5 * [Enter new changes just after this line - do not remove this line]
9 2011-08-26: Simon Goldschmidt
10 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
11 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
13 2011-07-21: Simon Goldschmidt (patch by hanhui)
14 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
15 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
16 Also added code to allow ip_forward() to forward non-broadcast packets to
17 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
19 2011-07-21: Simon Goldschmidt
20 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
21 ioctl/FIONREAD return the size of the next pending datagram.
23 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
24 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
27 2011-05-25: Simon Goldschmidt
28 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
29 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
30 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
31 code so that the code is more readable.
33 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
34 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
35 Ivan! (this is work in progress: we're just post release anyway :-)
37 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
38 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
44 2011-07-22: Simon Goldschmidt
45 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
46 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
47 lwip_send() sends as much as possible for non-blocking sockets
49 2011-07-22: Simon Goldschmidt
50 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
51 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
52 at regular intervals from main level.
54 2011-07-21: Simon Goldschmidt
55 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
56 sending an ARP request when an ARP entry is used in the last minute before
59 2011-07-04: Simon Goldschmidt
60 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
62 2011-06-26: Simon Goldschmidt
63 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
64 updating its documentation only.
66 2011-06-26: Simon Goldschmidt
67 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
70 2011-06-26: Simon Goldschmidt
71 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
79 2011-03-27: Simon Goldschmidt
80 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
81 calculate it in tcp_zero_window_probe (the only place where it was used).
83 2010-11-21: Simon Goldschmidt
84 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
87 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
88 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
89 IP_MULTICAST_LOOP at socket- and raw-API level.
91 2010-06-16: Simon Goldschmidt
92 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
93 link-layer-addressed UDP traffic to be received while a netif is down (just
94 like DHCP during configuration)
96 2010-05-22: Simon Goldschmidt
97 * many many files: bug #27352: removed packing from ip_addr_t, the packed
98 version is now only used in protocol headers. Added global storage for
99 current src/dest IP address while in input functions.
101 2010-05-16: Simon Goldschmidt
102 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
103 calculation (and use them throughout the stack where applicable)
105 2010-05-16: Simon Goldschmidt
106 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
107 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
109 2010-05-16: Simon Goldschmidt
110 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
111 MEMP pool instead of the heap
113 2010-05-13: Simon Goldschmidt
114 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
115 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
116 packets to more than one pcb.
118 2010-05-02: Simon Goldschmidt
119 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
120 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
122 2010-04-30: Simon Goldschmidt
123 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
124 take a precalculated checksum, added pbuf_fill_chksum() to copy data
125 into a pbuf and at the same time calculating the checksum for that data
127 2010-04-29: Simon Goldschmidt
128 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
129 2-byte-aligned IP addresses and MAC addresses
131 2010-04-28: Patch by Bill Auerbach
132 * ip.c: Inline generating IP checksum to save a function call
134 2010-04-14: Simon Goldschmidt
135 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
136 tcpip_thread processes messages or timeouts to implement a watchdog.
138 2010-03-28: Simon Goldschmidt
139 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
140 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
142 2010-03-27: Simon Goldschmidt
143 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
144 etharp_query to prevent unnecessary function calls (inspired by
147 2010-03-20: Simon Goldschmidt
148 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
149 since the linker cannot do this automatically to save space.
151 2010-03-20: Simon Goldschmidt
152 * opt.h, etharp.c/.h: Added support for static ARP table entries
154 2010-03-14: Simon Goldschmidt
155 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
156 when creating TCP segments, not when (re-)transmitting them.
158 2010-03-07: Simon Goldschmidt
159 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
160 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
161 This should speed up receiving data on sockets as the select code in
162 event_callback is only executed when select is waiting.
164 2010-03-06: Simon Goldschmidt
165 * tcp_out.c: task #7013 (Create option to have all packets delivered to
166 netif->output in one piece): Always copy to try to create single pbufs
169 2010-03-06: Simon Goldschmidt
170 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
171 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
172 for tcp netconns to receive pbufs, not netbufs; use that function
175 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
176 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
177 Work on tcp_enqueue: Don't waste memory when chaining segments,
178 added option TCP_OVERSIZE to prevent creating many small pbufs when
179 calling tcp_write with many small blocks of data. Instead, pbufs are
180 allocated larger than needed and the space is used for later calls to
183 2010-02-21: Simon Goldschmidt
184 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
187 2010-02-21: Simon Goldschmidt
188 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
189 implementation of tcp to make API usage cleare to application programmers
191 2010-02-14: Simon Goldschmidt/Stephane Lesage
192 * ip_addr.h: Improved some defines working on ip addresses, added faster
193 macro to copy addresses that cannot be NULL
195 2010-02-13: Simon Goldschmidt
196 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
197 blocking send operation)
199 2010-02-12: Simon Goldschmidt
200 * sockets.c/.h: Added a minimal version of posix fctl() to have a
201 standardised way to set O_NONBLOCK for nonblocking sockets.
203 2010-02-12: Simon Goldschmidt
204 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
205 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
206 and dhcp work with user-allocated structs instead of callin mem_malloc
208 2010-02-12: Simon Goldschmidt/Jeff Barber
209 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
210 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
212 2010-02-12: Simon Goldschmidt
213 * sys layer: task #10139 (Prefer statically allocated memory): converted
214 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
215 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
216 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
217 to let sys.h use binary semaphores instead of mutexes - as before)
219 2010-02-09: Simon Goldschmidt (Simon Kallweit)
220 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
221 (Restart system timeout handling)
223 2010-02-09: Simon Goldschmidt
224 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
225 netif.c) - loopif does not have to be created by the port any more,
226 just define LWIP_HAVE_LOOPIF to 1.
228 2010-02-08: Simon Goldschmidt
229 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
230 inet_ntoa_r/ipaddr_ntoa_r
232 2010-02-08: Simon Goldschmidt
233 * netif.h: Added netif_s/get_igmp_mac_filter() macros
235 2010-02-05: Simon Goldschmidt
236 * netif.h: Added function-like macros to get/set the hostname on a netif
238 2010-02-04: Simon Goldschmidt
239 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
240 make changing the actual implementation behind the typedef easier.
242 2010-02-01: Simon Goldschmidt
243 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
244 for allocating memory when getaddrinfo() is called.
246 2010-01-31: Simon Goldschmidt
247 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
248 them once instead of parsing for every option. This also removes
249 the need for mem_malloc from dhcp_recv and makes it possible to
250 correctly retrieve the BOOTP file.
252 2010-01-30: simon Goldschmidt
253 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
256 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
257 * api.h, api_msg.c, sockets.c: Added except set support in select
260 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
261 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
262 Add non-blocking support for connect (partly from patch #6860),
263 plus many cleanups in socket & netconn API.
265 2010-01-27: Simon Goldschmidt
266 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
267 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
269 2010-01-26: Simon Goldschmidt
270 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
272 2010-01-14: Simon Goldschmidt
273 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
274 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
276 2010-01-13: Simon Goldschmidt
277 * mem.c: The heap now may be moved to user-defined memory by defining
278 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
279 (patch #6966 and bug #26133)
281 2010-01-10: Simon Goldschmidt (Bill Auerbach)
282 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
285 2010-01-10: Simon Goldschmidt
286 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
287 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
289 2009-12-31: Simon Goldschmidt
290 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
291 added timers.c/.h: Separated timer implementation from semaphore/mbox
292 implementation, moved timer implementation to timers.c/.h, timers are
293 now only called from tcpip_thread or by explicitly checking them.
296 2009-12-27: Simon Goldschmidt
297 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
298 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
303 2011-04-20: Simon Goldschmidt
304 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
306 2011-04-13: Simon Goldschmidt
307 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
308 using ports in the IANA private/dynamic range (49152 through 65535).
310 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
311 * etharp.h/.c: Fixed broken VLAN support.
313 2011-03-27: Simon Goldschmidt
314 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
315 pcbs) by checking if the pcb was bound (local_port != 0).
317 2011-03-27: Simon Goldschmidt
318 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
320 2011-03-27: Simon Goldschmidt
321 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
322 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
324 2011-03-27: Simon Goldschmidt
325 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
326 is present never times out) by starting retransmission timer before checking
329 2011-03-22: Simon Goldschmidt
330 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
331 calling sio_read_abort() if the file descriptor is valid.
333 2011-03-14: Simon Goldschmidt
334 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
335 more than once can render a socket useless) since it mainly involves changing
336 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
338 2011-03-13: Simon Goldschmidt
339 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
340 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
341 use EALRADY instead of -1
343 2011-03-13: Simon Goldschmidt
344 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
345 connection has been aborted by err_tcp (since this is not a normal closing
348 2011-03-13: Simon Goldschmidt
349 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
350 with pcb->state != CLOSED
352 2011-02-17: Simon Goldschmidt
353 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
356 2011-02-17: Simon Goldschmidt
357 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
359 2011-01-24: Simon Goldschmidt
360 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
362 2010-12-02: Simon Goldschmidt
363 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
365 2010-11-23: Simon Goldschmidt
366 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
367 LWIP_SO_RCVBUF and ioctl/FIONREAD.
369 2010-11-23: Simon Goldschmidt
370 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
371 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
373 2010-11-23: Simon Goldschmidt
374 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
375 refusing 'refused_data' again.
377 2010-11-22: Simon Goldschmidt
378 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
379 after a successful nonblocking connection.
381 2010-11-22: Simon Goldschmidt
382 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
383 must be sent link-local
385 2010-11-22: Simon Goldschmidt
386 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
389 2010-11-20: Simon Goldschmidt
390 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
392 2010-11-20: Simon Goldschmidt
393 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
394 resemble other stacks.
