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 2011-08-24: Simon Goldschmidt
45 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
47 2011-08-24: Simon Goldschmidt
48 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
50 2011-08-24: Simon Goldschmidt
51 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
53 2011-08-22: Simon Goldschmidt
54 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
55 merely prevents nagle from not transmitting fast after closing.)
57 2011-07-22: Simon Goldschmidt
58 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
59 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
60 lwip_send() sends as much as possible for non-blocking sockets
62 2011-07-22: Simon Goldschmidt
63 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
64 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
65 at regular intervals from main level.
67 2011-07-21: Simon Goldschmidt
68 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
69 sending an ARP request when an ARP entry is used in the last minute before
72 2011-07-04: Simon Goldschmidt
73 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
75 2011-06-26: Simon Goldschmidt
76 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
77 updating its documentation only.
79 2011-06-26: Simon Goldschmidt
80 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
83 2011-06-26: Simon Goldschmidt
84 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
92 2011-03-27: Simon Goldschmidt
93 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
94 calculate it in tcp_zero_window_probe (the only place where it was used).
96 2010-11-21: Simon Goldschmidt
97 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
100 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
101 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
102 IP_MULTICAST_LOOP at socket- and raw-API level.
104 2010-06-16: Simon Goldschmidt
105 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
106 link-layer-addressed UDP traffic to be received while a netif is down (just
107 like DHCP during configuration)
109 2010-05-22: Simon Goldschmidt
110 * many many files: bug #27352: removed packing from ip_addr_t, the packed
111 version is now only used in protocol headers. Added global storage for
112 current src/dest IP address while in input functions.
114 2010-05-16: Simon Goldschmidt
115 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
116 calculation (and use them throughout the stack where applicable)
118 2010-05-16: Simon Goldschmidt
119 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
120 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
122 2010-05-16: Simon Goldschmidt
123 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
124 MEMP pool instead of the heap
126 2010-05-13: Simon Goldschmidt
127 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
128 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
129 packets to more than one pcb.
131 2010-05-02: Simon Goldschmidt
132 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
133 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
135 2010-04-30: Simon Goldschmidt
136 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
137 take a precalculated checksum, added pbuf_fill_chksum() to copy data
138 into a pbuf and at the same time calculating the checksum for that data
140 2010-04-29: Simon Goldschmidt
141 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
142 2-byte-aligned IP addresses and MAC addresses
144 2010-04-28: Patch by Bill Auerbach
145 * ip.c: Inline generating IP checksum to save a function call
147 2010-04-14: Simon Goldschmidt
148 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
149 tcpip_thread processes messages or timeouts to implement a watchdog.
151 2010-03-28: Simon Goldschmidt
152 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
153 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
155 2010-03-27: Simon Goldschmidt
156 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
157 etharp_query to prevent unnecessary function calls (inspired by
160 2010-03-20: Simon Goldschmidt
161 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
162 since the linker cannot do this automatically to save space.
164 2010-03-20: Simon Goldschmidt
165 * opt.h, etharp.c/.h: Added support for static ARP table entries
167 2010-03-14: Simon Goldschmidt
168 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
169 when creating TCP segments, not when (re-)transmitting them.
171 2010-03-07: Simon Goldschmidt
172 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
173 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
174 This should speed up receiving data on sockets as the select code in
175 event_callback is only executed when select is waiting.
177 2010-03-06: Simon Goldschmidt
178 * tcp_out.c: task #7013 (Create option to have all packets delivered to
179 netif->output in one piece): Always copy to try to create single pbufs
182 2010-03-06: Simon Goldschmidt
183 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
184 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
185 for tcp netconns to receive pbufs, not netbufs; use that function
188 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
189 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
190 Work on tcp_enqueue: Don't waste memory when chaining segments,
191 added option TCP_OVERSIZE to prevent creating many small pbufs when
192 calling tcp_write with many small blocks of data. Instead, pbufs are
193 allocated larger than needed and the space is used for later calls to
196 2010-02-21: Simon Goldschmidt
197 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
200 2010-02-21: Simon Goldschmidt
201 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
202 implementation of tcp to make API usage cleare to application programmers
204 2010-02-14: Simon Goldschmidt/Stephane Lesage
205 * ip_addr.h: Improved some defines working on ip addresses, added faster
206 macro to copy addresses that cannot be NULL
208 2010-02-13: Simon Goldschmidt
209 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
210 blocking send operation)
212 2010-02-12: Simon Goldschmidt
213 * sockets.c/.h: Added a minimal version of posix fctl() to have a
214 standardised way to set O_NONBLOCK for nonblocking sockets.
216 2010-02-12: Simon Goldschmidt
217 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
218 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
219 and dhcp work with user-allocated structs instead of callin mem_malloc
221 2010-02-12: Simon Goldschmidt/Jeff Barber
222 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
223 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
225 2010-02-12: Simon Goldschmidt
226 * sys layer: task #10139 (Prefer statically allocated memory): converted
227 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
228 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
229 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
230 to let sys.h use binary semaphores instead of mutexes - as before)
232 2010-02-09: Simon Goldschmidt (Simon Kallweit)
233 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
234 (Restart system timeout handling)
236 2010-02-09: Simon Goldschmidt
237 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
238 netif.c) - loopif does not have to be created by the port any more,
239 just define LWIP_HAVE_LOOPIF to 1.
241 2010-02-08: Simon Goldschmidt
242 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
243 inet_ntoa_r/ipaddr_ntoa_r
245 2010-02-08: Simon Goldschmidt
246 * netif.h: Added netif_s/get_igmp_mac_filter() macros
248 2010-02-05: Simon Goldschmidt
249 * netif.h: Added function-like macros to get/set the hostname on a netif
251 2010-02-04: Simon Goldschmidt
252 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
253 make changing the actual implementation behind the typedef easier.
255 2010-02-01: Simon Goldschmidt
256 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
257 for allocating memory when getaddrinfo() is called.
259 2010-01-31: Simon Goldschmidt
260 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
261 them once instead of parsing for every option. This also removes
262 the need for mem_malloc from dhcp_recv and makes it possible to
263 correctly retrieve the BOOTP file.
265 2010-01-30: simon Goldschmidt
266 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
269 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
270 * api.h, api_msg.c, sockets.c: Added except set support in select
273 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
274 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
275 Add non-blocking support for connect (partly from patch #6860),
276 plus many cleanups in socket & netconn API.
278 2010-01-27: Simon Goldschmidt
279 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
280 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
282 2010-01-26: Simon Goldschmidt
283 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
285 2010-01-14: Simon Goldschmidt
286 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
287 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
289 2010-01-13: Simon Goldschmidt
290 * mem.c: The heap now may be moved to user-defined memory by defining
291 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
292 (patch #6966 and bug #26133)
294 2010-01-10: Simon Goldschmidt (Bill Auerbach)
295 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
298 2010-01-10: Simon Goldschmidt
299 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
300 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
302 2009-12-31: Simon Goldschmidt
303 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
304 added timers.c/.h: Separated timer implementation from semaphore/mbox
305 implementation, moved timer implementation to timers.c/.h, timers are
306 now only called from tcpip_thread or by explicitly checking them.
309 2009-12-27: Simon Goldschmidt
310 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
311 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
316 2011-04-20: Simon Goldschmidt
317 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
319 2011-04-13: Simon Goldschmidt
320 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
321 using ports in the IANA private/dynamic range (49152 through 65535).
323 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
324 * etharp.h/.c: Fixed broken VLAN support.
326 2011-03-27: Simon Goldschmidt
327 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
328 pcbs) by checking if the pcb was bound (local_port != 0).
330 2011-03-27: Simon Goldschmidt
331 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
333 2011-03-27: Simon Goldschmidt
334 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
335 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
337 2011-03-27: Simon Goldschmidt
338 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
339 is present never times out) by starting retransmission timer before checking
342 2011-03-22: Simon Goldschmidt
343 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
344 calling sio_read_abort() if the file descriptor is valid.
346 2011-03-14: Simon Goldschmidt
347 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
348 more than once can render a socket useless) since it mainly involves changing
349 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
351 2011-03-13: Simon Goldschmidt
352 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
353 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
354 use EALRADY instead of -1
356 2011-03-13: Simon Goldschmidt
357 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
358 connection has been aborted by err_tcp (since this is not a normal closing
361 2011-03-13: Simon Goldschmidt
362 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
363 with pcb->state != CLOSED
365 2011-02-17: Simon Goldschmidt
366 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
369 2011-02-17: Simon Goldschmidt
370 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
372 2011-01-24: Simon Goldschmidt
373 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
375 2010-12-02: Simon Goldschmidt
376 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
378 2010-11-23: Simon Goldschmidt
379 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
380 LWIP_SO_RCVBUF and ioctl/FIONREAD.
382 2010-11-23: Simon Goldschmidt
383 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
384 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
386 2010-11-23: Simon Goldschmidt
387 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
388 refusing 'refused_data' again.
390 2010-11-22: Simon Goldschmidt
391 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
392 after a successful nonblocking connection.
394 2010-11-22: Simon Goldschmidt
395 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
396 must be sent link-local
398 2010-11-22: Simon Goldschmidt
399 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
402 2010-11-20: Simon Goldschmidt
403 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
405 2010-11-20: Simon Goldschmidt
406 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
407 resemble other stacks.
409 2010-11-20: Simon Goldschmidt
410 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
411 no-copy TCP writes will never succeed.
413 2010-11-20: Simon Goldschmidt
414 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
415 not match documentation: return ERR_ARG instead of ERR_VAL if not
416 initialized or wrong argument.
