5 * [Enter new changes just after this line - do not remove this line]
9 2011-08-26: Simon Goldschmidt
10 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
11 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
13 2011-07-21: Simon Goldschmidt (patch by hanhui)
14 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
15 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
16 Also added code to allow ip_forward() to forward non-broadcast packets to
17 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
19 2011-07-21: Simon Goldschmidt
20 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
21 ioctl/FIONREAD return the size of the next pending datagram.
23 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
24 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
27 2011-05-25: Simon Goldschmidt
28 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
29 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
30 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
31 code so that the code is more readable.
33 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
34 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
35 Ivan! (this is work in progress: we're just post release anyway :-)
37 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
38 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
44 2011-08-24: Simon Goldschmidt
45 * sockets.h: fixed bug #34057 socklen_t should be a typedef
47 2011-08-24: Simon Goldschmidt
48 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
50 2011-08-24: Simon Goldschmidt
51 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
53 2011-08-24: Simon Goldschmidt
54 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
56 2011-08-22: Simon Goldschmidt
57 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
58 merely prevents nagle from not transmitting fast after closing.)
60 2011-07-22: Simon Goldschmidt
61 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
62 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
63 lwip_send() sends as much as possible for non-blocking sockets
65 2011-07-22: Simon Goldschmidt
66 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
67 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
68 at regular intervals from main level.
70 2011-07-21: Simon Goldschmidt
71 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
72 sending an ARP request when an ARP entry is used in the last minute before
75 2011-07-04: Simon Goldschmidt
76 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
78 2011-06-26: Simon Goldschmidt
79 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
80 updating its documentation only.
82 2011-06-26: Simon Goldschmidt
83 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
86 2011-06-26: Simon Goldschmidt
87 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
95 2011-03-27: Simon Goldschmidt
96 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
97 calculate it in tcp_zero_window_probe (the only place where it was used).
99 2010-11-21: Simon Goldschmidt
100 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
103 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
104 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
105 IP_MULTICAST_LOOP at socket- and raw-API level.
107 2010-06-16: Simon Goldschmidt
108 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
109 link-layer-addressed UDP traffic to be received while a netif is down (just
110 like DHCP during configuration)
112 2010-05-22: Simon Goldschmidt
113 * many many files: bug #27352: removed packing from ip_addr_t, the packed
114 version is now only used in protocol headers. Added global storage for
115 current src/dest IP address while in input functions.
117 2010-05-16: Simon Goldschmidt
118 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
119 calculation (and use them throughout the stack where applicable)
121 2010-05-16: Simon Goldschmidt
122 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
123 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
125 2010-05-16: Simon Goldschmidt
126 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
127 MEMP pool instead of the heap
129 2010-05-13: Simon Goldschmidt
130 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
131 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
132 packets to more than one pcb.
134 2010-05-02: Simon Goldschmidt
135 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
136 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
138 2010-04-30: Simon Goldschmidt
139 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
140 take a precalculated checksum, added pbuf_fill_chksum() to copy data
141 into a pbuf and at the same time calculating the checksum for that data
143 2010-04-29: Simon Goldschmidt
144 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
145 2-byte-aligned IP addresses and MAC addresses
147 2010-04-28: Patch by Bill Auerbach
148 * ip.c: Inline generating IP checksum to save a function call
150 2010-04-14: Simon Goldschmidt
151 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
152 tcpip_thread processes messages or timeouts to implement a watchdog.
154 2010-03-28: Simon Goldschmidt
155 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
156 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
158 2010-03-27: Simon Goldschmidt
159 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
160 etharp_query to prevent unnecessary function calls (inspired by
163 2010-03-20: Simon Goldschmidt
164 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
165 since the linker cannot do this automatically to save space.
167 2010-03-20: Simon Goldschmidt
168 * opt.h, etharp.c/.h: Added support for static ARP table entries
170 2010-03-14: Simon Goldschmidt
171 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
172 when creating TCP segments, not when (re-)transmitting them.
174 2010-03-07: Simon Goldschmidt
175 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
176 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
177 This should speed up receiving data on sockets as the select code in
178 event_callback is only executed when select is waiting.
180 2010-03-06: Simon Goldschmidt
181 * tcp_out.c: task #7013 (Create option to have all packets delivered to
182 netif->output in one piece): Always copy to try to create single pbufs
185 2010-03-06: Simon Goldschmidt
186 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
187 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
188 for tcp netconns to receive pbufs, not netbufs; use that function
191 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
192 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
193 Work on tcp_enqueue: Don't waste memory when chaining segments,
194 added option TCP_OVERSIZE to prevent creating many small pbufs when
195 calling tcp_write with many small blocks of data. Instead, pbufs are
196 allocated larger than needed and the space is used for later calls to
199 2010-02-21: Simon Goldschmidt
200 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
203 2010-02-21: Simon Goldschmidt
204 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
205 implementation of tcp to make API usage cleare to application programmers
207 2010-02-14: Simon Goldschmidt/Stephane Lesage
208 * ip_addr.h: Improved some defines working on ip addresses, added faster
209 macro to copy addresses that cannot be NULL
211 2010-02-13: Simon Goldschmidt
212 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
213 blocking send operation)
215 2010-02-12: Simon Goldschmidt
216 * sockets.c/.h: Added a minimal version of posix fctl() to have a
217 standardised way to set O_NONBLOCK for nonblocking sockets.
219 2010-02-12: Simon Goldschmidt
220 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
221 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
222 and dhcp work with user-allocated structs instead of callin mem_malloc
224 2010-02-12: Simon Goldschmidt/Jeff Barber
225 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
226 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
228 2010-02-12: Simon Goldschmidt
229 * sys layer: task #10139 (Prefer statically allocated memory): converted
230 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
231 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
232 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
233 to let sys.h use binary semaphores instead of mutexes - as before)
235 2010-02-09: Simon Goldschmidt (Simon Kallweit)
236 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
237 (Restart system timeout handling)
239 2010-02-09: Simon Goldschmidt
240 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
241 netif.c) - loopif does not have to be created by the port any more,
242 just define LWIP_HAVE_LOOPIF to 1.
244 2010-02-08: Simon Goldschmidt
245 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
246 inet_ntoa_r/ipaddr_ntoa_r
248 2010-02-08: Simon Goldschmidt
249 * netif.h: Added netif_s/get_igmp_mac_filter() macros
251 2010-02-05: Simon Goldschmidt
252 * netif.h: Added function-like macros to get/set the hostname on a netif
254 2010-02-04: Simon Goldschmidt
255 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
256 make changing the actual implementation behind the typedef easier.
258 2010-02-01: Simon Goldschmidt
259 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
260 for allocating memory when getaddrinfo() is called.
262 2010-01-31: Simon Goldschmidt
263 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
264 them once instead of parsing for every option. This also removes
265 the need for mem_malloc from dhcp_recv and makes it possible to
266 correctly retrieve the BOOTP file.
268 2010-01-30: simon Goldschmidt
269 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
272 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
273 * api.h, api_msg.c, sockets.c: Added except set support in select
276 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
277 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
278 Add non-blocking support for connect (partly from patch #6860),
279 plus many cleanups in socket & netconn API.
281 2010-01-27: Simon Goldschmidt
282 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
283 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
285 2010-01-26: Simon Goldschmidt
286 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
288 2010-01-14: Simon Goldschmidt
289 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
290 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
292 2010-01-13: Simon Goldschmidt
293 * mem.c: The heap now may be moved to user-defined memory by defining
294 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
295 (patch #6966 and bug #26133)
297 2010-01-10: Simon Goldschmidt (Bill Auerbach)
298 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
301 2010-01-10: Simon Goldschmidt
302 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
303 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
305 2009-12-31: Simon Goldschmidt
306 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
307 added timers.c/.h: Separated timer implementation from semaphore/mbox
308 implementation, moved timer implementation to timers.c/.h, timers are
309 now only called from tcpip_thread or by explicitly checking them.
312 2009-12-27: Simon Goldschmidt
313 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
314 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
319 2011-04-20: Simon Goldschmidt
320 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
322 2011-04-13: Simon Goldschmidt
323 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
324 using ports in the IANA private/dynamic range (49152 through 65535).
326 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
327 * etharp.h/.c: Fixed broken VLAN support.
329 2011-03-27: Simon Goldschmidt
330 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
331 pcbs) by checking if the pcb was bound (local_port != 0).
333 2011-03-27: Simon Goldschmidt
334 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
336 2011-03-27: Simon Goldschmidt
337 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
338 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
340 2011-03-27: Simon Goldschmidt
341 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
342 is present never times out) by starting retransmission timer before checking
345 2011-03-22: Simon Goldschmidt
346 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
347 calling sio_read_abort() if the file descriptor is valid.
349 2011-03-14: Simon Goldschmidt
350 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
351 more than once can render a socket useless) since it mainly involves changing
352 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
354 2011-03-13: Simon Goldschmidt
355 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
356 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
357 use EALRADY instead of -1
359 2011-03-13: Simon Goldschmidt
360 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
361 connection has been aborted by err_tcp (since this is not a normal closing
364 2011-03-13: Simon Goldschmidt
365 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
366 with pcb->state != CLOSED
368 2011-02-17: Simon Goldschmidt
369 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
372 2011-02-17: Simon Goldschmidt
373 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
375 2011-01-24: Simon Goldschmidt
376 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
378 2010-12-02: Simon Goldschmidt
379 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
381 2010-11-23: Simon Goldschmidt
382 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
383 LWIP_SO_RCVBUF and ioctl/FIONREAD.
385 2010-11-23: Simon Goldschmidt
386 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
387 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
389 2010-11-23: Simon Goldschmidt
390 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
391 refusing 'refused_data' again.