396 2010-11-20: Simon Goldschmidt
397 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
398 no-copy TCP writes will never succeed.
400 2010-11-20: Simon Goldschmidt
401 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
402 not match documentation: return ERR_ARG instead of ERR_VAL if not
403 initialized or wrong argument.
405 2010-10-20: Simon Goldschmidt
406 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
408 2010-10-05: Simon Goldschmidt
409 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
410 replugging the network cable after an AutoIP address was assigned.
412 2010-08-10: Simon Goldschmidt
413 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
415 2010-08-03: Simon Goldschmidt
416 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
418 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
419 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
420 endian architectures)
422 2010-07-28: Simon Goldschmidt
423 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
426 2010-07-27: Simon Goldschmidt
427 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
428 harm but never did anything
430 2010-07-21: Simon Goldschmidt
431 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
434 2010-07-16: Kieran Mansley
435 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
437 2010-07-10: Simon Goldschmidt
438 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
440 2010-06-30: Simon Goldschmidt
441 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
444 2010-06-28: Kieran Mansley
445 * timers.c remove unportable printing of C function pointers
447 2010-06-24: Simon Goldschmidt
448 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
449 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
451 2010-06-24: Simon Goldschmidt
452 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
453 implemented shutdown at socket level.
455 2010-06-21: Simon Goldschmidt
456 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
457 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
458 custom pbufs that reference other (original) pbufs. Additionally set
459 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
461 2010-06-15: Simon Goldschmidt
462 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
464 2010-06-14: Simon Goldschmidt
465 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
467 2010-06-12: Simon Goldschmidt
468 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
471 2010-05-17: Simon Goldschmidt
472 * netdb.c: Correctly NULL-terminate h_addr_list
474 2010-05-16: Simon Goldschmidt
475 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
476 "symbol already defined" i.e. when linking to winsock
478 2010-05-05: Simon Goldschmidt
479 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
482 2010-04-21: Simon Goldschmidt
483 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
486 2010-03-28: Luca Ceresoli
487 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
489 2010-03-27: Luca Ceresoli
490 * mib2.c: patch #7130: remove meaningless const qualifiers
492 2010-03-26: Simon Goldschmidt
493 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
495 2010-03-26: Simon Goldschmidt
496 * various files: Fixed compiling with different options disabled (TCP/UDP),
497 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
499 2010-03-25: Simon Goldschmidt
500 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
502 2010-03-25: Simon Goldschmidt
503 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
504 overrunning our rcv_wnd in ooseq case.
506 2010-03-22: Simon Goldschmidt
507 * tcp.c: tcp_listen() did not copy the pcb's prio.
509 2010-03-19: Simon Goldschmidt
510 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
512 2010-03-14: Simon Goldschmidt
513 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
514 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
515 and basing PBUF_LINK_HLEN on it.
517 2010-03-08: Simon Goldschmidt
518 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
519 when assiging routable address): when checking incoming packets and
520 aborting existing connection on address change, filter out link-local
523 2010-03-06: Simon Goldschmidt
524 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
526 2010-03-06: Simon Goldschmidt
527 * ipv4/ip.c: Don't try to forward link-local addresses
529 2010-03-06: Simon Goldschmidt
530 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
533 2010-03-05: Simon Goldschmidt
534 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
537 2010-03-05: Simon Goldschmidt
538 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
539 into multiple calls to tcp_write.
541 2010-02-21: Simon Goldschmidt
542 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
543 the implementation of DNS_USES_STATIC_BUF==1)
545 2010-02-20: Simon Goldschmidt
546 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
547 close() vs. shutdown(). Now the application does not get any more
548 recv callbacks after calling tcp_close(). Added tcp_shutdown().
550 2010-02-19: Simon Goldschmidt
551 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
552 confusion with realloc()
554 2010-02-15: Simon Goldschmidt/Stephane Lesage
555 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
558 2010-02-14: Simon Goldschmidt
559 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
560 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
561 admin-status of a netif are up
563 2010-02-14: Simon Goldschmidt
564 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
565 reception and is not really necessary
567 2010-02-14: Simon Goldschmidt
568 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
569 request was directed as us (RFC 826, Packet Reception), otherwise
570 only update existing entries; internalized some functions
572 2010-02-14: Simon Goldschmidt
573 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
574 disabled on netif used for PPPoE) by adding a new netif flag
575 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
576 device but prevents usage of ARP (so that ethernet_input can be used
579 2010-02-12: Simon Goldschmidt
580 * netif.c: netif_set_link_up/down: only do something if the link state
583 2010-02-12: Simon Goldschmidt/Stephane Lesage
584 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
587 2010-02-12: Simon Goldschmidt
588 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
590 2010-02-09: Simon Goldschmidt
591 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
592 (recv() makes receive window update for data that wasn't received by
595 2010-02-09: Simon Goldschmidt/Stephane Lesage
596 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
597 or any netconn_recv() error)
599 2010-02-09: Simon Goldschmidt
600 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
602 2010-02-09: Simon Goldschmidt
603 * netif.c: For loopback packets, adjust the stats- and snmp-counters
604 for the loopback netif.
606 2010-02-08: Simon Goldschmidt
607 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
608 since they are not used anywhere else.
610 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
611 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
612 (patch from bug #28798)
614 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
615 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
616 another bug when LWIP_RAND() returns zero.
618 2010-02-04: Simon Goldschmidt
619 * nearly every file: Use macros defined in ip_addr.h (some of them new)
620 to work with IP addresses (preparation for bug #27352 - Change ip_addr
621 from struct to typedef (u32_t) - and better code).
623 2010-01-31: Simon Goldschmidt
624 * netif.c: Don't call the link-callback from netif_set_up/down() since
625 this invalidly retriggers DHCP.
627 2010-01-29: Simon Goldschmidt
628 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
629 portability file inet.h and its contents from the stack: moved htonX-
630 functions to def.h (and the new def.c - they are not ipv4 dependent),
631 let inet.h depend on ip_addr.h and not the other way round.
632 This fixes bug #28732.
634 2010-01-28: Kieran Mansley
635 * tcp.c: Ensure ssthresh >= 2*MSS
637 2010-01-27: Simon Goldschmidt
638 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
639 callback can lead to accessing unallocated memory. As a consequence,
640 ERR_ABRT means the application has called tcp_abort()!
642 2010-01-25: Simon Goldschmidt
643 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
644 not implemented in SNMP): write-only or not-accessible are still
645 returned by getnext (though not by get)
647 2010-01-24: Simon Goldschmidt
648 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
649 not use reserved C/C++ keywords
651 2010-01-23: Simon Goldschmidt
652 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
655 2010-01-21: Simon Goldschmidt
656 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
657 if tcp_enqueue fails) both in raw- and netconn-API
659 2010-01-19: Simon Goldschmidt
660 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
662 2010-01-18: Iordan Neshev/Simon Goldschmidt
663 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
664 bugfix backports from 2.4.x.
666 2010-01-18: Simon Goldschmidt
667 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
669 2010-01-17: Simon Goldschmidt
670 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
671 task #10102: "netconn: clean up conn->err threading issues" by adding
672 error return value to struct api_msg_msg
674 2010-01-17: Simon Goldschmidt
675 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
676 to return err_t (bugs #27709 and #28087)
678 2010-01-14: Simon Goldschmidt
679 * ...: Use typedef for function prototypes throughout the stack.
681 2010-01-13: Simon Goldschmidt
682 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
683 window = 0) by correctly draining recvmbox/acceptmbox
685 2010-01-11: Simon Goldschmidt
686 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
687 erroneous callbacks) by copying the code from recent pppd
689 2010-01-10: Simon Goldschmidt
690 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
692 2010-01-10: Simon Goldschmidt
693 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
695 2010-01-08: Simon Goldschmidt
696 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
698 2010-01-08: Simon Goldschmidt
699 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
700 passed to dns_local_addhost() might be volatile
702 2010-01-07: Simon Goldschmidt
703 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
705 2010-01-06: Simon Goldschmidt
706 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
708 2009-12-31: Simon Goldschmidt
709 * many ppp files: Reorganised PPP source code from ucip structure to pppd
710 structure to easily compare our code against the pppd code (around v2.3.1)
712 2009-12-27: Simon Goldschmidt
713 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
721 2009-10-27 Simon Goldschmidt/Stephan Lesage
722 * netifapi.c/.h: Added netifapi_netif_set_addr()
724 2009-10-07 Simon Goldschmidt/Fabian Koch
725 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
726 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
728 2009-08-26 Simon Goldschmidt/Simon Kallweit
729 * slipif.c/.h: bug #26397: SLIP polling support
731 2009-08-25 Simon Goldschmidt
732 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
733 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
735 2009-08-25 Simon Goldschmidt
736 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
738 2009-08-24 Jakob Stoklund Olesen
739 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
740 to netif_set_link_up().
742 2009-08-23 Simon Goldschmidt
743 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
744 to a human-readable string.
