5 * [Enter new changes just after this line - do not remove this line]
9 2011-08-24: Simon Goldschmidt
10 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
12 2011-07-26: Simon Goldschmidt
13 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
14 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
16 2011-07-21: Simon Goldschmidt (patch by hanhui)
17 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
18 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
19 Also added code to allow ip_forward() to forward non-broadcast packets to
20 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
22 2011-07-21: Simon Goldschmidt
23 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
24 ioctl/FIONREAD return the size of the next pending datagram.
26 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
27 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
30 2011-05-25: Simon Goldschmidt
31 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
32 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
33 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
34 code so that the code is more readable.
36 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
37 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
38 Ivan! (this is work in progress: we're just post release anyway :-)
40 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
41 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
47 2011-09-01: Simon Goldschmidt
48 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
50 2011-08-24: Simon Goldschmidt
51 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
53 2011-08-24: Simon Goldschmidt
54 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
55 accept() on UDP connections
57 2011-08-24: Simon Goldschmidt
58 * sockets.h: fixed bug #34057 socklen_t should be a typedef
60 2011-08-24: Simon Goldschmidt
61 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
63 2011-08-24: Simon Goldschmidt
64 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
66 2011-08-24: Simon Goldschmidt
67 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
69 2011-08-22: Simon Goldschmidt
70 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
71 merely prevents nagle from not transmitting fast after closing.)
73 2011-07-22: Simon Goldschmidt
74 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
75 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
76 lwip_send() sends as much as possible for non-blocking sockets
78 2011-07-22: Simon Goldschmidt
79 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
80 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
81 at regular intervals from main level.
83 2011-07-21: Simon Goldschmidt
84 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
85 sending an ARP request when an ARP entry is used in the last minute before
88 2011-07-04: Simon Goldschmidt
89 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
91 2011-06-26: Simon Goldschmidt
92 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
93 updating its documentation only.
95 2011-06-26: Simon Goldschmidt
96 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
99 2011-06-26: Simon Goldschmidt
100 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
108 2011-03-27: Simon Goldschmidt
109 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
110 calculate it in tcp_zero_window_probe (the only place where it was used).
112 2010-11-21: Simon Goldschmidt
113 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
116 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
117 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
118 IP_MULTICAST_LOOP at socket- and raw-API level.
120 2010-06-16: Simon Goldschmidt
121 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
122 link-layer-addressed UDP traffic to be received while a netif is down (just
123 like DHCP during configuration)
125 2010-05-22: Simon Goldschmidt
126 * many many files: bug #27352: removed packing from ip_addr_t, the packed
127 version is now only used in protocol headers. Added global storage for
128 current src/dest IP address while in input functions.
130 2010-05-16: Simon Goldschmidt
131 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
132 calculation (and use them throughout the stack where applicable)
134 2010-05-16: Simon Goldschmidt
135 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
136 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
138 2010-05-16: Simon Goldschmidt
139 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
140 MEMP pool instead of the heap
142 2010-05-13: Simon Goldschmidt
143 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
144 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
145 packets to more than one pcb.
147 2010-05-02: Simon Goldschmidt
148 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
149 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
151 2010-04-30: Simon Goldschmidt
152 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
153 take a precalculated checksum, added pbuf_fill_chksum() to copy data
154 into a pbuf and at the same time calculating the checksum for that data
156 2010-04-29: Simon Goldschmidt
157 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
158 2-byte-aligned IP addresses and MAC addresses
160 2010-04-28: Patch by Bill Auerbach
161 * ip.c: Inline generating IP checksum to save a function call
163 2010-04-14: Simon Goldschmidt
164 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
165 tcpip_thread processes messages or timeouts to implement a watchdog.
167 2010-03-28: Simon Goldschmidt
168 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
169 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
171 2010-03-27: Simon Goldschmidt
172 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
173 etharp_query to prevent unnecessary function calls (inspired by
176 2010-03-20: Simon Goldschmidt
177 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
178 since the linker cannot do this automatically to save space.
180 2010-03-20: Simon Goldschmidt
181 * opt.h, etharp.c/.h: Added support for static ARP table entries
183 2010-03-14: Simon Goldschmidt
184 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
185 when creating TCP segments, not when (re-)transmitting them.
187 2010-03-07: Simon Goldschmidt
188 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
189 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
190 This should speed up receiving data on sockets as the select code in
191 event_callback is only executed when select is waiting.
193 2010-03-06: Simon Goldschmidt
194 * tcp_out.c: task #7013 (Create option to have all packets delivered to
195 netif->output in one piece): Always copy to try to create single pbufs
198 2010-03-06: Simon Goldschmidt
199 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
200 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
201 for tcp netconns to receive pbufs, not netbufs; use that function
204 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
205 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
206 Work on tcp_enqueue: Don't waste memory when chaining segments,
207 added option TCP_OVERSIZE to prevent creating many small pbufs when
208 calling tcp_write with many small blocks of data. Instead, pbufs are
209 allocated larger than needed and the space is used for later calls to
212 2010-02-21: Simon Goldschmidt
213 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
216 2010-02-21: Simon Goldschmidt
217 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
218 implementation of tcp to make API usage cleare to application programmers
220 2010-02-14: Simon Goldschmidt/Stephane Lesage
221 * ip_addr.h: Improved some defines working on ip addresses, added faster
222 macro to copy addresses that cannot be NULL
224 2010-02-13: Simon Goldschmidt
225 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
226 blocking send operation)
228 2010-02-12: Simon Goldschmidt
229 * sockets.c/.h: Added a minimal version of posix fctl() to have a
230 standardised way to set O_NONBLOCK for nonblocking sockets.
232 2010-02-12: Simon Goldschmidt
233 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
234 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
235 and dhcp work with user-allocated structs instead of callin mem_malloc
237 2010-02-12: Simon Goldschmidt/Jeff Barber
238 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
239 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
241 2010-02-12: Simon Goldschmidt
242 * sys layer: task #10139 (Prefer statically allocated memory): converted
243 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
244 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
245 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
246 to let sys.h use binary semaphores instead of mutexes - as before)
248 2010-02-09: Simon Goldschmidt (Simon Kallweit)
249 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
250 (Restart system timeout handling)
252 2010-02-09: Simon Goldschmidt
253 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
254 netif.c) - loopif does not have to be created by the port any more,
255 just define LWIP_HAVE_LOOPIF to 1.
257 2010-02-08: Simon Goldschmidt
258 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
259 inet_ntoa_r/ipaddr_ntoa_r
261 2010-02-08: Simon Goldschmidt
262 * netif.h: Added netif_s/get_igmp_mac_filter() macros
264 2010-02-05: Simon Goldschmidt
265 * netif.h: Added function-like macros to get/set the hostname on a netif
267 2010-02-04: Simon Goldschmidt
268 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
269 make changing the actual implementation behind the typedef easier.
271 2010-02-01: Simon Goldschmidt
272 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
273 for allocating memory when getaddrinfo() is called.
275 2010-01-31: Simon Goldschmidt
276 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
277 them once instead of parsing for every option. This also removes
278 the need for mem_malloc from dhcp_recv and makes it possible to
279 correctly retrieve the BOOTP file.
281 2010-01-30: simon Goldschmidt
282 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
285 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
286 * api.h, api_msg.c, sockets.c: Added except set support in select
289 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
290 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
291 Add non-blocking support for connect (partly from patch #6860),
292 plus many cleanups in socket & netconn API.
294 2010-01-27: Simon Goldschmidt
295 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
296 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
298 2010-01-26: Simon Goldschmidt
299 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
301 2010-01-14: Simon Goldschmidt
302 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
303 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
305 2010-01-13: Simon Goldschmidt
306 * mem.c: The heap now may be moved to user-defined memory by defining
307 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
308 (patch #6966 and bug #26133)
310 2010-01-10: Simon Goldschmidt (Bill Auerbach)
311 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
314 2010-01-10: Simon Goldschmidt
315 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
316 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
318 2009-12-31: Simon Goldschmidt
319 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
320 added timers.c/.h: Separated timer implementation from semaphore/mbox
321 implementation, moved timer implementation to timers.c/.h, timers are
322 now only called from tcpip_thread or by explicitly checking them.
325 2009-12-27: Simon Goldschmidt
326 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
327 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
332 2011-04-20: Simon Goldschmidt
333 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
335 2011-04-13: Simon Goldschmidt
336 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
337 using ports in the IANA private/dynamic range (49152 through 65535).
339 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
340 * etharp.h/.c: Fixed broken VLAN support.
342 2011-03-27: Simon Goldschmidt
343 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
344 pcbs) by checking if the pcb was bound (local_port != 0).
346 2011-03-27: Simon Goldschmidt
347 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
349 2011-03-27: Simon Goldschmidt
350 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
351 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
353 2011-03-27: Simon Goldschmidt
354 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
355 is present never times out) by starting retransmission timer before checking
358 2011-03-22: Simon Goldschmidt
359 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
360 calling sio_read_abort() if the file descriptor is valid.
362 2011-03-14: Simon Goldschmidt
363 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
364 more than once can render a socket useless) since it mainly involves changing
365 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
367 2011-03-13: Simon Goldschmidt
368 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
369 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
370 use EALRADY instead of -1
372 2011-03-13: Simon Goldschmidt
373 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
374 connection has been aborted by err_tcp (since this is not a normal closing
377 2011-03-13: Simon Goldschmidt
378 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
379 with pcb->state != CLOSED
381 2011-02-17: Simon Goldschmidt
382 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
385 2011-02-17: Simon Goldschmidt
386 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
388 2011-01-24: Simon Goldschmidt
389 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
391 2010-12-02: Simon Goldschmidt
392 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
394 2010-11-23: Simon Goldschmidt
395 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
396 LWIP_SO_RCVBUF and ioctl/FIONREAD.
398 2010-11-23: Simon Goldschmidt
399 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
400 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
402 2010-11-23: Simon Goldschmidt
403 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
404 refusing 'refused_data' again.
