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 2011-08-22: Simon Goldschmidt
45 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
46 merely prevents nagle from not transmitting fast after closing.)
48 2011-07-22: Simon Goldschmidt
49 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
50 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
51 lwip_send() sends as much as possible for non-blocking sockets
53 2011-07-22: Simon Goldschmidt
54 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
55 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
56 at regular intervals from main level.
58 2011-07-21: Simon Goldschmidt
59 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
60 sending an ARP request when an ARP entry is used in the last minute before
63 2011-07-04: Simon Goldschmidt
64 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
66 2011-06-26: Simon Goldschmidt
67 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
68 updating its documentation only.
70 2011-06-26: Simon Goldschmidt
71 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
74 2011-06-26: Simon Goldschmidt
75 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
83 2011-03-27: Simon Goldschmidt
84 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
85 calculate it in tcp_zero_window_probe (the only place where it was used).
87 2010-11-21: Simon Goldschmidt
88 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
91 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
92 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
93 IP_MULTICAST_LOOP at socket- and raw-API level.
95 2010-06-16: Simon Goldschmidt
96 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
97 link-layer-addressed UDP traffic to be received while a netif is down (just
98 like DHCP during configuration)
100 2010-05-22: Simon Goldschmidt
101 * many many files: bug #27352: removed packing from ip_addr_t, the packed
102 version is now only used in protocol headers. Added global storage for
103 current src/dest IP address while in input functions.
105 2010-05-16: Simon Goldschmidt
106 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
107 calculation (and use them throughout the stack where applicable)
109 2010-05-16: Simon Goldschmidt
110 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
111 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
113 2010-05-16: Simon Goldschmidt
114 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
115 MEMP pool instead of the heap
117 2010-05-13: Simon Goldschmidt
118 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
119 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
120 packets to more than one pcb.
122 2010-05-02: Simon Goldschmidt
123 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
124 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
126 2010-04-30: Simon Goldschmidt
127 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
128 take a precalculated checksum, added pbuf_fill_chksum() to copy data
129 into a pbuf and at the same time calculating the checksum for that data
131 2010-04-29: Simon Goldschmidt
132 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
133 2-byte-aligned IP addresses and MAC addresses
135 2010-04-28: Patch by Bill Auerbach
136 * ip.c: Inline generating IP checksum to save a function call
138 2010-04-14: Simon Goldschmidt
139 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
140 tcpip_thread processes messages or timeouts to implement a watchdog.
142 2010-03-28: Simon Goldschmidt
143 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
144 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
146 2010-03-27: Simon Goldschmidt
147 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
148 etharp_query to prevent unnecessary function calls (inspired by
151 2010-03-20: Simon Goldschmidt
152 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
153 since the linker cannot do this automatically to save space.
155 2010-03-20: Simon Goldschmidt
156 * opt.h, etharp.c/.h: Added support for static ARP table entries
158 2010-03-14: Simon Goldschmidt
159 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
160 when creating TCP segments, not when (re-)transmitting them.
162 2010-03-07: Simon Goldschmidt
163 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
164 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
165 This should speed up receiving data on sockets as the select code in
166 event_callback is only executed when select is waiting.
168 2010-03-06: Simon Goldschmidt
169 * tcp_out.c: task #7013 (Create option to have all packets delivered to
170 netif->output in one piece): Always copy to try to create single pbufs
173 2010-03-06: Simon Goldschmidt
174 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
175 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
176 for tcp netconns to receive pbufs, not netbufs; use that function
179 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
180 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
181 Work on tcp_enqueue: Don't waste memory when chaining segments,
182 added option TCP_OVERSIZE to prevent creating many small pbufs when
183 calling tcp_write with many small blocks of data. Instead, pbufs are
184 allocated larger than needed and the space is used for later calls to
187 2010-02-21: Simon Goldschmidt
188 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
191 2010-02-21: Simon Goldschmidt
192 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
193 implementation of tcp to make API usage cleare to application programmers
195 2010-02-14: Simon Goldschmidt/Stephane Lesage
196 * ip_addr.h: Improved some defines working on ip addresses, added faster
197 macro to copy addresses that cannot be NULL
199 2010-02-13: Simon Goldschmidt
200 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
201 blocking send operation)
203 2010-02-12: Simon Goldschmidt
204 * sockets.c/.h: Added a minimal version of posix fctl() to have a
205 standardised way to set O_NONBLOCK for nonblocking sockets.
207 2010-02-12: Simon Goldschmidt
208 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
209 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
210 and dhcp work with user-allocated structs instead of callin mem_malloc
212 2010-02-12: Simon Goldschmidt/Jeff Barber
213 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
214 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
216 2010-02-12: Simon Goldschmidt
217 * sys layer: task #10139 (Prefer statically allocated memory): converted
218 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
219 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
220 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
221 to let sys.h use binary semaphores instead of mutexes - as before)
223 2010-02-09: Simon Goldschmidt (Simon Kallweit)
224 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
225 (Restart system timeout handling)
227 2010-02-09: Simon Goldschmidt
228 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
229 netif.c) - loopif does not have to be created by the port any more,
230 just define LWIP_HAVE_LOOPIF to 1.
232 2010-02-08: Simon Goldschmidt
233 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
234 inet_ntoa_r/ipaddr_ntoa_r
236 2010-02-08: Simon Goldschmidt
237 * netif.h: Added netif_s/get_igmp_mac_filter() macros
239 2010-02-05: Simon Goldschmidt
240 * netif.h: Added function-like macros to get/set the hostname on a netif
242 2010-02-04: Simon Goldschmidt
243 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
244 make changing the actual implementation behind the typedef easier.
246 2010-02-01: Simon Goldschmidt
247 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
248 for allocating memory when getaddrinfo() is called.
250 2010-01-31: Simon Goldschmidt
251 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
252 them once instead of parsing for every option. This also removes
253 the need for mem_malloc from dhcp_recv and makes it possible to
254 correctly retrieve the BOOTP file.
256 2010-01-30: simon Goldschmidt
257 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
260 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
261 * api.h, api_msg.c, sockets.c: Added except set support in select
264 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
265 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
266 Add non-blocking support for connect (partly from patch #6860),
267 plus many cleanups in socket & netconn API.
269 2010-01-27: Simon Goldschmidt
270 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
271 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
273 2010-01-26: Simon Goldschmidt
274 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
276 2010-01-14: Simon Goldschmidt
277 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
278 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
280 2010-01-13: Simon Goldschmidt
281 * mem.c: The heap now may be moved to user-defined memory by defining
282 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
283 (patch #6966 and bug #26133)
285 2010-01-10: Simon Goldschmidt (Bill Auerbach)
286 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
289 2010-01-10: Simon Goldschmidt
290 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
291 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
293 2009-12-31: Simon Goldschmidt
294 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
295 added timers.c/.h: Separated timer implementation from semaphore/mbox
296 implementation, moved timer implementation to timers.c/.h, timers are
297 now only called from tcpip_thread or by explicitly checking them.
300 2009-12-27: Simon Goldschmidt
301 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
302 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
307 2011-04-20: Simon Goldschmidt
308 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
310 2011-04-13: Simon Goldschmidt
311 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
312 using ports in the IANA private/dynamic range (49152 through 65535).
314 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
315 * etharp.h/.c: Fixed broken VLAN support.
317 2011-03-27: Simon Goldschmidt
318 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
319 pcbs) by checking if the pcb was bound (local_port != 0).
321 2011-03-27: Simon Goldschmidt
322 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
324 2011-03-27: Simon Goldschmidt
325 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
326 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
328 2011-03-27: Simon Goldschmidt
329 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
330 is present never times out) by starting retransmission timer before checking
333 2011-03-22: Simon Goldschmidt
334 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
335 calling sio_read_abort() if the file descriptor is valid.
337 2011-03-14: Simon Goldschmidt
338 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
339 more than once can render a socket useless) since it mainly involves changing
340 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
342 2011-03-13: Simon Goldschmidt
343 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
344 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
345 use EALRADY instead of -1
347 2011-03-13: Simon Goldschmidt
348 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
349 connection has been aborted by err_tcp (since this is not a normal closing
352 2011-03-13: Simon Goldschmidt
353 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
354 with pcb->state != CLOSED
356 2011-02-17: Simon Goldschmidt
357 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
360 2011-02-17: Simon Goldschmidt
361 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
363 2011-01-24: Simon Goldschmidt
364 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
366 2010-12-02: Simon Goldschmidt
367 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
369 2010-11-23: Simon Goldschmidt
370 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
371 LWIP_SO_RCVBUF and ioctl/FIONREAD.
373 2010-11-23: Simon Goldschmidt
374 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
375 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
377 2010-11-23: Simon Goldschmidt
378 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
379 refusing 'refused_data' again.
381 2010-11-22: Simon Goldschmidt
382 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
383 after a successful nonblocking connection.
385 2010-11-22: Simon Goldschmidt
386 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
387 must be sent link-local
389 2010-11-22: Simon Goldschmidt
390 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
393 2010-11-20: Simon Goldschmidt
394 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
396 2010-11-20: Simon Goldschmidt
397 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
398 resemble other stacks.
400 2010-11-20: Simon Goldschmidt
401 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
402 no-copy TCP writes will never succeed.
404 2010-11-20: Simon Goldschmidt
405 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
406 not match documentation: return ERR_ARG instead of ERR_VAL if not
407 initialized or wrong argument.
409 2010-10-20: Simon Goldschmidt
410 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
412 2010-10-05: Simon Goldschmidt
413 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
414 replugging the network cable after an AutoIP address was assigned.