393 2010-11-22: Simon Goldschmidt
394 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
395 after a successful nonblocking connection.
397 2010-11-22: Simon Goldschmidt
398 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
399 must be sent link-local
401 2010-11-22: Simon Goldschmidt
402 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
405 2010-11-20: Simon Goldschmidt
406 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
408 2010-11-20: Simon Goldschmidt
409 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
410 resemble other stacks.
412 2010-11-20: Simon Goldschmidt
413 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
414 no-copy TCP writes will never succeed.
416 2010-11-20: Simon Goldschmidt
417 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
418 not match documentation: return ERR_ARG instead of ERR_VAL if not
419 initialized or wrong argument.
421 2010-10-20: Simon Goldschmidt
422 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
424 2010-10-05: Simon Goldschmidt
425 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
426 replugging the network cable after an AutoIP address was assigned.
428 2010-08-10: Simon Goldschmidt
429 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
431 2010-08-03: Simon Goldschmidt
432 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
434 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
435 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
436 endian architectures)
438 2010-07-28: Simon Goldschmidt
439 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
442 2010-07-27: Simon Goldschmidt
443 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
444 harm but never did anything
446 2010-07-21: Simon Goldschmidt
447 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
450 2010-07-16: Kieran Mansley
451 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
453 2010-07-10: Simon Goldschmidt
454 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
456 2010-06-30: Simon Goldschmidt
457 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
460 2010-06-28: Kieran Mansley
461 * timers.c remove unportable printing of C function pointers
463 2010-06-24: Simon Goldschmidt
464 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
465 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
467 2010-06-24: Simon Goldschmidt
468 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
469 implemented shutdown at socket level.
471 2010-06-21: Simon Goldschmidt
472 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
473 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
474 custom pbufs that reference other (original) pbufs. Additionally set
475 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
477 2010-06-15: Simon Goldschmidt
478 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
480 2010-06-14: Simon Goldschmidt
481 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
483 2010-06-12: Simon Goldschmidt
484 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
487 2010-05-17: Simon Goldschmidt
488 * netdb.c: Correctly NULL-terminate h_addr_list
490 2010-05-16: Simon Goldschmidt
491 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
492 "symbol already defined" i.e. when linking to winsock
494 2010-05-05: Simon Goldschmidt
495 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
498 2010-04-21: Simon Goldschmidt
499 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
502 2010-03-28: Luca Ceresoli
503 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
505 2010-03-27: Luca Ceresoli
506 * mib2.c: patch #7130: remove meaningless const qualifiers
508 2010-03-26: Simon Goldschmidt
509 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
511 2010-03-26: Simon Goldschmidt
512 * various files: Fixed compiling with different options disabled (TCP/UDP),
513 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
515 2010-03-25: Simon Goldschmidt
516 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
518 2010-03-25: Simon Goldschmidt
519 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
520 overrunning our rcv_wnd in ooseq case.
522 2010-03-22: Simon Goldschmidt
523 * tcp.c: tcp_listen() did not copy the pcb's prio.
525 2010-03-19: Simon Goldschmidt
526 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
528 2010-03-14: Simon Goldschmidt
529 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
530 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
531 and basing PBUF_LINK_HLEN on it.
533 2010-03-08: Simon Goldschmidt
534 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
535 when assiging routable address): when checking incoming packets and
536 aborting existing connection on address change, filter out link-local
539 2010-03-06: Simon Goldschmidt
540 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
542 2010-03-06: Simon Goldschmidt
543 * ipv4/ip.c: Don't try to forward link-local addresses
545 2010-03-06: Simon Goldschmidt
546 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
549 2010-03-05: Simon Goldschmidt
550 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
553 2010-03-05: Simon Goldschmidt
554 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
555 into multiple calls to tcp_write.
557 2010-02-21: Simon Goldschmidt
558 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
559 the implementation of DNS_USES_STATIC_BUF==1)
561 2010-02-20: Simon Goldschmidt
562 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
563 close() vs. shutdown(). Now the application does not get any more
564 recv callbacks after calling tcp_close(). Added tcp_shutdown().
566 2010-02-19: Simon Goldschmidt
567 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
568 confusion with realloc()
570 2010-02-15: Simon Goldschmidt/Stephane Lesage
571 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
574 2010-02-14: Simon Goldschmidt
575 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
576 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
577 admin-status of a netif are up
579 2010-02-14: Simon Goldschmidt
580 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
581 reception and is not really necessary
583 2010-02-14: Simon Goldschmidt
584 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
585 request was directed as us (RFC 826, Packet Reception), otherwise
586 only update existing entries; internalized some functions
588 2010-02-14: Simon Goldschmidt
589 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
590 disabled on netif used for PPPoE) by adding a new netif flag
591 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
592 device but prevents usage of ARP (so that ethernet_input can be used
595 2010-02-12: Simon Goldschmidt
596 * netif.c: netif_set_link_up/down: only do something if the link state
599 2010-02-12: Simon Goldschmidt/Stephane Lesage
600 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
603 2010-02-12: Simon Goldschmidt
604 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
606 2010-02-09: Simon Goldschmidt
607 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
608 (recv() makes receive window update for data that wasn't received by
611 2010-02-09: Simon Goldschmidt/Stephane Lesage
612 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
613 or any netconn_recv() error)
615 2010-02-09: Simon Goldschmidt
616 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
618 2010-02-09: Simon Goldschmidt
619 * netif.c: For loopback packets, adjust the stats- and snmp-counters
620 for the loopback netif.
622 2010-02-08: Simon Goldschmidt
623 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
624 since they are not used anywhere else.
626 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
627 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
628 (patch from bug #28798)
630 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
631 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
632 another bug when LWIP_RAND() returns zero.
634 2010-02-04: Simon Goldschmidt
635 * nearly every file: Use macros defined in ip_addr.h (some of them new)
636 to work with IP addresses (preparation for bug #27352 - Change ip_addr
637 from struct to typedef (u32_t) - and better code).
639 2010-01-31: Simon Goldschmidt
640 * netif.c: Don't call the link-callback from netif_set_up/down() since
641 this invalidly retriggers DHCP.
643 2010-01-29: Simon Goldschmidt
644 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
645 portability file inet.h and its contents from the stack: moved htonX-
646 functions to def.h (and the new def.c - they are not ipv4 dependent),
647 let inet.h depend on ip_addr.h and not the other way round.
648 This fixes bug #28732.
650 2010-01-28: Kieran Mansley
651 * tcp.c: Ensure ssthresh >= 2*MSS
653 2010-01-27: Simon Goldschmidt
654 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
655 callback can lead to accessing unallocated memory. As a consequence,
656 ERR_ABRT means the application has called tcp_abort()!
658 2010-01-25: Simon Goldschmidt
659 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
660 not implemented in SNMP): write-only or not-accessible are still
661 returned by getnext (though not by get)
663 2010-01-24: Simon Goldschmidt
664 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
665 not use reserved C/C++ keywords
667 2010-01-23: Simon Goldschmidt
668 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
671 2010-01-21: Simon Goldschmidt
672 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
673 if tcp_enqueue fails) both in raw- and netconn-API
675 2010-01-19: Simon Goldschmidt
676 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
678 2010-01-18: Iordan Neshev/Simon Goldschmidt
679 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
680 bugfix backports from 2.4.x.
682 2010-01-18: Simon Goldschmidt
683 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
685 2010-01-17: Simon Goldschmidt
686 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
687 task #10102: "netconn: clean up conn->err threading issues" by adding
688 error return value to struct api_msg_msg
690 2010-01-17: Simon Goldschmidt
691 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
692 to return err_t (bugs #27709 and #28087)
694 2010-01-14: Simon Goldschmidt
695 * ...: Use typedef for function prototypes throughout the stack.
697 2010-01-13: Simon Goldschmidt
698 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
699 window = 0) by correctly draining recvmbox/acceptmbox
701 2010-01-11: Simon Goldschmidt
702 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
703 erroneous callbacks) by copying the code from recent pppd
705 2010-01-10: Simon Goldschmidt
706 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
708 2010-01-10: Simon Goldschmidt
709 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
711 2010-01-08: Simon Goldschmidt
712 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
714 2010-01-08: Simon Goldschmidt
715 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
716 passed to dns_local_addhost() might be volatile
718 2010-01-07: Simon Goldschmidt
719 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
721 2010-01-06: Simon Goldschmidt
722 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
724 2009-12-31: Simon Goldschmidt
725 * many ppp files: Reorganised PPP source code from ucip structure to pppd
726 structure to easily compare our code against the pppd code (around v2.3.1)
728 2009-12-27: Simon Goldschmidt
729 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
737 2009-10-27 Simon Goldschmidt/Stephan Lesage
738 * netifapi.c/.h: Added netifapi_netif_set_addr()
740 2009-10-07 Simon Goldschmidt/Fabian Koch
741 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
742 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
744 2009-08-26 Simon Goldschmidt/Simon Kallweit
745 * slipif.c/.h: bug #26397: SLIP polling support
747 2009-08-25 Simon Goldschmidt
748 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
749 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
751 2009-08-25 Simon Goldschmidt
752 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
754 2009-08-24 Jakob Stoklund Olesen
755 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
756 to netif_set_link_up().
758 2009-08-23 Simon Goldschmidt
759 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
760 to a human-readable string.