418 2010-10-20: Simon Goldschmidt
419 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
421 2010-10-05: Simon Goldschmidt
422 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
423 replugging the network cable after an AutoIP address was assigned.
425 2010-08-10: Simon Goldschmidt
426 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
428 2010-08-03: Simon Goldschmidt
429 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
431 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
432 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
433 endian architectures)
435 2010-07-28: Simon Goldschmidt
436 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
439 2010-07-27: Simon Goldschmidt
440 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
441 harm but never did anything
443 2010-07-21: Simon Goldschmidt
444 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
447 2010-07-16: Kieran Mansley
448 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
450 2010-07-10: Simon Goldschmidt
451 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
453 2010-06-30: Simon Goldschmidt
454 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
457 2010-06-28: Kieran Mansley
458 * timers.c remove unportable printing of C function pointers
460 2010-06-24: Simon Goldschmidt
461 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
462 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
464 2010-06-24: Simon Goldschmidt
465 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
466 implemented shutdown at socket level.
468 2010-06-21: Simon Goldschmidt
469 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
470 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
471 custom pbufs that reference other (original) pbufs. Additionally set
472 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
474 2010-06-15: Simon Goldschmidt
475 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
477 2010-06-14: Simon Goldschmidt
478 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
480 2010-06-12: Simon Goldschmidt
481 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
484 2010-05-17: Simon Goldschmidt
485 * netdb.c: Correctly NULL-terminate h_addr_list
487 2010-05-16: Simon Goldschmidt
488 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
489 "symbol already defined" i.e. when linking to winsock
491 2010-05-05: Simon Goldschmidt
492 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
495 2010-04-21: Simon Goldschmidt
496 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
499 2010-03-28: Luca Ceresoli
500 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
502 2010-03-27: Luca Ceresoli
503 * mib2.c: patch #7130: remove meaningless const qualifiers
505 2010-03-26: Simon Goldschmidt
506 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
508 2010-03-26: Simon Goldschmidt
509 * various files: Fixed compiling with different options disabled (TCP/UDP),
510 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
512 2010-03-25: Simon Goldschmidt
513 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
515 2010-03-25: Simon Goldschmidt
516 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
517 overrunning our rcv_wnd in ooseq case.
519 2010-03-22: Simon Goldschmidt
520 * tcp.c: tcp_listen() did not copy the pcb's prio.
522 2010-03-19: Simon Goldschmidt
523 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
525 2010-03-14: Simon Goldschmidt
526 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
527 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
528 and basing PBUF_LINK_HLEN on it.
530 2010-03-08: Simon Goldschmidt
531 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
532 when assiging routable address): when checking incoming packets and
533 aborting existing connection on address change, filter out link-local
536 2010-03-06: Simon Goldschmidt
537 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
539 2010-03-06: Simon Goldschmidt
540 * ipv4/ip.c: Don't try to forward link-local addresses
542 2010-03-06: Simon Goldschmidt
543 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
546 2010-03-05: Simon Goldschmidt
547 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
550 2010-03-05: Simon Goldschmidt
551 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
552 into multiple calls to tcp_write.
554 2010-02-21: Simon Goldschmidt
555 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
556 the implementation of DNS_USES_STATIC_BUF==1)
558 2010-02-20: Simon Goldschmidt
559 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
560 close() vs. shutdown(). Now the application does not get any more
561 recv callbacks after calling tcp_close(). Added tcp_shutdown().
563 2010-02-19: Simon Goldschmidt
564 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
565 confusion with realloc()
567 2010-02-15: Simon Goldschmidt/Stephane Lesage
568 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
571 2010-02-14: Simon Goldschmidt
572 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
573 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
574 admin-status of a netif are up
576 2010-02-14: Simon Goldschmidt
577 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
578 reception and is not really necessary
580 2010-02-14: Simon Goldschmidt
581 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
582 request was directed as us (RFC 826, Packet Reception), otherwise
583 only update existing entries; internalized some functions
585 2010-02-14: Simon Goldschmidt
586 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
587 disabled on netif used for PPPoE) by adding a new netif flag
588 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
589 device but prevents usage of ARP (so that ethernet_input can be used
592 2010-02-12: Simon Goldschmidt
593 * netif.c: netif_set_link_up/down: only do something if the link state
596 2010-02-12: Simon Goldschmidt/Stephane Lesage
597 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
600 2010-02-12: Simon Goldschmidt
601 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
603 2010-02-09: Simon Goldschmidt
604 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
605 (recv() makes receive window update for data that wasn't received by
608 2010-02-09: Simon Goldschmidt/Stephane Lesage
609 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
610 or any netconn_recv() error)
612 2010-02-09: Simon Goldschmidt
613 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
615 2010-02-09: Simon Goldschmidt
616 * netif.c: For loopback packets, adjust the stats- and snmp-counters
617 for the loopback netif.
619 2010-02-08: Simon Goldschmidt
620 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
621 since they are not used anywhere else.
623 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
624 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
625 (patch from bug #28798)
627 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
628 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
629 another bug when LWIP_RAND() returns zero.
631 2010-02-04: Simon Goldschmidt
632 * nearly every file: Use macros defined in ip_addr.h (some of them new)
633 to work with IP addresses (preparation for bug #27352 - Change ip_addr
634 from struct to typedef (u32_t) - and better code).
636 2010-01-31: Simon Goldschmidt
637 * netif.c: Don't call the link-callback from netif_set_up/down() since
638 this invalidly retriggers DHCP.
640 2010-01-29: Simon Goldschmidt
641 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
642 portability file inet.h and its contents from the stack: moved htonX-
643 functions to def.h (and the new def.c - they are not ipv4 dependent),
644 let inet.h depend on ip_addr.h and not the other way round.
645 This fixes bug #28732.
647 2010-01-28: Kieran Mansley
648 * tcp.c: Ensure ssthresh >= 2*MSS
650 2010-01-27: Simon Goldschmidt
651 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
652 callback can lead to accessing unallocated memory. As a consequence,
653 ERR_ABRT means the application has called tcp_abort()!
655 2010-01-25: Simon Goldschmidt
656 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
657 not implemented in SNMP): write-only or not-accessible are still
658 returned by getnext (though not by get)
660 2010-01-24: Simon Goldschmidt
661 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
662 not use reserved C/C++ keywords
664 2010-01-23: Simon Goldschmidt
665 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
668 2010-01-21: Simon Goldschmidt
669 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
670 if tcp_enqueue fails) both in raw- and netconn-API
672 2010-01-19: Simon Goldschmidt
673 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
675 2010-01-18: Iordan Neshev/Simon Goldschmidt
676 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
677 bugfix backports from 2.4.x.
679 2010-01-18: Simon Goldschmidt
680 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
682 2010-01-17: Simon Goldschmidt
683 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
684 task #10102: "netconn: clean up conn->err threading issues" by adding
685 error return value to struct api_msg_msg
687 2010-01-17: Simon Goldschmidt
688 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
689 to return err_t (bugs #27709 and #28087)
691 2010-01-14: Simon Goldschmidt
692 * ...: Use typedef for function prototypes throughout the stack.
694 2010-01-13: Simon Goldschmidt
695 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
696 window = 0) by correctly draining recvmbox/acceptmbox
698 2010-01-11: Simon Goldschmidt
699 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
700 erroneous callbacks) by copying the code from recent pppd
702 2010-01-10: Simon Goldschmidt
703 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
705 2010-01-10: Simon Goldschmidt
706 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
708 2010-01-08: Simon Goldschmidt
709 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
711 2010-01-08: Simon Goldschmidt
712 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
713 passed to dns_local_addhost() might be volatile
715 2010-01-07: Simon Goldschmidt
716 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
718 2010-01-06: Simon Goldschmidt
719 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
721 2009-12-31: Simon Goldschmidt
722 * many ppp files: Reorganised PPP source code from ucip structure to pppd
723 structure to easily compare our code against the pppd code (around v2.3.1)
725 2009-12-27: Simon Goldschmidt
726 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
734 2009-10-27 Simon Goldschmidt/Stephan Lesage
735 * netifapi.c/.h: Added netifapi_netif_set_addr()
737 2009-10-07 Simon Goldschmidt/Fabian Koch
738 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
739 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
741 2009-08-26 Simon Goldschmidt/Simon Kallweit
742 * slipif.c/.h: bug #26397: SLIP polling support
744 2009-08-25 Simon Goldschmidt
745 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
746 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
748 2009-08-25 Simon Goldschmidt
749 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
751 2009-08-24 Jakob Stoklund Olesen
752 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
753 to netif_set_link_up().
755 2009-08-23 Simon Goldschmidt
756 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
757 to a human-readable string.