748 2009-12-24: Kieran Mansley
749 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
752 2009-12-06: Simon Goldschmidt
753 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
754 be statically allocated (like in ucip)
756 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
757 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
759 2009-12-03: Simon Goldschmidt
760 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
761 could have non-zero length
763 2009-12-02: Simon Goldschmidt
764 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
765 tcp_input_pcb until after calling the pcb's callbacks
767 2009-11-29: Simon Goldschmidt
768 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
769 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
771 2009-11-29: Simon Goldschmidt
772 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
773 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
775 2009-11-26: Simon Goldschmidt
776 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
779 2009-11-26: Simon Goldschmidt
780 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
781 algorithm at PCB level
783 2009-11-22: Simon Goldschmidt
784 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
786 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
787 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
788 reusing time-wait pcb
790 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
791 * sockets.c: Fixed bug #28062: Data received directly after accepting
792 does not wake up select
794 2009-11-11: Simon Goldschmidt
795 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
797 2009-10-30: Simon Goldschmidt
798 * opt.h: Increased default value for TCP_MSS to 536, updated default
799 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
801 2009-10-28: Kieran Mansley
802 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
803 to follow algorithm from TCP/IP Illustrated
805 2009-10-27: Kieran Mansley
806 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
808 2009-10-25: Simon Goldschmidt
809 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
810 pcb->recv is NULL to keep rcv_wnd correct)
812 2009-10-25: Simon Goldschmidt
813 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
815 2009-10-23: Simon Goldschmidt (David Empson)
816 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
818 2009-10-21: Simon Goldschmidt
819 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
820 trailing 1 byte len (SYN/FIN)
822 2009-10-21: Simon Goldschmidt
823 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
825 2009-10-19: Simon Goldschmidt
826 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
827 conditional code to assert where applicable), check pbuf length before
828 testing for valid reply
830 2009-10-19: Simon Goldschmidt
831 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
832 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
834 2009-10-16: Simon Goldschmidt
835 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
836 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
839 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
840 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
842 2009-10-15: Simon Goldschmidt
843 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
846 2009-10-15: Simon Goldschmidt
847 * autoip.c: Fixed bug #27704: autoip starts with wrong address
848 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
849 of network byte order
851 2009-10-11 Simon Goldschmidt (Jörg Kesten)
852 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
853 which are not consecutive when retransmitting unacked segments
855 2009-10-09 Simon Goldschmidt
856 * opt.h: Fixed default values of some stats to only be enabled if used
857 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
859 2009-08-30 Simon Goldschmidt
860 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
861 function" by checking for loopback before calling ip_frag
863 2009-08-25 Simon Goldschmidt
864 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
866 2009-08-23 Simon Goldschmidt
867 * ppp.c: bug #27078: Possible memory leak in pppInit()
869 2009-08-23 Simon Goldschmidt
870 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
873 2009-08-23 Simon Goldschmidt
874 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
875 Fixed wrong parenthesis, added check in init.c
877 2009-08-23 Simon Goldschmidt
878 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
880 2009-08-23 Simon Goldschmidt
881 * many ppp files: bug #27267: Added include to string.h where needed
883 2009-08-23 Simon Goldschmidt
884 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
891 2009-05-10 Simon Goldschmidt
892 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
893 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
894 one pbuf to help MACs that don't support scatter-gather DMA.
896 2009-05-09 Simon Goldschmidt
897 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
898 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
900 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
901 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
902 extended info about the currently received packet.
904 2009-04-27 Simon Goldschmidt
905 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
907 2009-04-25 Simon Goldschmidt
908 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
909 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
911 2009-04-21 Simon Goldschmidt
912 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
913 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
914 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
915 as an external function for lookup.
917 2009-04-15 Simon Goldschmidt
918 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
920 2009-03-31 Kieran Mansley
921 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
922 TCP timestamp options, off by default. Rework tcp_enqueue() to
923 take option flags rather than specified option data
925 2009-02-18 Simon Goldschmidt
926 * cc.h: Added printf formatter for size_t: SZT_F
928 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
929 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
932 2009-02-12 Simon Goldschmidt
933 * init.h: Added LWIP_VERSION to get the current version of the stack
935 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
936 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
937 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
940 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
941 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
942 is only used by UDPLITE at present, so conditionalise it.
944 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
945 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
946 "seed" address. This should reduce AUTOIP conflicts if
947 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
949 2008-10-02 Jonathan Larmour and Rishi Khan
950 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
953 2008-06-30 Simon Goldschmidt
954 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
955 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
956 mem_free to run between mem_malloc iterations. Added illegal counter for
959 2008-06-27 Simon Goldschmidt
960 * stats.h/.c, some other files: patch #6483: stats module improvement:
961 Added defines to display each module's statistic individually, added stats
962 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
964 2008-06-17 Simon Goldschmidt
965 * err.h: patch #6459: Made err_t overridable to use a more efficient type
966 (define LWIP_ERR_T in cc.h)
968 2008-06-17 Simon Goldschmidt
969 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
972 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
973 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
974 modified version of patch # 6370: Moved loopif code to netif.c so that
975 loopback traffic is supported on all netifs (all local IPs).
976 Added option to limit loopback packets for each netifs.
980 2009-08-12 Kieran Mansley
981 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
982 out of window or out of order properly
984 2009-08-12 Kieran Mansley
985 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
987 2009-07-28 Simon Goldschmidt
988 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
990 2009-07-27 Kieran Mansley
991 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
993 2009-07-09 Kieran Mansley
994 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
995 recv_avail and don't increment counters until message successfully
998 2009-06-25 Kieran Mansley
999 * api_msg.c api.h: BUG26722: initialise netconn write variables
1002 2009-06-25 Kieran Mansley
1003 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1005 2009-06-25 Kieran Mansley
1006 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1007 simultaneous close behaviour, and make snd_nxt have the same meaning
1010 2009-05-12 Simon Goldschmidt
1011 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1012 arp_table / uses etharp_query" by adding etharp_gratuitous()
1014 2009-05-12 Simon Goldschmidt
1015 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1016 to the IP header (used by igmp_ip_output_if)
1018 2009-05-06 Simon Goldschmidt
1019 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1020 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1022 2009-05-05 Simon Goldschmidt
1023 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1026 2009-05-04 Simon Goldschmidt
1027 * init.c: snmp was not initialized in lwip_init()
1029 2009-05-04 Frédéric Bernon
1030 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1032 2009-05-03 Simon Goldschmidt
1033 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1034 (and unsent->next == NULL)
1036 2009-05-02 Simon Goldschmidt
1037 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1038 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1040 2009-05-02 Simon Goldschmidt
1041 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1043 2009-05-01 Simon Goldschmidt
1044 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1046 2009-05-01 Simon Goldschmidt
1047 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1049 2009-04-29 Frédéric Bernon
1050 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1051 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1052 of broadcast packets even when this option wasn't set. Port maintainers
1053 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1054 If you want this option also filter broadcast on recv operations, you also
1055 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1057 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1058 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1059 DHCP/AUTOIP cooperation
1061 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1062 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1063 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1064 right place in tcp_output and tcp_rexmit).
1066 2009-04-25 Simon Goldschmidt
1067 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1068 when debugging": memp_sizes contained the wrong sizes (including sanity
1069 regions); memp pools for MEM_USE_POOLS were too small
1071 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1072 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1073 behavior, with with ip address string not ended by a '\0', a space or a
1076 2009-04-19 Simon Goldschmidt
1077 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1078 pcb->err is called, not pcb->connected (with an error code).
1080 2009-04-19 Simon Goldschmidt
1081 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1082 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1084 2009-04-19 Simon Goldschmidt
1085 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1086 in the header pbuf, not the data pbuf)
1088 2009-04-18 Simon Goldschmidt
1089 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1091 2009-04-15 Simon Goldschmidt
1092 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1094 2009-04-15 Simon Goldschmidt
1095 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1097 2009-04-15 Simon Goldschmidt
1098 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1099 ip_hinted_output() (for smaller code mainly)
1101 2009-04-15 Simon Goldschmidt
1102 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1104 2009-04-15 Simon Goldschmidt
1105 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1106 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1107 is big enough in dhcp_start
1109 2009-04-15 Simon Goldschmidt
1110 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1112 2009-04-15 Simon Goldschmidt
1113 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1115 2009-04-15 Simon Goldschmidt
1116 * sockets.c: bug #26121: set_errno can be overridden
1118 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1119 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1122 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1123 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1126 2009-03-31 Kieran Mansley
1127 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1128 updates are calculated and sent (BUG20515)
1130 * tcp_in.c: cope with SYN packets received during established states,
1131 and retransmission of initial SYN.
1133 * tcp_out.c: set push bit correctly when tcp segments are merged
1135 2009-03-27 Kieran Mansley
1136 * tcp_out.c set window correctly on probes (correcting change made
1139 2009-03-26 Kieran Mansley
1140 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1141 connections where no reset required (bug #25622)
1143 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1146 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1147 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1148 too small depending on MEM_ALIGNMENT
1150 2009-02-16 Simon Goldschmidt
1151 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1152 converted size argument of netconn_write to 'size_t'
1154 2009-02-16 Simon Goldschmidt
1155 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1156 by moving accept callback function pointer to TCP_PCB_COMMON
1158 2009-02-12 Simon Goldschmidt
1159 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1162 2009-02-11 Simon Goldschmidt
1163 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1165 2009-02-11 Simon Goldschmidt
1166 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1167 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1169 2009-02-10 Simon Goldschmidt
1170 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1171 Accepts_pending is decrease on a corresponding listen pcb when a connection
1172 in state SYN_RCVD is close.
1174 2009-01-28 Jonathan Larmour
1175 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1178 2008-12-19 Simon Goldschmidt
1179 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1181 2008-12-10 Tamas Somogyi, Frédéric Bernon
1182 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1183 port uses deleted netbuf.
1185 2008-10-18 Simon Goldschmidt
1186 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1189 2008-10-15 Simon Goldschmidt
1190 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1191 by packing the struct ip_reass_helper.
1193 2008-10-03 David Woodhouse, Jonathan Larmour
1194 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1196 2008-10-02 Jonathan Larmour
1197 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1198 padding is included.
1200 2008-09-30 Jonathan Larmour
1201 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1202 assertion check that addrlen isn't NULL.