764 2009-12-24: Kieran Mansley
765 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
768 2009-12-06: Simon Goldschmidt
769 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
770 be statically allocated (like in ucip)
772 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
773 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
775 2009-12-03: Simon Goldschmidt
776 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
777 could have non-zero length
779 2009-12-02: Simon Goldschmidt
780 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
781 tcp_input_pcb until after calling the pcb's callbacks
783 2009-11-29: Simon Goldschmidt
784 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
785 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
787 2009-11-29: Simon Goldschmidt
788 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
789 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
791 2009-11-26: Simon Goldschmidt
792 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
795 2009-11-26: Simon Goldschmidt
796 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
797 algorithm at PCB level
799 2009-11-22: Simon Goldschmidt
800 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
802 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
803 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
804 reusing time-wait pcb
806 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
807 * sockets.c: Fixed bug #28062: Data received directly after accepting
808 does not wake up select
810 2009-11-11: Simon Goldschmidt
811 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
813 2009-10-30: Simon Goldschmidt
814 * opt.h: Increased default value for TCP_MSS to 536, updated default
815 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
817 2009-10-28: Kieran Mansley
818 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
819 to follow algorithm from TCP/IP Illustrated
821 2009-10-27: Kieran Mansley
822 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
824 2009-10-25: Simon Goldschmidt
825 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
826 pcb->recv is NULL to keep rcv_wnd correct)
828 2009-10-25: Simon Goldschmidt
829 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
831 2009-10-23: Simon Goldschmidt (David Empson)
832 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
834 2009-10-21: Simon Goldschmidt
835 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
836 trailing 1 byte len (SYN/FIN)
838 2009-10-21: Simon Goldschmidt
839 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
841 2009-10-19: Simon Goldschmidt
842 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
843 conditional code to assert where applicable), check pbuf length before
844 testing for valid reply
846 2009-10-19: Simon Goldschmidt
847 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
848 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
850 2009-10-16: Simon Goldschmidt
851 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
852 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
855 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
856 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
858 2009-10-15: Simon Goldschmidt
859 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
862 2009-10-15: Simon Goldschmidt
863 * autoip.c: Fixed bug #27704: autoip starts with wrong address
864 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
865 of network byte order
867 2009-10-11 Simon Goldschmidt (Jörg Kesten)
868 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
869 which are not consecutive when retransmitting unacked segments
871 2009-10-09 Simon Goldschmidt
872 * opt.h: Fixed default values of some stats to only be enabled if used
873 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
875 2009-08-30 Simon Goldschmidt
876 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
877 function" by checking for loopback before calling ip_frag
879 2009-08-25 Simon Goldschmidt
880 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
882 2009-08-23 Simon Goldschmidt
883 * ppp.c: bug #27078: Possible memory leak in pppInit()
885 2009-08-23 Simon Goldschmidt
886 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
889 2009-08-23 Simon Goldschmidt
890 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
891 Fixed wrong parenthesis, added check in init.c
893 2009-08-23 Simon Goldschmidt
894 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
896 2009-08-23 Simon Goldschmidt
897 * many ppp files: bug #27267: Added include to string.h where needed
899 2009-08-23 Simon Goldschmidt
900 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
907 2009-05-10 Simon Goldschmidt
908 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
909 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
910 one pbuf to help MACs that don't support scatter-gather DMA.
912 2009-05-09 Simon Goldschmidt
913 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
914 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
916 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
917 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
918 extended info about the currently received packet.
920 2009-04-27 Simon Goldschmidt
921 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
923 2009-04-25 Simon Goldschmidt
924 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
925 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
927 2009-04-21 Simon Goldschmidt
928 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
929 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
930 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
931 as an external function for lookup.
933 2009-04-15 Simon Goldschmidt
934 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
936 2009-03-31 Kieran Mansley
937 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
938 TCP timestamp options, off by default. Rework tcp_enqueue() to
939 take option flags rather than specified option data
941 2009-02-18 Simon Goldschmidt
942 * cc.h: Added printf formatter for size_t: SZT_F
944 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
945 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
948 2009-02-12 Simon Goldschmidt
949 * init.h: Added LWIP_VERSION to get the current version of the stack
951 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
952 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
953 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
956 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
957 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
958 is only used by UDPLITE at present, so conditionalise it.
960 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
961 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
962 "seed" address. This should reduce AUTOIP conflicts if
963 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
965 2008-10-02 Jonathan Larmour and Rishi Khan
966 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
969 2008-06-30 Simon Goldschmidt
970 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
971 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
972 mem_free to run between mem_malloc iterations. Added illegal counter for
975 2008-06-27 Simon Goldschmidt
976 * stats.h/.c, some other files: patch #6483: stats module improvement:
977 Added defines to display each module's statistic individually, added stats
978 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
980 2008-06-17 Simon Goldschmidt
981 * err.h: patch #6459: Made err_t overridable to use a more efficient type
982 (define LWIP_ERR_T in cc.h)
984 2008-06-17 Simon Goldschmidt
985 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
988 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
989 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
990 modified version of patch # 6370: Moved loopif code to netif.c so that
991 loopback traffic is supported on all netifs (all local IPs).
992 Added option to limit loopback packets for each netifs.
996 2009-08-12 Kieran Mansley
997 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
998 out of window or out of order properly
1000 2009-08-12 Kieran Mansley
1001 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1003 2009-07-28 Simon Goldschmidt
1004 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1006 2009-07-27 Kieran Mansley
1007 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1009 2009-07-09 Kieran Mansley
1010 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1011 recv_avail and don't increment counters until message successfully
1014 2009-06-25 Kieran Mansley
1015 * api_msg.c api.h: BUG26722: initialise netconn write variables
1018 2009-06-25 Kieran Mansley
1019 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1021 2009-06-25 Kieran Mansley
1022 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1023 simultaneous close behaviour, and make snd_nxt have the same meaning
1026 2009-05-12 Simon Goldschmidt
1027 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1028 arp_table / uses etharp_query" by adding etharp_gratuitous()
1030 2009-05-12 Simon Goldschmidt
1031 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1032 to the IP header (used by igmp_ip_output_if)
1034 2009-05-06 Simon Goldschmidt
1035 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1036 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1038 2009-05-05 Simon Goldschmidt
1039 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1042 2009-05-04 Simon Goldschmidt
1043 * init.c: snmp was not initialized in lwip_init()
1045 2009-05-04 Frédéric Bernon
1046 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1048 2009-05-03 Simon Goldschmidt
1049 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1050 (and unsent->next == NULL)
1052 2009-05-02 Simon Goldschmidt
1053 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1054 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1056 2009-05-02 Simon Goldschmidt
1057 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1059 2009-05-01 Simon Goldschmidt
1060 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1062 2009-05-01 Simon Goldschmidt
1063 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1065 2009-04-29 Frédéric Bernon
1066 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1067 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1068 of broadcast packets even when this option wasn't set. Port maintainers
1069 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1070 If you want this option also filter broadcast on recv operations, you also
1071 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1073 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1074 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1075 DHCP/AUTOIP cooperation
1077 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1078 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1079 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1080 right place in tcp_output and tcp_rexmit).
1082 2009-04-25 Simon Goldschmidt
1083 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1084 when debugging": memp_sizes contained the wrong sizes (including sanity
1085 regions); memp pools for MEM_USE_POOLS were too small
1087 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1088 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1089 behavior, with with ip address string not ended by a '\0', a space or a
1092 2009-04-19 Simon Goldschmidt
1093 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1094 pcb->err is called, not pcb->connected (with an error code).
1096 2009-04-19 Simon Goldschmidt
1097 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1098 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1100 2009-04-19 Simon Goldschmidt
1101 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1102 in the header pbuf, not the data pbuf)
1104 2009-04-18 Simon Goldschmidt
1105 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1107 2009-04-15 Simon Goldschmidt
1108 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1110 2009-04-15 Simon Goldschmidt
1111 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1113 2009-04-15 Simon Goldschmidt
1114 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1115 ip_hinted_output() (for smaller code mainly)
1117 2009-04-15 Simon Goldschmidt
1118 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1120 2009-04-15 Simon Goldschmidt
1121 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1122 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1123 is big enough in dhcp_start
1125 2009-04-15 Simon Goldschmidt
1126 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1128 2009-04-15 Simon Goldschmidt
1129 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1131 2009-04-15 Simon Goldschmidt
1132 * sockets.c: bug #26121: set_errno can be overridden
1134 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1135 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1138 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1139 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1142 2009-03-31 Kieran Mansley
1143 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1144 updates are calculated and sent (BUG20515)
1146 * tcp_in.c: cope with SYN packets received during established states,
1147 and retransmission of initial SYN.
1149 * tcp_out.c: set push bit correctly when tcp segments are merged
1151 2009-03-27 Kieran Mansley
1152 * tcp_out.c set window correctly on probes (correcting change made
1155 2009-03-26 Kieran Mansley
1156 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1157 connections where no reset required (bug #25622)
1159 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1162 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1163 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1164 too small depending on MEM_ALIGNMENT
1166 2009-02-16 Simon Goldschmidt
1167 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1168 converted size argument of netconn_write to 'size_t'
1170 2009-02-16 Simon Goldschmidt
1171 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1172 by moving accept callback function pointer to TCP_PCB_COMMON
1174 2009-02-12 Simon Goldschmidt
1175 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1178 2009-02-11 Simon Goldschmidt
1179 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1181 2009-02-11 Simon Goldschmidt
1182 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1183 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1185 2009-02-10 Simon Goldschmidt
1186 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1187 Accepts_pending is decrease on a corresponding listen pcb when a connection
1188 in state SYN_RCVD is close.
1190 2009-01-28 Jonathan Larmour
1191 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1194 2008-12-19 Simon Goldschmidt
1195 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1197 2008-12-10 Tamas Somogyi, Frédéric Bernon
1198 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1199 port uses deleted netbuf.
1201 2008-10-18 Simon Goldschmidt
1202 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1205 2008-10-15 Simon Goldschmidt
1206 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1207 by packing the struct ip_reass_helper.
1209 2008-10-03 David Woodhouse, Jonathan Larmour
1210 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1212 2008-10-02 Jonathan Larmour
1213 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1214 padding is included.