761 2009-12-24: Kieran Mansley
762 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
765 2009-12-06: Simon Goldschmidt
766 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
767 be statically allocated (like in ucip)
769 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
770 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
772 2009-12-03: Simon Goldschmidt
773 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
774 could have non-zero length
776 2009-12-02: Simon Goldschmidt
777 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
778 tcp_input_pcb until after calling the pcb's callbacks
780 2009-11-29: Simon Goldschmidt
781 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
782 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
784 2009-11-29: Simon Goldschmidt
785 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
786 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
788 2009-11-26: Simon Goldschmidt
789 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
792 2009-11-26: Simon Goldschmidt
793 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
794 algorithm at PCB level
796 2009-11-22: Simon Goldschmidt
797 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
799 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
800 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
801 reusing time-wait pcb
803 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
804 * sockets.c: Fixed bug #28062: Data received directly after accepting
805 does not wake up select
807 2009-11-11: Simon Goldschmidt
808 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
810 2009-10-30: Simon Goldschmidt
811 * opt.h: Increased default value for TCP_MSS to 536, updated default
812 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
814 2009-10-28: Kieran Mansley
815 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
816 to follow algorithm from TCP/IP Illustrated
818 2009-10-27: Kieran Mansley
819 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
821 2009-10-25: Simon Goldschmidt
822 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
823 pcb->recv is NULL to keep rcv_wnd correct)
825 2009-10-25: Simon Goldschmidt
826 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
828 2009-10-23: Simon Goldschmidt (David Empson)
829 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
831 2009-10-21: Simon Goldschmidt
832 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
833 trailing 1 byte len (SYN/FIN)
835 2009-10-21: Simon Goldschmidt
836 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
838 2009-10-19: Simon Goldschmidt
839 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
840 conditional code to assert where applicable), check pbuf length before
841 testing for valid reply
843 2009-10-19: Simon Goldschmidt
844 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
845 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
847 2009-10-16: Simon Goldschmidt
848 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
849 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
852 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
853 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
855 2009-10-15: Simon Goldschmidt
856 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
859 2009-10-15: Simon Goldschmidt
860 * autoip.c: Fixed bug #27704: autoip starts with wrong address
861 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
862 of network byte order
864 2009-10-11 Simon Goldschmidt (Jörg Kesten)
865 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
866 which are not consecutive when retransmitting unacked segments
868 2009-10-09 Simon Goldschmidt
869 * opt.h: Fixed default values of some stats to only be enabled if used
870 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
872 2009-08-30 Simon Goldschmidt
873 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
874 function" by checking for loopback before calling ip_frag
876 2009-08-25 Simon Goldschmidt
877 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
879 2009-08-23 Simon Goldschmidt
880 * ppp.c: bug #27078: Possible memory leak in pppInit()
882 2009-08-23 Simon Goldschmidt
883 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
886 2009-08-23 Simon Goldschmidt
887 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
888 Fixed wrong parenthesis, added check in init.c
890 2009-08-23 Simon Goldschmidt
891 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
893 2009-08-23 Simon Goldschmidt
894 * many ppp files: bug #27267: Added include to string.h where needed
896 2009-08-23 Simon Goldschmidt
897 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
904 2009-05-10 Simon Goldschmidt
905 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
906 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
907 one pbuf to help MACs that don't support scatter-gather DMA.
909 2009-05-09 Simon Goldschmidt
910 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
911 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
913 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
914 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
915 extended info about the currently received packet.
917 2009-04-27 Simon Goldschmidt
918 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
920 2009-04-25 Simon Goldschmidt
921 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
922 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
924 2009-04-21 Simon Goldschmidt
925 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
926 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
927 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
928 as an external function for lookup.
930 2009-04-15 Simon Goldschmidt
931 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
933 2009-03-31 Kieran Mansley
934 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
935 TCP timestamp options, off by default. Rework tcp_enqueue() to
936 take option flags rather than specified option data
938 2009-02-18 Simon Goldschmidt
939 * cc.h: Added printf formatter for size_t: SZT_F
941 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
942 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
945 2009-02-12 Simon Goldschmidt
946 * init.h: Added LWIP_VERSION to get the current version of the stack
948 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
949 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
950 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
953 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
954 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
955 is only used by UDPLITE at present, so conditionalise it.
957 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
958 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
959 "seed" address. This should reduce AUTOIP conflicts if
960 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
962 2008-10-02 Jonathan Larmour and Rishi Khan
963 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
966 2008-06-30 Simon Goldschmidt
967 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
968 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
969 mem_free to run between mem_malloc iterations. Added illegal counter for
972 2008-06-27 Simon Goldschmidt
973 * stats.h/.c, some other files: patch #6483: stats module improvement:
974 Added defines to display each module's statistic individually, added stats
975 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
977 2008-06-17 Simon Goldschmidt
978 * err.h: patch #6459: Made err_t overridable to use a more efficient type
979 (define LWIP_ERR_T in cc.h)
981 2008-06-17 Simon Goldschmidt
982 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
985 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
986 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
987 modified version of patch # 6370: Moved loopif code to netif.c so that
988 loopback traffic is supported on all netifs (all local IPs).
989 Added option to limit loopback packets for each netifs.
993 2009-08-12 Kieran Mansley
994 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
995 out of window or out of order properly
997 2009-08-12 Kieran Mansley
998 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1000 2009-07-28 Simon Goldschmidt
1001 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1003 2009-07-27 Kieran Mansley
1004 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1006 2009-07-09 Kieran Mansley
1007 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1008 recv_avail and don't increment counters until message successfully
1011 2009-06-25 Kieran Mansley
1012 * api_msg.c api.h: BUG26722: initialise netconn write variables
1015 2009-06-25 Kieran Mansley
1016 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1018 2009-06-25 Kieran Mansley
1019 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1020 simultaneous close behaviour, and make snd_nxt have the same meaning
1023 2009-05-12 Simon Goldschmidt
1024 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1025 arp_table / uses etharp_query" by adding etharp_gratuitous()
1027 2009-05-12 Simon Goldschmidt
1028 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1029 to the IP header (used by igmp_ip_output_if)
1031 2009-05-06 Simon Goldschmidt
1032 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1033 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1035 2009-05-05 Simon Goldschmidt
1036 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1039 2009-05-04 Simon Goldschmidt
1040 * init.c: snmp was not initialized in lwip_init()
1042 2009-05-04 Frédéric Bernon
1043 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1045 2009-05-03 Simon Goldschmidt
1046 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1047 (and unsent->next == NULL)
1049 2009-05-02 Simon Goldschmidt
1050 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1051 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1053 2009-05-02 Simon Goldschmidt
1054 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1056 2009-05-01 Simon Goldschmidt
1057 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1059 2009-05-01 Simon Goldschmidt
1060 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1062 2009-04-29 Frédéric Bernon
1063 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1064 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1065 of broadcast packets even when this option wasn't set. Port maintainers
1066 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1067 If you want this option also filter broadcast on recv operations, you also
1068 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1070 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1071 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1072 DHCP/AUTOIP cooperation
1074 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1075 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1076 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1077 right place in tcp_output and tcp_rexmit).
1079 2009-04-25 Simon Goldschmidt
1080 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1081 when debugging": memp_sizes contained the wrong sizes (including sanity
1082 regions); memp pools for MEM_USE_POOLS were too small
1084 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1085 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1086 behavior, with with ip address string not ended by a '\0', a space or a
1089 2009-04-19 Simon Goldschmidt
1090 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1091 pcb->err is called, not pcb->connected (with an error code).
1093 2009-04-19 Simon Goldschmidt
1094 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1095 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1097 2009-04-19 Simon Goldschmidt
1098 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1099 in the header pbuf, not the data pbuf)
1101 2009-04-18 Simon Goldschmidt
1102 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1104 2009-04-15 Simon Goldschmidt
1105 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1107 2009-04-15 Simon Goldschmidt
1108 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1110 2009-04-15 Simon Goldschmidt
1111 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1112 ip_hinted_output() (for smaller code mainly)
1114 2009-04-15 Simon Goldschmidt
1115 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1117 2009-04-15 Simon Goldschmidt
1118 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1119 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1120 is big enough in dhcp_start
1122 2009-04-15 Simon Goldschmidt
1123 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1125 2009-04-15 Simon Goldschmidt
1126 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1128 2009-04-15 Simon Goldschmidt
1129 * sockets.c: bug #26121: set_errno can be overridden
1131 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1132 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1135 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1136 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1139 2009-03-31 Kieran Mansley
1140 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1141 updates are calculated and sent (BUG20515)
1143 * tcp_in.c: cope with SYN packets received during established states,
1144 and retransmission of initial SYN.
1146 * tcp_out.c: set push bit correctly when tcp segments are merged
1148 2009-03-27 Kieran Mansley
1149 * tcp_out.c set window correctly on probes (correcting change made
1152 2009-03-26 Kieran Mansley
1153 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1154 connections where no reset required (bug #25622)
1156 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1159 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1160 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1161 too small depending on MEM_ALIGNMENT
1163 2009-02-16 Simon Goldschmidt
1164 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1165 converted size argument of netconn_write to 'size_t'
1167 2009-02-16 Simon Goldschmidt
1168 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1169 by moving accept callback function pointer to TCP_PCB_COMMON
1171 2009-02-12 Simon Goldschmidt
1172 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1175 2009-02-11 Simon Goldschmidt
1176 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1178 2009-02-11 Simon Goldschmidt
1179 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1180 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1182 2009-02-10 Simon Goldschmidt
1183 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1184 Accepts_pending is decrease on a corresponding listen pcb when a connection
1185 in state SYN_RCVD is close.
1187 2009-01-28 Jonathan Larmour
1188 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1191 2008-12-19 Simon Goldschmidt
1192 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1194 2008-12-10 Tamas Somogyi, Frédéric Bernon
1195 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1196 port uses deleted netbuf.
1198 2008-10-18 Simon Goldschmidt
1199 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1202 2008-10-15 Simon Goldschmidt
1203 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1204 by packing the struct ip_reass_helper.
1206 2008-10-03 David Woodhouse, Jonathan Larmour
1207 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1209 2008-10-02 Jonathan Larmour
1210 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1211 padding is included.
1213 2008-09-30 Jonathan Larmour
1214 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1215 assertion check that addrlen isn't NULL.
1217 2008-09-30 Jonathan Larmour
1218 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1220 2008-08-26 Simon Goldschmidt
1221 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1222 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1224 2008-08-14 Simon Goldschmidt
1225 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1226 tcp_close returns != ERR_OK)
1228 2008-07-08 Frédéric Bernon
1229 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1230 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1232 2008-06-24 Jonathan Larmour
1233 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1234 if tcp_seg_copy fails.