1204 2008-09-30 Jonathan Larmour
1205 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1207 2008-08-26 Simon Goldschmidt
1208 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1209 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1211 2008-08-14 Simon Goldschmidt
1212 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1213 tcp_close returns != ERR_OK)
1215 2008-07-08 Frédéric Bernon
1216 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1217 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1219 2008-06-24 Jonathan Larmour
1220 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1221 if tcp_seg_copy fails.
1223 2008-06-17 Simon Goldschmidt
1224 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1225 and created defines for swapping bytes and folding u32 to u16.
1227 2008-05-30 Kieran Mansley
1228 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1229 rather than rcv_ann_wnd when deciding if packets are in-window.
1230 Contributed by <arasmussen@consultant.datasys.swri.edu>
1232 2008-05-30 Kieran Mansley
1233 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1234 passing as function pointers when MEM_LIBC_MALLOC is defined.
1236 2008-05-09 Jonathan Larmour
1237 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1238 stop it being treated as a fatal error.
1240 2008-04-15 Simon Goldschmidt
1241 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1244 2008-03-27 Simon Goldschmidt
1245 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1246 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1247 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1248 or heap memory from interrupt context
1250 2008-03-26 Simon Goldschmidt
1251 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1252 host sent a zero mss as TCP option.
1259 2008-03-10 Jonathan Larmour
1260 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1261 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1263 2008-01-22 Frédéric Bernon
1264 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1265 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1267 2008-01-14 Frédéric Bernon
1268 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1269 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1270 tcp_recv callback (see rawapi.txt).
1272 2008-01-14 Frédéric Bernon, Marc Chaland
1273 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1275 2008-01-12 Frédéric Bernon
1276 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1277 netconn::sem per netconn::op_completed like suggested for the task #7490
1278 "Add return value to sys_mbox_post".
1280 2008-01-12 Frédéric Bernon
1281 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1282 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1283 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1285 2008-01-10 Frédéric Bernon
1286 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1287 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1288 "blocking" ("block" parameter = 1).
1290 2008-01-10 Frédéric Bernon
1291 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1292 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1293 "Add return value to sys_mbox_post".
1295 2008-01-05 Frédéric Bernon
1296 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1297 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1298 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1299 indicate the number of pointers query by the mailbox. There is three defines
1300 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1301 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1302 parameter in your implementation, but to ignore it to keep the previous behavior.
1303 The new sys_mbox_trypost function return a value to know if the mailbox is
1304 full or if the message is posted. Take a look to sys_arch.txt for more details.
1305 This new function is used in tcpip_input (so, can be called in an interrupt
1306 context since the function is not blocking), and in recv_udp and recv_raw.
1308 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1309 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1310 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1311 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1312 documentation in the rawapi.txt file.
1314 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1315 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1317 2007-12-31 Frédéric Bernon, Luca Ceresoli
1318 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1319 in autoip". The change in etharp_raw could be removed, since all calls to
1320 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1321 wrong in the future.
1323 2007-12-30 Frédéric Bernon, Tom Evans
1324 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1325 Filtering" reported by Tom Evans.
1327 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1328 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1329 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1330 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1331 keep accepting new connections.
1333 2007-12-13 Frédéric Bernon
1334 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1335 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1337 2007-12-12 Frédéric Bernon
1338 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1339 are the one which have ram usage.
1341 2007-12-05 Frédéric Bernon
1342 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1343 set of variables (=0) or a local one (=1). In this last case, your port should
1344 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1345 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1347 2007-12-03 Simon Goldschmidt
1348 * ip.c: ip_input: check if a packet is for inp first before checking all other
1349 netifs on netif_list (speeds up packet receiving in most cases)
1351 2007-11-30 Simon Goldschmidt
1352 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1353 UDP: move a (connected) pcb selected for input to the front of the list of
1354 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1357 2007-11-28 Simon Goldschmidt
1358 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1360 2007-11-25 Simon Goldschmidt
1361 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1364 2007-11-24 Simon Goldschmidt
1365 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1366 to the new file netdb.c; included lwip_getaddrinfo.
1368 2007-11-21 Simon Goldschmidt
1369 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1370 based on the MTU of the netif used to send. Enabled by default. Disable by
1371 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1373 2007-11-19 Frédéric Bernon
1374 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1375 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1376 copy dns payload to parse the response), return an error if there is no place
1377 for a new query, and fix some minor problems.
1379 2007-11-16 Simon Goldschmidt
1380 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1381 removed files: core/inet.c, core/inet6.c
1382 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1383 inet and chksum part; changed includes in all lwIP files as appropriate
1385 2007-11-16 Simon Goldschmidt
1386 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1387 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1388 (gethostbyname/gethostbyname_r).
1390 2007-11-15 Jim Pettinato, Frédéric Bernon
1391 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1392 requests with RAW api interface. Initialization is done in lwip_init() with
1393 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1394 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1395 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1396 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1397 list with points to improve.
1399 2007-11-06 Simon Goldschmidt
1400 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1401 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1402 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1404 2007-11-06 Simon Goldschmidt
1405 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1406 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1407 implementation from netconn api applications.
1409 2007-11-03 Frédéric Bernon
1410 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1411 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1412 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1413 it. This is a first release which have to be improve for TCP. Note it used the
1414 netconn::recv_avail which need to be more "thread-safe" (note there is already
1415 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1417 2007-11-01 Frédéric Bernon, Marc Chaland
1418 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1419 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1420 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1421 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1422 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1424 2007-10-24 Frédéric Bernon
1425 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1426 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1427 some code (like we have talk in "patch #5919 : Create compile switch to remove
1428 select code"), but it could be done later.
1430 2007-10-08 Simon Goldschmidt
1431 * many files: Changed initialization: many init functions are not needed any
1432 more since we now rely on the compiler initializing global and static
1435 2007-10-06 Simon Goldschmidt
1436 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1437 to enqueue the received pbufs so that multiple packets can be reassembled
1438 simultaneously and no static reassembly buffer is needed.
1440 2007-10-05 Simon Goldschmidt
1441 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1442 all netifs (or ports) can use it.
1444 2007-10-05 Frédéric Bernon
1445 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1446 common function to reduce a little bit the footprint (for all functions using
1447 only the "netif" parameter).
1449 2007-10-03 Frédéric Bernon
1450 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1451 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1452 a little bit the footprint (for all functions using only the "netif" parameter).
1454 2007-09-15 Frédéric Bernon
1455 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1456 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1457 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1458 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1460 2007-09-10 Frédéric Bernon
1461 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1462 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1463 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1464 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1465 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1466 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1467 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1468 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1469 when it's queried (any direct call to "sysuptime" is changed by a call to
1470 snmp_get_sysuptime).
1472 2007-09-09 Frédéric Bernon, Bill Florac
1473 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1474 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1475 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1476 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1477 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1478 the next query message to receive the matching multicast streams).
1480 2007-09-08 Frédéric Bernon
1481 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1482 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1483 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1484 Enable to access to these fields with LWIP_TCP=0.
1486 2007-09-05 Frédéric Bernon
1487 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1488 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1489 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1490 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1491 help to reduce footprint, and to reduce "visibility" on the Internet.
1493 2007-09-05 Frédéric Bernon, Bill Florac
1494 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1495 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1496 parameters have to be provided: a task name, and a task stack size. For this
1497 one, since it's platform dependant, you could define the best one for you in
1498 your lwipopts.h. For port maintainers, you can just add these new parameters
1499 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1502 2007-09-05 Frédéric Bernon
1503 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1504 inside init.c for task #7142 "Sanity check user-configurable values".
1506 2007-09-04 Frédéric Bernon, Bill Florac
1507 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1508 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1509 value). It will avoid potential fragmentation problems, use a counter to know
1510 how many times a group is used on an netif, and free it when all applications
1511 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1512 check if LWIP_IGMP!=0).
1514 2007-09-03 Frédéric Bernon
1515 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1516 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1517 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1518 and/or the "interface" field (for netconn layer), for join/leave operations.
1519 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1520 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1522 2007-08-30 Frédéric Bernon
1523 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1524 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1525 with other API (application based on raw API, or future "socket2" API). Ports
1526 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1528 2007-08-30 Frédéric Bernon, Jonathan Larmour
1529 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1530 user-configurable values".
1532 2007-08-29 Frédéric Bernon
1533 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1534 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1535 spirit than the others modules. Modify some IGMP debug traces.
1537 2007-08-29 Frédéric Bernon
1538 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1539 Add lwip_init function to regroup all modules initializations, and to provide
1540 a place to add code for task #7142 "Sanity check user-configurable values".
1541 Ports maintainers should remove direct initializations calls from their code,
1542 and add init.c in their makefiles. Note that lwip_init() function is called
1543 inside tcpip_init, but can also be used by raw api users since all calls are
1544 disabled when matching options are disabled. Also note that their is new options
1545 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1547 2007-08-26 Marc Boucher
1548 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1549 since they can under certain circumstances be called with an invalid conn
1550 pointer after the connection has been closed (and conn has been freed).
1552 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1553 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1554 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1556 2007-08-22 Frédéric Bernon
1557 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1558 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1560 2007-08-22 Frédéric Bernon
1561 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1562 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1563 name is tcpip_input (we keep the name of 1.2.0 function).
1565 2007-08-17 Jared Grubb
1566 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1567 settings into new memp_std.h and optional user file lwippools.h. This adds
1568 more dynamic mempools, and allows the user to create an arbitrary number of
1569 mempools for mem_malloc.
1571 2007-08-16 Marc Boucher
1572 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1573 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1574 close the connection.
1576 2007-08-16 Marc Boucher
1577 * sockets.c: lwip_accept(): check netconn_peer() error return.
1579 2007-08-16 Marc Boucher
1580 * mem.c, mem.h: Added mem_calloc().
1582 2007-08-16 Marc Boucher
1583 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1584 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1585 and starving other message types.
