 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2700 warnings about comparison.
2701 * pbuf.c: Stopped compiler complaining of empty if statement
2702 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2703 * tcp.c: Stopped compiler complaining of empty if statement
2704 when LWIP_DEBUGF() empty.
2705 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2706 * inet.c: Added a couple of casts to quiet the compiler.
2707 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2709 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2710 * inet.c: Made data types consistent in inet_ntoa().
2711 Added casts for return values of checksum routines, to pacify compiler.
2712 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2713 Small corrections to some debugging statements, to pacify compiler.
2715 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2716 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2717 * ethernetif.c Updated low_level_output() to match prototype for
2718 netif->linkoutput and changed low_level_input() similarly for consistency.
2719 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2720 of raw_recv() in raw.h and so avoid compiler error.
2721 * sockets.c: Added trivial (int) cast to keep compiler happier.
2722 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2728 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2729 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2730 your cc.h file defines this either 1 or 0. If non-defined,
2732 * .c: Added <string.h> and <errno.h> includes where used.
2733 * etharp.c: Made some array indices unsigned.
2735 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2736 * netif.*: Added netif_set_up()/down().
2737 * dhcp.c: Changes to restart program flow.
2739 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2740 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2741 single-pass lookup for different candidates. Should exploit locality.
2743 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2744 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2745 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2746 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2747 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2751 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2752 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2753 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2754 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2755 is to prefix the 14-bit Ethernet headers with two padding bytes.
2757 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2758 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2759 * etharp.c: Fixed the case where the packet that initiates the ARP request
2760 is not queued, and gets lost. Fixed the case where the packets destination
2761 address is already known; we now always queue the packet and perform an ARP
2768 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2769 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2770 * Fixed two possible NULL references in rare cases.
2776 * Fixed DHCP which did not include the IP address in DECLINE messages.
2780 * etharp.c has been hauled over a bit.
2786 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2787 * Packets sent from ARP queue had invalid source hardware address.
2791 * Pass-by ARP requests do now update the cache.
2795 * No longer dependent on ctype.h.
2796 * New socket options.
2797 * Raw IP pcb support.
2803 * Some debug formatters and casts fixed.
2804 * Numereous fixes in PPP.
2808 * DEBUGF now is LWIP_DEBUGF
2809 * pbuf_dechain() has been re-enabled.
2810 * Mentioned the changed use of CVS branches in README.
2816 * Fixed pool pbuf memory leak in pbuf_alloc().
2817 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2818 Reported by Savin Zlobec.
2820 * PBUF_POOL chains had their tot_len field not set for non-first
2821 pbufs. Fixed in pbuf_alloc().
2825 * Added PPP stack contributed by Marc Boucher
2829 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2831 * ARP queueuing now queues the latest packet instead of the first.
2832 This is the RFC recommended behaviour, but can be overridden in
2839 * TCP has been fixed to deal with the new use of the pbuf->ref
2842 * DHCP dhcp_inform() crash bug fixed.
2846 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2847 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2848 Implemented by David Haas.
2854 * The packet buffer implementation has been enhanced to support
2855 zero-copy and copy-on-demand for packet buffers which have their
2856 payloads in application-managed memory.
2857 Implemented by David Haas.
2859 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2860 if an outgoing packet can be directly sent on the link, or perform
2861 a copy-on-demand when necessary.
2863 The application can safely assume the packet is sent, and the RAM
2864 is available to the application directly after calling udp_send()
2865 or similar function.
2869 * ARP_QUEUEING should now correctly work for all cases, including
2871 Implemented by Leon Woestenberg.
2875 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2876 to a '0.0.0.0' IP address.
2878 * The packet buffer implementation is changed. The pbuf->ref counter
2879 meaning has changed, and several pbuf functions have been
2880 adapted accordingly.
2882 * netif drivers have to be changed to set the hardware address length field
2883 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2884 See the contrib/ports/c16x cs8900 driver as a driver example.
2886 * netif's have a dhcp field that must be initialized to NULL by the driver.
2887 See the contrib/ports/c16x cs8900 driver as a driver example.
2889 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2890 logged in CVS but have not been explained here.
2892 (0.5.3) Changes since version 0.5.2
2896 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2897 threads because it wasn't protected by semaphores.
2901 * struct ip_addr now packed.
2903 * The name of the time variable in arp.c has been changed to ctime
2904 to avoid conflicts with the time() function.
2906 (0.5.2) Changes since version 0.5.1
2910 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2914 * A bug in tcp_parseopt() could cause the stack to hang because of a
2915 malformed TCP option.
2917 * The address of new connections in the accept() function in the BSD
2918 socket library was not handled correctly.
2920 * pbuf_dechain() did not update the ->tot_len field of the tail.
2922 * Aborted TCP connections were not handled correctly in all
2927 * All protocol header structs are now packed.
2929 * The ->len field in the tcp_seg structure now counts the actual
2930 amount of data, and does not add one for SYN and FIN segments.
2932 (0.5.1) Changes since version 0.5.0
2936 * Possible to run as a user process under Linux.
2938 * Preliminary support for cross platform packed structs.
2940 * ARP timer now implemented.
2944 * TCP output queue length was badly initialized when opening
2947 * TCP delayed ACKs were not sent correctly.
2949 * Explicit initialization of BSS segment variables.
2951 * read() in BSD socket library could drop data.
2953 * Problems with memory alignment.
2955 * Situations when all TCP buffers were used could lead to
2958 * TCP MSS option wasn't parsed correctly.
2960 * Problems with UDP checksum calculation.
2962 * IP multicast address tests had endianess problems.
2964 * ARP requests had wrong destination hardware address.