1216 2008-09-30 Jonathan Larmour
1217 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1218 assertion check that addrlen isn't NULL.
1220 2008-09-30 Jonathan Larmour
1221 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1223 2008-08-26 Simon Goldschmidt
1224 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1225 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1227 2008-08-14 Simon Goldschmidt
1228 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1229 tcp_close returns != ERR_OK)
1231 2008-07-08 Frédéric Bernon
1232 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1233 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1235 2008-06-24 Jonathan Larmour
1236 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1237 if tcp_seg_copy fails.
1239 2008-06-17 Simon Goldschmidt
1240 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1241 and created defines for swapping bytes and folding u32 to u16.
1243 2008-05-30 Kieran Mansley
1244 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1245 rather than rcv_ann_wnd when deciding if packets are in-window.
1246 Contributed by <arasmussen@consultant.datasys.swri.edu>
1248 2008-05-30 Kieran Mansley
1249 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1250 passing as function pointers when MEM_LIBC_MALLOC is defined.
1252 2008-05-09 Jonathan Larmour
1253 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1254 stop it being treated as a fatal error.
1256 2008-04-15 Simon Goldschmidt
1257 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1260 2008-03-27 Simon Goldschmidt
1261 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1262 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1263 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1264 or heap memory from interrupt context
1266 2008-03-26 Simon Goldschmidt
1267 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1268 host sent a zero mss as TCP option.
1275 2008-03-10 Jonathan Larmour
1276 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1277 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1279 2008-01-22 Frédéric Bernon
1280 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1281 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1283 2008-01-14 Frédéric Bernon
1284 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1285 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1286 tcp_recv callback (see rawapi.txt).
1288 2008-01-14 Frédéric Bernon, Marc Chaland
1289 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1291 2008-01-12 Frédéric Bernon
1292 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1293 netconn::sem per netconn::op_completed like suggested for the task #7490
1294 "Add return value to sys_mbox_post".
1296 2008-01-12 Frédéric Bernon
1297 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1298 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1299 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1301 2008-01-10 Frédéric Bernon
1302 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1303 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1304 "blocking" ("block" parameter = 1).
1306 2008-01-10 Frédéric Bernon
1307 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1308 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1309 "Add return value to sys_mbox_post".
1311 2008-01-05 Frédéric Bernon
1312 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1313 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1314 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1315 indicate the number of pointers query by the mailbox. There is three defines
1316 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1317 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1318 parameter in your implementation, but to ignore it to keep the previous behavior.
1319 The new sys_mbox_trypost function return a value to know if the mailbox is
1320 full or if the message is posted. Take a look to sys_arch.txt for more details.
1321 This new function is used in tcpip_input (so, can be called in an interrupt
1322 context since the function is not blocking), and in recv_udp and recv_raw.
1324 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1325 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1326 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1327 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1328 documentation in the rawapi.txt file.
1330 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1331 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1333 2007-12-31 Frédéric Bernon, Luca Ceresoli
1334 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1335 in autoip". The change in etharp_raw could be removed, since all calls to
1336 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1337 wrong in the future.
1339 2007-12-30 Frédéric Bernon, Tom Evans
1340 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1341 Filtering" reported by Tom Evans.
1343 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1344 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1345 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1346 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1347 keep accepting new connections.
1349 2007-12-13 Frédéric Bernon
1350 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1351 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1353 2007-12-12 Frédéric Bernon
1354 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1355 are the one which have ram usage.
1357 2007-12-05 Frédéric Bernon
1358 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1359 set of variables (=0) or a local one (=1). In this last case, your port should
1360 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1361 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1363 2007-12-03 Simon Goldschmidt
1364 * ip.c: ip_input: check if a packet is for inp first before checking all other
1365 netifs on netif_list (speeds up packet receiving in most cases)
1367 2007-11-30 Simon Goldschmidt
1368 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1369 UDP: move a (connected) pcb selected for input to the front of the list of
1370 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1373 2007-11-28 Simon Goldschmidt
1374 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1376 2007-11-25 Simon Goldschmidt
1377 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1380 2007-11-24 Simon Goldschmidt
1381 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1382 to the new file netdb.c; included lwip_getaddrinfo.
1384 2007-11-21 Simon Goldschmidt
1385 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1386 based on the MTU of the netif used to send. Enabled by default. Disable by
1387 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1389 2007-11-19 Frédéric Bernon
1390 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1391 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1392 copy dns payload to parse the response), return an error if there is no place
1393 for a new query, and fix some minor problems.
1395 2007-11-16 Simon Goldschmidt
1396 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1397 removed files: core/inet.c, core/inet6.c
1398 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1399 inet and chksum part; changed includes in all lwIP files as appropriate
1401 2007-11-16 Simon Goldschmidt
1402 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1403 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1404 (gethostbyname/gethostbyname_r).
1406 2007-11-15 Jim Pettinato, Frédéric Bernon
1407 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1408 requests with RAW api interface. Initialization is done in lwip_init() with
1409 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1410 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1411 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1412 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1413 list with points to improve.
1415 2007-11-06 Simon Goldschmidt
1416 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1417 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1418 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1420 2007-11-06 Simon Goldschmidt
1421 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1422 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1423 implementation from netconn api applications.
1425 2007-11-03 Frédéric Bernon
1426 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1427 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1428 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1429 it. This is a first release which have to be improve for TCP. Note it used the
1430 netconn::recv_avail which need to be more "thread-safe" (note there is already
1431 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1433 2007-11-01 Frédéric Bernon, Marc Chaland
1434 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1435 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1436 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1437 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1438 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1440 2007-10-24 Frédéric Bernon
1441 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1442 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1443 some code (like we have talk in "patch #5919 : Create compile switch to remove
1444 select code"), but it could be done later.
1446 2007-10-08 Simon Goldschmidt
1447 * many files: Changed initialization: many init functions are not needed any
1448 more since we now rely on the compiler initializing global and static
1451 2007-10-06 Simon Goldschmidt
1452 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1453 to enqueue the received pbufs so that multiple packets can be reassembled
1454 simultaneously and no static reassembly buffer is needed.
1456 2007-10-05 Simon Goldschmidt
1457 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1458 all netifs (or ports) can use it.
1460 2007-10-05 Frédéric Bernon
1461 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1462 common function to reduce a little bit the footprint (for all functions using
1463 only the "netif" parameter).
1465 2007-10-03 Frédéric Bernon
1466 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1467 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1468 a little bit the footprint (for all functions using only the "netif" parameter).
1470 2007-09-15 Frédéric Bernon
1471 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1472 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1473 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1474 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1476 2007-09-10 Frédéric Bernon
1477 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1478 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1479 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1480 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1481 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1482 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1483 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1484 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1485 when it's queried (any direct call to "sysuptime" is changed by a call to
1486 snmp_get_sysuptime).
1488 2007-09-09 Frédéric Bernon, Bill Florac
1489 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1490 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1491 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1492 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1493 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1494 the next query message to receive the matching multicast streams).
1496 2007-09-08 Frédéric Bernon
1497 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1498 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1499 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1500 Enable to access to these fields with LWIP_TCP=0.
1502 2007-09-05 Frédéric Bernon
1503 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1504 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1505 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1506 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1507 help to reduce footprint, and to reduce "visibility" on the Internet.
1509 2007-09-05 Frédéric Bernon, Bill Florac
1510 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1511 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1512 parameters have to be provided: a task name, and a task stack size. For this
1513 one, since it's platform dependant, you could define the best one for you in
1514 your lwipopts.h. For port maintainers, you can just add these new parameters
1515 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1518 2007-09-05 Frédéric Bernon
1519 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1520 inside init.c for task #7142 "Sanity check user-configurable values".
1522 2007-09-04 Frédéric Bernon, Bill Florac
1523 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1524 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1525 value). It will avoid potential fragmentation problems, use a counter to know
1526 how many times a group is used on an netif, and free it when all applications
1527 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1528 check if LWIP_IGMP!=0).
1530 2007-09-03 Frédéric Bernon
1531 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1532 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1533 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1534 and/or the "interface" field (for netconn layer), for join/leave operations.
1535 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1536 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1538 2007-08-30 Frédéric Bernon
1539 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1540 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1541 with other API (application based on raw API, or future "socket2" API). Ports
1542 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1544 2007-08-30 Frédéric Bernon, Jonathan Larmour
1545 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1546 user-configurable values".
1548 2007-08-29 Frédéric Bernon
1549 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1550 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1551 spirit than the others modules. Modify some IGMP debug traces.
1553 2007-08-29 Frédéric Bernon
1554 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1555 Add lwip_init function to regroup all modules initializations, and to provide
1556 a place to add code for task #7142 "Sanity check user-configurable values".
1557 Ports maintainers should remove direct initializations calls from their code,
1558 and add init.c in their makefiles. Note that lwip_init() function is called
1559 inside tcpip_init, but can also be used by raw api users since all calls are
1560 disabled when matching options are disabled. Also note that their is new options
1561 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1563 2007-08-26 Marc Boucher
1564 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1565 since they can under certain circumstances be called with an invalid conn
1566 pointer after the connection has been closed (and conn has been freed).
1568 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1569 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1570 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1572 2007-08-22 Frédéric Bernon
1573 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1574 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1576 2007-08-22 Frédéric Bernon
1577 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1578 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1579 name is tcpip_input (we keep the name of 1.2.0 function).
1581 2007-08-17 Jared Grubb
1582 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1583 settings into new memp_std.h and optional user file lwippools.h. This adds
1584 more dynamic mempools, and allows the user to create an arbitrary number of
1585 mempools for mem_malloc.
1587 2007-08-16 Marc Boucher
1588 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1589 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1590 close the connection.
1592 2007-08-16 Marc Boucher
1593 * sockets.c: lwip_accept(): check netconn_peer() error return.