1586 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1588 2007-08-16 Marc Boucher
1589 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1590 type and flgs (later renamed to flags).
1591 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1592 Improved lwip_recvfrom(). TCP push now propagated.
1594 2007-08-16 Marc Boucher
1595 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1598 2007-08-16 Marc Boucher
1599 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1600 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1601 Added PPPoE support and various PPP improvements.
1603 2007-07-25 Simon Goldschmidt
1604 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1605 making netbuf_copy_partial use this function.
1607 2007-07-25 Simon Goldschmidt
1608 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1609 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1612 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1613 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1614 a link callback in the netif struct, and functions to handle it. Be carefull
1615 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1616 if you want to be sure to be compatible with future changes...
1618 2007-06-30 Frédéric Bernon
1619 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1621 2007-06-21 Simon Goldschmidt
1622 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1623 LWIP_AUTOIP =0 and =1 to remove redundant code.
1625 2007-06-21 Simon Goldschmidt
1626 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1627 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1628 heap. This both prevents memory fragmentation and gives a higher speed
1629 at the cost of more memory consumption. Turned off by default.
1631 2007-06-21 Simon Goldschmidt
1632 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1633 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1634 int to be able to send a bigger buffer than 64K with one time (mainly
1635 used from lwip_send).
1637 2007-06-21 Simon Goldschmidt
1638 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1639 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1641 2007-06-21 Simon Goldschmidt
1642 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1643 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1644 changes on low memory or empty send-buffer.
1646 2007-06-18 Simon Goldschmidt
1647 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1648 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1649 used for ethernet and struct eth_addr already had a defined length of 6).
1651 2007-06-17 Simon Goldschmidt
1652 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1653 to disable UDP checksum generation on transmit.
1655 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1656 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1657 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1658 this macro to check "conn" parameter in api_msg.c functions.
1660 2007-06-11 Simon Goldschmidt
1661 * sockets.c, sockets.h: Added UDP lite support for sockets
1663 2007-06-10 Simon Goldschmidt
1664 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1665 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1668 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1669 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1670 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1671 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1672 (see TODO mark in the source code).
1674 2007-06-09 Simon Goldschmidt
1675 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1676 etharp_output() to match netif->output so etharp_output() can be used
1677 directly as netif->output to save one function call.
1679 2007-06-08 Simon Goldschmidt
1680 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1681 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1682 added initialization of those to ethernetif, slipif and loopif.
1684 2007-05-18 Simon Goldschmidt
1685 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1686 (defaulting to off for now) that can be set to 0 to send fragmented
1687 packets by passing PBUF_REFs down the stack.
1689 2007-05-23 Frédéric Bernon
1690 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1691 connections, such present in patch #5959.
1693 2007-05-23 Frédéric Bernon
1694 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1695 code in only one part...
1697 2007-05-18 Simon Goldschmidt
1698 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1699 elements to overflow. This is achieved by adding some bytes before and after
1700 each pool element (increasing their size, of course), filling them with a
1701 prominent value and checking them on freeing the element.
1702 Set it to 2 to also check every element in every pool each time memp_malloc()
1703 or memp_free() is called (slower but more helpful).
1705 2007-05-10 Simon Goldschmidt
1706 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1707 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1710 2007-05-11 Frédéric Bernon
1711 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1712 Include a function pointer instead of a table index in the message to reduce
1713 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1714 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1716 2007-05-10 Simon Goldschmidt
1717 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1718 \ extern "C" {' in all header files. Now you can write your application using
1719 the lwIP stack in C++ and simply #include the core files. Note I have left
1720 out the netif/ppp/*h header files for now, since I don't know which files are
1721 included by applications and which are for internal use only.
1723 2007-05-09 Simon Goldschmidt
1724 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1725 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1726 situations where some compilers might inline the copy and save a function
1727 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1729 2007-05-08 Simon Goldschmidt
1730 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1731 to be overriden in case the C-library malloc implementation is not protected
1732 against concurrent access.
1734 2007-05-04 Simon Goldschmidt (Atte Kojo)
1735 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1736 multiple packets to the same host.
1738 2007-05-04 Frédéric Bernon, Jonathan Larmour
1739 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1740 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1741 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1742 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1743 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1744 these fields are now renamed "addr" & "port".
1746 2007-04-11 Jonathan Larmour
1747 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1748 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1749 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1750 by the port in sys_arch.h if desired.
1752 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1753 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1754 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1755 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1757 2007-04-05 Frédéric Bernon
1758 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1760 2007-04-04 Simon Goldschmidt
1761 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1762 use this for and architecture-independent form to tell the compiler you intentionally
1763 are not using this variable. Can be overriden in cc.h.
1765 2007-03-28 Frédéric Bernon
1766 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1767 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1768 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1769 It will be used by DHCP to register a client hostname, but can also be use when you call
1772 2007-03-28 Frédéric Bernon
1773 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1774 initialize a network interface's flag with. It tell this interface is an ethernet
1775 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1776 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1778 2007-03-26 Frédéric Bernon, Jonathan Larmour
1779 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1780 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1781 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1782 is done in tcpip_init function.
1784 2007-03-22 Frédéric Bernon
1785 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1786 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1787 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1788 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1789 but never used. Fix msg_in.c with the correct #if test for a stat display.
1791 2007-03-21 Kieran Mansley
1792 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1793 Provides callback on netif up/down state change.
1795 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1796 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1797 ip.c, netif.h, tcpip.c, opt.h:
1798 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1799 filter per all network interfaces. Declare a new function in netif to enable to
1800 control the MAC filter (to reduce lwIP traffic processing).
1802 2007-03-11 Frédéric Bernon
1803 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1804 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1805 unless you know what you're doing (default are RFC1122 compliant). Note
1806 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1808 2007-03-08 Frédéric Bernon
1809 * tcp.h: Keepalive values can be configured at compile time, but don't change
1810 this unless you know what you're doing (default are RFC1122 compliant).
1812 2007-03-08 Frédéric Bernon
1813 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1814 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1815 on UDP sockets/netconn.
1817 2007-03-08 Simon Goldschmidt
1818 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1820 2007-03-06 Frédéric Bernon
1821 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1822 Implement SO_RCVTIMEO on UDP sockets/netconn.
1824 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1825 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1826 on the stack and remove the API msg type from memp
1828 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1829 * sockets.h, sockets.c: Move socket initialization to new
1830 lwip_socket_init() function.
1831 NOTE: this changes the API with ports. Ports will have to be
1832 updated to call lwip_socket_init() now.
1834 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1835 * api_lib.c: Use memcpy in netbuf_copy_partial.
1840 2008-03-17 Frédéric Bernon, Ed Kerekes
1841 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1842 some problems to fill the IP header on some targets, use now the
1843 ip.h macros to do it).
1845 2008-03-13 Frédéric Bernon
1846 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1847 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1848 TCP connection caused a crash. Note that using (lwip_)recvfrom
1849 like this is a bit slow and that using (lwip)getpeername is the
1850 good lwip way to do it (so, using recv is faster on tcp sockets).
1852 2008-03-12 Frédéric Bernon, Jonathan Larmour
1853 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1854 recv_raw() does not consume data", and the ping sample (with
1855 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1856 returned the IP payload, without the IP header).
1858 2008-03-04 Jonathan Larmour
1859 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1860 and/or warnings on some systems where mem_size_t and size_t differ.
1861 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1863 2008-03-04 Kieran Mansley (contributions by others)
1864 * Numerous small compiler error/warning fixes from contributions to
1865 mailing list after 1.3.0 release candidate made.
1867 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1868 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1870 2008-01-15 Kieran Mansley
1871 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1872 prevented from sending by a small send window, not just a zero
1875 2008-01-09 Jonathan Larmour
1876 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1877 conflict with Linux system headers.
1879 2008-01-06 Jonathan Larmour
1880 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1881 address entirely on receiving a DHCPNAK, and restarting discovery.
1883 2007-12-21 Simon Goldschmidt
1884 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1885 is not protected" by using new macros for interlocked access to modify/test
1886 netconn->recv_avail.
1888 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1889 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1891 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1892 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1893 of silly window avoidance and prevent lwIP from shrinking the window)
1895 2007-12-04 Simon Goldschmidt
1896 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1897 data packet was lost): add assert that all segment lists are empty in
1898 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1899 state from LAST_ACK in tcp_process
1901 2007-12-02 Simon Goldschmidt
1902 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1903 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1904 has to be set to 0 in lwipopts.h
1906 2007-12-02 Simon Goldschmidt
1907 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1908 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1909 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1910 This is a fix for thread-safety and allocates all items needed for a netconn
1911 when the netconn is created.
1913 2007-11-30 Simon Goldschmidt
1914 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1915 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1916 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1917 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1919 2007-11-27 Simon Goldschmidt
1920 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1921 letting ip_route only use netifs that are up.
1923 2007-11-27 Simon Goldschmidt
1924 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1925 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1926 sockets block most operations once they have seen a fatal error.
1928 2007-11-27 Simon Goldschmidt
1929 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1930 netif to send as an argument (to be able to send on netifs that are down).
1932 2007-11-26 Simon Goldschmidt
1933 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1936 2007-11-21 Simon Goldschmidt
1937 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1938 Fixed the nagle algorithm; nagle now also works for all raw API applications
1939 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1941 2007-11-12 Frédéric Bernon
1942 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1943 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1944 context in do_getaddr.
1946 2007-11-10 Simon Goldschmidt
1947 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1948 happen any time). Now the packet simply isn't enqueued when out of memory.
1950 2007-11-01 Simon Goldschmidt
1951 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1952 TCP_MSS if that is smaller) as long as no MSS option is received from the
1955 2007-11-01 Simon Goldschmidt
1956 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1957 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1958 sending our configured TCP_MSS instead of the one received).