406 2010-11-22: Simon Goldschmidt
407 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
408 after a successful nonblocking connection.
410 2010-11-22: Simon Goldschmidt
411 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
412 must be sent link-local
414 2010-11-22: Simon Goldschmidt
415 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
418 2010-11-20: Simon Goldschmidt
419 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
421 2010-11-20: Simon Goldschmidt
422 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
423 resemble other stacks.
425 2010-11-20: Simon Goldschmidt
426 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
427 no-copy TCP writes will never succeed.
429 2010-11-20: Simon Goldschmidt
430 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
431 not match documentation: return ERR_ARG instead of ERR_VAL if not
432 initialized or wrong argument.
434 2010-10-20: Simon Goldschmidt
435 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
437 2010-10-05: Simon Goldschmidt
438 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
439 replugging the network cable after an AutoIP address was assigned.
441 2010-08-10: Simon Goldschmidt
442 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
444 2010-08-03: Simon Goldschmidt
445 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
447 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
448 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
449 endian architectures)
451 2010-07-28: Simon Goldschmidt
452 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
455 2010-07-27: Simon Goldschmidt
456 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
457 harm but never did anything
459 2010-07-21: Simon Goldschmidt
460 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
463 2010-07-16: Kieran Mansley
464 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
466 2010-07-10: Simon Goldschmidt
467 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
469 2010-06-30: Simon Goldschmidt
470 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
473 2010-06-28: Kieran Mansley
474 * timers.c remove unportable printing of C function pointers
476 2010-06-24: Simon Goldschmidt
477 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
478 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
480 2010-06-24: Simon Goldschmidt
481 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
482 implemented shutdown at socket level.
484 2010-06-21: Simon Goldschmidt
485 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
486 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
487 custom pbufs that reference other (original) pbufs. Additionally set
488 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
490 2010-06-15: Simon Goldschmidt
491 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
493 2010-06-14: Simon Goldschmidt
494 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
496 2010-06-12: Simon Goldschmidt
497 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
500 2010-05-17: Simon Goldschmidt
501 * netdb.c: Correctly NULL-terminate h_addr_list
503 2010-05-16: Simon Goldschmidt
504 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
505 "symbol already defined" i.e. when linking to winsock
507 2010-05-05: Simon Goldschmidt
508 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
511 2010-04-21: Simon Goldschmidt
512 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
515 2010-03-28: Luca Ceresoli
516 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
518 2010-03-27: Luca Ceresoli
519 * mib2.c: patch #7130: remove meaningless const qualifiers
521 2010-03-26: Simon Goldschmidt
522 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
524 2010-03-26: Simon Goldschmidt
525 * various files: Fixed compiling with different options disabled (TCP/UDP),
526 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
528 2010-03-25: Simon Goldschmidt
529 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
531 2010-03-25: Simon Goldschmidt
532 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
533 overrunning our rcv_wnd in ooseq case.
535 2010-03-22: Simon Goldschmidt
536 * tcp.c: tcp_listen() did not copy the pcb's prio.
538 2010-03-19: Simon Goldschmidt
539 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
541 2010-03-14: Simon Goldschmidt
542 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
543 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
544 and basing PBUF_LINK_HLEN on it.
546 2010-03-08: Simon Goldschmidt
547 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
548 when assiging routable address): when checking incoming packets and
549 aborting existing connection on address change, filter out link-local
552 2010-03-06: Simon Goldschmidt
553 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
555 2010-03-06: Simon Goldschmidt
556 * ipv4/ip.c: Don't try to forward link-local addresses
558 2010-03-06: Simon Goldschmidt
559 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
562 2010-03-05: Simon Goldschmidt
563 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
566 2010-03-05: Simon Goldschmidt
567 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
568 into multiple calls to tcp_write.
570 2010-02-21: Simon Goldschmidt
571 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
572 the implementation of DNS_USES_STATIC_BUF==1)
574 2010-02-20: Simon Goldschmidt
575 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
576 close() vs. shutdown(). Now the application does not get any more
577 recv callbacks after calling tcp_close(). Added tcp_shutdown().
579 2010-02-19: Simon Goldschmidt
580 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
581 confusion with realloc()
583 2010-02-15: Simon Goldschmidt/Stephane Lesage
584 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
587 2010-02-14: Simon Goldschmidt
588 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
589 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
590 admin-status of a netif are up
592 2010-02-14: Simon Goldschmidt
593 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
594 reception and is not really necessary
596 2010-02-14: Simon Goldschmidt
597 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
598 request was directed as us (RFC 826, Packet Reception), otherwise
599 only update existing entries; internalized some functions
601 2010-02-14: Simon Goldschmidt
602 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
603 disabled on netif used for PPPoE) by adding a new netif flag
604 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
605 device but prevents usage of ARP (so that ethernet_input can be used
608 2010-02-12: Simon Goldschmidt
609 * netif.c: netif_set_link_up/down: only do something if the link state
612 2010-02-12: Simon Goldschmidt/Stephane Lesage
613 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
616 2010-02-12: Simon Goldschmidt
617 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
619 2010-02-09: Simon Goldschmidt
620 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
621 (recv() makes receive window update for data that wasn't received by
624 2010-02-09: Simon Goldschmidt/Stephane Lesage
625 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
626 or any netconn_recv() error)
628 2010-02-09: Simon Goldschmidt
629 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
631 2010-02-09: Simon Goldschmidt
632 * netif.c: For loopback packets, adjust the stats- and snmp-counters
633 for the loopback netif.
635 2010-02-08: Simon Goldschmidt
636 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
637 since they are not used anywhere else.
639 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
640 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
641 (patch from bug #28798)
643 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
644 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
645 another bug when LWIP_RAND() returns zero.
647 2010-02-04: Simon Goldschmidt
648 * nearly every file: Use macros defined in ip_addr.h (some of them new)
649 to work with IP addresses (preparation for bug #27352 - Change ip_addr
650 from struct to typedef (u32_t) - and better code).
652 2010-01-31: Simon Goldschmidt
653 * netif.c: Don't call the link-callback from netif_set_up/down() since
654 this invalidly retriggers DHCP.
656 2010-01-29: Simon Goldschmidt
657 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
658 portability file inet.h and its contents from the stack: moved htonX-
659 functions to def.h (and the new def.c - they are not ipv4 dependent),
660 let inet.h depend on ip_addr.h and not the other way round.
661 This fixes bug #28732.
663 2010-01-28: Kieran Mansley
664 * tcp.c: Ensure ssthresh >= 2*MSS
666 2010-01-27: Simon Goldschmidt
667 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
668 callback can lead to accessing unallocated memory. As a consequence,
669 ERR_ABRT means the application has called tcp_abort()!
671 2010-01-25: Simon Goldschmidt
672 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
673 not implemented in SNMP): write-only or not-accessible are still
674 returned by getnext (though not by get)
676 2010-01-24: Simon Goldschmidt
677 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
678 not use reserved C/C++ keywords
680 2010-01-23: Simon Goldschmidt
681 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
684 2010-01-21: Simon Goldschmidt
685 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
686 if tcp_enqueue fails) both in raw- and netconn-API
688 2010-01-19: Simon Goldschmidt
689 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
691 2010-01-18: Iordan Neshev/Simon Goldschmidt
692 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
693 bugfix backports from 2.4.x.
695 2010-01-18: Simon Goldschmidt
696 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
698 2010-01-17: Simon Goldschmidt
699 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
700 task #10102: "netconn: clean up conn->err threading issues" by adding
701 error return value to struct api_msg_msg
703 2010-01-17: Simon Goldschmidt
704 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
705 to return err_t (bugs #27709 and #28087)
707 2010-01-14: Simon Goldschmidt
708 * ...: Use typedef for function prototypes throughout the stack.
710 2010-01-13: Simon Goldschmidt
711 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
712 window = 0) by correctly draining recvmbox/acceptmbox
714 2010-01-11: Simon Goldschmidt
715 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
716 erroneous callbacks) by copying the code from recent pppd
718 2010-01-10: Simon Goldschmidt
719 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
721 2010-01-10: Simon Goldschmidt
722 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
724 2010-01-08: Simon Goldschmidt
725 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
727 2010-01-08: Simon Goldschmidt
728 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
729 passed to dns_local_addhost() might be volatile
731 2010-01-07: Simon Goldschmidt
732 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
734 2010-01-06: Simon Goldschmidt
735 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
737 2009-12-31: Simon Goldschmidt
738 * many ppp files: Reorganised PPP source code from ucip structure to pppd
739 structure to easily compare our code against the pppd code (around v2.3.1)
741 2009-12-27: Simon Goldschmidt
742 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
750 2009-10-27 Simon Goldschmidt/Stephan Lesage
751 * netifapi.c/.h: Added netifapi_netif_set_addr()
753 2009-10-07 Simon Goldschmidt/Fabian Koch
754 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
755 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
757 2009-08-26 Simon Goldschmidt/Simon Kallweit
758 * slipif.c/.h: bug #26397: SLIP polling support
760 2009-08-25 Simon Goldschmidt
761 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
762 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
764 2009-08-25 Simon Goldschmidt
765 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
767 2009-08-24 Jakob Stoklund Olesen
768 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
769 to netif_set_link_up().
771 2009-08-23 Simon Goldschmidt
772 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
773 to a human-readable string.
