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 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
47 2011-08-24: Simon Goldschmidt
48 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
50 2011-08-22: Simon Goldschmidt
51 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
52 merely prevents nagle from not transmitting fast after closing.)
54 2011-07-22: Simon Goldschmidt
55 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
56 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
57 lwip_send() sends as much as possible for non-blocking sockets
59 2011-07-22: Simon Goldschmidt
60 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
61 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
62 at regular intervals from main level.
64 2011-07-21: Simon Goldschmidt
65 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
66 sending an ARP request when an ARP entry is used in the last minute before
69 2011-07-04: Simon Goldschmidt
70 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
72 2011-06-26: Simon Goldschmidt
73 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
74 updating its documentation only.
76 2011-06-26: Simon Goldschmidt
77 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
80 2011-06-26: Simon Goldschmidt
81 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
89 2011-03-27: Simon Goldschmidt
90 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
91 calculate it in tcp_zero_window_probe (the only place where it was used).
93 2010-11-21: Simon Goldschmidt
94 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
97 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
98 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
99 IP_MULTICAST_LOOP at socket- and raw-API level.
101 2010-06-16: Simon Goldschmidt
102 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
103 link-layer-addressed UDP traffic to be received while a netif is down (just
104 like DHCP during configuration)
106 2010-05-22: Simon Goldschmidt
107 * many many files: bug #27352: removed packing from ip_addr_t, the packed
108 version is now only used in protocol headers. Added global storage for
109 current src/dest IP address while in input functions.
111 2010-05-16: Simon Goldschmidt
112 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
113 calculation (and use them throughout the stack where applicable)
115 2010-05-16: Simon Goldschmidt
116 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
117 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
119 2010-05-16: Simon Goldschmidt
120 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
121 MEMP pool instead of the heap
123 2010-05-13: Simon Goldschmidt
124 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
125 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
126 packets to more than one pcb.
128 2010-05-02: Simon Goldschmidt
129 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
130 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
132 2010-04-30: Simon Goldschmidt
133 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
134 take a precalculated checksum, added pbuf_fill_chksum() to copy data
135 into a pbuf and at the same time calculating the checksum for that data
137 2010-04-29: Simon Goldschmidt
138 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
139 2-byte-aligned IP addresses and MAC addresses
141 2010-04-28: Patch by Bill Auerbach
142 * ip.c: Inline generating IP checksum to save a function call
144 2010-04-14: Simon Goldschmidt
145 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
146 tcpip_thread processes messages or timeouts to implement a watchdog.
148 2010-03-28: Simon Goldschmidt
149 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
150 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
152 2010-03-27: Simon Goldschmidt
153 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
154 etharp_query to prevent unnecessary function calls (inspired by
157 2010-03-20: Simon Goldschmidt
158 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
159 since the linker cannot do this automatically to save space.
161 2010-03-20: Simon Goldschmidt
162 * opt.h, etharp.c/.h: Added support for static ARP table entries
164 2010-03-14: Simon Goldschmidt
165 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
166 when creating TCP segments, not when (re-)transmitting them.
168 2010-03-07: Simon Goldschmidt
169 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
170 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
171 This should speed up receiving data on sockets as the select code in
172 event_callback is only executed when select is waiting.
174 2010-03-06: Simon Goldschmidt
175 * tcp_out.c: task #7013 (Create option to have all packets delivered to
176 netif->output in one piece): Always copy to try to create single pbufs
179 2010-03-06: Simon Goldschmidt
180 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
181 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
182 for tcp netconns to receive pbufs, not netbufs; use that function
185 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
186 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
187 Work on tcp_enqueue: Don't waste memory when chaining segments,
188 added option TCP_OVERSIZE to prevent creating many small pbufs when
189 calling tcp_write with many small blocks of data. Instead, pbufs are
190 allocated larger than needed and the space is used for later calls to
193 2010-02-21: Simon Goldschmidt
194 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
197 2010-02-21: Simon Goldschmidt
198 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
199 implementation of tcp to make API usage cleare to application programmers
201 2010-02-14: Simon Goldschmidt/Stephane Lesage
202 * ip_addr.h: Improved some defines working on ip addresses, added faster
203 macro to copy addresses that cannot be NULL
205 2010-02-13: Simon Goldschmidt
206 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
207 blocking send operation)
209 2010-02-12: Simon Goldschmidt
210 * sockets.c/.h: Added a minimal version of posix fctl() to have a
211 standardised way to set O_NONBLOCK for nonblocking sockets.
213 2010-02-12: Simon Goldschmidt
214 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
215 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
216 and dhcp work with user-allocated structs instead of callin mem_malloc
218 2010-02-12: Simon Goldschmidt/Jeff Barber
219 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
220 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
222 2010-02-12: Simon Goldschmidt
223 * sys layer: task #10139 (Prefer statically allocated memory): converted
224 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
225 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
226 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
227 to let sys.h use binary semaphores instead of mutexes - as before)
229 2010-02-09: Simon Goldschmidt (Simon Kallweit)
230 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
231 (Restart system timeout handling)
233 2010-02-09: Simon Goldschmidt
234 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
235 netif.c) - loopif does not have to be created by the port any more,
236 just define LWIP_HAVE_LOOPIF to 1.
238 2010-02-08: Simon Goldschmidt
239 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
240 inet_ntoa_r/ipaddr_ntoa_r
242 2010-02-08: Simon Goldschmidt
243 * netif.h: Added netif_s/get_igmp_mac_filter() macros
245 2010-02-05: Simon Goldschmidt
246 * netif.h: Added function-like macros to get/set the hostname on a netif
248 2010-02-04: Simon Goldschmidt
249 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
250 make changing the actual implementation behind the typedef easier.
252 2010-02-01: Simon Goldschmidt
253 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
254 for allocating memory when getaddrinfo() is called.
256 2010-01-31: Simon Goldschmidt
257 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
258 them once instead of parsing for every option. This also removes
259 the need for mem_malloc from dhcp_recv and makes it possible to
260 correctly retrieve the BOOTP file.
262 2010-01-30: simon Goldschmidt
263 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
266 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
267 * api.h, api_msg.c, sockets.c: Added except set support in select
270 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
271 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
272 Add non-blocking support for connect (partly from patch #6860),
273 plus many cleanups in socket & netconn API.
275 2010-01-27: Simon Goldschmidt
276 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
277 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
279 2010-01-26: Simon Goldschmidt
280 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
282 2010-01-14: Simon Goldschmidt
283 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
284 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
286 2010-01-13: Simon Goldschmidt
287 * mem.c: The heap now may be moved to user-defined memory by defining
288 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
289 (patch #6966 and bug #26133)
291 2010-01-10: Simon Goldschmidt (Bill Auerbach)
292 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
295 2010-01-10: Simon Goldschmidt
296 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
297 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
299 2009-12-31: Simon Goldschmidt
300 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
301 added timers.c/.h: Separated timer implementation from semaphore/mbox
302 implementation, moved timer implementation to timers.c/.h, timers are
303 now only called from tcpip_thread or by explicitly checking them.
306 2009-12-27: Simon Goldschmidt
307 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
308 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
313 2011-04-20: Simon Goldschmidt
314 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
316 2011-04-13: Simon Goldschmidt
317 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
318 using ports in the IANA private/dynamic range (49152 through 65535).
320 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
321 * etharp.h/.c: Fixed broken VLAN support.
323 2011-03-27: Simon Goldschmidt
324 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
325 pcbs) by checking if the pcb was bound (local_port != 0).
327 2011-03-27: Simon Goldschmidt
328 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
330 2011-03-27: Simon Goldschmidt
331 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
332 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
334 2011-03-27: Simon Goldschmidt
335 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
336 is present never times out) by starting retransmission timer before checking
339 2011-03-22: Simon Goldschmidt
340 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
341 calling sio_read_abort() if the file descriptor is valid.
343 2011-03-14: Simon Goldschmidt
344 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
345 more than once can render a socket useless) since it mainly involves changing
346 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
348 2011-03-13: Simon Goldschmidt
349 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
350 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
351 use EALRADY instead of -1
353 2011-03-13: Simon Goldschmidt
354 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
355 connection has been aborted by err_tcp (since this is not a normal closing
358 2011-03-13: Simon Goldschmidt
359 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
360 with pcb->state != CLOSED
362 2011-02-17: Simon Goldschmidt
363 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
366 2011-02-17: Simon Goldschmidt
367 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
369 2011-01-24: Simon Goldschmidt
370 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
372 2010-12-02: Simon Goldschmidt
373 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
375 2010-11-23: Simon Goldschmidt
376 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
377 LWIP_SO_RCVBUF and ioctl/FIONREAD.
379 2010-11-23: Simon Goldschmidt
380 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
381 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
383 2010-11-23: Simon Goldschmidt
384 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
385 refusing 'refused_data' again.
387 2010-11-22: Simon Goldschmidt
388 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
389 after a successful nonblocking connection.
391 2010-11-22: Simon Goldschmidt
392 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
393 must be sent link-local
395 2010-11-22: Simon Goldschmidt
396 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
399 2010-11-20: Simon Goldschmidt
400 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
402 2010-11-20: Simon Goldschmidt
403 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
404 resemble other stacks.
406 2010-11-20: Simon Goldschmidt
407 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
408 no-copy TCP writes will never succeed.
410 2010-11-20: Simon Goldschmidt
411 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
412 not match documentation: return ERR_ARG instead of ERR_VAL if not
413 initialized or wrong argument.
415 2010-10-20: Simon Goldschmidt
416 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
418 2010-10-05: Simon Goldschmidt
419 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
420 replugging the network cable after an AutoIP address was assigned.