1960 2007-11-01 Simon Goldschmidt
1961 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1962 calculated based on the configured TCP_MSS, not on the MSS option received
1965 2007-10-09 Simon Goldschmidt
1966 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
1967 short and also was generated wrong if checksum coverage != tot_len;
1968 receive: checksum was calculated wrong if checksum coverage != tot_len
1970 2007-10-08 Simon Goldschmidt
1971 * mem.c: lfree was not updated in mem_realloc!
1973 2007-10-07 Frédéric Bernon
1974 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
1975 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
1976 this change cause an API breakage for netconn_addr, since a parameter
1977 type change. Any compiler should cause an error without any changes in
1978 yours netconn_peer calls (so, it can't be a "silent change"). It also
1979 reduce a little bit the footprint for socket layer (lwip_getpeername &
1980 lwip_getsockname use now a common lwip_getaddrname function since
1981 netconn_peer & netconn_addr have the same parameters).
1983 2007-09-20 Simon Goldschmidt
1984 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
1985 by checking tcp_tw_pcbs also
1987 2007-09-19 Simon Goldschmidt
1988 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
1990 2007-09-15 Mike Kleshov
1991 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
1993 2007-09-06 Frédéric Bernon
1994 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
1995 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
1996 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
1997 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
1999 2007-08-30 Frédéric Bernon
2000 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2001 and fix some coding style.
2003 2007-08-28 Frédéric Bernon
2004 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2005 kind of packets. These packets are considered like Ethernet packets (payload
2006 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2007 are considered like IP packets (payload pointing to iphdr).
2009 2007-08-27 Frédéric Bernon
2010 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2011 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2012 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2014 2007-08-24 Kieran Mansley
2015 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2016 compiler (Paradigm C++)
2018 2007-08-09 Frédéric Bernon, Bill Florac
2019 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2020 Introduce IGMP_STATS to centralize statistics management.
2022 2007-08-09 Frédéric Bernon, Bill Florac
2023 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2024 packet on a udp pcb binded on an netif's IP address, and not on "any".
2026 2007-08-09 Frédéric Bernon, Bill Florac
2027 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2028 This is mainly on using lookup/lookfor, and some coding styles...
2030 2007-07-26 Frédéric Bernon (and "thedoctor")
2031 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2033 2007-07-25 Simon Goldschmidt
2034 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2035 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2036 (tcp_output is called again later from tcp timers).
2038 2007-07-25 Simon Goldschmidt
2039 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2040 copy_from_pbuf, which illegally modified the given pbuf.
2042 2007-07-25 Simon Goldschmidt
2043 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2044 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2046 2007-07-24 Simon Goldschmidt
2047 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2048 correct state (must be CLOSED).
2050 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2051 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2052 allocation. It now returns NULL.
2054 2007-07-13 Frédéric Bernon
2055 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2058 2007-07-13 Frédéric Bernon
2059 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2060 because current code doesn't follow rawapi.txt documentation.
2062 2007-07-13 Kieran Mansley
2063 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2064 out of sequence processing of received packets
2066 2007-07-03 Simon Goldschmidt
2067 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2068 assumption is made that this pbuf is in one piece (i.e. not chained). These
2069 assumptions clash with the possibility of converting to fully pool-based
2070 pbuf implementations, where PBUF_RAM pbufs might be chained.
2072 2007-07-03 Simon Goldschmidt
2073 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2074 when closing tcp netconns: removed conn->sem, less context switches when
2075 closing, both netconn_close and netconn_delete should safely close tcp
2078 2007-07-02 Simon Goldschmidt
2079 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2080 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2081 to cache ARP table indices with each pcb instead of single-entry cache for
2084 2007-07-02 Simon Goldschmidt
2085 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2086 warnings when assigning to smaller types.
2088 2007-06-28 Simon Goldschmidt
2089 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2091 2007-06-28 Simon Goldschmidt
2092 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2093 a segment contained chained pbufs)
2095 2007-06-28 Frédéric Bernon
2096 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2097 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2098 possible to define this macro in your own lwipopts.h to always use C library's
2099 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2101 2007-06-28 Frédéric Bernon
2102 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2103 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2104 in api_lib/api_msg (use pointers and not type with table, etc...)
2106 2007-06-26 Simon Goldschmidt
2107 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2109 2007-06-25 Simon Goldschmidt
2110 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2111 for udp packets with no matching pcb.
2113 2007-06-25 Simon Goldschmidt
2114 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2115 could get udp input packets if the remote side matched.
2117 2007-06-13 Simon Goldschmidt
2118 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2119 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2121 2007-06-13 Simon Goldschmidt
2122 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2123 -> netconn_new_..() does not allocate a new connection for unsupported
2126 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2127 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2128 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2130 2007-06-13 Frédéric Bernon, Matthias Weisser
2131 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2132 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2133 some macro names collision with some OS macros.
2135 2007-06-11 Simon Goldschmidt
2136 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2137 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2138 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2141 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2142 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2143 where TCP flags wasn't initialized in tcp_keepalive.
2145 2007-06-03 Simon Goldschmidt
2146 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2147 registered, p->payload was modified without modifying p->len if sending
2148 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2150 2007-06-03 Simon Goldschmidt
2151 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2152 re-used the input pbuf even if that didn't have enough space to include the
2153 link headers. Now the space is tested and a new pbuf is allocated for the
2154 echo response packet if the echo request pbuf isn't big enough.
2156 2007-06-01 Simon Goldschmidt
2157 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2159 2007-05-23 Frédéric Bernon
2160 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2161 allocated by do_listen if success) and netconn_accept errors handling. In
2162 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2163 by ASSERT, except for netconn_delete.
2165 2007-05-23 Frédéric Bernon
2166 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2167 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2168 directly close the recvmbox).
2170 2007-05-22 Simon Goldschmidt
2171 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2172 bound but unconnected (and non-listening) tcp_pcbs.
2174 2007-05-22 Frédéric Bernon
2175 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2176 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2177 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2178 like "sys_timeout" in their application threads.
2180 2007-05-22 Frédéric Bernon
2181 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2182 which parameters are used by which do_xxx function, and to avoid "misusing"
2183 parameters (patch #5938).
2185 2007-05-22 Simon Goldschmidt
2186 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2187 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2188 is only 8 bits wide. This affects the api, as there, the protocol was
2191 2007-05-18 Simon Goldschmidt
2192 * memp.c: addition to patch #5913: smaller pointer was returned but
2193 memp_memory was the same size -> did not save memory.
2195 2007-05-16 Simon Goldschmidt
2196 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2199 2007-05-16 Simon Goldschmidt
2200 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2201 as the one of the netif used for sending to prevent sending from old
2202 addresses after a netif address gets changed (partly fixes bug #3168).
2204 2007-05-16 Frédéric Bernon
2205 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2206 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2207 tcpip_init) because we have to be sure that network interfaces are already
2208 added (mac filter is updated only in igmp_init for the moment).
2210 2007-05-16 Simon Goldschmidt
2211 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2212 into sys_arch_sem_wait calls to prevent timers from running while waiting
2213 for the heap. This fixes bug #19167.
2215 2007-05-13 Simon Goldschmidt
2216 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2217 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2220 2007-05-07 Simon Goldschmidt
2221 * mem.c: Another attempt to fix bug #17922.
2223 2007-05-04 Simon Goldschmidt
2224 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2225 implementation so that it can be reused (don't allocate the target
2226 pbuf inside pbuf_copy()).
2228 2007-05-04 Simon Goldschmidt
2229 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2230 to save a little RAM (next pointer of memp is not used while not in pool).
2233 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2236 2007-04-23 Simon Goldschmidt
2237 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2238 in NULL reference for incoming TCP packets". Loopif has to be configured
2239 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2240 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2241 putting packets on a list that is fed to the stack by calling loopif_poll()
2242 (single-thread / NO_SYS / polling environment where e.g.
2243 netif->input() = ip_input).
2245 2007-04-17 Jonathan Larmour
2246 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2247 the difference between two u16_t's.
2248 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2249 MEMP_NUM_NETCONN in sockets.c right now.
2251 2007-04-12 Jonathan Larmour
2252 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2254 2007-04-12 Kieran Mansley
2255 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2256 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2258 2007-04-11 Simon Goldschmidt
2259 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2260 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2261 pbuf.c: removed functions no needed any more (by etharp).
2263 2007-04-11 Kieran Mansley
2264 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2265 "Constant is long" warnings with 16bit compilers. Contributed by
2266 avatar@mmlab.cse.yzu.edu.tw
2268 2007-04-05 Frédéric Bernon, Jonathan Larmour
2269 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2270 the mailbox is active". Now, the post is only done during a connect, and do_send,
2271 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2273 2007-04-03 Frédéric Bernon
2274 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2275 packets. See patch #5834.
2277 2007-03-30 Frédéric Bernon
2278 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2279 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2281 2007-03-30 Frédéric Bernon
2282 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2283 others environment defines (these were too "generic").
2285 2007-03-28 Frédéric Bernon
2286 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2287 result and can cause a crash. lwip_send now check netbuf_ref result.
2289 2007-03-28 Simon Goldschmidt
2290 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2291 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2292 defined. This is the way it should have been already (looking at
2295 2007-03-28 Kieran Mansley
2296 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2297 IP and TCP headers *and* physical link headers
2299 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2300 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2301 to send some garbage. It is not a definitive solution, but the patch does solve
2302 the problem for most cases.
2304 2007-03-22 Frédéric Bernon
2305 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2307 2007-03-22 Frédéric Bernon
2308 * api_lib.c: somes resources couldn't be freed if there was errors during
2309 netconn_new_with_proto_and_callback.