777 2009-12-24: Kieran Mansley
778 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
781 2009-12-06: Simon Goldschmidt
782 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
783 be statically allocated (like in ucip)
785 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
786 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
788 2009-12-03: Simon Goldschmidt
789 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
790 could have non-zero length
792 2009-12-02: Simon Goldschmidt
793 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
794 tcp_input_pcb until after calling the pcb's callbacks
796 2009-11-29: Simon Goldschmidt
797 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
798 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
800 2009-11-29: Simon Goldschmidt
801 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
802 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
804 2009-11-26: Simon Goldschmidt
805 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
808 2009-11-26: Simon Goldschmidt
809 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
810 algorithm at PCB level
812 2009-11-22: Simon Goldschmidt
813 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
815 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
816 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
817 reusing time-wait pcb
819 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
820 * sockets.c: Fixed bug #28062: Data received directly after accepting
821 does not wake up select
823 2009-11-11: Simon Goldschmidt
824 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
826 2009-10-30: Simon Goldschmidt
827 * opt.h: Increased default value for TCP_MSS to 536, updated default
828 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
830 2009-10-28: Kieran Mansley
831 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
832 to follow algorithm from TCP/IP Illustrated
834 2009-10-27: Kieran Mansley
835 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
837 2009-10-25: Simon Goldschmidt
838 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
839 pcb->recv is NULL to keep rcv_wnd correct)
841 2009-10-25: Simon Goldschmidt
842 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
844 2009-10-23: Simon Goldschmidt (David Empson)
845 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
847 2009-10-21: Simon Goldschmidt
848 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
849 trailing 1 byte len (SYN/FIN)
851 2009-10-21: Simon Goldschmidt
852 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
854 2009-10-19: Simon Goldschmidt
855 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
856 conditional code to assert where applicable), check pbuf length before
857 testing for valid reply
859 2009-10-19: Simon Goldschmidt
860 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
861 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
863 2009-10-16: Simon Goldschmidt
864 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
865 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
868 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
869 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
871 2009-10-15: Simon Goldschmidt
872 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
875 2009-10-15: Simon Goldschmidt
876 * autoip.c: Fixed bug #27704: autoip starts with wrong address
877 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
878 of network byte order
880 2009-10-11 Simon Goldschmidt (Jörg Kesten)
881 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
882 which are not consecutive when retransmitting unacked segments
884 2009-10-09 Simon Goldschmidt
885 * opt.h: Fixed default values of some stats to only be enabled if used
886 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
888 2009-08-30 Simon Goldschmidt
889 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
890 function" by checking for loopback before calling ip_frag
892 2009-08-25 Simon Goldschmidt
893 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
895 2009-08-23 Simon Goldschmidt
896 * ppp.c: bug #27078: Possible memory leak in pppInit()
898 2009-08-23 Simon Goldschmidt
899 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
902 2009-08-23 Simon Goldschmidt
903 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
904 Fixed wrong parenthesis, added check in init.c
906 2009-08-23 Simon Goldschmidt
907 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
909 2009-08-23 Simon Goldschmidt
910 * many ppp files: bug #27267: Added include to string.h where needed
912 2009-08-23 Simon Goldschmidt
913 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
920 2009-05-10 Simon Goldschmidt
921 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
922 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
923 one pbuf to help MACs that don't support scatter-gather DMA.
925 2009-05-09 Simon Goldschmidt
926 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
927 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
929 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
930 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
931 extended info about the currently received packet.
933 2009-04-27 Simon Goldschmidt
934 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
936 2009-04-25 Simon Goldschmidt
937 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
938 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
940 2009-04-21 Simon Goldschmidt
941 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
942 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
943 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
944 as an external function for lookup.
946 2009-04-15 Simon Goldschmidt
947 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
949 2009-03-31 Kieran Mansley
950 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
951 TCP timestamp options, off by default. Rework tcp_enqueue() to
952 take option flags rather than specified option data
954 2009-02-18 Simon Goldschmidt
955 * cc.h: Added printf formatter for size_t: SZT_F
957 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
958 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
961 2009-02-12 Simon Goldschmidt
962 * init.h: Added LWIP_VERSION to get the current version of the stack
964 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
965 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
966 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
969 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
970 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
971 is only used by UDPLITE at present, so conditionalise it.
973 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
974 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
975 "seed" address. This should reduce AUTOIP conflicts if
976 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
978 2008-10-02 Jonathan Larmour and Rishi Khan
979 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
982 2008-06-30 Simon Goldschmidt
983 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
984 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
985 mem_free to run between mem_malloc iterations. Added illegal counter for
988 2008-06-27 Simon Goldschmidt
989 * stats.h/.c, some other files: patch #6483: stats module improvement:
990 Added defines to display each module's statistic individually, added stats
991 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
993 2008-06-17 Simon Goldschmidt
994 * err.h: patch #6459: Made err_t overridable to use a more efficient type
995 (define LWIP_ERR_T in cc.h)
997 2008-06-17 Simon Goldschmidt
998 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1001 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1002 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1003 modified version of patch # 6370: Moved loopif code to netif.c so that
1004 loopback traffic is supported on all netifs (all local IPs).
1005 Added option to limit loopback packets for each netifs.
1009 2009-08-12 Kieran Mansley
1010 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1011 out of window or out of order properly
1013 2009-08-12 Kieran Mansley
1014 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1016 2009-07-28 Simon Goldschmidt
1017 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1019 2009-07-27 Kieran Mansley
1020 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1022 2009-07-09 Kieran Mansley
1023 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1024 recv_avail and don't increment counters until message successfully
1027 2009-06-25 Kieran Mansley
1028 * api_msg.c api.h: BUG26722: initialise netconn write variables
1031 2009-06-25 Kieran Mansley
1032 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1034 2009-06-25 Kieran Mansley
1035 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1036 simultaneous close behaviour, and make snd_nxt have the same meaning
1039 2009-05-12 Simon Goldschmidt
1040 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1041 arp_table / uses etharp_query" by adding etharp_gratuitous()
1043 2009-05-12 Simon Goldschmidt
1044 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1045 to the IP header (used by igmp_ip_output_if)
1047 2009-05-06 Simon Goldschmidt
1048 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1049 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1051 2009-05-05 Simon Goldschmidt
1052 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1055 2009-05-04 Simon Goldschmidt
1056 * init.c: snmp was not initialized in lwip_init()
1058 2009-05-04 Frédéric Bernon
1059 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1061 2009-05-03 Simon Goldschmidt
1062 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1063 (and unsent->next == NULL)
1065 2009-05-02 Simon Goldschmidt
1066 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1067 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1069 2009-05-02 Simon Goldschmidt
1070 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1072 2009-05-01 Simon Goldschmidt
1073 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1075 2009-05-01 Simon Goldschmidt
1076 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1078 2009-04-29 Frédéric Bernon
1079 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1080 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1081 of broadcast packets even when this option wasn't set. Port maintainers
1082 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1083 If you want this option also filter broadcast on recv operations, you also
1084 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1086 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1087 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1088 DHCP/AUTOIP cooperation
1090 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1091 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1092 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1093 right place in tcp_output and tcp_rexmit).
1095 2009-04-25 Simon Goldschmidt
1096 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1097 when debugging": memp_sizes contained the wrong sizes (including sanity
1098 regions); memp pools for MEM_USE_POOLS were too small
1100 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1101 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1102 behavior, with with ip address string not ended by a '\0', a space or a
1105 2009-04-19 Simon Goldschmidt
1106 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1107 pcb->err is called, not pcb->connected (with an error code).
1109 2009-04-19 Simon Goldschmidt
1110 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1111 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1113 2009-04-19 Simon Goldschmidt
1114 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1115 in the header pbuf, not the data pbuf)
1117 2009-04-18 Simon Goldschmidt
1118 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1120 2009-04-15 Simon Goldschmidt
1121 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1123 2009-04-15 Simon Goldschmidt
1124 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1126 2009-04-15 Simon Goldschmidt
1127 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1128 ip_hinted_output() (for smaller code mainly)
1130 2009-04-15 Simon Goldschmidt
1131 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1133 2009-04-15 Simon Goldschmidt
1134 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1135 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1136 is big enough in dhcp_start
1138 2009-04-15 Simon Goldschmidt
1139 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1141 2009-04-15 Simon Goldschmidt
1142 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1144 2009-04-15 Simon Goldschmidt
1145 * sockets.c: bug #26121: set_errno can be overridden
1147 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1148 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1151 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1152 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1155 2009-03-31 Kieran Mansley
1156 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1157 updates are calculated and sent (BUG20515)
1159 * tcp_in.c: cope with SYN packets received during established states,
1160 and retransmission of initial SYN.
1162 * tcp_out.c: set push bit correctly when tcp segments are merged
1164 2009-03-27 Kieran Mansley
1165 * tcp_out.c set window correctly on probes (correcting change made
1168 2009-03-26 Kieran Mansley
1169 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1170 connections where no reset required (bug #25622)
1172 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1175 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1176 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1177 too small depending on MEM_ALIGNMENT
1179 2009-02-16 Simon Goldschmidt
1180 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1181 converted size argument of netconn_write to 'size_t'
1183 2009-02-16 Simon Goldschmidt
1184 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1185 by moving accept callback function pointer to TCP_PCB_COMMON
1187 2009-02-12 Simon Goldschmidt
1188 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1191 2009-02-11 Simon Goldschmidt
1192 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1194 2009-02-11 Simon Goldschmidt
1195 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1196 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1198 2009-02-10 Simon Goldschmidt
1199 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1200 Accepts_pending is decrease on a corresponding listen pcb when a connection
1201 in state SYN_RCVD is close.
1203 2009-01-28 Jonathan Larmour
1204 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1207 2008-12-19 Simon Goldschmidt
1208 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1210 2008-12-10 Tamas Somogyi, Frédéric Bernon
1211 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1212 port uses deleted netbuf.
1214 2008-10-18 Simon Goldschmidt
1215 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1218 2008-10-15 Simon Goldschmidt
1219 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1220 by packing the struct ip_reass_helper.