416 2010-08-10: Simon Goldschmidt
417 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
419 2010-08-03: Simon Goldschmidt
420 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
422 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
423 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
424 endian architectures)
426 2010-07-28: Simon Goldschmidt
427 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
430 2010-07-27: Simon Goldschmidt
431 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
432 harm but never did anything
434 2010-07-21: Simon Goldschmidt
435 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
438 2010-07-16: Kieran Mansley
439 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
441 2010-07-10: Simon Goldschmidt
442 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
444 2010-06-30: Simon Goldschmidt
445 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
448 2010-06-28: Kieran Mansley
449 * timers.c remove unportable printing of C function pointers
451 2010-06-24: Simon Goldschmidt
452 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
453 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
455 2010-06-24: Simon Goldschmidt
456 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
457 implemented shutdown at socket level.
459 2010-06-21: Simon Goldschmidt
460 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
461 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
462 custom pbufs that reference other (original) pbufs. Additionally set
463 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
465 2010-06-15: Simon Goldschmidt
466 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
468 2010-06-14: Simon Goldschmidt
469 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
471 2010-06-12: Simon Goldschmidt
472 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
475 2010-05-17: Simon Goldschmidt
476 * netdb.c: Correctly NULL-terminate h_addr_list
478 2010-05-16: Simon Goldschmidt
479 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
480 "symbol already defined" i.e. when linking to winsock
482 2010-05-05: Simon Goldschmidt
483 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
486 2010-04-21: Simon Goldschmidt
487 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
490 2010-03-28: Luca Ceresoli
491 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
493 2010-03-27: Luca Ceresoli
494 * mib2.c: patch #7130: remove meaningless const qualifiers
496 2010-03-26: Simon Goldschmidt
497 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
499 2010-03-26: Simon Goldschmidt
500 * various files: Fixed compiling with different options disabled (TCP/UDP),
501 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
503 2010-03-25: Simon Goldschmidt
504 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
506 2010-03-25: Simon Goldschmidt
507 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
508 overrunning our rcv_wnd in ooseq case.
510 2010-03-22: Simon Goldschmidt
511 * tcp.c: tcp_listen() did not copy the pcb's prio.
513 2010-03-19: Simon Goldschmidt
514 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
516 2010-03-14: Simon Goldschmidt
517 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
518 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
519 and basing PBUF_LINK_HLEN on it.
521 2010-03-08: Simon Goldschmidt
522 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
523 when assiging routable address): when checking incoming packets and
524 aborting existing connection on address change, filter out link-local
527 2010-03-06: Simon Goldschmidt
528 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
530 2010-03-06: Simon Goldschmidt
531 * ipv4/ip.c: Don't try to forward link-local addresses
533 2010-03-06: Simon Goldschmidt
534 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
537 2010-03-05: Simon Goldschmidt
538 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
541 2010-03-05: Simon Goldschmidt
542 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
543 into multiple calls to tcp_write.
545 2010-02-21: Simon Goldschmidt
546 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
547 the implementation of DNS_USES_STATIC_BUF==1)
549 2010-02-20: Simon Goldschmidt
550 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
551 close() vs. shutdown(). Now the application does not get any more
552 recv callbacks after calling tcp_close(). Added tcp_shutdown().
554 2010-02-19: Simon Goldschmidt
555 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
556 confusion with realloc()
558 2010-02-15: Simon Goldschmidt/Stephane Lesage
559 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
562 2010-02-14: Simon Goldschmidt
563 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
564 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
565 admin-status of a netif are up
567 2010-02-14: Simon Goldschmidt
568 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
569 reception and is not really necessary
571 2010-02-14: Simon Goldschmidt
572 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
573 request was directed as us (RFC 826, Packet Reception), otherwise
574 only update existing entries; internalized some functions
576 2010-02-14: Simon Goldschmidt
577 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
578 disabled on netif used for PPPoE) by adding a new netif flag
579 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
580 device but prevents usage of ARP (so that ethernet_input can be used
583 2010-02-12: Simon Goldschmidt
584 * netif.c: netif_set_link_up/down: only do something if the link state
587 2010-02-12: Simon Goldschmidt/Stephane Lesage
588 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
591 2010-02-12: Simon Goldschmidt
592 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
594 2010-02-09: Simon Goldschmidt
595 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
596 (recv() makes receive window update for data that wasn't received by
599 2010-02-09: Simon Goldschmidt/Stephane Lesage
600 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
601 or any netconn_recv() error)
603 2010-02-09: Simon Goldschmidt
604 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
606 2010-02-09: Simon Goldschmidt
607 * netif.c: For loopback packets, adjust the stats- and snmp-counters
608 for the loopback netif.
610 2010-02-08: Simon Goldschmidt
611 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
612 since they are not used anywhere else.
614 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
615 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
616 (patch from bug #28798)
618 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
619 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
620 another bug when LWIP_RAND() returns zero.
622 2010-02-04: Simon Goldschmidt
623 * nearly every file: Use macros defined in ip_addr.h (some of them new)
624 to work with IP addresses (preparation for bug #27352 - Change ip_addr
625 from struct to typedef (u32_t) - and better code).
627 2010-01-31: Simon Goldschmidt
628 * netif.c: Don't call the link-callback from netif_set_up/down() since
629 this invalidly retriggers DHCP.
631 2010-01-29: Simon Goldschmidt
632 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
633 portability file inet.h and its contents from the stack: moved htonX-
634 functions to def.h (and the new def.c - they are not ipv4 dependent),
635 let inet.h depend on ip_addr.h and not the other way round.
636 This fixes bug #28732.
638 2010-01-28: Kieran Mansley
639 * tcp.c: Ensure ssthresh >= 2*MSS
641 2010-01-27: Simon Goldschmidt
642 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
643 callback can lead to accessing unallocated memory. As a consequence,
644 ERR_ABRT means the application has called tcp_abort()!
646 2010-01-25: Simon Goldschmidt
647 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
648 not implemented in SNMP): write-only or not-accessible are still
649 returned by getnext (though not by get)
651 2010-01-24: Simon Goldschmidt
652 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
653 not use reserved C/C++ keywords
655 2010-01-23: Simon Goldschmidt
656 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
659 2010-01-21: Simon Goldschmidt
660 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
661 if tcp_enqueue fails) both in raw- and netconn-API
663 2010-01-19: Simon Goldschmidt
664 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
666 2010-01-18: Iordan Neshev/Simon Goldschmidt
667 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
668 bugfix backports from 2.4.x.
670 2010-01-18: Simon Goldschmidt
671 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
673 2010-01-17: Simon Goldschmidt
674 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
675 task #10102: "netconn: clean up conn->err threading issues" by adding
676 error return value to struct api_msg_msg
678 2010-01-17: Simon Goldschmidt
679 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
680 to return err_t (bugs #27709 and #28087)
682 2010-01-14: Simon Goldschmidt
683 * ...: Use typedef for function prototypes throughout the stack.
685 2010-01-13: Simon Goldschmidt
686 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
687 window = 0) by correctly draining recvmbox/acceptmbox
689 2010-01-11: Simon Goldschmidt
690 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
691 erroneous callbacks) by copying the code from recent pppd
693 2010-01-10: Simon Goldschmidt
694 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
696 2010-01-10: Simon Goldschmidt
697 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
699 2010-01-08: Simon Goldschmidt
700 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
702 2010-01-08: Simon Goldschmidt
703 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
704 passed to dns_local_addhost() might be volatile
706 2010-01-07: Simon Goldschmidt
707 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
709 2010-01-06: Simon Goldschmidt
710 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
712 2009-12-31: Simon Goldschmidt
713 * many ppp files: Reorganised PPP source code from ucip structure to pppd
714 structure to easily compare our code against the pppd code (around v2.3.1)
716 2009-12-27: Simon Goldschmidt
717 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
725 2009-10-27 Simon Goldschmidt/Stephan Lesage
726 * netifapi.c/.h: Added netifapi_netif_set_addr()
728 2009-10-07 Simon Goldschmidt/Fabian Koch
729 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
730 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
732 2009-08-26 Simon Goldschmidt/Simon Kallweit
733 * slipif.c/.h: bug #26397: SLIP polling support
735 2009-08-25 Simon Goldschmidt
736 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
737 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
739 2009-08-25 Simon Goldschmidt
740 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
742 2009-08-24 Jakob Stoklund Olesen
743 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
744 to netif_set_link_up().
746 2009-08-23 Simon Goldschmidt
747 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
748 to a human-readable string.