2311 2007-03-22 Frédéric Bernon
2312 * ethernetif.c: update netif->input calls to check return value. In older ports,
2313 it's a good idea to upgrade them, even if before, there could be another problem
2314 (access to an uninitialized mailbox).
2316 2007-03-21 Simon Goldschmidt
2317 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2318 by casting to unsigned).
2320 2007-03-21 Frédéric Bernon
2321 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2322 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2323 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2324 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2325 faster and more reliable communication between api_lib and tcpip.
2327 2007-03-21 Frédéric Bernon
2328 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2330 2007-03-21 Frédéric Bernon
2331 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2333 2007-03-21 Kieran Mansley
2334 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2337 2007-03-21 Kieran Mansley
2338 * Fix all uses of pbuf_header to check the return value. In some
2339 cases just assert if it fails as I'm not sure how to fix them, but
2340 this is no worse than before when they would carry on regardless
2343 2007-03-21 Kieran Mansley
2344 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2345 comment out missing header include in icmp.c
2347 2007-03-20 Frédéric Bernon
2348 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2349 synchronized with memp.h.
2351 2007-03-20 Frédéric Bernon
2352 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2353 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2354 network interfaces. Also fix a compiler warning.
2356 2007-03-20 Kieran Mansley
2357 * udp.c: Only try and use pbuf_header() to make space for headers if
2358 not a ROM or REF pbuf.
2360 2007-03-19 Frédéric Bernon
2361 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2364 2007-03-19 Frédéric Bernon
2365 * Remove unimplemented "memp_realloc" function from memp.h.
2367 2007-03-11 Simon Goldschmidt
2368 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2371 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2372 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2373 (missing `const' qualifier in socket functions), to get more compatible to
2374 standard POSIX sockets.
2376 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2377 * sockets.c: Add asserts inside bind, connect and sendto to check input
2378 parameters. Remove excessive set_errno() calls after get_socket(), because
2379 errno is set inside of get_socket(). Move last sock_set_errno() inside
2382 2007-03-09 Simon Goldschmidt
2383 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2384 was allocated too small.
2386 2007-03-06 Simon Goldschmidt
2387 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2388 the stack from concurrent access.
2390 2007-03-06 Frédéric Bernon, Dmitry Potapov
2391 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2392 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2394 2007-03-06 Simon Goldschmidt
2395 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2396 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2398 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2399 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2400 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2401 Allow to do ARP processing for incoming packets inside tcpip_thread
2402 (protecting ARP layer against concurrent access). You can also disable
2403 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2404 Older ports have to use tcpip_ethinput.
2406 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2407 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2408 from pointer target type"
2410 2007-03-05 Frédéric Bernon
2411 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2412 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2414 2007-03-04 Frédéric Bernon
2415 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2418 2007-03-04 Frédéric Bernon
2419 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2421 The api_msg struct stay on the stack (not moved to netconn struct).
2423 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2424 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2425 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2426 Also fixed cast warning in pbuf_alloc()
2428 2007-03-04 Simon Goldschmidt
2429 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2430 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2432 2007-03-03 Frédéric Bernon
2433 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2434 It is static, and never used in udp.c except udp_init().
2436 2007-03-02 Simon Goldschmidt
2437 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2438 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2439 initialized before tcpip_thread is running (e.g. before OS is started)
2441 2007-03-02 Frédéric Bernon
2442 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2445 2007-02-28 Kieran Mansley
2446 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2447 outside the region of the pbuf by pbuf_header()
2449 2007-02-28 Kieran Mansley
2450 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2451 when supplied timeout is also non-zero
2455 2006-12-05 Leon Woestenberg
2456 * CHANGELOG: Mention STABLE-1.2.0 release.
2460 2006-12-01 Christiaan Simons
2461 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2462 Note this is a workaround. Currently I have no other options left.
2464 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2465 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2466 to include/lwip/opt.h.
2467 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2468 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2469 * opt.h: Add above new options.
2471 2006-08-18 Christiaan Simons
2472 * tcp_{in,out}.c: added SNMP counters.
2473 * ipv4/ip.c: added SNMP counters.
2474 * ipv4/ip_frag.c: added SNMP counters.
2476 2006-08-08 Christiaan Simons
2477 * etharp.{c,h}: added etharp_find_addr() to read
2478 (stable) ethernet/IP address pair from ARP table
2480 2006-07-14 Christiaan Simons
2481 * mib_structs.c: added
2482 * include/lwip/snmp_structs.h: added
2483 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2485 2006-07-06 Christiaan Simons
2486 * snmp/asn1_{enc,dec}.c added
2488 * snmp/msg_{in,out}.c added
2489 * include/lwip/snmp_asn1.h added
2490 * include/lwip/snmp_msg.h added
2491 * doc/snmp_agent.txt added
2493 2006-03-29 Christiaan Simons
2494 * inet.c, inet.h: Added platform byteswap support.
2495 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2496 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2500 2006-11-30 Christiaan Simons
2501 * dhcp.c: Fixed false triggers of request_timeout.
2503 2006-11-28 Christiaan Simons
2504 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2506 2006-10-11 Christiaan Simons
2507 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2508 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2509 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2510 identifier from 170 to 136 (bug #17574).
2512 2006-10-10 Christiaan Simons
2513 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2515 2006-08-17 Christiaan Simons
2516 * udp.c: Fixed bug #17200, added check for broadcast
2517 destinations for PCBs bound to a unicast address.
2519 2006-08-07 Christiaan Simons
2520 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2522 2006-06-27 Christiaan Simons
2523 * api_msg.c: Applied patch for cold case (bug #11135).
2524 In accept_function() ensure newconn->callback is always initialized.
2526 2006-06-15 Christiaan Simons
2527 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2528 facilitate printing of mem_size_t and u16_t statistics.
2530 2006-06-14 Christiaan Simons
2531 * api_msg.c: Applied patch #5146 to handle allocation failures
2532 in accept() by Kevin Lawson.
2534 2006-05-26 Christiaan Simons
2535 * api_lib.c: Removed conn->sem creation and destruction
2536 from netconn_write() and added sys_sem_new to netconn_new_*.
2540 2006-03-03 Christiaan Simons
2541 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2542 access and added pbuf_alloc() return value checks.
2544 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2545 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2546 now handled by the checksum routine properly.
2548 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2549 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2550 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2552 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2553 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2554 submitted by Mitrani Hiroshi.
2556 2005-12-15 Christiaan Simons
2557 * inet.c: Disabled the added summing routine to preserve code space.
2559 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2560 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2561 Added Curt McDowell's optimized checksumming routine for future
2562 inclusion. Need to create test case for unaliged, aligned, odd,
2563 even length combination of cases on various endianess machines.
2565 2005-12-09 Christiaan Simons
2566 * inet.c: Rewrote standard checksum routine in proper portable C.
2568 2005-11-25 Christiaan Simons
2569 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2570 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2571 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2573 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2574 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2575 routine by Peter Jolasson.
2576 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2578 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2579 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2580 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2582 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2583 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2585 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2586 * udp.c: UDP pcb->recv() was called even when it was NULL.
2590 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2591 * etharp.*: Disabled multiple packets on the ARP queue.
2592 This clashes with TCP queueing.
2594 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2595 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2596 Halved the ARP period, doubled the period counts.
2597 ETHARP_MAX_PENDING now should be at least 2. This prevents
2598 the counter from reaching 0 right away (which would allow
2599 too little time for ARP responses to be received).
2601 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2602 * dhcp.c: Decline messages were not multicast but unicast.
2603 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2604 Do not try hard to insert arbitrary packet's source address,
2605 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2606 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2607 querying an address will see it appear in the cache (DHCP could
2608 suffer from this when a server invalidly gave an in-use address.)
2609 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2610 comparing network addresses (identifiers), not the network masks
2612 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2613 IP address actually belongs to the network of the given interface.
2615 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2616 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2620 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2621 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2622 even if one is already pending, if the rcv_wnd is above a threshold
2623 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2624 delayed ACK in order to open the window if the stack is only receiving data.
2626 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2627 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2629 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2630 * etharp.c: Make sure the first pbuf queued on an ARP entry
2631 is properly ref counted.
2633 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2634 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2635 warnings about comparison.
2636 * pbuf.c: Stopped compiler complaining of empty if statement
2637 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2638 * tcp.c: Stopped compiler complaining of empty if statement
2639 when LWIP_DEBUGF() empty.
2640 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2641 * inet.c: Added a couple of casts to quiet the compiler.
2642 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2644 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2645 * inet.c: Made data types consistent in inet_ntoa().
2646 Added casts for return values of checksum routines, to pacify compiler.
2647 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2648 Small corrections to some debugging statements, to pacify compiler.
2650 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2651 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2652 * ethernetif.c Updated low_level_output() to match prototype for
2653 netif->linkoutput and changed low_level_input() similarly for consistency.
2654 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2655 of raw_recv() in raw.h and so avoid compiler error.
2656 * sockets.c: Added trivial (int) cast to keep compiler happier.
2657 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2663 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2664 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2665 your cc.h file defines this either 1 or 0. If non-defined,
2667 * .c: Added <string.h> and <errno.h> includes where used.
2668 * etharp.c: Made some array indices unsigned.
2670 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2671 * netif.*: Added netif_set_up()/down().
2672 * dhcp.c: Changes to restart program flow.
2674 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2675 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2676 single-pass lookup for different candidates. Should exploit locality.
2678 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2679 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2680 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2681 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2682 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2686 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2687 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2688 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2689 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2690 is to prefix the 14-bit Ethernet headers with two padding bytes.