1236 2008-06-17 Simon Goldschmidt
1237 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1238 and created defines for swapping bytes and folding u32 to u16.
1240 2008-05-30 Kieran Mansley
1241 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1242 rather than rcv_ann_wnd when deciding if packets are in-window.
1243 Contributed by <arasmussen@consultant.datasys.swri.edu>
1245 2008-05-30 Kieran Mansley
1246 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1247 passing as function pointers when MEM_LIBC_MALLOC is defined.
1249 2008-05-09 Jonathan Larmour
1250 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1251 stop it being treated as a fatal error.
1253 2008-04-15 Simon Goldschmidt
1254 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1257 2008-03-27 Simon Goldschmidt
1258 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1259 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1260 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1261 or heap memory from interrupt context
1263 2008-03-26 Simon Goldschmidt
1264 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1265 host sent a zero mss as TCP option.
1272 2008-03-10 Jonathan Larmour
1273 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1274 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1276 2008-01-22 Frédéric Bernon
1277 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1278 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1280 2008-01-14 Frédéric Bernon
1281 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1282 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1283 tcp_recv callback (see rawapi.txt).
1285 2008-01-14 Frédéric Bernon, Marc Chaland
1286 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1288 2008-01-12 Frédéric Bernon
1289 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1290 netconn::sem per netconn::op_completed like suggested for the task #7490
1291 "Add return value to sys_mbox_post".
1293 2008-01-12 Frédéric Bernon
1294 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1295 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1296 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1298 2008-01-10 Frédéric Bernon
1299 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1300 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1301 "blocking" ("block" parameter = 1).
1303 2008-01-10 Frédéric Bernon
1304 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1305 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1306 "Add return value to sys_mbox_post".
1308 2008-01-05 Frédéric Bernon
1309 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1310 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1311 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1312 indicate the number of pointers query by the mailbox. There is three defines
1313 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1314 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1315 parameter in your implementation, but to ignore it to keep the previous behavior.
1316 The new sys_mbox_trypost function return a value to know if the mailbox is
1317 full or if the message is posted. Take a look to sys_arch.txt for more details.
1318 This new function is used in tcpip_input (so, can be called in an interrupt
1319 context since the function is not blocking), and in recv_udp and recv_raw.
1321 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1322 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1323 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1324 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1325 documentation in the rawapi.txt file.
1327 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1328 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1330 2007-12-31 Frédéric Bernon, Luca Ceresoli
1331 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1332 in autoip". The change in etharp_raw could be removed, since all calls to
1333 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1334 wrong in the future.
1336 2007-12-30 Frédéric Bernon, Tom Evans
1337 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1338 Filtering" reported by Tom Evans.
1340 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1341 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1342 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1343 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1344 keep accepting new connections.
1346 2007-12-13 Frédéric Bernon
1347 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1348 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1350 2007-12-12 Frédéric Bernon
1351 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1352 are the one which have ram usage.
1354 2007-12-05 Frédéric Bernon
1355 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1356 set of variables (=0) or a local one (=1). In this last case, your port should
1357 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1358 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1360 2007-12-03 Simon Goldschmidt
1361 * ip.c: ip_input: check if a packet is for inp first before checking all other
1362 netifs on netif_list (speeds up packet receiving in most cases)
1364 2007-11-30 Simon Goldschmidt
1365 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1366 UDP: move a (connected) pcb selected for input to the front of the list of
1367 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1370 2007-11-28 Simon Goldschmidt
1371 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1373 2007-11-25 Simon Goldschmidt
1374 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1377 2007-11-24 Simon Goldschmidt
1378 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1379 to the new file netdb.c; included lwip_getaddrinfo.
1381 2007-11-21 Simon Goldschmidt
1382 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1383 based on the MTU of the netif used to send. Enabled by default. Disable by
1384 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1386 2007-11-19 Frédéric Bernon
1387 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1388 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1389 copy dns payload to parse the response), return an error if there is no place
1390 for a new query, and fix some minor problems.
1392 2007-11-16 Simon Goldschmidt
1393 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1394 removed files: core/inet.c, core/inet6.c
1395 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1396 inet and chksum part; changed includes in all lwIP files as appropriate
1398 2007-11-16 Simon Goldschmidt
1399 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1400 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1401 (gethostbyname/gethostbyname_r).
1403 2007-11-15 Jim Pettinato, Frédéric Bernon
1404 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1405 requests with RAW api interface. Initialization is done in lwip_init() with
1406 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1407 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1408 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1409 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1410 list with points to improve.
1412 2007-11-06 Simon Goldschmidt
1413 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1414 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1415 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1417 2007-11-06 Simon Goldschmidt
1418 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1419 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1420 implementation from netconn api applications.
1422 2007-11-03 Frédéric Bernon
1423 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1424 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1425 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1426 it. This is a first release which have to be improve for TCP. Note it used the
1427 netconn::recv_avail which need to be more "thread-safe" (note there is already
1428 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1430 2007-11-01 Frédéric Bernon, Marc Chaland
1431 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1432 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1433 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1434 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1435 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1437 2007-10-24 Frédéric Bernon
1438 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1439 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1440 some code (like we have talk in "patch #5919 : Create compile switch to remove
1441 select code"), but it could be done later.
1443 2007-10-08 Simon Goldschmidt
1444 * many files: Changed initialization: many init functions are not needed any
1445 more since we now rely on the compiler initializing global and static
1448 2007-10-06 Simon Goldschmidt
1449 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1450 to enqueue the received pbufs so that multiple packets can be reassembled
1451 simultaneously and no static reassembly buffer is needed.
1453 2007-10-05 Simon Goldschmidt
1454 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1455 all netifs (or ports) can use it.
1457 2007-10-05 Frédéric Bernon
1458 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1459 common function to reduce a little bit the footprint (for all functions using
1460 only the "netif" parameter).
1462 2007-10-03 Frédéric Bernon
1463 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1464 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1465 a little bit the footprint (for all functions using only the "netif" parameter).
1467 2007-09-15 Frédéric Bernon
1468 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1469 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1470 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1471 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1473 2007-09-10 Frédéric Bernon
1474 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1475 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1476 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1477 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1478 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1479 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1480 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1481 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1482 when it's queried (any direct call to "sysuptime" is changed by a call to
1483 snmp_get_sysuptime).
1485 2007-09-09 Frédéric Bernon, Bill Florac
1486 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1487 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1488 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1489 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1490 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1491 the next query message to receive the matching multicast streams).
1493 2007-09-08 Frédéric Bernon
1494 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1495 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1496 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1497 Enable to access to these fields with LWIP_TCP=0.
1499 2007-09-05 Frédéric Bernon
1500 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1501 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1502 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1503 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1504 help to reduce footprint, and to reduce "visibility" on the Internet.
1506 2007-09-05 Frédéric Bernon, Bill Florac
1507 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1508 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1509 parameters have to be provided: a task name, and a task stack size. For this
1510 one, since it's platform dependant, you could define the best one for you in
1511 your lwipopts.h. For port maintainers, you can just add these new parameters
1512 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1515 2007-09-05 Frédéric Bernon
1516 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1517 inside init.c for task #7142 "Sanity check user-configurable values".
1519 2007-09-04 Frédéric Bernon, Bill Florac
1520 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1521 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1522 value). It will avoid potential fragmentation problems, use a counter to know
1523 how many times a group is used on an netif, and free it when all applications
1524 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1525 check if LWIP_IGMP!=0).
1527 2007-09-03 Frédéric Bernon
1528 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1529 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1530 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1531 and/or the "interface" field (for netconn layer), for join/leave operations.
1532 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1533 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1535 2007-08-30 Frédéric Bernon
1536 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1537 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1538 with other API (application based on raw API, or future "socket2" API). Ports
1539 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1541 2007-08-30 Frédéric Bernon, Jonathan Larmour
1542 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1543 user-configurable values".
1545 2007-08-29 Frédéric Bernon
1546 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1547 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1548 spirit than the others modules. Modify some IGMP debug traces.
1550 2007-08-29 Frédéric Bernon
1551 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1552 Add lwip_init function to regroup all modules initializations, and to provide
1553 a place to add code for task #7142 "Sanity check user-configurable values".
1554 Ports maintainers should remove direct initializations calls from their code,
1555 and add init.c in their makefiles. Note that lwip_init() function is called
1556 inside tcpip_init, but can also be used by raw api users since all calls are
1557 disabled when matching options are disabled. Also note that their is new options
1558 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1560 2007-08-26 Marc Boucher
1561 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1562 since they can under certain circumstances be called with an invalid conn
1563 pointer after the connection has been closed (and conn has been freed).
1565 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1566 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1567 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1569 2007-08-22 Frédéric Bernon
1570 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1571 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1573 2007-08-22 Frédéric Bernon
1574 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1575 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1576 name is tcpip_input (we keep the name of 1.2.0 function).
1578 2007-08-17 Jared Grubb
1579 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1580 settings into new memp_std.h and optional user file lwippools.h. This adds
1581 more dynamic mempools, and allows the user to create an arbitrary number of
1582 mempools for mem_malloc.
1584 2007-08-16 Marc Boucher
1585 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1586 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1587 close the connection.
1589 2007-08-16 Marc Boucher
1590 * sockets.c: lwip_accept(): check netconn_peer() error return.
1592 2007-08-16 Marc Boucher
1593 * mem.c, mem.h: Added mem_calloc().
1595 2007-08-16 Marc Boucher
1596 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1597 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1598 and starving other message types.
1599 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1601 2007-08-16 Marc Boucher
1602 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1603 type and flgs (later renamed to flags).
1604 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1605 Improved lwip_recvfrom(). TCP push now propagated.