752 2009-12-24: Kieran Mansley
753 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
756 2009-12-06: Simon Goldschmidt
757 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
758 be statically allocated (like in ucip)
760 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
761 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
763 2009-12-03: Simon Goldschmidt
764 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
765 could have non-zero length
767 2009-12-02: Simon Goldschmidt
768 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
769 tcp_input_pcb until after calling the pcb's callbacks
771 2009-11-29: Simon Goldschmidt
772 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
773 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
775 2009-11-29: Simon Goldschmidt
776 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
777 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
779 2009-11-26: Simon Goldschmidt
780 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
783 2009-11-26: Simon Goldschmidt
784 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
785 algorithm at PCB level
787 2009-11-22: Simon Goldschmidt
788 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
790 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
791 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
792 reusing time-wait pcb
794 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
795 * sockets.c: Fixed bug #28062: Data received directly after accepting
796 does not wake up select
798 2009-11-11: Simon Goldschmidt
799 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
801 2009-10-30: Simon Goldschmidt
802 * opt.h: Increased default value for TCP_MSS to 536, updated default
803 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
805 2009-10-28: Kieran Mansley
806 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
807 to follow algorithm from TCP/IP Illustrated
809 2009-10-27: Kieran Mansley
810 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
812 2009-10-25: Simon Goldschmidt
813 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
814 pcb->recv is NULL to keep rcv_wnd correct)
816 2009-10-25: Simon Goldschmidt
817 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
819 2009-10-23: Simon Goldschmidt (David Empson)
820 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
822 2009-10-21: Simon Goldschmidt
823 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
824 trailing 1 byte len (SYN/FIN)
826 2009-10-21: Simon Goldschmidt
827 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
829 2009-10-19: Simon Goldschmidt
830 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
831 conditional code to assert where applicable), check pbuf length before
832 testing for valid reply
834 2009-10-19: Simon Goldschmidt
835 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
836 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
838 2009-10-16: Simon Goldschmidt
839 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
840 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
843 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
844 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
846 2009-10-15: Simon Goldschmidt
847 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
850 2009-10-15: Simon Goldschmidt
851 * autoip.c: Fixed bug #27704: autoip starts with wrong address
852 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
853 of network byte order
855 2009-10-11 Simon Goldschmidt (Jörg Kesten)
856 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
857 which are not consecutive when retransmitting unacked segments
859 2009-10-09 Simon Goldschmidt
860 * opt.h: Fixed default values of some stats to only be enabled if used
861 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
863 2009-08-30 Simon Goldschmidt
864 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
865 function" by checking for loopback before calling ip_frag
867 2009-08-25 Simon Goldschmidt
868 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
870 2009-08-23 Simon Goldschmidt
871 * ppp.c: bug #27078: Possible memory leak in pppInit()
873 2009-08-23 Simon Goldschmidt
874 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
877 2009-08-23 Simon Goldschmidt
878 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
879 Fixed wrong parenthesis, added check in init.c
881 2009-08-23 Simon Goldschmidt
882 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
884 2009-08-23 Simon Goldschmidt
885 * many ppp files: bug #27267: Added include to string.h where needed
887 2009-08-23 Simon Goldschmidt
888 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
895 2009-05-10 Simon Goldschmidt
896 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
897 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
898 one pbuf to help MACs that don't support scatter-gather DMA.
900 2009-05-09 Simon Goldschmidt
901 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
902 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
904 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
905 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
906 extended info about the currently received packet.
908 2009-04-27 Simon Goldschmidt
909 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
911 2009-04-25 Simon Goldschmidt
912 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
913 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
915 2009-04-21 Simon Goldschmidt
916 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
917 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
918 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
919 as an external function for lookup.
921 2009-04-15 Simon Goldschmidt
922 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
924 2009-03-31 Kieran Mansley
925 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
926 TCP timestamp options, off by default. Rework tcp_enqueue() to
927 take option flags rather than specified option data
929 2009-02-18 Simon Goldschmidt
930 * cc.h: Added printf formatter for size_t: SZT_F
932 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
933 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
936 2009-02-12 Simon Goldschmidt
937 * init.h: Added LWIP_VERSION to get the current version of the stack
939 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
940 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
941 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
944 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
945 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
946 is only used by UDPLITE at present, so conditionalise it.
948 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
949 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
950 "seed" address. This should reduce AUTOIP conflicts if
951 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
953 2008-10-02 Jonathan Larmour and Rishi Khan
954 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
957 2008-06-30 Simon Goldschmidt
958 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
959 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
960 mem_free to run between mem_malloc iterations. Added illegal counter for
963 2008-06-27 Simon Goldschmidt
964 * stats.h/.c, some other files: patch #6483: stats module improvement:
965 Added defines to display each module's statistic individually, added stats
966 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
968 2008-06-17 Simon Goldschmidt
969 * err.h: patch #6459: Made err_t overridable to use a more efficient type
970 (define LWIP_ERR_T in cc.h)
972 2008-06-17 Simon Goldschmidt
973 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
976 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
977 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
978 modified version of patch # 6370: Moved loopif code to netif.c so that
979 loopback traffic is supported on all netifs (all local IPs).
980 Added option to limit loopback packets for each netifs.
984 2009-08-12 Kieran Mansley
985 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
986 out of window or out of order properly
988 2009-08-12 Kieran Mansley
989 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
991 2009-07-28 Simon Goldschmidt
992 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
994 2009-07-27 Kieran Mansley
995 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
997 2009-07-09 Kieran Mansley
998 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
999 recv_avail and don't increment counters until message successfully
1002 2009-06-25 Kieran Mansley
1003 * api_msg.c api.h: BUG26722: initialise netconn write variables
1006 2009-06-25 Kieran Mansley
1007 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1009 2009-06-25 Kieran Mansley
1010 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1011 simultaneous close behaviour, and make snd_nxt have the same meaning
1014 2009-05-12 Simon Goldschmidt
1015 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1016 arp_table / uses etharp_query" by adding etharp_gratuitous()
1018 2009-05-12 Simon Goldschmidt
1019 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1020 to the IP header (used by igmp_ip_output_if)
1022 2009-05-06 Simon Goldschmidt
1023 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1024 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1026 2009-05-05 Simon Goldschmidt
1027 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1030 2009-05-04 Simon Goldschmidt
1031 * init.c: snmp was not initialized in lwip_init()
1033 2009-05-04 Frédéric Bernon
1034 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1036 2009-05-03 Simon Goldschmidt
1037 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1038 (and unsent->next == NULL)
1040 2009-05-02 Simon Goldschmidt
1041 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1042 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1044 2009-05-02 Simon Goldschmidt
1045 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1047 2009-05-01 Simon Goldschmidt
1048 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1050 2009-05-01 Simon Goldschmidt
1051 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1053 2009-04-29 Frédéric Bernon
1054 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1055 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1056 of broadcast packets even when this option wasn't set. Port maintainers
1057 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1058 If you want this option also filter broadcast on recv operations, you also
1059 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1061 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1062 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1063 DHCP/AUTOIP cooperation
1065 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1066 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1067 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1068 right place in tcp_output and tcp_rexmit).
1070 2009-04-25 Simon Goldschmidt
1071 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1072 when debugging": memp_sizes contained the wrong sizes (including sanity
1073 regions); memp pools for MEM_USE_POOLS were too small
1075 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1076 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1077 behavior, with with ip address string not ended by a '\0', a space or a
1080 2009-04-19 Simon Goldschmidt
1081 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1082 pcb->err is called, not pcb->connected (with an error code).
1084 2009-04-19 Simon Goldschmidt
1085 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1086 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1088 2009-04-19 Simon Goldschmidt
1089 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1090 in the header pbuf, not the data pbuf)
1092 2009-04-18 Simon Goldschmidt
1093 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1095 2009-04-15 Simon Goldschmidt
1096 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1098 2009-04-15 Simon Goldschmidt
1099 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1101 2009-04-15 Simon Goldschmidt
1102 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1103 ip_hinted_output() (for smaller code mainly)
1105 2009-04-15 Simon Goldschmidt
1106 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1108 2009-04-15 Simon Goldschmidt
1109 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1110 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1111 is big enough in dhcp_start
1113 2009-04-15 Simon Goldschmidt
1114 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1116 2009-04-15 Simon Goldschmidt
1117 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1119 2009-04-15 Simon Goldschmidt
1120 * sockets.c: bug #26121: set_errno can be overridden
1122 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1123 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1126 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1127 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1130 2009-03-31 Kieran Mansley
1131 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1132 updates are calculated and sent (BUG20515)
1134 * tcp_in.c: cope with SYN packets received during established states,
1135 and retransmission of initial SYN.
1137 * tcp_out.c: set push bit correctly when tcp segments are merged
1139 2009-03-27 Kieran Mansley
1140 * tcp_out.c set window correctly on probes (correcting change made
1143 2009-03-26 Kieran Mansley
1144 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1145 connections where no reset required (bug #25622)
1147 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1150 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1151 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1152 too small depending on MEM_ALIGNMENT
1154 2009-02-16 Simon Goldschmidt
1155 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1156 converted size argument of netconn_write to 'size_t'
1158 2009-02-16 Simon Goldschmidt
1159 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1160 by moving accept callback function pointer to TCP_PCB_COMMON
1162 2009-02-12 Simon Goldschmidt
1163 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1166 2009-02-11 Simon Goldschmidt
1167 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1169 2009-02-11 Simon Goldschmidt
1170 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1171 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1173 2009-02-10 Simon Goldschmidt
1174 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1175 Accepts_pending is decrease on a corresponding listen pcb when a connection
1176 in state SYN_RCVD is close.
1178 2009-01-28 Jonathan Larmour
1179 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1182 2008-12-19 Simon Goldschmidt
1183 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1185 2008-12-10 Tamas Somogyi, Frédéric Bernon
1186 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1187 port uses deleted netbuf.
1189 2008-10-18 Simon Goldschmidt
1190 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1193 2008-10-15 Simon Goldschmidt
1194 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1195 by packing the struct ip_reass_helper.
1197 2008-10-03 David Woodhouse, Jonathan Larmour
1198 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1200 2008-10-02 Jonathan Larmour
1201 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1202 padding is included.
1204 2008-09-30 Jonathan Larmour
1205 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1206 assertion check that addrlen isn't NULL.
1208 2008-09-30 Jonathan Larmour
1209 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1211 2008-08-26 Simon Goldschmidt
1212 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1213 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1215 2008-08-14 Simon Goldschmidt
1216 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1217 tcp_close returns != ERR_OK)
1219 2008-07-08 Frédéric Bernon
1220 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1221 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1223 2008-06-24 Jonathan Larmour
1224 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1225 if tcp_seg_copy fails.
1227 2008-06-17 Simon Goldschmidt
1228 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1229 and created defines for swapping bytes and folding u32 to u16.