422 2010-08-10: Simon Goldschmidt
423 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
425 2010-08-03: Simon Goldschmidt
426 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
428 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
429 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
430 endian architectures)
432 2010-07-28: Simon Goldschmidt
433 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
436 2010-07-27: Simon Goldschmidt
437 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
438 harm but never did anything
440 2010-07-21: Simon Goldschmidt
441 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
444 2010-07-16: Kieran Mansley
445 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
447 2010-07-10: Simon Goldschmidt
448 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
450 2010-06-30: Simon Goldschmidt
451 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
454 2010-06-28: Kieran Mansley
455 * timers.c remove unportable printing of C function pointers
457 2010-06-24: Simon Goldschmidt
458 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
459 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
461 2010-06-24: Simon Goldschmidt
462 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
463 implemented shutdown at socket level.
465 2010-06-21: Simon Goldschmidt
466 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
467 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
468 custom pbufs that reference other (original) pbufs. Additionally set
469 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
471 2010-06-15: Simon Goldschmidt
472 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
474 2010-06-14: Simon Goldschmidt
475 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
477 2010-06-12: Simon Goldschmidt
478 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
481 2010-05-17: Simon Goldschmidt
482 * netdb.c: Correctly NULL-terminate h_addr_list
484 2010-05-16: Simon Goldschmidt
485 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
486 "symbol already defined" i.e. when linking to winsock
488 2010-05-05: Simon Goldschmidt
489 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
492 2010-04-21: Simon Goldschmidt
493 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
496 2010-03-28: Luca Ceresoli
497 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
499 2010-03-27: Luca Ceresoli
500 * mib2.c: patch #7130: remove meaningless const qualifiers
502 2010-03-26: Simon Goldschmidt
503 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
505 2010-03-26: Simon Goldschmidt
506 * various files: Fixed compiling with different options disabled (TCP/UDP),
507 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
509 2010-03-25: Simon Goldschmidt
510 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
512 2010-03-25: Simon Goldschmidt
513 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
514 overrunning our rcv_wnd in ooseq case.
516 2010-03-22: Simon Goldschmidt
517 * tcp.c: tcp_listen() did not copy the pcb's prio.
519 2010-03-19: Simon Goldschmidt
520 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
522 2010-03-14: Simon Goldschmidt
523 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
524 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
525 and basing PBUF_LINK_HLEN on it.
527 2010-03-08: Simon Goldschmidt
528 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
529 when assiging routable address): when checking incoming packets and
530 aborting existing connection on address change, filter out link-local
533 2010-03-06: Simon Goldschmidt
534 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
536 2010-03-06: Simon Goldschmidt
537 * ipv4/ip.c: Don't try to forward link-local addresses
539 2010-03-06: Simon Goldschmidt
540 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
543 2010-03-05: Simon Goldschmidt
544 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
547 2010-03-05: Simon Goldschmidt
548 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
549 into multiple calls to tcp_write.
551 2010-02-21: Simon Goldschmidt
552 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
553 the implementation of DNS_USES_STATIC_BUF==1)
555 2010-02-20: Simon Goldschmidt
556 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
557 close() vs. shutdown(). Now the application does not get any more
558 recv callbacks after calling tcp_close(). Added tcp_shutdown().
560 2010-02-19: Simon Goldschmidt
561 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
562 confusion with realloc()
564 2010-02-15: Simon Goldschmidt/Stephane Lesage
565 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
568 2010-02-14: Simon Goldschmidt
569 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
570 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
571 admin-status of a netif are up
573 2010-02-14: Simon Goldschmidt
574 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
575 reception and is not really necessary
577 2010-02-14: Simon Goldschmidt
578 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
579 request was directed as us (RFC 826, Packet Reception), otherwise
580 only update existing entries; internalized some functions
582 2010-02-14: Simon Goldschmidt
583 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
584 disabled on netif used for PPPoE) by adding a new netif flag
585 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
586 device but prevents usage of ARP (so that ethernet_input can be used
589 2010-02-12: Simon Goldschmidt
590 * netif.c: netif_set_link_up/down: only do something if the link state
593 2010-02-12: Simon Goldschmidt/Stephane Lesage
594 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
597 2010-02-12: Simon Goldschmidt
598 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
600 2010-02-09: Simon Goldschmidt
601 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
602 (recv() makes receive window update for data that wasn't received by
605 2010-02-09: Simon Goldschmidt/Stephane Lesage
606 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
607 or any netconn_recv() error)
609 2010-02-09: Simon Goldschmidt
610 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
612 2010-02-09: Simon Goldschmidt
613 * netif.c: For loopback packets, adjust the stats- and snmp-counters
614 for the loopback netif.
616 2010-02-08: Simon Goldschmidt
617 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
618 since they are not used anywhere else.
620 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
621 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
622 (patch from bug #28798)
624 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
625 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
626 another bug when LWIP_RAND() returns zero.
628 2010-02-04: Simon Goldschmidt
629 * nearly every file: Use macros defined in ip_addr.h (some of them new)
630 to work with IP addresses (preparation for bug #27352 - Change ip_addr
631 from struct to typedef (u32_t) - and better code).
633 2010-01-31: Simon Goldschmidt
634 * netif.c: Don't call the link-callback from netif_set_up/down() since
635 this invalidly retriggers DHCP.
637 2010-01-29: Simon Goldschmidt
638 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
639 portability file inet.h and its contents from the stack: moved htonX-
640 functions to def.h (and the new def.c - they are not ipv4 dependent),
641 let inet.h depend on ip_addr.h and not the other way round.
642 This fixes bug #28732.
644 2010-01-28: Kieran Mansley
645 * tcp.c: Ensure ssthresh >= 2*MSS
647 2010-01-27: Simon Goldschmidt
648 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
649 callback can lead to accessing unallocated memory. As a consequence,
650 ERR_ABRT means the application has called tcp_abort()!
652 2010-01-25: Simon Goldschmidt
653 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
654 not implemented in SNMP): write-only or not-accessible are still
655 returned by getnext (though not by get)
657 2010-01-24: Simon Goldschmidt
658 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
659 not use reserved C/C++ keywords
661 2010-01-23: Simon Goldschmidt
662 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
665 2010-01-21: Simon Goldschmidt
666 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
667 if tcp_enqueue fails) both in raw- and netconn-API
669 2010-01-19: Simon Goldschmidt
670 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
672 2010-01-18: Iordan Neshev/Simon Goldschmidt
673 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
674 bugfix backports from 2.4.x.
676 2010-01-18: Simon Goldschmidt
677 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
679 2010-01-17: Simon Goldschmidt
680 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
681 task #10102: "netconn: clean up conn->err threading issues" by adding
682 error return value to struct api_msg_msg
684 2010-01-17: Simon Goldschmidt
685 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
686 to return err_t (bugs #27709 and #28087)
688 2010-01-14: Simon Goldschmidt
689 * ...: Use typedef for function prototypes throughout the stack.
691 2010-01-13: Simon Goldschmidt
692 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
693 window = 0) by correctly draining recvmbox/acceptmbox
695 2010-01-11: Simon Goldschmidt
696 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
697 erroneous callbacks) by copying the code from recent pppd
699 2010-01-10: Simon Goldschmidt
700 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
702 2010-01-10: Simon Goldschmidt
703 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
705 2010-01-08: Simon Goldschmidt
706 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
708 2010-01-08: Simon Goldschmidt
709 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
710 passed to dns_local_addhost() might be volatile
712 2010-01-07: Simon Goldschmidt
713 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
715 2010-01-06: Simon Goldschmidt
716 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
718 2009-12-31: Simon Goldschmidt
719 * many ppp files: Reorganised PPP source code from ucip structure to pppd
720 structure to easily compare our code against the pppd code (around v2.3.1)
722 2009-12-27: Simon Goldschmidt
723 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
731 2009-10-27 Simon Goldschmidt/Stephan Lesage
732 * netifapi.c/.h: Added netifapi_netif_set_addr()
734 2009-10-07 Simon Goldschmidt/Fabian Koch
735 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
736 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
738 2009-08-26 Simon Goldschmidt/Simon Kallweit
739 * slipif.c/.h: bug #26397: SLIP polling support
741 2009-08-25 Simon Goldschmidt
742 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
743 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
745 2009-08-25 Simon Goldschmidt
746 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
748 2009-08-24 Jakob Stoklund Olesen
749 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
750 to netif_set_link_up().
752 2009-08-23 Simon Goldschmidt
753 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
754 to a human-readable string.