1607 2007-08-16 Marc Boucher
1608 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1611 2007-08-16 Marc Boucher
1612 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1613 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1614 Added PPPoE support and various PPP improvements.
1616 2007-07-25 Simon Goldschmidt
1617 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1618 making netbuf_copy_partial use this function.
1620 2007-07-25 Simon Goldschmidt
1621 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1622 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1625 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1626 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1627 a link callback in the netif struct, and functions to handle it. Be carefull
1628 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1629 if you want to be sure to be compatible with future changes...
1631 2007-06-30 Frédéric Bernon
1632 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1634 2007-06-21 Simon Goldschmidt
1635 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1636 LWIP_AUTOIP =0 and =1 to remove redundant code.
1638 2007-06-21 Simon Goldschmidt
1639 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1640 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1641 heap. This both prevents memory fragmentation and gives a higher speed
1642 at the cost of more memory consumption. Turned off by default.
1644 2007-06-21 Simon Goldschmidt
1645 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1646 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1647 int to be able to send a bigger buffer than 64K with one time (mainly
1648 used from lwip_send).
1650 2007-06-21 Simon Goldschmidt
1651 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1652 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1654 2007-06-21 Simon Goldschmidt
1655 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1656 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1657 changes on low memory or empty send-buffer.
1659 2007-06-18 Simon Goldschmidt
1660 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1661 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1662 used for ethernet and struct eth_addr already had a defined length of 6).
1664 2007-06-17 Simon Goldschmidt
1665 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1666 to disable UDP checksum generation on transmit.
1668 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1669 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1670 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1671 this macro to check "conn" parameter in api_msg.c functions.
1673 2007-06-11 Simon Goldschmidt
1674 * sockets.c, sockets.h: Added UDP lite support for sockets
1676 2007-06-10 Simon Goldschmidt
1677 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1678 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1681 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1682 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1683 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1684 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1685 (see TODO mark in the source code).
1687 2007-06-09 Simon Goldschmidt
1688 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1689 etharp_output() to match netif->output so etharp_output() can be used
1690 directly as netif->output to save one function call.
1692 2007-06-08 Simon Goldschmidt
1693 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1694 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1695 added initialization of those to ethernetif, slipif and loopif.
1697 2007-05-18 Simon Goldschmidt
1698 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1699 (defaulting to off for now) that can be set to 0 to send fragmented
1700 packets by passing PBUF_REFs down the stack.
1702 2007-05-23 Frédéric Bernon
1703 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1704 connections, such present in patch #5959.
1706 2007-05-23 Frédéric Bernon
1707 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1708 code in only one part...
1710 2007-05-18 Simon Goldschmidt
1711 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1712 elements to overflow. This is achieved by adding some bytes before and after
1713 each pool element (increasing their size, of course), filling them with a
1714 prominent value and checking them on freeing the element.
1715 Set it to 2 to also check every element in every pool each time memp_malloc()
1716 or memp_free() is called (slower but more helpful).
1718 2007-05-10 Simon Goldschmidt
1719 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1720 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1723 2007-05-11 Frédéric Bernon
1724 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1725 Include a function pointer instead of a table index in the message to reduce
1726 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1727 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1729 2007-05-10 Simon Goldschmidt
1730 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1731 \ extern "C" {' in all header files. Now you can write your application using
1732 the lwIP stack in C++ and simply #include the core files. Note I have left
1733 out the netif/ppp/*h header files for now, since I don't know which files are
1734 included by applications and which are for internal use only.
1736 2007-05-09 Simon Goldschmidt
1737 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1738 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1739 situations where some compilers might inline the copy and save a function
1740 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1742 2007-05-08 Simon Goldschmidt
1743 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1744 to be overriden in case the C-library malloc implementation is not protected
1745 against concurrent access.
1747 2007-05-04 Simon Goldschmidt (Atte Kojo)
1748 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1749 multiple packets to the same host.
1751 2007-05-04 Frédéric Bernon, Jonathan Larmour
1752 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1753 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1754 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1755 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1756 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1757 these fields are now renamed "addr" & "port".
1759 2007-04-11 Jonathan Larmour
1760 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1761 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1762 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1763 by the port in sys_arch.h if desired.
1765 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1766 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1767 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1768 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1770 2007-04-05 Frédéric Bernon
1771 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1773 2007-04-04 Simon Goldschmidt
1774 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1775 use this for and architecture-independent form to tell the compiler you intentionally
1776 are not using this variable. Can be overriden in cc.h.
1778 2007-03-28 Frédéric Bernon
1779 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1780 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1781 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1782 It will be used by DHCP to register a client hostname, but can also be use when you call
1785 2007-03-28 Frédéric Bernon
1786 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1787 initialize a network interface's flag with. It tell this interface is an ethernet
1788 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1789 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1791 2007-03-26 Frédéric Bernon, Jonathan Larmour
1792 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1793 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1794 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1795 is done in tcpip_init function.
1797 2007-03-22 Frédéric Bernon
1798 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1799 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1800 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1801 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1802 but never used. Fix msg_in.c with the correct #if test for a stat display.
1804 2007-03-21 Kieran Mansley
1805 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1806 Provides callback on netif up/down state change.
1808 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1809 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1810 ip.c, netif.h, tcpip.c, opt.h:
1811 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1812 filter per all network interfaces. Declare a new function in netif to enable to
1813 control the MAC filter (to reduce lwIP traffic processing).
1815 2007-03-11 Frédéric Bernon
1816 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1817 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1818 unless you know what you're doing (default are RFC1122 compliant). Note
1819 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1821 2007-03-08 Frédéric Bernon
1822 * tcp.h: Keepalive values can be configured at compile time, but don't change
1823 this unless you know what you're doing (default are RFC1122 compliant).
1825 2007-03-08 Frédéric Bernon
1826 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1827 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1828 on UDP sockets/netconn.
1830 2007-03-08 Simon Goldschmidt
1831 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1833 2007-03-06 Frédéric Bernon
1834 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1835 Implement SO_RCVTIMEO on UDP sockets/netconn.
1837 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1838 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1839 on the stack and remove the API msg type from memp
1841 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1842 * sockets.h, sockets.c: Move socket initialization to new
1843 lwip_socket_init() function.
1844 NOTE: this changes the API with ports. Ports will have to be
1845 updated to call lwip_socket_init() now.
1847 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1848 * api_lib.c: Use memcpy in netbuf_copy_partial.
1853 2008-03-17 Frédéric Bernon, Ed Kerekes
1854 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1855 some problems to fill the IP header on some targets, use now the
1856 ip.h macros to do it).
1858 2008-03-13 Frédéric Bernon
1859 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1860 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1861 TCP connection caused a crash. Note that using (lwip_)recvfrom
1862 like this is a bit slow and that using (lwip)getpeername is the
1863 good lwip way to do it (so, using recv is faster on tcp sockets).
1865 2008-03-12 Frédéric Bernon, Jonathan Larmour
1866 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1867 recv_raw() does not consume data", and the ping sample (with
1868 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1869 returned the IP payload, without the IP header).
1871 2008-03-04 Jonathan Larmour
1872 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1873 and/or warnings on some systems where mem_size_t and size_t differ.
1874 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1876 2008-03-04 Kieran Mansley (contributions by others)
1877 * Numerous small compiler error/warning fixes from contributions to
1878 mailing list after 1.3.0 release candidate made.
1880 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1881 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1883 2008-01-15 Kieran Mansley
1884 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1885 prevented from sending by a small send window, not just a zero
1888 2008-01-09 Jonathan Larmour
1889 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1890 conflict with Linux system headers.
1892 2008-01-06 Jonathan Larmour
1893 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1894 address entirely on receiving a DHCPNAK, and restarting discovery.
1896 2007-12-21 Simon Goldschmidt
1897 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1898 is not protected" by using new macros for interlocked access to modify/test
1899 netconn->recv_avail.
1901 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1902 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1904 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1905 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1906 of silly window avoidance and prevent lwIP from shrinking the window)
1908 2007-12-04 Simon Goldschmidt
1909 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1910 data packet was lost): add assert that all segment lists are empty in
1911 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1912 state from LAST_ACK in tcp_process
1914 2007-12-02 Simon Goldschmidt
1915 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1916 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1917 has to be set to 0 in lwipopts.h
1919 2007-12-02 Simon Goldschmidt
1920 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1921 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1922 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1923 This is a fix for thread-safety and allocates all items needed for a netconn
1924 when the netconn is created.
1926 2007-11-30 Simon Goldschmidt
1927 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1928 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1929 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1930 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1932 2007-11-27 Simon Goldschmidt
1933 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1934 letting ip_route only use netifs that are up.
1936 2007-11-27 Simon Goldschmidt
1937 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1938 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1939 sockets block most operations once they have seen a fatal error.
1941 2007-11-27 Simon Goldschmidt
1942 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1943 netif to send as an argument (to be able to send on netifs that are down).
1945 2007-11-26 Simon Goldschmidt
1946 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1949 2007-11-21 Simon Goldschmidt
1950 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1951 Fixed the nagle algorithm; nagle now also works for all raw API applications
1952 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1954 2007-11-12 Frédéric Bernon
1955 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1956 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1957 context in do_getaddr.
1959 2007-11-10 Simon Goldschmidt
1960 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1961 happen any time). Now the packet simply isn't enqueued when out of memory.
1963 2007-11-01 Simon Goldschmidt
1964 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1965 TCP_MSS if that is smaller) as long as no MSS option is received from the
1968 2007-11-01 Simon Goldschmidt
1969 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1970 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1971 sending our configured TCP_MSS instead of the one received).