1222 2008-10-03 David Woodhouse, Jonathan Larmour
1223 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1225 2008-10-02 Jonathan Larmour
1226 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1227 padding is included.
1229 2008-09-30 Jonathan Larmour
1230 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1231 assertion check that addrlen isn't NULL.
1233 2008-09-30 Jonathan Larmour
1234 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1236 2008-08-26 Simon Goldschmidt
1237 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1238 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1240 2008-08-14 Simon Goldschmidt
1241 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1242 tcp_close returns != ERR_OK)
1244 2008-07-08 Frédéric Bernon
1245 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1246 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1248 2008-06-24 Jonathan Larmour
1249 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1250 if tcp_seg_copy fails.
1252 2008-06-17 Simon Goldschmidt
1253 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1254 and created defines for swapping bytes and folding u32 to u16.
1256 2008-05-30 Kieran Mansley
1257 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1258 rather than rcv_ann_wnd when deciding if packets are in-window.
1259 Contributed by <arasmussen@consultant.datasys.swri.edu>
1261 2008-05-30 Kieran Mansley
1262 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1263 passing as function pointers when MEM_LIBC_MALLOC is defined.
1265 2008-05-09 Jonathan Larmour
1266 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1267 stop it being treated as a fatal error.
1269 2008-04-15 Simon Goldschmidt
1270 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1273 2008-03-27 Simon Goldschmidt
1274 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1275 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1276 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1277 or heap memory from interrupt context
1279 2008-03-26 Simon Goldschmidt
1280 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1281 host sent a zero mss as TCP option.
1288 2008-03-10 Jonathan Larmour
1289 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1290 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1292 2008-01-22 Frédéric Bernon
1293 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1294 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1296 2008-01-14 Frédéric Bernon
1297 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1298 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1299 tcp_recv callback (see rawapi.txt).
1301 2008-01-14 Frédéric Bernon, Marc Chaland
1302 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1304 2008-01-12 Frédéric Bernon
1305 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1306 netconn::sem per netconn::op_completed like suggested for the task #7490
1307 "Add return value to sys_mbox_post".
1309 2008-01-12 Frédéric Bernon
1310 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1311 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1312 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1314 2008-01-10 Frédéric Bernon
1315 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1316 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1317 "blocking" ("block" parameter = 1).
1319 2008-01-10 Frédéric Bernon
1320 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1321 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1322 "Add return value to sys_mbox_post".
1324 2008-01-05 Frédéric Bernon
1325 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1326 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1327 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1328 indicate the number of pointers query by the mailbox. There is three defines
1329 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1330 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1331 parameter in your implementation, but to ignore it to keep the previous behavior.
1332 The new sys_mbox_trypost function return a value to know if the mailbox is
1333 full or if the message is posted. Take a look to sys_arch.txt for more details.
1334 This new function is used in tcpip_input (so, can be called in an interrupt
1335 context since the function is not blocking), and in recv_udp and recv_raw.
1337 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1338 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1339 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1340 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1341 documentation in the rawapi.txt file.
1343 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1344 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1346 2007-12-31 Frédéric Bernon, Luca Ceresoli
1347 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1348 in autoip". The change in etharp_raw could be removed, since all calls to
1349 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1350 wrong in the future.
1352 2007-12-30 Frédéric Bernon, Tom Evans
1353 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1354 Filtering" reported by Tom Evans.
1356 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1357 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1358 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1359 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1360 keep accepting new connections.
1362 2007-12-13 Frédéric Bernon
1363 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1364 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1366 2007-12-12 Frédéric Bernon
1367 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1368 are the one which have ram usage.
1370 2007-12-05 Frédéric Bernon
1371 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1372 set of variables (=0) or a local one (=1). In this last case, your port should
1373 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1374 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1376 2007-12-03 Simon Goldschmidt
1377 * ip.c: ip_input: check if a packet is for inp first before checking all other
1378 netifs on netif_list (speeds up packet receiving in most cases)
1380 2007-11-30 Simon Goldschmidt
1381 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1382 UDP: move a (connected) pcb selected for input to the front of the list of
1383 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1386 2007-11-28 Simon Goldschmidt
1387 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1389 2007-11-25 Simon Goldschmidt
1390 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1393 2007-11-24 Simon Goldschmidt
1394 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1395 to the new file netdb.c; included lwip_getaddrinfo.
1397 2007-11-21 Simon Goldschmidt
1398 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1399 based on the MTU of the netif used to send. Enabled by default. Disable by
1400 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1402 2007-11-19 Frédéric Bernon
1403 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1404 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1405 copy dns payload to parse the response), return an error if there is no place
1406 for a new query, and fix some minor problems.
1408 2007-11-16 Simon Goldschmidt
1409 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1410 removed files: core/inet.c, core/inet6.c
1411 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1412 inet and chksum part; changed includes in all lwIP files as appropriate
1414 2007-11-16 Simon Goldschmidt
1415 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1416 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1417 (gethostbyname/gethostbyname_r).
1419 2007-11-15 Jim Pettinato, Frédéric Bernon
1420 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1421 requests with RAW api interface. Initialization is done in lwip_init() with
1422 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1423 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1424 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1425 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1426 list with points to improve.
1428 2007-11-06 Simon Goldschmidt
1429 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1430 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1431 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1433 2007-11-06 Simon Goldschmidt
1434 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1435 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1436 implementation from netconn api applications.
1438 2007-11-03 Frédéric Bernon
1439 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1440 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1441 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1442 it. This is a first release which have to be improve for TCP. Note it used the
1443 netconn::recv_avail which need to be more "thread-safe" (note there is already
1444 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1446 2007-11-01 Frédéric Bernon, Marc Chaland
1447 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1448 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1449 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1450 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1451 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1453 2007-10-24 Frédéric Bernon
1454 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1455 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1456 some code (like we have talk in "patch #5919 : Create compile switch to remove
1457 select code"), but it could be done later.
1459 2007-10-08 Simon Goldschmidt
1460 * many files: Changed initialization: many init functions are not needed any
1461 more since we now rely on the compiler initializing global and static
1464 2007-10-06 Simon Goldschmidt
1465 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1466 to enqueue the received pbufs so that multiple packets can be reassembled
1467 simultaneously and no static reassembly buffer is needed.
1469 2007-10-05 Simon Goldschmidt
1470 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1471 all netifs (or ports) can use it.
1473 2007-10-05 Frédéric Bernon
1474 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1475 common function to reduce a little bit the footprint (for all functions using
1476 only the "netif" parameter).
1478 2007-10-03 Frédéric Bernon
1479 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1480 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1481 a little bit the footprint (for all functions using only the "netif" parameter).
1483 2007-09-15 Frédéric Bernon
1484 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1485 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1486 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1487 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1489 2007-09-10 Frédéric Bernon
1490 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1491 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1492 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1493 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1494 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1495 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1496 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1497 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1498 when it's queried (any direct call to "sysuptime" is changed by a call to
1499 snmp_get_sysuptime).
1501 2007-09-09 Frédéric Bernon, Bill Florac
1502 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1503 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1504 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1505 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1506 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1507 the next query message to receive the matching multicast streams).
1509 2007-09-08 Frédéric Bernon
1510 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1511 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1512 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1513 Enable to access to these fields with LWIP_TCP=0.
1515 2007-09-05 Frédéric Bernon
1516 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1517 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1518 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1519 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1520 help to reduce footprint, and to reduce "visibility" on the Internet.
1522 2007-09-05 Frédéric Bernon, Bill Florac
1523 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1524 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1525 parameters have to be provided: a task name, and a task stack size. For this
1526 one, since it's platform dependant, you could define the best one for you in
1527 your lwipopts.h. For port maintainers, you can just add these new parameters
1528 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1531 2007-09-05 Frédéric Bernon
1532 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1533 inside init.c for task #7142 "Sanity check user-configurable values".
1535 2007-09-04 Frédéric Bernon, Bill Florac
1536 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1537 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1538 value). It will avoid potential fragmentation problems, use a counter to know
1539 how many times a group is used on an netif, and free it when all applications
1540 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1541 check if LWIP_IGMP!=0).
1543 2007-09-03 Frédéric Bernon
1544 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1545 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1546 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1547 and/or the "interface" field (for netconn layer), for join/leave operations.
1548 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1549 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1551 2007-08-30 Frédéric Bernon
1552 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1553 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1554 with other API (application based on raw API, or future "socket2" API). Ports
1555 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1557 2007-08-30 Frédéric Bernon, Jonathan Larmour
1558 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1559 user-configurable values".
1561 2007-08-29 Frédéric Bernon
1562 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1563 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1564 spirit than the others modules. Modify some IGMP debug traces.
1566 2007-08-29 Frédéric Bernon
1567 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1568 Add lwip_init function to regroup all modules initializations, and to provide
1569 a place to add code for task #7142 "Sanity check user-configurable values".
1570 Ports maintainers should remove direct initializations calls from their code,
1571 and add init.c in their makefiles. Note that lwip_init() function is called
1572 inside tcpip_init, but can also be used by raw api users since all calls are
1573 disabled when matching options are disabled. Also note that their is new options
1574 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1576 2007-08-26 Marc Boucher
1577 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1578 since they can under certain circumstances be called with an invalid conn
1579 pointer after the connection has been closed (and conn has been freed).
1581 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1582 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1583 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1585 2007-08-22 Frédéric Bernon
1586 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1587 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1589 2007-08-22 Frédéric Bernon
1590 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1591 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1592 name is tcpip_input (we keep the name of 1.2.0 function).
1594 2007-08-17 Jared Grubb
1595 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1596 settings into new memp_std.h and optional user file lwippools.h. This adds
1597 more dynamic mempools, and allows the user to create an arbitrary number of
1598 mempools for mem_malloc.