758 2009-12-24: Kieran Mansley
759 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
762 2009-12-06: Simon Goldschmidt
763 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
764 be statically allocated (like in ucip)
766 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
767 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
769 2009-12-03: Simon Goldschmidt
770 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
771 could have non-zero length
773 2009-12-02: Simon Goldschmidt
774 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
775 tcp_input_pcb until after calling the pcb's callbacks
777 2009-11-29: Simon Goldschmidt
778 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
779 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
781 2009-11-29: Simon Goldschmidt
782 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
783 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
785 2009-11-26: Simon Goldschmidt
786 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
789 2009-11-26: Simon Goldschmidt
790 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
791 algorithm at PCB level
793 2009-11-22: Simon Goldschmidt
794 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
796 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
797 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
798 reusing time-wait pcb
800 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
801 * sockets.c: Fixed bug #28062: Data received directly after accepting
802 does not wake up select
804 2009-11-11: Simon Goldschmidt
805 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
807 2009-10-30: Simon Goldschmidt
808 * opt.h: Increased default value for TCP_MSS to 536, updated default
809 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
811 2009-10-28: Kieran Mansley
812 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
813 to follow algorithm from TCP/IP Illustrated
815 2009-10-27: Kieran Mansley
816 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
818 2009-10-25: Simon Goldschmidt
819 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
820 pcb->recv is NULL to keep rcv_wnd correct)
822 2009-10-25: Simon Goldschmidt
823 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
825 2009-10-23: Simon Goldschmidt (David Empson)
826 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
828 2009-10-21: Simon Goldschmidt
829 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
830 trailing 1 byte len (SYN/FIN)
832 2009-10-21: Simon Goldschmidt
833 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
835 2009-10-19: Simon Goldschmidt
836 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
837 conditional code to assert where applicable), check pbuf length before
838 testing for valid reply
840 2009-10-19: Simon Goldschmidt
841 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
842 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
844 2009-10-16: Simon Goldschmidt
845 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
846 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
849 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
850 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
852 2009-10-15: Simon Goldschmidt
853 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
856 2009-10-15: Simon Goldschmidt
857 * autoip.c: Fixed bug #27704: autoip starts with wrong address
858 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
859 of network byte order
861 2009-10-11 Simon Goldschmidt (Jörg Kesten)
862 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
863 which are not consecutive when retransmitting unacked segments
865 2009-10-09 Simon Goldschmidt
866 * opt.h: Fixed default values of some stats to only be enabled if used
867 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
869 2009-08-30 Simon Goldschmidt
870 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
871 function" by checking for loopback before calling ip_frag
873 2009-08-25 Simon Goldschmidt
874 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
876 2009-08-23 Simon Goldschmidt
877 * ppp.c: bug #27078: Possible memory leak in pppInit()
879 2009-08-23 Simon Goldschmidt
880 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
883 2009-08-23 Simon Goldschmidt
884 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
885 Fixed wrong parenthesis, added check in init.c
887 2009-08-23 Simon Goldschmidt
888 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
890 2009-08-23 Simon Goldschmidt
891 * many ppp files: bug #27267: Added include to string.h where needed
893 2009-08-23 Simon Goldschmidt
894 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
901 2009-05-10 Simon Goldschmidt
902 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
903 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
904 one pbuf to help MACs that don't support scatter-gather DMA.
906 2009-05-09 Simon Goldschmidt
907 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
908 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
910 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
911 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
912 extended info about the currently received packet.
914 2009-04-27 Simon Goldschmidt
915 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
917 2009-04-25 Simon Goldschmidt
918 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
919 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
921 2009-04-21 Simon Goldschmidt
922 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
923 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
924 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
925 as an external function for lookup.
927 2009-04-15 Simon Goldschmidt
928 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
930 2009-03-31 Kieran Mansley
931 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
932 TCP timestamp options, off by default. Rework tcp_enqueue() to
933 take option flags rather than specified option data
935 2009-02-18 Simon Goldschmidt
936 * cc.h: Added printf formatter for size_t: SZT_F
938 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
939 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
942 2009-02-12 Simon Goldschmidt
943 * init.h: Added LWIP_VERSION to get the current version of the stack
945 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
946 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
947 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
950 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
951 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
952 is only used by UDPLITE at present, so conditionalise it.
954 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
955 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
956 "seed" address. This should reduce AUTOIP conflicts if
957 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
959 2008-10-02 Jonathan Larmour and Rishi Khan
960 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
963 2008-06-30 Simon Goldschmidt
964 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
965 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
966 mem_free to run between mem_malloc iterations. Added illegal counter for
969 2008-06-27 Simon Goldschmidt
970 * stats.h/.c, some other files: patch #6483: stats module improvement:
971 Added defines to display each module's statistic individually, added stats
972 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
974 2008-06-17 Simon Goldschmidt
975 * err.h: patch #6459: Made err_t overridable to use a more efficient type
976 (define LWIP_ERR_T in cc.h)
978 2008-06-17 Simon Goldschmidt
979 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
982 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
983 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
984 modified version of patch # 6370: Moved loopif code to netif.c so that
985 loopback traffic is supported on all netifs (all local IPs).
986 Added option to limit loopback packets for each netifs.
990 2009-08-12 Kieran Mansley
991 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
992 out of window or out of order properly
994 2009-08-12 Kieran Mansley
995 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
997 2009-07-28 Simon Goldschmidt
998 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1000 2009-07-27 Kieran Mansley
1001 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1003 2009-07-09 Kieran Mansley
1004 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1005 recv_avail and don't increment counters until message successfully
1008 2009-06-25 Kieran Mansley
1009 * api_msg.c api.h: BUG26722: initialise netconn write variables
1012 2009-06-25 Kieran Mansley
1013 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1015 2009-06-25 Kieran Mansley
1016 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1017 simultaneous close behaviour, and make snd_nxt have the same meaning
1020 2009-05-12 Simon Goldschmidt
1021 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1022 arp_table / uses etharp_query" by adding etharp_gratuitous()
1024 2009-05-12 Simon Goldschmidt
1025 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1026 to the IP header (used by igmp_ip_output_if)
1028 2009-05-06 Simon Goldschmidt
1029 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1030 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1032 2009-05-05 Simon Goldschmidt
1033 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1036 2009-05-04 Simon Goldschmidt
1037 * init.c: snmp was not initialized in lwip_init()
1039 2009-05-04 Frédéric Bernon
1040 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1042 2009-05-03 Simon Goldschmidt
1043 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1044 (and unsent->next == NULL)
1046 2009-05-02 Simon Goldschmidt
1047 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1048 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1050 2009-05-02 Simon Goldschmidt
1051 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1053 2009-05-01 Simon Goldschmidt
1054 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1056 2009-05-01 Simon Goldschmidt
1057 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1059 2009-04-29 Frédéric Bernon
1060 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1061 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1062 of broadcast packets even when this option wasn't set. Port maintainers
1063 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1064 If you want this option also filter broadcast on recv operations, you also
1065 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1067 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1068 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1069 DHCP/AUTOIP cooperation
1071 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1072 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1073 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1074 right place in tcp_output and tcp_rexmit).
1076 2009-04-25 Simon Goldschmidt
1077 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1078 when debugging": memp_sizes contained the wrong sizes (including sanity
1079 regions); memp pools for MEM_USE_POOLS were too small
1081 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1082 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1083 behavior, with with ip address string not ended by a '\0', a space or a
1086 2009-04-19 Simon Goldschmidt
1087 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1088 pcb->err is called, not pcb->connected (with an error code).
1090 2009-04-19 Simon Goldschmidt
1091 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1092 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1094 2009-04-19 Simon Goldschmidt
1095 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1096 in the header pbuf, not the data pbuf)
1098 2009-04-18 Simon Goldschmidt
1099 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1101 2009-04-15 Simon Goldschmidt
1102 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1104 2009-04-15 Simon Goldschmidt
1105 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1107 2009-04-15 Simon Goldschmidt
1108 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1109 ip_hinted_output() (for smaller code mainly)
1111 2009-04-15 Simon Goldschmidt
1112 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1114 2009-04-15 Simon Goldschmidt
1115 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1116 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1117 is big enough in dhcp_start
1119 2009-04-15 Simon Goldschmidt
1120 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1122 2009-04-15 Simon Goldschmidt
1123 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1125 2009-04-15 Simon Goldschmidt
1126 * sockets.c: bug #26121: set_errno can be overridden
1128 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1129 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1132 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1133 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1136 2009-03-31 Kieran Mansley
1137 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1138 updates are calculated and sent (BUG20515)
1140 * tcp_in.c: cope with SYN packets received during established states,
1141 and retransmission of initial SYN.
1143 * tcp_out.c: set push bit correctly when tcp segments are merged
1145 2009-03-27 Kieran Mansley
1146 * tcp_out.c set window correctly on probes (correcting change made
1149 2009-03-26 Kieran Mansley
1150 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1151 connections where no reset required (bug #25622)
1153 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1156 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1157 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1158 too small depending on MEM_ALIGNMENT
1160 2009-02-16 Simon Goldschmidt
1161 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1162 converted size argument of netconn_write to 'size_t'
1164 2009-02-16 Simon Goldschmidt
1165 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1166 by moving accept callback function pointer to TCP_PCB_COMMON
1168 2009-02-12 Simon Goldschmidt
1169 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1172 2009-02-11 Simon Goldschmidt
1173 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1175 2009-02-11 Simon Goldschmidt
1176 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1177 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1179 2009-02-10 Simon Goldschmidt
1180 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1181 Accepts_pending is decrease on a corresponding listen pcb when a connection
1182 in state SYN_RCVD is close.
1184 2009-01-28 Jonathan Larmour
1185 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1188 2008-12-19 Simon Goldschmidt
1189 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1191 2008-12-10 Tamas Somogyi, Frédéric Bernon
1192 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1193 port uses deleted netbuf.
1195 2008-10-18 Simon Goldschmidt
1196 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1199 2008-10-15 Simon Goldschmidt
1200 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1201 by packing the struct ip_reass_helper.
1203 2008-10-03 David Woodhouse, Jonathan Larmour
1204 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1206 2008-10-02 Jonathan Larmour
1207 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1208 padding is included.
1210 2008-09-30 Jonathan Larmour
1211 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1212 assertion check that addrlen isn't NULL.
1214 2008-09-30 Jonathan Larmour
1215 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1217 2008-08-26 Simon Goldschmidt
1218 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1219 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1221 2008-08-14 Simon Goldschmidt
1222 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1223 tcp_close returns != ERR_OK)
1225 2008-07-08 Frédéric Bernon
1226 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1227 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1229 2008-06-24 Jonathan Larmour
1230 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1231 if tcp_seg_copy fails.