1973 2007-11-01 Simon Goldschmidt
1974 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1975 calculated based on the configured TCP_MSS, not on the MSS option received
1978 2007-10-09 Simon Goldschmidt
1979 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
1980 short and also was generated wrong if checksum coverage != tot_len;
1981 receive: checksum was calculated wrong if checksum coverage != tot_len
1983 2007-10-08 Simon Goldschmidt
1984 * mem.c: lfree was not updated in mem_realloc!
1986 2007-10-07 Frédéric Bernon
1987 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
1988 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
1989 this change cause an API breakage for netconn_addr, since a parameter
1990 type change. Any compiler should cause an error without any changes in
1991 yours netconn_peer calls (so, it can't be a "silent change"). It also
1992 reduce a little bit the footprint for socket layer (lwip_getpeername &
1993 lwip_getsockname use now a common lwip_getaddrname function since
1994 netconn_peer & netconn_addr have the same parameters).
1996 2007-09-20 Simon Goldschmidt
1997 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
1998 by checking tcp_tw_pcbs also
2000 2007-09-19 Simon Goldschmidt
2001 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2003 2007-09-15 Mike Kleshov
2004 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2006 2007-09-06 Frédéric Bernon
2007 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2008 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2009 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2010 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2012 2007-08-30 Frédéric Bernon
2013 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2014 and fix some coding style.
2016 2007-08-28 Frédéric Bernon
2017 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2018 kind of packets. These packets are considered like Ethernet packets (payload
2019 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2020 are considered like IP packets (payload pointing to iphdr).
2022 2007-08-27 Frédéric Bernon
2023 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2024 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2025 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2027 2007-08-24 Kieran Mansley
2028 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2029 compiler (Paradigm C++)
2031 2007-08-09 Frédéric Bernon, Bill Florac
2032 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2033 Introduce IGMP_STATS to centralize statistics management.
2035 2007-08-09 Frédéric Bernon, Bill Florac
2036 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2037 packet on a udp pcb binded on an netif's IP address, and not on "any".
2039 2007-08-09 Frédéric Bernon, Bill Florac
2040 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2041 This is mainly on using lookup/lookfor, and some coding styles...
2043 2007-07-26 Frédéric Bernon (and "thedoctor")
2044 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2046 2007-07-25 Simon Goldschmidt
2047 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2048 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2049 (tcp_output is called again later from tcp timers).
2051 2007-07-25 Simon Goldschmidt
2052 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2053 copy_from_pbuf, which illegally modified the given pbuf.
2055 2007-07-25 Simon Goldschmidt
2056 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2057 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2059 2007-07-24 Simon Goldschmidt
2060 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2061 correct state (must be CLOSED).
2063 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2064 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2065 allocation. It now returns NULL.
2067 2007-07-13 Frédéric Bernon
2068 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2071 2007-07-13 Frédéric Bernon
2072 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2073 because current code doesn't follow rawapi.txt documentation.
2075 2007-07-13 Kieran Mansley
2076 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2077 out of sequence processing of received packets
2079 2007-07-03 Simon Goldschmidt
2080 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2081 assumption is made that this pbuf is in one piece (i.e. not chained). These
2082 assumptions clash with the possibility of converting to fully pool-based
2083 pbuf implementations, where PBUF_RAM pbufs might be chained.
2085 2007-07-03 Simon Goldschmidt
2086 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2087 when closing tcp netconns: removed conn->sem, less context switches when
2088 closing, both netconn_close and netconn_delete should safely close tcp
2091 2007-07-02 Simon Goldschmidt
2092 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2093 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2094 to cache ARP table indices with each pcb instead of single-entry cache for
2097 2007-07-02 Simon Goldschmidt
2098 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2099 warnings when assigning to smaller types.
2101 2007-06-28 Simon Goldschmidt
2102 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2104 2007-06-28 Simon Goldschmidt
2105 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2106 a segment contained chained pbufs)
2108 2007-06-28 Frédéric Bernon
2109 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2110 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2111 possible to define this macro in your own lwipopts.h to always use C library's
2112 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2114 2007-06-28 Frédéric Bernon
2115 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2116 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2117 in api_lib/api_msg (use pointers and not type with table, etc...)
2119 2007-06-26 Simon Goldschmidt
2120 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2122 2007-06-25 Simon Goldschmidt
2123 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2124 for udp packets with no matching pcb.
2126 2007-06-25 Simon Goldschmidt
2127 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2128 could get udp input packets if the remote side matched.
2130 2007-06-13 Simon Goldschmidt
2131 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2132 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2134 2007-06-13 Simon Goldschmidt
2135 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2136 -> netconn_new_..() does not allocate a new connection for unsupported
2139 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2140 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2141 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2143 2007-06-13 Frédéric Bernon, Matthias Weisser
2144 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2145 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2146 some macro names collision with some OS macros.
2148 2007-06-11 Simon Goldschmidt
2149 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2150 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2151 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2154 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2155 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2156 where TCP flags wasn't initialized in tcp_keepalive.
2158 2007-06-03 Simon Goldschmidt
2159 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2160 registered, p->payload was modified without modifying p->len if sending
2161 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2163 2007-06-03 Simon Goldschmidt
2164 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2165 re-used the input pbuf even if that didn't have enough space to include the
2166 link headers. Now the space is tested and a new pbuf is allocated for the
2167 echo response packet if the echo request pbuf isn't big enough.
2169 2007-06-01 Simon Goldschmidt
2170 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2172 2007-05-23 Frédéric Bernon
2173 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2174 allocated by do_listen if success) and netconn_accept errors handling. In
2175 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2176 by ASSERT, except for netconn_delete.
2178 2007-05-23 Frédéric Bernon
2179 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2180 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2181 directly close the recvmbox).
2183 2007-05-22 Simon Goldschmidt
2184 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2185 bound but unconnected (and non-listening) tcp_pcbs.
2187 2007-05-22 Frédéric Bernon
2188 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2189 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2190 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2191 like "sys_timeout" in their application threads.
2193 2007-05-22 Frédéric Bernon
2194 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2195 which parameters are used by which do_xxx function, and to avoid "misusing"
2196 parameters (patch #5938).
2198 2007-05-22 Simon Goldschmidt
2199 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2200 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2201 is only 8 bits wide. This affects the api, as there, the protocol was
2204 2007-05-18 Simon Goldschmidt
2205 * memp.c: addition to patch #5913: smaller pointer was returned but
2206 memp_memory was the same size -> did not save memory.
2208 2007-05-16 Simon Goldschmidt
2209 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2212 2007-05-16 Simon Goldschmidt
2213 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2214 as the one of the netif used for sending to prevent sending from old
2215 addresses after a netif address gets changed (partly fixes bug #3168).
2217 2007-05-16 Frédéric Bernon
2218 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2219 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2220 tcpip_init) because we have to be sure that network interfaces are already
2221 added (mac filter is updated only in igmp_init for the moment).
2223 2007-05-16 Simon Goldschmidt
2224 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2225 into sys_arch_sem_wait calls to prevent timers from running while waiting
2226 for the heap. This fixes bug #19167.
2228 2007-05-13 Simon Goldschmidt
2229 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2230 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2233 2007-05-07 Simon Goldschmidt
2234 * mem.c: Another attempt to fix bug #17922.
2236 2007-05-04 Simon Goldschmidt
2237 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2238 implementation so that it can be reused (don't allocate the target
2239 pbuf inside pbuf_copy()).
2241 2007-05-04 Simon Goldschmidt
2242 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2243 to save a little RAM (next pointer of memp is not used while not in pool).
2246 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2249 2007-04-23 Simon Goldschmidt
2250 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2251 in NULL reference for incoming TCP packets". Loopif has to be configured
2252 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2253 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2254 putting packets on a list that is fed to the stack by calling loopif_poll()
2255 (single-thread / NO_SYS / polling environment where e.g.
2256 netif->input() = ip_input).
2258 2007-04-17 Jonathan Larmour
2259 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2260 the difference between two u16_t's.
2261 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2262 MEMP_NUM_NETCONN in sockets.c right now.
2264 2007-04-12 Jonathan Larmour
2265 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2267 2007-04-12 Kieran Mansley
2268 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2269 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2271 2007-04-11 Simon Goldschmidt
2272 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2273 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2274 pbuf.c: removed functions no needed any more (by etharp).
2276 2007-04-11 Kieran Mansley
2277 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2278 "Constant is long" warnings with 16bit compilers. Contributed by
2279 avatar@mmlab.cse.yzu.edu.tw
2281 2007-04-05 Frédéric Bernon, Jonathan Larmour
2282 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2283 the mailbox is active". Now, the post is only done during a connect, and do_send,
2284 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2286 2007-04-03 Frédéric Bernon
2287 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2288 packets. See patch #5834.
2290 2007-03-30 Frédéric Bernon
2291 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2292 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2294 2007-03-30 Frédéric Bernon
2295 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2296 others environment defines (these were too "generic").
2298 2007-03-28 Frédéric Bernon
2299 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2300 result and can cause a crash. lwip_send now check netbuf_ref result.
2302 2007-03-28 Simon Goldschmidt
2303 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2304 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2305 defined. This is the way it should have been already (looking at
2308 2007-03-28 Kieran Mansley
2309 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2310 IP and TCP headers *and* physical link headers
2312 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2313 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2314 to send some garbage. It is not a definitive solution, but the patch does solve
2315 the problem for most cases.
2317 2007-03-22 Frédéric Bernon
2318 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2320 2007-03-22 Frédéric Bernon
2321 * api_lib.c: somes resources couldn't be freed if there was errors during
2322 netconn_new_with_proto_and_callback.