1231 2008-05-30 Kieran Mansley
1232 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1233 rather than rcv_ann_wnd when deciding if packets are in-window.
1234 Contributed by <arasmussen@consultant.datasys.swri.edu>
1236 2008-05-30 Kieran Mansley
1237 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1238 passing as function pointers when MEM_LIBC_MALLOC is defined.
1240 2008-05-09 Jonathan Larmour
1241 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1242 stop it being treated as a fatal error.
1244 2008-04-15 Simon Goldschmidt
1245 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1248 2008-03-27 Simon Goldschmidt
1249 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1250 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1251 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1252 or heap memory from interrupt context
1254 2008-03-26 Simon Goldschmidt
1255 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1256 host sent a zero mss as TCP option.
1263 2008-03-10 Jonathan Larmour
1264 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1265 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1267 2008-01-22 Frédéric Bernon
1268 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1269 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1271 2008-01-14 Frédéric Bernon
1272 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1273 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1274 tcp_recv callback (see rawapi.txt).
1276 2008-01-14 Frédéric Bernon, Marc Chaland
1277 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1279 2008-01-12 Frédéric Bernon
1280 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1281 netconn::sem per netconn::op_completed like suggested for the task #7490
1282 "Add return value to sys_mbox_post".
1284 2008-01-12 Frédéric Bernon
1285 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1286 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1287 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1289 2008-01-10 Frédéric Bernon
1290 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1291 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1292 "blocking" ("block" parameter = 1).
1294 2008-01-10 Frédéric Bernon
1295 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1296 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1297 "Add return value to sys_mbox_post".
1299 2008-01-05 Frédéric Bernon
1300 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1301 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1302 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1303 indicate the number of pointers query by the mailbox. There is three defines
1304 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1305 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1306 parameter in your implementation, but to ignore it to keep the previous behavior.
1307 The new sys_mbox_trypost function return a value to know if the mailbox is
1308 full or if the message is posted. Take a look to sys_arch.txt for more details.
1309 This new function is used in tcpip_input (so, can be called in an interrupt
1310 context since the function is not blocking), and in recv_udp and recv_raw.
1312 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1313 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1314 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1315 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1316 documentation in the rawapi.txt file.
1318 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1319 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1321 2007-12-31 Frédéric Bernon, Luca Ceresoli
1322 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1323 in autoip". The change in etharp_raw could be removed, since all calls to
1324 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1325 wrong in the future.
1327 2007-12-30 Frédéric Bernon, Tom Evans
1328 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1329 Filtering" reported by Tom Evans.
1331 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1332 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1333 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1334 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1335 keep accepting new connections.
1337 2007-12-13 Frédéric Bernon
1338 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1339 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1341 2007-12-12 Frédéric Bernon
1342 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1343 are the one which have ram usage.
1345 2007-12-05 Frédéric Bernon
1346 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1347 set of variables (=0) or a local one (=1). In this last case, your port should
1348 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1349 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1351 2007-12-03 Simon Goldschmidt
1352 * ip.c: ip_input: check if a packet is for inp first before checking all other
1353 netifs on netif_list (speeds up packet receiving in most cases)
1355 2007-11-30 Simon Goldschmidt
1356 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1357 UDP: move a (connected) pcb selected for input to the front of the list of
1358 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1361 2007-11-28 Simon Goldschmidt
1362 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1364 2007-11-25 Simon Goldschmidt
1365 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1368 2007-11-24 Simon Goldschmidt
1369 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1370 to the new file netdb.c; included lwip_getaddrinfo.
1372 2007-11-21 Simon Goldschmidt
1373 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1374 based on the MTU of the netif used to send. Enabled by default. Disable by
1375 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1377 2007-11-19 Frédéric Bernon
1378 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1379 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1380 copy dns payload to parse the response), return an error if there is no place
1381 for a new query, and fix some minor problems.
1383 2007-11-16 Simon Goldschmidt
1384 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1385 removed files: core/inet.c, core/inet6.c
1386 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1387 inet and chksum part; changed includes in all lwIP files as appropriate
1389 2007-11-16 Simon Goldschmidt
1390 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1391 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1392 (gethostbyname/gethostbyname_r).
1394 2007-11-15 Jim Pettinato, Frédéric Bernon
1395 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1396 requests with RAW api interface. Initialization is done in lwip_init() with
1397 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1398 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1399 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1400 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1401 list with points to improve.
1403 2007-11-06 Simon Goldschmidt
1404 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1405 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1406 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1408 2007-11-06 Simon Goldschmidt
1409 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1410 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1411 implementation from netconn api applications.
1413 2007-11-03 Frédéric Bernon
1414 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1415 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1416 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1417 it. This is a first release which have to be improve for TCP. Note it used the
1418 netconn::recv_avail which need to be more "thread-safe" (note there is already
1419 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1421 2007-11-01 Frédéric Bernon, Marc Chaland
1422 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1423 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1424 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1425 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1426 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1428 2007-10-24 Frédéric Bernon
1429 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1430 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1431 some code (like we have talk in "patch #5919 : Create compile switch to remove
1432 select code"), but it could be done later.
1434 2007-10-08 Simon Goldschmidt
1435 * many files: Changed initialization: many init functions are not needed any
1436 more since we now rely on the compiler initializing global and static
1439 2007-10-06 Simon Goldschmidt
1440 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1441 to enqueue the received pbufs so that multiple packets can be reassembled
1442 simultaneously and no static reassembly buffer is needed.
1444 2007-10-05 Simon Goldschmidt
1445 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1446 all netifs (or ports) can use it.
1448 2007-10-05 Frédéric Bernon
1449 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1450 common function to reduce a little bit the footprint (for all functions using
1451 only the "netif" parameter).
1453 2007-10-03 Frédéric Bernon
1454 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1455 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1456 a little bit the footprint (for all functions using only the "netif" parameter).
1458 2007-09-15 Frédéric Bernon
1459 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1460 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1461 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1462 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1464 2007-09-10 Frédéric Bernon
1465 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1466 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1467 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1468 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1469 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1470 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1471 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1472 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1473 when it's queried (any direct call to "sysuptime" is changed by a call to
1474 snmp_get_sysuptime).
1476 2007-09-09 Frédéric Bernon, Bill Florac
1477 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1478 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1479 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1480 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1481 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1482 the next query message to receive the matching multicast streams).
1484 2007-09-08 Frédéric Bernon
1485 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1486 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1487 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1488 Enable to access to these fields with LWIP_TCP=0.
1490 2007-09-05 Frédéric Bernon
1491 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1492 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1493 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1494 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1495 help to reduce footprint, and to reduce "visibility" on the Internet.
1497 2007-09-05 Frédéric Bernon, Bill Florac
1498 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1499 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1500 parameters have to be provided: a task name, and a task stack size. For this
1501 one, since it's platform dependant, you could define the best one for you in
1502 your lwipopts.h. For port maintainers, you can just add these new parameters
1503 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1506 2007-09-05 Frédéric Bernon
1507 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1508 inside init.c for task #7142 "Sanity check user-configurable values".
1510 2007-09-04 Frédéric Bernon, Bill Florac
1511 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1512 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1513 value). It will avoid potential fragmentation problems, use a counter to know
1514 how many times a group is used on an netif, and free it when all applications
1515 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1516 check if LWIP_IGMP!=0).
1518 2007-09-03 Frédéric Bernon
1519 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1520 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1521 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1522 and/or the "interface" field (for netconn layer), for join/leave operations.
1523 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1524 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1526 2007-08-30 Frédéric Bernon
1527 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1528 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1529 with other API (application based on raw API, or future "socket2" API). Ports
1530 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1532 2007-08-30 Frédéric Bernon, Jonathan Larmour
1533 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1534 user-configurable values".
1536 2007-08-29 Frédéric Bernon
1537 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1538 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1539 spirit than the others modules. Modify some IGMP debug traces.
1541 2007-08-29 Frédéric Bernon
1542 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1543 Add lwip_init function to regroup all modules initializations, and to provide
1544 a place to add code for task #7142 "Sanity check user-configurable values".
1545 Ports maintainers should remove direct initializations calls from their code,
1546 and add init.c in their makefiles. Note that lwip_init() function is called
1547 inside tcpip_init, but can also be used by raw api users since all calls are
1548 disabled when matching options are disabled. Also note that their is new options
1549 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1551 2007-08-26 Marc Boucher
1552 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1553 since they can under certain circumstances be called with an invalid conn
1554 pointer after the connection has been closed (and conn has been freed).
1556 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1557 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1558 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1560 2007-08-22 Frédéric Bernon
1561 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1562 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1564 2007-08-22 Frédéric Bernon
1565 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1566 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1567 name is tcpip_input (we keep the name of 1.2.0 function).
1569 2007-08-17 Jared Grubb
1570 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1571 settings into new memp_std.h and optional user file lwippools.h. This adds
1572 more dynamic mempools, and allows the user to create an arbitrary number of
1573 mempools for mem_malloc.
1575 2007-08-16 Marc Boucher
1576 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1577 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1578 close the connection.
1580 2007-08-16 Marc Boucher
1581 * sockets.c: lwip_accept(): check netconn_peer() error return.
1583 2007-08-16 Marc Boucher
1584 * mem.c, mem.h: Added mem_calloc().
1586 2007-08-16 Marc Boucher
1587 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1588 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1589 and starving other message types.
1590 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1592 2007-08-16 Marc Boucher
1593 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1594 type and flgs (later renamed to flags).
1595 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1596 Improved lwip_recvfrom(). TCP push now propagated.