1233 2008-06-17 Simon Goldschmidt
1234 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1235 and created defines for swapping bytes and folding u32 to u16.
1237 2008-05-30 Kieran Mansley
1238 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1239 rather than rcv_ann_wnd when deciding if packets are in-window.
1240 Contributed by <arasmussen@consultant.datasys.swri.edu>
1242 2008-05-30 Kieran Mansley
1243 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1244 passing as function pointers when MEM_LIBC_MALLOC is defined.
1246 2008-05-09 Jonathan Larmour
1247 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1248 stop it being treated as a fatal error.
1250 2008-04-15 Simon Goldschmidt
1251 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1254 2008-03-27 Simon Goldschmidt
1255 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1256 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1257 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1258 or heap memory from interrupt context
1260 2008-03-26 Simon Goldschmidt
1261 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1262 host sent a zero mss as TCP option.
1269 2008-03-10 Jonathan Larmour
1270 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1271 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1273 2008-01-22 Frédéric Bernon
1274 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1275 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1277 2008-01-14 Frédéric Bernon
1278 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1279 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1280 tcp_recv callback (see rawapi.txt).
1282 2008-01-14 Frédéric Bernon, Marc Chaland
1283 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1285 2008-01-12 Frédéric Bernon
1286 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1287 netconn::sem per netconn::op_completed like suggested for the task #7490
1288 "Add return value to sys_mbox_post".
1290 2008-01-12 Frédéric Bernon
1291 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1292 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1293 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1295 2008-01-10 Frédéric Bernon
1296 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1297 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1298 "blocking" ("block" parameter = 1).
1300 2008-01-10 Frédéric Bernon
1301 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1302 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1303 "Add return value to sys_mbox_post".
1305 2008-01-05 Frédéric Bernon
1306 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1307 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1308 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1309 indicate the number of pointers query by the mailbox. There is three defines
1310 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1311 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1312 parameter in your implementation, but to ignore it to keep the previous behavior.
1313 The new sys_mbox_trypost function return a value to know if the mailbox is
1314 full or if the message is posted. Take a look to sys_arch.txt for more details.
1315 This new function is used in tcpip_input (so, can be called in an interrupt
1316 context since the function is not blocking), and in recv_udp and recv_raw.
1318 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1319 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1320 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1321 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1322 documentation in the rawapi.txt file.
1324 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1325 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1327 2007-12-31 Frédéric Bernon, Luca Ceresoli
1328 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1329 in autoip". The change in etharp_raw could be removed, since all calls to
1330 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1331 wrong in the future.
1333 2007-12-30 Frédéric Bernon, Tom Evans
1334 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1335 Filtering" reported by Tom Evans.
1337 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1338 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1339 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1340 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1341 keep accepting new connections.
1343 2007-12-13 Frédéric Bernon
1344 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1345 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1347 2007-12-12 Frédéric Bernon
1348 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1349 are the one which have ram usage.
1351 2007-12-05 Frédéric Bernon
1352 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1353 set of variables (=0) or a local one (=1). In this last case, your port should
1354 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1355 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1357 2007-12-03 Simon Goldschmidt
1358 * ip.c: ip_input: check if a packet is for inp first before checking all other
1359 netifs on netif_list (speeds up packet receiving in most cases)
1361 2007-11-30 Simon Goldschmidt
1362 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1363 UDP: move a (connected) pcb selected for input to the front of the list of
1364 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1367 2007-11-28 Simon Goldschmidt
1368 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1370 2007-11-25 Simon Goldschmidt
1371 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1374 2007-11-24 Simon Goldschmidt
1375 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1376 to the new file netdb.c; included lwip_getaddrinfo.
1378 2007-11-21 Simon Goldschmidt
1379 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1380 based on the MTU of the netif used to send. Enabled by default. Disable by
1381 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1383 2007-11-19 Frédéric Bernon
1384 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1385 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1386 copy dns payload to parse the response), return an error if there is no place
1387 for a new query, and fix some minor problems.
1389 2007-11-16 Simon Goldschmidt
1390 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1391 removed files: core/inet.c, core/inet6.c
1392 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1393 inet and chksum part; changed includes in all lwIP files as appropriate
1395 2007-11-16 Simon Goldschmidt
1396 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1397 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1398 (gethostbyname/gethostbyname_r).
1400 2007-11-15 Jim Pettinato, Frédéric Bernon
1401 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1402 requests with RAW api interface. Initialization is done in lwip_init() with
1403 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1404 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1405 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1406 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1407 list with points to improve.
1409 2007-11-06 Simon Goldschmidt
1410 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1411 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1412 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1414 2007-11-06 Simon Goldschmidt
1415 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1416 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1417 implementation from netconn api applications.
1419 2007-11-03 Frédéric Bernon
1420 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1421 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1422 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1423 it. This is a first release which have to be improve for TCP. Note it used the
1424 netconn::recv_avail which need to be more "thread-safe" (note there is already
1425 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1427 2007-11-01 Frédéric Bernon, Marc Chaland
1428 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1429 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1430 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1431 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1432 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1434 2007-10-24 Frédéric Bernon
1435 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1436 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1437 some code (like we have talk in "patch #5919 : Create compile switch to remove
1438 select code"), but it could be done later.
1440 2007-10-08 Simon Goldschmidt
1441 * many files: Changed initialization: many init functions are not needed any
1442 more since we now rely on the compiler initializing global and static
1445 2007-10-06 Simon Goldschmidt
1446 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1447 to enqueue the received pbufs so that multiple packets can be reassembled
1448 simultaneously and no static reassembly buffer is needed.
1450 2007-10-05 Simon Goldschmidt
1451 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1452 all netifs (or ports) can use it.
1454 2007-10-05 Frédéric Bernon
1455 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1456 common function to reduce a little bit the footprint (for all functions using
1457 only the "netif" parameter).
1459 2007-10-03 Frédéric Bernon
1460 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1461 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1462 a little bit the footprint (for all functions using only the "netif" parameter).
1464 2007-09-15 Frédéric Bernon
1465 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1466 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1467 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1468 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1470 2007-09-10 Frédéric Bernon
1471 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1472 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1473 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1474 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1475 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1476 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1477 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1478 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1479 when it's queried (any direct call to "sysuptime" is changed by a call to
1480 snmp_get_sysuptime).
1482 2007-09-09 Frédéric Bernon, Bill Florac
1483 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1484 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1485 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1486 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1487 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1488 the next query message to receive the matching multicast streams).
1490 2007-09-08 Frédéric Bernon
1491 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1492 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1493 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1494 Enable to access to these fields with LWIP_TCP=0.
1496 2007-09-05 Frédéric Bernon
1497 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1498 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1499 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1500 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1501 help to reduce footprint, and to reduce "visibility" on the Internet.
1503 2007-09-05 Frédéric Bernon, Bill Florac
1504 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1505 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1506 parameters have to be provided: a task name, and a task stack size. For this
1507 one, since it's platform dependant, you could define the best one for you in
1508 your lwipopts.h. For port maintainers, you can just add these new parameters
1509 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1512 2007-09-05 Frédéric Bernon
1513 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1514 inside init.c for task #7142 "Sanity check user-configurable values".
1516 2007-09-04 Frédéric Bernon, Bill Florac
1517 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1518 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1519 value). It will avoid potential fragmentation problems, use a counter to know
1520 how many times a group is used on an netif, and free it when all applications
1521 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1522 check if LWIP_IGMP!=0).
1524 2007-09-03 Frédéric Bernon
1525 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1526 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1527 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1528 and/or the "interface" field (for netconn layer), for join/leave operations.
1529 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1530 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1532 2007-08-30 Frédéric Bernon
1533 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1534 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1535 with other API (application based on raw API, or future "socket2" API). Ports
1536 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1538 2007-08-30 Frédéric Bernon, Jonathan Larmour
1539 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1540 user-configurable values".
1542 2007-08-29 Frédéric Bernon
1543 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1544 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1545 spirit than the others modules. Modify some IGMP debug traces.
1547 2007-08-29 Frédéric Bernon
1548 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1549 Add lwip_init function to regroup all modules initializations, and to provide
1550 a place to add code for task #7142 "Sanity check user-configurable values".
1551 Ports maintainers should remove direct initializations calls from their code,
1552 and add init.c in their makefiles. Note that lwip_init() function is called
1553 inside tcpip_init, but can also be used by raw api users since all calls are
1554 disabled when matching options are disabled. Also note that their is new options
1555 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1557 2007-08-26 Marc Boucher
1558 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1559 since they can under certain circumstances be called with an invalid conn
1560 pointer after the connection has been closed (and conn has been freed).
1562 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1563 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1564 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1566 2007-08-22 Frédéric Bernon
1567 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1568 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1570 2007-08-22 Frédéric Bernon
1571 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1572 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1573 name is tcpip_input (we keep the name of 1.2.0 function).
1575 2007-08-17 Jared Grubb
1576 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1577 settings into new memp_std.h and optional user file lwippools.h. This adds
1578 more dynamic mempools, and allows the user to create an arbitrary number of
1579 mempools for mem_malloc.
1581 2007-08-16 Marc Boucher
1582 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1583 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1584 close the connection.
1586 2007-08-16 Marc Boucher
1587 * sockets.c: lwip_accept(): check netconn_peer() error return.
1589 2007-08-16 Marc Boucher
1590 * mem.c, mem.h: Added mem_calloc().
1592 2007-08-16 Marc Boucher
1593 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1594 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1595 and starving other message types.
1596 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1598 2007-08-16 Marc Boucher
1599 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1600 type and flgs (later renamed to flags).
1601 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1602 Improved lwip_recvfrom(). TCP push now propagated.