1600 2007-08-16 Marc Boucher
1601 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1602 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1603 close the connection.
1605 2007-08-16 Marc Boucher
1606 * sockets.c: lwip_accept(): check netconn_peer() error return.
1608 2007-08-16 Marc Boucher
1609 * mem.c, mem.h: Added mem_calloc().
1611 2007-08-16 Marc Boucher
1612 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1613 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1614 and starving other message types.
1615 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1617 2007-08-16 Marc Boucher
1618 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1619 type and flgs (later renamed to flags).
1620 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1621 Improved lwip_recvfrom(). TCP push now propagated.
1623 2007-08-16 Marc Boucher
1624 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1627 2007-08-16 Marc Boucher
1628 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1629 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1630 Added PPPoE support and various PPP improvements.
1632 2007-07-25 Simon Goldschmidt
1633 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1634 making netbuf_copy_partial use this function.
1636 2007-07-25 Simon Goldschmidt
1637 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1638 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1641 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1642 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1643 a link callback in the netif struct, and functions to handle it. Be carefull
1644 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1645 if you want to be sure to be compatible with future changes...
1647 2007-06-30 Frédéric Bernon
1648 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1650 2007-06-21 Simon Goldschmidt
1651 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1652 LWIP_AUTOIP =0 and =1 to remove redundant code.
1654 2007-06-21 Simon Goldschmidt
1655 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1656 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1657 heap. This both prevents memory fragmentation and gives a higher speed
1658 at the cost of more memory consumption. Turned off by default.
1660 2007-06-21 Simon Goldschmidt
1661 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1662 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1663 int to be able to send a bigger buffer than 64K with one time (mainly
1664 used from lwip_send).
1666 2007-06-21 Simon Goldschmidt
1667 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1668 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1670 2007-06-21 Simon Goldschmidt
1671 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1672 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1673 changes on low memory or empty send-buffer.
1675 2007-06-18 Simon Goldschmidt
1676 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1677 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1678 used for ethernet and struct eth_addr already had a defined length of 6).
1680 2007-06-17 Simon Goldschmidt
1681 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1682 to disable UDP checksum generation on transmit.
1684 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1685 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1686 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1687 this macro to check "conn" parameter in api_msg.c functions.
1689 2007-06-11 Simon Goldschmidt
1690 * sockets.c, sockets.h: Added UDP lite support for sockets
1692 2007-06-10 Simon Goldschmidt
1693 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1694 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1697 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1698 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1699 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1700 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1701 (see TODO mark in the source code).
1703 2007-06-09 Simon Goldschmidt
1704 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1705 etharp_output() to match netif->output so etharp_output() can be used
1706 directly as netif->output to save one function call.
1708 2007-06-08 Simon Goldschmidt
1709 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1710 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1711 added initialization of those to ethernetif, slipif and loopif.
1713 2007-05-18 Simon Goldschmidt
1714 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1715 (defaulting to off for now) that can be set to 0 to send fragmented
1716 packets by passing PBUF_REFs down the stack.
1718 2007-05-23 Frédéric Bernon
1719 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1720 connections, such present in patch #5959.
1722 2007-05-23 Frédéric Bernon
1723 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1724 code in only one part...
1726 2007-05-18 Simon Goldschmidt
1727 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1728 elements to overflow. This is achieved by adding some bytes before and after
1729 each pool element (increasing their size, of course), filling them with a
1730 prominent value and checking them on freeing the element.
1731 Set it to 2 to also check every element in every pool each time memp_malloc()
1732 or memp_free() is called (slower but more helpful).
1734 2007-05-10 Simon Goldschmidt
1735 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1736 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1739 2007-05-11 Frédéric Bernon
1740 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1741 Include a function pointer instead of a table index in the message to reduce
1742 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1743 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1745 2007-05-10 Simon Goldschmidt
1746 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1747 \ extern "C" {' in all header files. Now you can write your application using
1748 the lwIP stack in C++ and simply #include the core files. Note I have left
1749 out the netif/ppp/*h header files for now, since I don't know which files are
1750 included by applications and which are for internal use only.
1752 2007-05-09 Simon Goldschmidt
1753 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1754 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1755 situations where some compilers might inline the copy and save a function
1756 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1758 2007-05-08 Simon Goldschmidt
1759 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1760 to be overriden in case the C-library malloc implementation is not protected
1761 against concurrent access.
1763 2007-05-04 Simon Goldschmidt (Atte Kojo)
1764 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1765 multiple packets to the same host.
1767 2007-05-04 Frédéric Bernon, Jonathan Larmour
1768 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1769 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1770 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1771 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1772 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1773 these fields are now renamed "addr" & "port".
1775 2007-04-11 Jonathan Larmour
1776 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1777 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1778 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1779 by the port in sys_arch.h if desired.
1781 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1782 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1783 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1784 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1786 2007-04-05 Frédéric Bernon
1787 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1789 2007-04-04 Simon Goldschmidt
1790 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1791 use this for and architecture-independent form to tell the compiler you intentionally
1792 are not using this variable. Can be overriden in cc.h.
1794 2007-03-28 Frédéric Bernon
1795 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1796 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1797 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1798 It will be used by DHCP to register a client hostname, but can also be use when you call
1801 2007-03-28 Frédéric Bernon
1802 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1803 initialize a network interface's flag with. It tell this interface is an ethernet
1804 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1805 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1807 2007-03-26 Frédéric Bernon, Jonathan Larmour
1808 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1809 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1810 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1811 is done in tcpip_init function.
1813 2007-03-22 Frédéric Bernon
1814 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1815 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1816 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1817 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1818 but never used. Fix msg_in.c with the correct #if test for a stat display.
1820 2007-03-21 Kieran Mansley
1821 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1822 Provides callback on netif up/down state change.
1824 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1825 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1826 ip.c, netif.h, tcpip.c, opt.h:
1827 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1828 filter per all network interfaces. Declare a new function in netif to enable to
1829 control the MAC filter (to reduce lwIP traffic processing).
1831 2007-03-11 Frédéric Bernon
1832 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1833 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1834 unless you know what you're doing (default are RFC1122 compliant). Note
1835 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1837 2007-03-08 Frédéric Bernon
1838 * tcp.h: Keepalive values can be configured at compile time, but don't change
1839 this unless you know what you're doing (default are RFC1122 compliant).
1841 2007-03-08 Frédéric Bernon
1842 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1843 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1844 on UDP sockets/netconn.
1846 2007-03-08 Simon Goldschmidt
1847 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1849 2007-03-06 Frédéric Bernon
1850 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1851 Implement SO_RCVTIMEO on UDP sockets/netconn.
1853 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1854 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1855 on the stack and remove the API msg type from memp
1857 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1858 * sockets.h, sockets.c: Move socket initialization to new
1859 lwip_socket_init() function.
1860 NOTE: this changes the API with ports. Ports will have to be
1861 updated to call lwip_socket_init() now.
1863 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1864 * api_lib.c: Use memcpy in netbuf_copy_partial.
1869 2008-03-17 Frédéric Bernon, Ed Kerekes
1870 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1871 some problems to fill the IP header on some targets, use now the
1872 ip.h macros to do it).
1874 2008-03-13 Frédéric Bernon
1875 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1876 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1877 TCP connection caused a crash. Note that using (lwip_)recvfrom
1878 like this is a bit slow and that using (lwip)getpeername is the
1879 good lwip way to do it (so, using recv is faster on tcp sockets).
1881 2008-03-12 Frédéric Bernon, Jonathan Larmour
1882 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1883 recv_raw() does not consume data", and the ping sample (with
1884 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1885 returned the IP payload, without the IP header).
1887 2008-03-04 Jonathan Larmour
1888 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1889 and/or warnings on some systems where mem_size_t and size_t differ.
1890 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1892 2008-03-04 Kieran Mansley (contributions by others)
1893 * Numerous small compiler error/warning fixes from contributions to
1894 mailing list after 1.3.0 release candidate made.
1896 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1897 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1899 2008-01-15 Kieran Mansley
1900 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1901 prevented from sending by a small send window, not just a zero
1904 2008-01-09 Jonathan Larmour
1905 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1906 conflict with Linux system headers.
1908 2008-01-06 Jonathan Larmour
1909 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1910 address entirely on receiving a DHCPNAK, and restarting discovery.
1912 2007-12-21 Simon Goldschmidt
1913 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1914 is not protected" by using new macros for interlocked access to modify/test
1915 netconn->recv_avail.
1917 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1918 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1920 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1921 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1922 of silly window avoidance and prevent lwIP from shrinking the window)
1924 2007-12-04 Simon Goldschmidt
1925 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1926 data packet was lost): add assert that all segment lists are empty in
1927 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1928 state from LAST_ACK in tcp_process
1930 2007-12-02 Simon Goldschmidt
1931 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1932 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1933 has to be set to 0 in lwipopts.h
1935 2007-12-02 Simon Goldschmidt
1936 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1937 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1938 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1939 This is a fix for thread-safety and allocates all items needed for a netconn
1940 when the netconn is created.
1942 2007-11-30 Simon Goldschmidt
1943 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1944 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1945 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1946 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1948 2007-11-27 Simon Goldschmidt
1949 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1950 letting ip_route only use netifs that are up.
1952 2007-11-27 Simon Goldschmidt
1953 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1954 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1955 sockets block most operations once they have seen a fatal error.
1957 2007-11-27 Simon Goldschmidt
1958 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1959 netif to send as an argument (to be able to send on netifs that are down).
1961 2007-11-26 Simon Goldschmidt
1962 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1965 2007-11-21 Simon Goldschmidt
1966 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1967 Fixed the nagle algorithm; nagle now also works for all raw API applications
1968 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1970 2007-11-12 Frédéric Bernon
1971 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1972 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1973 context in do_getaddr.