1595 2007-08-16 Marc Boucher
1596 * mem.c, mem.h: Added mem_calloc().
1598 2007-08-16 Marc Boucher
1599 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1600 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1601 and starving other message types.
1602 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1604 2007-08-16 Marc Boucher
1605 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1606 type and flgs (later renamed to flags).
1607 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1608 Improved lwip_recvfrom(). TCP push now propagated.
1610 2007-08-16 Marc Boucher
1611 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1614 2007-08-16 Marc Boucher
1615 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1616 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1617 Added PPPoE support and various PPP improvements.
1619 2007-07-25 Simon Goldschmidt
1620 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1621 making netbuf_copy_partial use this function.
1623 2007-07-25 Simon Goldschmidt
1624 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1625 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1628 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1629 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1630 a link callback in the netif struct, and functions to handle it. Be carefull
1631 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1632 if you want to be sure to be compatible with future changes...
1634 2007-06-30 Frédéric Bernon
1635 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1637 2007-06-21 Simon Goldschmidt
1638 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1639 LWIP_AUTOIP =0 and =1 to remove redundant code.
1641 2007-06-21 Simon Goldschmidt
1642 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1643 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1644 heap. This both prevents memory fragmentation and gives a higher speed
1645 at the cost of more memory consumption. Turned off by default.
1647 2007-06-21 Simon Goldschmidt
1648 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1649 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1650 int to be able to send a bigger buffer than 64K with one time (mainly
1651 used from lwip_send).
1653 2007-06-21 Simon Goldschmidt
1654 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1655 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1657 2007-06-21 Simon Goldschmidt
1658 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1659 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1660 changes on low memory or empty send-buffer.
1662 2007-06-18 Simon Goldschmidt
1663 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1664 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1665 used for ethernet and struct eth_addr already had a defined length of 6).
1667 2007-06-17 Simon Goldschmidt
1668 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1669 to disable UDP checksum generation on transmit.
1671 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1672 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1673 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1674 this macro to check "conn" parameter in api_msg.c functions.
1676 2007-06-11 Simon Goldschmidt
1677 * sockets.c, sockets.h: Added UDP lite support for sockets
1679 2007-06-10 Simon Goldschmidt
1680 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1681 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1684 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1685 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1686 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1687 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1688 (see TODO mark in the source code).
1690 2007-06-09 Simon Goldschmidt
1691 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1692 etharp_output() to match netif->output so etharp_output() can be used
1693 directly as netif->output to save one function call.
1695 2007-06-08 Simon Goldschmidt
1696 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1697 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1698 added initialization of those to ethernetif, slipif and loopif.
1700 2007-05-18 Simon Goldschmidt
1701 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1702 (defaulting to off for now) that can be set to 0 to send fragmented
1703 packets by passing PBUF_REFs down the stack.
1705 2007-05-23 Frédéric Bernon
1706 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1707 connections, such present in patch #5959.
1709 2007-05-23 Frédéric Bernon
1710 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1711 code in only one part...
1713 2007-05-18 Simon Goldschmidt
1714 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1715 elements to overflow. This is achieved by adding some bytes before and after
1716 each pool element (increasing their size, of course), filling them with a
1717 prominent value and checking them on freeing the element.
1718 Set it to 2 to also check every element in every pool each time memp_malloc()
1719 or memp_free() is called (slower but more helpful).
1721 2007-05-10 Simon Goldschmidt
1722 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1723 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1726 2007-05-11 Frédéric Bernon
1727 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1728 Include a function pointer instead of a table index in the message to reduce
1729 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1730 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1732 2007-05-10 Simon Goldschmidt
1733 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1734 \ extern "C" {' in all header files. Now you can write your application using
1735 the lwIP stack in C++ and simply #include the core files. Note I have left
1736 out the netif/ppp/*h header files for now, since I don't know which files are
1737 included by applications and which are for internal use only.
1739 2007-05-09 Simon Goldschmidt
1740 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1741 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1742 situations where some compilers might inline the copy and save a function
1743 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1745 2007-05-08 Simon Goldschmidt
1746 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1747 to be overriden in case the C-library malloc implementation is not protected
1748 against concurrent access.
1750 2007-05-04 Simon Goldschmidt (Atte Kojo)
1751 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1752 multiple packets to the same host.
1754 2007-05-04 Frédéric Bernon, Jonathan Larmour
1755 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1756 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1757 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1758 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1759 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1760 these fields are now renamed "addr" & "port".
1762 2007-04-11 Jonathan Larmour
1763 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1764 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1765 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1766 by the port in sys_arch.h if desired.
1768 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1769 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1770 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1771 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1773 2007-04-05 Frédéric Bernon
1774 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1776 2007-04-04 Simon Goldschmidt
1777 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1778 use this for and architecture-independent form to tell the compiler you intentionally
1779 are not using this variable. Can be overriden in cc.h.
1781 2007-03-28 Frédéric Bernon
1782 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1783 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1784 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1785 It will be used by DHCP to register a client hostname, but can also be use when you call
1788 2007-03-28 Frédéric Bernon
1789 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1790 initialize a network interface's flag with. It tell this interface is an ethernet
1791 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1792 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1794 2007-03-26 Frédéric Bernon, Jonathan Larmour
1795 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1796 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1797 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1798 is done in tcpip_init function.
1800 2007-03-22 Frédéric Bernon
1801 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1802 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1803 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1804 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1805 but never used. Fix msg_in.c with the correct #if test for a stat display.
1807 2007-03-21 Kieran Mansley
1808 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1809 Provides callback on netif up/down state change.
1811 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1812 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1813 ip.c, netif.h, tcpip.c, opt.h:
1814 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1815 filter per all network interfaces. Declare a new function in netif to enable to
1816 control the MAC filter (to reduce lwIP traffic processing).
1818 2007-03-11 Frédéric Bernon
1819 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1820 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1821 unless you know what you're doing (default are RFC1122 compliant). Note
1822 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1824 2007-03-08 Frédéric Bernon
1825 * tcp.h: Keepalive values can be configured at compile time, but don't change
1826 this unless you know what you're doing (default are RFC1122 compliant).
1828 2007-03-08 Frédéric Bernon
1829 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1830 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1831 on UDP sockets/netconn.
1833 2007-03-08 Simon Goldschmidt
1834 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1836 2007-03-06 Frédéric Bernon
1837 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1838 Implement SO_RCVTIMEO on UDP sockets/netconn.
1840 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1841 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1842 on the stack and remove the API msg type from memp
1844 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1845 * sockets.h, sockets.c: Move socket initialization to new
1846 lwip_socket_init() function.
1847 NOTE: this changes the API with ports. Ports will have to be
1848 updated to call lwip_socket_init() now.
1850 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1851 * api_lib.c: Use memcpy in netbuf_copy_partial.
1856 2008-03-17 Frédéric Bernon, Ed Kerekes
1857 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1858 some problems to fill the IP header on some targets, use now the
1859 ip.h macros to do it).
1861 2008-03-13 Frédéric Bernon
1862 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1863 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1864 TCP connection caused a crash. Note that using (lwip_)recvfrom
1865 like this is a bit slow and that using (lwip)getpeername is the
1866 good lwip way to do it (so, using recv is faster on tcp sockets).
1868 2008-03-12 Frédéric Bernon, Jonathan Larmour
1869 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1870 recv_raw() does not consume data", and the ping sample (with
1871 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1872 returned the IP payload, without the IP header).
1874 2008-03-04 Jonathan Larmour
1875 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1876 and/or warnings on some systems where mem_size_t and size_t differ.
1877 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1879 2008-03-04 Kieran Mansley (contributions by others)
1880 * Numerous small compiler error/warning fixes from contributions to
1881 mailing list after 1.3.0 release candidate made.
1883 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1884 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1886 2008-01-15 Kieran Mansley
1887 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1888 prevented from sending by a small send window, not just a zero
1891 2008-01-09 Jonathan Larmour
1892 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1893 conflict with Linux system headers.
1895 2008-01-06 Jonathan Larmour
1896 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1897 address entirely on receiving a DHCPNAK, and restarting discovery.
1899 2007-12-21 Simon Goldschmidt
1900 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1901 is not protected" by using new macros for interlocked access to modify/test
1902 netconn->recv_avail.
1904 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1905 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1907 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1908 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1909 of silly window avoidance and prevent lwIP from shrinking the window)
1911 2007-12-04 Simon Goldschmidt
1912 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1913 data packet was lost): add assert that all segment lists are empty in
1914 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1915 state from LAST_ACK in tcp_process
1917 2007-12-02 Simon Goldschmidt
1918 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1919 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1920 has to be set to 0 in lwipopts.h
1922 2007-12-02 Simon Goldschmidt
1923 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1924 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1925 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1926 This is a fix for thread-safety and allocates all items needed for a netconn
1927 when the netconn is created.
1929 2007-11-30 Simon Goldschmidt
1930 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1931 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1932 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1933 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1935 2007-11-27 Simon Goldschmidt
1936 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1937 letting ip_route only use netifs that are up.
1939 2007-11-27 Simon Goldschmidt
1940 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1941 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1942 sockets block most operations once they have seen a fatal error.
1944 2007-11-27 Simon Goldschmidt
1945 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1946 netif to send as an argument (to be able to send on netifs that are down).
1948 2007-11-26 Simon Goldschmidt
1949 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1952 2007-11-21 Simon Goldschmidt
1953 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1954 Fixed the nagle algorithm; nagle now also works for all raw API applications
1955 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1957 2007-11-12 Frédéric Bernon
1958 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1959 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1960 context in do_getaddr.
1962 2007-11-10 Simon Goldschmidt
1963 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1964 happen any time). Now the packet simply isn't enqueued when out of memory.