1598 2007-08-16 Marc Boucher
1599 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1602 2007-08-16 Marc Boucher
1603 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1604 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1605 Added PPPoE support and various PPP improvements.
1607 2007-07-25 Simon Goldschmidt
1608 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1609 making netbuf_copy_partial use this function.
1611 2007-07-25 Simon Goldschmidt
1612 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1613 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1616 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1617 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1618 a link callback in the netif struct, and functions to handle it. Be carefull
1619 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1620 if you want to be sure to be compatible with future changes...
1622 2007-06-30 Frédéric Bernon
1623 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1625 2007-06-21 Simon Goldschmidt
1626 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1627 LWIP_AUTOIP =0 and =1 to remove redundant code.
1629 2007-06-21 Simon Goldschmidt
1630 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1631 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1632 heap. This both prevents memory fragmentation and gives a higher speed
1633 at the cost of more memory consumption. Turned off by default.
1635 2007-06-21 Simon Goldschmidt
1636 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1637 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1638 int to be able to send a bigger buffer than 64K with one time (mainly
1639 used from lwip_send).
1641 2007-06-21 Simon Goldschmidt
1642 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1643 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1645 2007-06-21 Simon Goldschmidt
1646 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1647 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1648 changes on low memory or empty send-buffer.
1650 2007-06-18 Simon Goldschmidt
1651 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1652 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1653 used for ethernet and struct eth_addr already had a defined length of 6).
1655 2007-06-17 Simon Goldschmidt
1656 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1657 to disable UDP checksum generation on transmit.
1659 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1660 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1661 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1662 this macro to check "conn" parameter in api_msg.c functions.
1664 2007-06-11 Simon Goldschmidt
1665 * sockets.c, sockets.h: Added UDP lite support for sockets
1667 2007-06-10 Simon Goldschmidt
1668 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1669 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1672 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1673 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1674 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1675 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1676 (see TODO mark in the source code).
1678 2007-06-09 Simon Goldschmidt
1679 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1680 etharp_output() to match netif->output so etharp_output() can be used
1681 directly as netif->output to save one function call.
1683 2007-06-08 Simon Goldschmidt
1684 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1685 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1686 added initialization of those to ethernetif, slipif and loopif.
1688 2007-05-18 Simon Goldschmidt
1689 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1690 (defaulting to off for now) that can be set to 0 to send fragmented
1691 packets by passing PBUF_REFs down the stack.
1693 2007-05-23 Frédéric Bernon
1694 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1695 connections, such present in patch #5959.
1697 2007-05-23 Frédéric Bernon
1698 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1699 code in only one part...
1701 2007-05-18 Simon Goldschmidt
1702 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1703 elements to overflow. This is achieved by adding some bytes before and after
1704 each pool element (increasing their size, of course), filling them with a
1705 prominent value and checking them on freeing the element.
1706 Set it to 2 to also check every element in every pool each time memp_malloc()
1707 or memp_free() is called (slower but more helpful).
1709 2007-05-10 Simon Goldschmidt
1710 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1711 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1714 2007-05-11 Frédéric Bernon
1715 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1716 Include a function pointer instead of a table index in the message to reduce
1717 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1718 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1720 2007-05-10 Simon Goldschmidt
1721 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1722 \ extern "C" {' in all header files. Now you can write your application using
1723 the lwIP stack in C++ and simply #include the core files. Note I have left
1724 out the netif/ppp/*h header files for now, since I don't know which files are
1725 included by applications and which are for internal use only.
1727 2007-05-09 Simon Goldschmidt
1728 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1729 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1730 situations where some compilers might inline the copy and save a function
1731 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1733 2007-05-08 Simon Goldschmidt
1734 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1735 to be overriden in case the C-library malloc implementation is not protected
1736 against concurrent access.
1738 2007-05-04 Simon Goldschmidt (Atte Kojo)
1739 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1740 multiple packets to the same host.
1742 2007-05-04 Frédéric Bernon, Jonathan Larmour
1743 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1744 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1745 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1746 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1747 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1748 these fields are now renamed "addr" & "port".
1750 2007-04-11 Jonathan Larmour
1751 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1752 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1753 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1754 by the port in sys_arch.h if desired.
1756 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1757 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1758 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1759 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1761 2007-04-05 Frédéric Bernon
1762 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1764 2007-04-04 Simon Goldschmidt
1765 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1766 use this for and architecture-independent form to tell the compiler you intentionally
1767 are not using this variable. Can be overriden in cc.h.
1769 2007-03-28 Frédéric Bernon
1770 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1771 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1772 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1773 It will be used by DHCP to register a client hostname, but can also be use when you call
1776 2007-03-28 Frédéric Bernon
1777 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1778 initialize a network interface's flag with. It tell this interface is an ethernet
1779 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1780 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1782 2007-03-26 Frédéric Bernon, Jonathan Larmour
1783 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1784 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1785 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1786 is done in tcpip_init function.
1788 2007-03-22 Frédéric Bernon
1789 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1790 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1791 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1792 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1793 but never used. Fix msg_in.c with the correct #if test for a stat display.
1795 2007-03-21 Kieran Mansley
1796 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1797 Provides callback on netif up/down state change.
1799 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1800 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1801 ip.c, netif.h, tcpip.c, opt.h:
1802 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1803 filter per all network interfaces. Declare a new function in netif to enable to
1804 control the MAC filter (to reduce lwIP traffic processing).
1806 2007-03-11 Frédéric Bernon
1807 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1808 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1809 unless you know what you're doing (default are RFC1122 compliant). Note
1810 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1812 2007-03-08 Frédéric Bernon
1813 * tcp.h: Keepalive values can be configured at compile time, but don't change
1814 this unless you know what you're doing (default are RFC1122 compliant).
1816 2007-03-08 Frédéric Bernon
1817 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1818 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1819 on UDP sockets/netconn.
1821 2007-03-08 Simon Goldschmidt
1822 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1824 2007-03-06 Frédéric Bernon
1825 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1826 Implement SO_RCVTIMEO on UDP sockets/netconn.
1828 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1829 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1830 on the stack and remove the API msg type from memp
1832 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1833 * sockets.h, sockets.c: Move socket initialization to new
1834 lwip_socket_init() function.
1835 NOTE: this changes the API with ports. Ports will have to be
1836 updated to call lwip_socket_init() now.
1838 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1839 * api_lib.c: Use memcpy in netbuf_copy_partial.
1844 2008-03-17 Frédéric Bernon, Ed Kerekes
1845 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1846 some problems to fill the IP header on some targets, use now the
1847 ip.h macros to do it).
1849 2008-03-13 Frédéric Bernon
1850 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1851 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1852 TCP connection caused a crash. Note that using (lwip_)recvfrom
1853 like this is a bit slow and that using (lwip)getpeername is the
1854 good lwip way to do it (so, using recv is faster on tcp sockets).
1856 2008-03-12 Frédéric Bernon, Jonathan Larmour
1857 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1858 recv_raw() does not consume data", and the ping sample (with
1859 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1860 returned the IP payload, without the IP header).
1862 2008-03-04 Jonathan Larmour
1863 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1864 and/or warnings on some systems where mem_size_t and size_t differ.
1865 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1867 2008-03-04 Kieran Mansley (contributions by others)
1868 * Numerous small compiler error/warning fixes from contributions to
1869 mailing list after 1.3.0 release candidate made.
1871 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1872 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1874 2008-01-15 Kieran Mansley
1875 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1876 prevented from sending by a small send window, not just a zero
1879 2008-01-09 Jonathan Larmour
1880 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1881 conflict with Linux system headers.
1883 2008-01-06 Jonathan Larmour
1884 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1885 address entirely on receiving a DHCPNAK, and restarting discovery.
1887 2007-12-21 Simon Goldschmidt
1888 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1889 is not protected" by using new macros for interlocked access to modify/test
1890 netconn->recv_avail.
1892 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1893 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1895 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1896 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1897 of silly window avoidance and prevent lwIP from shrinking the window)
1899 2007-12-04 Simon Goldschmidt
1900 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1901 data packet was lost): add assert that all segment lists are empty in
1902 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1903 state from LAST_ACK in tcp_process
1905 2007-12-02 Simon Goldschmidt
1906 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1907 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1908 has to be set to 0 in lwipopts.h
1910 2007-12-02 Simon Goldschmidt
1911 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1912 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1913 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1914 This is a fix for thread-safety and allocates all items needed for a netconn
1915 when the netconn is created.
1917 2007-11-30 Simon Goldschmidt
1918 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1919 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1920 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1921 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1923 2007-11-27 Simon Goldschmidt
1924 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1925 letting ip_route only use netifs that are up.
1927 2007-11-27 Simon Goldschmidt
1928 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1929 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1930 sockets block most operations once they have seen a fatal error.
1932 2007-11-27 Simon Goldschmidt
1933 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1934 netif to send as an argument (to be able to send on netifs that are down).
1936 2007-11-26 Simon Goldschmidt
1937 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1940 2007-11-21 Simon Goldschmidt
1941 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1942 Fixed the nagle algorithm; nagle now also works for all raw API applications
1943 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1945 2007-11-12 Frédéric Bernon
1946 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1947 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1948 context in do_getaddr.
1950 2007-11-10 Simon Goldschmidt
1951 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1952 happen any time). Now the packet simply isn't enqueued when out of memory.
1954 2007-11-01 Simon Goldschmidt
1955 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1956 TCP_MSS if that is smaller) as long as no MSS option is received from the
1959 2007-11-01 Simon Goldschmidt
1960 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1961 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1962 sending our configured TCP_MSS instead of the one received).