2324 2007-03-22 Frédéric Bernon
2325 * ethernetif.c: update netif->input calls to check return value. In older ports,
2326 it's a good idea to upgrade them, even if before, there could be another problem
2327 (access to an uninitialized mailbox).
2329 2007-03-21 Simon Goldschmidt
2330 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2331 by casting to unsigned).
2333 2007-03-21 Frédéric Bernon
2334 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2335 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2336 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2337 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2338 faster and more reliable communication between api_lib and tcpip.
2340 2007-03-21 Frédéric Bernon
2341 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2343 2007-03-21 Frédéric Bernon
2344 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2346 2007-03-21 Kieran Mansley
2347 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2350 2007-03-21 Kieran Mansley
2351 * Fix all uses of pbuf_header to check the return value. In some
2352 cases just assert if it fails as I'm not sure how to fix them, but
2353 this is no worse than before when they would carry on regardless
2356 2007-03-21 Kieran Mansley
2357 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2358 comment out missing header include in icmp.c
2360 2007-03-20 Frédéric Bernon
2361 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2362 synchronized with memp.h.
2364 2007-03-20 Frédéric Bernon
2365 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2366 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2367 network interfaces. Also fix a compiler warning.
2369 2007-03-20 Kieran Mansley
2370 * udp.c: Only try and use pbuf_header() to make space for headers if
2371 not a ROM or REF pbuf.
2373 2007-03-19 Frédéric Bernon
2374 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2377 2007-03-19 Frédéric Bernon
2378 * Remove unimplemented "memp_realloc" function from memp.h.
2380 2007-03-11 Simon Goldschmidt
2381 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2384 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2385 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2386 (missing `const' qualifier in socket functions), to get more compatible to
2387 standard POSIX sockets.
2389 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2390 * sockets.c: Add asserts inside bind, connect and sendto to check input
2391 parameters. Remove excessive set_errno() calls after get_socket(), because
2392 errno is set inside of get_socket(). Move last sock_set_errno() inside
2395 2007-03-09 Simon Goldschmidt
2396 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2397 was allocated too small.
2399 2007-03-06 Simon Goldschmidt
2400 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2401 the stack from concurrent access.
2403 2007-03-06 Frédéric Bernon, Dmitry Potapov
2404 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2405 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2407 2007-03-06 Simon Goldschmidt
2408 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2409 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2411 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2412 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2413 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2414 Allow to do ARP processing for incoming packets inside tcpip_thread
2415 (protecting ARP layer against concurrent access). You can also disable
2416 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2417 Older ports have to use tcpip_ethinput.
2419 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2420 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2421 from pointer target type"
2423 2007-03-05 Frédéric Bernon
2424 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2425 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2427 2007-03-04 Frédéric Bernon
2428 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2431 2007-03-04 Frédéric Bernon
2432 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2434 The api_msg struct stay on the stack (not moved to netconn struct).
2436 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2437 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2438 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2439 Also fixed cast warning in pbuf_alloc()
2441 2007-03-04 Simon Goldschmidt
2442 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2443 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2445 2007-03-03 Frédéric Bernon
2446 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2447 It is static, and never used in udp.c except udp_init().
2449 2007-03-02 Simon Goldschmidt
2450 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2451 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2452 initialized before tcpip_thread is running (e.g. before OS is started)
2454 2007-03-02 Frédéric Bernon
2455 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2458 2007-02-28 Kieran Mansley
2459 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2460 outside the region of the pbuf by pbuf_header()
2462 2007-02-28 Kieran Mansley
2463 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2464 when supplied timeout is also non-zero
2468 2006-12-05 Leon Woestenberg
2469 * CHANGELOG: Mention STABLE-1.2.0 release.
2473 2006-12-01 Christiaan Simons
2474 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2475 Note this is a workaround. Currently I have no other options left.
2477 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2478 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2479 to include/lwip/opt.h.
2480 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2481 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2482 * opt.h: Add above new options.
2484 2006-08-18 Christiaan Simons
2485 * tcp_{in,out}.c: added SNMP counters.
2486 * ipv4/ip.c: added SNMP counters.
2487 * ipv4/ip_frag.c: added SNMP counters.
2489 2006-08-08 Christiaan Simons
2490 * etharp.{c,h}: added etharp_find_addr() to read
2491 (stable) ethernet/IP address pair from ARP table
2493 2006-07-14 Christiaan Simons
2494 * mib_structs.c: added
2495 * include/lwip/snmp_structs.h: added
2496 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2498 2006-07-06 Christiaan Simons
2499 * snmp/asn1_{enc,dec}.c added
2501 * snmp/msg_{in,out}.c added
2502 * include/lwip/snmp_asn1.h added
2503 * include/lwip/snmp_msg.h added
2504 * doc/snmp_agent.txt added
2506 2006-03-29 Christiaan Simons
2507 * inet.c, inet.h: Added platform byteswap support.
2508 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2509 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2513 2006-11-30 Christiaan Simons
2514 * dhcp.c: Fixed false triggers of request_timeout.
2516 2006-11-28 Christiaan Simons
2517 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2519 2006-10-11 Christiaan Simons
2520 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2521 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2522 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2523 identifier from 170 to 136 (bug #17574).
2525 2006-10-10 Christiaan Simons
2526 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2528 2006-08-17 Christiaan Simons
2529 * udp.c: Fixed bug #17200, added check for broadcast
2530 destinations for PCBs bound to a unicast address.
2532 2006-08-07 Christiaan Simons
2533 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2535 2006-06-27 Christiaan Simons
2536 * api_msg.c: Applied patch for cold case (bug #11135).
2537 In accept_function() ensure newconn->callback is always initialized.
2539 2006-06-15 Christiaan Simons
2540 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2541 facilitate printing of mem_size_t and u16_t statistics.
2543 2006-06-14 Christiaan Simons
2544 * api_msg.c: Applied patch #5146 to handle allocation failures
2545 in accept() by Kevin Lawson.
2547 2006-05-26 Christiaan Simons
2548 * api_lib.c: Removed conn->sem creation and destruction
2549 from netconn_write() and added sys_sem_new to netconn_new_*.
2553 2006-03-03 Christiaan Simons
2554 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2555 access and added pbuf_alloc() return value checks.
2557 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2558 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2559 now handled by the checksum routine properly.
2561 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2562 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2563 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2565 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2566 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2567 submitted by Mitrani Hiroshi.
2569 2005-12-15 Christiaan Simons
2570 * inet.c: Disabled the added summing routine to preserve code space.
2572 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2573 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2574 Added Curt McDowell's optimized checksumming routine for future
2575 inclusion. Need to create test case for unaliged, aligned, odd,
2576 even length combination of cases on various endianess machines.
2578 2005-12-09 Christiaan Simons
2579 * inet.c: Rewrote standard checksum routine in proper portable C.
2581 2005-11-25 Christiaan Simons
2582 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2583 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2584 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2586 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2587 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2588 routine by Peter Jolasson.
2589 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2591 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2592 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2593 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2595 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2596 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2598 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2599 * udp.c: UDP pcb->recv() was called even when it was NULL.
2603 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2604 * etharp.*: Disabled multiple packets on the ARP queue.
2605 This clashes with TCP queueing.
2607 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2608 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2609 Halved the ARP period, doubled the period counts.
2610 ETHARP_MAX_PENDING now should be at least 2. This prevents
2611 the counter from reaching 0 right away (which would allow
2612 too little time for ARP responses to be received).
2614 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2615 * dhcp.c: Decline messages were not multicast but unicast.
2616 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2617 Do not try hard to insert arbitrary packet's source address,
2618 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2619 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2620 querying an address will see it appear in the cache (DHCP could
2621 suffer from this when a server invalidly gave an in-use address.)
2622 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2623 comparing network addresses (identifiers), not the network masks
2625 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2626 IP address actually belongs to the network of the given interface.
2628 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2629 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2633 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2634 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2635 even if one is already pending, if the rcv_wnd is above a threshold
2636 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2637 delayed ACK in order to open the window if the stack is only receiving data.
2639 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2640 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2642 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2643 * etharp.c: Make sure the first pbuf queued on an ARP entry
2644 is properly ref counted.
2646 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2647 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2648 warnings about comparison.
2649 * pbuf.c: Stopped compiler complaining of empty if statement
2650 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2651 * tcp.c: Stopped compiler complaining of empty if statement
2652 when LWIP_DEBUGF() empty.
2653 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2654 * inet.c: Added a couple of casts to quiet the compiler.
2655 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2657 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2658 * inet.c: Made data types consistent in inet_ntoa().
2659 Added casts for return values of checksum routines, to pacify compiler.
2660 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2661 Small corrections to some debugging statements, to pacify compiler.
2663 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2664 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2665 * ethernetif.c Updated low_level_output() to match prototype for
2666 netif->linkoutput and changed low_level_input() similarly for consistency.
2667 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2668 of raw_recv() in raw.h and so avoid compiler error.
2669 * sockets.c: Added trivial (int) cast to keep compiler happier.
2670 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2676 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2677 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2678 your cc.h file defines this either 1 or 0. If non-defined,
2680 * .c: Added <string.h> and <errno.h> includes where used.
2681 * etharp.c: Made some array indices unsigned.
2683 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2684 * netif.*: Added netif_set_up()/down().
2685 * dhcp.c: Changes to restart program flow.
2687 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2688 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2689 single-pass lookup for different candidates. Should exploit locality.
2691 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2692 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2693 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2694 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2695 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2699 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2700 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2701 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2702 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2703 is to prefix the 14-bit Ethernet headers with two padding bytes.