1604 2007-08-16 Marc Boucher
1605 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1608 2007-08-16 Marc Boucher
1609 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1610 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1611 Added PPPoE support and various PPP improvements.
1613 2007-07-25 Simon Goldschmidt
1614 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1615 making netbuf_copy_partial use this function.
1617 2007-07-25 Simon Goldschmidt
1618 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1619 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1622 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1623 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1624 a link callback in the netif struct, and functions to handle it. Be carefull
1625 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1626 if you want to be sure to be compatible with future changes...
1628 2007-06-30 Frédéric Bernon
1629 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1631 2007-06-21 Simon Goldschmidt
1632 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1633 LWIP_AUTOIP =0 and =1 to remove redundant code.
1635 2007-06-21 Simon Goldschmidt
1636 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1637 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1638 heap. This both prevents memory fragmentation and gives a higher speed
1639 at the cost of more memory consumption. Turned off by default.
1641 2007-06-21 Simon Goldschmidt
1642 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1643 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1644 int to be able to send a bigger buffer than 64K with one time (mainly
1645 used from lwip_send).
1647 2007-06-21 Simon Goldschmidt
1648 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1649 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1651 2007-06-21 Simon Goldschmidt
1652 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1653 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1654 changes on low memory or empty send-buffer.
1656 2007-06-18 Simon Goldschmidt
1657 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1658 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1659 used for ethernet and struct eth_addr already had a defined length of 6).
1661 2007-06-17 Simon Goldschmidt
1662 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1663 to disable UDP checksum generation on transmit.
1665 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1666 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1667 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1668 this macro to check "conn" parameter in api_msg.c functions.
1670 2007-06-11 Simon Goldschmidt
1671 * sockets.c, sockets.h: Added UDP lite support for sockets
1673 2007-06-10 Simon Goldschmidt
1674 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1675 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1678 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1679 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1680 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1681 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1682 (see TODO mark in the source code).
1684 2007-06-09 Simon Goldschmidt
1685 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1686 etharp_output() to match netif->output so etharp_output() can be used
1687 directly as netif->output to save one function call.
1689 2007-06-08 Simon Goldschmidt
1690 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1691 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1692 added initialization of those to ethernetif, slipif and loopif.
1694 2007-05-18 Simon Goldschmidt
1695 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1696 (defaulting to off for now) that can be set to 0 to send fragmented
1697 packets by passing PBUF_REFs down the stack.
1699 2007-05-23 Frédéric Bernon
1700 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1701 connections, such present in patch #5959.
1703 2007-05-23 Frédéric Bernon
1704 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1705 code in only one part...
1707 2007-05-18 Simon Goldschmidt
1708 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1709 elements to overflow. This is achieved by adding some bytes before and after
1710 each pool element (increasing their size, of course), filling them with a
1711 prominent value and checking them on freeing the element.
1712 Set it to 2 to also check every element in every pool each time memp_malloc()
1713 or memp_free() is called (slower but more helpful).
1715 2007-05-10 Simon Goldschmidt
1716 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1717 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1720 2007-05-11 Frédéric Bernon
1721 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1722 Include a function pointer instead of a table index in the message to reduce
1723 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1724 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1726 2007-05-10 Simon Goldschmidt
1727 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1728 \ extern "C" {' in all header files. Now you can write your application using
1729 the lwIP stack in C++ and simply #include the core files. Note I have left
1730 out the netif/ppp/*h header files for now, since I don't know which files are
1731 included by applications and which are for internal use only.
1733 2007-05-09 Simon Goldschmidt
1734 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1735 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1736 situations where some compilers might inline the copy and save a function
1737 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1739 2007-05-08 Simon Goldschmidt
1740 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1741 to be overriden in case the C-library malloc implementation is not protected
1742 against concurrent access.
1744 2007-05-04 Simon Goldschmidt (Atte Kojo)
1745 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1746 multiple packets to the same host.
1748 2007-05-04 Frédéric Bernon, Jonathan Larmour
1749 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1750 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1751 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1752 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1753 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1754 these fields are now renamed "addr" & "port".
1756 2007-04-11 Jonathan Larmour
1757 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1758 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1759 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1760 by the port in sys_arch.h if desired.
1762 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1763 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1764 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1765 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1767 2007-04-05 Frédéric Bernon
1768 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1770 2007-04-04 Simon Goldschmidt
1771 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1772 use this for and architecture-independent form to tell the compiler you intentionally
1773 are not using this variable. Can be overriden in cc.h.
1775 2007-03-28 Frédéric Bernon
1776 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1777 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1778 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1779 It will be used by DHCP to register a client hostname, but can also be use when you call
1782 2007-03-28 Frédéric Bernon
1783 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1784 initialize a network interface's flag with. It tell this interface is an ethernet
1785 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1786 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1788 2007-03-26 Frédéric Bernon, Jonathan Larmour
1789 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1790 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1791 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1792 is done in tcpip_init function.
1794 2007-03-22 Frédéric Bernon
1795 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1796 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1797 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1798 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1799 but never used. Fix msg_in.c with the correct #if test for a stat display.
1801 2007-03-21 Kieran Mansley
1802 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1803 Provides callback on netif up/down state change.
1805 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1806 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1807 ip.c, netif.h, tcpip.c, opt.h:
1808 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1809 filter per all network interfaces. Declare a new function in netif to enable to
1810 control the MAC filter (to reduce lwIP traffic processing).
1812 2007-03-11 Frédéric Bernon
1813 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1814 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1815 unless you know what you're doing (default are RFC1122 compliant). Note
1816 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1818 2007-03-08 Frédéric Bernon
1819 * tcp.h: Keepalive values can be configured at compile time, but don't change
1820 this unless you know what you're doing (default are RFC1122 compliant).
1822 2007-03-08 Frédéric Bernon
1823 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1824 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1825 on UDP sockets/netconn.
1827 2007-03-08 Simon Goldschmidt
1828 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1830 2007-03-06 Frédéric Bernon
1831 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1832 Implement SO_RCVTIMEO on UDP sockets/netconn.
1834 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1835 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1836 on the stack and remove the API msg type from memp
1838 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1839 * sockets.h, sockets.c: Move socket initialization to new
1840 lwip_socket_init() function.
1841 NOTE: this changes the API with ports. Ports will have to be
1842 updated to call lwip_socket_init() now.
1844 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1845 * api_lib.c: Use memcpy in netbuf_copy_partial.
1850 2008-03-17 Frédéric Bernon, Ed Kerekes
1851 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1852 some problems to fill the IP header on some targets, use now the
1853 ip.h macros to do it).
1855 2008-03-13 Frédéric Bernon
1856 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1857 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1858 TCP connection caused a crash. Note that using (lwip_)recvfrom
1859 like this is a bit slow and that using (lwip)getpeername is the
1860 good lwip way to do it (so, using recv is faster on tcp sockets).
1862 2008-03-12 Frédéric Bernon, Jonathan Larmour
1863 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1864 recv_raw() does not consume data", and the ping sample (with
1865 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1866 returned the IP payload, without the IP header).
1868 2008-03-04 Jonathan Larmour
1869 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1870 and/or warnings on some systems where mem_size_t and size_t differ.
1871 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1873 2008-03-04 Kieran Mansley (contributions by others)
1874 * Numerous small compiler error/warning fixes from contributions to
1875 mailing list after 1.3.0 release candidate made.
1877 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1878 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1880 2008-01-15 Kieran Mansley
1881 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1882 prevented from sending by a small send window, not just a zero
1885 2008-01-09 Jonathan Larmour
1886 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1887 conflict with Linux system headers.
1889 2008-01-06 Jonathan Larmour
1890 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1891 address entirely on receiving a DHCPNAK, and restarting discovery.
1893 2007-12-21 Simon Goldschmidt
1894 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1895 is not protected" by using new macros for interlocked access to modify/test
1896 netconn->recv_avail.
1898 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1899 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1901 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1902 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1903 of silly window avoidance and prevent lwIP from shrinking the window)
1905 2007-12-04 Simon Goldschmidt
1906 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1907 data packet was lost): add assert that all segment lists are empty in
1908 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1909 state from LAST_ACK in tcp_process
1911 2007-12-02 Simon Goldschmidt
1912 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1913 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1914 has to be set to 0 in lwipopts.h
1916 2007-12-02 Simon Goldschmidt
1917 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1918 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1919 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1920 This is a fix for thread-safety and allocates all items needed for a netconn
1921 when the netconn is created.
1923 2007-11-30 Simon Goldschmidt
1924 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1925 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1926 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1927 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1929 2007-11-27 Simon Goldschmidt
1930 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1931 letting ip_route only use netifs that are up.
1933 2007-11-27 Simon Goldschmidt
1934 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1935 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1936 sockets block most operations once they have seen a fatal error.
1938 2007-11-27 Simon Goldschmidt
1939 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1940 netif to send as an argument (to be able to send on netifs that are down).
1942 2007-11-26 Simon Goldschmidt
1943 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1946 2007-11-21 Simon Goldschmidt
1947 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1948 Fixed the nagle algorithm; nagle now also works for all raw API applications
1949 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1951 2007-11-12 Frédéric Bernon
1952 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1953 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1954 context in do_getaddr.
1956 2007-11-10 Simon Goldschmidt
1957 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1958 happen any time). Now the packet simply isn't enqueued when out of memory.
1960 2007-11-01 Simon Goldschmidt
1961 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1962 TCP_MSS if that is smaller) as long as no MSS option is received from the
1965 2007-11-01 Simon Goldschmidt
1966 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1967 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1968 sending our configured TCP_MSS instead of the one received).