1966 2007-11-01 Simon Goldschmidt
1967 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1968 TCP_MSS if that is smaller) as long as no MSS option is received from the
1971 2007-11-01 Simon Goldschmidt
1972 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1973 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1974 sending our configured TCP_MSS instead of the one received).
1976 2007-11-01 Simon Goldschmidt
1977 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1978 calculated based on the configured TCP_MSS, not on the MSS option received
1981 2007-10-09 Simon Goldschmidt
1982 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
1983 short and also was generated wrong if checksum coverage != tot_len;
1984 receive: checksum was calculated wrong if checksum coverage != tot_len
1986 2007-10-08 Simon Goldschmidt
1987 * mem.c: lfree was not updated in mem_realloc!
1989 2007-10-07 Frédéric Bernon
1990 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
1991 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
1992 this change cause an API breakage for netconn_addr, since a parameter
1993 type change. Any compiler should cause an error without any changes in
1994 yours netconn_peer calls (so, it can't be a "silent change"). It also
1995 reduce a little bit the footprint for socket layer (lwip_getpeername &
1996 lwip_getsockname use now a common lwip_getaddrname function since
1997 netconn_peer & netconn_addr have the same parameters).
1999 2007-09-20 Simon Goldschmidt
2000 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2001 by checking tcp_tw_pcbs also
2003 2007-09-19 Simon Goldschmidt
2004 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2006 2007-09-15 Mike Kleshov
2007 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2009 2007-09-06 Frédéric Bernon
2010 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2011 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2012 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2013 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2015 2007-08-30 Frédéric Bernon
2016 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2017 and fix some coding style.
2019 2007-08-28 Frédéric Bernon
2020 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2021 kind of packets. These packets are considered like Ethernet packets (payload
2022 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2023 are considered like IP packets (payload pointing to iphdr).
2025 2007-08-27 Frédéric Bernon
2026 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2027 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2028 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2030 2007-08-24 Kieran Mansley
2031 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2032 compiler (Paradigm C++)
2034 2007-08-09 Frédéric Bernon, Bill Florac
2035 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2036 Introduce IGMP_STATS to centralize statistics management.
2038 2007-08-09 Frédéric Bernon, Bill Florac
2039 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2040 packet on a udp pcb binded on an netif's IP address, and not on "any".
2042 2007-08-09 Frédéric Bernon, Bill Florac
2043 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2044 This is mainly on using lookup/lookfor, and some coding styles...
2046 2007-07-26 Frédéric Bernon (and "thedoctor")
2047 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2049 2007-07-25 Simon Goldschmidt
2050 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2051 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2052 (tcp_output is called again later from tcp timers).
2054 2007-07-25 Simon Goldschmidt
2055 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2056 copy_from_pbuf, which illegally modified the given pbuf.
2058 2007-07-25 Simon Goldschmidt
2059 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2060 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2062 2007-07-24 Simon Goldschmidt
2063 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2064 correct state (must be CLOSED).
2066 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2067 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2068 allocation. It now returns NULL.
2070 2007-07-13 Frédéric Bernon
2071 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2074 2007-07-13 Frédéric Bernon
2075 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2076 because current code doesn't follow rawapi.txt documentation.
2078 2007-07-13 Kieran Mansley
2079 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2080 out of sequence processing of received packets
2082 2007-07-03 Simon Goldschmidt
2083 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2084 assumption is made that this pbuf is in one piece (i.e. not chained). These
2085 assumptions clash with the possibility of converting to fully pool-based
2086 pbuf implementations, where PBUF_RAM pbufs might be chained.
2088 2007-07-03 Simon Goldschmidt
2089 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2090 when closing tcp netconns: removed conn->sem, less context switches when
2091 closing, both netconn_close and netconn_delete should safely close tcp
2094 2007-07-02 Simon Goldschmidt
2095 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2096 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2097 to cache ARP table indices with each pcb instead of single-entry cache for
2100 2007-07-02 Simon Goldschmidt
2101 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2102 warnings when assigning to smaller types.
2104 2007-06-28 Simon Goldschmidt
2105 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2107 2007-06-28 Simon Goldschmidt
2108 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2109 a segment contained chained pbufs)
2111 2007-06-28 Frédéric Bernon
2112 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2113 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2114 possible to define this macro in your own lwipopts.h to always use C library's
2115 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2117 2007-06-28 Frédéric Bernon
2118 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2119 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2120 in api_lib/api_msg (use pointers and not type with table, etc...)
2122 2007-06-26 Simon Goldschmidt
2123 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2125 2007-06-25 Simon Goldschmidt
2126 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2127 for udp packets with no matching pcb.
2129 2007-06-25 Simon Goldschmidt
2130 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2131 could get udp input packets if the remote side matched.
2133 2007-06-13 Simon Goldschmidt
2134 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2135 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2137 2007-06-13 Simon Goldschmidt
2138 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2139 -> netconn_new_..() does not allocate a new connection for unsupported
2142 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2143 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2144 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2146 2007-06-13 Frédéric Bernon, Matthias Weisser
2147 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2148 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2149 some macro names collision with some OS macros.
2151 2007-06-11 Simon Goldschmidt
2152 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2153 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2154 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2157 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2158 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2159 where TCP flags wasn't initialized in tcp_keepalive.
2161 2007-06-03 Simon Goldschmidt
2162 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2163 registered, p->payload was modified without modifying p->len if sending
2164 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2166 2007-06-03 Simon Goldschmidt
2167 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2168 re-used the input pbuf even if that didn't have enough space to include the
2169 link headers. Now the space is tested and a new pbuf is allocated for the
2170 echo response packet if the echo request pbuf isn't big enough.
2172 2007-06-01 Simon Goldschmidt
2173 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2175 2007-05-23 Frédéric Bernon
2176 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2177 allocated by do_listen if success) and netconn_accept errors handling. In
2178 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2179 by ASSERT, except for netconn_delete.
2181 2007-05-23 Frédéric Bernon
2182 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2183 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2184 directly close the recvmbox).
2186 2007-05-22 Simon Goldschmidt
2187 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2188 bound but unconnected (and non-listening) tcp_pcbs.
2190 2007-05-22 Frédéric Bernon
2191 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2192 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2193 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2194 like "sys_timeout" in their application threads.
2196 2007-05-22 Frédéric Bernon
2197 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2198 which parameters are used by which do_xxx function, and to avoid "misusing"
2199 parameters (patch #5938).
2201 2007-05-22 Simon Goldschmidt
2202 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2203 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2204 is only 8 bits wide. This affects the api, as there, the protocol was
2207 2007-05-18 Simon Goldschmidt
2208 * memp.c: addition to patch #5913: smaller pointer was returned but
2209 memp_memory was the same size -> did not save memory.
2211 2007-05-16 Simon Goldschmidt
2212 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2215 2007-05-16 Simon Goldschmidt
2216 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2217 as the one of the netif used for sending to prevent sending from old
2218 addresses after a netif address gets changed (partly fixes bug #3168).
2220 2007-05-16 Frédéric Bernon
2221 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2222 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2223 tcpip_init) because we have to be sure that network interfaces are already
2224 added (mac filter is updated only in igmp_init for the moment).
2226 2007-05-16 Simon Goldschmidt
2227 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2228 into sys_arch_sem_wait calls to prevent timers from running while waiting
2229 for the heap. This fixes bug #19167.
2231 2007-05-13 Simon Goldschmidt
2232 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2233 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2236 2007-05-07 Simon Goldschmidt
2237 * mem.c: Another attempt to fix bug #17922.
2239 2007-05-04 Simon Goldschmidt
2240 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2241 implementation so that it can be reused (don't allocate the target
2242 pbuf inside pbuf_copy()).
2244 2007-05-04 Simon Goldschmidt
2245 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2246 to save a little RAM (next pointer of memp is not used while not in pool).
2249 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2252 2007-04-23 Simon Goldschmidt
2253 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2254 in NULL reference for incoming TCP packets". Loopif has to be configured
2255 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2256 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2257 putting packets on a list that is fed to the stack by calling loopif_poll()
2258 (single-thread / NO_SYS / polling environment where e.g.
2259 netif->input() = ip_input).
2261 2007-04-17 Jonathan Larmour
2262 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2263 the difference between two u16_t's.
2264 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2265 MEMP_NUM_NETCONN in sockets.c right now.
2267 2007-04-12 Jonathan Larmour
2268 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2270 2007-04-12 Kieran Mansley
2271 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2272 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2274 2007-04-11 Simon Goldschmidt
2275 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2276 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2277 pbuf.c: removed functions no needed any more (by etharp).
2279 2007-04-11 Kieran Mansley
2280 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2281 "Constant is long" warnings with 16bit compilers. Contributed by
2282 avatar@mmlab.cse.yzu.edu.tw
2284 2007-04-05 Frédéric Bernon, Jonathan Larmour
2285 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2286 the mailbox is active". Now, the post is only done during a connect, and do_send,
2287 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2289 2007-04-03 Frédéric Bernon
2290 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2291 packets. See patch #5834.
2293 2007-03-30 Frédéric Bernon
2294 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2295 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2297 2007-03-30 Frédéric Bernon
2298 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2299 others environment defines (these were too "generic").
2301 2007-03-28 Frédéric Bernon
2302 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2303 result and can cause a crash. lwip_send now check netbuf_ref result.
2305 2007-03-28 Simon Goldschmidt
2306 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2307 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2308 defined. This is the way it should have been already (looking at
2311 2007-03-28 Kieran Mansley
2312 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2313 IP and TCP headers *and* physical link headers
2315 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2316 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2317 to send some garbage. It is not a definitive solution, but the patch does solve
2318 the problem for most cases.