1964 2007-11-01 Simon Goldschmidt
1965 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1966 calculated based on the configured TCP_MSS, not on the MSS option received
1969 2007-10-09 Simon Goldschmidt
1970 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
1971 short and also was generated wrong if checksum coverage != tot_len;
1972 receive: checksum was calculated wrong if checksum coverage != tot_len
1974 2007-10-08 Simon Goldschmidt
1975 * mem.c: lfree was not updated in mem_realloc!
1977 2007-10-07 Frédéric Bernon
1978 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
1979 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
1980 this change cause an API breakage for netconn_addr, since a parameter
1981 type change. Any compiler should cause an error without any changes in
1982 yours netconn_peer calls (so, it can't be a "silent change"). It also
1983 reduce a little bit the footprint for socket layer (lwip_getpeername &
1984 lwip_getsockname use now a common lwip_getaddrname function since
1985 netconn_peer & netconn_addr have the same parameters).
1987 2007-09-20 Simon Goldschmidt
1988 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
1989 by checking tcp_tw_pcbs also
1991 2007-09-19 Simon Goldschmidt
1992 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
1994 2007-09-15 Mike Kleshov
1995 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
1997 2007-09-06 Frédéric Bernon
1998 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
1999 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2000 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2001 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2003 2007-08-30 Frédéric Bernon
2004 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2005 and fix some coding style.
2007 2007-08-28 Frédéric Bernon
2008 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2009 kind of packets. These packets are considered like Ethernet packets (payload
2010 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2011 are considered like IP packets (payload pointing to iphdr).
2013 2007-08-27 Frédéric Bernon
2014 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2015 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2016 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2018 2007-08-24 Kieran Mansley
2019 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2020 compiler (Paradigm C++)
2022 2007-08-09 Frédéric Bernon, Bill Florac
2023 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2024 Introduce IGMP_STATS to centralize statistics management.
2026 2007-08-09 Frédéric Bernon, Bill Florac
2027 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2028 packet on a udp pcb binded on an netif's IP address, and not on "any".
2030 2007-08-09 Frédéric Bernon, Bill Florac
2031 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2032 This is mainly on using lookup/lookfor, and some coding styles...
2034 2007-07-26 Frédéric Bernon (and "thedoctor")
2035 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2037 2007-07-25 Simon Goldschmidt
2038 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2039 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2040 (tcp_output is called again later from tcp timers).
2042 2007-07-25 Simon Goldschmidt
2043 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2044 copy_from_pbuf, which illegally modified the given pbuf.
2046 2007-07-25 Simon Goldschmidt
2047 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2048 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2050 2007-07-24 Simon Goldschmidt
2051 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2052 correct state (must be CLOSED).
2054 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2055 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2056 allocation. It now returns NULL.
2058 2007-07-13 Frédéric Bernon
2059 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2062 2007-07-13 Frédéric Bernon
2063 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2064 because current code doesn't follow rawapi.txt documentation.
2066 2007-07-13 Kieran Mansley
2067 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2068 out of sequence processing of received packets
2070 2007-07-03 Simon Goldschmidt
2071 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2072 assumption is made that this pbuf is in one piece (i.e. not chained). These
2073 assumptions clash with the possibility of converting to fully pool-based
2074 pbuf implementations, where PBUF_RAM pbufs might be chained.
2076 2007-07-03 Simon Goldschmidt
2077 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2078 when closing tcp netconns: removed conn->sem, less context switches when
2079 closing, both netconn_close and netconn_delete should safely close tcp
2082 2007-07-02 Simon Goldschmidt
2083 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2084 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2085 to cache ARP table indices with each pcb instead of single-entry cache for
2088 2007-07-02 Simon Goldschmidt
2089 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2090 warnings when assigning to smaller types.
2092 2007-06-28 Simon Goldschmidt
2093 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2095 2007-06-28 Simon Goldschmidt
2096 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2097 a segment contained chained pbufs)
2099 2007-06-28 Frédéric Bernon
2100 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2101 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2102 possible to define this macro in your own lwipopts.h to always use C library's
2103 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2105 2007-06-28 Frédéric Bernon
2106 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2107 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2108 in api_lib/api_msg (use pointers and not type with table, etc...)
2110 2007-06-26 Simon Goldschmidt
2111 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2113 2007-06-25 Simon Goldschmidt
2114 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2115 for udp packets with no matching pcb.
2117 2007-06-25 Simon Goldschmidt
2118 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2119 could get udp input packets if the remote side matched.
2121 2007-06-13 Simon Goldschmidt
2122 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2123 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2125 2007-06-13 Simon Goldschmidt
2126 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2127 -> netconn_new_..() does not allocate a new connection for unsupported
2130 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2131 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2132 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2134 2007-06-13 Frédéric Bernon, Matthias Weisser
2135 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2136 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2137 some macro names collision with some OS macros.
2139 2007-06-11 Simon Goldschmidt
2140 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2141 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2142 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2145 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2146 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2147 where TCP flags wasn't initialized in tcp_keepalive.
2149 2007-06-03 Simon Goldschmidt
2150 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2151 registered, p->payload was modified without modifying p->len if sending
2152 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2154 2007-06-03 Simon Goldschmidt
2155 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2156 re-used the input pbuf even if that didn't have enough space to include the
2157 link headers. Now the space is tested and a new pbuf is allocated for the
2158 echo response packet if the echo request pbuf isn't big enough.
2160 2007-06-01 Simon Goldschmidt
2161 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2163 2007-05-23 Frédéric Bernon
2164 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2165 allocated by do_listen if success) and netconn_accept errors handling. In
2166 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2167 by ASSERT, except for netconn_delete.
2169 2007-05-23 Frédéric Bernon
2170 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2171 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2172 directly close the recvmbox).
2174 2007-05-22 Simon Goldschmidt
2175 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2176 bound but unconnected (and non-listening) tcp_pcbs.
2178 2007-05-22 Frédéric Bernon
2179 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2180 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2181 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2182 like "sys_timeout" in their application threads.
2184 2007-05-22 Frédéric Bernon
2185 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2186 which parameters are used by which do_xxx function, and to avoid "misusing"
2187 parameters (patch #5938).
2189 2007-05-22 Simon Goldschmidt
2190 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2191 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2192 is only 8 bits wide. This affects the api, as there, the protocol was
2195 2007-05-18 Simon Goldschmidt
2196 * memp.c: addition to patch #5913: smaller pointer was returned but
2197 memp_memory was the same size -> did not save memory.
2199 2007-05-16 Simon Goldschmidt
2200 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2203 2007-05-16 Simon Goldschmidt
2204 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2205 as the one of the netif used for sending to prevent sending from old
2206 addresses after a netif address gets changed (partly fixes bug #3168).
2208 2007-05-16 Frédéric Bernon
2209 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2210 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2211 tcpip_init) because we have to be sure that network interfaces are already
2212 added (mac filter is updated only in igmp_init for the moment).
2214 2007-05-16 Simon Goldschmidt
2215 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2216 into sys_arch_sem_wait calls to prevent timers from running while waiting
2217 for the heap. This fixes bug #19167.
2219 2007-05-13 Simon Goldschmidt
2220 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2221 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2224 2007-05-07 Simon Goldschmidt
2225 * mem.c: Another attempt to fix bug #17922.
2227 2007-05-04 Simon Goldschmidt
2228 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2229 implementation so that it can be reused (don't allocate the target
2230 pbuf inside pbuf_copy()).
2232 2007-05-04 Simon Goldschmidt
2233 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2234 to save a little RAM (next pointer of memp is not used while not in pool).
2237 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2240 2007-04-23 Simon Goldschmidt
2241 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2242 in NULL reference for incoming TCP packets". Loopif has to be configured
2243 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2244 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2245 putting packets on a list that is fed to the stack by calling loopif_poll()
2246 (single-thread / NO_SYS / polling environment where e.g.
2247 netif->input() = ip_input).
2249 2007-04-17 Jonathan Larmour
2250 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2251 the difference between two u16_t's.
2252 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2253 MEMP_NUM_NETCONN in sockets.c right now.
2255 2007-04-12 Jonathan Larmour
2256 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2258 2007-04-12 Kieran Mansley
2259 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2260 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2262 2007-04-11 Simon Goldschmidt
2263 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2264 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2265 pbuf.c: removed functions no needed any more (by etharp).
2267 2007-04-11 Kieran Mansley
2268 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2269 "Constant is long" warnings with 16bit compilers. Contributed by
2270 avatar@mmlab.cse.yzu.edu.tw
2272 2007-04-05 Frédéric Bernon, Jonathan Larmour
2273 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2274 the mailbox is active". Now, the post is only done during a connect, and do_send,
2275 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2277 2007-04-03 Frédéric Bernon
2278 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2279 packets. See patch #5834.
2281 2007-03-30 Frédéric Bernon
2282 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2283 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2285 2007-03-30 Frédéric Bernon
2286 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2287 others environment defines (these were too "generic").
2289 2007-03-28 Frédéric Bernon
2290 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2291 result and can cause a crash. lwip_send now check netbuf_ref result.
2293 2007-03-28 Simon Goldschmidt
2294 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2295 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2296 defined. This is the way it should have been already (looking at
2299 2007-03-28 Kieran Mansley
2300 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2301 IP and TCP headers *and* physical link headers
2303 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2304 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2305 to send some garbage. It is not a definitive solution, but the patch does solve
2306 the problem for most cases.
2308 2007-03-22 Frédéric Bernon
2309 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2311 2007-03-22 Frédéric Bernon
2312 * api_lib.c: somes resources couldn't be freed if there was errors during
2313 netconn_new_with_proto_and_callback.