1970 2007-11-01 Simon Goldschmidt
1971 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1972 calculated based on the configured TCP_MSS, not on the MSS option received
1975 2007-10-09 Simon Goldschmidt
1976 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
1977 short and also was generated wrong if checksum coverage != tot_len;
1978 receive: checksum was calculated wrong if checksum coverage != tot_len
1980 2007-10-08 Simon Goldschmidt
1981 * mem.c: lfree was not updated in mem_realloc!
1983 2007-10-07 Frédéric Bernon
1984 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
1985 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
1986 this change cause an API breakage for netconn_addr, since a parameter
1987 type change. Any compiler should cause an error without any changes in
1988 yours netconn_peer calls (so, it can't be a "silent change"). It also
1989 reduce a little bit the footprint for socket layer (lwip_getpeername &
1990 lwip_getsockname use now a common lwip_getaddrname function since
1991 netconn_peer & netconn_addr have the same parameters).
1993 2007-09-20 Simon Goldschmidt
1994 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
1995 by checking tcp_tw_pcbs also
1997 2007-09-19 Simon Goldschmidt
1998 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2000 2007-09-15 Mike Kleshov
2001 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2003 2007-09-06 Frédéric Bernon
2004 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2005 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2006 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2007 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2009 2007-08-30 Frédéric Bernon
2010 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2011 and fix some coding style.
2013 2007-08-28 Frédéric Bernon
2014 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2015 kind of packets. These packets are considered like Ethernet packets (payload
2016 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2017 are considered like IP packets (payload pointing to iphdr).
2019 2007-08-27 Frédéric Bernon
2020 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2021 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2022 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2024 2007-08-24 Kieran Mansley
2025 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2026 compiler (Paradigm C++)
2028 2007-08-09 Frédéric Bernon, Bill Florac
2029 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2030 Introduce IGMP_STATS to centralize statistics management.
2032 2007-08-09 Frédéric Bernon, Bill Florac
2033 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2034 packet on a udp pcb binded on an netif's IP address, and not on "any".
2036 2007-08-09 Frédéric Bernon, Bill Florac
2037 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2038 This is mainly on using lookup/lookfor, and some coding styles...
2040 2007-07-26 Frédéric Bernon (and "thedoctor")
2041 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2043 2007-07-25 Simon Goldschmidt
2044 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2045 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2046 (tcp_output is called again later from tcp timers).
2048 2007-07-25 Simon Goldschmidt
2049 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2050 copy_from_pbuf, which illegally modified the given pbuf.
2052 2007-07-25 Simon Goldschmidt
2053 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2054 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2056 2007-07-24 Simon Goldschmidt
2057 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2058 correct state (must be CLOSED).
2060 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2061 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2062 allocation. It now returns NULL.
2064 2007-07-13 Frédéric Bernon
2065 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2068 2007-07-13 Frédéric Bernon
2069 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2070 because current code doesn't follow rawapi.txt documentation.
2072 2007-07-13 Kieran Mansley
2073 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2074 out of sequence processing of received packets
2076 2007-07-03 Simon Goldschmidt
2077 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2078 assumption is made that this pbuf is in one piece (i.e. not chained). These
2079 assumptions clash with the possibility of converting to fully pool-based
2080 pbuf implementations, where PBUF_RAM pbufs might be chained.
2082 2007-07-03 Simon Goldschmidt
2083 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2084 when closing tcp netconns: removed conn->sem, less context switches when
2085 closing, both netconn_close and netconn_delete should safely close tcp
2088 2007-07-02 Simon Goldschmidt
2089 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2090 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2091 to cache ARP table indices with each pcb instead of single-entry cache for
2094 2007-07-02 Simon Goldschmidt
2095 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2096 warnings when assigning to smaller types.
2098 2007-06-28 Simon Goldschmidt
2099 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2101 2007-06-28 Simon Goldschmidt
2102 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2103 a segment contained chained pbufs)
2105 2007-06-28 Frédéric Bernon
2106 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2107 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2108 possible to define this macro in your own lwipopts.h to always use C library's
2109 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2111 2007-06-28 Frédéric Bernon
2112 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2113 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2114 in api_lib/api_msg (use pointers and not type with table, etc...)
2116 2007-06-26 Simon Goldschmidt
2117 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2119 2007-06-25 Simon Goldschmidt
2120 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2121 for udp packets with no matching pcb.
2123 2007-06-25 Simon Goldschmidt
2124 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2125 could get udp input packets if the remote side matched.
2127 2007-06-13 Simon Goldschmidt
2128 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2129 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2131 2007-06-13 Simon Goldschmidt
2132 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2133 -> netconn_new_..() does not allocate a new connection for unsupported
2136 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2137 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2138 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2140 2007-06-13 Frédéric Bernon, Matthias Weisser
2141 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2142 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2143 some macro names collision with some OS macros.
2145 2007-06-11 Simon Goldschmidt
2146 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2147 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2148 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2151 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2152 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2153 where TCP flags wasn't initialized in tcp_keepalive.
2155 2007-06-03 Simon Goldschmidt
2156 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2157 registered, p->payload was modified without modifying p->len if sending
2158 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2160 2007-06-03 Simon Goldschmidt
2161 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2162 re-used the input pbuf even if that didn't have enough space to include the
2163 link headers. Now the space is tested and a new pbuf is allocated for the
2164 echo response packet if the echo request pbuf isn't big enough.
2166 2007-06-01 Simon Goldschmidt
2167 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2169 2007-05-23 Frédéric Bernon
2170 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2171 allocated by do_listen if success) and netconn_accept errors handling. In
2172 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2173 by ASSERT, except for netconn_delete.
2175 2007-05-23 Frédéric Bernon
2176 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2177 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2178 directly close the recvmbox).
2180 2007-05-22 Simon Goldschmidt
2181 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2182 bound but unconnected (and non-listening) tcp_pcbs.
2184 2007-05-22 Frédéric Bernon
2185 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2186 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2187 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2188 like "sys_timeout" in their application threads.
2190 2007-05-22 Frédéric Bernon
2191 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2192 which parameters are used by which do_xxx function, and to avoid "misusing"
2193 parameters (patch #5938).
2195 2007-05-22 Simon Goldschmidt
2196 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2197 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2198 is only 8 bits wide. This affects the api, as there, the protocol was
2201 2007-05-18 Simon Goldschmidt
2202 * memp.c: addition to patch #5913: smaller pointer was returned but
2203 memp_memory was the same size -> did not save memory.
2205 2007-05-16 Simon Goldschmidt
2206 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2209 2007-05-16 Simon Goldschmidt
2210 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2211 as the one of the netif used for sending to prevent sending from old
2212 addresses after a netif address gets changed (partly fixes bug #3168).
2214 2007-05-16 Frédéric Bernon
2215 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2216 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2217 tcpip_init) because we have to be sure that network interfaces are already
2218 added (mac filter is updated only in igmp_init for the moment).
2220 2007-05-16 Simon Goldschmidt
2221 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2222 into sys_arch_sem_wait calls to prevent timers from running while waiting
2223 for the heap. This fixes bug #19167.
2225 2007-05-13 Simon Goldschmidt
2226 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2227 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2230 2007-05-07 Simon Goldschmidt
2231 * mem.c: Another attempt to fix bug #17922.
2233 2007-05-04 Simon Goldschmidt
2234 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2235 implementation so that it can be reused (don't allocate the target
2236 pbuf inside pbuf_copy()).
2238 2007-05-04 Simon Goldschmidt
2239 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2240 to save a little RAM (next pointer of memp is not used while not in pool).
2243 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2246 2007-04-23 Simon Goldschmidt
2247 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2248 in NULL reference for incoming TCP packets". Loopif has to be configured
2249 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2250 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2251 putting packets on a list that is fed to the stack by calling loopif_poll()
2252 (single-thread / NO_SYS / polling environment where e.g.
2253 netif->input() = ip_input).
2255 2007-04-17 Jonathan Larmour
2256 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2257 the difference between two u16_t's.
2258 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2259 MEMP_NUM_NETCONN in sockets.c right now.
2261 2007-04-12 Jonathan Larmour
2262 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2264 2007-04-12 Kieran Mansley
2265 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2266 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2268 2007-04-11 Simon Goldschmidt
2269 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2270 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2271 pbuf.c: removed functions no needed any more (by etharp).
2273 2007-04-11 Kieran Mansley
2274 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2275 "Constant is long" warnings with 16bit compilers. Contributed by
2276 avatar@mmlab.cse.yzu.edu.tw
2278 2007-04-05 Frédéric Bernon, Jonathan Larmour
2279 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2280 the mailbox is active". Now, the post is only done during a connect, and do_send,
2281 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2283 2007-04-03 Frédéric Bernon
2284 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2285 packets. See patch #5834.
2287 2007-03-30 Frédéric Bernon
2288 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2289 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2291 2007-03-30 Frédéric Bernon
2292 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2293 others environment defines (these were too "generic").
2295 2007-03-28 Frédéric Bernon
2296 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2297 result and can cause a crash. lwip_send now check netbuf_ref result.
2299 2007-03-28 Simon Goldschmidt
2300 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2301 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2302 defined. This is the way it should have been already (looking at
2305 2007-03-28 Kieran Mansley
2306 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2307 IP and TCP headers *and* physical link headers
2309 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2310 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2311 to send some garbage. It is not a definitive solution, but the patch does solve
2312 the problem for most cases.
2314 2007-03-22 Frédéric Bernon
2315 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2317 2007-03-22 Frédéric Bernon
2318 * api_lib.c: somes resources couldn't be freed if there was errors during
2319 netconn_new_with_proto_and_callback.