2705 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2706 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2707 * etharp.c: Fixed the case where the packet that initiates the ARP request
2708 is not queued, and gets lost. Fixed the case where the packets destination
2709 address is already known; we now always queue the packet and perform an ARP
2716 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2717 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2718 * Fixed two possible NULL references in rare cases.
2724 * Fixed DHCP which did not include the IP address in DECLINE messages.
2728 * etharp.c has been hauled over a bit.
2734 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2735 * Packets sent from ARP queue had invalid source hardware address.
2739 * Pass-by ARP requests do now update the cache.
2743 * No longer dependent on ctype.h.
2744 * New socket options.
2745 * Raw IP pcb support.
2751 * Some debug formatters and casts fixed.
2752 * Numereous fixes in PPP.
2756 * DEBUGF now is LWIP_DEBUGF
2757 * pbuf_dechain() has been re-enabled.
2758 * Mentioned the changed use of CVS branches in README.
2764 * Fixed pool pbuf memory leak in pbuf_alloc().
2765 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2766 Reported by Savin Zlobec.
2768 * PBUF_POOL chains had their tot_len field not set for non-first
2769 pbufs. Fixed in pbuf_alloc().
2773 * Added PPP stack contributed by Marc Boucher
2777 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2779 * ARP queueuing now queues the latest packet instead of the first.
2780 This is the RFC recommended behaviour, but can be overridden in
2787 * TCP has been fixed to deal with the new use of the pbuf->ref
2790 * DHCP dhcp_inform() crash bug fixed.
2794 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2795 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2796 Implemented by David Haas.
2802 * The packet buffer implementation has been enhanced to support
2803 zero-copy and copy-on-demand for packet buffers which have their
2804 payloads in application-managed memory.
2805 Implemented by David Haas.
2807 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2808 if an outgoing packet can be directly sent on the link, or perform
2809 a copy-on-demand when necessary.
2811 The application can safely assume the packet is sent, and the RAM
2812 is available to the application directly after calling udp_send()
2813 or similar function.
2817 * ARP_QUEUEING should now correctly work for all cases, including
2819 Implemented by Leon Woestenberg.
2823 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2824 to a '0.0.0.0' IP address.
2826 * The packet buffer implementation is changed. The pbuf->ref counter
2827 meaning has changed, and several pbuf functions have been
2828 adapted accordingly.
2830 * netif drivers have to be changed to set the hardware address length field
2831 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2832 See the contrib/ports/c16x cs8900 driver as a driver example.
2834 * netif's have a dhcp field that must be initialized to NULL by the driver.
2835 See the contrib/ports/c16x cs8900 driver as a driver example.
2837 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2838 logged in CVS but have not been explained here.
2840 (0.5.3) Changes since version 0.5.2
2844 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2845 threads because it wasn't protected by semaphores.
2849 * struct ip_addr now packed.
2851 * The name of the time variable in arp.c has been changed to ctime
2852 to avoid conflicts with the time() function.
2854 (0.5.2) Changes since version 0.5.1
2858 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2862 * A bug in tcp_parseopt() could cause the stack to hang because of a
2863 malformed TCP option.
2865 * The address of new connections in the accept() function in the BSD
2866 socket library was not handled correctly.
2868 * pbuf_dechain() did not update the ->tot_len field of the tail.
2870 * Aborted TCP connections were not handled correctly in all
2875 * All protocol header structs are now packed.
2877 * The ->len field in the tcp_seg structure now counts the actual
2878 amount of data, and does not add one for SYN and FIN segments.
2880 (0.5.1) Changes since version 0.5.0
2884 * Possible to run as a user process under Linux.
2886 * Preliminary support for cross platform packed structs.
2888 * ARP timer now implemented.
2892 * TCP output queue length was badly initialized when opening
2895 * TCP delayed ACKs were not sent correctly.
2897 * Explicit initialization of BSS segment variables.
2899 * read() in BSD socket library could drop data.
2901 * Problems with memory alignment.
2903 * Situations when all TCP buffers were used could lead to
2906 * TCP MSS option wasn't parsed correctly.
2908 * Problems with UDP checksum calculation.
2910 * IP multicast address tests had endianess problems.
2912 * ARP requests had wrong destination hardware address.
2916 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2918 * A ->linkoutput() member was added to struct netif.
2920 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2922 * ntoh* macros are now null definitions for big endian CPUs.
2924 (0.5.0) Changes since version 0.4.2
2928 * Redesigned operating system emulation layer to make porting easier.
2930 * Better control over TCP output buffers.
2932 * Documenation added.
2936 * Locking issues in buffer management.
2938 * Bugfixes in the sequential API.
2940 * IP forwarding could cause memory leakage. This has been fixed.
2944 * Directory structure somewhat changed; the core/ tree has been
2947 (0.4.2) Changes since version 0.4.1
2951 * Experimental ARP implementation added.
2953 * Skeleton Ethernet driver added.
2955 * Experimental BSD socket API library added.
2959 * In very intense situations, memory leakage could occur. This has
2964 * Variables named "data" and "code" have been renamed in order to
2965 avoid name conflicts in certain compilers.
2967 * Variable++ have in appliciable cases been translated to ++variable
2968 since some compilers generate better code in the latter case.
2970 (0.4.1) Changes since version 0.4
2974 * TCP: Connection attempts time out earlier than data
2975 transmissions. Nagle algorithm implemented. Push flag set on the
2976 last segment in a burst.
2978 * UDP: experimental support for UDP-Lite extensions.
2982 * TCP: out of order segments were in some cases handled incorrectly,
2983 and this has now been fixed. Delayed acknowledgements was broken
2984 in 0.4, has now been fixed. Binding to an address that is in use
2985 now results in an error. Reset connections sometimes hung an
2986 application; this has been fixed.
2988 * Checksum calculation sometimes failed for chained pbufs with odd
2989 lengths. This has been fixed.
2991 * API: a lot of bug fixes in the API. The UDP API has been improved
2992 and tested. Error reporting and handling has been
2993 improved. Logical flaws and race conditions for incoming TCP
2994 connections has been found and removed.
2996 * Memory manager: alignment issues. Reallocating memory sometimes
2997 failed, this has been fixed.
2999 * Generic library: bcopy was flawed and has been fixed.
3003 * API: all datatypes has been changed from generic ones such as
3004 ints, to specified ones such as u16_t. Functions that return
3005 errors now have the correct type (err_t).
3007 * General: A lot of code cleaned up and debugging code removed. Many
3008 portability issues have been fixed.
3010 * The license was changed; the advertising clause was removed.
3014 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3015 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3018 (0.4) Changes since version 0.3.1
3020 * Memory management has been radically changed; instead of
3021 allocating memory from a shared heap, memory for objects that are
3022 rapidly allocated and deallocated is now kept in pools. Allocation
3023 and deallocation from those memory pools is very fast. The shared
3024 heap is still present but is used less frequently.
3026 * The memory, memory pool, and packet buffer subsystems now support
3027 4-, 2-, or 1-byte alignment.
3029 * "Out of memory" situations are handled in a more robust way.
3031 * Stack usage has been reduced.
3033 * Easier configuration of lwIP parameters such as memory usage,
3034 TTLs, statistics gathering, etc. All configuration parameters are
3035 now kept in a single header file "lwipopts.h".
3037 * The directory structure has been changed slightly so that all
3038 architecture specific files are kept under the src/arch
3041 * Error propagation has been improved, both in the protocol modules
3044 * The code for the RTXC architecture has been implemented, tested
3047 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3048 the Internet checksum modules.
3050 * Bugs related to porting between a 32-bit and a 16-bit architecture
3051 have been found and corrected.
3053 * The license has been changed slightly to conform more with the
3054 original BSD license, including the advertisement clause.
3056 (0.3.1) Changes since version 0.3
3058 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3059 RAM never returned the RAM when the pbuf was deallocated.
3061 * TCP congestion control, window updates and retransmissions did not
3062 work correctly. This has now been fixed.
3064 * Bugfixes in the API.
3066 (0.3) Changes since version 0.2
3068 * New and improved directory structure. All include files are now
3069 kept in a dedicated include/ directory.
3071 * The API now has proper error handling. A new function,
3072 netconn_err(), now returns an error code for the connection in
3075 * Improvements in the memory management subsystem. The system now
3076 keeps a pointer to the lowest free memory block. A new function,
3077 mem_malloc2() tries to allocate memory once, and if it fails tries
3078 to free some memory and retry the allocation.
3080 * Much testing has been done with limited memory
3081 configurations. lwIP now does a better job when overloaded.
3083 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3085 * Many bugfixes in the TCP code:
3087 - Fixed a bug in tcp_close().
3089 - The TCP receive window was incorrectly closed when out of
3090 sequence segments was received. This has been fixed.
3092 - Connections are now timed-out of the FIN-WAIT-2 state.
3094 - The initial congestion window could in some cases be too
3095 large. This has been fixed.
3097 - The retransmission queue could in some cases be screwed up. This
3100 - TCP RST flag now handled correctly.
3102 - Out of sequence data was in some cases never delivered to the
3103 application. This has been fixed.
3105 - Retransmitted segments now contain the correct acknowledgment
3106 number and advertised window.
3108 - TCP retransmission timeout backoffs are not correctly computed
3109 (ala BSD). After a number of retransmissions, TCP now gives up
3112 * TCP connections now are kept on three lists, one for active
3113 connections, one for listening connections, and one for
3114 connections that are in TIME-WAIT. This greatly speeds up the fast
3115 timeout processing for sending delayed ACKs.
3117 * TCP now provides proper feedback to the application when a
3118 connection has been successfully set up.
3120 * More comments have been added to the code. The code has also been
3121 somewhat cleaned up.
3123 (0.2) Initial public release.