2315 2007-03-22 Frédéric Bernon
2316 * ethernetif.c: update netif->input calls to check return value. In older ports,
2317 it's a good idea to upgrade them, even if before, there could be another problem
2318 (access to an uninitialized mailbox).
2320 2007-03-21 Simon Goldschmidt
2321 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2322 by casting to unsigned).
2324 2007-03-21 Frédéric Bernon
2325 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2326 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2327 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2328 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2329 faster and more reliable communication between api_lib and tcpip.
2331 2007-03-21 Frédéric Bernon
2332 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2334 2007-03-21 Frédéric Bernon
2335 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2337 2007-03-21 Kieran Mansley
2338 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2341 2007-03-21 Kieran Mansley
2342 * Fix all uses of pbuf_header to check the return value. In some
2343 cases just assert if it fails as I'm not sure how to fix them, but
2344 this is no worse than before when they would carry on regardless
2347 2007-03-21 Kieran Mansley
2348 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2349 comment out missing header include in icmp.c
2351 2007-03-20 Frédéric Bernon
2352 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2353 synchronized with memp.h.
2355 2007-03-20 Frédéric Bernon
2356 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2357 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2358 network interfaces. Also fix a compiler warning.
2360 2007-03-20 Kieran Mansley
2361 * udp.c: Only try and use pbuf_header() to make space for headers if
2362 not a ROM or REF pbuf.
2364 2007-03-19 Frédéric Bernon
2365 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2368 2007-03-19 Frédéric Bernon
2369 * Remove unimplemented "memp_realloc" function from memp.h.
2371 2007-03-11 Simon Goldschmidt
2372 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2375 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2376 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2377 (missing `const' qualifier in socket functions), to get more compatible to
2378 standard POSIX sockets.
2380 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2381 * sockets.c: Add asserts inside bind, connect and sendto to check input
2382 parameters. Remove excessive set_errno() calls after get_socket(), because
2383 errno is set inside of get_socket(). Move last sock_set_errno() inside
2386 2007-03-09 Simon Goldschmidt
2387 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2388 was allocated too small.
2390 2007-03-06 Simon Goldschmidt
2391 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2392 the stack from concurrent access.
2394 2007-03-06 Frédéric Bernon, Dmitry Potapov
2395 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2396 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2398 2007-03-06 Simon Goldschmidt
2399 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2400 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2402 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2403 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2404 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2405 Allow to do ARP processing for incoming packets inside tcpip_thread
2406 (protecting ARP layer against concurrent access). You can also disable
2407 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2408 Older ports have to use tcpip_ethinput.
2410 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2411 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2412 from pointer target type"
2414 2007-03-05 Frédéric Bernon
2415 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2416 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2418 2007-03-04 Frédéric Bernon
2419 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2422 2007-03-04 Frédéric Bernon
2423 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2425 The api_msg struct stay on the stack (not moved to netconn struct).
2427 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2428 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2429 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2430 Also fixed cast warning in pbuf_alloc()
2432 2007-03-04 Simon Goldschmidt
2433 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2434 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2436 2007-03-03 Frédéric Bernon
2437 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2438 It is static, and never used in udp.c except udp_init().
2440 2007-03-02 Simon Goldschmidt
2441 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2442 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2443 initialized before tcpip_thread is running (e.g. before OS is started)
2445 2007-03-02 Frédéric Bernon
2446 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2449 2007-02-28 Kieran Mansley
2450 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2451 outside the region of the pbuf by pbuf_header()
2453 2007-02-28 Kieran Mansley
2454 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2455 when supplied timeout is also non-zero
2459 2006-12-05 Leon Woestenberg
2460 * CHANGELOG: Mention STABLE-1.2.0 release.
2464 2006-12-01 Christiaan Simons
2465 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2466 Note this is a workaround. Currently I have no other options left.
2468 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2469 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2470 to include/lwip/opt.h.
2471 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2472 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2473 * opt.h: Add above new options.
2475 2006-08-18 Christiaan Simons
2476 * tcp_{in,out}.c: added SNMP counters.
2477 * ipv4/ip.c: added SNMP counters.
2478 * ipv4/ip_frag.c: added SNMP counters.
2480 2006-08-08 Christiaan Simons
2481 * etharp.{c,h}: added etharp_find_addr() to read
2482 (stable) ethernet/IP address pair from ARP table
2484 2006-07-14 Christiaan Simons
2485 * mib_structs.c: added
2486 * include/lwip/snmp_structs.h: added
2487 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2489 2006-07-06 Christiaan Simons
2490 * snmp/asn1_{enc,dec}.c added
2492 * snmp/msg_{in,out}.c added
2493 * include/lwip/snmp_asn1.h added
2494 * include/lwip/snmp_msg.h added
2495 * doc/snmp_agent.txt added
2497 2006-03-29 Christiaan Simons
2498 * inet.c, inet.h: Added platform byteswap support.
2499 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2500 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2504 2006-11-30 Christiaan Simons
2505 * dhcp.c: Fixed false triggers of request_timeout.
2507 2006-11-28 Christiaan Simons
2508 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2510 2006-10-11 Christiaan Simons
2511 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2512 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2513 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2514 identifier from 170 to 136 (bug #17574).
2516 2006-10-10 Christiaan Simons
2517 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2519 2006-08-17 Christiaan Simons
2520 * udp.c: Fixed bug #17200, added check for broadcast
2521 destinations for PCBs bound to a unicast address.
2523 2006-08-07 Christiaan Simons
2524 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2526 2006-06-27 Christiaan Simons
2527 * api_msg.c: Applied patch for cold case (bug #11135).
2528 In accept_function() ensure newconn->callback is always initialized.
2530 2006-06-15 Christiaan Simons
2531 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2532 facilitate printing of mem_size_t and u16_t statistics.
2534 2006-06-14 Christiaan Simons
2535 * api_msg.c: Applied patch #5146 to handle allocation failures
2536 in accept() by Kevin Lawson.
2538 2006-05-26 Christiaan Simons
2539 * api_lib.c: Removed conn->sem creation and destruction
2540 from netconn_write() and added sys_sem_new to netconn_new_*.
2544 2006-03-03 Christiaan Simons
2545 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2546 access and added pbuf_alloc() return value checks.
2548 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2549 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2550 now handled by the checksum routine properly.
2552 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2553 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2554 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2556 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2557 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2558 submitted by Mitrani Hiroshi.
2560 2005-12-15 Christiaan Simons
2561 * inet.c: Disabled the added summing routine to preserve code space.
2563 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2564 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2565 Added Curt McDowell's optimized checksumming routine for future
2566 inclusion. Need to create test case for unaliged, aligned, odd,
2567 even length combination of cases on various endianess machines.
2569 2005-12-09 Christiaan Simons
2570 * inet.c: Rewrote standard checksum routine in proper portable C.
2572 2005-11-25 Christiaan Simons
2573 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2574 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2575 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2577 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2578 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2579 routine by Peter Jolasson.
2580 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2582 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2583 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2584 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2586 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2587 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2589 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2590 * udp.c: UDP pcb->recv() was called even when it was NULL.
2594 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2595 * etharp.*: Disabled multiple packets on the ARP queue.
2596 This clashes with TCP queueing.
2598 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2599 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2600 Halved the ARP period, doubled the period counts.
2601 ETHARP_MAX_PENDING now should be at least 2. This prevents
2602 the counter from reaching 0 right away (which would allow
2603 too little time for ARP responses to be received).
2605 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2606 * dhcp.c: Decline messages were not multicast but unicast.
2607 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2608 Do not try hard to insert arbitrary packet's source address,
2609 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2610 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2611 querying an address will see it appear in the cache (DHCP could
2612 suffer from this when a server invalidly gave an in-use address.)
2613 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2614 comparing network addresses (identifiers), not the network masks
2616 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2617 IP address actually belongs to the network of the given interface.
2619 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2620 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2624 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2625 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2626 even if one is already pending, if the rcv_wnd is above a threshold
2627 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2628 delayed ACK in order to open the window if the stack is only receiving data.
2630 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2631 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2633 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2634 * etharp.c: Make sure the first pbuf queued on an ARP entry
2635 is properly ref counted.
2637 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2638 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2639 warnings about comparison.
2640 * pbuf.c: Stopped compiler complaining of empty if statement
2641 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2642 * tcp.c: Stopped compiler complaining of empty if statement
2643 when LWIP_DEBUGF() empty.
2644 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2645 * inet.c: Added a couple of casts to quiet the compiler.
2646 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2648 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2649 * inet.c: Made data types consistent in inet_ntoa().
2650 Added casts for return values of checksum routines, to pacify compiler.
2651 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2652 Small corrections to some debugging statements, to pacify compiler.
2654 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2655 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2656 * ethernetif.c Updated low_level_output() to match prototype for
2657 netif->linkoutput and changed low_level_input() similarly for consistency.
2658 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2659 of raw_recv() in raw.h and so avoid compiler error.
2660 * sockets.c: Added trivial (int) cast to keep compiler happier.
2661 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2667 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2668 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2669 your cc.h file defines this either 1 or 0. If non-defined,
2671 * .c: Added <string.h> and <errno.h> includes where used.
2672 * etharp.c: Made some array indices unsigned.
2674 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2675 * netif.*: Added netif_set_up()/down().
2676 * dhcp.c: Changes to restart program flow.
2678 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2679 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2680 single-pass lookup for different candidates. Should exploit locality.
2682 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2683 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2684 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2685 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2686 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2690 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2691 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2692 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2693 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2694 is to prefix the 14-bit Ethernet headers with two padding bytes.