2321 2007-03-22 Frédéric Bernon
2322 * ethernetif.c: update netif->input calls to check return value. In older ports,
2323 it's a good idea to upgrade them, even if before, there could be another problem
2324 (access to an uninitialized mailbox).
2326 2007-03-21 Simon Goldschmidt
2327 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2328 by casting to unsigned).
2330 2007-03-21 Frédéric Bernon
2331 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2332 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2333 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2334 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2335 faster and more reliable communication between api_lib and tcpip.
2337 2007-03-21 Frédéric Bernon
2338 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2340 2007-03-21 Frédéric Bernon
2341 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2343 2007-03-21 Kieran Mansley
2344 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2347 2007-03-21 Kieran Mansley
2348 * Fix all uses of pbuf_header to check the return value. In some
2349 cases just assert if it fails as I'm not sure how to fix them, but
2350 this is no worse than before when they would carry on regardless
2353 2007-03-21 Kieran Mansley
2354 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2355 comment out missing header include in icmp.c
2357 2007-03-20 Frédéric Bernon
2358 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2359 synchronized with memp.h.
2361 2007-03-20 Frédéric Bernon
2362 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2363 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2364 network interfaces. Also fix a compiler warning.
2366 2007-03-20 Kieran Mansley
2367 * udp.c: Only try and use pbuf_header() to make space for headers if
2368 not a ROM or REF pbuf.
2370 2007-03-19 Frédéric Bernon
2371 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2374 2007-03-19 Frédéric Bernon
2375 * Remove unimplemented "memp_realloc" function from memp.h.
2377 2007-03-11 Simon Goldschmidt
2378 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2381 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2382 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2383 (missing `const' qualifier in socket functions), to get more compatible to
2384 standard POSIX sockets.
2386 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2387 * sockets.c: Add asserts inside bind, connect and sendto to check input
2388 parameters. Remove excessive set_errno() calls after get_socket(), because
2389 errno is set inside of get_socket(). Move last sock_set_errno() inside
2392 2007-03-09 Simon Goldschmidt
2393 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2394 was allocated too small.
2396 2007-03-06 Simon Goldschmidt
2397 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2398 the stack from concurrent access.
2400 2007-03-06 Frédéric Bernon, Dmitry Potapov
2401 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2402 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2404 2007-03-06 Simon Goldschmidt
2405 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2406 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2408 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2409 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2410 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2411 Allow to do ARP processing for incoming packets inside tcpip_thread
2412 (protecting ARP layer against concurrent access). You can also disable
2413 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2414 Older ports have to use tcpip_ethinput.
2416 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2417 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2418 from pointer target type"
2420 2007-03-05 Frédéric Bernon
2421 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2422 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2424 2007-03-04 Frédéric Bernon
2425 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2428 2007-03-04 Frédéric Bernon
2429 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2431 The api_msg struct stay on the stack (not moved to netconn struct).
2433 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2434 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2435 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2436 Also fixed cast warning in pbuf_alloc()
2438 2007-03-04 Simon Goldschmidt
2439 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2440 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2442 2007-03-03 Frédéric Bernon
2443 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2444 It is static, and never used in udp.c except udp_init().
2446 2007-03-02 Simon Goldschmidt
2447 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2448 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2449 initialized before tcpip_thread is running (e.g. before OS is started)
2451 2007-03-02 Frédéric Bernon
2452 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2455 2007-02-28 Kieran Mansley
2456 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2457 outside the region of the pbuf by pbuf_header()
2459 2007-02-28 Kieran Mansley
2460 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2461 when supplied timeout is also non-zero
2465 2006-12-05 Leon Woestenberg
2466 * CHANGELOG: Mention STABLE-1.2.0 release.
2470 2006-12-01 Christiaan Simons
2471 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2472 Note this is a workaround. Currently I have no other options left.
2474 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2475 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2476 to include/lwip/opt.h.
2477 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2478 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2479 * opt.h: Add above new options.
2481 2006-08-18 Christiaan Simons
2482 * tcp_{in,out}.c: added SNMP counters.
2483 * ipv4/ip.c: added SNMP counters.
2484 * ipv4/ip_frag.c: added SNMP counters.
2486 2006-08-08 Christiaan Simons
2487 * etharp.{c,h}: added etharp_find_addr() to read
2488 (stable) ethernet/IP address pair from ARP table
2490 2006-07-14 Christiaan Simons
2491 * mib_structs.c: added
2492 * include/lwip/snmp_structs.h: added
2493 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2495 2006-07-06 Christiaan Simons
2496 * snmp/asn1_{enc,dec}.c added
2498 * snmp/msg_{in,out}.c added
2499 * include/lwip/snmp_asn1.h added
2500 * include/lwip/snmp_msg.h added
2501 * doc/snmp_agent.txt added
2503 2006-03-29 Christiaan Simons
2504 * inet.c, inet.h: Added platform byteswap support.
2505 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2506 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2510 2006-11-30 Christiaan Simons
2511 * dhcp.c: Fixed false triggers of request_timeout.
2513 2006-11-28 Christiaan Simons
2514 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2516 2006-10-11 Christiaan Simons
2517 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2518 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2519 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2520 identifier from 170 to 136 (bug #17574).
2522 2006-10-10 Christiaan Simons
2523 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2525 2006-08-17 Christiaan Simons
2526 * udp.c: Fixed bug #17200, added check for broadcast
2527 destinations for PCBs bound to a unicast address.
2529 2006-08-07 Christiaan Simons
2530 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2532 2006-06-27 Christiaan Simons
2533 * api_msg.c: Applied patch for cold case (bug #11135).
2534 In accept_function() ensure newconn->callback is always initialized.
2536 2006-06-15 Christiaan Simons
2537 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2538 facilitate printing of mem_size_t and u16_t statistics.
2540 2006-06-14 Christiaan Simons
2541 * api_msg.c: Applied patch #5146 to handle allocation failures
2542 in accept() by Kevin Lawson.
2544 2006-05-26 Christiaan Simons
2545 * api_lib.c: Removed conn->sem creation and destruction
2546 from netconn_write() and added sys_sem_new to netconn_new_*.
2550 2006-03-03 Christiaan Simons
2551 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2552 access and added pbuf_alloc() return value checks.
2554 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2555 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2556 now handled by the checksum routine properly.
2558 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2559 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2560 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2562 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2563 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2564 submitted by Mitrani Hiroshi.
2566 2005-12-15 Christiaan Simons
2567 * inet.c: Disabled the added summing routine to preserve code space.
2569 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2570 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2571 Added Curt McDowell's optimized checksumming routine for future
2572 inclusion. Need to create test case for unaliged, aligned, odd,
2573 even length combination of cases on various endianess machines.
2575 2005-12-09 Christiaan Simons
2576 * inet.c: Rewrote standard checksum routine in proper portable C.
2578 2005-11-25 Christiaan Simons
2579 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2580 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2581 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2583 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2584 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2585 routine by Peter Jolasson.
2586 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2588 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2589 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2590 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2592 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2593 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2595 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2596 * udp.c: UDP pcb->recv() was called even when it was NULL.
2600 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2601 * etharp.*: Disabled multiple packets on the ARP queue.
2602 This clashes with TCP queueing.
2604 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2605 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2606 Halved the ARP period, doubled the period counts.
2607 ETHARP_MAX_PENDING now should be at least 2. This prevents
2608 the counter from reaching 0 right away (which would allow
2609 too little time for ARP responses to be received).
2611 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2612 * dhcp.c: Decline messages were not multicast but unicast.
2613 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2614 Do not try hard to insert arbitrary packet's source address,
2615 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2616 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2617 querying an address will see it appear in the cache (DHCP could
2618 suffer from this when a server invalidly gave an in-use address.)
2619 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2620 comparing network addresses (identifiers), not the network masks
2622 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2623 IP address actually belongs to the network of the given interface.
2625 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2626 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2630 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2631 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2632 even if one is already pending, if the rcv_wnd is above a threshold
2633 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2634 delayed ACK in order to open the window if the stack is only receiving data.
2636 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2637 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2639 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2640 * etharp.c: Make sure the first pbuf queued on an ARP entry
2641 is properly ref counted.
2643 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2644 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2645 warnings about comparison.
2646 * pbuf.c: Stopped compiler complaining of empty if statement
2647 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2648 * tcp.c: Stopped compiler complaining of empty if statement
2649 when LWIP_DEBUGF() empty.
2650 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2651 * inet.c: Added a couple of casts to quiet the compiler.
2652 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2654 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2655 * inet.c: Made data types consistent in inet_ntoa().
2656 Added casts for return values of checksum routines, to pacify compiler.
2657 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2658 Small corrections to some debugging statements, to pacify compiler.
2660 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2661 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2662 * ethernetif.c Updated low_level_output() to match prototype for
2663 netif->linkoutput and changed low_level_input() similarly for consistency.
2664 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2665 of raw_recv() in raw.h and so avoid compiler error.
2666 * sockets.c: Added trivial (int) cast to keep compiler happier.
2667 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2673 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2674 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2675 your cc.h file defines this either 1 or 0. If non-defined,
2677 * .c: Added <string.h> and <errno.h> includes where used.
2678 * etharp.c: Made some array indices unsigned.
2680 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2681 * netif.*: Added netif_set_up()/down().
2682 * dhcp.c: Changes to restart program flow.
2684 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2685 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2686 single-pass lookup for different candidates. Should exploit locality.
2688 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2689 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2690 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2691 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2692 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2696 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2697 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2698 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2699 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2700 is to prefix the 14-bit Ethernet headers with two padding bytes.