2692 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2693 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2694 * etharp.c: Fixed the case where the packet that initiates the ARP request
2695 is not queued, and gets lost. Fixed the case where the packets destination
2696 address is already known; we now always queue the packet and perform an ARP
2703 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2704 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2705 * Fixed two possible NULL references in rare cases.
2711 * Fixed DHCP which did not include the IP address in DECLINE messages.
2715 * etharp.c has been hauled over a bit.
2721 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2722 * Packets sent from ARP queue had invalid source hardware address.
2726 * Pass-by ARP requests do now update the cache.
2730 * No longer dependent on ctype.h.
2731 * New socket options.
2732 * Raw IP pcb support.
2738 * Some debug formatters and casts fixed.
2739 * Numereous fixes in PPP.
2743 * DEBUGF now is LWIP_DEBUGF
2744 * pbuf_dechain() has been re-enabled.
2745 * Mentioned the changed use of CVS branches in README.
2751 * Fixed pool pbuf memory leak in pbuf_alloc().
2752 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2753 Reported by Savin Zlobec.
2755 * PBUF_POOL chains had their tot_len field not set for non-first
2756 pbufs. Fixed in pbuf_alloc().
2760 * Added PPP stack contributed by Marc Boucher
2764 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2766 * ARP queueuing now queues the latest packet instead of the first.
2767 This is the RFC recommended behaviour, but can be overridden in
2774 * TCP has been fixed to deal with the new use of the pbuf->ref
2777 * DHCP dhcp_inform() crash bug fixed.
2781 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2782 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2783 Implemented by David Haas.
2789 * The packet buffer implementation has been enhanced to support
2790 zero-copy and copy-on-demand for packet buffers which have their
2791 payloads in application-managed memory.
2792 Implemented by David Haas.
2794 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2795 if an outgoing packet can be directly sent on the link, or perform
2796 a copy-on-demand when necessary.
2798 The application can safely assume the packet is sent, and the RAM
2799 is available to the application directly after calling udp_send()
2800 or similar function.
2804 * ARP_QUEUEING should now correctly work for all cases, including
2806 Implemented by Leon Woestenberg.
2810 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2811 to a '0.0.0.0' IP address.
2813 * The packet buffer implementation is changed. The pbuf->ref counter
2814 meaning has changed, and several pbuf functions have been
2815 adapted accordingly.
2817 * netif drivers have to be changed to set the hardware address length field
2818 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2819 See the contrib/ports/c16x cs8900 driver as a driver example.
2821 * netif's have a dhcp field that must be initialized to NULL by the driver.
2822 See the contrib/ports/c16x cs8900 driver as a driver example.
2824 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2825 logged in CVS but have not been explained here.
2827 (0.5.3) Changes since version 0.5.2
2831 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2832 threads because it wasn't protected by semaphores.
2836 * struct ip_addr now packed.
2838 * The name of the time variable in arp.c has been changed to ctime
2839 to avoid conflicts with the time() function.
2841 (0.5.2) Changes since version 0.5.1
2845 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2849 * A bug in tcp_parseopt() could cause the stack to hang because of a
2850 malformed TCP option.
2852 * The address of new connections in the accept() function in the BSD
2853 socket library was not handled correctly.
2855 * pbuf_dechain() did not update the ->tot_len field of the tail.
2857 * Aborted TCP connections were not handled correctly in all
2862 * All protocol header structs are now packed.
2864 * The ->len field in the tcp_seg structure now counts the actual
2865 amount of data, and does not add one for SYN and FIN segments.
2867 (0.5.1) Changes since version 0.5.0
2871 * Possible to run as a user process under Linux.
2873 * Preliminary support for cross platform packed structs.
2875 * ARP timer now implemented.
2879 * TCP output queue length was badly initialized when opening
2882 * TCP delayed ACKs were not sent correctly.
2884 * Explicit initialization of BSS segment variables.
2886 * read() in BSD socket library could drop data.
2888 * Problems with memory alignment.
2890 * Situations when all TCP buffers were used could lead to
2893 * TCP MSS option wasn't parsed correctly.
2895 * Problems with UDP checksum calculation.
2897 * IP multicast address tests had endianess problems.
2899 * ARP requests had wrong destination hardware address.
2903 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2905 * A ->linkoutput() member was added to struct netif.
2907 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2909 * ntoh* macros are now null definitions for big endian CPUs.
2911 (0.5.0) Changes since version 0.4.2
2915 * Redesigned operating system emulation layer to make porting easier.
2917 * Better control over TCP output buffers.
2919 * Documenation added.
2923 * Locking issues in buffer management.
2925 * Bugfixes in the sequential API.
2927 * IP forwarding could cause memory leakage. This has been fixed.
2931 * Directory structure somewhat changed; the core/ tree has been
2934 (0.4.2) Changes since version 0.4.1
2938 * Experimental ARP implementation added.
2940 * Skeleton Ethernet driver added.
2942 * Experimental BSD socket API library added.
2946 * In very intense situations, memory leakage could occur. This has
2951 * Variables named "data" and "code" have been renamed in order to
2952 avoid name conflicts in certain compilers.
2954 * Variable++ have in appliciable cases been translated to ++variable
2955 since some compilers generate better code in the latter case.
2957 (0.4.1) Changes since version 0.4
2961 * TCP: Connection attempts time out earlier than data
2962 transmissions. Nagle algorithm implemented. Push flag set on the
2963 last segment in a burst.
2965 * UDP: experimental support for UDP-Lite extensions.
2969 * TCP: out of order segments were in some cases handled incorrectly,
2970 and this has now been fixed. Delayed acknowledgements was broken
2971 in 0.4, has now been fixed. Binding to an address that is in use
2972 now results in an error. Reset connections sometimes hung an
2973 application; this has been fixed.
2975 * Checksum calculation sometimes failed for chained pbufs with odd
2976 lengths. This has been fixed.
2978 * API: a lot of bug fixes in the API. The UDP API has been improved
2979 and tested. Error reporting and handling has been
2980 improved. Logical flaws and race conditions for incoming TCP
2981 connections has been found and removed.
2983 * Memory manager: alignment issues. Reallocating memory sometimes
2984 failed, this has been fixed.
2986 * Generic library: bcopy was flawed and has been fixed.
2990 * API: all datatypes has been changed from generic ones such as
2991 ints, to specified ones such as u16_t. Functions that return
2992 errors now have the correct type (err_t).
2994 * General: A lot of code cleaned up and debugging code removed. Many
2995 portability issues have been fixed.
2997 * The license was changed; the advertising clause was removed.
3001 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3002 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3005 (0.4) Changes since version 0.3.1
3007 * Memory management has been radically changed; instead of
3008 allocating memory from a shared heap, memory for objects that are
3009 rapidly allocated and deallocated is now kept in pools. Allocation
3010 and deallocation from those memory pools is very fast. The shared
3011 heap is still present but is used less frequently.
3013 * The memory, memory pool, and packet buffer subsystems now support
3014 4-, 2-, or 1-byte alignment.
3016 * "Out of memory" situations are handled in a more robust way.
3018 * Stack usage has been reduced.
3020 * Easier configuration of lwIP parameters such as memory usage,
3021 TTLs, statistics gathering, etc. All configuration parameters are
3022 now kept in a single header file "lwipopts.h".
3024 * The directory structure has been changed slightly so that all
3025 architecture specific files are kept under the src/arch
3028 * Error propagation has been improved, both in the protocol modules
3031 * The code for the RTXC architecture has been implemented, tested
3034 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3035 the Internet checksum modules.
3037 * Bugs related to porting between a 32-bit and a 16-bit architecture
3038 have been found and corrected.
3040 * The license has been changed slightly to conform more with the
3041 original BSD license, including the advertisement clause.
3043 (0.3.1) Changes since version 0.3
3045 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3046 RAM never returned the RAM when the pbuf was deallocated.
3048 * TCP congestion control, window updates and retransmissions did not
3049 work correctly. This has now been fixed.
3051 * Bugfixes in the API.
3053 (0.3) Changes since version 0.2
3055 * New and improved directory structure. All include files are now
3056 kept in a dedicated include/ directory.
3058 * The API now has proper error handling. A new function,
3059 netconn_err(), now returns an error code for the connection in
3062 * Improvements in the memory management subsystem. The system now
3063 keeps a pointer to the lowest free memory block. A new function,
3064 mem_malloc2() tries to allocate memory once, and if it fails tries
3065 to free some memory and retry the allocation.
3067 * Much testing has been done with limited memory
3068 configurations. lwIP now does a better job when overloaded.
3070 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3072 * Many bugfixes in the TCP code:
3074 - Fixed a bug in tcp_close().
3076 - The TCP receive window was incorrectly closed when out of
3077 sequence segments was received. This has been fixed.
3079 - Connections are now timed-out of the FIN-WAIT-2 state.
3081 - The initial congestion window could in some cases be too
3082 large. This has been fixed.
3084 - The retransmission queue could in some cases be screwed up. This
3087 - TCP RST flag now handled correctly.
3089 - Out of sequence data was in some cases never delivered to the
3090 application. This has been fixed.
3092 - Retransmitted segments now contain the correct acknowledgment
3093 number and advertised window.
3095 - TCP retransmission timeout backoffs are not correctly computed
3096 (ala BSD). After a number of retransmissions, TCP now gives up
3099 * TCP connections now are kept on three lists, one for active
3100 connections, one for listening connections, and one for
3101 connections that are in TIME-WAIT. This greatly speeds up the fast
3102 timeout processing for sending delayed ACKs.
3104 * TCP now provides proper feedback to the application when a
3105 connection has been successfully set up.
3107 * More comments have been added to the code. The code has also been
3108 somewhat cleaned up.
3110 (0.2) Initial public release.