2696 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2697 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2698 * etharp.c: Fixed the case where the packet that initiates the ARP request
2699 is not queued, and gets lost. Fixed the case where the packets destination
2700 address is already known; we now always queue the packet and perform an ARP
2707 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2708 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2709 * Fixed two possible NULL references in rare cases.
2715 * Fixed DHCP which did not include the IP address in DECLINE messages.
2719 * etharp.c has been hauled over a bit.
2725 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2726 * Packets sent from ARP queue had invalid source hardware address.
2730 * Pass-by ARP requests do now update the cache.
2734 * No longer dependent on ctype.h.
2735 * New socket options.
2736 * Raw IP pcb support.
2742 * Some debug formatters and casts fixed.
2743 * Numereous fixes in PPP.
2747 * DEBUGF now is LWIP_DEBUGF
2748 * pbuf_dechain() has been re-enabled.
2749 * Mentioned the changed use of CVS branches in README.
2755 * Fixed pool pbuf memory leak in pbuf_alloc().
2756 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2757 Reported by Savin Zlobec.
2759 * PBUF_POOL chains had their tot_len field not set for non-first
2760 pbufs. Fixed in pbuf_alloc().
2764 * Added PPP stack contributed by Marc Boucher
2768 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2770 * ARP queueuing now queues the latest packet instead of the first.
2771 This is the RFC recommended behaviour, but can be overridden in
2778 * TCP has been fixed to deal with the new use of the pbuf->ref
2781 * DHCP dhcp_inform() crash bug fixed.
2785 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2786 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2787 Implemented by David Haas.
2793 * The packet buffer implementation has been enhanced to support
2794 zero-copy and copy-on-demand for packet buffers which have their
2795 payloads in application-managed memory.
2796 Implemented by David Haas.
2798 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2799 if an outgoing packet can be directly sent on the link, or perform
2800 a copy-on-demand when necessary.
2802 The application can safely assume the packet is sent, and the RAM
2803 is available to the application directly after calling udp_send()
2804 or similar function.
2808 * ARP_QUEUEING should now correctly work for all cases, including
2810 Implemented by Leon Woestenberg.
2814 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2815 to a '0.0.0.0' IP address.
2817 * The packet buffer implementation is changed. The pbuf->ref counter
2818 meaning has changed, and several pbuf functions have been
2819 adapted accordingly.
2821 * netif drivers have to be changed to set the hardware address length field
2822 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2823 See the contrib/ports/c16x cs8900 driver as a driver example.
2825 * netif's have a dhcp field that must be initialized to NULL by the driver.
2826 See the contrib/ports/c16x cs8900 driver as a driver example.
2828 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2829 logged in CVS but have not been explained here.
2831 (0.5.3) Changes since version 0.5.2
2835 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2836 threads because it wasn't protected by semaphores.
2840 * struct ip_addr now packed.
2842 * The name of the time variable in arp.c has been changed to ctime
2843 to avoid conflicts with the time() function.
2845 (0.5.2) Changes since version 0.5.1
2849 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2853 * A bug in tcp_parseopt() could cause the stack to hang because of a
2854 malformed TCP option.
2856 * The address of new connections in the accept() function in the BSD
2857 socket library was not handled correctly.
2859 * pbuf_dechain() did not update the ->tot_len field of the tail.
2861 * Aborted TCP connections were not handled correctly in all
2866 * All protocol header structs are now packed.
2868 * The ->len field in the tcp_seg structure now counts the actual
2869 amount of data, and does not add one for SYN and FIN segments.
2871 (0.5.1) Changes since version 0.5.0
2875 * Possible to run as a user process under Linux.
2877 * Preliminary support for cross platform packed structs.
2879 * ARP timer now implemented.
2883 * TCP output queue length was badly initialized when opening
2886 * TCP delayed ACKs were not sent correctly.
2888 * Explicit initialization of BSS segment variables.
2890 * read() in BSD socket library could drop data.
2892 * Problems with memory alignment.
2894 * Situations when all TCP buffers were used could lead to
2897 * TCP MSS option wasn't parsed correctly.
2899 * Problems with UDP checksum calculation.
2901 * IP multicast address tests had endianess problems.
2903 * ARP requests had wrong destination hardware address.
2907 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2909 * A ->linkoutput() member was added to struct netif.
2911 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2913 * ntoh* macros are now null definitions for big endian CPUs.
2915 (0.5.0) Changes since version 0.4.2
2919 * Redesigned operating system emulation layer to make porting easier.
2921 * Better control over TCP output buffers.
2923 * Documenation added.
2927 * Locking issues in buffer management.
2929 * Bugfixes in the sequential API.
2931 * IP forwarding could cause memory leakage. This has been fixed.
2935 * Directory structure somewhat changed; the core/ tree has been
2938 (0.4.2) Changes since version 0.4.1
2942 * Experimental ARP implementation added.
2944 * Skeleton Ethernet driver added.
2946 * Experimental BSD socket API library added.
2950 * In very intense situations, memory leakage could occur. This has
2955 * Variables named "data" and "code" have been renamed in order to
2956 avoid name conflicts in certain compilers.
2958 * Variable++ have in appliciable cases been translated to ++variable
2959 since some compilers generate better code in the latter case.
2961 (0.4.1) Changes since version 0.4
2965 * TCP: Connection attempts time out earlier than data
2966 transmissions. Nagle algorithm implemented. Push flag set on the
2967 last segment in a burst.
2969 * UDP: experimental support for UDP-Lite extensions.
2973 * TCP: out of order segments were in some cases handled incorrectly,
2974 and this has now been fixed. Delayed acknowledgements was broken
2975 in 0.4, has now been fixed. Binding to an address that is in use
2976 now results in an error. Reset connections sometimes hung an
2977 application; this has been fixed.
2979 * Checksum calculation sometimes failed for chained pbufs with odd
2980 lengths. This has been fixed.
2982 * API: a lot of bug fixes in the API. The UDP API has been improved
2983 and tested. Error reporting and handling has been
2984 improved. Logical flaws and race conditions for incoming TCP
2985 connections has been found and removed.
2987 * Memory manager: alignment issues. Reallocating memory sometimes
2988 failed, this has been fixed.
2990 * Generic library: bcopy was flawed and has been fixed.
2994 * API: all datatypes has been changed from generic ones such as
2995 ints, to specified ones such as u16_t. Functions that return
2996 errors now have the correct type (err_t).
2998 * General: A lot of code cleaned up and debugging code removed. Many
2999 portability issues have been fixed.
3001 * The license was changed; the advertising clause was removed.
3005 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3006 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3009 (0.4) Changes since version 0.3.1
3011 * Memory management has been radically changed; instead of
3012 allocating memory from a shared heap, memory for objects that are
3013 rapidly allocated and deallocated is now kept in pools. Allocation
3014 and deallocation from those memory pools is very fast. The shared
3015 heap is still present but is used less frequently.
3017 * The memory, memory pool, and packet buffer subsystems now support
3018 4-, 2-, or 1-byte alignment.
3020 * "Out of memory" situations are handled in a more robust way.
3022 * Stack usage has been reduced.
3024 * Easier configuration of lwIP parameters such as memory usage,
3025 TTLs, statistics gathering, etc. All configuration parameters are
3026 now kept in a single header file "lwipopts.h".
3028 * The directory structure has been changed slightly so that all
3029 architecture specific files are kept under the src/arch
3032 * Error propagation has been improved, both in the protocol modules
3035 * The code for the RTXC architecture has been implemented, tested
3038 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3039 the Internet checksum modules.
3041 * Bugs related to porting between a 32-bit and a 16-bit architecture
3042 have been found and corrected.
3044 * The license has been changed slightly to conform more with the
3045 original BSD license, including the advertisement clause.
3047 (0.3.1) Changes since version 0.3
3049 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3050 RAM never returned the RAM when the pbuf was deallocated.
3052 * TCP congestion control, window updates and retransmissions did not
3053 work correctly. This has now been fixed.
3055 * Bugfixes in the API.
3057 (0.3) Changes since version 0.2
3059 * New and improved directory structure. All include files are now
3060 kept in a dedicated include/ directory.
3062 * The API now has proper error handling. A new function,
3063 netconn_err(), now returns an error code for the connection in
3066 * Improvements in the memory management subsystem. The system now
3067 keeps a pointer to the lowest free memory block. A new function,
3068 mem_malloc2() tries to allocate memory once, and if it fails tries
3069 to free some memory and retry the allocation.
3071 * Much testing has been done with limited memory
3072 configurations. lwIP now does a better job when overloaded.
3074 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3076 * Many bugfixes in the TCP code:
3078 - Fixed a bug in tcp_close().
3080 - The TCP receive window was incorrectly closed when out of
3081 sequence segments was received. This has been fixed.
3083 - Connections are now timed-out of the FIN-WAIT-2 state.
3085 - The initial congestion window could in some cases be too
3086 large. This has been fixed.
3088 - The retransmission queue could in some cases be screwed up. This
3091 - TCP RST flag now handled correctly.
3093 - Out of sequence data was in some cases never delivered to the
3094 application. This has been fixed.
3096 - Retransmitted segments now contain the correct acknowledgment
3097 number and advertised window.
3099 - TCP retransmission timeout backoffs are not correctly computed
3100 (ala BSD). After a number of retransmissions, TCP now gives up
3103 * TCP connections now are kept on three lists, one for active
3104 connections, one for listening connections, and one for
3105 connections that are in TIME-WAIT. This greatly speeds up the fast
3106 timeout processing for sending delayed ACKs.
3108 * TCP now provides proper feedback to the application when a
3109 connection has been successfully set up.
3111 * More comments have been added to the code. The code has also been
3112 somewhat cleaned up.
3114 (0.2) Initial public release.