2702 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2703 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2704 * etharp.c: Fixed the case where the packet that initiates the ARP request
2705 is not queued, and gets lost. Fixed the case where the packets destination
2706 address is already known; we now always queue the packet and perform an ARP
2713 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2714 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2715 * Fixed two possible NULL references in rare cases.
2721 * Fixed DHCP which did not include the IP address in DECLINE messages.
2725 * etharp.c has been hauled over a bit.
2731 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2732 * Packets sent from ARP queue had invalid source hardware address.
2736 * Pass-by ARP requests do now update the cache.
2740 * No longer dependent on ctype.h.
2741 * New socket options.
2742 * Raw IP pcb support.
2748 * Some debug formatters and casts fixed.
2749 * Numereous fixes in PPP.
2753 * DEBUGF now is LWIP_DEBUGF
2754 * pbuf_dechain() has been re-enabled.
2755 * Mentioned the changed use of CVS branches in README.
2761 * Fixed pool pbuf memory leak in pbuf_alloc().
2762 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2763 Reported by Savin Zlobec.
2765 * PBUF_POOL chains had their tot_len field not set for non-first
2766 pbufs. Fixed in pbuf_alloc().
2770 * Added PPP stack contributed by Marc Boucher
2774 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2776 * ARP queueuing now queues the latest packet instead of the first.
2777 This is the RFC recommended behaviour, but can be overridden in
2784 * TCP has been fixed to deal with the new use of the pbuf->ref
2787 * DHCP dhcp_inform() crash bug fixed.
2791 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2792 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2793 Implemented by David Haas.
2799 * The packet buffer implementation has been enhanced to support
2800 zero-copy and copy-on-demand for packet buffers which have their
2801 payloads in application-managed memory.
2802 Implemented by David Haas.
2804 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2805 if an outgoing packet can be directly sent on the link, or perform
2806 a copy-on-demand when necessary.
2808 The application can safely assume the packet is sent, and the RAM
2809 is available to the application directly after calling udp_send()
2810 or similar function.
2814 * ARP_QUEUEING should now correctly work for all cases, including
2816 Implemented by Leon Woestenberg.
2820 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2821 to a '0.0.0.0' IP address.
2823 * The packet buffer implementation is changed. The pbuf->ref counter
2824 meaning has changed, and several pbuf functions have been
2825 adapted accordingly.
2827 * netif drivers have to be changed to set the hardware address length field
2828 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2829 See the contrib/ports/c16x cs8900 driver as a driver example.
2831 * netif's have a dhcp field that must be initialized to NULL by the driver.
2832 See the contrib/ports/c16x cs8900 driver as a driver example.
2834 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2835 logged in CVS but have not been explained here.
2837 (0.5.3) Changes since version 0.5.2
2841 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2842 threads because it wasn't protected by semaphores.
2846 * struct ip_addr now packed.
2848 * The name of the time variable in arp.c has been changed to ctime
2849 to avoid conflicts with the time() function.
2851 (0.5.2) Changes since version 0.5.1
2855 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2859 * A bug in tcp_parseopt() could cause the stack to hang because of a
2860 malformed TCP option.
2862 * The address of new connections in the accept() function in the BSD
2863 socket library was not handled correctly.
2865 * pbuf_dechain() did not update the ->tot_len field of the tail.
2867 * Aborted TCP connections were not handled correctly in all
2872 * All protocol header structs are now packed.
2874 * The ->len field in the tcp_seg structure now counts the actual
2875 amount of data, and does not add one for SYN and FIN segments.
2877 (0.5.1) Changes since version 0.5.0
2881 * Possible to run as a user process under Linux.
2883 * Preliminary support for cross platform packed structs.
2885 * ARP timer now implemented.
2889 * TCP output queue length was badly initialized when opening
2892 * TCP delayed ACKs were not sent correctly.
2894 * Explicit initialization of BSS segment variables.
2896 * read() in BSD socket library could drop data.
2898 * Problems with memory alignment.
2900 * Situations when all TCP buffers were used could lead to
2903 * TCP MSS option wasn't parsed correctly.
2905 * Problems with UDP checksum calculation.
2907 * IP multicast address tests had endianess problems.
2909 * ARP requests had wrong destination hardware address.
2913 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2915 * A ->linkoutput() member was added to struct netif.
2917 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2919 * ntoh* macros are now null definitions for big endian CPUs.
2921 (0.5.0) Changes since version 0.4.2
2925 * Redesigned operating system emulation layer to make porting easier.
2927 * Better control over TCP output buffers.
2929 * Documenation added.
2933 * Locking issues in buffer management.
2935 * Bugfixes in the sequential API.
2937 * IP forwarding could cause memory leakage. This has been fixed.
2941 * Directory structure somewhat changed; the core/ tree has been
2944 (0.4.2) Changes since version 0.4.1
2948 * Experimental ARP implementation added.
2950 * Skeleton Ethernet driver added.
2952 * Experimental BSD socket API library added.
2956 * In very intense situations, memory leakage could occur. This has
2961 * Variables named "data" and "code" have been renamed in order to
2962 avoid name conflicts in certain compilers.
2964 * Variable++ have in appliciable cases been translated to ++variable
2965 since some compilers generate better code in the latter case.
2967 (0.4.1) Changes since version 0.4
2971 * TCP: Connection attempts time out earlier than data
2972 transmissions. Nagle algorithm implemented. Push flag set on the
2973 last segment in a burst.
2975 * UDP: experimental support for UDP-Lite extensions.
2979 * TCP: out of order segments were in some cases handled incorrectly,
2980 and this has now been fixed. Delayed acknowledgements was broken
2981 in 0.4, has now been fixed. Binding to an address that is in use
2982 now results in an error. Reset connections sometimes hung an
2983 application; this has been fixed.
2985 * Checksum calculation sometimes failed for chained pbufs with odd
2986 lengths. This has been fixed.
2988 * API: a lot of bug fixes in the API. The UDP API has been improved
2989 and tested. Error reporting and handling has been
2990 improved. Logical flaws and race conditions for incoming TCP
2991 connections has been found and removed.
2993 * Memory manager: alignment issues. Reallocating memory sometimes
2994 failed, this has been fixed.
2996 * Generic library: bcopy was flawed and has been fixed.
3000 * API: all datatypes has been changed from generic ones such as
3001 ints, to specified ones such as u16_t. Functions that return
3002 errors now have the correct type (err_t).
3004 * General: A lot of code cleaned up and debugging code removed. Many
3005 portability issues have been fixed.
3007 * The license was changed; the advertising clause was removed.
3011 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3012 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3015 (0.4) Changes since version 0.3.1
3017 * Memory management has been radically changed; instead of
3018 allocating memory from a shared heap, memory for objects that are
3019 rapidly allocated and deallocated is now kept in pools. Allocation
3020 and deallocation from those memory pools is very fast. The shared
3021 heap is still present but is used less frequently.
3023 * The memory, memory pool, and packet buffer subsystems now support
3024 4-, 2-, or 1-byte alignment.
3026 * "Out of memory" situations are handled in a more robust way.
3028 * Stack usage has been reduced.
3030 * Easier configuration of lwIP parameters such as memory usage,
3031 TTLs, statistics gathering, etc. All configuration parameters are
3032 now kept in a single header file "lwipopts.h".
3034 * The directory structure has been changed slightly so that all
3035 architecture specific files are kept under the src/arch
3038 * Error propagation has been improved, both in the protocol modules
3041 * The code for the RTXC architecture has been implemented, tested
3044 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3045 the Internet checksum modules.
3047 * Bugs related to porting between a 32-bit and a 16-bit architecture
3048 have been found and corrected.
3050 * The license has been changed slightly to conform more with the
3051 original BSD license, including the advertisement clause.
3053 (0.3.1) Changes since version 0.3
3055 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3056 RAM never returned the RAM when the pbuf was deallocated.
3058 * TCP congestion control, window updates and retransmissions did not
3059 work correctly. This has now been fixed.
3061 * Bugfixes in the API.
3063 (0.3) Changes since version 0.2
3065 * New and improved directory structure. All include files are now
3066 kept in a dedicated include/ directory.
3068 * The API now has proper error handling. A new function,
3069 netconn_err(), now returns an error code for the connection in
3072 * Improvements in the memory management subsystem. The system now
3073 keeps a pointer to the lowest free memory block. A new function,
3074 mem_malloc2() tries to allocate memory once, and if it fails tries
3075 to free some memory and retry the allocation.
3077 * Much testing has been done with limited memory
3078 configurations. lwIP now does a better job when overloaded.
3080 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3082 * Many bugfixes in the TCP code:
3084 - Fixed a bug in tcp_close().
3086 - The TCP receive window was incorrectly closed when out of
3087 sequence segments was received. This has been fixed.
3089 - Connections are now timed-out of the FIN-WAIT-2 state.
3091 - The initial congestion window could in some cases be too
3092 large. This has been fixed.
3094 - The retransmission queue could in some cases be screwed up. This
3097 - TCP RST flag now handled correctly.
3099 - Out of sequence data was in some cases never delivered to the
3100 application. This has been fixed.
3102 - Retransmitted segments now contain the correct acknowledgment
3103 number and advertised window.
3105 - TCP retransmission timeout backoffs are not correctly computed
3106 (ala BSD). After a number of retransmissions, TCP now gives up
3109 * TCP connections now are kept on three lists, one for active
3110 connections, one for listening connections, and one for
3111 connections that are in TIME-WAIT. This greatly speeds up the fast
3112 timeout processing for sending delayed ACKs.
3114 * TCP now provides proper feedback to the application when a
3115 connection has been successfully set up.
3117 * More comments have been added to the code. The code has also been
3118 somewhat cleaned up.
3120 (0.2) Initial public release.