2320 2007-03-22 Frédéric Bernon
2321 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2323 2007-03-22 Frédéric Bernon
2324 * api_lib.c: somes resources couldn't be freed if there was errors during
2325 netconn_new_with_proto_and_callback.
2327 2007-03-22 Frédéric Bernon
2328 * ethernetif.c: update netif->input calls to check return value. In older ports,
2329 it's a good idea to upgrade them, even if before, there could be another problem
2330 (access to an uninitialized mailbox).
2332 2007-03-21 Simon Goldschmidt
2333 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2334 by casting to unsigned).
2336 2007-03-21 Frédéric Bernon
2337 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2338 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2339 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2340 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2341 faster and more reliable communication between api_lib and tcpip.
2343 2007-03-21 Frédéric Bernon
2344 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2346 2007-03-21 Frédéric Bernon
2347 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2349 2007-03-21 Kieran Mansley
2350 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2353 2007-03-21 Kieran Mansley
2354 * Fix all uses of pbuf_header to check the return value. In some
2355 cases just assert if it fails as I'm not sure how to fix them, but
2356 this is no worse than before when they would carry on regardless
2359 2007-03-21 Kieran Mansley
2360 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2361 comment out missing header include in icmp.c
2363 2007-03-20 Frédéric Bernon
2364 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2365 synchronized with memp.h.
2367 2007-03-20 Frédéric Bernon
2368 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2369 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2370 network interfaces. Also fix a compiler warning.
2372 2007-03-20 Kieran Mansley
2373 * udp.c: Only try and use pbuf_header() to make space for headers if
2374 not a ROM or REF pbuf.
2376 2007-03-19 Frédéric Bernon
2377 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2380 2007-03-19 Frédéric Bernon
2381 * Remove unimplemented "memp_realloc" function from memp.h.
2383 2007-03-11 Simon Goldschmidt
2384 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2387 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2388 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2389 (missing `const' qualifier in socket functions), to get more compatible to
2390 standard POSIX sockets.
2392 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2393 * sockets.c: Add asserts inside bind, connect and sendto to check input
2394 parameters. Remove excessive set_errno() calls after get_socket(), because
2395 errno is set inside of get_socket(). Move last sock_set_errno() inside
2398 2007-03-09 Simon Goldschmidt
2399 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2400 was allocated too small.
2402 2007-03-06 Simon Goldschmidt
2403 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2404 the stack from concurrent access.
2406 2007-03-06 Frédéric Bernon, Dmitry Potapov
2407 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2408 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2410 2007-03-06 Simon Goldschmidt
2411 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2412 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2414 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2415 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2416 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2417 Allow to do ARP processing for incoming packets inside tcpip_thread
2418 (protecting ARP layer against concurrent access). You can also disable
2419 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2420 Older ports have to use tcpip_ethinput.
2422 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2423 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2424 from pointer target type"
2426 2007-03-05 Frédéric Bernon
2427 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2428 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2430 2007-03-04 Frédéric Bernon
2431 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2434 2007-03-04 Frédéric Bernon
2435 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2437 The api_msg struct stay on the stack (not moved to netconn struct).
2439 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2440 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2441 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2442 Also fixed cast warning in pbuf_alloc()
2444 2007-03-04 Simon Goldschmidt
2445 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2446 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2448 2007-03-03 Frédéric Bernon
2449 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2450 It is static, and never used in udp.c except udp_init().
2452 2007-03-02 Simon Goldschmidt
2453 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2454 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2455 initialized before tcpip_thread is running (e.g. before OS is started)
2457 2007-03-02 Frédéric Bernon
2458 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2461 2007-02-28 Kieran Mansley
2462 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2463 outside the region of the pbuf by pbuf_header()
2465 2007-02-28 Kieran Mansley
2466 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2467 when supplied timeout is also non-zero
2471 2006-12-05 Leon Woestenberg
2472 * CHANGELOG: Mention STABLE-1.2.0 release.
2476 2006-12-01 Christiaan Simons
2477 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2478 Note this is a workaround. Currently I have no other options left.
2480 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2481 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2482 to include/lwip/opt.h.
2483 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2484 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2485 * opt.h: Add above new options.
2487 2006-08-18 Christiaan Simons
2488 * tcp_{in,out}.c: added SNMP counters.
2489 * ipv4/ip.c: added SNMP counters.
2490 * ipv4/ip_frag.c: added SNMP counters.
2492 2006-08-08 Christiaan Simons
2493 * etharp.{c,h}: added etharp_find_addr() to read
2494 (stable) ethernet/IP address pair from ARP table
2496 2006-07-14 Christiaan Simons
2497 * mib_structs.c: added
2498 * include/lwip/snmp_structs.h: added
2499 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2501 2006-07-06 Christiaan Simons
2502 * snmp/asn1_{enc,dec}.c added
2504 * snmp/msg_{in,out}.c added
2505 * include/lwip/snmp_asn1.h added
2506 * include/lwip/snmp_msg.h added
2507 * doc/snmp_agent.txt added
2509 2006-03-29 Christiaan Simons
2510 * inet.c, inet.h: Added platform byteswap support.
2511 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2512 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2516 2006-11-30 Christiaan Simons
2517 * dhcp.c: Fixed false triggers of request_timeout.
2519 2006-11-28 Christiaan Simons
2520 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2522 2006-10-11 Christiaan Simons
2523 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2524 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2525 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2526 identifier from 170 to 136 (bug #17574).
2528 2006-10-10 Christiaan Simons
2529 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2531 2006-08-17 Christiaan Simons
2532 * udp.c: Fixed bug #17200, added check for broadcast
2533 destinations for PCBs bound to a unicast address.
2535 2006-08-07 Christiaan Simons
2536 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2538 2006-06-27 Christiaan Simons
2539 * api_msg.c: Applied patch for cold case (bug #11135).
2540 In accept_function() ensure newconn->callback is always initialized.
2542 2006-06-15 Christiaan Simons
2543 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2544 facilitate printing of mem_size_t and u16_t statistics.
2546 2006-06-14 Christiaan Simons
2547 * api_msg.c: Applied patch #5146 to handle allocation failures
2548 in accept() by Kevin Lawson.
2550 2006-05-26 Christiaan Simons
2551 * api_lib.c: Removed conn->sem creation and destruction
2552 from netconn_write() and added sys_sem_new to netconn_new_*.
2556 2006-03-03 Christiaan Simons
2557 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2558 access and added pbuf_alloc() return value checks.
2560 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2561 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2562 now handled by the checksum routine properly.
2564 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2565 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2566 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2568 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2569 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2570 submitted by Mitrani Hiroshi.
2572 2005-12-15 Christiaan Simons
2573 * inet.c: Disabled the added summing routine to preserve code space.
2575 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2576 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2577 Added Curt McDowell's optimized checksumming routine for future
2578 inclusion. Need to create test case for unaliged, aligned, odd,
2579 even length combination of cases on various endianess machines.
2581 2005-12-09 Christiaan Simons
2582 * inet.c: Rewrote standard checksum routine in proper portable C.
2584 2005-11-25 Christiaan Simons
2585 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2586 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2587 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2589 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2590 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2591 routine by Peter Jolasson.
2592 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2594 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2595 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2596 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2598 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2599 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2601 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2602 * udp.c: UDP pcb->recv() was called even when it was NULL.
2606 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2607 * etharp.*: Disabled multiple packets on the ARP queue.
2608 This clashes with TCP queueing.
2610 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2611 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2612 Halved the ARP period, doubled the period counts.
2613 ETHARP_MAX_PENDING now should be at least 2. This prevents
2614 the counter from reaching 0 right away (which would allow
2615 too little time for ARP responses to be received).
2617 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2618 * dhcp.c: Decline messages were not multicast but unicast.
2619 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2620 Do not try hard to insert arbitrary packet's source address,
2621 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2622 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2623 querying an address will see it appear in the cache (DHCP could
2624 suffer from this when a server invalidly gave an in-use address.)
2625 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2626 comparing network addresses (identifiers), not the network masks
2628 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2629 IP address actually belongs to the network of the given interface.
2631 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2632 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2636 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2637 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2638 even if one is already pending, if the rcv_wnd is above a threshold
2639 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2640 delayed ACK in order to open the window if the stack is only receiving data.
2642 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2643 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2645 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2646 * etharp.c: Make sure the first pbuf queued on an ARP entry
2647 is properly ref counted.
2649 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2650 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2651 warnings about comparison.
2652 * pbuf.c: Stopped compiler complaining of empty if statement
2653 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2654 * tcp.c: Stopped compiler complaining of empty if statement
2655 when LWIP_DEBUGF() empty.
2656 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2657 * inet.c: Added a couple of casts to quiet the compiler.
2658 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2660 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2661 * inet.c: Made data types consistent in inet_ntoa().
2662 Added casts for return values of checksum routines, to pacify compiler.
2663 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2664 Small corrections to some debugging statements, to pacify compiler.
2666 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2667 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2668 * ethernetif.c Updated low_level_output() to match prototype for
2669 netif->linkoutput and changed low_level_input() similarly for consistency.
2670 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2671 of raw_recv() in raw.h and so avoid compiler error.
2672 * sockets.c: Added trivial (int) cast to keep compiler happier.
2673 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2679 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2680 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2681 your cc.h file defines this either 1 or 0. If non-defined,
2683 * .c: Added <string.h> and <errno.h> includes where used.
2684 * etharp.c: Made some array indices unsigned.
2686 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2687 * netif.*: Added netif_set_up()/down().
2688 * dhcp.c: Changes to restart program flow.
2690 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2691 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2692 single-pass lookup for different candidates. Should exploit locality.
2694 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2695 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2696 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2697 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2698 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2702 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2703 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2704 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2705 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2706 is to prefix the 14-bit Ethernet headers with two padding bytes.