1975 2007-11-10 Simon Goldschmidt
1976 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1977 happen any time). Now the packet simply isn't enqueued when out of memory.
1979 2007-11-01 Simon Goldschmidt
1980 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1981 TCP_MSS if that is smaller) as long as no MSS option is received from the
1984 2007-11-01 Simon Goldschmidt
1985 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1986 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1987 sending our configured TCP_MSS instead of the one received).
1989 2007-11-01 Simon Goldschmidt
1990 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1991 calculated based on the configured TCP_MSS, not on the MSS option received
1994 2007-10-09 Simon Goldschmidt
1995 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
1996 short and also was generated wrong if checksum coverage != tot_len;
1997 receive: checksum was calculated wrong if checksum coverage != tot_len
1999 2007-10-08 Simon Goldschmidt
2000 * mem.c: lfree was not updated in mem_realloc!
2002 2007-10-07 Frédéric Bernon
2003 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2004 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2005 this change cause an API breakage for netconn_addr, since a parameter
2006 type change. Any compiler should cause an error without any changes in
2007 yours netconn_peer calls (so, it can't be a "silent change"). It also
2008 reduce a little bit the footprint for socket layer (lwip_getpeername &
2009 lwip_getsockname use now a common lwip_getaddrname function since
2010 netconn_peer & netconn_addr have the same parameters).
2012 2007-09-20 Simon Goldschmidt
2013 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2014 by checking tcp_tw_pcbs also
2016 2007-09-19 Simon Goldschmidt
2017 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2019 2007-09-15 Mike Kleshov
2020 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2022 2007-09-06 Frédéric Bernon
2023 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2024 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2025 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2026 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2028 2007-08-30 Frédéric Bernon
2029 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2030 and fix some coding style.
2032 2007-08-28 Frédéric Bernon
2033 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2034 kind of packets. These packets are considered like Ethernet packets (payload
2035 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2036 are considered like IP packets (payload pointing to iphdr).
2038 2007-08-27 Frédéric Bernon
2039 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2040 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2041 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2043 2007-08-24 Kieran Mansley
2044 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2045 compiler (Paradigm C++)
2047 2007-08-09 Frédéric Bernon, Bill Florac
2048 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2049 Introduce IGMP_STATS to centralize statistics management.
2051 2007-08-09 Frédéric Bernon, Bill Florac
2052 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2053 packet on a udp pcb binded on an netif's IP address, and not on "any".
2055 2007-08-09 Frédéric Bernon, Bill Florac
2056 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2057 This is mainly on using lookup/lookfor, and some coding styles...
2059 2007-07-26 Frédéric Bernon (and "thedoctor")
2060 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2062 2007-07-25 Simon Goldschmidt
2063 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2064 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2065 (tcp_output is called again later from tcp timers).
2067 2007-07-25 Simon Goldschmidt
2068 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2069 copy_from_pbuf, which illegally modified the given pbuf.
2071 2007-07-25 Simon Goldschmidt
2072 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2073 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2075 2007-07-24 Simon Goldschmidt
2076 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2077 correct state (must be CLOSED).
2079 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2080 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2081 allocation. It now returns NULL.
2083 2007-07-13 Frédéric Bernon
2084 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2087 2007-07-13 Frédéric Bernon
2088 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2089 because current code doesn't follow rawapi.txt documentation.
2091 2007-07-13 Kieran Mansley
2092 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2093 out of sequence processing of received packets
2095 2007-07-03 Simon Goldschmidt
2096 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2097 assumption is made that this pbuf is in one piece (i.e. not chained). These
2098 assumptions clash with the possibility of converting to fully pool-based
2099 pbuf implementations, where PBUF_RAM pbufs might be chained.
2101 2007-07-03 Simon Goldschmidt
2102 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2103 when closing tcp netconns: removed conn->sem, less context switches when
2104 closing, both netconn_close and netconn_delete should safely close tcp
2107 2007-07-02 Simon Goldschmidt
2108 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2109 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2110 to cache ARP table indices with each pcb instead of single-entry cache for
2113 2007-07-02 Simon Goldschmidt
2114 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2115 warnings when assigning to smaller types.
2117 2007-06-28 Simon Goldschmidt
2118 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2120 2007-06-28 Simon Goldschmidt
2121 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2122 a segment contained chained pbufs)
2124 2007-06-28 Frédéric Bernon
2125 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2126 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2127 possible to define this macro in your own lwipopts.h to always use C library's
2128 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2130 2007-06-28 Frédéric Bernon
2131 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2132 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2133 in api_lib/api_msg (use pointers and not type with table, etc...)
2135 2007-06-26 Simon Goldschmidt
2136 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2138 2007-06-25 Simon Goldschmidt
2139 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2140 for udp packets with no matching pcb.
2142 2007-06-25 Simon Goldschmidt
2143 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2144 could get udp input packets if the remote side matched.
2146 2007-06-13 Simon Goldschmidt
2147 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2148 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2150 2007-06-13 Simon Goldschmidt
2151 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2152 -> netconn_new_..() does not allocate a new connection for unsupported
2155 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2156 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2157 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2159 2007-06-13 Frédéric Bernon, Matthias Weisser
2160 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2161 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2162 some macro names collision with some OS macros.
2164 2007-06-11 Simon Goldschmidt
2165 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2166 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2167 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2170 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2171 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2172 where TCP flags wasn't initialized in tcp_keepalive.
2174 2007-06-03 Simon Goldschmidt
2175 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2176 registered, p->payload was modified without modifying p->len if sending
2177 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2179 2007-06-03 Simon Goldschmidt
2180 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2181 re-used the input pbuf even if that didn't have enough space to include the
2182 link headers. Now the space is tested and a new pbuf is allocated for the
2183 echo response packet if the echo request pbuf isn't big enough.
2185 2007-06-01 Simon Goldschmidt
2186 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2188 2007-05-23 Frédéric Bernon
2189 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2190 allocated by do_listen if success) and netconn_accept errors handling. In
2191 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2192 by ASSERT, except for netconn_delete.
2194 2007-05-23 Frédéric Bernon
2195 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2196 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2197 directly close the recvmbox).
2199 2007-05-22 Simon Goldschmidt
2200 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2201 bound but unconnected (and non-listening) tcp_pcbs.
2203 2007-05-22 Frédéric Bernon
2204 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2205 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2206 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2207 like "sys_timeout" in their application threads.
2209 2007-05-22 Frédéric Bernon
2210 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2211 which parameters are used by which do_xxx function, and to avoid "misusing"
2212 parameters (patch #5938).
2214 2007-05-22 Simon Goldschmidt
2215 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2216 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2217 is only 8 bits wide. This affects the api, as there, the protocol was
2220 2007-05-18 Simon Goldschmidt
2221 * memp.c: addition to patch #5913: smaller pointer was returned but
2222 memp_memory was the same size -> did not save memory.
2224 2007-05-16 Simon Goldschmidt
2225 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2228 2007-05-16 Simon Goldschmidt
2229 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2230 as the one of the netif used for sending to prevent sending from old
2231 addresses after a netif address gets changed (partly fixes bug #3168).
2233 2007-05-16 Frédéric Bernon
2234 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2235 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2236 tcpip_init) because we have to be sure that network interfaces are already
2237 added (mac filter is updated only in igmp_init for the moment).
2239 2007-05-16 Simon Goldschmidt
2240 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2241 into sys_arch_sem_wait calls to prevent timers from running while waiting
2242 for the heap. This fixes bug #19167.
2244 2007-05-13 Simon Goldschmidt
2245 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2246 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2249 2007-05-07 Simon Goldschmidt
2250 * mem.c: Another attempt to fix bug #17922.
2252 2007-05-04 Simon Goldschmidt
2253 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2254 implementation so that it can be reused (don't allocate the target
2255 pbuf inside pbuf_copy()).
2257 2007-05-04 Simon Goldschmidt
2258 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2259 to save a little RAM (next pointer of memp is not used while not in pool).
2262 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2265 2007-04-23 Simon Goldschmidt
2266 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2267 in NULL reference for incoming TCP packets". Loopif has to be configured
2268 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2269 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2270 putting packets on a list that is fed to the stack by calling loopif_poll()
2271 (single-thread / NO_SYS / polling environment where e.g.
2272 netif->input() = ip_input).
2274 2007-04-17 Jonathan Larmour
2275 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2276 the difference between two u16_t's.
2277 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2278 MEMP_NUM_NETCONN in sockets.c right now.
2280 2007-04-12 Jonathan Larmour
2281 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2283 2007-04-12 Kieran Mansley
2284 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2285 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2287 2007-04-11 Simon Goldschmidt
2288 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2289 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2290 pbuf.c: removed functions no needed any more (by etharp).
2292 2007-04-11 Kieran Mansley
2293 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2294 "Constant is long" warnings with 16bit compilers. Contributed by
2295 avatar@mmlab.cse.yzu.edu.tw
2297 2007-04-05 Frédéric Bernon, Jonathan Larmour
2298 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2299 the mailbox is active". Now, the post is only done during a connect, and do_send,
2300 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2302 2007-04-03 Frédéric Bernon
2303 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2304 packets. See patch #5834.
2306 2007-03-30 Frédéric Bernon
2307 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2308 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2310 2007-03-30 Frédéric Bernon
2311 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2312 others environment defines (these were too "generic").
2314 2007-03-28 Frédéric Bernon
2315 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2316 result and can cause a crash. lwip_send now check netbuf_ref result.
2318 2007-03-28 Simon Goldschmidt
2319 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2320 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2321 defined. This is the way it should have been already (looking at
2324 2007-03-28 Kieran Mansley
2325 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2326 IP and TCP headers *and* physical link headers
2328 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2329 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2330 to send some garbage. It is not a definitive solution, but the patch does solve
2331 the problem for most cases.