2968 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2970 * A ->linkoutput() member was added to struct netif.
2972 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2974 * ntoh* macros are now null definitions for big endian CPUs.
2976 (0.5.0) Changes since version 0.4.2
2980 * Redesigned operating system emulation layer to make porting easier.
2982 * Better control over TCP output buffers.
2984 * Documenation added.
2988 * Locking issues in buffer management.
2990 * Bugfixes in the sequential API.
2992 * IP forwarding could cause memory leakage. This has been fixed.
2996 * Directory structure somewhat changed; the core/ tree has been
2999 (0.4.2) Changes since version 0.4.1
3003 * Experimental ARP implementation added.
3005 * Skeleton Ethernet driver added.
3007 * Experimental BSD socket API library added.
3011 * In very intense situations, memory leakage could occur. This has
3016 * Variables named "data" and "code" have been renamed in order to
3017 avoid name conflicts in certain compilers.
3019 * Variable++ have in appliciable cases been translated to ++variable
3020 since some compilers generate better code in the latter case.
3022 (0.4.1) Changes since version 0.4
3026 * TCP: Connection attempts time out earlier than data
3027 transmissions. Nagle algorithm implemented. Push flag set on the
3028 last segment in a burst.
3030 * UDP: experimental support for UDP-Lite extensions.
3034 * TCP: out of order segments were in some cases handled incorrectly,
3035 and this has now been fixed. Delayed acknowledgements was broken
3036 in 0.4, has now been fixed. Binding to an address that is in use
3037 now results in an error. Reset connections sometimes hung an
3038 application; this has been fixed.
3040 * Checksum calculation sometimes failed for chained pbufs with odd
3041 lengths. This has been fixed.
3043 * API: a lot of bug fixes in the API. The UDP API has been improved
3044 and tested. Error reporting and handling has been
3045 improved. Logical flaws and race conditions for incoming TCP
3046 connections has been found and removed.
3048 * Memory manager: alignment issues. Reallocating memory sometimes
3049 failed, this has been fixed.
3051 * Generic library: bcopy was flawed and has been fixed.
3055 * API: all datatypes has been changed from generic ones such as
3056 ints, to specified ones such as u16_t. Functions that return
3057 errors now have the correct type (err_t).
3059 * General: A lot of code cleaned up and debugging code removed. Many
3060 portability issues have been fixed.
3062 * The license was changed; the advertising clause was removed.
3066 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3067 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3070 (0.4) Changes since version 0.3.1
3072 * Memory management has been radically changed; instead of
3073 allocating memory from a shared heap, memory for objects that are
3074 rapidly allocated and deallocated is now kept in pools. Allocation
3075 and deallocation from those memory pools is very fast. The shared
3076 heap is still present but is used less frequently.
3078 * The memory, memory pool, and packet buffer subsystems now support
3079 4-, 2-, or 1-byte alignment.
3081 * "Out of memory" situations are handled in a more robust way.
3083 * Stack usage has been reduced.
3085 * Easier configuration of lwIP parameters such as memory usage,
3086 TTLs, statistics gathering, etc. All configuration parameters are
3087 now kept in a single header file "lwipopts.h".
3089 * The directory structure has been changed slightly so that all
3090 architecture specific files are kept under the src/arch
3093 * Error propagation has been improved, both in the protocol modules
3096 * The code for the RTXC architecture has been implemented, tested
3099 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3100 the Internet checksum modules.
3102 * Bugs related to porting between a 32-bit and a 16-bit architecture
3103 have been found and corrected.
3105 * The license has been changed slightly to conform more with the
3106 original BSD license, including the advertisement clause.
3108 (0.3.1) Changes since version 0.3
3110 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3111 RAM never returned the RAM when the pbuf was deallocated.
3113 * TCP congestion control, window updates and retransmissions did not
3114 work correctly. This has now been fixed.
3116 * Bugfixes in the API.
3118 (0.3) Changes since version 0.2
3120 * New and improved directory structure. All include files are now
3121 kept in a dedicated include/ directory.
3123 * The API now has proper error handling. A new function,
3124 netconn_err(), now returns an error code for the connection in
3127 * Improvements in the memory management subsystem. The system now
3128 keeps a pointer to the lowest free memory block. A new function,
3129 mem_malloc2() tries to allocate memory once, and if it fails tries
3130 to free some memory and retry the allocation.
3132 * Much testing has been done with limited memory
3133 configurations. lwIP now does a better job when overloaded.
3135 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3137 * Many bugfixes in the TCP code:
3139 - Fixed a bug in tcp_close().
3141 - The TCP receive window was incorrectly closed when out of
3142 sequence segments was received. This has been fixed.
3144 - Connections are now timed-out of the FIN-WAIT-2 state.
3146 - The initial congestion window could in some cases be too
3147 large. This has been fixed.
3149 - The retransmission queue could in some cases be screwed up. This
3152 - TCP RST flag now handled correctly.
3154 - Out of sequence data was in some cases never delivered to the
3155 application. This has been fixed.
3157 - Retransmitted segments now contain the correct acknowledgment
3158 number and advertised window.
3160 - TCP retransmission timeout backoffs are not correctly computed
3161 (ala BSD). After a number of retransmissions, TCP now gives up
3164 * TCP connections now are kept on three lists, one for active
3165 connections, one for listening connections, and one for
3166 connections that are in TIME-WAIT. This greatly speeds up the fast
3167 timeout processing for sending delayed ACKs.
3169 * TCP now provides proper feedback to the application when a
3170 connection has been successfully set up.
3172 * More comments have been added to the code. The code has also been
3173 somewhat cleaned up.
3175 (0.2) Initial public release.