2708 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2709 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2710 * etharp.c: Fixed the case where the packet that initiates the ARP request
2711 is not queued, and gets lost. Fixed the case where the packets destination
2712 address is already known; we now always queue the packet and perform an ARP
2719 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2720 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2721 * Fixed two possible NULL references in rare cases.
2727 * Fixed DHCP which did not include the IP address in DECLINE messages.
2731 * etharp.c has been hauled over a bit.
2737 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2738 * Packets sent from ARP queue had invalid source hardware address.
2742 * Pass-by ARP requests do now update the cache.
2746 * No longer dependent on ctype.h.
2747 * New socket options.
2748 * Raw IP pcb support.
2754 * Some debug formatters and casts fixed.
2755 * Numereous fixes in PPP.
2759 * DEBUGF now is LWIP_DEBUGF
2760 * pbuf_dechain() has been re-enabled.
2761 * Mentioned the changed use of CVS branches in README.
2767 * Fixed pool pbuf memory leak in pbuf_alloc().
2768 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2769 Reported by Savin Zlobec.
2771 * PBUF_POOL chains had their tot_len field not set for non-first
2772 pbufs. Fixed in pbuf_alloc().
2776 * Added PPP stack contributed by Marc Boucher
2780 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2782 * ARP queueuing now queues the latest packet instead of the first.
2783 This is the RFC recommended behaviour, but can be overridden in
2790 * TCP has been fixed to deal with the new use of the pbuf->ref
2793 * DHCP dhcp_inform() crash bug fixed.
2797 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2798 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2799 Implemented by David Haas.
2805 * The packet buffer implementation has been enhanced to support
2806 zero-copy and copy-on-demand for packet buffers which have their
2807 payloads in application-managed memory.
2808 Implemented by David Haas.
2810 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2811 if an outgoing packet can be directly sent on the link, or perform
2812 a copy-on-demand when necessary.
2814 The application can safely assume the packet is sent, and the RAM
2815 is available to the application directly after calling udp_send()
2816 or similar function.
2820 * ARP_QUEUEING should now correctly work for all cases, including
2822 Implemented by Leon Woestenberg.
2826 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2827 to a '0.0.0.0' IP address.
2829 * The packet buffer implementation is changed. The pbuf->ref counter
2830 meaning has changed, and several pbuf functions have been
2831 adapted accordingly.
2833 * netif drivers have to be changed to set the hardware address length field
2834 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2835 See the contrib/ports/c16x cs8900 driver as a driver example.
2837 * netif's have a dhcp field that must be initialized to NULL by the driver.
2838 See the contrib/ports/c16x cs8900 driver as a driver example.
2840 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2841 logged in CVS but have not been explained here.
2843 (0.5.3) Changes since version 0.5.2
2847 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2848 threads because it wasn't protected by semaphores.
2852 * struct ip_addr now packed.
2854 * The name of the time variable in arp.c has been changed to ctime
2855 to avoid conflicts with the time() function.
2857 (0.5.2) Changes since version 0.5.1
2861 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2865 * A bug in tcp_parseopt() could cause the stack to hang because of a
2866 malformed TCP option.
2868 * The address of new connections in the accept() function in the BSD
2869 socket library was not handled correctly.
2871 * pbuf_dechain() did not update the ->tot_len field of the tail.
2873 * Aborted TCP connections were not handled correctly in all
2878 * All protocol header structs are now packed.
2880 * The ->len field in the tcp_seg structure now counts the actual
2881 amount of data, and does not add one for SYN and FIN segments.
2883 (0.5.1) Changes since version 0.5.0
2887 * Possible to run as a user process under Linux.
2889 * Preliminary support for cross platform packed structs.
2891 * ARP timer now implemented.
2895 * TCP output queue length was badly initialized when opening
2898 * TCP delayed ACKs were not sent correctly.
2900 * Explicit initialization of BSS segment variables.
2902 * read() in BSD socket library could drop data.
2904 * Problems with memory alignment.
2906 * Situations when all TCP buffers were used could lead to
2909 * TCP MSS option wasn't parsed correctly.
2911 * Problems with UDP checksum calculation.
2913 * IP multicast address tests had endianess problems.
2915 * ARP requests had wrong destination hardware address.
2919 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2921 * A ->linkoutput() member was added to struct netif.
2923 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2925 * ntoh* macros are now null definitions for big endian CPUs.
2927 (0.5.0) Changes since version 0.4.2
2931 * Redesigned operating system emulation layer to make porting easier.
2933 * Better control over TCP output buffers.
2935 * Documenation added.
2939 * Locking issues in buffer management.
2941 * Bugfixes in the sequential API.
2943 * IP forwarding could cause memory leakage. This has been fixed.
2947 * Directory structure somewhat changed; the core/ tree has been
2950 (0.4.2) Changes since version 0.4.1
2954 * Experimental ARP implementation added.
2956 * Skeleton Ethernet driver added.
2958 * Experimental BSD socket API library added.
2962 * In very intense situations, memory leakage could occur. This has
2967 * Variables named "data" and "code" have been renamed in order to
2968 avoid name conflicts in certain compilers.
2970 * Variable++ have in appliciable cases been translated to ++variable
2971 since some compilers generate better code in the latter case.
2973 (0.4.1) Changes since version 0.4
2977 * TCP: Connection attempts time out earlier than data
2978 transmissions. Nagle algorithm implemented. Push flag set on the
2979 last segment in a burst.
2981 * UDP: experimental support for UDP-Lite extensions.
2985 * TCP: out of order segments were in some cases handled incorrectly,
2986 and this has now been fixed. Delayed acknowledgements was broken
2987 in 0.4, has now been fixed. Binding to an address that is in use
2988 now results in an error. Reset connections sometimes hung an
2989 application; this has been fixed.
2991 * Checksum calculation sometimes failed for chained pbufs with odd
2992 lengths. This has been fixed.
2994 * API: a lot of bug fixes in the API. The UDP API has been improved
2995 and tested. Error reporting and handling has been
2996 improved. Logical flaws and race conditions for incoming TCP
2997 connections has been found and removed.
2999 * Memory manager: alignment issues. Reallocating memory sometimes
3000 failed, this has been fixed.
3002 * Generic library: bcopy was flawed and has been fixed.
3006 * API: all datatypes has been changed from generic ones such as
3007 ints, to specified ones such as u16_t. Functions that return
3008 errors now have the correct type (err_t).
3010 * General: A lot of code cleaned up and debugging code removed. Many
3011 portability issues have been fixed.
3013 * The license was changed; the advertising clause was removed.
3017 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3018 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3021 (0.4) Changes since version 0.3.1
3023 * Memory management has been radically changed; instead of
3024 allocating memory from a shared heap, memory for objects that are
3025 rapidly allocated and deallocated is now kept in pools. Allocation
3026 and deallocation from those memory pools is very fast. The shared
3027 heap is still present but is used less frequently.
3029 * The memory, memory pool, and packet buffer subsystems now support
3030 4-, 2-, or 1-byte alignment.
3032 * "Out of memory" situations are handled in a more robust way.
3034 * Stack usage has been reduced.
3036 * Easier configuration of lwIP parameters such as memory usage,
3037 TTLs, statistics gathering, etc. All configuration parameters are
3038 now kept in a single header file "lwipopts.h".
3040 * The directory structure has been changed slightly so that all
3041 architecture specific files are kept under the src/arch
3044 * Error propagation has been improved, both in the protocol modules
3047 * The code for the RTXC architecture has been implemented, tested
3050 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3051 the Internet checksum modules.
3053 * Bugs related to porting between a 32-bit and a 16-bit architecture
3054 have been found and corrected.
3056 * The license has been changed slightly to conform more with the
3057 original BSD license, including the advertisement clause.
3059 (0.3.1) Changes since version 0.3
3061 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3062 RAM never returned the RAM when the pbuf was deallocated.
3064 * TCP congestion control, window updates and retransmissions did not
3065 work correctly. This has now been fixed.
3067 * Bugfixes in the API.
3069 (0.3) Changes since version 0.2
3071 * New and improved directory structure. All include files are now
3072 kept in a dedicated include/ directory.
3074 * The API now has proper error handling. A new function,
3075 netconn_err(), now returns an error code for the connection in
3078 * Improvements in the memory management subsystem. The system now
3079 keeps a pointer to the lowest free memory block. A new function,
3080 mem_malloc2() tries to allocate memory once, and if it fails tries
3081 to free some memory and retry the allocation.
3083 * Much testing has been done with limited memory
3084 configurations. lwIP now does a better job when overloaded.
3086 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3088 * Many bugfixes in the TCP code:
3090 - Fixed a bug in tcp_close().
3092 - The TCP receive window was incorrectly closed when out of
3093 sequence segments was received. This has been fixed.
3095 - Connections are now timed-out of the FIN-WAIT-2 state.
3097 - The initial congestion window could in some cases be too
3098 large. This has been fixed.
3100 - The retransmission queue could in some cases be screwed up. This
3103 - TCP RST flag now handled correctly.
3105 - Out of sequence data was in some cases never delivered to the
3106 application. This has been fixed.
3108 - Retransmitted segments now contain the correct acknowledgment
3109 number and advertised window.
3111 - TCP retransmission timeout backoffs are not correctly computed
3112 (ala BSD). After a number of retransmissions, TCP now gives up
3115 * TCP connections now are kept on three lists, one for active
3116 connections, one for listening connections, and one for
3117 connections that are in TIME-WAIT. This greatly speeds up the fast
3118 timeout processing for sending delayed ACKs.
3120 * TCP now provides proper feedback to the application when a
3121 connection has been successfully set up.
3123 * More comments have been added to the code. The code has also been
3124 somewhat cleaned up.
3126 (0.2) Initial public release.