2333 2007-03-22 Frédéric Bernon
2334 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2336 2007-03-22 Frédéric Bernon
2337 * api_lib.c: somes resources couldn't be freed if there was errors during
2338 netconn_new_with_proto_and_callback.
2340 2007-03-22 Frédéric Bernon
2341 * ethernetif.c: update netif->input calls to check return value. In older ports,
2342 it's a good idea to upgrade them, even if before, there could be another problem
2343 (access to an uninitialized mailbox).
2345 2007-03-21 Simon Goldschmidt
2346 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2347 by casting to unsigned).
2349 2007-03-21 Frédéric Bernon
2350 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2351 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2352 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2353 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2354 faster and more reliable communication between api_lib and tcpip.
2356 2007-03-21 Frédéric Bernon
2357 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2359 2007-03-21 Frédéric Bernon
2360 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2362 2007-03-21 Kieran Mansley
2363 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2366 2007-03-21 Kieran Mansley
2367 * Fix all uses of pbuf_header to check the return value. In some
2368 cases just assert if it fails as I'm not sure how to fix them, but
2369 this is no worse than before when they would carry on regardless
2372 2007-03-21 Kieran Mansley
2373 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2374 comment out missing header include in icmp.c
2376 2007-03-20 Frédéric Bernon
2377 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2378 synchronized with memp.h.
2380 2007-03-20 Frédéric Bernon
2381 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2382 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2383 network interfaces. Also fix a compiler warning.
2385 2007-03-20 Kieran Mansley
2386 * udp.c: Only try and use pbuf_header() to make space for headers if
2387 not a ROM or REF pbuf.
2389 2007-03-19 Frédéric Bernon
2390 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2393 2007-03-19 Frédéric Bernon
2394 * Remove unimplemented "memp_realloc" function from memp.h.
2396 2007-03-11 Simon Goldschmidt
2397 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2400 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2401 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2402 (missing `const' qualifier in socket functions), to get more compatible to
2403 standard POSIX sockets.
2405 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2406 * sockets.c: Add asserts inside bind, connect and sendto to check input
2407 parameters. Remove excessive set_errno() calls after get_socket(), because
2408 errno is set inside of get_socket(). Move last sock_set_errno() inside
2411 2007-03-09 Simon Goldschmidt
2412 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2413 was allocated too small.
2415 2007-03-06 Simon Goldschmidt
2416 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2417 the stack from concurrent access.
2419 2007-03-06 Frédéric Bernon, Dmitry Potapov
2420 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2421 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2423 2007-03-06 Simon Goldschmidt
2424 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2425 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2427 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2428 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2429 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2430 Allow to do ARP processing for incoming packets inside tcpip_thread
2431 (protecting ARP layer against concurrent access). You can also disable
2432 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2433 Older ports have to use tcpip_ethinput.
2435 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2436 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2437 from pointer target type"
2439 2007-03-05 Frédéric Bernon
2440 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2441 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2443 2007-03-04 Frédéric Bernon
2444 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2447 2007-03-04 Frédéric Bernon
2448 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2450 The api_msg struct stay on the stack (not moved to netconn struct).
2452 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2453 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2454 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2455 Also fixed cast warning in pbuf_alloc()
2457 2007-03-04 Simon Goldschmidt
2458 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2459 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2461 2007-03-03 Frédéric Bernon
2462 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2463 It is static, and never used in udp.c except udp_init().
2465 2007-03-02 Simon Goldschmidt
2466 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2467 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2468 initialized before tcpip_thread is running (e.g. before OS is started)
2470 2007-03-02 Frédéric Bernon
2471 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2474 2007-02-28 Kieran Mansley
2475 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2476 outside the region of the pbuf by pbuf_header()
2478 2007-02-28 Kieran Mansley
2479 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2480 when supplied timeout is also non-zero
2484 2006-12-05 Leon Woestenberg
2485 * CHANGELOG: Mention STABLE-1.2.0 release.
2489 2006-12-01 Christiaan Simons
2490 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2491 Note this is a workaround. Currently I have no other options left.
2493 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2494 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2495 to include/lwip/opt.h.
2496 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2497 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2498 * opt.h: Add above new options.
2500 2006-08-18 Christiaan Simons
2501 * tcp_{in,out}.c: added SNMP counters.
2502 * ipv4/ip.c: added SNMP counters.
2503 * ipv4/ip_frag.c: added SNMP counters.
2505 2006-08-08 Christiaan Simons
2506 * etharp.{c,h}: added etharp_find_addr() to read
2507 (stable) ethernet/IP address pair from ARP table
2509 2006-07-14 Christiaan Simons
2510 * mib_structs.c: added
2511 * include/lwip/snmp_structs.h: added
2512 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2514 2006-07-06 Christiaan Simons
2515 * snmp/asn1_{enc,dec}.c added
2517 * snmp/msg_{in,out}.c added
2518 * include/lwip/snmp_asn1.h added
2519 * include/lwip/snmp_msg.h added
2520 * doc/snmp_agent.txt added
2522 2006-03-29 Christiaan Simons
2523 * inet.c, inet.h: Added platform byteswap support.
2524 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2525 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2529 2006-11-30 Christiaan Simons
2530 * dhcp.c: Fixed false triggers of request_timeout.
2532 2006-11-28 Christiaan Simons
2533 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2535 2006-10-11 Christiaan Simons
2536 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2537 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2538 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2539 identifier from 170 to 136 (bug #17574).
2541 2006-10-10 Christiaan Simons
2542 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2544 2006-08-17 Christiaan Simons
2545 * udp.c: Fixed bug #17200, added check for broadcast
2546 destinations for PCBs bound to a unicast address.
2548 2006-08-07 Christiaan Simons
2549 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2551 2006-06-27 Christiaan Simons
2552 * api_msg.c: Applied patch for cold case (bug #11135).
2553 In accept_function() ensure newconn->callback is always initialized.
2555 2006-06-15 Christiaan Simons
2556 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2557 facilitate printing of mem_size_t and u16_t statistics.
2559 2006-06-14 Christiaan Simons
2560 * api_msg.c: Applied patch #5146 to handle allocation failures
2561 in accept() by Kevin Lawson.
2563 2006-05-26 Christiaan Simons
2564 * api_lib.c: Removed conn->sem creation and destruction
2565 from netconn_write() and added sys_sem_new to netconn_new_*.
2569 2006-03-03 Christiaan Simons
2570 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2571 access and added pbuf_alloc() return value checks.
2573 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2574 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2575 now handled by the checksum routine properly.
2577 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2578 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2579 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2581 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2582 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2583 submitted by Mitrani Hiroshi.
2585 2005-12-15 Christiaan Simons
2586 * inet.c: Disabled the added summing routine to preserve code space.
2588 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2589 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2590 Added Curt McDowell's optimized checksumming routine for future
2591 inclusion. Need to create test case for unaliged, aligned, odd,
2592 even length combination of cases on various endianess machines.
2594 2005-12-09 Christiaan Simons
2595 * inet.c: Rewrote standard checksum routine in proper portable C.
2597 2005-11-25 Christiaan Simons
2598 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2599 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2600 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2602 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2603 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2604 routine by Peter Jolasson.
2605 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2607 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2608 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2609 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2611 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2612 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2614 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2615 * udp.c: UDP pcb->recv() was called even when it was NULL.
2619 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2620 * etharp.*: Disabled multiple packets on the ARP queue.
2621 This clashes with TCP queueing.
2623 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2624 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2625 Halved the ARP period, doubled the period counts.
2626 ETHARP_MAX_PENDING now should be at least 2. This prevents
2627 the counter from reaching 0 right away (which would allow
2628 too little time for ARP responses to be received).
2630 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2631 * dhcp.c: Decline messages were not multicast but unicast.
2632 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2633 Do not try hard to insert arbitrary packet's source address,
2634 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2635 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2636 querying an address will see it appear in the cache (DHCP could
2637 suffer from this when a server invalidly gave an in-use address.)
2638 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2639 comparing network addresses (identifiers), not the network masks
2641 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2642 IP address actually belongs to the network of the given interface.
2644 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2645 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2649 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2650 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2651 even if one is already pending, if the rcv_wnd is above a threshold
2652 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2653 delayed ACK in order to open the window if the stack is only receiving data.
2655 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2656 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2658 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2659 * etharp.c: Make sure the first pbuf queued on an ARP entry
2660 is properly ref counted.
2662 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2663 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2664 warnings about comparison.
2665 * pbuf.c: Stopped compiler complaining of empty if statement
2666 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2667 * tcp.c: Stopped compiler complaining of empty if statement
2668 when LWIP_DEBUGF() empty.
2669 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2670 * inet.c: Added a couple of casts to quiet the compiler.
2671 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2673 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2674 * inet.c: Made data types consistent in inet_ntoa().
2675 Added casts for return values of checksum routines, to pacify compiler.
2676 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2677 Small corrections to some debugging statements, to pacify compiler.
2679 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2680 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2681 * ethernetif.c Updated low_level_output() to match prototype for
2682 netif->linkoutput and changed low_level_input() similarly for consistency.
2683 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2684 of raw_recv() in raw.h and so avoid compiler error.
2685 * sockets.c: Added trivial (int) cast to keep compiler happier.
2686 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2692 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2693 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2694 your cc.h file defines this either 1 or 0. If non-defined,
2696 * .c: Added <string.h> and <errno.h> includes where used.
2697 * etharp.c: Made some array indices unsigned.
2699 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2700 * netif.*: Added netif_set_up()/down().
2701 * dhcp.c: Changes to restart program flow.
2703 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2704 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2705 single-pass lookup for different candidates. Should exploit locality.
2707 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2708 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2709 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2710 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2711 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2715 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2716 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2717 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2718 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2719 is to prefix the 14-bit Ethernet headers with two padding bytes.
2721 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2722 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2723 * etharp.c: Fixed the case where the packet that initiates the ARP request
2724 is not queued, and gets lost. Fixed the case where the packets destination
2725 address is already known; we now always queue the packet and perform an ARP
2732 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2733 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2734 * Fixed two possible NULL references in rare cases.
2740 * Fixed DHCP which did not include the IP address in DECLINE messages.
2744 * etharp.c has been hauled over a bit.
2750 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2751 * Packets sent from ARP queue had invalid source hardware address.
2755 * Pass-by ARP requests do now update the cache.
2759 * No longer dependent on ctype.h.
2760 * New socket options.
2761 * Raw IP pcb support.
2767 * Some debug formatters and casts fixed.
2768 * Numereous fixes in PPP.
2772 * DEBUGF now is LWIP_DEBUGF
2773 * pbuf_dechain() has been re-enabled.
2774 * Mentioned the changed use of CVS branches in README.
2780 * Fixed pool pbuf memory leak in pbuf_alloc().
2781 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2782 Reported by Savin Zlobec.
2784 * PBUF_POOL chains had their tot_len field not set for non-first
2785 pbufs. Fixed in pbuf_alloc().
2789 * Added PPP stack contributed by Marc Boucher
2793 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2795 * ARP queueuing now queues the latest packet instead of the first.
2796 This is the RFC recommended behaviour, but can be overridden in
2803 * TCP has been fixed to deal with the new use of the pbuf->ref
2806 * DHCP dhcp_inform() crash bug fixed.
2810 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2811 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2812 Implemented by David Haas.
2818 * The packet buffer implementation has been enhanced to support
2819 zero-copy and copy-on-demand for packet buffers which have their
2820 payloads in application-managed memory.
2821 Implemented by David Haas.
2823 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2824 if an outgoing packet can be directly sent on the link, or perform
2825 a copy-on-demand when necessary.
2827 The application can safely assume the packet is sent, and the RAM
2828 is available to the application directly after calling udp_send()
2829 or similar function.
2833 * ARP_QUEUEING should now correctly work for all cases, including
2835 Implemented by Leon Woestenberg.
2839 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2840 to a '0.0.0.0' IP address.
2842 * The packet buffer implementation is changed. The pbuf->ref counter
2843 meaning has changed, and several pbuf functions have been
2844 adapted accordingly.
2846 * netif drivers have to be changed to set the hardware address length field
2847 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2848 See the contrib/ports/c16x cs8900 driver as a driver example.
2850 * netif's have a dhcp field that must be initialized to NULL by the driver.
2851 See the contrib/ports/c16x cs8900 driver as a driver example.
2853 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2854 logged in CVS but have not been explained here.
2856 (0.5.3) Changes since version 0.5.2
2860 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2861 threads because it wasn't protected by semaphores.
2865 * struct ip_addr now packed.
2867 * The name of the time variable in arp.c has been changed to ctime
2868 to avoid conflicts with the time() function.
2870 (0.5.2) Changes since version 0.5.1
2874 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2878 * A bug in tcp_parseopt() could cause the stack to hang because of a
2879 malformed TCP option.
2881 * The address of new connections in the accept() function in the BSD
2882 socket library was not handled correctly.
2884 * pbuf_dechain() did not update the ->tot_len field of the tail.
2886 * Aborted TCP connections were not handled correctly in all
2891 * All protocol header structs are now packed.
2893 * The ->len field in the tcp_seg structure now counts the actual
2894 amount of data, and does not add one for SYN and FIN segments.
2896 (0.5.1) Changes since version 0.5.0
2900 * Possible to run as a user process under Linux.
2902 * Preliminary support for cross platform packed structs.
2904 * ARP timer now implemented.
2908 * TCP output queue length was badly initialized when opening
2911 * TCP delayed ACKs were not sent correctly.
2913 * Explicit initialization of BSS segment variables.
2915 * read() in BSD socket library could drop data.
2917 * Problems with memory alignment.
2919 * Situations when all TCP buffers were used could lead to
2922 * TCP MSS option wasn't parsed correctly.
2924 * Problems with UDP checksum calculation.
2926 * IP multicast address tests had endianess problems.
2928 * ARP requests had wrong destination hardware address.
2932 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2934 * A ->linkoutput() member was added to struct netif.
2936 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2938 * ntoh* macros are now null definitions for big endian CPUs.
2940 (0.5.0) Changes since version 0.4.2
2944 * Redesigned operating system emulation layer to make porting easier.
2946 * Better control over TCP output buffers.
2948 * Documenation added.
2952 * Locking issues in buffer management.
2954 * Bugfixes in the sequential API.
2956 * IP forwarding could cause memory leakage. This has been fixed.
2960 * Directory structure somewhat changed; the core/ tree has been
2963 (0.4.2) Changes since version 0.4.1
2967 * Experimental ARP implementation added.
2969 * Skeleton Ethernet driver added.
2971 * Experimental BSD socket API library added.
2975 * In very intense situations, memory leakage could occur. This has
2980 * Variables named "data" and "code" have been renamed in order to
2981 avoid name conflicts in certain compilers.
2983 * Variable++ have in appliciable cases been translated to ++variable
2984 since some compilers generate better code in the latter case.
2986 (0.4.1) Changes since version 0.4
2990 * TCP: Connection attempts time out earlier than data
2991 transmissions. Nagle algorithm implemented. Push flag set on the
2992 last segment in a burst.
2994 * UDP: experimental support for UDP-Lite extensions.
2998 * TCP: out of order segments were in some cases handled incorrectly,
2999 and this has now been fixed. Delayed acknowledgements was broken
3000 in 0.4, has now been fixed. Binding to an address that is in use
3001 now results in an error. Reset connections sometimes hung an
3002 application; this has been fixed.
3004 * Checksum calculation sometimes failed for chained pbufs with odd
3005 lengths. This has been fixed.
3007 * API: a lot of bug fixes in the API. The UDP API has been improved
3008 and tested. Error reporting and handling has been
3009 improved. Logical flaws and race conditions for incoming TCP
3010 connections has been found and removed.
3012 * Memory manager: alignment issues. Reallocating memory sometimes
3013 failed, this has been fixed.
3015 * Generic library: bcopy was flawed and has been fixed.
3019 * API: all datatypes has been changed from generic ones such as
3020 ints, to specified ones such as u16_t. Functions that return
3021 errors now have the correct type (err_t).
3023 * General: A lot of code cleaned up and debugging code removed. Many
3024 portability issues have been fixed.
3026 * The license was changed; the advertising clause was removed.
3030 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3031 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3034 (0.4) Changes since version 0.3.1
3036 * Memory management has been radically changed; instead of
3037 allocating memory from a shared heap, memory for objects that are
3038 rapidly allocated and deallocated is now kept in pools. Allocation
3039 and deallocation from those memory pools is very fast. The shared
3040 heap is still present but is used less frequently.
3042 * The memory, memory pool, and packet buffer subsystems now support
3043 4-, 2-, or 1-byte alignment.
3045 * "Out of memory" situations are handled in a more robust way.
3047 * Stack usage has been reduced.
3049 * Easier configuration of lwIP parameters such as memory usage,
3050 TTLs, statistics gathering, etc. All configuration parameters are
3051 now kept in a single header file "lwipopts.h".
3053 * The directory structure has been changed slightly so that all
3054 architecture specific files are kept under the src/arch
3057 * Error propagation has been improved, both in the protocol modules
3060 * The code for the RTXC architecture has been implemented, tested
3063 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3064 the Internet checksum modules.
3066 * Bugs related to porting between a 32-bit and a 16-bit architecture
3067 have been found and corrected.
3069 * The license has been changed slightly to conform more with the
3070 original BSD license, including the advertisement clause.
3072 (0.3.1) Changes since version 0.3
3074 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3075 RAM never returned the RAM when the pbuf was deallocated.
3077 * TCP congestion control, window updates and retransmissions did not
3078 work correctly. This has now been fixed.
3080 * Bugfixes in the API.
3082 (0.3) Changes since version 0.2
3084 * New and improved directory structure. All include files are now
3085 kept in a dedicated include/ directory.
3087 * The API now has proper error handling. A new function,
3088 netconn_err(), now returns an error code for the connection in
3091 * Improvements in the memory management subsystem. The system now
3092 keeps a pointer to the lowest free memory block. A new function,
3093 mem_malloc2() tries to allocate memory once, and if it fails tries
3094 to free some memory and retry the allocation.
3096 * Much testing has been done with limited memory
3097 configurations. lwIP now does a better job when overloaded.
3099 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3101 * Many bugfixes in the TCP code:
3103 - Fixed a bug in tcp_close().
3105 - The TCP receive window was incorrectly closed when out of
3106 sequence segments was received. This has been fixed.
3108 - Connections are now timed-out of the FIN-WAIT-2 state.
3110 - The initial congestion window could in some cases be too
3111 large. This has been fixed.
3113 - The retransmission queue could in some cases be screwed up. This
3116 - TCP RST flag now handled correctly.
3118 - Out of sequence data was in some cases never delivered to the
3119 application. This has been fixed.
3121 - Retransmitted segments now contain the correct acknowledgment
3122 number and advertised window.
3124 - TCP retransmission timeout backoffs are not correctly computed
3125 (ala BSD). After a number of retransmissions, TCP now gives up
3128 * TCP connections now are kept on three lists, one for active
3129 connections, one for listening connections, and one for
3130 connections that are in TIME-WAIT. This greatly speeds up the fast
3131 timeout processing for sending delayed ACKs.
3133 * TCP now provides proper feedback to the application when a
3134 connection has been successfully set up.
3136 * More comments have been added to the code. The code has also been
3137 somewhat cleaned up.
3139 (0.2) Initial public release.